649
CDUS45 KRIW 150734
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
134 AM MDT FRI MAY 15 2026
...............................
..THE RIVERTON WY CLIMATE SUMMARY FOR MAY 14 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 77 2:23 PM 86 2013 66 11 55
MINIMUM 50 11:59 PM 28 2014 39 11 37
AVERAGE 64 52 12 46
PRECIPITATION (IN)
YESTERDAY 0.00 0.43 0.06 -0.06 0.04
MONTH TO DATE 0.09 0.88 -0.79 0.87
SINCE MAR 1 0.66 2.73 -2.07 3.75
SINCE JAN 1 0.93 3.42 -2.49 4.25
SNOWFALL (IN)
YESTERDAY 0.0 T 2015 0.0
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 1 13 -12 19
MONTH TO DATE 142 211 -69 159
SINCE MAR 1 1267 1770 -503 1649
SINCE JUL 1 5560 7648 -2088 6996
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 8 0 8 3
SINCE MAR 1 8 0 8 3
SINCE JAN 1 8 0 8 3
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 31 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 42 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 17.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 46 12:00 AM
LOWEST 6 3:00 PM
AVERAGE 26
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THE RIVERTON WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 84 2012
MINIMUM TEMPERATURE (F) 39 33 2004
SUNRISE AND SUNSET
MAY 15 2026...........SUNRISE 5:50 AM MDT SUNSET 8:31 PM MDT
MAY 16 2026...........SUNRISE 5:49 AM MDT SUNSET 8:32 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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