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 12 3.50 8.50 8 8.50 8 0.00 0 0 8 0 0.0 0 0
Nov 12 3.39 0.60 3 0.60 3 0.00 0 0 3 0 0.0 0 0
Dec 12 3.35 3.56 11 3.56 11 0.00 0 0 11 0 0.1 1 0
Jan 13 3.05 2.40 9 2.40 9 0.00 0 0 9 0 2.0 2 2
Feb 13 2.80 2.31 13 2.31 13 0.00 0 0 13 0 1.9 2 1
March 13 3.82 3.78 8 3.78 8 0.00 0 0 8 0 2.6 2 1
April 13 3.32 3.52 9 3.52 9 0.00 0 0 9 0 0.0 0 0
May 13 4.23 3.19 7 3.19 7 0.00 0 0 7 0 0.0 0 0
June 13 3.91 10.77 15 10.77 15 0.00 0 0 15 0 0.0 0 0
July 13 4.00 1.88 11 1.88 11 0.00 0 0 11 0 0.0 0 0
Aug 13 3.49 2.83 9 2.83 9 0.00 0 0 9 0 0.0 0 0
Sept 13 3.83 1.35 4 1.35 4 0.00 0 0 4 0 0.0 0 0
Water Year Totals: 42.69" 44.69" 107 days 44.69" 107 0.00" 0 days 0 107 days 0 days 6.6" 7 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
10/1/2012
10/2/2012
10/3/2012 0.35
10/4/2012
10/5/2012
10/6/2012
10/7/2012
10/8/2012 0.21
10/9/2012 0.07
10/10/2012
10/11/2012
10/12/2012
10/13/2012
10/14/2012
10/15/2012
10/16/2012
10/17/2012
10/18/2012
10/19/2012 0.37
10/20/2012 0.29
10/21/2012
10/22/2012
10/23/2012
10/24/2012
10/25/2012
10/26/2012
10/27/2012
10/28/2012
10/29/2012 1.40
10/30/2012 5.55
10/31/2012 0.26
11/1/2012
11/2/2012
11/3/2012
11/4/2012
11/5/2012
11/6/2012
11/7/2012 0.01
11/8/2012 0.21
11/9/2012
11/10/2012
11/11/2012
11/12/2012
11/13/2012 0.38
11/14/2012
11/15/2012
11/16/2012
11/17/2012
11/18/2012
11/19/2012
11/20/2012
11/21/2012
11/22/2012
11/23/2012
11/24/2012
11/25/2012
11/26/2012
11/27/2012
11/28/2012
11/29/2012
11/30/2012
12/1/2012
12/2/2012
12/3/2012
12/4/2012
12/5/2012
12/6/2012
12/7/2012 0.03
12/8/2012 0.53
12/9/2012
12/10/2012 0.20
12/11/2012 0.17
12/12/2012
12/13/2012
12/14/2012
12/15/2012
12/16/2012 0.06
12/17/2012 0.03
12/18/2012 0.08
12/19/2012
12/20/2012
12/21/2012 0.96
12/22/2012
12/23/2012
12/24/2012
12/25/2012 0.18
12/26/2012
12/27/2012 1.17
12/28/2012
12/29/2012
12/30/2012 0.15
12/31/2012
Day of YearDaily PrcpMultiday Prcp
1/1/2013
1/2/2013
1/3/2013
1/4/2013
1/5/2013
1/6/2013
1/7/2013
1/8/2013
1/9/2013
1/10/2013
1/11/2013
1/12/2013 0.03
1/13/2013
1/14/2013
1/15/2013 0.39
1/16/2013 0.84
1/17/2013 0.11
1/18/2013
1/19/2013
1/20/2013
1/21/2013
1/22/2013
1/23/2013
1/24/2013 0.07
1/25/2013
1/26/2013 0.04
1/27/2013
1/28/2013 0.07
1/29/2013 0.06
1/30/2013
1/31/2013 0.79
2/1/2013 0.07
2/2/2013
2/3/2013 0.03
2/4/2013
2/5/2013
2/6/2013
2/7/2013
2/8/2013 0.36
2/9/2013 0.11
2/10/2013
2/11/2013 0.32
2/12/2013
2/13/2013
2/14/2013 0.23
2/15/2013
2/16/2013 0.15
2/17/2013 0.03
2/18/2013
2/19/2013
2/20/2013 0.07
2/21/2013
2/22/2013
2/23/2013 0.13
2/24/2013 0.07
2/25/2013
2/26/2013
2/27/2013 0.69
2/28/2013 0.05
