Manchester weather by month
What a typical year looks like in Manchester, New Hampshire: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Concord Municipal Airport, 25 km from Manchester; records cover 1868–2026.
The year at a glance
- Precipitation a year
- 42 in1066 mm
- Snow a year
- 68 in172 cm
- Last spring freeze
- May 13
- First fall freeze
- Sep 30
- Heating degree days
- 6,980
- Cooling degree days
- 528
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −7°−22° (heating, 99%) and 94°34° (cooling, 1%).
Month by month
Manchester in January
Highs average 32°0° and lows 13°−11°, with 2.8 in71 mm of precipitation and 17 in43 cm of snow in a typical January.
- Record high
- 72°22° (1876)
- Record low
- −35°−37° (1878)
- Heating degree days
- 1325
- Cooling degree days
- 0
Manchester in February
Highs average 35°2° and lows 15°−10°, with 2.8 in70 mm of precipitation and 17 in43 cm of snow in a typical February.
- Record high
- 74°23° (2018)
- Record low
- −37°−38° (1943)
- Heating degree days
- 1127
- Cooling degree days
- 0
Manchester in March
Highs average 44°6° and lows 23°−5°, with 3.3 in83 mm of precipitation and 14 in35 cm of snow in a typical March.
- Record high
- 89°32° (1998)
- Record low
- −20°−29° (1869)
- Heating degree days
- 978
- Cooling degree days
- 0
Manchester in April
Highs average 58°14° and lows 33°1°, with 3.4 in87 mm of precipitation and 2.5 in6.4 cm of snow in a typical April.
- Record high
- 95°35° (1976)
- Record low
- 4°−16° (2016)
- Heating degree days
- 590
- Cooling degree days
- 2
Manchester in May
Highs average 69°21° and lows 44°7°, with 3.5 in88 mm of precipitation in a typical May.
- Record high
- 98°37° (1911)
- Record low
- 21°−6° (1947)
- Heating degree days
- 278
- Cooling degree days
- 20
Manchester in June
Highs average 78°25° and lows 54°12°, with 3.8 in96 mm of precipitation in a typical June.
- Record high
- 101°38° (1919)
- Record low
- 30°−1° (1972)
- Heating degree days
- 71
- Cooling degree days
- 94
Manchester in July
Highs average 83°28° and lows 59°15°, with 3.6 in92 mm of precipitation in a typical July.
- Record high
- 102°39° (1911)
- Record low
- 35°2° (1965)
- Heating degree days
- 10
- Cooling degree days
- 200
Manchester in August
Highs average 82°28° and lows 57°14°, with 3.6 in92 mm of precipitation in a typical August.
- Record high
- 101°38° (1975)
- Record low
- 29°−2° (1965)
- Heating degree days
- 21
- Cooling degree days
- 159
Manchester in September
Highs average 74°23° and lows 49°9°, with 3.6 in92 mm of precipitation in a typical September.
- Record high
- 98°37° (1953)
- Record low
- 20°−7° (1941)
- Heating degree days
- 160
- Cooling degree days
- 50
Manchester in OctoberThis month
Highs average 61°16° and lows 38°3°, with 4.4 in113 mm of precipitation and 0.8 in2 cm of snow in a typical October.
- Record high
- 92°33° (1879)
- Record low
- 10°−12° (1969)
- Heating degree days
- 488
- Cooling degree days
- 3
Manchester in November
Highs average 48°9° and lows 29°−2°, with 3.4 in87 mm of precipitation and 2.5 in6.4 cm of snow in a typical November.
- Record high
- 80°27° (1876)
- Record low
- −17°−27° (1875)
- Heating degree days
- 794
- Cooling degree days
- 0
Manchester in December
Highs average 37°3° and lows 20°−7°, with 3.7 in94 mm of precipitation and 14 in36 cm of snow in a typical December.
- Record high
- 73°23° (1998)
- Record low
- −24°−31° (1875)
- Heating degree days
- 1138
- Cooling degree days
- 0