Climatological Report (Daily)
Issued by NWS Riverton, WY

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CDUS45 KRIW 180741
CLIRIW


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


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

...THE RIVERTON WY CLIMATE SUMMARY FOR DECEMBER 17 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1995 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         31    336 PM  58    2013  31      0        0
  MINIMUM         13    844 PM -23    2016   7      6      -23
  AVERAGE         22                        19      3      -11

PRECIPITATION (IN)
  YESTERDAY        T             0.06 2002   0.01  -0.01     0.00
  MONTH TO DATE    0.44                      0.15   0.29     0.24
  SINCE DEC 1      0.44                      0.15   0.29     0.24
  SINCE JAN 1     14.77                      9.26   5.51    13.88

SNOWFALL (IN)
  YESTERDAY        0.2                                       0.0
  MONTH TO DATE    6.6                                       5.0
  SINCE DEC 1      6.6                                       5.0
  SINCE JUL 1     13.9                                       9.4
  SNOW DEPTH       3

DEGREE DAYS
 HEATING
  YESTERDAY       43                        46     -3       76
  MONTH TO DATE  557                       756   -199      815
  SINCE DEC 1    557                       756   -199      815
  SINCE JUL 1   2391                      2672   -281     2411

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    547                       494     53      605
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION     W (280)
  AVERAGE WIND SPEED     7.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT SNOW
  FOG
  FOG W/VISIBILITY <= 1/4 MILE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          1200 AM
 LOWEST     63           400 PM
 AVERAGE    82

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


THE RIVERTON WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   31        59      2013
 MINIMUM TEMPERATURE (F)    7       -18      2016


SUNRISE AND SUNSET
DECEMBER 18 2017......SUNRISE   740 AM MST   SUNSET   441 PM MST
DECEMBER 19 2017......SUNRISE   741 AM MST   SUNSET   441 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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