3/1/2013
3/2/2013
3/3/2013
3/4/2013
3/5/2013
3/6/2013 0.69
3/7/2013 1.25
3/8/2013
3/9/2013
3/10/2013
3/11/2013
3/12/2013 0.07
3/13/2013 0.69
3/14/2013
3/15/2013
3/16/2013
3/17/2013 0.04
3/18/2013
3/19/2013 0.36
3/20/2013
3/21/2013
3/22/2013
3/23/2013
3/24/2013
3/25/2013 0.41
3/26/2013 0.27
3/27/2013
3/28/2013
3/29/2013
3/30/2013
3/31/2013
Day of YearDaily PrcpMultiday Prcp
4/1/2013 0.01
4/2/2013
4/3/2013
4/4/2013
4/5/2013 0.90
4/6/2013
4/7/2013
4/8/2013
4/9/2013
4/10/2013
4/11/2013
4/12/2013 0.23
4/13/2013 0.83
4/14/2013
4/15/2013
4/16/2013
4/17/2013
4/18/2013
4/19/2013 0.03
4/20/2013 0.84
4/21/2013
4/22/2013
4/23/2013
4/24/2013
4/25/2013 0.02
4/26/2013
4/27/2013
4/28/2013
4/29/2013 0.25
4/30/2013 0.41
5/1/2013 0.19
5/2/2013
5/3/2013
5/4/2013
5/5/2013
5/6/2013
5/7/2013
5/8/2013 0.70
5/9/2013 0.21
5/10/2013
5/11/2013 0.32
5/12/2013 0.51
5/13/2013
5/14/2013
5/15/2013
5/16/2013
5/17/2013
5/18/2013
5/19/2013 0.20
5/20/2013
5/21/2013
5/22/2013
5/23/2013
5/24/2013
5/25/2013
5/26/2013
5/27/2013
5/28/2013
5/29/2013 1.06
5/30/2013
5/31/2013
6/1/2013
6/2/2013
6/3/2013 0.58
6/4/2013 1.02
6/5/2013
6/6/2013
6/7/2013 0.68
6/8/2013 1.74
6/9/2013 0.04
6/10/2013 0.35
6/11/2013 0.76
6/12/2013
6/13/2013
6/14/2013 0.24
6/15/2013
6/16/2013
6/17/2013
6/18/2013 0.04
6/19/2013 1.91
6/20/2013
6/21/2013
6/22/2013
6/23/2013
6/24/2013 0.19
6/25/2013 0.07
6/26/2013
6/27/2013 0.01
6/28/2013 0.28
6/29/2013 2.86
6/30/2013
Day of YearDaily PrcpMultiday Prcp
7/1/2013 0.12
7/2/2013 0.02
7/3/2013 0.33
7/4/2013 0.04
7/5/2013
7/6/2013
7/7/2013
7/8/2013 0.02
7/9/2013
7/10/2013
7/11/2013 0.20
7/12/2013 0.60
7/13/2013 0.19
7/14/2013 0.21
7/15/2013
7/16/2013
7/17/2013
7/18/2013
7/19/2013
7/20/2013
7/21/2013
7/22/2013
7/23/2013 0.11
7/24/2013
7/25/2013
7/26/2013
7/27/2013
7/28/2013
7/29/2013 0.04
7/30/2013
7/31/2013
8/1/2013 0.34
8/2/2013 0.27
8/3/2013
8/4/2013
8/5/2013
8/6/2013
8/7/2013 0.10
8/8/2013
8/9/2013
8/10/2013 0.50
8/11/2013
8/12/2013
8/13/2013
8/14/2013 0.33
8/15/2013
8/16/2013
8/17/2013
8/18/2013 0.19
8/19/2013 0.11
8/20/2013
8/21/2013
8/22/2013 0.48
8/23/2013
8/24/2013
8/25/2013
8/26/2013
8/27/2013
8/28/2013
8/29/2013 0.51
8/30/2013
8/31/2013
9/1/2013
9/2/2013 0.18
9/3/2013
9/4/2013
9/5/2013
9/6/2013
9/7/2013
9/8/2013
9/9/2013
9/10/2013
9/11/2013
9/12/2013
9/13/2013 0.31
9/14/2013
9/15/2013
9/16/2013
9/17/2013 0.03
9/18/2013
9/19/2013
9/20/2013
9/21/2013
9/22/2013 0.83
9/23/2013
9/24/2013
9/25/2013
9/26/2013
9/27/2013
9/28/2013
9/29/2013
9/30/2013



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/3/2012 7:00 AM 0.35 M M M M Ocnl mrng/aftn RW- topped off with a late day RW.
