Climatological Report (Daily)
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705
CDUS45 KRIW 190045
CLICPR

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT TUE AUG 18 2026

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

...THE CASPER WY CLIMATE SUMMARY FOR AUGUST 18 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         79  12:00 PM  99    1986  87     -8       91
  MINIMUM         57   2:06 AM  37    2009  51      6       52
  AVERAGE         68                        69     -1       72

PRECIPITATION (IN)
  TODAY            0.01          0.48 1978   0.02  -0.01     0.00
  MONTH TO DATE    1.86                      0.51   1.35     0.23
  SINCE JUN 1      2.54                      3.04  -0.50     1.90
  SINCE JAN 1      6.19                      8.55  -2.36     6.82

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                         1     -1        0
  MONTH TO DATE    5                         6     -1        4
  SINCE JUN 1     97                       146    -49      100
  SINCE JUL 1      5                        20    -15        9

 COOLING
  TODAY            3                         5     -2        7
  MONTH TO DATE  121                       109     12      103
  SINCE JUN 1    498                       360    138      405
  SINCE JAN 1    499                       364    135      405
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    24   HIGHEST WIND DIRECTION    NW (330)
  HIGHEST GUST SPEED    33   HIGHEST GUST DIRECTION    NW (330)
  AVERAGE WIND SPEED     9.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    84
 LOWEST     35
 AVERAGE    60

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


THE CASPER WY CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   86        97      2019
 MINIMUM TEMPERATURE (F)   51        37      2002


SUNRISE AND SUNSET
AUGUST 18 2026........SUNRISE   6:15 AM MDT   SUNSET   8:03 PM MDT
AUGUST 19 2026........SUNRISE   6:16 AM MDT   SUNSET   8:02 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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