Station Overview Station Location
Station Number MD-PG-3 Latitude 38.7953
Station Name Oxon Hill 1.1 W Longitude -76.9955
County Prince George's Elevation (ft) 184



Month 30 Yr Avg by PRISM Total Prcp Sum Days Covered By All Observations Daily Prcp Sum Daily Observation Count Multiday Prcp Sum Days Covered by Multiday Observations Multiday Observation Count Days With Prcp Days With Trace Total Snowfall Days With Snowfall Days With Snow On Ground
Oct 11 3.61 3.80 31 3.80 31 0.00 0 0 13 1 0.1 1 0
Nov 11 3.32 2.38 30 2.38 30 0.00 0 0 9 1 0.0 0 0
Dec 11 3.23 5.23 31 5.23 31 0.00 0 0 7 4 0.0 0 0
Jan 12 3.00 2.10 30 2.10 30 0.00 0 0 10 5 2.3 2 1
Feb 12 2.68 1.15 29 1.15 29 0.00 0 0 11 4 0.4 3 0
March 12 3.65 2.28 31 2.28 31 0.00 0 0 9 7 0.0 0 0
April 12 3.31 2.16 30 2.16 30 0.00 0 0 8 3 0.0 0 0
May 12 4.17 3.70 31 3.70 31 0.00 0 0 16 3 0.0 0 0
June 12 3.80 3.62 30 3.62 30 0.00 0 0 6 2 0.0 0 0
July 12 3.96 2.96 31 2.96 31 0.00 0 0 9 4 0.0 0 0
Aug 12 3.23 2.96 31 2.96 31 0.00 0 0 12 4 0.0 0 0
Sept 12 3.68 4.68 30 4.68 30 0.00 0 0 9 1 0.0 0 0
Water Year Totals: 41.64" 37.02" 365 days 37.02" 365 0.00" 0 days 0 119 days 39 days 2.8" 6 days 1 days



Days in Water Year Cell Color Key
        Daily Observation with Prcp         Missing Day
        Multiday Observation         Daily/Multiday Observation Conflict

Day of Year Daily Prcp Multiday Prcp
10/1/2011 0.00
10/2/2011 0.45
10/3/2011 0.15
10/4/2011 T
10/5/2011 0.00
10/6/2011 0.00
10/7/2011 0.00
10/8/2011 0.00
10/9/2011 0.00
10/10/2011 0.00
10/11/2011 0.00
10/12/2011 0.01
10/13/2011 0.54
10/14/2011 0.26
10/15/2011 0.23
10/16/2011 0.00
10/17/2011 0.00
10/18/2011 0.00
10/19/2011 0.31
10/20/2011 0.14
10/21/2011 0.00
10/22/2011 0.00
10/23/2011 0.00
10/24/2011 0.00
10/25/2011 0.16
10/26/2011 0.00
10/27/2011 0.05
10/28/2011 0.14
10/29/2011 0.55
10/30/2011 0.81
10/31/2011 0.00
11/1/2011 0.00
11/2/2011 0.00
11/3/2011 0.00
11/4/2011 0.00
11/5/2011 0.00
11/6/2011 0.00
11/7/2011 0.00
11/8/2011 0.00
11/9/2011 0.00
11/10/2011 0.00
11/11/2011 0.05
11/12/2011 0.00
11/13/2011 0.00
11/14/2011 0.00
11/15/2011 0.00
11/16/2011 0.11
11/17/2011 0.64
11/18/2011 T
11/19/2011 0.00
11/20/2011 0.00
11/21/2011 0.08
11/22/2011 0.22
11/23/2011 0.69
11/24/2011 0.02
11/25/2011 0.00
11/26/2011 0.00
11/27/2011 0.00
11/28/2011 0.00
11/29/2011 0.02
11/30/2011 0.55
12/1/2011 0.00
12/2/2011 0.00
12/3/2011 0.00
12/4/2011 0.00
12/5/2011 0.00
12/6/2011 T
12/7/2011 1.40
12/8/2011 2.31
12/9/2011 0.00
12/10/2011 0.00
12/11/2011 0.00
12/12/2011 0.00
12/13/2011 0.00
12/14/2011 0.00
12/15/2011 0.00
12/16/2011 0.01
12/17/2011 0.00
12/18/2011 0.00
12/19/2011 0.00
12/20/2011 0.00
12/21/2011 T
12/22/2011 0.12
12/23/2011 0.75
12/24/2011 0.01
12/25/2011 0.00
12/26/2011 0.00
12/27/2011 0.00
12/28/2011 0.63
12/29/2011 0.00
12/30/2011 T
12/31/2011 T
Day of YearDaily PrcpMultiday Prcp
1/1/2012 0.00
1/2/2012 T
1/3/2012 0.00
1/4/2012 T
1/5/2012 T
1/6/2012 0.00
1/7/2012 0.00
1/8/2012 0.00
1/9/2012 0.00
1/10/2012 0.17
1/11/2012 0.00
1/12/2012 0.71
1/13/2012 0.18
1/14/2012
1/15/2012 0.00
1/16/2012 0.00
1/17/2012 0.15
1/18/2012 0.22
1/19/2012 0.00
1/20/2012 0.00
1/21/2012 0.26
1/22/2012 0.03
1/23/2012 T
1/24/2012 0.04
1/25/2012 0.00
1/26/2012 T
1/27/2012 0.03
1/28/2012 0.31
1/29/2012 0.00
1/30/2012 0.00
1/31/2012 0.00
2/1/2012 0.04
2/2/2012 0.12
2/3/2012 0.01
2/4/2012 0.00
2/5/2012 0.12
2/6/2012 T
2/7/2012 0.00
2/8/2012 0.00
2/9/2012 0.12
2/10/2012 0.00
2/11/2012 0.18
2/12/2012 0.02
2/13/2012 0.00
2/14/2012 0.00
2/15/2012 0.00
2/16/2012 T
2/17/2012 0.11
2/18/2012 0.00
2/19/2012 0.00
2/20/2012 0.13
2/21/2012 0.00
2/22/2012 0.00
2/23/2012 T
2/24/2012 0.01
2/25/2012 0.29
2/26/2012 T
2/27/2012 0.00
2/28/2012 0.00
