Climatological Report (Daily)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
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802
CDUS45 KRIW 010728
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT MON SEP 01 2025
...................................
...THE RIVERTON WY CLIMATE SUMMARY FOR AUGUST 31 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 82 MM 92 1996 81 1 87
2011
2022
MINIMUM 49 MM 36 2020 50 -1 51
AVERAGE 66 65 1 69
PRECIPITATION (IN)
YESTERDAY 0.00 0.05 0.01 -0.01 0.00
MONTH TO DATE 0.52 0.42 0.10 0.32
SINCE JUN 1 1.73 1.90 -0.17 0.79
SINCE JAN 1 6.25 6.36 -0.11 5.43
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 2 -2 0
MONTH TO DATE 3 24 -21 11
SINCE JUN 1 81 149 -68 51
SINCE JUL 1 3 34 -31 18
COOLING
YESTERDAY 1 3 -2 4
MONTH TO DATE 183 169 14 187
SINCE JUN 1 568 460 108 542
SINCE JAN 1 574 468 106 542
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 7.2
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 86 5:00 AM
LOWEST 16 2:00 PM
AVERAGE 51
..........................................................
THE RIVERTON WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 97 2022
MINIMUM TEMPERATURE (F) 50 38 2008
2020
SUNRISE AND SUNSET
SEPTEMBER 1 2025.....SUNRISE 6:39 AM MDT SUNSET 7:48 PM MDT
SEPTEMBER 2 2025.....SUNRISE 6:40 AM MDT SUNSET 7:46 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$