| Station Overview | Station Location | ||
|---|---|---|---|
| Station Number | MD-MG-62 | Latitude | 39.08527 |
| Station Name | Rockville 1.8 W | Longitude | -77.1873 |
| County | Montgomery | Elevation (ft) | 422 |
| 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 13 | 3.41 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0 | 0 | 0 | 0.0 | 0 | 0 |
| Nov 13 | 3.57 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0 | 0 | 0 | 0.0 | 0 | 0 |
| Dec 13 | 3.09 | 1.02 | 1 | 1.02 | 1 | 0.00 | 0 | 0 | 1 | 0 | 2.0 | 1 | 1 |
| Jan 14 | 2.89 | 0.38 | 1 | 0.38 | 1 | 0.00 | 0 | 0 | 1 | 0 | 6.4 | 1 | 1 |
| Feb 14 | 2.72 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0 | 0 | 0 | 0.0 | 0 | 0 |
| March 14 | 3.70 | 0.39 | 1 | 0.39 | 1 | 0.00 | 0 | 0 | 1 | 0 | 4.3 | 1 | 0 |
| April 14 | 3.28 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0 | 0 | 0 | 0.0 | 0 | 0 |
| May 14 | 4.20 | 6.46 | 22 | 6.46 | 22 | 0.00 | 0 | 0 | 12 | 2 | 0.0 | 0 | 0 |
| June 14 | 3.77 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0 | 0 | 0 | 0.0 | 0 | 0 |
| July 14 | 3.87 | 0.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0 | 0 | 0 | 0.0 | 0 | 0 |
| Aug 14 | 3.18 | 2.98 | 1 | 2.98 | 1 | 0.00 | 0 | 0 | 1 | 0 | 0.0 | 0 | 0 |
| Sept 14 | 3.99 | 0.66 | 1 | 0.66 | 1 | 0.00 | 0 | 0 | 1 | 0 | 0.0 | 0 | 0 |
| Water Year Totals: | 41.67" | 11.89" | 27 days | 11.89" | 27 | 0.00" | 0 days | 0 | 17 days | 2 days | 12.7" | 3 days | 2 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 |
|---|---|---|
| 10/1/2013 | ||
| 10/2/2013 | ||
| 10/3/2013 | ||
| 10/4/2013 | ||
| 10/5/2013 | ||
| 10/6/2013 | ||
| 10/7/2013 | ||
| 10/8/2013 | ||
| 10/9/2013 | ||
| 10/10/2013 | ||
| 10/11/2013 | ||
| 10/12/2013 | ||
| 10/13/2013 | ||
| 10/14/2013 | ||
| 10/15/2013 | ||
| 10/16/2013 | ||
| 10/17/2013 | ||
| 10/18/2013 | ||
| 10/19/2013 | ||
| 10/20/2013 | ||
| 10/21/2013 | ||
| 10/22/2013 | ||
| 10/23/2013 | ||
| 10/24/2013 | ||
| 10/25/2013 | ||
| 10/26/2013 | ||
| 10/27/2013 | ||
| 10/28/2013 | ||
| 10/29/2013 | ||
| 10/30/2013 | ||
| 10/31/2013 | ||
| 11/1/2013 | ||
| 11/2/2013 | ||
| 11/3/2013 | ||
| 11/4/2013 | ||
| 11/5/2013 | ||
| 11/6/2013 | ||
| 11/7/2013 | ||
| 11/8/2013 | ||
| 11/9/2013 | ||
| 11/10/2013 | ||
| 11/11/2013 | ||
| 11/12/2013 | ||
| 11/13/2013 | ||
| 11/14/2013 | ||
