868
CDUS45 KRIW 100728
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT SUN MAY 10 2026
...............................
..THE RIVERTON WY CLIMATE SUMMARY FOR MAY 9 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 61 12:51 PM 81 2012 64 -3 77
MINIMUM 39 11:58 PM 19 2002 37 2 45
AVERAGE 50 51 -1 61
PRECIPITATION (IN)
YESTERDAY T 0.28 0.06 -0.06 0.00
MONTH TO DATE 0.09 0.55 -0.46 0.53
SINCE MAR 1 0.66 2.40 -1.74 3.41
SINCE JAN 1 0.93 3.09 -2.16 3.91
SNOWFALL (IN)
YESTERDAY T 0.2 2008 0.0
2015
MONTH TO DATE 0.5 0.9
SINCE MAR 1 8.1 18.2
SINCE JUL 1 16.1 30.7
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 15 14 1 4
MONTH TO DATE 131 144 -13 128
SINCE MAR 1 1256 1703 -447 1618
SINCE JUL 1 5549 7581 -2032 6965
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 37 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 46 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 9.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 79 11:00 PM
LOWEST 36 1:00 PM
AVERAGE 58
......................................................
THE RIVERTON WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 64 81 2012
2025
MINIMUM TEMPERATURE (F) 38 26 2006
SUNRISE AND SUNSET
MAY 10 2026...........SUNRISE 5:56 AM MDT SUNSET 8:25 PM MDT
MAY 11 2026...........SUNRISE 5:55 AM MDT SUNSET 8:26 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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