Weather Reports for the zip_code of 20661 in Maryland
snow
rain
temp
wind
humidity| Jan | Feb | Mar | Apr | May | Jun | |
|---|---|---|---|---|---|---|
| Average High (°F) | 45.7 | 49.3 | 55.9 | 67.5 | 76.1 | 84.2 |
| Average Low (°F) | 29.7 | 32.3 | 38.2 | 48.1 | 58.5 | 67.6 |
| All Time High (°F) | 82.0 | 79.0 | 86.0 | 90.0 | 96.1 | 102.0 |
| All Time Low (°F) | 0.0 | 1.0 | 9.0 | 25.0 | 36.0 | 50.0 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| Average High (°F) | 88.7 | 85.6 | 80.8 | 71.0 | 59.2 | 52.2 |
| Average Low (°F) | 72.6 | 70.4 | 65.3 | 54.8 | 41.9 | 36.0 |
| All Time High (°F) | 104.0 | 99.0 | 98.1 | 100.0 | 84.0 | 77.0 |
| All Time Low (°F) | 55.9 | 55.0 | 44.1 | 30.0 | 19.0 | 15.1 |
| Jan | Feb | Mar | Apr | May | Jun | |
|---|---|---|---|---|---|---|
| Percent of Rainy Days | 0.1 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| Avg. Rainfall (in) on Rainy Day | 0.3 | 0.3 | 0.4 | 0.4 | 0.4 | 0.4 |
| All Time Rainfall (in) on Rainy Day | 1.3 | 1.7 | 2.0 | 2.4 | 2.8 | 2.2 |
| 30 Day Rain Accumulation | 1.7 | 2.1 | 2.2 | 2.4 | 2.8 | 2.7 |
| All Time 30 Day Rain Accumulation | 4.6 | 4.9 | 6.4 | 5.5 | 9.5 | 9.9 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| Percent of Rainy Days | 0.2 | 0.2 | 0.1 | 0.2 | 0.1 | 0.2 |
| Avg. Rainfall (in) on Rainy Day | 0.5 | 0.6 | 0.5 | 0.7 | 0.4 | 0.4 |
| All Time Rainfall (in) on Rainy Day | 3.8 | 8.5 | 5.6 | 11.8 | 4.7 | 2.6 |
| 30 Day Rain Accumulation | 2.8 | 3.8 | 2.3 | 3.7 | 1.9 | 2.2 |
| All Time 30 Day Rain Accumulation | 7.4 | 14.6 | 8.0 | 15.7 | 7.7 | 7.0 |
| Jan | Feb | Mar | Apr | May | Jun | |
|---|---|---|---|---|---|---|
| Percent of Days with Snowfall | 0.0 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 |
| Avg. Snowfall Depth (in) | 1.1 | 1.6 | 1.8 | 0.4 | 0.0 | 0.0 |
| 30 Day Snowfall Total (in) | 1.5 | 3.6 | 1.7 | 0.0 | 0.0 | 0.0 |
| All Time Snowfall Depth (in) | 7.2 | 12.6 | 9.5 | 0.7 | 0.0 | 0.0 |
| All Time 30 Day Snowfall Total (in) | 10.8 | 18.2 | 9.9 | 0.7 | 0.0 | 0.0 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| Percent of Days with Snowfall | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Avg. Snowfall Depth (in) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.6 |
| 30 Day Snowfall Total (in) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.5 |
| All Time Snowfall Depth (in) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.9 |
| All Time 30 Day Snowfall Total (in) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 4.7 |
Instead of using humidity directly we use dew point to measure what people commonly mean when saying it feels humid. Dew point is classified into 4 categories: Dry (under 25°F), Comfortable (25°F to 60°F), Muggy (60°F to 70°F) and Oppressive (70°F or greater). The table below shows the percentage of days with a dew point within a particular class.
