USA weather averages

Going to the USA? Find the best month to visit the USA based on the weather.

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Check the USA weather averages before you book your next holiday in 2018/2019. Today's maximum temperature in the USA is expected to be 4°C, while the average maximum temperature in December is 8°C. The holiday weather guide shown above is for Washington.

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More about USA

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The weather for USA, represented by Washington, shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by MeteoBlue. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

USA weather averages: best month

USA Best month Averages
Warmest July 31°C
Sunniest June & July 9 hours per day
Least rain September & October 7 days

USA climate guide

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Tropical storm risk: USA, D.C. hurricane season

% of month affected by tropical storms
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0
0
0
<1%
1%
1%
1%
2%
1%
0
0
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Dec

The USA, D.C. tropical storm risk chart above shows the hurricane season for Washington, USA, D.C.. The chart was processed from data supplied by the US Meteorological Agency (NOAA). Find out more about our data sources.

More about tropical storms

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USA weather averages by month

Check USA holiday weather averages for a particular month by selecting from the list below. Monthly weather guides include figures for temperature, rainfall, sunshine hours and sea temperature plus daily sunrise & sunset times.

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Compare USA weather with the UK

Below the USA weather chart shows maximum daytime temperature for USA (Washington) and the UK (London). For more weather parameters or to change the destinations shown visit the comparison weather tool.

Maximum daytime temperature (°C)

USA (Washington)
UK (London)
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Dec

Metric (°C / mm)  |  Imperial (°F / inches)

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Popular USA destinations

Below are average maximum temperatures at popular destinations in the USA in December. Select a destination to see the weather overview and compare average conditions with today's forecast.

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More USA regions

All destinations (A to Z)

Can't see your chosen destination? Use our A to Z search to find your required the holiday weather guide:

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