Weatheo

Arlington Weather by Month

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

Warmest month

July

31°C average high

Coolest month

January

-2°C average low

Wettest month

May

126 mm of rain

Driest month

February

64 mm of rain

Average temperature and rainfall in Arlington 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
January6°C-2°C-16°C / 24°C
73 mm
67%12 km/h
February9°C0°C-18°C / 27°C
64 mm
64%13 km/h
March14°C3°C-16°C / 30°C
70 mm
60%15 km/h
April20°C9°C-4°C / 33°C
90 mm
60%14 km/h
May24°C14°C2°C / 35°C
126 mm
69%12 km/h
June29°C18°C8°C / 36°C
103 mm
69%11 km/h
July31°C21°C14°C / 39°C
102 mm
73%9 km/h
August29°C20°C11°C / 37°C
94 mm
74%9 km/h
September26°C17°C5°C / 36°C
99 mm
75%10 km/h
October20°C11°C-1°C / 34°C
89 mm
74%11 km/h
November14°C4°C-10°C / 27°C
96 mm
66%12 km/h
December9°C1°C-14°C / 22°C
73 mm
70%11 km/h

Best time to visit Arlington

The most comfortable time to visit Arlington is generally May and September to October, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around May, totalling about 1,079 mm a year.

Travellers who prefer heat should aim for July, when highs average 31°C. May is the month to avoid if rain would spoil your plans — it averages 126 mm, roughly 2× the rainfall of the driest month (February).

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

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