Climatological Report (Daily)
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CDUS45 KRIW 170753
CLICPR


CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1250 AM MST SUN DEC 17 2017


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

...THE CASPER WY CLIMATE SUMMARY FOR DECEMBER 16 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1939 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         39    309 AM  59    1980  33      6       16
  MINIMUM         24   1159 PM -31    1964  13     11       -9
  AVERAGE         32                        23      9        4

PRECIPITATION (IN)
  YESTERDAY        0.23          0.36 2016   0.02   0.21     0.36
  MONTH TO DATE    0.63                      0.26   0.37     0.84
  SINCE DEC 1      0.63                      0.26   0.37     0.84
  SINCE JAN 1     13.36                     12.29   1.07    15.10

SNOWFALL (IN)
  YESTERDAY        1.8                       0.4    1.4      5.2
  MONTH TO DATE    7.2                       5.8    1.4     14.3
  SINCE DEC 1      7.2                       5.8    1.4     14.3
  SINCE JUL 1     16.4                      25.3   -8.9     17.5
  SNOW DEPTH       T

DEGREE DAYS
 HEATING
  YESTERDAY       33                        42     -9       61
  MONTH TO DATE  541                       653   -112      812
  SINCE DEC 1    541                       653   -112      812
  SINCE JUL 1   2285                      2507   -222     2238

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    448                       422     26      451
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION    SW (210)
  HIGHEST GUST SPEED    28   HIGHEST GUST DIRECTION    SW (220)
  AVERAGE WIND SPEED    11.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT SNOW
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92          1000 AM
 LOWEST     33          1200 AM
 AVERAGE    63

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


THE CASPER WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   33        60      1980
 MINIMUM TEMPERATURE (F)   13       -31      1964


SUNRISE AND SUNSET
DECEMBER 17 2017......SUNRISE   731 AM MST   SUNSET   433 PM MST
DECEMBER 18 2017......SUNRISE   732 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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