Updated October 2026
Fort Stanwix National Monument Weather by Month
Fort Stanwix National Monument is warmest in July, when the nearest NOAA climate station averages a high of 81°F and a low of 60°F, and coldest in January, with an average high of 30°F and an average low of 13°F. October is the wettest month, with about 4.7 inches of precipitation.
These figures are NOAA's 1991–2020 climate normals, the 30-year average for each calendar month, from the nearest long-record weather station, 3.2 miles from the park's reference point. A single station cannot describe a whole park: temperatures elsewhere in Fort Stanwix National Monument can differ from these, particularly with elevation.
Warmest month
Jul
81°F avg high
Coldest month
Jan
13°F avg low
Wettest month
Oct
4.7 in avg
Longest days
Jun
15.2 h of daylight
Average weather at Fort Stanwix by month
| Month | Avg high | Avg low | Precipitation | Daylight |
|---|---|---|---|---|
| January | 30°F | 13°F | 2.5 in | 9.1 h |
| February | 32°F | 13°F | 2.4 in | 10.3 h |
| March | 41°F | 23°F | 3.4 in | 11.6 h |
| April | 55°F | 34°F | 3.7 in | 13.2 h |
| May | 69°F | 45°F | 4.5 in | 14.5 h |
| June | 76°F | 55°F | 4.2 in | 15.2 h |
| July | 81°F | 60°F | 4.3 in | 14.9 h |
| August | 79°F | 58°F | 3.6 in | 13.8 h |
| September | 72°F | 51°F | 4.0 in | 12.3 h |
| October | 59°F | 41°F | 4.7 in | 10.8 h |
| November | 47°F | 31°F | 3.7 in | 9.5 h |
| December | 36°F | 21°F | 3.0 in | 8.8 h |
| Year total | 44.0 in |
NOAA 1991–2020 climate normals from station USW00064775, 3.2 miles from the park's reference point. Daylight is the monthly average, computed from the park's latitude. Each month links to how crowded Fort Stanwix is at that time of year.
Fort Stanwix weather by season
Winter: December to February
Average highs bottom out at 30°F in January, between 36°F in December and 32°F in February, with average lows between 13°F and 21°F. The average low is at or below freezing in all three months. Together the three months average 7.9 inches of precipitation, about 18% of the yearly total and less than in any other season. Daylight is at its shortest, about 8.8 hours in December.
Spring: March to May
Average highs climb from 41°F in March to 69°F in May, with average lows between 23°F and 45°F. The average low is at or below freezing in March. Together the three months average 11.6 inches of precipitation, about 26% of the yearly total. Daylight lengthens from about 11.6 hours in March to 14.5 in May.
Summer: June to August
Average highs peak at 81°F in July, between 76°F in June and 79°F in August, with average lows between 55°F and 60°F. Together the three months average 12.1 inches of precipitation, about 27% of the yearly total. Daylight is at its longest, about 15.2 hours in June.
Fall: September to November
Average highs fall from 72°F in September to 47°F in November, with average lows between 31°F and 51°F. The average low is at or below freezing in November. Together the three months average 12.4 inches of precipitation, about 28% of the yearly total and more than in any other season. Daylight shortens from about 12.3 hours in September to 9.5 in November.
What the National Park Service says about the weather
The Park lies within a temperate zone and experiences four full seasons. Summer can become very hot and humid. Snow is common as late as May and as early as October. The fort area can become muddy in all seasons. With most activities outdoors, good closed-toe walking shoes and low heels are advised. Air conditioning and heating is limited to park visitor center most times in the year. Water and extra layers of clothing in all seasons are always recommended!
Weather description courtesy of the National Park Service — official park site.
Today's forecast for Fort Stanwix
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 43.21°N, 75.46°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 Fort Stanwix National Monument →
Weather and crowds together
July is both the warmest month and the busiest, with about 3.4× 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 Fort Stanwix National Monument. For hotels, cabins and rentals close to the park, see where to stay near Fort Stanwix.
Where to stay near Fort Stanwix
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Top-rated places to stay near Fort Stanwix
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Frequently Asked Questions
July is the warmest month at Fort Stanwix National Monument, with an average high of 81°F and an average low of 60°F. That is the 1991–2020 average at the nearest long-record NOAA station, 3.2 miles from the park's reference point. Temperatures inside the park can differ, particularly with elevation.
January is the coldest month at Fort Stanwix National Monument, with an average low of 13°F and an average high of 30°F, based on NOAA 1991–2020 climate normals.
October is the wettest month, with about 4.7 inches of precipitation. February is the driest, at about 2.4 inches. The station records about 44 inches of precipitation in an average year.
Daylight at Fort Stanwix National Monument runs from about 8.8 hours a day in December to about 15.2 hours in June, computed from the park's latitude.
Weather at nearby parks
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Keep exploring
Sources: NOAA NCEI U.S. Climate Normals 1991–2020 (station USW00064775), 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.