245
CDUS45 KRIW 270729
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
129 AM MDT WED MAY 27 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR MAY 26 2026
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)
YESTERDAY
MAXIMUM 76 1:23 PM 91 2006 71 5 71
MINIMUM 44 4:46 AM 29 1950 41 3 44
1989
AVERAGE 60 56 4
PRECIPITATION (IN)
YESTERDAY 0.08 0.96 1997 0.07 0.01 0.00
MONTH TO DATE 1.67 1.87 -0.20 1.00
SINCE MAR 1 3.11 4.12 -1.01 3.92
SINCE JAN 1 3.65 5.17 -1.52 4.64
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2021 0.0 0.0 0.0
MONTH TO DATE 2.5 2.5 0.0 0.3
SINCE MAR 1 13.9 23.3 -9.4 16.0
SINCE JUL 1 29.6 71.6 -42.0 26.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 5 9 -4 7
MONTH TO DATE 353 368 -15 335
SINCE MAR 1 1559 1957 -398 1884
SINCE JUL 1 5736 7319 -1583 6899
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE MAR 1 0 0 0 0
SINCE JAN 1 0 0 0 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION SE (120)
HIGHEST GUST SPEED 44 HIGHEST GUST DIRECTION SE (120)
AVERAGE WIND SPEED 6.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
RAIN
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 3:00 AM
LOWEST 32 2:00 PM
AVERAGE 59
......................................................
THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 91 1969
MINIMUM TEMPERATURE (F) 41 30 1950
SUNRISE AND SUNSET
MAY 27 2026...........SUNRISE 5:33 AM MDT SUNSET 8:34 PM MDT
MAY 28 2026...........SUNRISE 5:32 AM MDT SUNSET 8:35 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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