978
CDUS45 KRIW 190731
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
131 AM MDT TUE AUG 19 2025
...............................
..THE RIVERTON WY CLIMATE SUMMARY FOR AUGUST 18 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1995 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 90 4:52 PM 96 2010 85 5 91
MINIMUM 56 5:11 AM 44 2015 53 3 60
AVERAGE 73 69 4 76
PRECIPITATION (IN)
YESTERDAY 0.00 0.65 0.01 -0.01 0.00
MONTH TO DATE 0.01 0.25 -0.24 0.22
SINCE JUN 1 1.22 1.73 -0.51 0.69
SINCE JAN 1 5.74 6.19 -0.45 5.33
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2020 0.0
MONTH TO DATE 0.0 0.0
SINCE JUN 1 0.0 0.0
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 2 5 -3 1
SINCE JUN 1 80 130 -50 41
SINCE JUL 1 2 15 -13 8
COOLING
YESTERDAY 8 5 3 11
MONTH TO DATE 135 121 14 121
SINCE JUN 1 520 412 108 476
SINCE JAN 1 526 420 106 476
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WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SE (130)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SE (120)
AVERAGE WIND SPEED 7.6
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 57 4:00 AM
LOWEST 10 3:00 PM
AVERAGE 34
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THE RIVERTON WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 96 2013
2019
MINIMUM TEMPERATURE (F) 53 43 1996
2002
SUNRISE AND SUNSET
AUGUST 19 2025........SUNRISE 6:24 AM MDT SUNSET 8:09 PM MDT
AUGUST 20 2025........SUNRISE 6:26 AM MDT SUNSET 8:08 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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