Updated October 2026
George Washington Birthplace National Monument Weather by Month
George Washington Birthplace National Monument is warmest in July, when the nearest NOAA climate station averages a high of 88°F and a low of 68°F, and coldest in January, with an average high of 47°F and an average low of 29°F. August is the wettest month, with about 5 inches of precipitation. Snowfall is heaviest in January, at about 4.4 inches.
These figures are NOAA's 1991–2020 climate normals, the 30-year average for each calendar month, from the nearest long-record weather station, 16.2 miles from the park's reference point. A single station cannot describe a whole park: temperatures elsewhere in George Washington Birthplace National Monument can differ from these, particularly with elevation.
Warmest month
Jul
88°F avg high
Coldest month
Jan
29°F avg low
Wettest month
Aug
5.0 in avg
Snowiest month
Jan
4.4 in avg
Longest days
Jun
14.6 h of daylight
Average weather at George Washington Birthplace by month
| Month | Avg high | Avg low | Precipitation | Snowfall | Daylight |
|---|---|---|---|---|---|
| January | 47°F | 29°F | 3.0 in | 4.4 in | 9.6 h |
| February | 50°F | 30°F | 2.6 in | 3.3 in | 10.6 h |
| March | 59°F | 37°F | 3.7 in | 1.4 in | 11.7 h |
| April | 70°F | 46°F | 3.2 in | 0.1 in | 13.0 h |
| May | 77°F | 55°F | 3.9 in | 0.0 in | 14.1 h |
| June | 84°F | 64°F | 4.4 in | 0.0 in | 14.6 h |
| July | 88°F | 68°F | 4.7 in | 0.0 in | 14.4 h |
| August | 86°F | 66°F | 5.0 in | 0.0 in | 13.5 h |
| September | 80°F | 60°F | 4.2 in | 0.0 in | 12.2 h |
| October | 70°F | 49°F | 4.0 in | 0.0 in | 11.0 h |
| November | 60°F | 39°F | 3.3 in | 0.1 in | 9.9 h |
| December | 50°F | 32°F | 3.3 in | 2.2 in | 9.4 h |
| Year total | 45.3 in | 11.5 in |
NOAA 1991–2020 climate normals from station USC00448894, 16.2 miles from the park's reference point. Daylight is the monthly average, computed from the park's latitude. Each month links to how crowded George Washington Birthplace is at that time of year.
George Washington Birthplace weather by season
Winter: December to February
Average highs bottom out at 47°F in January, between 50°F in December and 50°F in February, with average lows between 29°F and 32°F. The average low is at or below freezing in all three months. Together the three months average 8.9 inches of precipitation, about 20% of the yearly total and less than in any other season. Snowfall averages about 9.9 inches for the season. Daylight is at its shortest, about 9.4 hours in December.
Spring: March to May
Average highs climb from 59°F in March to 77°F in May, with average lows between 37°F and 55°F. Together the three months average 10.8 inches of precipitation, about 24% of the yearly total. Snowfall averages about 1.5 inches for the season, most of it in March. Daylight lengthens from about 11.7 hours in March to 14.1 in May.
Summer: June to August
Average highs peak at 88°F in July, between 84°F in June and 86°F in August, with average lows between 64°F and 68°F. Together the three months average 14.1 inches of precipitation, about 31% of the yearly total and more than in any other season. Daylight is at its longest, about 14.6 hours in June.
Fall: September to November
Average highs fall from 80°F in September to 60°F in November, with average lows between 39°F and 60°F. Together the three months average 11.5 inches of precipitation, about 25% of the yearly total. Snowfall averages about 0.1 inches for the season. Daylight shortens from about 12.2 hours in September to 9.9 in November.
What the National Park Service says about the weather
George Washington Birthplace can be very warm and humid in the summer months while cold and dry in the winter. Spring and fall are the best seasons to visit.
Weather description courtesy of the National Park Service — official park site.
Today's forecast for George Washington Birthplace
Averages describe a typical month, not this week. For current conditions and the seven-day outlook, the National Weather Service issues a forecast for the park's reference point at 38.19°N, 76.92°W. It covers that one spot, so other elevations in the park can differ from it, as they do from the averages above.
National Weather Service forecast for George Washington Birthplace National Monument →
Weather and crowds together
July is both the warmest month and the busiest, with about 2.3× the visitors of the park's average month. January is the quietest. To see those crowds set against the weather for all twelve months, read the best time to visit George Washington Birthplace National Monument. For hotels, cabins and rentals close to the park, see where to stay near George Washington Birthplace.
Where to stay near George Washington Birthplace
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Frequently Asked Questions
July is the warmest month at George Washington Birthplace National Monument, with an average high of 88°F and an average low of 68°F. That is the 1991–2020 average at the nearest long-record NOAA station, 16.2 miles from the park's reference point. Temperatures inside the park can differ, particularly with elevation.
January is the coldest month at George Washington Birthplace National Monument, with an average low of 29°F and an average high of 47°F, based on NOAA 1991–2020 climate normals.
August is the wettest month, with about 5 inches of precipitation. February is the driest, at about 2.6 inches. The station records about 45.3 inches of precipitation in an average year.
Yes. The nearest long-record NOAA station, 16.2 miles from the park's reference point, averages about 12 inches of snow a year. January is the snowiest month, at about 4.4 inches. The station averages at least a tenth of an inch of snow in 6 of the 12 months.
Weather at nearby parks
24 mi away · warmest in July (88°F)
30 mi away · warmest in July (89°F)
35 mi away · warmest in July (88°F)
36 mi away · warmest in July (88°F)
37 mi away · warmest in July (88°F)
46 mi away · warmest in July (90°F)
Keep exploring
Sources: NOAA NCEI U.S. Climate Normals 1991–2020 (station USC00448894), daylight computed from latitude, weather description from the National Park Service, crowd levels from National Park Service Visitor Use Statistics (1979–2025). Updated 2026-10-11. Lodging results are provided by Stay22; WhenToVisitParks may earn a commission from bookings, at no extra cost to you.