Manchester, NH Climate & Monthly Averages
The climate of Manchester
Manchester has a humid continental climate, marked by warm summers and cold, often snowy winters. Average daytime highs range from about 34°F (1°C) in January to around 84°F (29°C) in July, and the city records roughly 123 days of measurable precipitation a year.
Climate quick facts
- Hottest month: July - highs near 84°F (29°C)
- Coldest month: January - highs near 34°F (1°C)
- Record high: 100°F (38°C) · Record low: -19°F (-28°C) (2015–2024)
- Wettest month: December (11 rainy days) · Sunniest: July (11.2 h sun/day)
- Climate type: humid continental - warm summers and cold, often snowy winters
- Snow: about 21 days a year
Temperatures through the year
The warmest stretch of the year centers on July. Highs average 84°F (29°C) and overnight lows stay near 64°F (18°C). The coolest month is January, with typical highs of 34°F (1°C) and lows around 18°F (-8°C). Based on 2015–2024 weather data, temperatures have reached as high as 100°F (38°C) and dropped as low as -19°F (-28°C).
Rain, sun and snow
December is usually the wettest month. It brings about 4.6 inches (116 mm) of rain over 11 days, while May is the driest. July brings the most sunshine, averaging 11.2 hours of sun a day. Snow falls on about 21 days in a typical year, mostly from November through April.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 34° | 18° | 10 | 3.7 in | 6.0 h/day | 68% |
| February | 37° | 18° | 10 | 3.0 in | 6.8 h/day | 69% |
| March | 44° | 26° | 10 | 3.7 in | 7.9 h/day | 66% |
| April | 55° | 36° | 12 | 4.0 in | 8.2 h/day | 68% |
| May | 69° | 48° | 10 | 2.7 in | 10.0 h/day | 67% |
| June | 78° | 57° | 11 | 3.6 in | 10.9 h/day | 68% |
| July | 84° | 64° | 11 | 4.3 in | 11.2 h/day | 70% |
| August | 82° | 63° | 11 | 3.8 in | 10.7 h/day | 73% |
| September | 74° | 56° | 9 | 3.8 in | 9.0 h/day | 75% |
| October | 62° | 45° | 9 | 4.4 in | 7.2 h/day | 77% |
| November | 48° | 33° | 9 | 3.1 in | 6.5 h/day | 72% |
| December | 39° | 25° | 11 | 4.6 in | 5.6 h/day | 73% |
Manchester month by month
Manchester weather in January
January brings highs around 34°F (1°C), lows near 18°F (-8°C), about 10 wet days and roughly 5 snowy days - typically the coldest month of the year in Manchester.
Manchester weather in February
February brings highs around 37°F (3°C), lows near 18°F (-8°C), about 10 wet days and roughly 6 snowy days.
Manchester weather in March
March brings highs around 44°F (7°C), lows near 26°F (-4°C), about 10 wet days and roughly 4 snowy days.
Manchester weather in April
April brings highs around 55°F (13°C), lows near 36°F (2°C), about 12 wet days and roughly 2 snowy days.
Manchester weather in May
May brings highs around 69°F (20°C), lows near 48°F (9°C), about 10 wet days - typically the driest month of the year in Manchester.
Manchester weather in June
June brings highs around 78°F (25°C), lows near 57°F (14°C), about 11 wet days.
Manchester weather in July
July brings highs around 84°F (29°C), lows near 64°F (18°C), about 11 wet days - typically the hottest month and the sunniest month of the year in Manchester.
Manchester weather in August
August brings highs around 82°F (28°C), lows near 63°F (17°C), about 11 wet days.
Manchester weather in September
September brings highs around 74°F (23°C), lows near 56°F (14°C), about 9 wet days.
Manchester weather in October
October brings highs around 62°F (16°C), lows near 45°F (7°C), about 9 wet days.
Manchester weather in November
November brings highs around 48°F (9°C), lows near 33°F (1°C), about 9 wet days and roughly 1 snowy days.
Manchester weather in December
December brings highs around 39°F (4°C), lows near 25°F (-4°C), about 11 wet days and roughly 4 snowy days - typically the wettest month of the year in Manchester.
Seasons in Manchester
Spring (March through May)
Spring in Manchester is crisp but comfortable, with daytime highs averaging 56°F (13°C) and nights around 37°F (3°C); expect showers on roughly 32 days across the season, plus around 5 snowy days.
Summer (June through August)
Summer in Manchester runs hot, with daytime highs averaging 81°F (27°C) and nights around 62°F (16°C); expect showers on roughly 34 days across the season.
Fall (September through November)
Fall in Manchester is mild, with daytime highs averaging 61°F (16°C) and nights around 45°F (7°C); expect showers on roughly 27 days across the season.
Winter (December through February)
Winter in Manchester is frigid, with daytime highs averaging 37°F (3°C) and nights around 20°F (-6°C); expect showers on roughly 31 days across the season, plus around 15 snowy days. Wind makes those temperatures feel harsher than they sound - pair the forecast winds with the wind speed converter to judge conditions on exposed skin.
Climate questions, answered
What is the average temperature in Manchester?
Is Manchester hot in summer?
Is Manchester cold in winter?
How many rainy days does Manchester get in a year?
Best time to visit Manchester
The best time to visit Manchester is generally May to October, when this window offers the warmest, brightest days of the year. Daytime temperatures in that window typically sit near 74°F (24°C).
Pack for Manchester with a heavy insulated coat, hat and gloves for winter; a compact umbrella or rain shell - showers are a regular feature. Evenings can feel noticeably cooler than afternoons - July nights average 64°F (18°C).
Manchester temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ.