Climatological Report (Daily)
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000
CDUS45 KRIW 150730
CLIGEY


CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1229 AM MST FRI DEC 15 2017


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

...THE GREYBULL WY CLIMATE SUMMARY FOR DECEMBER 14 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         45    306 PM  52    2003  29     16       18
  MINIMUM         21    746 AM -19    2008   6     15        3
  AVERAGE         33                        17     16       11

PRECIPITATION (IN)
  YESTERDAY        0.00          T    2011   0.00   0.00     0.00
                                      2011
                                      2015
  MONTH TO DATE    0.00                      0.15  -0.15     0.01
  SINCE DEC 1      0.00                      0.15  -0.15     0.01
  SINCE JAN 1      4.19                      7.38  -3.19     7.06

DEGREE DAYS
 HEATING
  YESTERDAY       32                        48    -16       54
  MONTH TO DATE  511                       640   -129      648
  SINCE DEC 1    511                       640   -129      648
  SINCE JUL 1   2288                      2497   -209     2023

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    824                       669    155      887
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     N (340)
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION    NW (330)
  AVERAGE WIND SPEED     8.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.1


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    84           800 AM
 LOWEST     37           100 PM
 AVERAGE    61

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


THE GREYBULL WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   28        57      2006
 MINIMUM TEMPERATURE (F)    6       -21      2008


SUNRISE AND SUNSET
DECEMBER 15 2017......SUNRISE   742 AM MST   SUNSET   433 PM MST
DECEMBER 16 2017......SUNRISE   743 AM MST   SUNSET   433 PM MST


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




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