USA weather averages for holidays in 2017/2018

Check the USA weather averages before you book your next holiday in 2017/2018. The average maximum daytime temperature in the USA in August is 30°C. The holiday weather guide shown below is for Washington.

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USA weather averages

Check USA weather averages before you book your next holiday. The warmest month in the USA is July with an average maximum temperature of 31°C. The sunniest months are June and July with on average 9 hours of bright sunshine per day. The months with the least number of days with some rain are September and October with 7 days. The USA weather averages shown below are for Washington.

Maximum daytime temperature (°C)

Hours of sunshine (daily)

  • Jan
  • Feb
  • Mar
  • Apr
  • May
  • Jun
  • Jul
  • Aug
  • Sep
  • Oct
  • Nov
  • Dec

Days with some rainfall

More weather parameters

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

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USA weather today

Here is the weather in USA today, Friday 18th August 2017. Expect isolated thunderstorms in USA with a maximum temperature of 31°C, moderate levels of heat & humidity and 4 hours of bright sunshine. There are 30-40 mm of rainfall expected with 62% chance of some rain and a gentle breeze of 19 kph from the south. The weather forecast shown below is for Washington.

  • 31
    °C maximum temperature
  • 24
    °C minimum temperature
  • isolated thunderstorms
  • 4
    hours of sunshine
  • 62
    % chance of some rain
  • <40
    mm of rainfall expected
  • M
    moderate heat & humidity
  • 19
    kph wind from S

5-day weather forecast

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

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

% of month affected by tropical storms
0
0
0
0
<1%
1%
1%
1%
2%
1%
0
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

The USA, D.C. tropical storm risk chart above shows the hurricane season for Washington, USA, D.C..

More about tropical storms

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USA holiday 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)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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

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Popular USA destinations

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