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 11 3.50 2.76 12 2.76 12 0.00 0 0 12 0 0.0 0 0
Nov 11 3.39 0.60 2 0.60 2 0.00 0 0 2 0 0.0 0 0
Dec 11 3.35 5.48 5 5.48 5 0.00 0 0 5 0 0.0 0 0
Jan 12 3.05 1.52 9 1.52 9 0.00 0 0 8 1 2.0 2 2
Feb 12 2.80 1.11 8 1.11 8 0.00 0 0 8 0 0.5 2 2
March 12 3.82 2.09 9 2.09 9 0.00 0 0 9 0 0.0 0 0
April 12 3.32 2.16 7 2.16 7 0.00 0 0 7 0 0.0 0 0
May 12 4.23 2.13 11 2.13 11 0.00 0 0 11 0 0.0 0 0
June 12 3.91 1.93 5 1.93 5 0.00 0 0 5 0 0.0 0 0
July 12 4.00 4.56 6 4.56 6 0.00 0 0 6 0 0.0 0 0
Aug 12 3.49 2.79 8 2.79 8 0.00 0 0 8 0 0.0 0 0
Sept 12 3.83 2.54 7 2.54 7 0.00 0 0 7 0 0.0 0 0
Water Year Totals: 42.69" 29.67" 89 days 29.67" 89 0.00" 0 days 0 88 days 1 days 2.5" 4 days 4 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 0.01
10/2/2011 0.19
10/3/2011
10/4/2011
10/5/2011
10/6/2011
10/7/2011
10/8/2011
10/9/2011
10/10/2011
10/11/2011
10/12/2011
10/13/2011 0.38
10/14/2011 0.02
10/15/2011 0.08
10/16/2011
10/17/2011
10/18/2011
10/19/2011 0.08
10/20/2011 0.16
10/21/2011
10/22/2011
10/23/2011
10/24/2011
10/25/2011 0.21
10/26/2011
10/27/2011 0.03
10/28/2011 0.04
10/29/2011 0.83
10/30/2011 0.73
10/31/2011
11/1/2011 0.13
11/2/2011
11/3/2011
11/4/2011
11/5/2011
11/6/2011
11/7/2011
11/8/2011
11/9/2011
11/10/2011
11/11/2011
11/12/2011
11/13/2011
11/14/2011
11/15/2011
11/16/2011
11/17/2011
11/18/2011
11/19/2011
11/20/2011
11/21/2011
11/22/2011
11/23/2011
11/24/2011
11/25/2011
11/26/2011
11/27/2011
11/28/2011
11/29/2011
11/30/2011 0.47
12/1/2011
12/2/2011
12/3/2011
12/4/2011
12/5/2011
12/6/2011
12/7/2011 1.84
12/8/2011 2.24
12/9/2011
12/10/2011
12/11/2011
12/12/2011
12/13/2011
12/14/2011
12/15/2011
12/16/2011
12/17/2011
12/18/2011
12/19/2011
12/20/2011
12/21/2011
12/22/2011 0.15
12/23/2011 0.69
12/24/2011
12/25/2011
12/26/2011
12/27/2011
12/28/2011 0.56
12/29/2011
12/30/2011
12/31/2011
Day of YearDaily PrcpMultiday Prcp
1/1/2012
1/2/2012
1/3/2012
1/4/2012
1/5/2012 T
1/6/2012
1/7/2012
1/8/2012
1/9/2012
1/10/2012 0.21
1/11/2012
1/12/2012 0.62
1/13/2012 0.15
1/14/2012
1/15/2012
1/16/2012
1/17/2012 0.12
1/18/2012 0.16
1/19/2012
1/20/2012
1/21/2012 0.19
1/22/2012
1/23/2012
1/24/2012 0.03
1/25/2012
1/26/2012
1/27/2012
1/28/2012 0.04
1/29/2012
1/30/2012
1/31/2012
2/1/2012
2/2/2012
2/3/2012
2/4/2012
2/5/2012
2/6/2012
2/7/2012
2/8/2012
2/9/2012 0.08
2/10/2012
2/11/2012 0.26
2/12/2012 0.03
2/13/2012
2/14/2012
2/15/2012
2/16/2012
2/17/2012 0.09
2/18/2012
2/19/2012
2/20/2012 0.18
2/21/2012
2/22/2012
2/23/2012 0.04
2/24/2012 0.16
2/25/2012 0.27
2/26/2012
2/27/2012
2/28/2012
2/29/2012
3/1/2012 1.31
3/2/2012
3/3/2012 0.37
