Climatological Report (Daily)
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585
CDUS45 KRIW 100045
CLICPR

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT SUN AUG 09 2026

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

...THE CASPER WY CLIMATE SUMMARY FOR AUGUST 9 2026...
VALID TODAY AS OF 0600 PM LOCAL TIME.

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1939 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         98   2:53 PM  99    1992  89      9       82
  MINIMUM         52   5:16 AM  39    2025  53     -1       39
  AVERAGE         75                        71      4       61

PRECIPITATION (IN)
  TODAY            T             0.77 1974   0.03  -0.03     0.00
  MONTH TO DATE    T                         0.29  -0.29     0.22
  SINCE JUN 1      0.68                      2.82  -2.14     1.89
  SINCE JAN 1      4.33                      8.33  -4.00     6.81

SNOWFALL (IN)
  TODAY           MM                         0.0   MM        0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE JUN 1      0.0                       0.1   -0.1      0.0
  SINCE JUL 1      0.0                       0.0    0.0      0.0
  SNOW DEPTH      MM

DEGREE DAYS
 HEATING
  TODAY            0                         0      0        4
  MONTH TO DATE    3                         0      3        4
  SINCE JUN 1     95                       140    -45      100
  SINCE JUL 1      3                        14    -11        9

 COOLING
  TODAY           10                         6      4        0
  MONTH TO DATE   69                        60      9       49
  SINCE JUN 1    446                       311    135      351
  SINCE JAN 1    447                       315    132      351
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    29   HIGHEST WIND DIRECTION    NW (310)
  HIGHEST GUST SPEED    40   HIGHEST GUST DIRECTION     W (270)
  AVERAGE WIND SPEED    11.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.0


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    38
 LOWEST      8
 AVERAGE    23

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


THE CASPER WY CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   88       101      2022
 MINIMUM TEMPERATURE (F)   53        39      2002


SUNRISE AND SUNSET
AUGUST  9 2026........SUNRISE   6:06 AM MDT   SUNSET   8:16 PM MDT
AUGUST 10 2026........SUNRISE   6:07 AM MDT   SUNSET   8:15 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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