2/29/2012 0.00
3/1/2012 1.41
3/2/2012 0.00
3/3/2012 0.42
3/4/2012 0.04
3/5/2012 0.00
3/6/2012 T
3/7/2012 0.00
3/8/2012 0.00
3/9/2012 0.03
3/10/2012 0.00
3/11/2012 0.00
3/12/2012 0.00
3/13/2012 0.02
3/14/2012 0.00
3/15/2012 0.00
3/16/2012 0.00
3/17/2012 0.02
3/18/2012 T
3/19/2012 T
3/20/2012 T
3/21/2012 0.03
3/22/2012 T
3/23/2012 0.00
3/24/2012 0.00
3/25/2012 0.30
3/26/2012 T
3/27/2012 0.00
3/28/2012 0.00
3/29/2012 0.01
3/30/2012 0.00
3/31/2012 T
Day of YearDaily PrcpMultiday Prcp
4/1/2012 0.00
4/2/2012 0.16
4/3/2012 0.00
4/4/2012 0.00
4/5/2012 0.00
4/6/2012 0.00
4/7/2012 0.00
4/8/2012 0.00
4/9/2012 0.00
4/10/2012 T
4/11/2012 0.00
4/12/2012 T
4/13/2012 0.00
4/14/2012 0.00
4/15/2012 T
4/16/2012 0.00
4/17/2012 0.00
4/18/2012 0.00
4/19/2012 0.06
4/20/2012 0.00
4/21/2012 0.00
4/22/2012 0.15
4/23/2012 1.44
4/24/2012 0.06
4/25/2012 0.00
4/26/2012 0.02
4/27/2012 0.05
4/28/2012 0.00
4/29/2012 0.22
4/30/2012 0.00
5/1/2012 0.11
5/2/2012 0.05
5/3/2012 T
5/4/2012 0.01
5/5/2012 0.23
5/6/2012 0.01
5/7/2012 T
5/8/2012 0.00
5/9/2012 0.23
5/10/2012 0.54
5/11/2012 0.00
5/12/2012 0.00
5/13/2012 0.00
5/14/2012 0.04
5/15/2012 0.95
5/16/2012 0.20
5/17/2012 0.00
5/18/2012 0.00
5/19/2012 0.00
5/20/2012 0.00
5/21/2012 0.03
5/22/2012 0.03
5/23/2012 0.02
5/24/2012 0.13
5/25/2012 T
5/26/2012 0.00
5/27/2012 0.00
5/28/2012 0.19
5/29/2012 0.00
5/30/2012 0.93
5/31/2012 0.00
6/1/2012 0.01
6/2/2012 2.60
6/3/2012 0.00
6/4/2012 0.00
6/5/2012 0.00
6/6/2012 0.00
6/7/2012 0.06
6/8/2012 0.00
6/9/2012 0.00
6/10/2012 0.00
6/11/2012 0.00
6/12/2012 0.11
6/13/2012 0.16
6/14/2012 0.00
6/15/2012 0.00
6/16/2012 0.00
6/17/2012 0.00
6/18/2012 0.00
6/19/2012 0.00
6/20/2012 0.00
6/21/2012 0.00
6/22/2012 0.00
6/23/2012 T
6/24/2012 0.00
6/25/2012 0.00
6/26/2012 T
6/27/2012 0.00
6/28/2012 0.00
6/29/2012 0.00
6/30/2012 0.68
Day of YearDaily PrcpMultiday Prcp
7/1/2012 0.00
7/2/2012 0.00
7/3/2012 0.00
7/4/2012 0.11
7/5/2012 0.00
7/6/2012 0.00
7/7/2012 0.00
7/8/2012 0.00
7/9/2012 0.77
7/10/2012 0.02
7/11/2012 0.00
7/12/2012 0.00
7/13/2012 0.00
7/14/2012 T
7/15/2012 0.08
7/16/2012 0.04
7/17/2012 0.00
7/18/2012 0.00
7/19/2012 0.00
7/20/2012 1.23
7/21/2012 0.18
7/22/2012 0.28
7/23/2012 0.00
7/24/2012 0.00
7/25/2012 T
7/26/2012 0.00
7/27/2012 T
7/28/2012 T
7/29/2012 0.25
7/30/2012 0.00
7/31/2012 0.00
8/1/2012 T
8/2/2012 0.01
8/3/2012 0.00
8/4/2012 0.00
8/5/2012 0.00
8/6/2012 0.05
8/7/2012 T
8/8/2012 0.00
8/9/2012 0.00
8/10/2012 0.04
8/11/2012 1.11
8/12/2012 0.13
8/13/2012 0.00
8/14/2012 0.01
8/15/2012 0.35
8/16/2012 0.00
8/17/2012 0.00
8/18/2012 0.19
8/19/2012 0.00
8/20/2012 0.23
8/21/2012 0.02
8/22/2012 0.00
8/23/2012 0.00
8/24/2012 0.00
8/25/2012 0.00
8/26/2012 0.17
8/27/2012 0.65
8/28/2012 T
8/29/2012 T
8/30/2012 0.00
8/31/2012 0.00
9/1/2012 0.00
9/2/2012 1.27
9/3/2012 0.07
9/4/2012 T
9/5/2012 0.00
9/6/2012 0.19
9/7/2012 0.25
9/8/2012 0.00
9/9/2012 0.82
9/10/2012 0.00
9/11/2012 0.00
9/12/2012 0.00
9/13/2012 0.00
9/14/2012 0.00
9/15/2012 0.00
9/16/2012 0.00
9/17/2012 0.00
9/18/2012 0.26
9/19/2012 1.07
9/20/2012 0.00
9/21/2012 0.00
9/22/2012 0.00
9/23/2012 0.00
9/24/2012 0.00
9/25/2012 0.00
9/26/2012 0.00
9/27/2012 0.00
9/28/2012 0.58
9/29/2012 0.17
9/30/2012 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2011 7:00 AM 0.00 0.0 M M M
10/2/2011 7:00 AM 0.45 M M M M
10/3/2011 7:00 AM 0.15 M M M M
10/4/2011 7:00 AM T 0.0 M 0.0 M
10/5/2011 7:00 AM 0.00 0.0 M 0.0 M
10/6/2011 7:00 AM 0.00 0.0 M 0.0 M
10/7/2011 7:00 AM 0.00 0.0 M 0.0 M
10/8/2011 7:00 AM 0.00 0.0 M 0.0 M
10/9/2011 7:00 AM 0.00 0.0 M 0.0 M
10/10/2011 7:00 AM 0.00 0.0 M 0.0 M
10/11/2011 7:00 AM 0.00 0.0 M 0.0 M
10/12/2011 7:00 AM 0.01 0.0 M 0.0 M Occasional -RA early this morning.