3/4/2012
3/5/2012
3/6/2012
3/7/2012
3/8/2012
3/9/2012 0.02
3/10/2012
3/11/2012
3/12/2012
3/13/2012 0.06
3/14/2012
3/15/2012
3/16/2012
3/17/2012 0.06
3/18/2012
3/19/2012
3/20/2012
3/21/2012 0.03
3/22/2012
3/23/2012
3/24/2012
3/25/2012 0.22
3/26/2012
3/27/2012
3/28/2012
3/29/2012 0.01
3/30/2012
3/31/2012 0.01
Day of YearDaily PrcpMultiday Prcp
4/1/2012
4/2/2012 0.11
4/3/2012
4/4/2012
4/5/2012
4/6/2012
4/7/2012
4/8/2012
4/9/2012
4/10/2012
4/11/2012
4/12/2012
4/13/2012
4/14/2012
4/15/2012
4/16/2012
4/17/2012
4/18/2012
4/19/2012 0.09
4/20/2012
4/21/2012
4/22/2012 0.11
4/23/2012 1.47
4/24/2012 0.02
4/25/2012
4/26/2012
4/27/2012 0.20
4/28/2012
4/29/2012 0.16
4/30/2012
5/1/2012 0.09
5/2/2012 0.07
5/3/2012
5/4/2012 0.35
5/5/2012 0.10
5/6/2012
5/7/2012
5/8/2012
5/9/2012 0.22
5/10/2012 0.20
5/11/2012
5/12/2012
5/13/2012
5/14/2012
5/15/2012 0.50
5/16/2012 0.10
5/17/2012
5/18/2012
5/19/2012
5/20/2012
5/21/2012 0.26
5/22/2012
5/23/2012
5/24/2012
5/25/2012
5/26/2012
5/27/2012
5/28/2012 0.08
5/29/2012
5/30/2012 0.16
5/31/2012
6/1/2012
6/2/2012 0.56
6/3/2012
6/4/2012
6/5/2012
6/6/2012
6/7/2012
6/8/2012
6/9/2012
6/10/2012
6/11/2012
6/12/2012 0.14
6/13/2012 0.70
6/14/2012
6/15/2012
6/16/2012
6/17/2012
6/18/2012
6/19/2012
6/20/2012
6/21/2012
6/22/2012
6/23/2012 0.04
6/24/2012
6/25/2012
6/26/2012
6/27/2012
6/28/2012
6/29/2012
6/30/2012 0.49
Day of YearDaily PrcpMultiday Prcp
7/1/2012
7/2/2012
7/3/2012
7/4/2012 0.03
7/5/2012
7/6/2012
7/7/2012
7/8/2012
7/9/2012 0.37
7/10/2012
7/11/2012
7/12/2012
7/13/2012
7/14/2012
7/15/2012 0.22
7/16/2012
7/17/2012
7/18/2012
7/19/2012
7/20/2012 2.55
7/21/2012
7/22/2012 0.22
7/23/2012
7/24/2012
7/25/2012
7/26/2012
7/27/2012
7/28/2012
7/29/2012 1.17
7/30/2012
7/31/2012
8/1/2012 0.03
8/2/2012
8/3/2012 0.52
8/4/2012
8/5/2012
8/6/2012
8/7/2012 0.05
8/8/2012
8/9/2012
8/10/2012 0.56
8/11/2012 0.01
8/12/2012 1.47
8/13/2012
8/14/2012
8/15/2012
8/16/2012
8/17/2012
8/18/2012
8/19/2012
8/20/2012 0.10
8/21/2012 0.05
8/22/2012
8/23/2012
8/24/2012
8/25/2012
8/26/2012
8/27/2012
8/28/2012
8/29/2012
8/30/2012
8/31/2012
9/1/2012
9/2/2012
9/3/2012
9/4/2012
9/5/2012
9/6/2012 0.23
9/7/2012 0.20
9/8/2012
9/9/2012 0.38
9/10/2012
9/11/2012
9/12/2012
9/13/2012
9/14/2012
9/15/2012
9/16/2012
9/17/2012
9/18/2012 0.31
9/19/2012 0.82
9/20/2012
9/21/2012
9/22/2012
9/23/2012
9/24/2012
9/25/2012
9/26/2012
9/27/2012
9/28/2012 0.15
9/29/2012 0.45
9/30/2012



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2011 7:00 AM 0.01 M M M M Late day RW- followed by incredibly long-lasting (>1/2hr!) bright double rainbow! Sept. total 11.64". 22.43" Aug.-Sept.
