137
CDUS45 KRIW 280730
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
130 AM MDT THU MAY 28 2026
...............................
..THE RIVERTON WY CLIMATE SUMMARY FOR MAY 27 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 83 4:00 PM 87 2014 71 12 76
MINIMUM 59 11:59 PM 35 2012 43 16 47
AVERAGE 71 57 14 62
PRECIPITATION (IN)
YESTERDAY 0.00 1.63 0.06 -0.06 T
MONTH TO DATE 0.57 1.70 -1.13 1.14
SINCE MAR 1 1.14 3.55 -2.41 4.02
SINCE JAN 1 1.41 4.24 -2.83 4.52
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2021 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 0 8 -8 3
MONTH TO DATE 295 344 -49 310
SINCE MAR 1 1420 1903 -483 1800
SINCE JUL 1 5713 7781 -2068 7147
COOLING
YESTERDAY 6 0 6 0
MONTH TO DATE 14 0 14 3
SINCE MAR 1 14 0 14 3
SINCE JAN 1 14 0 14 3
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION E (100)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION E (110)
AVERAGE WIND SPEED 10.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 55 3:00 AM
LOWEST 18 2:00 PM
AVERAGE 37
......................................................
THE RIVERTON WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 90 2003
MINIMUM TEMPERATURE (F) 43 35 2011
SUNRISE AND SUNSET
MAY 28 2026...........SUNRISE 5:39 AM MDT SUNSET 8:43 PM MDT
MAY 29 2026...........SUNRISE 5:39 AM MDT SUNSET 8:44 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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