10/13/2011 7:45 AM 0.54 0.0 M 0.0 M SHRA yesterday afternoon. -RADZ through overnight. +SHRA 0730-0745; -SHRA at obs time.
10/14/2011 7:50 AM 0.26 0.0 M 0.0 M Showers off and on yesterday afternoon and evening; TS but no rain 6-7PM. -SHRA at obs time.
10/15/2011 7:00 AM 0.23 0.0 M 0.0 M -TSRA nidnorning otherwise -SHRA.
10/16/2011 7:00 AM 0.00 0.0 M 0.0 M
10/17/2011 7:00 AM 0.00 0.0 M 0.0 M
10/18/2011 7:00 AM 0.00 0.0 M 0.0 M
10/19/2011 7:00 AM 0.31 0.0 M 0.0 M -RA began in the predawn.
10/20/2011 7:00 AM 0.14 0.0 M 0.0 M -RADZ in the afternoon and evening.
10/21/2011 7:00 AM 0.00 0.0 M 0.0 M
10/22/2011 7:00 AM 0.00 0.0 M 0.0 M
10/23/2011 7:00 AM 0.00 0.0 M 0.0 M
10/24/2011 7:00 AM 0.00 0.0 M 0.0 M
10/25/2011 7:00 AM 0.16 0.0 M 0.0 M Brief SHRA around 8 PM otherwise -SHRA.
10/26/2011 7:00 AM 0.00 0.0 M 0.0 M
10/27/2011 8:00 AM 0.05 0.0 M 0.0 M Occasional -RA.
10/28/2011 7:00 AM 0.14 0.0 M 0.0 M Occasional -RA until early evening.
10/29/2011 7:30 AM 0.55 0.0 M 0.0 M -RA briefly RA overnight. -RA at obs time. No SN observed after the night shift during the trip from DCA to Oxon Hill, between 0710 and 0730.
10/30/2011 7:45 AM 0.81 0.1 M 0.0 M -RA through early afternoon; -RASN 2PM-4:30 PM, then short burst of high-end -SN 4:30-5:00 PM dropped about 0.1 inch; then occasional -RAPL 5-8 PM. Widespread heavy frost despite overnight temperatures not going below 35F.
10/31/2011 7:00 AM 0.00 0.0 M 0.0 M Frist freeze of the season; overnight min temp 32F.
11/1/2011 7:00 AM 0.00 0.0 M 0.0 M
11/2/2011 7:00 AM 0.00 0.0 M 0.0 M
11/3/2011 7:00 AM 0.00 0.0 M 0.0 M
11/4/2011 7:00 AM 0.00 0.0 M 0.0 M
11/5/2011 7:00 AM 0.00 0.0 M 0.0 M
11/6/2011 7:00 AM 0.00 0.0 M 0.0 M
11/7/2011 7:00 AM 0.00 0.0 M 0.0 M
11/8/2011 7:00 AM 0.00 0.0 M 0.0 M
11/9/2011 7:00 AM 0.00 0.0 M 0.0 M
11/10/2011 7:00 AM 0.00 0.0 M 0.0 M
11/11/2011 7:00 AM 0.05 0.0 M 0.0 M -RA in the afternoon and evening.
11/12/2011 7:00 AM 0.00 0.0 M 0.0 M
11/13/2011 7:00 AM 0.00 0.0 M 0.0 M
11/14/2011 7:00 AM 0.00 0.0 M 0.0 M
11/15/2011 7:00 AM 0.00 0.0 M 0.0 M
11/16/2011 7:00 AM 0.11 0.0 M 0.0 M -SHRA started around 1 AM.
11/17/2011 7:00 AM 0.64 0.0 M 0.0 M -RA for the past 24 hours.
11/18/2011 7:00 AM T 0.0 M 0.0 M Sprinkles until about noon.
11/19/2011 7:00 AM 0.00 0.0 M 0.0 M
11/20/2011 7:00 AM 0.00 0.0 M 0.0 M
11/21/2011 7:00 AM 0.08 0.0 M 0.0 M -RA overnight.
11/22/2011 7:00 AM 0.22 0.0 M 0.0 M Light rain and drizzle overnight.
11/23/2011 7:00 AM 0.69 0.0 M 0.0 M Showers through about 5 AM.
11/24/2011 7:00 AM 0.02 0.0 M 0.0 M -SHRA late morning and 4-5 PM.
11/25/2011 7:00 AM 0.00 0.0 M 0.0 M
11/26/2011 7:00 AM 0.00 0.0 M 0.0 M
11/27/2011 7:00 AM 0.00 0.0 M 0.0 M
11/28/2011 7:00 AM 0.00 0.0 M 0.0 M
11/29/2011 7:00 AM 0.02 0.0 M 0.0 M -SHRA this morning.
11/30/2011 7:00 AM 0.55 0.0 M 0.0 M -RA with few +SHRA midmorning through midafternoon.
12/1/2011 7:00 AM 0.00 0.0 M 0.0 M
12/2/2011 7:00 AM 0.00 0.0 M 0.0 M
12/3/2011 7:00 AM 0.00 0.0 M 0.0 M
12/4/2011 7:00 AM 0.00 0.0 M 0.0 M
12/5/2011 7:00 AM 0.00 0.0 M 0.0 M
12/6/2011 7:00 AM T 0.0 M 0.0 M -RA this morning.
