883
CDUS45 KRIW 260734
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
134 AM MDT FRI SEP 26 2025
...............................
..THE RIVERTON WY CLIMATE SUMMARY FOR SEPTEMBER 25 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 80 3:45 PM 90 2024 69 11 90
MINIMUM 45 6:30 AM 25 2000 41 4 50
AVERAGE 63 55 8 70
PRECIPITATION (IN)
YESTERDAY 0.00 0.11 0.03 -0.03 0.00
MONTH TO DATE 0.99 0.60 0.39 0.07
SINCE SEP 1 0.99 0.60 0.39 0.07
SINCE JAN 1 7.24 6.96 0.28 5.50
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2020 0.0
MONTH TO DATE 0.0 0.0
SINCE SEP 1 0.0 0.0
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 2 10 -8 0
MONTH TO DATE 85 146 -61 77
SINCE SEP 1 85 146 -61 77
SINCE JUL 1 88 182 -94 95
COOLING
YESTERDAY 0 0 0 5
MONTH TO DATE 37 28 9 52
SINCE SEP 1 37 28 9 52
SINCE JAN 1 611 496 115 594
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WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION NE (40)
AVERAGE WIND SPEED 6.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 7:00 AM
LOWEST 26 4:00 PM
AVERAGE 61
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THE RIVERTON WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 89 2015
MINIMUM TEMPERATURE (F) 40 24 1996
SUNRISE AND SUNSET
SEPTEMBER 26 2025.....SUNRISE 7:06 AM MDT SUNSET 7:03 PM MDT
SEPTEMBER 27 2025.....SUNRISE 7:07 AM MDT SUNSET 7:01 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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