10/8/2012 7:00 AM 0.21 M M M M Mrng R- lull then R- redeveloped later aftn/early eve. 0.56" MTD.
10/9/2012 7:00 AM 0.07 M M M M .T Brief late aftn R-. Overnight R-. 0.63" MTD.
10/19/2012 8:00 AM 0.37 M M M M .01" Sporadic overnight RW-. .36" Early mrng RW+. 1.24" MTD.
10/20/2012 7:00 AM 0.29 M M M M Early eve RW+. .66" Event total. 1.53" MTD.
10/29/2012 7:00 AM 1.40 M M M M R- aftn/eve gradually increasing in intensity overnight to R+ by morning.
10/30/2012 8:00 AM 5.55 M M M M R+ Mon. morning tapering off to mostly R rest of day thru overnight. Still raining. 6.95" Event total thus far. 8.48" MTD. Very little tree damage, probably due to previous pruning by derecho!
10/31/2012 7:00 AM 0.26 M M M M Early mrng R tapering off to R- later mrng/aftn then L- late aftn ending early eve. Storm event total 7.21". 8.74" MTD.
11/7/2012 7:00 AM 0.01 M M M M Early mrng R-.
11/8/2012 7:00 AM 0.21 M M M M .01" Early mrng R-. R- Redevelpoed late day into overnight ending as IP-. 0.22" Event total.
11/13/2012 10:00 AM 0.38 M M M M R- Briefly R overnight into morning.
12/7/2012 9:00 AM 0.03 M M M M Early mrng R-.
12/8/2012 7:00 AM 0.53 M M M M Eve. RW+. L- Overnight.
12/10/2012 7:00 AM 0.20 M M M M Aftn L-. RW/RW- Eve.
12/11/2012 8:00 AM 0.17 M M M M Overnight RW-. 0.93" MTD.
12/16/2012 7:00 AM 0.06 M M M M R- Early overnight briefly R.
12/17/2012 7:00 AM 0.03 M M M M Ocnl RW-/L-. 1.02" MTD.
12/18/2012 7:00 AM 0.08 M M M M RW- Late eve and early overnight. 0.17" Event total. 1.10" MTD.
12/21/2012 7:00 AM 0.96 M M M M .T Late aftn RW-. R-/R Eve thru overnite. 2.06" MTD.
12/25/2012 7:00 AM 0.18 M M M M Aftn R- with ocnl sloppy smooshy splatty mostly melted snowflakes! 2.16" MTD. Merry (almost white!)Christmas!
12/27/2012 7:00 AM 1.17 0.1 M 0.0 M Early mrng IP- w/ ocnl S- mixed in turning to R- later morning. Aftn R-/R. 3.41" MTD.
12/30/2012 7:00 AM 0.15 M M M M IP- Developing mid morning then quickly turning to R- and ending by around noontime. Dec. total 3.56". 2012 total precip. 37.59".
1/12/2013 7:00 AM 0.03 M M M M Early aftn R- tapered off to L- and ended in eve. First measurable precip of 2013!
