National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-04-21 05:33 UTC
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262
CDUS41 KLWX 210533
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
133 AM EDT FRI APR 21 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 20 2017...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1962 TO 2017
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 82 423 PM 88 1985 68 14 71
1976
MINIMUM 55 553 AM 28 1974 43 12 40
AVERAGE 69 56 13 56
PRECIPITATION (IN)
YESTERDAY 0.33 2.90 2008 0.11 0.22 0.00
MONTH TO DATE 2.10 2.31 -0.21 1.19
SINCE MAR 1 6.22 5.69 0.53 2.64
SINCE JAN 1 9.66 11.11 -1.45 10.90
SNOWFALL (IN)
YESTERDAY 0.0 T 1983 0.0 0.0
MONTH TO DATE T 0.3 -0.3
SINCE JUL 1 7.3 22.0 -14.7
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 10 -10 9
MONTH TO DATE 138 253 -115 277
SINCE MAR 1 778 900 -122 723
SINCE JUL 1 3671 4490 -819 3814
COOLING
YESTERDAY 4 1 3 0
MONTH TO DATE 27 8 19 8
SINCE MAR 1 29 11 18 13
SINCE JAN 1 29 11 18 13
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION SW (230)
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 6.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 700 AM
LOWEST 46 400 PM
AVERAGE 70
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 89 1985
MINIMUM TEMPERATURE (F) 44 29 1983
SUNRISE AND SUNSET
APRIL 21 2017.........SUNRISE 624 AM EDT SUNSET 753 PM EDT
APRIL 22 2017.........SUNRISE 623 AM EDT SUNSET 754 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$