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Cary Weather by Month

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

Warmest month

July

32°C average high

Coolest month

January

1°C average low

Wettest month

September

120 mm of rain

Driest month

November

62 mm of rain

Average temperature and rainfall in Cary 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
January11°C1°C-17°C / 25°C
77 mm
69%9 km/h
February14°C3°C-15°C / 28°C
65 mm
68%10 km/h
March18°C6°C-9°C / 31°C
68 mm
64%11 km/h
April23°C11°C-2°C / 33°C
76 mm
65%11 km/h
May26°C15°C3°C / 35°C
87 mm
73%10 km/h
June30°C19°C9°C / 38°C
100 mm
74%9 km/h
July32°C22°C14°C / 38°C
91 mm
77%8 km/h
August30°C21°C12°C / 36°C
102 mm
79%8 km/h
September28°C18°C7°C / 37°C
120 mm
79%9 km/h
October22°C12°C-1°C / 36°C
73 mm
77%9 km/h
November16°C5°C-10°C / 28°C
62 mm
72%8 km/h
December13°C3°C-12°C / 25°C
88 mm
74%8 km/h

Best time to visit Cary

The most comfortable time to visit Cary is generally April to May and October, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around September, totalling about 1,009 mm a year.

Travellers who prefer heat should aim for July, when highs average 32°C. September is the month to avoid if rain would spoil your plans — it averages 120 mm, roughly 2× the rainfall of the driest month (November).

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

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