| 11/15/2013 | ||
| 11/16/2013 | ||
| 11/17/2013 | ||
| 11/18/2013 | ||
| 11/19/2013 | ||
| 11/20/2013 | ||
| 11/21/2013 | ||
| 11/22/2013 | ||
| 11/23/2013 | ||
| 11/24/2013 | ||
| 11/25/2013 | ||
| 11/26/2013 | ||
| 11/27/2013 | ||
| 11/28/2013 | ||
| 11/29/2013 | ||
| 11/30/2013 | ||
| 12/1/2013 | ||
| 12/2/2013 | ||
| 12/3/2013 | ||
| 12/4/2013 | ||
| 12/5/2013 | ||
| 12/6/2013 | ||
| 12/7/2013 | ||
| 12/8/2013 | ||
| 12/9/2013 | 1.02 | |
| 12/10/2013 | ||
| 12/11/2013 | ||
| 12/12/2013 | ||
| 12/13/2013 | ||
| 12/14/2013 | ||
| 12/15/2013 | ||
| 12/16/2013 | ||
| 12/17/2013 | ||
| 12/18/2013 | ||
| 12/19/2013 | ||
| 12/20/2013 | ||
| 12/21/2013 | ||
| 12/22/2013 | ||
| 12/23/2013 | ||
| 12/24/2013 | ||
| 12/25/2013 | ||
| 12/26/2013 | ||
| 12/27/2013 | ||
| 12/28/2013 | ||
| 12/29/2013 | ||
| 12/30/2013 | ||
| 12/31/2013 |
| Day of Year | Daily Prcp | Multiday Prcp |
|---|---|---|
| 1/1/2014 | ||
| 1/2/2014 | ||
| 1/3/2014 | ||
| 1/4/2014 | ||
| 1/5/2014 | ||
| 1/6/2014 | ||
| 1/7/2014 | ||
| 1/8/2014 | ||
| 1/9/2014 | ||
| 1/10/2014 | ||
| 1/11/2014 | ||
| 1/12/2014 | ||
| 1/13/2014 | ||
| 1/14/2014 | ||
| 1/15/2014 | ||
| 1/16/2014 | ||
| 1/17/2014 | ||
| 1/18/2014 | ||
| 1/19/2014 | ||
| 1/20/2014 | ||
| 1/21/2014 | ||
| 1/22/2014 | 0.38 | |
| 1/23/2014 | ||
| 1/24/2014 | ||
| 1/25/2014 | ||
| 1/26/2014 | ||
| 1/27/2014 | ||
| 1/28/2014 | ||
| 1/29/2014 | ||
| 1/30/2014 | ||
| 1/31/2014 | ||
| 2/1/2014 | ||
| 2/2/2014 | ||
| 2/3/2014 | ||
| 2/4/2014 | ||
| 2/5/2014 | ||
| 2/6/2014 | ||
| 2/7/2014 | ||
| 2/8/2014 | ||
| 2/9/2014 | ||
| 2/10/2014 | ||
| 2/11/2014 | ||
| 2/12/2014 | ||
| 2/13/2014 | ||
| 2/14/2014 | ||
| 2/15/2014 | ||
| 2/16/2014 | ||
| 2/17/2014 | ||
| 2/18/2014 | ||
| 2/19/2014 | ||
| 2/20/2014 | ||
| 2/21/2014 | ||
| 2/22/2014 | ||
| 2/23/2014 | ||
| 2/24/2014 | ||
| 2/25/2014 | ||
| 2/26/2014 | ||
| 2/27/2014 | ||
| 2/28/2014 | ||
| 3/1/2014 | ||
| 3/2/2014 | ||
| 3/3/2014 | ||
| 3/4/2014 | ||
| 3/5/2014 | ||
| 3/6/2014 | ||
| 3/7/2014 | ||
| 3/8/2014 | ||
| 3/9/2014 | ||
| 3/10/2014 | ||
| 3/11/2014 | ||
| 3/12/2014 | ||
| 3/13/2014 | ||
| 3/14/2014 | ||
| 3/15/2014 | ||
| 3/16/2014 | ||
| 3/17/2014 | ||
| 3/18/2014 | ||
| 3/19/2014 | ||
| 3/20/2014 | ||
| 3/21/2014 | ||
| 3/22/2014 | ||
| 3/23/2014 | ||
| 3/24/2014 | ||
| 3/25/2014 | ||