1/15/2013 7:00 AM 0.39 M M M M .02" Ocnl mrng R-. R- Redeveloped Late day and continued overnight accumulating another 0.37".
1/16/2013 7:00 AM 0.84 M M M M R- Developing late mrng becoming R at times eve and early overnight before tapering off by dawn. 1.23" Event total thus far.
1/17/2013 7:00 AM 0.11 M M M M Ocnl R- thruout the period. 1.34" Event total thus far.
1/24/2013 7:00 AM 0.07 1.5 M 1.5 M S- Overnight. First measurable flakes of winter!
1/26/2013 7:00 AM 0.04 0.5 M 1.0 M S- Late day ending early eve.
1/28/2013 9:00 AM 0.07 M M M M Late night IP- turning to ZR- then R- in morning.
1/29/2013 7:00 AM 0.06 M M M M R- Early mrng. 0.13" Event total. 1.61" MTD.
1/31/2013 7:00 AM 0.79 M M M M R- Developed in eve w/ embedded period of RW+ early overnight ending by dawn. 2.40" Jan. precip total.
2/1/2013 8:00 AM 0.07 1.5 M 1.5 M S- Developed late overnight. Briefly S at dawn before tapering off. 3.6" Snow total winter thus far already beats last winter's anemic 2.8" final total!
2/3/2013 7:00 AM 0.03 0.4 M M M Late day/early eve S-.
2/8/2013 7:30 AM 0.36 M M M M R- Developed after midnight becoming R by mrng.
2/9/2013 7:00 AM 0.11 M M M M .11" Early mrng R/R-. .T Late aftn RW-. 0.47" Event total. 0.57" MTD.
2/11/2013 7:00 AM 0.32 M M M M Overnight R- tapering off early mrng. 0.89" MTD.
2/14/2013 7:00 AM 0.23 0.0 M 0.0 M .T Early aftn RW-. R- Developed later aftn then turned to S- before ending in eve. No accumulation at all. 1.12" LWE MTD.
2/16/2013 7:00 AM 0.15 0.0 M 0.0 M R- Developed late eve and continued overnight tapering off by mrng. NO snow nor sleet observed. 1.27" LWE MTD.
2/17/2013 7:00 AM 0.03 M M M M Aftn R-/S-. No accumulation. 1.30" LWE MTD.
2/20/2013 7:00 AM 0.07 M M M M Ocnl late mrng/aftn R-. 1.37" LWE MTD.
2/23/2013 7:00 AM 0.13 M M M M Briefly IP- early aftn quickly changing to ocnl R-L- thru overnight.
2/24/2013 7:00 AM 0.07 M M M M Mrng R-L- tapering off to ocnl L- into early overnight. 0.20" Event total. 1.57" LWE MTD.
2/27/2013 7:00 AM 0.69 M M M M R- Developed late morning becoming R at times late aftn/ early eve before tapering off to L- late eve into early overnight. 2.27" LWE total for Feb.
2/28/2013 8:00 AM 0.05 M M M M Late overnight into early mrng RW-. 2.31" LWE total for Feb.
3/6/2013 7:30 AM 0.69 0.5 M 0.0 M R-/S- Developed around midnight becoming mostly S- early overnight before turning to R-/R. 0.5" Soggy snow accumulated but has melted down to 0.1".
3/7/2013 7:00 AM 1.25 0.0 M 0.0 M R-/R mrng thru aftn with ocnl S- mixed in tapering off in eve. 1.94" Event total.
3/12/2013 7:00 AM 0.07 M M M M Overnight R-.
3/13/2013 7:00 AM 0.69 M M M M Mrng R-/R climaxed by brief RW+ around noon before ending. 0.76" Event total. 2.70" LWE MTD.
3/17/2013 7:00 AM 0.04 0.0 M M M .T Early aftn RW- sprinkle. .04" Brief late day RW.
3/19/2013 7:00 AM 0.36 0.0 M 0.0 M .T Mrng S- (.02" LWE) never stuck. Ocnl aftn R-L- increased in intensity late day culminating in eve RW. Ocnl overnight RW-. 3.10" LWE MTD.
