Updated October 2026
Hempstead Lake State Park: Weather by Month and When to Go
Hempstead Lake State Park is a state park in New York. The USGS Protected Areas Database maps about 490 acres under its name. Average highs range from 39°F in January to 82°F in July and August.
Average highs sit between 60°F and 80°F in May through June and September through October. They run above 80°F in July and August and below 60°F in November through April. The figures are NOAA climate normals for 1991–2020, measured at a weather station 3.5 miles from the park.
Warmest average high
82°F
July and August
Coldest average low
26°F
January
Most precipitation
4.6 in
March and June
Longest days
14.9 h
June
Hempstead Lake State Park weather by month
| Month | Average high | Average low | Precipitation | Snowfall | Daylight |
|---|---|---|---|---|---|
| January | 39°F | 26°F | 3.8 in | 5.7 in | 9.4 h |
| February | 42°F | 27°F | 3.0 in | 7.6 in | 10.4 h |
| March | 48°F | 33°F | 4.6 in | 4.8 in | 11.7 h |
| April | 59°F | 41°F | 4.2 in | 1.0 in | 13.1 h |
| May | 67°F | 51°F | 4.3 in | 0.0 in | 14.3 h |
| June | 76°F | 61°F | 4.6 in | 0.0 in | 14.9 h |
| July | 82°F | 67°F | 4.3 in | 0.0 in | 14.6 h |
| August | 82°F | 67°F | 4.2 in | 0.0 in | 13.6 h |
| September | 75°F | 60°F | 3.8 in | 0.0 in | 12.3 h |
| October | 64°F | 48°F | 4.3 in | 0.0 in | 10.9 h |
| November | 54°F | 39°F | 3.6 in | 0.2 in | 9.7 h |
| December | 44°F | 31°F | 4.1 in | 6.2 in | 9.1 h |
Temperature, precipitation and snowfall figures are NOAA climate normals for 1991–2020 from station USC00306138, the nearest station with a complete set of temperature normals, 3.5 miles from the park. Conditions in the park can differ from the station's, most of all where the two sit at different elevations. Daylight is calculated for the park's latitude at the middle of each month. The acreage is what the USGS Protected Areas Database maps under the park's name. The state's own figure can differ, because the database may hold part of a park under another name.
What the averages show
- Temperature. July and August are the warmest months, each with an average high of 82°F. January is the coldest month, with an average low of 26°F and an average high of 39°F.
- Precipitation. March and June are the wettest months, each averaging 4.6 inches of precipitation, and February is the driest, at 3.0 inches. An average year brings about 48.8 inches in total.
- Snowfall. The station averages 25.5 inches of snow a year, with the most in February (7.6 inches).
- Daylight. Days run from about 9.1 hours of daylight in December to 14.9 hours in June.
Camping, trails, maps and fees
Whether Hempstead Lake State Park has camping or cabins, where its trails run, when it opens and what it charges are all published by the agency that runs the park. Its official page is the place to check before a trip.
Official Hempstead Lake State Park page
For the forecast rather than the averages, the National Weather Service issues a point forecast for the park's location.
National Weather Service forecast for Hempstead Lake State Park
Where to stay near Hempstead Lake State Park
Hotels, cabins and vacation rentals near Hempstead Lake State Park, with live availability and prices.
Top-rated places to stay near Hempstead Lake State Park
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Frequently Asked Questions
July and August are the warmest months, each with an average high of 82°F. January is the coldest month, with an average low of 26°F and an average high of 39°F. These are NOAA 1991–2020 climate normals from a weather station 3.5 miles from the park.
Average highs sit between 60°F and 80°F in May through June and September through October. They run above 80°F in July and August and below 60°F in November through April.
March and June are the wettest months, each averaging 4.6 inches of precipitation, and February is the driest, at 3.0 inches. An average year brings about 48.8 inches in total. Snowfall averages 25.5 inches a year, with the most in February.
Days run from about 9.1 hours of daylight in December to 14.9 hours in June. The hours are calculated for the park's latitude.
Nearest National Park Service sites
- Sagamore Hill National Historic Site16 miles away
- Gateway National Recreation Area17 miles away
- Saint Paul's Church National Historic Site17 miles away
Nearby state parks
- Valley Stream State Park3 miles away
- Jones Beach State Park9 miles away
- Bethpage State Park11 miles away
- Shirley Chisholm State Park12 miles away
Distances are measured in a straight line from the park, so the drive is longer.
Sources: NOAA NCEI U.S. Climate Normals 1991–2020; USGS Protected Areas Database for location and acreage; the official New York state park listing for the park's name.