10/2/2011 7:00 AM 0.19 M M M M .T Ocnl aftn RW-. R- Developed late eve thru overnight.
10/13/2011 7:00 AM 0.38 M M M M Aftn R-. L- Eve thru overnight.
10/14/2011 7:00 AM 0.02 M M M M L- Mrng into early aftn. Late day RW--.
10/15/2011 7:00 AM 0.08 M M M M .02" Mrng RW-. .06" Early aftn RW. 0.48" Event total. 0.67" MTD.
10/19/2011 7:00 AM 0.08 M M M M Overnight R-.
10/20/2011 7:00 AM 0.16 M M M M Mrng R- tapering off to aftn L-. Ocnl eve RW-. 0.24" Event total. 0.91" MTD.
10/25/2011 7:00 AM 0.21 M M M M Brief eve. TRW+. Lone clap of thunder. 1.12" MTD.
10/27/2011 8:00 AM 0.03 M M M M RW- Overnight into early morning.
10/28/2011 7:00 AM 0.04 M M M M R-/R-- Mrng into afternoon. Whopping 0.07" event total. Let it snow!
10/29/2011 8:30 AM 0.83 M M M M R- Developed eve. Ocnl R overnight into early mrng with a brief period of IP- early overnight!
10/30/2011 7:00 AM 0.73 T M 0.0 M Mrng/aftn R-/R mixing with IP- then S-. Briefly S late aftn before ending. Event total 1.56". Oct. monthly total 2.75".
11/1/2011 7:00 AM 0.13 M M M M R- Late eve/overnight. 2.81" Oct. monthly total. precip. w/ .T frozen.
11/30/2011 7:00 AM 0.47 M M M M Mrng/aftn R-/R. Nov. total precip 2.84"...unfortunately all rain!
12/7/2011 7:30 AM 1.84 M M M M .46" R-/R Tue. mrng/aftn tapering off early eve. 1.38" R-/R redeveloped overnight becoming R+ by morning.
12/8/2011 7:00 AM 2.24 0.0 M 0.0 M R-/R Mrng thru eve. w/ periods of R+ mrng and eve. 4.08" Event total!
12/22/2011 7:00 AM 0.15 M M M M Mrng/aftn R- with some L- mid/late aftn. 4.23" MTD.
12/23/2011 7:00 AM 0.69 M M M M 0.64" Eve RW+. .05" Ocnl overnight RW-. 4.92" MTD...none frozen!
12/28/2011 7:00 AM 0.56 M M M M R- Mrng becoming R at times in aqftn. RW+ late aftn with frontal passage. 5.48" Dec. monthly precip. total. 55.45" Annual precip. total.
1/5/2012 7:00 AM T 0.0 M 0.0 M Eve SW- produced dusting of snow!
1/10/2012 7:00 AM 0.21 1.4 M 1.0 M SG- Developed late morning turning to S- and becoming S at times in aftn then briefly ending as R-/L- at dusk.
1/12/2012 7:00 AM 0.62 M M M M Ocnl aftn R-/L- intensified to a steady R-/R eve before tapering off by midnight. Ocnl RW-/RW Overnight. 0.83" MTD.
1/13/2012 7:00 AM 0.15 M M M M RW+/RW- Overnight with cold frontal passage. Briefly intense summer-like shower! 0.98" MTD.
1/17/2012 7:00 AM 0.12 M M M M .04" Eve R-. Another .08" R- overnight.
1/18/2012 7:00 AM 0.16 M M M M Mrng R-. .T Early aftn RW-. 0.28" Event total. 1.26" MTD.
1/21/2012 7:00 AM 0.19 0.6 M 0.5 M S- Developed late eve mixing with then turning to IP-/IP then later ZR- overnight.
1/24/2012 7:00 AM 0.03 M M M M Ocnl early mrng ZL-. .03" Aftn RW-. Previous rain event measured 0.35". 1.64" MTD.
