National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-09-11 05:32 UTC
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415
CDUS41 KLWX 110532
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
132 AM EDT MON SEP 11 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 10 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 72 259 PM 99 1983 82 -10 96
MINIMUM 47 512 AM 43 1981 59 -12 72
AVERAGE 60 70 -10 84
PRECIPITATION (IN)
YESTERDAY 0.00 1.50 1968 0.12 -0.12 0.00
MONTH TO DATE 1.63 1.19 0.44 0.17
SINCE SEP 1 1.63 1.19 0.44 0.17
SINCE JAN 1 34.63 29.19 5.44 28.17
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0
SINCE JUL 1 T 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 5 1 4 0
MONTH TO DATE 26 3 23 0
SINCE SEP 1 26 3 23 0
SINCE JUL 1 27 5 22 0
COOLING
YESTERDAY 0 6 -6 19
MONTH TO DATE 19 71 -52 124
SINCE SEP 1 19 71 -52 124
SINCE JAN 1 1080 1087 -7 1387
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 5.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 100 AM
LOWEST 47 300 PM
AVERAGE 70
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 99 1983
MINIMUM TEMPERATURE (F) 58 40 1976
SUNRISE AND SUNSET
SEPTEMBER 11 2017.....SUNRISE 648 AM EDT SUNSET 724 PM EDT
SEPTEMBER 12 2017.....SUNRISE 649 AM EDT SUNSET 722 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$