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Climatological Report (Daily)
Issued by NWS Sterling, VA
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CDUS41 KLWX 100525
CLIDCA

CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
125 AM EDT FRI SEP 10 2021

...................................

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR SEPTEMBER 9 2021...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2021


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         80   4:59 PM  98    1872  83     -3       79
  MINIMUM         67  11:50 PM  48    1901  67      0       73
  AVERAGE         74                        75     -1       76

PRECIPITATION (IN)
  YESTERDAY        0.25          1.59 2018   0.13   0.12     0.64
  MONTH TO DATE    1.60                      1.15   0.45     1.14
  SINCE SEP 1      1.60                      1.15   0.45     1.14
  SINCE JAN 1     36.78                     29.06   7.72    36.99

SNOWFALL (IN)
  YESTERDAY        0.0          MM      MM   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE SEP 1      0.0                       0.0    0.0      0.0
  SINCE JUL 1      0.0                       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 SEP 1      0                         0      0        0
  SINCE JUL 1      0                         0      0        0

 COOLING
  YESTERDAY        9                        10     -1       11
  MONTH TO DATE   86                        99    -13      109
  SINCE SEP 1     86                        99    -13      109
  SINCE JAN 1   1605                      1551     54     1641
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION    NW (320)
  HIGHEST GUST SPEED    19   HIGHEST GUST DIRECTION    NW (320)
  AVERAGE WIND SPEED     6.2


SKY COVER
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  THUNDERSTORM
  HEAVY RAIN
  LIGHT RAIN
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90           3:00 AM
 LOWEST     51           8:00 PM
 AVERAGE    71

..........................................................


THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   83        98      1983
 MINIMUM TEMPERATURE (F)   66        44      1883


SUNRISE AND SUNSET
SEPTEMBER 10 2021.....SUNRISE   6:45 AM EDT   SUNSET   7:24 PM EDT
SEPTEMBER 11 2021.....SUNRISE   6:46 AM EDT   SUNSET   7:22 PM EDT


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




$$
National Weather Service National Headquarters