12/7/2011 7:00 AM 1.40 0.0 M 0.0 M -RA through 11 PM; +RA to RA 5-7 AM.
12/8/2011 8:00 AM 2.31 T M 0.0 M Storm total 3.71 inches. UPDATE: According to a neighbor, the rain ended with a brief mix of wet snow shortly after 11 PM (such as I observed at DCA that night).
12/9/2011 7:00 AM 0.00 0.0 M 0.0 M
12/10/2011 7:00 AM 0.00 0.0 M 0.0 M
12/11/2011 7:00 AM 0.00 0.0 M 0.0 M
12/12/2011 7:00 AM 0.00 0.0 M 0.0 M
12/13/2011 7:00 AM 0.00 0.0 M 0.0 M
12/14/2011 7:00 AM 0.00 0.0 M 0.0 M
12/15/2011 7:00 AM 0.00 0.0 M 0.0 M
12/16/2011 7:00 AM 0.01 0.0 M 0.0 M -RA in the afternoon.
12/17/2011 7:00 AM 0.00 0.0 M 0.0 M
12/18/2011 7:00 AM 0.00 0.0 M 0.0 M
12/19/2011 7:00 AM 0.00 0.0 M 0.0 M
12/20/2011 7:00 AM 0.00 0.0 M 0.0 M
12/21/2011 7:00 AM T 0.0 M 0.0 M Sprinkles around 11 PM and 5 AM.
12/22/2011 7:00 AM 0.12 0.0 M 0.0 M Occasional -RA midmorning to early evening.
12/23/2011 7:30 AM 0.75 0.0 M 0.0 M -RA briefly RA at times overnight.
12/24/2011 7:30 AM 0.01 0.0 M 0.0 M -RA early this morning.
12/25/2011 7:00 AM 0.00 0.0 M 0.0 M
12/26/2011 7:00 AM 0.00 0.0 M 0.0 M
12/27/2011 7:00 AM 0.00 0.0 M 0.0 M
12/28/2011 7:00 AM 0.63 0.0 M 0.0 M -RA during much of he day.
12/29/2011 7:00 AM 0.00 0.0 M 0.0 M
12/30/2011 7:00 AM T 0.0 M 0.0 M Sprinkles around midnight.
12/31/2011 7:00 AM T 0.0 M 0.0 M Brief -SHRA just before 7 AM.
1/1/2012 7:00 AM 0.00 0.0 M 0.0 M
1/2/2012 7:00 AM T 0.0 M 0.0 M -SHRA early evening.
1/3/2012 7:00 AM 0.00 0.0 M 0.0 M
1/4/2012 7:00 AM T T M 0.0 M Flurries early afternoon.
1/5/2012 7:45 AM T T M 0.0 M Flurries late evening.
1/6/2012 7:00 AM 0.00 0.0 M 0.0 M
1/7/2012 7:00 AM 0.00 0.0 M 0.0 M
1/8/2012 7:00 AM 0.00 0.0 M 0.0 M
1/9/2012 7:00 AM 0.00 0.0 M 0.0 M
1/10/2012 7:00 AM 0.17 1.5 M T M -SN in the afternoon and early evening. Snow accumulated on grassy areas and car tops; almost no snow on roads. FZFG at obs time with a temp of 31F. Snow depth at obs time 0.0-0.5 inch.
1/11/2012 7:00 AM 0.00 0.0 M 0.0 M
1/12/2012 7:00 AM 0.71 0.0 M 0.0 M -RA most of the day and overnight.
1/13/2012 7:00 AM 0.18 0.0 M 0.0 M Predawn showers.
1/15/2012 7:00 AM 0.00 0.0 M 0.0 M
1/16/2012 7:00 AM 0.00 0.0 M 0.0 M
1/17/2012 7:00 AM 0.15 0.0 M 0.0 M Intermittent -RA overnight.
1/18/2012 7:00 AM 0.22 0.0 M 0.0 M -RA ended around 10 AM.
1/19/2012 7:00 AM 0.00 0.0 M 0.0 M
1/20/2012 7:00 AM 0.00 0.0 M 0.0 M
1/21/2012 7:00 AM 0.26 0.8 M 0.5 M Note: MD-PG-3 is also NWS co-op site OXNM2. -SN last eve until about 1 AM; -PL 1-3 AM (approximately); then -FZRA. At obs time: -FZRA, air temp 30F.
1/22/2012 7:00 AM 0.03 0.0 M T M -FZRA ended by late morning.
1/23/2012 7:00 AM T T M T M -SN 10-11 AM; -FZDZ 7-8 PM; -FZDZRA estimated around 5-6 AM. All precip very light. No precip at obs time.
1/24/2012 7:00 AM 0.04 0.0 M 0.0 M -SHRA 8-9AM and 1-3PM.
1/25/2012 7:00 AM 0.00 0.0 M 0.0 M
1/26/2012 7:00 AM T 0.0 M 0.0 M -SHRA.
1/27/2012 7:00 AM 0.03 0.0 M 0.0 M -SHRA early this morning.
1/28/2012 7:00 AM 0.31 0.0 M 0.0 M +TSRA 9:00-9:20 AM.
1/29/2012 7:00 AM 0.00 0.0 M 0.0 M
1/30/2012 7:00 AM 0.00 0.0 M 0.0 M
1/31/2012 7:00 AM 0.00 0.0 M 0.0 M
2/1/2012 7:00 AM 0.04 0.0 M 0.0 M -SHRA this morning.
2/2/2012 7:00 AM 0.12 0.0 M 0.0 M -RA ended around 8 AM Feb 1; more -RA today predawn. -RA at obs time.
2/3/2012 7:00 AM 0.01 0.0 M 0.0 M -RA ended by late morning.
2/4/2012 7:00 AM 0.00 0.0 M 0.0 M
2/5/2012 7:00 AM 0.12 0.0 M 0.0 M Occasional -RA.
2/6/2012 7:00 AM T T M 0.0 M Flurries late morning.
2/7/2012 7:00 AM 0.00 0.0 M 0.0 M
2/8/2012 7:00 AM 0.00 0.0 M 0.0 M
2/9/2012 7:00 AM 0.12 T M 0.0 M -RASN at times late afternoon and early evening. This site is alsi NWS co-op site OXNM2.
