478
CDUS45 KRIW 210045
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT MON APR 20 2026
...............................
..THE RIVERTON WY CLIMATE SUMMARY FOR APRIL 20 2026
VALID TODAY AS OF 0600 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1995 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 77R 4:53 PM 74 2019 58 19 58
MINIMUM 38 1:34 AM 10 2021 31 7 30
AVERAGE 58 44 14 44
PRECIPITATION (IN)
TODAY 0.00 0.61 2001 0.05 -0.05 T
MONTH TO DATE 0.03 0.73 -0.70 0.55
SINCE MAR 1 0.18 1.38 -1.20 2.27
SINCE JAN 1 0.45 2.07 -1.62 2.77
SNOWFALL (IN)
TODAY MM 0.0
MONTH TO DATE 0.1 4.0
SINCE MAR 1 3.4 17.3
SINCE JUL 1 11.4 29.8
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 7 21 -14 21
MONTH TO DATE 360 454 -94 457
SINCE MAR 1 903 1366 -463 1297
SINCE JUL 1 5196 7244 -2048 6644
COOLING
TODAY 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 24 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 7.6
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 28
LOWEST 5
AVERAGE 17
......................................................
THE RIVERTON WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 58 74 2009
MINIMUM TEMPERATURE (F) 31 17 2008
SUNRISE AND SUNSET
APRIL 20 2026.........SUNRISE 6:24 AM MDT SUNSET 8:02 PM MDT
APRIL 21 2026.........SUNRISE 6:22 AM MDT SUNSET 8:04 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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