Climatological Report (Daily)
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044
CDUS45 KRIW 180045
CLICPR

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT FRI OCT 17 2025

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

...THE CASPER WY CLIMATE SUMMARY FOR OCTOBER 17 2025...
VALID TODAY AS OF 0600 PM LOCAL TIME.

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1939 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         58   3:31 PM  79    2003  59     -1       69
  MINIMUM         38   4:40 AM  19    1968  30      8       37
                                      1996
                                      2012
  AVERAGE         48                        45      3       53

PRECIPITATION (IN)
  TODAY            T             0.31 1971   0.04  -0.04     0.25
  MONTH TO DATE    1.32                      0.74   0.58     0.25
  SINCE SEP 1      3.87                      1.69   2.18     0.49
  SINCE JAN 1     11.18                     10.52   0.66     7.47

SNOWFALL (IN)
  TODAY           MM                         0.3   MM        0.0
  MONTH TO DATE    0.0                       3.4   -3.4      0.0
  SINCE SEP 1      0.0                       4.9   -4.9      0.0
  SINCE JUL 1      0.0                       4.9   -4.9      0.0
  SNOW DEPTH      MM

DEGREE DAYS
 HEATING
  TODAY           17                        20     -3       12
  MONTH TO DATE  239                       289    -50      166
  SINCE SEP 1    352                       503   -151      268
  SINCE JUL 1    362                       548   -186      306

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE SEP 1     17                        30    -13       63
  SINCE JAN 1    467                       442     25      538
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    28   HIGHEST WIND DIRECTION    SW (220)
  HIGHEST GUST SPEED    37   HIGHEST GUST DIRECTION    SW (220)
  AVERAGE WIND SPEED    20.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.0


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86
 LOWEST     40
 AVERAGE    63

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


THE CASPER WY CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   59        78      2003
 MINIMUM TEMPERATURE (F)   30        16      2006


SUNRISE AND SUNSET
OCTOBER 17 2025.......SUNRISE   7:22 AM MDT   SUNSET   6:19 PM MDT
OCTOBER 18 2025.......SUNRISE   7:23 AM MDT   SUNSET   6:18 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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