2/10/2012 7:00 AM 0.00 0.0 M 0.0 M
2/11/2012 7:45 AM 0.18 0.1 M T M -RA changed to -RASN in the predawn. Very light -RASN at obs time. Estimated 0.1 inch of snowfall on grassy areas. No accumulation on roads. This site is also known as NWS co-op site OXNM2.
2/12/2012 5:30 AM 0.02 0.2 M T M -SHSN 3-5 PM and 10PM-1AM. Occasional -RA before afternoon cold front passage. Overnight snowfall estimated due to high winds.
2/13/2012 7:00 AM 0.00 0.0 M 0.0 M
2/14/2012 7:00 AM 0.00 0.0 M 0.0 M
2/15/2012 7:00 AM 0.00 0.0 M 0.0 M
2/16/2012 7:45 AM T 0.0 M 0.0 M Period of light rain around 5 AM.
2/17/2012 7:45 AM 0.11 0.0 M 0.0 M Occasional -RA yesterday into late afternoon. Dense fog at obs time. NWS co-op site OXNM2.
2/18/2012 7:00 AM 0.00 0.0 M 0.0 M
2/19/2012 7:00 AM 0.00 0.0 M 0.0 M
2/20/2012 7:00 AM 0.13 0.1 M T M -RASN late last evening. This site is also NWS co-op site OXNM2.
2/21/2012 7:00 AM 0.00 0.0 M 0.0 M
2/22/2012 7:00 AM 0.00 0.0 M 0.0 M
2/23/2012 7:00 AM T 0.0 M 0.0 M -RA just after midnight.
2/24/2012 7:00 AM 0.01 0.0 M 0.0 M -SHRA around midnight.
2/25/2012 7:00 AM 0.29 0.0 M 0.0 M This is also NWS co-op site OXNM2. -SHRA 9-10 AM. TSRA around 3 PM.
2/26/2012 7:00 AM T T M 0.0 M -SHSN midmorning.
2/27/2012 7:00 AM 0.00 0.0 M 0.0 M
2/28/2012 7:00 AM 0.00 0.0 M 0.0 M
2/29/2012 7:00 AM 0.00 0.0 M 0.0 M
3/1/2012 7:00 AM 1.41 0.0 M 0.0 M This is also NWS co-op site OXNM2. 1.40 inches of rain fell before midnight. Precip times: 0800-1200 -RA with occasional +RA, 1.06; -SHRA 1430-1530, 0.06; -SHRA 1800-0100, 0.29. Calendar month precip 2.55.
3/2/2012 6:00 AM 0.00 0.0 M 0.0 M
3/3/2012 6:00 AM 0.42 0.0 M 0.0 M -SHRA from mid afternoon through early this morning. Brief TSRA 2324-2340. This is NWS co-op site OXNM2.
3/4/2012 7:00 AM 0.04 0.0 M 0.0 M -SHRA midmorning.
3/5/2012 7:00 AM 0.00 0.0 M 0.0 M
3/6/2012 7:00 AM T T M 0.0 M A few flakes around midday.
3/7/2012 7:00 AM 0.00 0.0 M 0.0 M
3/8/2012 7:00 AM 0.00 0.0 M 0.0 M
3/9/2012 8:00 AM 0.03 0.0 M 0.0 M Occasional -RA in the predawn.
3/10/2012 7:00 AM 0.00 0.0 M 0.0 M
3/11/2012 7:00 AM 0.00 0.0 M 0.0 M
3/12/2012 7:00 AM 0.00 0.0 M 0.0 M
3/13/2012 7:00 AM 0.02 0.0 M 0.0 M -SHRA in the predawn.
3/14/2012 7:00 AM 0.00 0.0 M 0.0 M
3/15/2012 7:00 AM 0.00 0.0 M 0.0 M
3/16/2012 7:00 AM 0.00 0.0 M 0.0 M
3/17/2012 7:00 AM 0.02 0.0 M 0.0 M -RA yesterday afternoon.
3/18/2012 7:00 AM T 0.0 M 0.0 M -DZ since about 5 AM.
3/19/2012 7:00 AM T 0.0 M 0.0 M -DZ ended by midmorning.
3/20/2012 7:00 AM T 0.0 M 0.0 M -SHRA last eve and in the predawn today. Weakening thunderstorm N MOV SE at obs time; thunder heard but no rain.
3/21/2012 7:00 AM 0.03 0.0 M 0.0 M -TSRA yesterday morning; -DZ at obs time today.
3/22/2012 7:00 AM T 0.0 M 0.0 M -DZ ended by late morning.
3/23/2012 7:00 AM 0.00 0.0 M 0.0 M
3/24/2012 7:00 AM 0.00 0.0 M 0.0 M -SHRA at DCA 5-6 AM; it just went by to the N of here.
3/25/2012 7:30 AM 0.30 0.0 M 0.0 M -RA from late morning intermittently throguh the predawn todat. -DA at obs time.
3/26/2012 7:30 AM T 0.0 M 0.0 M -RA ended by midmorning. -SHRA around 11 PM.
3/27/2012 7:00 AM 0.00 0.0 M 0.0 M
3/28/2012 7:00 AM 0.00 0.0 M 0.0 M
3/29/2012 7:00 AM 0.01 0.0 M 0.0 M -SHRA yesterday afternoon.
3/30/2012 7:00 AM 0.00 0.0 M 0.0 M
3/31/2012 7:00 AM T 0.0 M 0.0 M -SHRA yesterday afternoon.
4/1/2012 7:00 AM 0.00 0.0 M 0.0 M
4/2/2012 7:00 AM 0.16 0.0 M 0.0 M This is also NWS co-op site OXNM2. -RA overnight.
