Updated October 2026
Sagamore Hill National Historic Site Weather by Month
Sagamore Hill National Historic Site is warmest in July, when the nearest NOAA climate station averages a high of 83°F and a low of 66°F, and coldest in January, with an average high of 38°F and an average low of 25°F. September 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, 6.5 miles from the park's reference point. A single station cannot describe a whole park: temperatures elsewhere in Sagamore Hill National Historic Site can differ from these, particularly with elevation.
Warmest month
Jul
83°F avg high
Coldest month
Jan
25°F avg low
Wettest month
Sep
4.7 in avg
Longest days
Jun
14.9 h of daylight
Average weather at Sagamore Hill by month
| Month | Avg high | Avg low | Precipitation | Daylight |
|---|---|---|---|---|
| January | 38°F | 25°F | 3.7 in | 9.4 h |
| February | 40°F | 25°F | 3.1 in | 10.4 h |
| March | 47°F | 31°F | 4.2 in | 11.7 h |
| April | 60°F | 41°F | 4.1 in | 13.1 h |
| May | 70°F | 51°F | 3.9 in | 14.3 h |
| June | 78°F | 60°F | 4.3 in | 14.9 h |
| July | 83°F | 66°F | 3.8 in | 14.7 h |
| August | 81°F | 65°F | 4.3 in | 13.6 h |
| September | 74°F | 59°F | 4.7 in | 12.3 h |
| October | 63°F | 49°F | 4.3 in | 10.9 h |
| November | 52°F | 39°F | 3.5 in | 9.7 h |
| December | 43°F | 31°F | 4.6 in | 9.1 h |
| Year total | 48.5 in |
NOAA 1991–2020 climate normals from station USC00301309, 6.5 miles from the park's reference point. Daylight is the monthly average, computed from the park's latitude. Each month links to how crowded Sagamore Hill is at that time of year.
Sagamore Hill weather by season
Winter: December to February
Average highs bottom out at 38°F in January, between 43°F in December and 40°F in February, with average lows between 25°F and 31°F. The average low is at or below freezing in all three months. Together the three months average 11.4 inches of precipitation, about 24% of the yearly total and less than in any other season. Daylight is at its shortest, about 9.1 hours in December.
Spring: March to May
Average highs climb from 47°F in March to 70°F in May, with average lows between 31°F and 51°F. The average low is at or below freezing in March. Together the three months average 12.2 inches of precipitation, about 25% of the yearly total. Daylight lengthens from about 11.7 hours in March to 14.3 in May.
Summer: June to August
Average highs peak at 83°F in July, between 78°F in June and 81°F in August, with average lows between 60°F and 66°F. Together the three months average 12.4 inches of precipitation, about 26% of the yearly total. Daylight is at its longest, about 14.9 hours in June.
Fall: September to November
Average highs fall from 74°F in September to 52°F in November, with average lows between 39°F and 59°F. Together the three months average 12.5 inches of precipitation, about 26% of the yearly total and more than in any other season. Daylight shortens from about 12.3 hours in September to 9.7 in November.
What the National Park Service says about the weather
The Atlantic Ocean and Long Island Sound moderates the climate of Long Island and Sagamore Hill. Spring: Highs average between 50 F and 70 F. Snow in early March becomes rain by April. Summer: Average highs range between 70 F and the upper 80s F. Summers are drier but thunderstorms are possible. Fall: Highs are from the mid-50s F to the mid-70s F. Fall is the driest season, but showers are possible. Winter: Highs are around 40 F. Snow showers are common; the largest accumulations come in February.
Weather description courtesy of the National Park Service — official park site.
Today's forecast for Sagamore Hill
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 40.89°N, 73.50°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 Sagamore Hill National Historic Site →
Weather and crowds together
July is both the warmest month and the busiest, with about 1.5× 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 Sagamore Hill National Historic Site. For hotels, cabins and rentals close to the park, see where to stay near Sagamore Hill.
Where to stay near Sagamore Hill
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Frequently Asked Questions
July is the warmest month at Sagamore Hill National Historic Site, with an average high of 83°F and an average low of 66°F. That is the 1991–2020 average at the nearest long-record NOAA station, 6.5 miles from the park's reference point. Temperatures inside the park can differ, particularly with elevation.
January is the coldest month at Sagamore Hill National Historic Site, with an average low of 25°F and an average high of 38°F, based on NOAA 1991–2020 climate normals.
September is the wettest month, with about 4.7 inches of precipitation. February is the driest, at about 3.1 inches. The station records about 48.5 inches of precipitation in an average year.
Daylight at Sagamore Hill National Historic Site runs from about 9.1 hours a day in December to about 14.9 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 USC00301309), 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.