Climatological Report (Daily)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
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CDUS45 KRIW 180733
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
133 AM MDT MON AUG 18 2025
...................................
...THE RIVERTON WY CLIMATE SUMMARY FOR AUGUST 17 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 86 3:01 PM 95 2013 86 0 92
2020
MINIMUM 58 2:57 AM 41 2009 54 4 53
AVERAGE 72 70 2 73
PRECIPITATION (IN)
YESTERDAY 0.00 0.40 0.02 -0.02 0.00
MONTH TO DATE 0.01 0.24 -0.23 0.22
SINCE JUN 1 1.22 1.72 -0.50 0.69
SINCE JAN 1 5.74 6.18 -0.44 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 4 -2 1
SINCE JUN 1 80 129 -49 41
SINCE JUL 1 2 14 -12 8
COOLING
YESTERDAY 7 5 2 8
MONTH TO DATE 127 116 11 110
SINCE JUN 1 512 407 105 465
SINCE JAN 1 518 415 103 465
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 33 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 10.3
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 50 4:00 AM
LOWEST 18 5:00 PM
AVERAGE 34
..........................................................
THE RIVERTON WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 96 2010
MINIMUM TEMPERATURE (F) 53 44 2015
SUNRISE AND SUNSET
AUGUST 18 2025........SUNRISE 6:23 AM MDT SUNSET 8:11 PM MDT
AUGUST 19 2025........SUNRISE 6:24 AM MDT SUNSET 8:09 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$