4/3/2012 7:00 AM 0.00 0.0 M 0.0 M
4/4/2012 7:00 AM 0.00 0.0 M 0.0 M
4/5/2012 7:00 AM 0.00 0.0 M 0.0 M
4/6/2012 7:00 AM 0.00 0.0 M 0.0 M
4/7/2012 7:00 AM 0.00 0.0 M 0.0 M
4/8/2012 6:00 AM 0.00 0.0 M 0.0 M
4/9/2012 7:00 AM 0.00 0.0 M 0.0 M
4/10/2012 7:00 AM T 0.0 M 0.0 M -SHRA last evening.
4/11/2012 7:00 AM 0.00 0.0 M 0.0 M
4/12/2012 7:00 AM T 0.0 M 0.0 M -SHRA early afternoon.
4/13/2012 7:00 AM 0.00 0.0 M 0.0 M
4/14/2012 7:00 AM 0.00 0.0 M 0.0 M
4/15/2012 7:00 AM T 0.0 M 0.0 M -SHRA late last evening.
4/16/2012 7:00 AM 0.00 0.0 M 0.0 M
4/17/2012 7:00 AM 0.00 0.0 M 0.0 M
4/18/2012 7:00 AM 0.00 0.0 M 0.0 M
4/19/2012 7:45 AM 0.06 0.0 M 0.0 M -RA during day and in late evening (10-12PM).
4/20/2012 7:00 AM 0.00 0.0 M 0.0 M
4/21/2012 7:00 AM 0.00 0.0 M 0.0 M
4/22/2012 6:00 AM 0.15 0.0 M 0.0 M -RA last evening.
4/23/2012 7:00 AM 1.44 0.0 M 0.0 M This site is also NWS co-op site OXNM2. Steady rain yesterday through the overnight.
4/24/2012 7:00 AM 0.06 0.0 M 0.0 M Site is also NWS co-op site OXNM2. -RA intermittent until early evening. Reports of -PL in area around 5 PM but none observed here.
4/25/2012 7:00 AM 0.00 0.0 M 0.0 M
4/26/2012 7:45 AM 0.02 0.0 M 0.0 M -SHRA.
4/27/2012 6:00 AM 0.05 0.0 M 0.0 M -RA.
4/28/2012 7:00 AM 0.00 0.0 M 0.0 M
4/29/2012 7:00 AM 0.22 0.0 M 0.0 M Occasional -RA.
4/30/2012 7:00 AM 0.00 0.0 M 0.0 M
5/1/2012 7:00 AM 0.11 0.0 M 0.0 M -SHRA this morning.
5/2/2012 7:00 AM 0.05 0.0 M 0.0 M -SHRA ended around 8 AM yesterday. More -SHRA this morning.
5/3/2012 7:00 AM T 0.0 M 0.0 M -DZ at obs time.
5/4/2012 7:00 AM 0.01 0.0 M 0.0 M -DZ 6 - 8 AM; -SHRA near midnight.
5/5/2012 7:00 AM 0.23 0.0 M 0.0 M Brief +TSRA just before noon.
5/6/2012 7:00 AM 0.01 0.0 M 0.0 M -DZ this morning.
5/7/2012 7:00 AM T 0.0 M 0.0 M Drizzle ended by midmorning.
5/8/2012 7:00 AM 0.00 0.0 M 0.0 M
5/9/2012 7:00 AM 0.23 0.0 M 0.0 M NWS co-op site OXNM2. -SHRA 2-4 PM, 0.02; SHRA overnight, 0.21.
5/10/2012 7:00 AM 0.54 0.0 M 0.0 M -RA from yesterday afternoon until the predawn today. Site is also NWS co-op site OXNM2.
5/11/2012 7:00 AM 0.00 0.0 M 0.0 M
5/12/2012 7:00 AM 0.00 0.0 M 0.0 M
5/13/2012 7:00 AM 0.00 0.0 M 0.0 M
5/14/2012 7:00 AM 0.04 0.0 M 0.0 M -RA this morning.
5/15/2012 7:00 AM 0.95 0.0 M 0.0 M Site is also NWS co-op site OXNM2. +RA 0530-0630 otherwise -RA most of past 24 hours.
5/16/2012 7:00 AM 0.20 0.0 M 0.0 M -RA ended around 0800. Brief SHRA around 1300. -TSRA 2100-2300.
5/17/2012 7:00 AM 0.00 0.0 M 0.0 M
5/18/2012 7:00 AM 0.00 0.0 M 0.0 M
5/19/2012 7:00 AM 0.00 0.0 M 0.0 M
5/20/2012 7:00 AM 0.00 0.0 M 0.0 M
5/21/2012 7:00 AM 0.03 0.0 M 0.0 M -RADZ overnight. -DZ at obs time.
5/22/2012 7:00 AM 0.03 0.0 M 0.0 M -RADZ ended around 2 PM. -RADZ began again around 6 AM today.
5/23/2012 7:00 AM 0.02 0.0 M 0.0 M -RA ended around 8 AM yesterday; -SHRA early this morning.
5/24/2012 7:00 AM 0.13 0.0 M 0.0 M Brief TSRA around 4 PM otherwise -SHRA in the afternoon.
5/25/2012 7:45 AM T 0.0 M 0.0 M -SHRA in the afternoon.
5/26/2012 7:00 AM 0.00 0.0 M 0.0 M
5/27/2012 7:00 AM 0.00 0.0 M 0.0 M
5/28/2012 7:00 AM 0.19 0.0 M 0.0 M Dissipating TSRA last eve. Estimated winds 30-35mph with gust front.
5/29/2012 7:00 AM 0.00 0.0 M 0.0 M
5/30/2012 7:00 AM 0.93 0.0 M 0.0 M +TSRA 9:30-10:00 PM otherwise -SHRA. This is also NWS co-op site OXNM2.
5/31/2012 7:00 AM 0.00 0.0 M 0.0 M
6/1/2012 7:00 AM 0.01 0.0 M 0.0 M -SHRA.
6/2/2012 7:00 AM 2.60 0.0 M 0.0 M This site is also NWS co-op site OXNM2. Numerous training SHRA/TSRA yesterday afternoon and evening but no significant flooding.
6/3/2012 7:00 AM 0.00 0.0 M 0.0 M
6/4/2012 7:00 AM 0.00 0.0 M 0.0 M
6/5/2012 7:00 AM 0.00 0.0 M 0.0 M
6/6/2012 7:00 AM 0.00 0.0 M 0.0 M
6/7/2012 8:00 AM 0.06 0.0 M 0.0 M Brief -TSRA around 7 PM otherwise -SHRA.