1/28/2012 7:00 AM 0.04 M M M M Ocnl mrng RW-. Brief RW Early aftn. 1.68" MTD.
2/9/2012 7:00 AM 0.08 M M M M Ocnl R- aftn/eve. 0.48" MTD.
2/11/2012 8:00 AM 0.26 0.2 M 0.2 M R- Overnight turned to S- in morning! 0.74" LWE MTD. Snow only on grass, car tops, etc. per usual for this "winter".
2/12/2012 7:00 AM 0.03 0.3 M 0.3 M .T SW- with late aftn arctic front. 0.3" S- Late eve/early overnight with some wind blown drifting made it look like real Winter! 0.77" LWE MTD.
2/17/2012 7:00 AM 0.09 M M M M R- Mrng/aftn. 0.86" LWE MTD. Dense fog overnight.
2/20/2012 7:00 AM 0.18 M M M M R- developed early eve then later mixed with and finally turned to S-. Briefly S before ending by midnight. 1.05" LWE MTD. Snow rapidly melted after the sun came up.
2/23/2012 7:00 AM 0.04 M M M M Brief RW late eve with lingering RW-- early overnight. 1.08" LWE MTD.
2/24/2012 7:00 AM 0.16 M M M M RW/RW- Late eve into overnight. Didn't hear any thunder. 1.24" LWE MTD.
2/25/2012 7:00 AM 0.27 M M M M Mid aftn TRW+. Brief heavy rain but only a few thunderclaps, little wind, and no hail nor tornadoes despite watches/warnings! 1.51" LWE MTD.
3/1/2012 7:00 AM 1.31 M M M M 0.96" Mrng R+. After a lull R-/R redeveloped mid aftn into eve. 2.82" LWE Feb. precip total.
3/3/2012 7:00 AM 0.37 M M M M 0.25" R- Mid/late aftn w/ embedded RW+. Another 0.12" ocnl RW-/TRW- overnight.
3/9/2012 7:00 AM 0.02 M M M M Ocnl overnight RW-. 0.39" MTD.
3/13/2012 7:00 AM 0.06 M M M M Ocnl overnight RW-. 0.45" MTD.
3/17/2012 7:00 AM 0.06 M M M M Aftn R-. Only 0.51" MTD.
3/21/2012 7:00 AM 0.03 M M M M TRW- Early morning. Only 0.54" MTD.
3/25/2012 7:00 AM 0.22 M M M M 0.17" Ocnl R- aftn tapering off to L- eve. .05" Brief RW overnight. Only 0.76" MTD. Way less precip than originally fcst! Drought Alert!!!
3/29/2012 7:00 AM 0.01 M M M M Late aftn RW-. Only 0.77" precip MTD.
3/31/2012 7:00 AM 0.01 M M M M R- Spell in aftn. Brief RW- overnight. Paltry 0.78" March total precip.!
4/2/2012 7:00 AM 0.11 M M M M Late day RW-. R- Late eve into overnight.
4/19/2012 7:00 AM 0.09 M M M M .07" Late mrng/aftn R-. Another .02" w/ brief spell of R- early overnight. First measurable rain in 16 days. Only 0.20" MTD and 0.98" since 01 March! Drought Alert!
4/22/2012 8:00 AM 0.11 M M M M .T Eve RW-. R- Developed late overnight into mrng.
4/23/2012 7:00 AM 1.47 M M M M R-/R Mrng into late eve tapered off to L- overnight. Event total 1.58". 1.78" MTD.
4/24/2012 7:00 AM 0.02 M M M M Ocnl aftn into early eve RW-. 1.60" Event total. 1.80" MTD.
4/27/2012 7:00 AM 0.20 M M M M Mrng R-. 2.00" MTD.
4/29/2012 7:00 AM 0.16 M M M M Ocnl RW-/R- Late day into overnight. 2.16" April precip total.
5/1/2012 8:00 AM 0.09 M M M M R- Late overnight into early morning.
5/2/2012 7:00 AM 0.07 M M M M Brief RW- around dawn.
5/4/2012 7:00 AM 0.35 M M M M TRW+ around midnight! 0.51" MTD.
5/5/2012 7:00 AM 0.10 M M M M 0.10" Early aftn TRW. .T Late day RW-. 0.61" MTD.
