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on behalf of WMO by

Hong Kong Observatory
of Hong Kong, China.
 
World Weather Information Service
United States of America
National Weather Service
National Weather Service
Weather Information for Washington DC
  MAPMAP
Weather Forecast
Issued at 18:32  (Local time)  10 Dec  2018 
Date Temperature oC Weather
Minimum Maximum
11 Dec
( Tue ) 		-3 5 Sunny
Sunny
12 Dec
( Wed ) 		-2 5 Sunny
Sunny
13 Dec
( Thu ) 		-1 5 Partly Sunny
Partly Sunny
14 Dec
( Fri ) 		1 11 Rain Likely
Rain Likely
15 Dec
( Sat ) 		7 12 Chance Showers
Chance Showers
16 Dec
( Sun ) 		4 10 Partly Sunny
Partly Sunny
17 Dec
( Mon ) 		3 9 Mostly Sunny
Mostly Sunny
>> Click here for temperatures in oF
 
Climatological Information
Month Mean Temperature oC Mean Total Rainfall (mm) Mean Number of Rain Days
Daily
Minimum		 Daily
Maximum
Jan -4.5 5.8 68.1 9.9
Feb -3.3 8.0 69.6 9.0
Mar 0.5 13.1 85.9 10.5
Apr 5.6 19.3 88.1 10.7
May 10.7 23.9 115.6 12.2
Jun 16.1 28.8 101.1 10.9
Jul 18.6 31.1 93.2 10.8
Aug 17.9 30.3 89.7 9.4
Sep 13.5 26.3 99.6 8.7
Oct 6.6 20.1 82.6 7.6
Nov 1.8 14.2 86.6 9.1
Dec -2.7 7.8 75.2 9.9
>> Click here for temperatures in oF

Remarks:
* Climatological information is based on monthly averages for the 30-year period 1981-2010.
* Attention: Please note that the averaging period for climatological information and the definition of "Mean Number of Precipitation/Rain Days" quoted in this web site may be different for different countries. Hence, care should be taken when city climatologies are compared.