362
CDUS45 KRIW 170736
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
136 AM MDT WED SEP 17 2025
...............................
..THE RIVERTON WY CLIMATE SUMMARY FOR SEPTEMBER 16 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 68 4:10 PM 93 2000 74 -6 84
MINIMUM 40 6:36 AM 35 2006 44 -4 46
AVERAGE 54 59 -5 65
PRECIPITATION (IN)
YESTERDAY 0.01 0.10 0.03 -0.02 0.00
MONTH TO DATE 0.08 0.32 -0.24 0.06
SINCE SEP 1 0.08 0.32 -0.24 0.06
SINCE JAN 1 6.33 6.68 -0.35 5.49
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 11 6 5 0
MONTH TO DATE 37 70 -33 24
SINCE SEP 1 37 70 -33 24
SINCE JUL 1 40 106 -66 42
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 36 26 10 47
SINCE SEP 1 36 26 10 47
SINCE JAN 1 610 494 116 589
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 7.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 5:00 AM
LOWEST 28 4:00 PM
AVERAGE 57
......................................................
THE RIVERTON WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 85 2004
2018
MINIMUM TEMPERATURE (F) 44 34 1996
SUNRISE AND SUNSET
SEPTEMBER 17 2025.....SUNRISE 6:56 AM MDT SUNSET 7:19 PM MDT
SEPTEMBER 18 2025.....SUNRISE 6:57 AM MDT SUNSET 7:18 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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