National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-07-20 05:36 UTC
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645
CDUS41 KLWX 200536
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
136 AM EDT THU JUL 20 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 19 2017...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1960 TO 2017
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 93 402 PM 98 1977 88 5 91
MINIMUM 70 527 AM 53 1976 66 4 70
AVERAGE 82 77 5 81
PRECIPITATION (IN)
YESTERDAY 0.00 1.52 1968 0.11 -0.11 0.00
MONTH TO DATE 5.55 2.24 3.31 1.31
SINCE JUN 1 6.83 6.22 0.61 7.66
SINCE JAN 1 25.92 23.04 2.88 25.33
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 6 15 -9 3
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 17 12 5 16
MONTH TO DATE 265 223 42 254
SINCE JUN 1 521 460 61 507
SINCE JAN 1 658 552 106 605
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 3.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 200 AM
LOWEST 47 400 PM
AVERAGE 74
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 101 1980
MINIMUM TEMPERATURE (F) 66 55 1974
SUNRISE AND SUNSET
JULY 20 2017..........SUNRISE 601 AM EDT SUNSET 831 PM EDT
JULY 21 2017..........SUNRISE 601 AM EDT SUNSET 831 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$