Station Overview Station Location
Station Number MD-CV-1 Latitude 38.741818
Station Name Marlton 6.0 E Longitude -76.680712
County Calvert Elevation (ft) 39



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 14 3.50 3.66 9 3.66 9 0.00 0 0 9 0 0.0 0 0
Nov 14 3.39 3.15 9 3.15 9 0.00 0 0 9 0 0.0 0 0
Dec 14 3.35 3.73 13 3.73 13 0.00 0 0 13 0 0.0 0 0
Jan 15 3.05 3.97 15 3.97 15 0.00 0 0 15 0 3.4 7 4
Feb 15 2.80 1.10 6 1.10 6 0.00 0 0 6 0 8.5 4 1
March 15 3.82 3.92 12 3.92 12 0.00 0 0 12 0 6.0 3 1
April 15 3.32 2.87 7 2.87 7 0.00 0 0 7 0 0.0 0 0
May 15 4.23 2.08 6 2.08 6 0.00 0 0 6 0 0.0 0 0
June 15 3.91 7.98 13 7.98 13 0.00 0 0 13 0 0.0 0 0
July 15 4.00 2.67 8 2.67 8 0.00 0 0 8 0 0.0 0 0
Aug 15 3.49 0.25 3 0.25 3 0.00 0 0 3 0 0.0 0 0
Sept 15 3.83 3.84 6 3.84 6 0.00 0 0 6 0 0.0 0 0
Water Year Totals: 42.69" 39.22" 107 days 39.22" 107 0.00" 0 days 0 107 days 0 days 17.9" 14 days 6 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
10/1/2014
10/2/2014 0.03
10/3/2014
10/4/2014 0.16
10/5/2014
10/6/2014
10/7/2014
10/8/2014 0.30
10/9/2014
10/10/2014
10/11/2014 0.34
10/12/2014 0.14
10/13/2014
10/14/2014 0.18
10/15/2014
10/16/2014 1.93
10/17/2014
10/18/2014
10/19/2014
10/20/2014
10/21/2014
10/22/2014 0.22
10/23/2014 0.36
10/24/2014
10/25/2014
10/26/2014
10/27/2014
10/28/2014
10/29/2014
10/30/2014
10/31/2014
11/1/2014
11/2/2014 0.07
11/3/2014
11/4/2014
11/5/2014
11/6/2014 0.27
11/7/2014 0.41
11/8/2014
11/9/2014
11/10/2014
11/11/2014
11/12/2014
11/13/2014
11/14/2014 0.07
11/15/2014
11/16/2014
11/17/2014 0.10
11/18/2014 0.55
11/19/2014
11/20/2014
11/21/2014
11/22/2014
11/23/2014
11/24/2014 0.42
11/25/2014
11/26/2014 0.56
11/27/2014 0.70
11/28/2014
11/29/2014
11/30/2014
12/1/2014
12/2/2014 0.70
12/3/2014 0.25
12/4/2014
12/5/2014 0.03
12/6/2014 0.07
12/7/2014 0.60
12/8/2014
12/9/2014 0.13
12/10/2014 0.27
12/11/2014
12/12/2014 0.01
12/13/2014
12/14/2014
12/15/2014
12/16/2014
12/17/2014 0.19
12/18/2014
12/19/2014
12/20/2014
12/21/2014
12/22/2014
12/23/2014 0.21
12/24/2014 0.61
12/25/2014 0.44
12/26/2014
12/27/2014
12/28/2014
12/29/2014 0.22
12/30/2014
12/31/2014
Day of YearDaily PrcpMultiday Prcp
1/1/2015
1/2/2015
1/3/2015
1/4/2015 0.33
1/5/2015 0.04
1/6/2015 0.02
1/7/2015 0.09
1/8/2015
1/9/2015
1/10/2015
1/11/2015
1/12/2015 0.32
1/13/2015 0.66
1/14/2015 0.05
1/15/2015 0.01