3/25/2013 7:00 AM 0.41 2.1 M 2.0 M S- Developed late day becoming mixed with R- in eve then becoming all S- w/ ocnl S overnight then S- in mrng. 3.51" LWE MTD.
3/26/2013 7:00 AM 0.27 T M 0.0 M Mrng S- becoming mixed with and changing to R- during aftn. A few stray flakes again before precip tapered off at dusk. 0.68" Event total. 3.78" LWE MTD. Just a few shady patches of snow still left this mrng.
4/1/2013 7:00 AM 0.01 M M M M Early aftn R--. 3.79" LWE total for March.
4/5/2013 7:00 AM 0.90 M M M M Eve R- becoming R early overnight before tapering off by mrng.
4/12/2013 8:30 AM 0.23 M M M M RW- then R-/R Late overnight into mrng.
4/13/2013 7:00 AM 0.83 M M M M Mrng RW+ Tapered off and ended by early aftn. No discernible thunder. 1.06" Event total. 1.96" MTD.
4/19/2013 7:00 AM 0.03 M M M M Early mrng RW-. 1.99" MTD.
4/20/2013 7:00 AM 0.84 M M M M Early eve TRW- with a few strong gusts (E50mph) but only a little CC lightning followed by R-/R into overnight. 2.83" MTD.
4/25/2013 7:00 AM 0.02 M M M M Early overnight RW-. 2.85" MTD.
4/29/2013 8:00 AM 0.25 M M M M .T Ocnl late aftn R--. R- Developed overnight into mrng.
4/30/2013 7:00 AM 0.41 M M M M Steady R- Mrng thru afternoon tapering off to L eve thru overnight into morning. 0.66" Event total. 3.51" April total.
5/1/2013 7:00 AM 0.19 M M M M L/R- Redeveloped late mrng thru aftn tapering off late day. 0.85" Event total. 3.70" April total.
5/8/2013 7:00 AM 0.70 M M M M 0.62" Mrng R-/R. .08" Ocnl aftn RW.
5/9/2013 7:00 AM 0.21 M M M M Ocnl aftn TRW then eve RW-. 0.91" Event total.
5/11/2013 7:00 AM 0.32 M M M M Ocnl TRW-/TRW Late eve thru overnight into morning.
5/12/2013 7:00 AM 0.51 M M M M Ocnl eve TRW then early overnight RW-. 0.83" Event total. 1.74" MTD.
5/19/2013 7:00 AM 0.20 M M M M Ocnl RW-/R-/L-. 1.94" MTD.
5/29/2013 7:00 AM 1.06 M M M M Early eve TRW+. 3.01" May monthly precip total.
6/3/2013 8:00 AM 0.58 M M M M 0.35" Early eve TRW+ followed by .02" ocnl later eve RW- morphing into another .21" R- with embedded RW overnight into morning.
6/4/2013 7:00 AM 1.02 M M M M Early mrng R-/RW. Lull in the precip til late aftn RW+. 1.60" Event total!
6/7/2013 8:00 AM 0.68 M M M M Eve/overnight R-/R.
6/8/2013 7:00 AM 1.74 M M M M R/R- Mrng into eve. 2.42" Event total thus far. 4.02" MTD.
6/9/2013 7:00 AM 0.04 M M M M Late mrng/early aftn RW-. 4.06" MTD.
6/10/2013 8:00 AM 0.35 M M M M TRW Developed overnight tapering off to R- and continuing into early mrng. 4.41" MTD.
6/11/2013 7:00 AM 0.76 M M M M .01" Early mrng R-. .15" Early aftn RW. .60" Eve TRW+. 5.17" MTD.
6/14/2013 8:00 AM 0.24 M M M M .20" Thu. morning TRW+ from remains of Midwest derecho. .T Late aftn TRW-. .04" RW- around dawn. 5.41" MTD.
6/18/2013 7:00 AM 0.04 M M M M Early aftn RW-. Eve TRW's stayed to north. 5.41" MTD.
