USA Climate Guide to the Average Weather & Temperatures with Graphs Elucidating Sunshine and Rainfall Data & Information about Wind Speeds & Humidity:

  • Washington, District Of Columbia, USA latitude & longitude; 38°54'N 77°3'W.
  • Altitude; 22 m (72 ft).
  • The average temperature in USA is 14.1 °C (57 °F).
  • The range of average monthly temperatures is 23 °C.
  • The warmest average max/ high temperature is 31 °C (88 °F) in July.
  • The coolest average min/ low temperature is -1 °C (30 °F) in January, February & December.
  • USA receives on average 1080 mm (42.5 in) of precipitation annually or 90 mm (3.5 in) each month.
  • On balance there are 121 days annually on which greater than 0.1 mm (0.004 in) of precipitation (rain, sleet, snow or hail) occurrs or 10.1 days on an average month.
  • The month with the driest weather is February when on balance 68 mm (2.7 in) of rain, sleet, hail or snow falls across 9 days.
  • The month with the wettest weather is August when on balance 120 mm (4.7 in) of rain, sleet, hail or snow falls across 10 days.
  • Mean relative humidity for an average year is recorded as 52.7% and on a monthly basis it ranges from 46% in April to 58% in January.
  • There is an average range of hours of sunshine in USA of between 4.6 hours per day in December and 9.8 hours per day in June.
  • On balance there are 2601 sunshine hours annually and approximately 7.1 sunlight hours for each day.
  • On balance there are 81 days annually registering frost in USA and in January there are on average 25 days with frost.

USA Climate Graph (Metric | Imperial units)

USA Climate Graph

Add the USA Climate Graph (metric) to your web page!

Use our metric climate graph for USA on your travel or accommodation website to help people thinking of booking a flight or hotel, renting a villa or purchasing property etc. (a back link is required):


USA Weather Averages

  Average Minimum Temperatures in USA (°C) Average Maximum Temperature in USA (°C) USA Average Temperature (°C) Average Sea Temp (°C) Average Precipitation/ Rainfall (mm) Wet Days (>0.1 mm) Average Sunlight Hours/ Day Relative Humidity (%) Average Wind Speed in USA (Beaufort) Average Number of Days with Frost  
Weather in USA in January -1 7 3 3 84 11 4.9 58 3 25 Average Temperature in USA in January
Weather in USA in February -1 8 3.5 4 68 9 5.6 52 3 20 Average Temperature in USA in February
Weather in USA in March 2 12 7 9 96 12 6.8 49.0 3 10 Average Temperature in USA in March
Weather in USA in April 8 19 14 14 85 10 7.3 46 3 1 Average Temperature in USA in April
Weather in USA in May 13 25 19 20 103 12 8.2 51 3 0 Average Temperature in USA in May
Weather in USA in June 18 29 24 25 88 10 9.8 52 3 0 Average Temperature in USA in June
Weather in USA in July 21 31 26 28 108 11 9.2 53 3 0 Average Temperature in USA in July
Weather in USA in August 20 30 25 28 120 10 8.5 55 3 0 Average Temperature in USA in August
Weather in USA in September 16 26 21 25 100 9 7.8 55 3 0 Average Temperature in USA in September
Weather in USA in October 10 20 15 18 78 8 6.8 54 3 1 Average Temperature in USA in October
Weather in USA in November 4 14 9 12 75 9 6.0 52 3 5 Average Temperature in USA in November
Weather in USA in December -1 8 3.5 5 75 10 4.6 55 3 19 Average Temperature in USA in December

USA Climograph/ Climate Chart (imperial)

USA Temperature Chart

Add the USA Climograph/ Climate Chart (imperial) to your web page!

Use our imperial climate chart for USA on your travel or accommodation website to help people thinking of booking a flight or hotel, renting a villa or purchasing property etc. (a back link is required):


USA Temperatures in Farenheit

  Average Minimum Temperatures in USA (°F) Average Maximum Temperature in USA (°F) Average Temperature (°F) Average Sea Temp (°F) Average Precipitation/ Rainfall (in) Wet Days (>0.004 in) Average Sunlight Hours/ Day Relative Humidity (%) Average Wind Speed (Beaufort) Average Number of Days with Frost  
Temperatures in USA in January 30 45 37 37 3.3 11 4.9 58 3 25 Climate in USA in January
Temperatures in USA in February 30 46 38 39 2.7 9 5.6 52 3 20 Climate in USA in February
Temperatures in USA in March 36 54 45 48 3.8 12 6.8 49 3 10 Climate in USA in March
Temperatures in USA in April 46 66 56 57 3.3 10 7.3 46 3 1 Climate in USA in April
Temperatures in USA in May 55 77 66 68 4.1 12 8.2 51 3 0 Climate in USA in May
Temperatures in USA in June 64 84 74 77 3.5 10 9.8 52 3 0 Climate in USA in June
Temperatures in USA in July 70 88 79 82 4.3 11 9.2 53 3 0 Climate in USA in July
Temperatures in USA in August 68 86 77 82 4.7 10 8.5 55 3 0 Climate in USA in August
Temperatures in USA in September 61 79 70 77 3.9 9 7.8 55 3 0 Climate in USA in September
Temperatures in USA in October 50 68 59 64 3.1 8 6.8 54 3 1 Climate in USA in October
Temperatures in USA in November 39 57 48 54 3.0 9 6.0 52 3 5 Climate in USA in November
Temperatures in USA in December 30 46 38 41 3.0 10 4.6 55 3 19 Climate in USA in December

Figures for Washington, District Of Columbia. See also:

Forum: USA

© 2008-2011 climatetemp.info - Last updated 22 July 2011 - Sitemap - Contact Us - Privacy Policy.