1/16/2015
1/17/2015
1/18/2015 0.14
1/19/2015 0.77
1/20/2015
1/21/2015
1/22/2015 0.11
1/23/2015
1/24/2015 1.20
1/25/2015
1/26/2015 0.09
1/27/2015 0.11
1/28/2015
1/29/2015
1/30/2015 0.03
1/31/2015
2/1/2015
2/2/2015 0.08
2/3/2015 0.23
2/4/2015
2/5/2015
2/6/2015
2/7/2015
2/8/2015
2/9/2015
2/10/2015
2/11/2015
2/12/2015
2/13/2015
2/14/2015
2/15/2015 0.03
2/16/2015
2/17/2015 0.60
2/18/2015
2/19/2015
2/20/2015
2/21/2015
2/22/2015
2/23/2015
2/24/2015
2/25/2015
2/26/2015 0.08
2/27/2015 0.08
2/28/2015
3/1/2015
3/2/2015 0.57
3/3/2015
3/4/2015 0.19
3/5/2015 0.50
3/6/2015 0.80
3/7/2015
3/8/2015
3/9/2015
3/10/2015
3/11/2015 0.28
3/12/2015
3/13/2015
3/14/2015 0.32
3/15/2015 0.16
3/16/2015
3/17/2015
3/18/2015
3/19/2015
3/20/2015 0.17
3/21/2015 0.29
3/22/2015
3/23/2015
3/24/2015
3/25/2015
3/26/2015
3/27/2015 0.46
3/28/2015 0.17
3/29/2015
3/30/2015 0.01
3/31/2015
Day of YearDaily PrcpMultiday Prcp
4/1/2015 0.03
4/2/2015
4/3/2015
4/4/2015 0.13
4/5/2015
4/6/2015
4/7/2015 0.03
4/8/2015
4/9/2015
4/10/2015
4/11/2015
4/12/2015
4/13/2015
4/14/2015
4/15/2015
4/16/2015
4/17/2015 0.15
4/18/2015
4/19/2015
4/20/2015 1.69
4/21/2015 0.51
4/22/2015
4/23/2015
4/24/2015
4/25/2015
4/26/2015 0.33
4/27/2015
4/28/2015
4/29/2015
4/30/2015
5/1/2015
5/2/2015
5/3/2015
5/4/2015
5/5/2015
5/6/2015 0.04
5/7/2015
5/8/2015
5/9/2015
5/10/2015
5/11/2015
5/12/2015
5/13/2015
5/14/2015
5/15/2015
5/16/2015
5/17/2015 0.36
5/18/2015 0.03
5/19/2015 1.22
5/20/2015
5/21/2015
5/22/2015 0.42
5/23/2015
5/24/2015
5/25/2015
5/26/2015
5/27/2015
5/28/2015
5/29/2015 0.01
5/30/2015
5/31/2015
6/1/2015
6/2/2015 1.10
6/3/2015 0.32
6/4/2015
6/5/2015 0.68
6/6/2015 0.03
6/7/2015 0.02
6/8/2015
6/9/2015 0.01
6/10/2015
6/11/2015
6/12/2015
6/13/2015
6/14/2015
6/15/2015 0.05
6/16/2015
6/17/2015
6/18/2015 0.43
6/19/2015 0.82
6/20/2015
6/21/2015 1.20
6/22/2015
6/23/2015
6/24/2015 1.02
6/25/2015
6/26/2015 1.01
6/27/2015
6/28/2015 1.29
6/29/2015
6/30/2015
Day of YearDaily PrcpMultiday Prcp
7/1/2015 1.02
7/2/2015
7/3/2015
7/4/2015
7/5/2015
7/6/2015
7/7/2015
7/8/2015
7/9/2015 0.82
7/10/2015
7/11/2015 0.20
7/12/2015 0.07
7/13/2015
7/14/2015
7/15/2015
7/16/2015
7/17/2015
7/18/2015
7/19/2015
7/20/2015
7/21/2015
7/22/2015 0.04
7/23/2015
7/24/2015
7/25/2015
7/26/2015
7/27/2015 0.33
7/28/2015 0.13
7/29/2015
7/30/2015
7/31/2015 0.06
8/1/2015
8/2/2015
