Weatheo

Nashua Weather by Month

Average temperatures, rainfall and humidity for Nashua, United States, month by month, built from OpenWeather’s historical records. Use it to see what a typical Nashua month looks like before you travel — then check the live Nashua forecast for the days ahead.

Warmest month

July

29°C average high

Coolest month

January

-6°C average low

Wettest month

October

95 mm of rain

Driest month

February

38 mm of rain

Average temperature and rainfall in Nashua by month

Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.

MonthAvg highAvg lowRecord low / highRainfallHumidityWind
January2°C-6°C-22°C / 20°C
56 mm
69%12 km/h
February4°C-5°C-25°C / 23°C
38 mm
67%13 km/h
March8°C-1°C-18°C / 24°C
62 mm
63%14 km/h
April14°C4°C-8°C / 31°C
77 mm
63%14 km/h
May21°C10°C0°C / 35°C
80 mm
66%12 km/h
June25°C15°C4°C / 38°C
93 mm
70%10 km/h
July29°C18°C11°C / 37°C
94 mm
72%9 km/h
August27°C17°C9°C / 41°C
71 mm
73%9 km/h
September23°C14°C2°C / 34°C
76 mm
75%9 km/h
October17°C8°C-6°C / 29°C
95 mm
76%10 km/h
November10°C1°C-13°C / 26°C
66 mm
70%11 km/h
December5°C-2°C-20°C / 19°C
92 mm
72%11 km/h

Best time to visit Nashua

The most comfortable time to visit Nashua is generally June and August to September, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around October, totalling about 899 mm a year.

Travellers who prefer heat should aim for July, when highs average 29°C. October is the month to avoid if rain would spoil your plans — it averages 95 mm, roughly 3× the rainfall of the driest month (February).

Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Nashua forecast for what is happening now.

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