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United States of America

WASHINGTON - MCMILLAN RESERVOIR, DISTRICT OF COLUMBIA


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Elevation: 23 feet     Latitude: 38 56N     Longitude: 077 01W

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MONTHLY - WEATHER AVERAGES SUMMARY   [ Show All Data ]
[ °C ]   °F
Average Temperature
Years on Record: 29  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
F56.134.936.844.255.264.372.877.275.569.158.547.437.6

Average High Temperature
Years on Record: 29  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
F65.943.446.254.26675.183.187.185.578.968.456.945.8

Average Low Temperature
Years on Record: 29  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
F46.426.327.434.244.253.662.567.265.659.248.638.129.5

Average Precipitation
Years on Record: 29  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
in.43.42.92.93.73.33.94.14.253.73.13.13.6

Average Number of Days With Precipitation
Years on Record: 29  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days1161091110111091088910

Highest Recorded Temperature
Years on Record: 29  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
F103797986959599101103102948675

Lowest Recorded Temperature
Years on Record: 29  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
F-4-4-31122324351483726124

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 Above 90F/32C
Years on Record: 29  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days29.1---------0.51.2610.67.82.90.2------

Average Number of Days Below 32F/0C
Years on Record: 29  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days88.723.620.913.62.10.1------------0.78.319.5

Average Snowfall
Years on Record: 29  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
in.13.23.74.21.7---------------------0.53.1

Most Rain Reported in a Month
Years on Record: 29  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
in.615.66.86.97.28.113.210.614.113.47.67.37.2

Least Rain Reported in a Month
Years on Record: 29  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
in.33.90.30.61.41.41.31.10.70.20.3---0.60.1







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