681
CDUS45 KRIW 310730
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
130 AM MDT SUN MAY 31 2026
...............................
..THE RIVERTON WY CLIMATE SUMMARY FOR MAY 30 2026
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)
YESTERDAY
MAXIMUM 72 3:32 PM 90 2002 72 0 83
MINIMUM 52 11:59 PM 32 2011 44 8 52
AVERAGE 62 58 4 68
PRECIPITATION (IN)
YESTERDAY 0.02 0.79 0.05 -0.03 0.00
MONTH TO DATE 0.59 1.86 -1.27 1.14
SINCE MAR 1 1.16 3.71 -2.55 4.02
SINCE JAN 1 1.43 4.40 -2.97 4.52
SNOWFALL (IN)
YESTERDAY 0.0 1.5 2011 0.0
MONTH TO DATE 0.8 0.9
SINCE MAR 1 8.4 18.2
SINCE JUL 1 16.4 30.7
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 3 8 -5 0
MONTH TO DATE 298 368 -70 319
SINCE MAR 1 1423 1927 -504 1809
SINCE JUL 1 5716 7805 -2089 7156
COOLING
YESTERDAY 0 1 -1 3
MONTH TO DATE 23 2 21 6
SINCE MAR 1 23 2 21 6
SINCE JAN 1 23 2 21 6
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WIND (MPH)
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 14.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 4:00 AM
LOWEST 23 2:00 PM
AVERAGE 56
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THE RIVERTON WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 86 1997
MINIMUM TEMPERATURE (F) 44 35 2024
SUNRISE AND SUNSET
MAY 31 2026...........SUNRISE 5:38 AM MDT SUNSET 8:46 PM MDT
JUNE 1 2026..........SUNRISE 5:37 AM MDT SUNSET 8:47 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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