8/3/2015
8/4/2015
8/5/2015
8/6/2015
8/7/2015
8/8/2015
8/9/2015
8/10/2015
8/11/2015
8/12/2015
8/13/2015
8/14/2015
8/15/2015
8/16/2015
8/17/2015
8/18/2015
8/19/2015 0.19
8/20/2015 0.02
8/21/2015 0.04
8/22/2015
8/23/2015
8/24/2015
8/25/2015
8/26/2015
8/27/2015
8/28/2015
8/29/2015
8/30/2015
8/31/2015
9/1/2015
9/2/2015
9/3/2015 0.16
9/4/2015
9/5/2015
9/6/2015
9/7/2015
9/8/2015
9/9/2015
9/10/2015 0.02
9/11/2015 0.07
9/12/2015
9/13/2015 0.56
9/14/2015
9/15/2015
9/16/2015
9/17/2015
9/18/2015
9/19/2015
9/20/2015
9/21/2015
9/22/2015 0.05
9/23/2015
9/24/2015
9/25/2015
9/26/2015
9/27/2015
9/28/2015
9/29/2015
9/30/2015 2.98



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/2/2014 7:00 AM 0.03 M M M M Mrng RW-.
10/4/2014 7:00 AM 0.16 M M M M Ocnl eve/overnight RW-/RW.
10/8/2014 7:00 AM 0.30 M M M M Ocnl mrng RW-. R-/R Eve. morphing into TRW. 0.50" MTD.
10/11/2014 7:00 AM 0.34 M M M M Ocnl R-.
10/12/2014 7:00 AM 0.14 M M M M R- mrng tapering off to L- aftn. .48" Event total. 0.98" MTD.
10/14/2014 7:00 AM 0.18 M M M M Rw- Mrng/early aftn. 1.16" MTD.
10/16/2014 7:00 AM 1.93 M M M M Aftn RW-/RW+ morphing into R/R- then tapering off to early eve L- before ending. 3.09" MTD.
10/22/2014 7:00 AM 0.22 M M M M Eve R-.
10/23/2014 7:00 AM 0.36 M M M M R- Mrng/aftn tapering off in eve. 0.58" Event total. 3.67" MTD.
11/2/2014 7:00 AM 0.07 M M M M Ocnl mrng/early aftn R-.
11/6/2014 7:00 AM 0.27 M M M M R- Eve into morning. 0.34" MTD.
11/7/2014 7:00 AM 0.41 M M M M Mid aftn RW+. Ocnl early eve Rw-. 0.68" Event total. 0.75" MTD.
11/14/2014 7:00 AM 0.07 M M M M Eve. R-. 0.75" MTD.
11/17/2014 7:00 AM 0.10 M M M M .T Late day R--. Ocnl R- overnight tyapering off to early morning L-.
11/18/2014 7:00 AM 0.55 M M M M R-/R Mrng. R- Aftn tapering off to late day L-. 0.65" Event total. 1.47" MTD.
11/24/2014 7:00 AM 0.42 M M M M R-/R Late eve and early overnight. 1.89" MTD.
11/26/2014 9:00 AM 0.56 M M M M R- Dvlpg overnight becoming R at times early mrng.
11/27/2014 7:00 AM 0.70 T M 0.0 M Mrng/aftn R-/R except for briefly S in mrng. 1.26" Event total. 3.15" MTD.
12/2/2014 8:00 AM 0.70 M M M M R-/R Late day/eve. R- Redeveloping overnight into mrng.
12/3/2014 7:00 AM 0.25 M M M M Mrng R- tapering off to aftn L-. Ocnl eve RW-. 0.95" Event total.
12/5/2014 7:00 AM 0.03 M M M M Late eve R-/IP-.
