Hempstead weather by month
What a typical year looks like in Hempstead, New York: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Jfk International Airport, 14 km from Hempstead; records cover 1948–2026.
The year at a glance
- Precipitation a year
- 43.3 in1100 mm
- Snow a year
- 26 in66 cm
- Last spring freeze
- Mar 31
- First fall freeze
- Nov 13
- Heating degree days
- 4,871
- Cooling degree days
- 1,016
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 13°−11° (heating, 99%) and 93°34° (cooling, 1%).
Month by month
Hempstead in January
Highs average 40°4° and lows 26°−3°, with 3.2 in82 mm of precipitation and 8 in19 cm of snow in a typical January.
- Record high
- 71°22° (2007)
- Record low
- −2°−19° (1985)
- Heating degree days
- 996
- Cooling degree days
- 0
Hempstead in February
Highs average 42°5° and lows 27°−3°, with 2.8 in70 mm of precipitation and 9 in22 cm of snow in a typical February.
- Record high
- 71°22° (1997)
- Record low
- −2°−19° (1963)
- Heating degree days
- 853
- Cooling degree days
- 0
Hempstead in March
Highs average 49°9° and lows 34°1°, with 3.9 in100 mm of precipitation and 4 in11 cm of snow in a typical March.
- Record high
- 85°29° (1990)
- Record low
- 7°−14° (1967)
- Heating degree days
- 739
- Cooling degree days
- 0
Hempstead in April
Highs average 59°15° and lows 43°6°, with 3.6 in90 mm of precipitation and 0.6 in1.5 cm of snow in a typical April.
- Record high
- 90°32° (1977)
- Record low
- 20°−7° (1982)
- Heating degree days
- 427
- Cooling degree days
- 2
Hempstead in May
Highs average 68°20° and lows 53°11°, with 3.7 in93 mm of precipitation in a typical May.
- Record high
- 99°37° (1969)
- Record low
- 34°1° (1966)
- Heating degree days
- 171
- Cooling degree days
- 30
Hempstead in June
Highs average 78°26° and lows 62°17°, with 3.9 in98 mm of precipitation in a typical June.
- Record high
- 102°39° (2025)
- Record low
- 45°7° (1967)
- Heating degree days
- 21
- Cooling degree days
- 177
Hempstead in July
Highs average 84°29° and lows 69°20°, with 3.9 in98 mm of precipitation in a typical July.
- Record high
- 104°40° (1966)
- Record low
- 55°13° (1963)
- Heating degree days
- 0
- Cooling degree days
- 346
Hempstead in August
Highs average 82°28° and lows 68°20°, with 4.1 in104 mm of precipitation in a typical August.
- Record high
- 101°38° (1948)
- Record low
- 46°8° (1965)
- Heating degree days
- 1
- Cooling degree days
- 311
Hempstead in September
Highs average 76°24° and lows 61°16°, with 3.6 in91 mm of precipitation in a typical September.
- Record high
- 98°37° (1983)
- Record low
- 40°4° (1950)
- Heating degree days
- 33
- Cooling degree days
- 135
Hempstead in OctoberThis month
Highs average 65°18° and lows 50°10°, with 3.7 in94 mm of precipitation in a typical October.
- Record high
- 95°35° (2019)
- Record low
- 30°−1° (1962)
- Heating degree days
- 255
- Cooling degree days
- 15
Hempstead in November
Highs average 54°12° and lows 40°4°, with 3.1 in78 mm of precipitation and 0.4 in1 cm of snow in a typical November.
- Record high
- 82°28° (2024)
- Record low
- 15°−9° (2018)
- Heating degree days
- 546
- Cooling degree days
- 0
Hempstead in December
Highs average 45°7° and lows 32°0°, with 4 in101 mm of precipitation and 5 in11 cm of snow in a typical December.
- Record high
- 75°24° (1998)
- Record low
- 2°−17° (1983)
- Heating degree days
- 829
- Cooling degree days
- 0