| 3/26/2014 | 0.39 | |
| 3/27/2014 | ||
| 3/28/2014 | ||
| 3/29/2014 | ||
| 3/30/2014 | ||
| 3/31/2014 |
| Day of Year | Daily Prcp | Multiday Prcp |
|---|---|---|
| 4/1/2014 | ||
| 4/2/2014 | ||
| 4/3/2014 | ||
| 4/4/2014 | ||
| 4/5/2014 | ||
| 4/6/2014 | ||
| 4/7/2014 | ||
| 4/8/2014 | ||
| 4/9/2014 | ||
| 4/10/2014 | ||
| 4/11/2014 | ||
| 4/12/2014 | ||
| 4/13/2014 | ||
| 4/14/2014 | ||
| 4/15/2014 | ||
| 4/16/2014 | ||
| 4/17/2014 | ||
| 4/18/2014 | ||
| 4/19/2014 | ||
| 4/20/2014 | ||
| 4/21/2014 | ||
| 4/22/2014 | ||
| 4/23/2014 | ||
| 4/24/2014 | ||
| 4/25/2014 | ||
| 4/26/2014 | ||
| 4/27/2014 | ||
| 4/28/2014 | ||
| 4/29/2014 | ||
| 4/30/2014 | ||
| 5/1/2014 | ||
| 5/2/2014 | 0.00 | |
| 5/3/2014 | 0.00 | |
| 5/4/2014 | 0.00 | |
| 5/5/2014 | 0.00 | |
| 5/6/2014 | 0.13 | |
| 5/7/2014 | 0.00 | |
| 5/8/2014 | 0.20 | |
| 5/9/2014 | T | |
| 5/10/2014 | T | |
| 5/11/2014 | 0.18 | |
| 5/12/2014 | 0.00 | |
| 5/13/2014 | 0.03 | |
| 5/14/2014 | 0.22 | |
| 5/15/2014 | 0.03 | |
| 5/16/2014 | 3.58 | |
| 5/17/2014 | 0.08 | |
| 5/18/2014 | 0.00 | |
| 5/19/2014 | 0.00 | |
| 5/20/2014 | ||
| 5/21/2014 | ||
| 5/22/2014 | 0.31 | |
| 5/23/2014 | ||
| 5/24/2014 | ||
| 5/25/2014 | ||
| 5/26/2014 | ||
| 5/27/2014 | ||
| 5/28/2014 | 1.07 | |
| 5/29/2014 | 0.05 | |
| 5/30/2014 | 0.58 | |
| 5/31/2014 | ||
| 6/1/2014 | ||
| 6/2/2014 | ||
| 6/3/2014 | ||
| 6/4/2014 | ||
| 6/5/2014 | ||
| 6/6/2014 | ||
| 6/7/2014 | ||
| 6/8/2014 | ||
| 6/9/2014 | ||
| 6/10/2014 | ||
| 6/11/2014 | ||
| 6/12/2014 | ||
| 6/13/2014 | ||
| 6/14/2014 | ||
| 6/15/2014 | ||
| 6/16/2014 | ||
| 6/17/2014 | ||
| 6/18/2014 | ||
| 6/19/2014 | ||
| 6/20/2014 | ||
| 6/21/2014 | ||
| 6/22/2014 | ||
| 6/23/2014 | ||
| 6/24/2014 | ||
| 6/25/2014 | ||
| 6/26/2014 | ||
| 6/27/2014 | ||
| 6/28/2014 | ||
| 6/29/2014 | ||
| 6/30/2014 |
| Day of Year | Daily Prcp | Multiday Prcp |
|---|---|---|
| 7/1/2014 | ||
| 7/2/2014 | ||
| 7/3/2014 | ||
| 7/4/2014 | ||
| 7/5/2014 | ||
| 7/6/2014 | ||
| 7/7/2014 | ||
| 7/8/2014 | ||
| 7/9/2014 | ||
| 7/10/2014 | ||
| 7/11/2014 | ||
| 7/12/2014 | ||
| 7/13/2014 | ||
| 7/14/2014 | ||
| 7/15/2014 | ||
| 7/16/2014 | ||
| 7/17/2014 | ||
| 7/18/2014 | ||
| 7/19/2014 | ||
| 7/20/2014 | ||
| 7/21/2014 | ||
| 7/22/2014 | ||
| 7/23/2014 | ||
| 7/24/2014 | ||
| 7/25/2014 | ||
| 7/26/2014 | ||
| 7/27/2014 | ||