12/6/2014 7:00 AM 0.07 M M M M Ocnl R- Mrng/aftn.
12/7/2014 7:00 AM 0.60 M M M M R- ocnly R thru early overnight. 0.70" Event total. 1.65" MTD.
12/9/2014 7:00 AM 0.13 M M M M Ocnl eve R--. Ocnl R- overnight into morning.
12/10/2014 7:00 AM 0.27 M M M M R-/L- til midnight. 0.40" Event total. 2.05" MTD. At least T of precip every day of Dec. so far!
12/12/2014 7:00 AM 0.01 T M 0.0 M Aftn SW-.
12/17/2014 7:00 AM 0.19 M M M M Late MRNG R- tapering off to aftn/early eve L-. 2.24" MTD.
12/23/2014 7:00 AM 0.21 M M M M Mrng/aftn R-/L- tapering off to L- eve/overnight. 2.45" MTD.
12/24/2014 7:00 AM 0.61 M M M M Overnight R-/R.
12/25/2014 7:00 AM 0.44 M M M M Mrng R- tapering off to ocnl L- then R- redeveloping after midnite. 1.26" Event total. 3.50" MTD.
12/29/2014 7:00 AM 0.22 M M M M Ocnl R-. 3.72" Dec. total precip. 45.43" 2014 Totaql precip.
1/4/2015 7:00 AM 0.33 M M M M R- Mrng. L- Aftn. R-/L- Eve.
1/5/2015 7:00 AM 0.04 M M M M Early eve RW-. 0.37" Event total.
1/6/2015 7:00 AM 0.02 0.3 M 0.5 M S- Developed late overnight.
1/7/2015 7:00 AM 0.09 1.2 M 1.0 M S- tapering off late mrng. 1.5" Event total w/ 0.11" LWE.
1/12/2015 9:00 AM 0.32 M M M M R-- Late eve. R- Redeveloped early overnight briefly R early mrng. No ice observed with temp barely above freezing.
1/13/2015 7:00 AM 0.66 M M M M R-/R tapering off in eve. 0.98" Event total. 1.46" MTD. Water ponding on frozen ground but no ice observed.
1/14/2015 7:00 AM 0.05 0.3 M 0.5 M Late night S-.
1/15/2015 7:00 AM 0.01 0.1 M 0.0 M Late mrng S-. 0.4" Snow total w/ .06" LWE. 1.52" LWE MTD.
1/18/2015 8:00 AM 0.14 M M M M R- Developed early mrng later intensifying to R.
1/19/2015 7:00 AM 0.77 M M M M Mrng R tapering off to R- before ending in early aftn. 0.91" Event total. 2.43" MTD. Ponding of water on frozen ground.
1/22/2015 7:00 AM 0.11 1.1 M 1.0 M S- Ocnly S early aftn (12-3). RW- around dawn Thu. 2.54" LWE MTD.
1/24/2015 7:00 AM 1.20 T M 0.0 M IP- Developed late day turning to R- becoming R later in eve and early overnight then tapering off to R- and finally L- toward dawn. 3.74" LWE MTD.
1/26/2015 8:00 AM 0.09 T M 0.0 M R- Developing overnight. Few snowflakes mixed in at obs time.
1/27/2015 7:00 AM 0.11 0.3 M M M R-/L- Mrng/aftn with a few flakes/IP- at times. S-/IP- Developed early eve becoming just S- into overnight. 0.20" LWE Event total.
1/30/2015 7:00 AM 0.03 0.1 M 0.0 M Late day IPW-. 3.97" LWE MTD. 3.4" Total Jan. S/IP.
2/2/2015 7:00 AM 0.08 M M M M Ocnl eve/overnight R-. Dry slotted!
2/3/2015 7:00 AM 0.23 M M M M Mrng R-/R. 0.31" Event total.
2/15/2015 7:00 AM 0.03 0.4 M 0.0 M .01" LWE w/ noontime SW- (0.2" snow). .02" (0.2" snow) Early eve RW/SW squall!
