Climatological Report (Daily)
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000
CDUS45 KRIW 140740
CLIGEY


CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1240 AM MST THU DEC 14 2017


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

...THE GREYBULL WY CLIMATE SUMMARY FOR DECEMBER 13 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         41    312 PM  50    2014  29     12       22
  MINIMUM         23    721 AM -10    2000   6     17        0
  AVERAGE         32                        18     14       11

PRECIPITATION (IN)
  YESTERDAY        0.00          0.04 1999   0.01  -0.01     0.00
  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       33                        47    -14       54
  MONTH TO DATE  479                       592   -113      594
  SINCE DEC 1    479                       592   -113      594
  SINCE JUL 1   2256                      2449   -193     1969

 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    25   HIGHEST WIND DIRECTION    NW (310)
  HIGHEST GUST SPEED    30   HIGHEST GUST DIRECTION    NW (310)
  AVERAGE WIND SPEED    10.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    89           500 PM
 LOWEST     30           400 AM
 AVERAGE    60

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


THE GREYBULL WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   29        52      2003
 MINIMUM TEMPERATURE (F)    6       -19      2008


SUNRISE AND SUNSET
DECEMBER 14 2017......SUNRISE   741 AM MST   SUNSET   433 PM MST
DECEMBER 15 2017......SUNRISE   742 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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