6/8/2012 7:00 AM 0.00 0.0 M 0.0 M
6/9/2012 7:00 AM 0.00 0.0 M 0.0 M
6/10/2012 7:00 AM 0.00 0.0 M 0.0 M
6/11/2012 7:00 AM 0.00 0.0 M 0.0 M
6/12/2012 7:00 AM 0.11 0.0 M 0.0 M -SHRA started around 3 AM.
6/13/2012 7:00 AM 0.16 0.0 M 0.0 M Occasional -RA ended around 4 PM then -SHRA just before midnight.
6/14/2012 7:00 AM 0.00 0.0 M 0.0 M
6/15/2012 7:00 AM 0.00 0.0 M 0.0 M
6/16/2012 7:00 AM 0.00 0.0 M M M
6/17/2012 7:00 AM 0.00 0.0 M M M
6/18/2012 7:00 AM 0.00 0.0 M M M
6/19/2012 7:00 AM 0.00 0.0 M M M
6/20/2012 7:00 AM 0.00 0.0 M M M
6/21/2012 7:00 AM 0.00 0.0 M M M
6/22/2012 7:00 AM 0.00 0.0 M M M
6/23/2012 7:00 AM T M M M M Sprinkles. Reported by neighbor while I was away.
6/24/2012 7:00 AM 0.00 0.0 M 0.0 M
6/25/2012 7:00 AM 0.00 0.0 M 0.0 M
6/26/2012 7:00 AM T 0.0 M 0.0 M Sprinkles midday.
6/27/2012 7:00 AM 0.00 0.0 M 0.0 M
6/28/2012 7:00 AM 0.00 0.0 M 0.0 M
6/29/2012 7:00 AM 0.00 0.0 M 0.0 M
6/30/2012 7:00 AM 0.68 0.0 M 0.0 M DELAYED REPORT DUE TO WIDESPREAD POWER/PHONE OUTAGE! Last eve's derecho blew down several large branches and a couple of trees within a 1-mile radius of the site.
7/1/2012 7:00 AM 0.00 0.0 M 0.0 M
7/2/2012 7:00 AM 0.00 0.0 M 0.0 M Few rumbles of thunder NE, 0023-0040EDT.
7/3/2012 7:00 AM 0.00 0.0 M M M
7/4/2012 7:00 AM 0.11 0.0 M 0.0 M Dissipating -TSRA last eve.
7/5/2012 7:00 AM 0.00 0.0 M 0.0 M
7/6/2012 7:00 AM 0.00 0.0 M 0.0 M
7/7/2012 7:00 AM 0.00 0.0 M 0.0 M
7/8/2012 7:00 AM 0.00 0.0 M 0.0 M
7/9/2012 7:00 AM 0.77 0.0 M 0.0 M This is also NWS co-op site OXNM2. -TSRA 1610-1730, 0.01. TSRA 0010-0300 then -RA until obs time.
7/10/2012 7:00 AM 0.02 0.0 M 0.0 M -RA ended by 8 AM.
7/11/2012 7:00 AM 0.00 0.0 M M M
7/12/2012 7:00 AM 0.00 0.0 M M M
7/13/2012 7:00 AM 0.00 0.0 M M M
7/14/2012 7:00 AM T M M M M
7/15/2012 7:00 AM 0.08 M M M M
7/16/2012 7:00 AM 0.04 0.0 M 0.0 M TS 1820-1840. -SHRA 1845-1900 and 0000-0100.
7/17/2012 7:00 AM 0.00 0.0 M 0.0 M
7/18/2012 7:00 AM 0.00 0.0 M 0.0 M
7/19/2012 7:00 AM 0.00 0.0 M 0.0 M TS passed to the N and NE between 5 and 6 PM; no rain. TCU SE at 7 AM today.
7/20/2012 7:45 AM 1.23 0.0 M 0.0 M This is also NWS co-op site OXNM2. +TSRA late last evening, non-severe but with gusty winds. No flooding; it's been rather dry in recent weeks.
7/21/2012 7:30 AM 0.18 0.0 M 0.0 M Occasional -RA afternoon and late eve.
7/22/2012 7:45 AM 0.28 0.0 M 0.0 M Occasional light rain and/or drizzle much of the day.
7/23/2012 7:00 AM 0.00 0.0 M 0.0 M
7/24/2012 7:00 AM 0.00 0.0 M 0.0 M
7/25/2012 6:00 AM T 0.0 M 0.0 M -SHRA midday.
7/26/2012 6:00 AM 0.00 0.0 M 0.0 M
7/27/2012 6:00 AM T 0.0 M 0.0 M -SHRA late evening.
7/28/2012 6:00 AM T 0.0 M 0.0 M -SHRA around 9 PM.
7/29/2012 7:00 AM 0.25 0.0 M 0.0 M This is also NWS co-op site OXNM2. Brief +TSRA with wind gusts estimated to 50 mph between about 8 PM and 8:20 PM. No damage.
7/30/2012 7:00 AM 0.00 0.0 M 0.0 M
7/31/2012 7:00 AM 0.00 0.0 M 0.0 M
8/1/2012 7:00 AM T 0.0 M 0.0 M Thunderstorm to NW midafternoon yesterday but only sprinkles from it.
8/2/2012 7:00 AM 0.01 0.0 M 0.0 M -SHRA 7 - 7:30 PM.
8/3/2012 7:00 AM 0.00 0.0 M 0.0 M
8/4/2012 7:00 AM 0.00 0.0 M 0.0 M
8/5/2012 7:00 AM 0.00 0.0 M 0.0 M
8/6/2012 7:00 AM 0.05 0.0 M 0.0 M Dissipating -TSRA last eve.
8/7/2012 7:00 AM T 0.0 M 0.0 M Sprinkles mid morning.
8/8/2012 7:00 AM 0.00 0.0 M 0.0 M
8/9/2012 7:00 AM 0.00 0.0 M 0.0 M
8/10/2012 7:00 AM 0.04 0.0 M 0.0 M -SHRA this morning.