2/17/2015 7:00 AM 0.60 5.5 M 5.5 M S- late aftn into overnight ocnly S w/ a spell of SG- around midnight.
2/26/2015 7:30 AM 0.08 1.4 M M M S- Developed late overnight into morning.
2/27/2015 7:00 AM 0.08 1.2 M M M Mrng S-/SW-. 2.6" Snow total w/ .16" LWE. 1.89" LWE Feb. monthly total. 9.6t" Total Feb. snow w/ 13.0" for the winter thus far.
3/2/2015 7:00 AM 0.57 0.1 M M M Early mrng IP quickly turned to ZR- rest of morning into early eve. 0.2" Ice.
3/4/2015 7:00 AM 0.19 0.0 M M M .09" Ocnl R-/ZR- Noon thru early eve. .10" Ocnl R-/L- redeveloped overnight into morning.
3/5/2015 7:30 AM 0.50 M M M M Ocnl R-/L-. Event total 0.69" thus far.
3/6/2015 7:00 AM 0.80 5.8 M 5.5 M Early mrng R- turning to IP- mixing with then changing to S-/S aftn til dusk. 1.49" Event total
3/11/2015 7:00 AM 0.28 M M M M 0.27" Ocnl R- just before noon til just after midnite. 0.01" RW- late night.
3/14/2015 8:00 AM 0.32 M M M M Ocnl R-- late eve. R- Developing around midnight and continuing into mrng.
3/15/2015 7:00 AM 0.16 M M M M Ocnl R- Mrng thru aftn. 0.48" Event total. 2.82" LWE MTD.
3/20/2015 7:30 AM 0.17 T M T M R- Developed overnight mixing with S- at dawn.
3/21/2015 7:00 AM 0.29 0.1 M 0.0 M Mrng R-/S- becoming all rain. 0.46" Event total. 3.28" MTD.
3/27/2015 7:30 AM 0.46 M M M M .03" Thu. mrng RW-. RW- redeveloped later in eve morphing into R- overnight into morning.
3/28/2015 7:00 AM 0.17 M M M M R- Mrng tapering off to L- and ending by mid aftn. 0.63" Event total. 3.91" LWE MTD.
3/30/2015 7:00 AM 0.01 T M 0.0 M Ocnl overnight IPW-/RW-.
4/1/2015 7:00 AM 0.03 M M M M Late day RW-. 3.95" March total LWE. 18.8" Winter snowfall.
4/4/2015 7:00 AM 0.13 M M M M .07" Mrng R-. .06" Ocnl RW- aftn into overnight.
4/7/2015 7:00 AM 0.03 M M M M Late night R-.
4/17/2015 7:00 AM 0.15 M M M M Ocnl overnight R-/RW-. 1.46" MTD.
4/20/2015 7:00 AM 1.69 M M M M R- Developed late day becoming R later in eve and briefly R+ overnight.
4/21/2015 7:00 AM 0.51 M M M M 0.47" Eve TRW+. Another .04" ocnl overnight RW-. 2.20" Event total. 3.66" MTD.
4/26/2015 7:00 AM 0.33 M M M M Late day R- continued until early overnight briefly R. 3.99" MTD.
5/6/2015 7:00 AM 0.04 M M M M RW- Late day/eve. Drought alert!
5/17/2015 7:00 AM 0.36 M M M M 0.31" Eve TRW+. .05" Early overnight RW. Only 0.40" MTD!
5/18/2015 7:00 AM 0.03 M M M M .03" Mrng RW-. .T Ocnl aftn RW-.
5/19/2015 7:00 AM 1.22 M M M M .03" Early aftn TRW-. 1.19" TRW+ Eve/early overnight. 1.65" MTD.
5/22/2015 7:00 AM 0.42 M M M M R- Mrng thru aftn. 2.07" MTD.
5/29/2015 7:00 AM 0.01 M M M M Early eve TRW-. 2.08" MTD.
