Climatological Report (Daily)
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CDUS45 KRIW 180741
CLICPR


CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1241 AM MST MON DEC 18 2017


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

...THE CASPER WY CLIMATE SUMMARY FOR DECEMBER 17 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         31    307 PM  60    1980  33     -2        8
  MINIMUM         16    741 AM -31    1964  13      3      -30
  AVERAGE         24                        23      1      -11

PRECIPITATION (IN)
  YESTERDAY        0.02          0.45 1970   0.01   0.01      T
  MONTH TO DATE    0.65                      0.27   0.38     0.84
  SINCE DEC 1      0.65                      0.27   0.38     0.84
  SINCE JAN 1     13.38                     12.30   1.08    15.10

SNOWFALL (IN)
  YESTERDAY        0.3                       0.3    0.0       T
  MONTH TO DATE    7.5                       6.1    1.4     14.3
  SINCE DEC 1      7.5                       6.1    1.4     14.3
  SINCE JUL 1     16.7                      25.6   -8.9     17.5
  SNOW DEPTH       2

DEGREE DAYS
 HEATING
  YESTERDAY       41                        42     -1       76
  MONTH TO DATE  582                       695   -113      888
  SINCE DEC 1    582                       695   -113      888
  SINCE JUL 1   2326                      2549   -223     2314

 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    26   HIGHEST WIND DIRECTION    SW (230)
  HIGHEST GUST SPEED    33   HIGHEST GUST DIRECTION    SW (230)
  AVERAGE WIND SPEED    13.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96           300 AM
 LOWEST     53           300 PM
 AVERAGE    75

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


THE CASPER WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   33        52      1994
 MINIMUM TEMPERATURE (F)   13       -18      1983


SUNRISE AND SUNSET
DECEMBER 18 2017......SUNRISE   732 AM MST   SUNSET   433 PM MST
DECEMBER 19 2017......SUNRISE   733 AM MST   SUNSET   434 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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