240
CDUS45 KRIW 150728
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT SAT AUG 15 2026
...............................
..THE RIVERTON WY CLIMATE SUMMARY FOR AUGUST 14 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1995 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 81 2:16 PM 99 2003 86 -5 92
MINIMUM 55 5:45 AM 42 2005 54 1 58
AVERAGE 68 70 -2 75
PRECIPITATION (IN)
YESTERDAY 0.00 0.40 0.01 -0.01 T
MONTH TO DATE 0.16 0.20 -0.04 T
SINCE JUN 1 1.02 1.68 -0.66 1.21
SINCE JAN 1 2.45 6.14 -3.69 5.73
SNOWFALL (IN)
YESTERDAY 0.0 0.0 202 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 1 1 2
SINCE JUN 1 72 126 -54 80
SINCE JUL 1 2 11 -9 2
COOLING
YESTERDAY 3 6 -3 10
MONTH TO DATE 132 99 33 99
SINCE JUN 1 572 390 182 484
SINCE JAN 1 595 398 197 490
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WIND (MPH)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 7.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1:00 AM
LOWEST 31 6:00 PM
AVERAGE 66
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THE RIVERTON WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 86 95 2003
2015
MINIMUM TEMPERATURE (F) 54 45 2009
SUNRISE AND SUNSET
AUGUST 15 2026........SUNRISE 6:20 AM MDT SUNSET 8:16 PM MDT
AUGUST 16 2026........SUNRISE 6:21 AM MDT SUNSET 8:14 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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