5/9/2012 7:00 AM 0.22 M M M M .T Aftn R--. R- Developed late eve into overnight. Not a whole lot, but a good soaking rain at least! 0.83" MTD.
5/10/2012 7:00 AM 0.20 M M M M R- Eve into early overnight. 0.42" Event total. 1.03" MTD.
5/15/2012 8:00 AM 0.50 M M M M .07" Mon. mrng R-. .T Ocnl aftn RW-. .03" RW- around midnight. .40" R-/R late overnight into morning. 1.53" MTD. Disappointing total considering all the heavy rain hype but every drop helps!
5/16/2012 7:00 AM 0.10 M M M M .T Aftn RW-. TRW-/TRW Eve. Saw much heavier report just to my south; apparently there was a very tight rainfall gradient! Only 0.60" for event. 1.63" MTD.
5/21/2012 8:00 AM 0.26 M M M M Ocnl RW- late eve into mrng. 1.89" MTD.
5/28/2012 7:00 AM 0.08 M M M M Eve TRW. 1.97" MTD.
5/30/2012 8:00 AM 0.16 M M M M Eve TRW- morphing into R- overnight. .01" Early mrng RW-. 2.13" MTD.
6/2/2012 7:00 AM 0.56 M M M M Ocnl late aftn/eve TRW+/RW.
6/12/2012 7:00 AM 0.14 M M M M Overnight RW-.
6/13/2012 7:00 AM 0.70 M M M M Ocnl late mrng/aftn RW-/RW briefly RW+. Event total 0.84". 1.49" MTD.
6/23/2012 7:00 AM 0.04 M M M M Late day RW-. Yet another pathetic FROPA! A piddling 1.53" MTD.
6/30/2012 7:00 AM 0.49 M M M M TRW+ Late eve into overnight. Winds estimated @60mph+. Just like a good old fashioned squall line!
7/4/2012 7:00 AM 0.03 M M M M Eve RW-
7/9/2012 7:00 AM 0.37 M M M M .T Late day TRW-. .24" Overnight TRW+. .13" Early mrng R-.
7/15/2012 7:00 AM 0.22 M M M M Aftn/late day RW-/TRW+. Only 0.62" MTD and 12.21" YTD!
7/20/2012 7:00 AM 2.55 M M M M Late eve/early overnight TRW+/RW+. 3.17" MTD. Heaviest rain event since early Dec.!
7/22/2012 7:00 AM 0.22 M M M M Brief mrng RW. Otherwise ocnl R-/L- thru eve then L- overnight. 2.85" Event total. 3.47" MTD.
7/29/2012 7:00 AM 1.17 M M M M Late day TRW+A with some gusty winds. 4.64" MTD.
8/1/2012 7:00 AM 0.03 M M M M Late overnight RW-.
8/3/2012 7:00 AM 0.52 M M M M Later aftn TRW+.
8/7/2012 7:00 AM 0.05 M M M M Mrng RW-.
8/10/2012 9:00 AM 0.56 M M M M Early mrng R. 1.15" MTD.
8/11/2012 7:00 AM 0.01 M M M M RW- around dawn.
8/12/2012 7:00 AM 1.47 M M M M Persistent late day TRW+! 2.62" MTD.
8/20/2012 7:00 AM 0.10 M M M M .03" Aftn R-. .07" Early eve RW-.
8/21/2012 7:00 AM 0.05 M M M M Eve. RW-. 2.77" MTD.
9/6/2012 7:00 AM 0.23 M M M M Mid aftn TRW+
9/7/2012 7:00 AM 0.20 M M M M Mrng R- tapering off in early aftn. 1.36" MTD.
9/9/2012 7:00 AM 0.38 M M M M Late aftn RW+ followed by R-/R into eve. 1.74" MTD.
9/18/2012 7:00 AM 0.31 M M M M Late eve/ early overnight R- briefly R. 2.05" MTD.
9/19/2012 7:00 AM 0.82 M M M M .T RW- Early aftn. RW+ Later aftn tapering off to R- and then ending by eve. 1.13" Event total. 2.87" MTD.
9/28/2012 7:00 AM 0.15 M M M M Overnight RW-/TRW- briefly RW. 3.02" MTD.
9/29/2012 7:00 AM 0.45 M M M M .T Late aftn RW-. .45" Eve. R- with embedded RW. .60" Event total. 3.47" MTD.



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