National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-05-11 05:30 UTC
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130
CDUS41 KLWX 110530
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
130 AM EDT THU MAY 11 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 10 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 75 355 PM 90 1963 74 1 63
MINIMUM 40 511 AM 31 1983 49 -9 54
1966
AVERAGE 58 61 -3 59
PRECIPITATION (IN)
YESTERDAY 0.00 1.61 1990 0.15 -0.15 0.01
MONTH TO DATE 1.67 1.35 0.32 3.58
SINCE MAR 1 8.83 8.20 0.63 6.91
SINCE JAN 1 12.27 13.62 -1.35 15.17
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0
SINCE JUL 1 7.3 22.0 -14.7
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 7 5 2 6
MONTH TO DATE 80 61 19 75
SINCE MAR 1 899 1043 -144 856
SINCE JUL 1 3792 4633 -841 3947
COOLING
YESTERDAY 0 2 -2 0
MONTH TO DATE 12 11 1 2
SINCE MAR 1 81 31 50 25
SINCE JAN 1 81 31 50 25
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 3.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 92 300 AM
LOWEST 27 400 PM
AVERAGE 60
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 90 1993
MINIMUM TEMPERATURE (F) 50 29 1966
SUNRISE AND SUNSET
MAY 11 2017...........SUNRISE 601 AM EDT SUNSET 812 PM EDT
MAY 12 2017...........SUNRISE 600 AM EDT SUNSET 813 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$