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United States of America

ARLINGTON, VIRGINIA


Home > North America > United States > Virginia
Elevation: 3 meters     Latitude: 38 51N     Longitude: 077 02W

WEATHER
 
CURRENT CONDITIONS

As of 18 September, 2019 @ 12:52 am EDT
(66 Minutes Ago)

Mostly Cloudy
Temperature
20.0°C
Humidity
72.9 %
Wind
5.6 km/h
Sunrise/Set
06:52 am
07:11 pm
Visibility
16 km
Dew Point
15.0 °C
Pressure
1020.3 millibars
Local Time
1:58 am EDT
18 September, 2019
 
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MONTHLY - ALL WEATHER AVERAGES   [ Show Summary ]
[ °F ]   °C
TEMPERATURE 
Average Temperature
Years on Record: 51  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C142371318232625211593

Average High Temperature
Years on Record: 51  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C19671219242831302620148

Average Low Temperature
Years on Record: 51  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C9-2-1271318212016104---

Highest Recorded Temperature
Years on Record: 51  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C40262731353738403938343023

Lowest Recorded Temperature
Years on Record: 51  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C-20-20-15-10-4181293-1-8-16

Average Number of Days Above 90F/32C
Years on Record: 51  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days35------------271393---------

Average Number of Days Above 70F/21C
Years on Record: 51  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days177---141124293131271541

Average Number of Days Below 32F/0C
Years on Record: 51  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days71211891------------------516

Average Number of Days Below 10F/-12C
Years on Record: 51  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days21---------------------------------



PRECIPITATION 
Average Precipitation
Years on Record: 51  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm99070608070908010010080707070



PRECIPITATION - RAIN 
Average Number of Days With Thunderstorms
Years on Record: 50  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days31------135675211---

Most Rain Reported in a Month
Years on Record: 51  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm1460180140210170270290320360310210170160

Least Recorded Rainfall
Years on Record: 51  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm680---1010---20202010------------



HUMIDITY 
Average Morning Relative Humidity
Years on Record: 54  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
%75717070707576778182817672

Average Evening Relative Humidity
Years on Record: 54  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
%52555047465152535455535355

Average Dew Point
Years on Record: 54  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C7-5-4---4111618181582-2



DEGREE DAYS 
Heating Degree Days
Years on Record: 51  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days2552.7508.1423.8327.2141.7---------------94.7266.7439.2

Cooling Degree Days
Years on Record: 51  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days731.9------------17.2158.3241.1215.3100---------

Growing Degree Days
Years on Record: 51  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days2278.8---------108.3275.6408.3499.4473.6350163.6------



SKY CONDITIONS 
Average Length of Day
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Hours12.710.311.212.413.714.815.415.114.112.811.610.510

Average Number of Days With Fog
Years on Record: 50  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days13011101091210101112131111



WIND 
Average Wind Speed
Years on Record: 54  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
km/h16202020141414141414141420



SOLAR RADIATION 
Average Daily Solar Radiation - Global
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m213.97.19.913.416.819.220.320.117.915.312.186.2

Average Daily Solar Radiation - Diffuse
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m25.8345.57.28.38.98.67.65.94.33.22.7

Average Daily Solar Radiation - Reflected
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m215.311.213.415.61717.617.817.917.31716.312.310.3

Average Daily Solar Radiation - Direct
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m21511.313.414.715.816.917.417.616.416.616.612.610.4

Maximum Daily Solar Radiation - Global
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m213.97.19.913.416.819.220.320.117.915.312.186.2

Maximum Daily Solar Radiation - Diffuse
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m25.934.15.77.48.69.18.87.86.34.63.32.7

Maximum Daily Solar Radiation - Reflected
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m218.113.416.718.919.420.720.719.519.319.920.615.612.3

Maximum Daily Solar Radiation - Direct
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m219.61418.519.82023.123.620.82021.523.117.413

Minimum Daily Solar Radiation - Global
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m211.467.910.814.512.717.117.915.813.19.85.94.8

Minimum Daily Solar Radiation - Diffuse
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m25.42.83.65.16.87.78.38.37.35.43.52.82.6

Minimum Daily Solar Radiation - Reflected
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m212.199.912.114.511.715.116.115.314.112.38.17.2

Minimum Daily Solar Radiation - Direct
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m210.18.38.69.711.87.212.113.912.912.210.876.4




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WEATHER FORECAST

As of 3:29 pm 17/9/19 EDT

Wednesday
Clear
24°
14°
Thursday
Light Clouds
23°
13°
Friday
Clear
25°
12°
Saturday
Clear
31°
16°
Sunday
Clear
33°
19°
Monday
Cloudy
34°
21°
Tuesday
Clear
29°
18°

Forecast data from The Norwegian Meteorological Institute; Current conditions data from the National Weather Service
All historical data and normals © Weatherbase


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