587
CDUS45 KRIW 190730
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
130 AM MDT FRI SEP 19 2025
...............................
..THE RIVERTON WY CLIMATE SUMMARY FOR SEPTEMBER 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 75 4:36 PM 90 2014 73 2 72
MINIMUM 41 6:18 AM 28 2003 44 -3 39
AVERAGE 58 58 0 56
PRECIPITATION (IN)
YESTERDAY 0.00 0.26 0.03 -0.03 0.00
MONTH TO DATE 0.08 0.37 -0.29 0.07
SINCE SEP 1 0.08 0.37 -0.29 0.07
SINCE JAN 1 6.33 6.73 -0.40 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 7 7 0 9
MONTH TO DATE 52 84 -32 41
SINCE SEP 1 52 84 -32 41
SINCE JUL 1 55 120 -65 59
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 36 28 8 47
SINCE SEP 1 36 28 8 47
SINCE JAN 1 610 496 114 589
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION SE (120)
AVERAGE WIND SPEED 6.0
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 100 6:00 AM
LOWEST 20 4:00 PM
AVERAGE 60
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THE RIVERTON WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 90 2010
MINIMUM TEMPERATURE (F) 43 32 1996
SUNRISE AND SUNSET
SEPTEMBER 19 2025.....SUNRISE 6:58 AM MDT SUNSET 7:16 PM MDT
SEPTEMBER 20 2025.....SUNRISE 6:59 AM MDT SUNSET 7:14 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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