| 7/28/2014 | ||
| 7/29/2014 | ||
| 7/30/2014 | ||
| 7/31/2014 | ||
| 8/1/2014 | ||
| 8/2/2014 | ||
| 8/3/2014 | ||
| 8/4/2014 | ||
| 8/5/2014 | ||
| 8/6/2014 | ||
| 8/7/2014 | ||
| 8/8/2014 | ||
| 8/9/2014 | ||
| 8/10/2014 | ||
| 8/11/2014 | ||
| 8/12/2014 | ||
| 8/13/2014 | 2.98 | |
| 8/14/2014 | ||
| 8/15/2014 | ||
| 8/16/2014 | ||
| 8/17/2014 | ||
| 8/18/2014 | ||
| 8/19/2014 | ||
| 8/20/2014 | ||
| 8/21/2014 | ||
| 8/22/2014 | ||
| 8/23/2014 | ||
| 8/24/2014 | ||
| 8/25/2014 | ||
| 8/26/2014 | ||
| 8/27/2014 | ||
| 8/28/2014 | ||
| 8/29/2014 | ||
| 8/30/2014 | ||
| 8/31/2014 | ||
| 9/1/2014 | ||
| 9/2/2014 | 0.66 | |
| 9/3/2014 | ||
| 9/4/2014 | ||
| 9/5/2014 | ||
| 9/6/2014 | ||
| 9/7/2014 | ||
| 9/8/2014 | ||
| 9/9/2014 | ||
| 9/10/2014 | ||
| 9/11/2014 | ||
| 9/12/2014 | ||
| 9/13/2014 | ||
| 9/14/2014 | ||
| 9/15/2014 | ||
| 9/16/2014 | ||
| 9/17/2014 | ||
| 9/18/2014 | ||
| 9/19/2014 | ||
| 9/20/2014 | ||
| 9/21/2014 | ||
| 9/22/2014 | ||
| 9/23/2014 | ||
| 9/24/2014 | ||
| 9/25/2014 | ||
| 9/26/2014 | ||
| 9/27/2014 | ||
| 9/28/2014 | ||
| 9/29/2014 | ||
| 9/30/2014 |
| Observation Date | Observation Time | Precipitation | Snowfall | Snowfall SWE | Snow Depth | Snow SWE | Notes |
|---|---|---|---|---|---|---|---|
| 12/9/2013 | 7:00 AM | 1.02 | 2.0 | M | 1.0 | M | See Significant Weather Report From 200PM 12/8/2013. Temperature made it to 32 between midnight (30) and 430A (32.3). Despite above-freezing temperatures ice remains on all surfaces and vegetation at Obs. |
| 1/22/2014 | 7:00 AM | 0.38 | 6.4 | M | 5.0 | M | Liquid Precipitation estimated from apparent snowfall ratio (density), intensity of wind/assumption of gauge under-catch, and neighboring observations. Snowfall also estimated due to drifting and slight ground warmth at onset. Liquid in gauge totaled 0.30", snowfall ranged from ~5.2" to ~7.2". Some blowing and drifting snow towards end of event and overnight before obs, although most drifts were around and beneath automobiles and rooftops. Very little snow stuck to trees. |
| 3/26/2014 | 7:00 AM | 0.39 | 4.3 | M | M | M | -SN, OCNL -SN/SN. Flakes generally fine/wet, except for a period ~1500-1600LT of fluffy dendrites. Sets daily snowfall record, breaking 4.2" (2013). Sets March monthly snow record (since 1960) at 19.5" (old = 15.7", 1999). Moves seasonal snowfall total (53.5") to 3rd-greatest since 1980. |