6/19/2013 7:00 AM 1.91 M M M M A couple of aftn TRW+'s with very little thunder/lightning but torrential downpours tapered off to R- before ending late day. 7.32" MTD.
6/24/2013 7:00 AM 0.19 M M M M .15" Early mrng RW. .04" Late mrng/aftn R-/L-. .T Ocnl aftn RW-. 7.55" MTD.
6/25/2013 7:00 AM 0.07 M M M M Late day TRW-. 7.62" MTD.
6/27/2013 7:00 AM 0.01 M M M M Late aftn RW-. T to N eve. 7.63" MTD.
6/28/2013 7:00 AM 0.28 M M M M .T Sporadic aftn RW-. Eve RW-/RW. 7.91" MTD.
6/29/2013 7:00 AM 2.86 M M M M .90" Late aftn TRW+. 1.70" Early eve TRW+. .26" Later eve RW/RW-. 10.77" MTD.
7/1/2013 7:00 AM 0.12 M M M M 0.11" Ocnl RW- late mrng/aftn. Another .01" w/ overnight RW-. 10.88" June precip total!
7/2/2013 7:00 AM 0.02 M M M M Ocnl mrng/aftn RW-.
7/3/2013 7:00 AM 0.33 M M M M Ocnl aftn RW- with embedded TRW morphing into a steady R-. Few eve RW- sprinkles.
7/4/2013 7:00 AM 0.04 M M M M Mrng RW-. 0.39" MTD.
7/8/2013 7:00 AM 0.02 M M M M .T Eve RW-. .02" Early mrng RW-. 0.41" MTD.
7/11/2013 8:00 AM 0.20 M M M M .03" Wed. mrng RW-. .14" Eve TRW. .03" Early Thu. mrng RW-. 0.61" MTD.
7/12/2013 7:00 AM 0.60 M M M M TRW- Overnight morphing into R-/R.
7/13/2013 7:00 AM 0.19 M M M M .14" Mrng R-. .04" Ocnl aftn RW-. .01" Eve L-. 1.40" MTD.
7/14/2013 7:00 AM 0.21 M M M M Early eve TRW+. 1.61" MTD.
7/23/2013 7:00 AM 0.11 M M M M Early overnight RW. 1.72" MTD.
7/29/2013 7:00 AM 0.04 M M M M Late day RW-. Only .15" in last 2 weeks. 1.76" MTD.
8/1/2013 7:00 AM 0.34 M M M M .T Brief aftn RW-. .34" Overnight RW-/RW. 1.76" July total precip.
8/2/2013 7:00 AM 0.27 M M M M .27" Mrng R-/R. Only .T late day RW- despite threatening clouds. 0.61" Event total.
8/7/2013 7:00 AM 0.10 M M M M Mrng RW- briefly RW. 0.71" MTD.
8/10/2013 7:00 AM 0.50 M M M M Late aftn TRW+. 1.21" MTD.
8/14/2013 7:00 AM 0.33 M M M M Eve TRW. 1.54" MTD.
8/18/2013 7:00 AM 0.19 M M M M R-- Late eve. R- Developed overnight continuing into mrng.
8/19/2013 7:00 AM 0.11 M M M M .10" Mrng R-. Lull in pcpn then another .01" R- mid aftn. 0.30" Event total. 1.84" MTD.
8/22/2013 7:00 AM 0.48 M M M M .34" Eve TRW+. .09" TRW around midnight. .05" Overnight RW-. .48" Event total. 2.32" MTD.
8/29/2013 7:00 AM 0.51 M M M M .02" Ocnl late mrng/aftn RW-. .49" Eve RW. 2.83" MTD.
9/2/2013 7:00 AM 0.18 M M M M Early overnight TRW.
9/13/2013 7:00 AM 0.31 M M M M Late day TRW+. Vivid lightning was best of the year!
9/17/2013 7:00 AM 0.03 M M M M Late mrng/early aftn RW-. Only 0.52" MTD.
9/22/2013 7:00 AM 0.83 M M M M Late day/eve R- with a few embedded bands of RW. 1.35" MTD. Much needed rain!



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