8/11/2012 7:00 AM 1.11 0.0 M 0.0 M +SHRA 0800-0900, 1.08 inches. -SHRA began around 0300 this morning. Sprinkles at obs time.
8/12/2012 7:00 AM 0.13 0.0 M 0.0 M SHRA last eve.
8/13/2012 7:00 AM 0.00 0.0 M 0.0 M
8/14/2012 7:00 AM 0.01 0.0 M 0.0 M -SHRA this morning.
8/15/2012 7:00 AM 0.35 0.0 M 0.0 M This is also NWX co-op site OXNM2. +SHRA 0705-0720. -SHRA 1700-1900, T.
8/16/2012 7:00 AM 0.00 0.0 M 0.0 M
8/17/2012 7:00 AM 0.00 0.0 M 0.0 M
8/18/2012 7:00 AM 0.19 0.0 M 0.0 M SHRA in the predawn.
8/19/2012 7:00 AM 0.00 0.0 M 0.0 M
8/20/2012 7:00 AM 0.23 0.0 M 0.0 M -RA noon-4PM; SHRA 9PM-midnight.
8/21/2012 7:00 AM 0.02 0.0 M 0.0 M -SHRA in the evening.
8/22/2012 7:00 AM 0.00 0.0 M 0.0 M +SHRA only a few miles N over DC last evening causing a rain delay at the Nationals game, but nothing here.
8/23/2012 7:00 AM 0.00 0.0 M 0.0 M +SHRA to the N of me (at DCA) last evening; +SHRA to the S; but no evidence of any rain here!
8/24/2012 7:00 AM 0.00 0.0 M 0.0 M
8/25/2012 7:00 AM 0.00 0.0 M 0.0 M
8/26/2012 7:00 AM 0.17 0.0 M 0.0 M SHRA last eve; -SHRA predawn today.
8/27/2012 7:00 AM 0.65 0.0 M 0.0 M This is also NWS co-op site OXNM2. +TSRA 4-4:30PM with 0.52 inch. +SHRA 6-6:15PM with 0.14 inch. Few -SHRA predawn today 0.01 inch. Radar estimates over 15 inches on a small part of MD Eastern Shore; their drought is broken.
8/28/2012 7:00 AM T 0.0 M 0.0 M -SHRA this morning.
8/29/2012 7:00 AM T 0.0 M 0.0 M -SHRA ended around 8 AM yesterday.
8/30/2012 7:00 AM 0.00 0.0 M 0.0 M
8/31/2012 7:00 AM 0.00 0.0 M 0.0 M
9/1/2012 7:00 AM 0.00 0.0 M 0.0 M
9/2/2012 6:00 AM 1.27 0.0 M 0.0 M This is also NWS co-op site OXNM2. Sprinkles 9-10 AM. +TSRA with several close lightning strikes late evening; storms not severe.
9/3/2012 7:00 AM 0.07 0.0 M 0.0 M -SHRA 1:00-4:00PM and 9:00-10:00 PM.
9/4/2012 7:00 AM T 0.0 M 0.0 M -SHRA in the predawn today.
9/5/2012 7:00 AM 0.00 0.0 M 0.0 M
9/6/2012 7:00 AM 0.19 0.0 M 0.0 M SHRA 1-2PM 0.12; brief SHRA around 5 PM 0.07.
9/7/2012 7:00 AM 0.25 0.0 M 0.0 M -SHRA during the midday.
9/8/2012 7:00 AM 0.00 0.0 M 0.0 M
9/9/2012 7:00 AM 0.82 0.0 M 0.0 M This is also NWS co-op site OXNM2. +TSRA SQ 4-4:30 PM, then -SHRA until about 7 PM, per neighbor's report. Tree down 1 block W of site. Wires down and trees topped out about 1/2SM E of site.
9/10/2012 7:00 AM 0.00 0.0 M 0.0 M
9/11/2012 7:00 AM 0.00 0.0 M 0.0 M
9/12/2012 7:00 AM 0.00 0.0 M 0.0 M
9/13/2012 7:00 AM 0.00 0.0 M 0.0 M
9/14/2012 7:00 AM 0.00 0.0 M 0.0 M
9/15/2012 7:00 AM 0.00 0.0 M 0.0 M
9/16/2012 7:00 AM 0.00 0.0 M 0.0 M
9/17/2012 7:00 AM 0.00 0.0 M 0.0 M
9/18/2012 7:00 AM 0.26 0.0 M 0.0 M SHRA overnight.
9/19/2012 7:00 AM 1.07 0.0 M 0.0 M This is also NWS co-op site OXNM2. Non-severe +TSRA 3:10-4:00PM, otherwise -SHRA off and on through the midnight hour.
9/20/2012 7:00 AM 0.00 0.0 M 0.0 M
9/21/2012 7:00 AM 0.00 0.0 M 0.0 M
9/22/2012 7:00 AM 0.00 0.0 M 0.0 M
9/23/2012 7:00 AM 0.00 0.0 M 0.0 M
9/24/2012 7:00 AM 0.00 0.0 M 0.0 M
9/25/2012 7:00 AM 0.00 0.0 M 0.0 M
9/26/2012 7:00 AM 0.00 0.0 M 0.0 M
9/27/2012 7:00 AM 0.00 0.0 M 0.0 M Dissipating -TSRA just to the N around 11 PM; 0.05" at DCA but no precip here. Probably no thunder here either.
9/28/2012 8:00 AM 0.58 0.0 M 0.0 M +TSRA late last eve, SHRA predawn today.
9/29/2012 7:00 AM 0.17 0.0 M 0.0 M SHRA in the afternoon and evening.
9/30/2012 7:00 AM 0.00 0.0 M 0.0 M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes



Observation Date Observation Time Notes Largest Stone Size Average Stone Size Smallest Stone Size Stone Consistency Duration Minutes Durration Accuracy Damage Timing More Rain than Hail Hail Started Largest Hail Started Angle of Impact Number of Stones on Pad Distance Between Stones on Pad Depth of Stones on Ground