333
CDUS45 KRIW 290045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT THU MAY 28 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR MAY 28 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 82 4:19 PM 92 2014 72 10 63
MINIMUM 49 3:07 AM 28 1947 41 8 47
AVERAGE 66 56 10 55
PRECIPITATION (IN)
TODAY 0.00 0.90 1975 0.07 -0.07 0.20
MONTH TO DATE 1.67 2.01 -0.34 1.28
SINCE MAR 1 3.11 4.26 -1.15 4.20
SINCE JAN 1 3.65 5.31 -1.66 4.92
SNOWFALL (IN)
TODAY MM 0.0 MM 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 MM
DEGREE DAYS
HEATING
TODAY 0 9 -9 10
MONTH TO DATE 356 386 -30 355
SINCE MAR 1 1562 1975 -413 1904
SINCE JUL 1 5739 7337 -1598 6919
COOLING
TODAY 1 0 1 0
MONTH TO DATE 1 0 1 0
SINCE MAR 1 1 0 1 0
SINCE JAN 1 1 0 1 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 5.6
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 89
LOWEST 25
AVERAGE 57
......................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 95 2003
MINIMUM TEMPERATURE (F) 41 29 1947
SUNRISE AND SUNSET
MAY 28 2026...........SUNRISE 5:32 AM MDT SUNSET 8:35 PM MDT
MAY 29 2026...........SUNRISE 5:31 AM MDT SUNSET 8:36 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page