Climatological Report (Daily)
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CDUS45 KRIW 210757
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CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
157 AM MDT TUE MAY 21 2013


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

...THE ROCK SPRINGS WY CLIMATE SUMMARY FOR MAY 20 2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1948 TO 2013


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         51        MM  86    1954  65    -14       73
  MINIMUM         38        MM  27    2003  39     -1       41
  AVERAGE         45                        52     -7       57

PRECIPITATION (IN)
  YESTERDAY        0.31          1.09 1975   0.04   0.27     0.00
  MONTH TO DATE    0.56                      0.79  -0.23     0.21
  SINCE MAR 1      0.56                      2.38  -1.82     0.83
  SINCE JAN 1      0.56                      3.31  -2.75     1.39

DEGREE DAYS
 HEATING
  YESTERDAY       20                        13      7        8
  MONTH TO DATE  267                       319    -52      227
  SINCE MAR 1   1999                      1999      0     1540
  SINCE JUL 1   7480                      7851   -371     6873

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    1                         0      1        0
  SINCE MAR 1      1                         0      1        0
  SINCE JAN 1      1                         0      1        0
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION     W (270)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION     N (20)
  AVERAGE WIND SPEED     7.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  THUNDERSTORM
  HEAVY RAIN
  RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           500 AM
 LOWEST     66           600 PM
 AVERAGE    83

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


THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   66        83      2012
 MINIMUM TEMPERATURE (F)   39        25      2001


SUNRISE AND SUNSET
MAY 21 2013...........SUNRISE   551 AM MDT   SUNSET   835 PM MDT
MAY 22 2013...........SUNRISE   550 AM MDT   SUNSET   836 PM MDT


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




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