Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS45 KRIW 180728
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT SAT OCT 18 2025
...................................
...THE CASPER WY CLIMATE SUMMARY FOR OCTOBER 17 2025...
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)
YESTERDAY
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
PRECIPITATION (IN)
YESTERDAY 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)
YESTERDAY MM 4.3 1996 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
YESTERDAY 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
YESTERDAY 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 19.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 12:00 AM
LOWEST 40 3:00 PM
AVERAGE 63
..........................................................
THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 59 78 2003
MINIMUM TEMPERATURE (F) 30 16 2006
SUNRISE AND SUNSET
OCTOBER 18 2025.......SUNRISE 7:23 AM MDT SUNSET 6:18 PM MDT
OCTOBER 19 2025.......SUNRISE 7:25 AM MDT SUNSET 6:16 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$