Best time to visit Rock Creek Park
April and November are the best balance at Rock Creek Park: mild and dry for the park (average highs 56° to 68°F), with busy crowds. July is busiest, with about 218,000 visitors. December is the quietest, with highs near 47°F.
- Quiet
- Moderate
- Busy
- Very busy
- Few or no visits (may be closed)
- Best months
Month by month
- Station
- Dalecarlia Rsvr, MD USC00182325
- Lat / lon
- 38.94, -77.11
- Elevation
- 150 ft
- From park center
- 4 mi
- Normals
- 1991–2020
- Visits
- 2023–2025
| Field | Jan | Feb | Mar | Aprbest | May | Jun | Jul | Aug | Sep | Oct | Novbest | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High, °F | 43° | 46° | 55° | 68° | 76° | 84° | 88° | 86° | 79° | 68° | 56° | 47° | 66° |
| Low, °F | 26° | 27° | 34° | 44° | 54° | 63° | 68° | 66° | 59° | 47° | 36° | 30° | 46° |
| Precipitation, in | 3.3 | 3.2 | 4.2 | 3.5 | 4.4 | 4.2 | 5.1 | 4.4 | 4.5 | 4.4 | 3.3 | 3.8 | 48.5 |
| Snow, in | 2.9 | 1.4 | 0.7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.8 | 5.8 |
| Daylight, h:mm | 9:43 | 10:40 | 11:50 | 13:10 | 14:17 | 14:53 | 14:39 | 13:41 | 12:24 | 11:07 | 9:59 | 9:27 | |
| Visitors, thousands | 123 | 114 | 128 | 147 | 164 | 203 | 218 | 212 | 169 | 155 | 128 | 105 | 1,867 |
| Crowds | Busy | Moderate | Busy | Busy | Busy | Very busy | Very busy | Very busy | Busy | Busy | Busy | Moderate | |
| Weather | Cool | Cool | Cool | Mild | Mild, wet | Hot | Hot | Hot | Mild, wet | Mild, wet | Mild | Cool |
| Month | High °F | Low °F | Precip., in | Snow, in | Daylight | Visitors | Crowds | Weather |
|---|---|---|---|---|---|---|---|---|
| January | 43° | 26° | 3.3 | 2.9 | 9:43 | 123,000 | Busy | Cool |
| February | 46° | 27° | 3.2 | 1.4 | 10:40 | 114,000 | Moderate | Cool |
| March | 55° | 34° | 4.2 | 0.7 | 11:50 | 128,000 | Busy | Cool |
| Aprilbest | 68° | 44° | 3.5 | 0 | 13:10 | 147,000 | Busy | Mild |
| May | 76° | 54° | 4.4 | 0 | 14:17 | 164,000 | Busy | Mild, wet |
| June | 84° | 63° | 4.2 | 0 | 14:53 | 203,000 | Very busy | Hot |
| July | 88° | 68° | 5.1 | 0 | 14:39 | 218,000 | Very busy | Hot |
| August | 86° | 66° | 4.4 | 0 | 13:41 | 212,000 | Very busy | Hot |
| September | 79° | 59° | 4.5 | 0 | 12:24 | 169,000 | Busy | Mild, wet |
| October | 68° | 47° | 4.4 | 0 | 11:07 | 155,000 | Busy | Mild, wet |
| Novemberbest | 56° | 36° | 3.3 | 0 | 9:59 | 128,000 | Busy | Mild |
| December | 47° | 30° | 3.8 | 0.8 | 9:27 | 105,000 | Moderate | Cool |
| Year | 66° | 46° | 48.5 | 5.8 | 1,867,000 | |||
Year: average high and low, total precipitation and snowfall, total visitors. T = trace (under 0.05 in). – = not measured at this station. Updated .
- Hottest July, average high 88°F
- Coldest nights January, average low 26°F
- Source NOAA National Centers for Environmental Information; National Park Service
- Visitors a year about 1,867,000 (2023–2025 average)
- State Washington, DC
Closures, reservations and alerts: Rock Creek Park on nps.gov
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