897
CDUS41 KLWX 180518
CLIDCA
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
118 AM EDT THU SEP 18 2008
...................................
...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR SEPTEMBER 17 2008...
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1871 TO 2008
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 79 347 PM 96 1991 79 0 72
MINIMUM 61 617 AM 44 1923 62 -1 50
AVERAGE 70 70 0 61
PRECIPITATION (IN)
YESTERDAY 0.00 3.26 1876 0.13 -0.13 0.00
MONTH TO DATE 4.11 2.16 1.95 0.60
SINCE SEP 1 4.11 2.16 1.95 0.60
SINCE JAN 1 37.66 28.42 9.24 21.64
SNOWFALL (IN)
YESTERDAY 0.0 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 4
MONTH TO DATE 0 0 0 10
SINCE SEP 1 0 0 0 10
SINCE JUL 1 0 7 -7 10
COOLING
YESTERDAY 5 6 -1 0
MONTH TO DATE 220 139 81 161
SINCE SEP 1 220 139 81 161
SINCE JAN 1 1609 1438 171 1589
..............................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 4.3
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 84 300 AM
LOWEST 38 400 PM
AVERAGE 61
..........................................................
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 91 1927
1921
1898
MINIMUM TEMPERATURE (F) 61 45 1937
SUNRISE AND SUNSET
SEPTEMBER 18 2008.....SUNRISE 653 AM EDT SUNSET 711 PM EDT
SEPTEMBER 19 2008.....SUNRISE 653 AM EDT SUNSET 709 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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