AFOS product CLIDCA
Dates interpreted at 00:00 UTC
Download date range (UTC midnight)
Bulk Download Bulk Download
787 
CDUS41 KLWX 200530
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
129 AM EDT THU SEP 20 2012


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR SEPTEMBER 19 2012...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2012


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         72    410 PM  96    1895  78     -6       70
  MINIMUM         59   1145 PM  44    1916  61     -2       60
  AVERAGE         66                        70     -4       65

PRECIPITATION (IN)
  YESTERDAY        0.00          1.23 1875   0.14  -0.14     0.00
  MONTH TO DATE    3.51                      2.29   1.22     7.14
  SINCE SEP 1      3.51                      2.29   1.22     7.14
  SINCE JAN 1     22.22                     28.69  -6.47    34.44

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                         1     -1        0
  MONTH TO DATE    0                         4     -4       14
  SINCE SEP 1      0                         4     -4       14
  SINCE JUL 1      0                         4     -4       14

 COOLING
  YESTERDAY        1                         6     -5        0
  MONTH TO DATE  183                       159     24      135
  SINCE SEP 1    183                       159     24      135
  SINCE JAN 1   1884                      1470    414     1837
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     N (340)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION     N (340)
  AVERAGE WIND SPEED     8.8


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    67           100 AM
 LOWEST     35           300 PM
 AVERAGE    51

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


THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   78        94      1895
 MINIMUM TEMPERATURE (F)   61        41      1916


SUNRISE AND SUNSET
SEPTEMBER 20 2012.....SUNRISE   654 AM EDT   SUNSET   708 PM EDT
SEPTEMBER 21 2012.....SUNRISE   655 AM EDT   SUNSET   706 PM EDT


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




$$