6/2/2015 7:00 AM 1.10 M M M M Eve TRW- morphed into overnight R-/R.
6/3/2015 7:00 AM 0.32 M M M M R-/L- Aftn into early eve. 1.42" Event total.
6/5/2015 7:00 AM 0.68 M M M M Ocnl RW-/RW. 2.12" Event total thus far.
6/6/2015 7:00 AM 0.03 M M M M Late mrng RW-. 2.15" MTD.
6/7/2015 7:00 AM 0.02 M M M M Early aftn RW-.
6/9/2015 7:00 AM 0.01 M M M M .01" Late eve TRW-. .T Early overnight RW-. 2.18" MTD. Dry slotted!
6/15/2015 7:00 AM 0.05 M M M M Late day TRW- briefly TRW. 2.23" MTD.
6/18/2015 7:00 AM 0.43 M M M M .03" Ocnl aftn/eve RW-. R- Developing early overnight w/ periods of embedded RW.
6/19/2015 7:00 AM 0.82 M M M M Late day TRW+. Strong winds with large tree limbs down in area. .T Ocnl overnight RW-. 3.48" MTD.
6/21/2015 7:00 AM 1.20 M M M M 1.17" Eve TRW+. .03" Ocnl overnight RW-. 4.68" MTD.
6/24/2015 7:00 AM 1.02 M M M M Late day/early eve TRW+. Classic ole' fashioned squall line from the NW w/ anvil Ci, roll cloud, vivid lightning, crackling thunder, torrential rain, and cloud-to-cloud "tentacle" lightning at the end!
6/26/2015 7:00 AM 1.01 M M M M Late eve RW+. 6.71" MTD.
6/28/2015 7:00 AM 1.29 M M M M .50" Mrng R-/R. .T Ocnl aftn RW-. .79" Late day TRW+. .T Brief early overnight RW-. Exactly 8.00" for June so far!
7/1/2015 7:00 AM 1.02 M M M M Early overnight TRW+/RW-.
7/9/2015 7:00 AM 0.82 M M M M Late day TRW+ then RW- briefly RW+ into early eve. 1.82" MTD. The Monsoon continues!
7/11/2015 8:00 AM 0.20 M M M M Late night/early mrng R-/R.
7/12/2015 7:00 AM 0.07 M M M M R- Early mrng. 0.27" Event total. 2.09" MTD.
7/22/2015 7:00 AM 0.04 M M M M Late eve RW. 2.15" MTD.
7/27/2015 7:00 AM 0.33 M M M M Ocnl late night RW/TRW+.
7/28/2015 7:00 AM 0.13 M M M M Ocnl aftn RW-/TRW+. 0.46" Event total. 2.61" MTD.
7/31/2015 7:00 AM 0.06 M M M M Only .06" w/ mid aftn TRW-. 2.67" July precip total.
8/19/2015 7:00 AM 0.19 M M M M Late aftn TRW. 1.32" MTD.
8/20/2015 7:00 AM 0.02 M M M M Late overnight RW-.
8/21/2015 7:00 AM 0.04 M M M M Eve TRW-. 1.38" MTD.
9/3/2015 7:00 AM 0.16 M M M M Late day convective event.
9/10/2015 7:00 AM 0.02 M M M M Eve TRW-. Lots of thunder but little rain! Ominous looking to the S. Only 0.18" so far for Sept.
9/11/2015 7:00 AM 0.07 M M M M Aftn RW-. .09" Event total. Only 0.25" MTD.
9/13/2015 7:00 AM 0.56 M M M M .09" Mrng RW-/R-. .47" Midaftn RW+. Heaviest event since early July!
9/22/2015 7:00 AM 0.05 M M M M Ocnl aftn RW-/R-. 0.86" MTD.
9/30/2015 7:00 AM 2.98 M M M M Ocnl aftn RW-. R+ eve. tapering off to R-. Ocnl RW- overnight. 3.84" MTD. More rain in one evening than in the previous 2 1/2 months combined!



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