Best time to visit Pennsylvania Avenue National Historic Site
April and November are the best balance at Pennsylvania Avenue National Historic Site: mild and dry for the park (average highs 58° to 68°F), with crowds from moderate to very busy. April is busiest, with about 16,000 visitors. December is the quietest, with highs near 49°F.
- Quiet
- Moderate
- Busy
- Very busy
- Few or no visits (may be closed)
- Best months
Month by month
- Station
- Natl Arboretum Dc, MD USC00186350
- Lat / lon
- 38.91, -76.97
- Elevation
- 50 ft
- From park center
- 2.9 mi
- Normals
- 1991–2020
- Visits
- 2023–2025
| Field | Jan | Feb | Mar | Aprbest | May | Jun | Jul | Aug | Sep | Oct | Novbest | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High, °F | 45° | 48° | 56° | 68° | 77° | 85° | 90° | 88° | 82° | 70° | 58° | 49° | 68° |
| Low, °F | 28° | 30° | 37° | 46° | 57° | 66° | 71° | 69° | 62° | 49° | 39° | 32° | 49° |
| Precipitation, in | 3.0 | 2.8 | 4.0 | 3.4 | 4.3 | 4.6 | 4.6 | 3.7 | 4.1 | 4.2 | 3.2 | 3.7 | 45.6 |
| Snow, in | 4.7 | 2.3 | 1.4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.3 | 9.7 |
| Daylight, h:mm | 9:43 | 10:41 | 11:50 | 13:10 | 14:16 | 14:53 | 14:38 | 13:41 | 12:24 | 11:07 | 10:00 | 9:27 | |
| Visitors, thousands | 9 | 10 | 15 | 16 | 15 | 13 | 8 | 13 | 9 | 11 | 7 | 6 | 132 |
| Crowds | Busy | Busy | Very busy | Very busy | Very busy | Busy | Moderate | Busy | Busy | Busy | Moderate | Moderate | |
| Weather | Cool | Cool | Mild, wet | Mild | Mild, wet | Hot | Hot | Hot | Hot | Mild, wet | Mild | Cool |
| Month | High °F | Low °F | Precip., in | Snow, in | Daylight | Visitors | Crowds | Weather |
|---|---|---|---|---|---|---|---|---|
| January | 45° | 28° | 3.0 | 4.7 | 9:43 | 8,900 | Busy | Cool |
| February | 48° | 30° | 2.8 | 2.3 | 10:41 | 10,000 | Busy | Cool |
| March | 56° | 37° | 4.0 | 1.4 | 11:50 | 15,000 | Very busy | Mild, wet |
| Aprilbest | 68° | 46° | 3.4 | 0 | 13:10 | 16,000 | Very busy | Mild |
| May | 77° | 57° | 4.3 | 0 | 14:16 | 15,000 | Very busy | Mild, wet |
| June | 85° | 66° | 4.6 | 0 | 14:53 | 13,000 | Busy | Hot |
| July | 90° | 71° | 4.6 | 0 | 14:38 | 8,300 | Moderate | Hot |
| August | 88° | 69° | 3.7 | 0 | 13:41 | 13,000 | Busy | Hot |
| September | 82° | 62° | 4.1 | 0 | 12:24 | 9,200 | Busy | Hot |
| October | 70° | 49° | 4.2 | 0 | 11:07 | 11,000 | Busy | Mild, wet |
| Novemberbest | 58° | 39° | 3.2 | 0 | 10:00 | 6,700 | Moderate | Mild |
| December | 49° | 32° | 3.7 | 1.3 | 9:27 | 6,100 | Moderate | Cool |
| Year | 68° | 49° | 45.6 | 9.7 | 132,000 | |||
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 90°F
- Coldest nights January, average low 28°F
- Source NOAA National Centers for Environmental Information; National Park Service
- Visitors a year about 132,000 (2023–2025 average)
- State Washington, DC
Closures, reservations and alerts: Pennsylvania Avenue National Historic Site on nps.gov
Nearby
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