748
CDUS45 KRIW 150045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT SUN SEP 14 2025
...............................
..THE CASPER WY CLIMATE SUMMARY FOR SEPTEMBER 14 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 79 1:31 PM 92 1948 77 2 83
MINIMUM 50 6:02 AM 28 1961 43 7 30
AVERAGE 65 60 5 57
PRECIPITATION (IN)
TODAY 0.00 0.52 1982 0.02 -0.02 0.00
MONTH TO DATE 0.01 0.35 -0.34 0.17
SINCE SEP 1 0.01 0.35 -0.34 0.17
SINCE JAN 1 7.32 9.18 -1.86 7.15
SNOWFALL (IN)
TODAY MM 0.0 MM 0.0
MONTH TO DATE 0.0 0.3 -0.3 0.0
SINCE SEP 1 0.0 0.3 -0.3 0.0
SINCE JUL 1 0.0 0.3 -0.3 0.0
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 0 6 -6 8
MONTH TO DATE 39 61 -22 22
SINCE SEP 1 39 61 -22 22
SINCE JUL 1 49 106 -57 60
COOLING
TODAY 0 1 -1 0
MONTH TO DATE 15 24 -9 51
SINCE SEP 1 15 24 -9 51
SINCE JAN 1 465 436 29 526
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 11.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 74
LOWEST 18
AVERAGE 46
......................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 92 2000
MINIMUM TEMPERATURE (F) 43 28 1947
1965
SUNRISE AND SUNSET
SEPTEMBER 14 2025.....SUNRISE 6:45 AM MDT SUNSET 7:17 PM MDT
SEPTEMBER 15 2025.....SUNRISE 6:46 AM MDT SUNSET 7:15 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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