Lancaster weather by month
What a typical year looks like in Lancaster, New Hampshire: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at York Pond, 19 km from Lancaster; records cover 1966–2026.
The year at a glance
- Precipitation a year
- 48.3 in1226 mm
- Snow a year
- 96 in243 cm
- Last spring freeze
- May 25
- First fall freeze
- Sep 19
- Heating degree days
- 9,075
- Cooling degree days
- 154
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −17°−27° (heating, 99%) and 87°31° (cooling, 1%).
Month by month
Lancaster in January
Highs average 25°−4° and lows 4°−16°, with 3.2 in82 mm of precipitation and 21 in54 cm of snow in a typical January.
- Record high
- 63°17° (1995)
- Record low
- −31°−35° (1994)
- Heating degree days
- 1572
- Cooling degree days
- 0
Lancaster in February
Highs average 28°−2° and lows 5°−15°, with 2.9 in73 mm of precipitation and 24 in61 cm of snow in a typical February.
- Record high
- 68°20° (2018)
- Record low
- −35°−37° (1993)
- Heating degree days
- 1358
- Cooling degree days
- 0
Lancaster in March
Highs average 36°2° and lows 15°−10°, with 3.2 in81 mm of precipitation and 16 in42 cm of snow in a typical March.
- Record high
- 79°26° (2012)
- Record low
- −22°−30° (2007)
- Heating degree days
- 1226
- Cooling degree days
- 0
Lancaster in April
Highs average 49°10° and lows 27°−3°, with 3.7 in95 mm of precipitation and 6 in15 cm of snow in a typical April.
- Record high
- 86°30° (2009)
- Record low
- 2°−17° (1995)
- Heating degree days
- 801
- Cooling degree days
- 0
Lancaster in May
Highs average 63°17° and lows 39°4°, with 4.4 in112 mm of precipitation and 0.4 in1 cm of snow in a typical May.
- Record high
- 97°36° (1998)
- Record low
- 17°−8° (2026)
- Heating degree days
- 441
- Cooling degree days
- 6
Lancaster in June
Highs average 72°22° and lows 48°9°, with 4.6 in117 mm of precipitation in a typical June.
- Record high
- 93°34° (1995)
- Record low
- 28°−2° (2020)
- Heating degree days
- 182
- Cooling degree days
- 30
Lancaster in July
Highs average 76°25° and lows 53°12°, with 4.8 in121 mm of precipitation in a typical July.
- Record high
- 95°35° (1998)
- Record low
- 36°2° (1992)
- Heating degree days
- 75
- Cooling degree days
- 62
Lancaster in August
Highs average 75°24° and lows 51°11°, with 4.4 in112 mm of precipitation in a typical August.
- Record high
- 94°34° (2001)
- Record low
- 31°−1° (1989)
- Heating degree days
- 106
- Cooling degree days
- 42
Lancaster in September
Highs average 68°20° and lows 43°6°, with 3.7 in93 mm of precipitation in a typical September.
- Record high
- 91°33° (2001)
- Record low
- 21°−6° (2000)
- Heating degree days
- 299
- Cooling degree days
- 14
Lancaster in OctoberThis month
Highs average 54°12° and lows 33°1°, with 5.3 in134 mm of precipitation and 1.7 in4.3 cm of snow in a typical October.
- Record high
- 83°28° (2023)
- Record low
- 12°−11° (2002)
- Heating degree days
- 665
- Cooling degree days
- 0
Lancaster in November
Highs average 41°5° and lows 24°−5°, with 3.9 in99 mm of precipitation and 7 in19 cm of snow in a typical November.
- Record high
- 72°22° (2002)
- Record low
- −10°−23° (1989)
- Heating degree days
- 980
- Cooling degree days
- 0
Lancaster in December
Highs average 30°−1° and lows 12°−11°, with 4.2 in107 mm of precipitation and 18 in46 cm of snow in a typical December.
- Record high
- 65°18° (2001)
- Record low
- −27°−33° (2004)
- Heating degree days
- 1370
- Cooling degree days
- 0