| 5/2/2014 | 12:00 AM | 0.00 | 0.0 | M | M | M | |
| 5/3/2014 | 12:00 AM | 0.00 | 0.0 | M | M | M | |
| 5/4/2014 | 12:00 AM | 0.00 | 0.0 | M | M | M | |
| 5/5/2014 | 12:00 AM | 0.00 | 0.0 | M | M | M | |
| 5/6/2014 | 7:00 AM | 0.13 | 0.0 | M | 0.0 | M | |
| 5/7/2014 | 12:00 AM | 0.00 | 0.0 | M | M | M | |
| 5/8/2014 | 7:00 AM | 0.20 | 0.0 | M | 0.0 | M | -TSHRA B~1021, with -RA through ~1400 |
| 5/9/2014 | 7:00 AM | T | 0.0 | M | 0.0 | M | |
| 5/10/2014 | 7:00 AM | T | 0.0 | M | 0.0 | M | Sprinkles ~2245-2330 |
| 5/11/2014 | 7:00 AM | 0.18 | 0.0 | M | 0.0 | M | Ocnl sprinkles/-SHRA, briefly SHRA 1340-~1630LT (0.07")...then -SHRA 2140-2200LT (0.11") |
| 5/12/2014 | 12:00 AM | 0.00 | 0.0 | M | M | M | |
| 5/13/2014 | 7:00 AM | 0.03 | 0.0 | M | 0.0 | M | --TSHRA ~1923-1940LT |
| 5/14/2014 | 7:00 AM | 0.22 | 0.0 | M | 0.0 | M | -TSHRA ~2010-2130LT, thunder began ~1930LT |
| 5/15/2014 | 7:00 AM | 0.03 | 0.0 | M | 0.0 | M | Back-door front brings -DZ >1730LT, light fog >2000LT, (0.02" by midnight). Then additional 0.01" pre-dawn on the 15th. |
| 5/16/2014 | 7:00 AM | 3.58 | 0.0 | M | 0.0 | M | 0.11" 1620-1725LT ... additional 0.98" 1725-2359LT ... additional 2.49" 0000-700LT |
| 5/17/2014 | 7:00 AM | 0.08 | 0.0 | M | 0.0 | M | Last of heavy rain Obs-900LT (0.08") ... then sprinkles 900-1000P (T) |
| 5/18/2014 | 12:00 AM | 0.00 | 0.0 | M | M | M | |
| 5/19/2014 | 12:00 AM | 0.00 | 0.0 | M | M | M | |
| 5/22/2014 | 7:00 AM | 0.31 | 0.0 | M | 0.0 | M | Sprinkle ~1730LT ... then --SHRA 2045-2100LT ... surprise TSHRA ~530-600LT ... very light fog at dawn |
| 5/28/2014 | 7:00 AM | 1.07 | 0.0 | M | 0.0 | M | Rather strong TSHRA ~1800-1930LT (1.04"), heaviest 1800-1830LT ... then sprinkles/--SHRA ~2245-2300LT...finally an additional 0.03" pre-dawn on 28th. |
| 5/29/2014 | 7:00 AM | 0.05 | 0.0 | M | 0.0 | M | Back-door front ~2030LT ... then -DZ 2300LT-Obs (T 2300-0059LT) |
| 5/30/2014 | 7:00 AM | 0.58 | 0.0 | M | 0.0 | M | Miserable Day (29th): -DZ Obs-1200LT ... then steady -RA ~1200-1700LT ... finally -DZ 1700LT through pre-dawn on the 30th. 0.55" Obs-0059LT, 0.03" 0059LT-Obs. |
| 8/13/2014 | 7:00 AM | 2.98 | 0.0 | M | 0.0 | M | |
| 9/2/2014 | 7:00 AM | 0.66 | 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 |
|---|