| Jan | Feb | Mar | Apr | May | Jun | |
|---|---|---|---|---|---|---|
| Dry | 43.7 | 38.9 | 23.9 | 4.7 | 0.0 | 0.0 |
| Comfortable | 56.3 | 61.1 | 75.8 | 89.4 | 58.6 | 27.5 |
| Muggy | 0.0 | 0.0 | 0.3 | 5.3 | 39.8 | 50.8 |
| Oppressive | 0.0 | 0.0 | 0.0 | 0.6 | 1.6 | 21.7 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| Dry | 0.0 | 0.0 | 0.0 | 0.0 | 12.0 | 24.2 |
| Comfortable | 6.7 | 8.6 | 34.7 | 75.3 | 85.5 | 75.3 |
| Muggy | 40.1 | 48.4 | 48.3 | 22.0 | 2.5 | 0.5 |
| Oppressive | 53.2 | 43.0 | 16.9 | 2.7 | 0.0 | 0.0 |
The table below shows the distribution of average wind speeds in miles per hour for a given month or day. Wind speed may vary throughout a day and we show the average speed. Peak gusts or sustained maximum speeds may be significantly higher.
| Jan | Feb | Mar | Apr | May | Jun | |
|---|---|---|---|---|---|---|
| 10th | 3.4 | 3.4 | 3.5 | 3.5 | 3.5 | 3.4 |
| 25th | 4.9 | 4.9 | 5.8 | 5.8 | 5.6 | 5.2 |
| 50th | 7.3 | 7.3 | 8.1 | 8.4 | 7.6 | 7.2 |
| 75th | 11.0 | 10.5 | 11.5 | 11.8 | 10.3 | 9.8 |
| 90th | 15.8 | 14.8 | 15.6 | 15.5 | 13.4 | 12.5 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| 10th | 3.7 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 |
| 25th | 5.3 | 4.9 | 4.9 | 5.1 | 4.7 | 4.6 |
| 50th | 6.9 | 6.9 | 6.9 | 7.5 | 7.1 | 6.7 |
| 75th | 9.2 | 8.9 | 9.7 | 10.6 | 10.6 | 10.1 |
| 90th | 11.4 | 11.4 | 12.4 | 14.1 | 15.0 | 14.2 |
The table below shows the distribution of wind direction (wind coming out of a particular direction) for a given month or day. Wind direction may vary throughout a day and the computation accounts for all measured changes in direction througout the day or month.
| Jan | Feb | Mar | Apr | May | Jun | |
|---|---|---|---|---|---|---|
| North | 21.2 | 19.5 | 20.2 | 14.2 | 12.3 | 10.5 |
| NorthEast | 7.0 | 8.0 | 8.4 | 7.3 | 9.1 | 6.5 |
| East | 7.1 | 9.0 | 11.2 | 11.1 | 14.4 | 10.2 |
| SouthEast | 8.8 | 10.9 | 14.2 | 16.2 | 16.9 | 12.3 |
| South | 10.1 | 11.1 | 9.3 | 12.7 | 13.2 | 16.9 |
| SouthWest | 10.7 | 11.1 | 9.8 | 11.8 | 13.1 | 18.0 |
| West | 12.9 | 12.0 | 9.0 | 10.5 | 10.0 | 13.4 |
| NorthWest | 22.1 | 18.4 | 18.0 | 16.0 | 10.9 | 12.2 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| North | 9.9 | 11.5 | 15.2 | 17.2 | 21.0 | 18.5 |
| NorthEast | 5.8 | 10.1 | 14.7 | 10.9 | 8.0 | 6.6 |
| East | 8.2 | 10.4 | 13.7 | 9.1 | 6.2 | 7.5 |
| SouthEast | 10.7 | 10.2 | 10.8 | 8.9 | 9.1 | 9.4 |
| South | 18.4 | 18.9 | 14.4 | 13.3 | 11.4 | 11.1 |
| SouthWest | 21.2 | 15.9 | 11.6 | 14.0 | 12.4 | 11.7 |
| West | 14.7 | 12.9 | 9.4 | 12.5 | 12.9 | 14.2 |
| NorthWest | 11.1 | 10.0 | 9.9 | 14.0 | 19.0 | 20.8 |