718
CDUS45 KRIW 190730
CLIRKS
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
130 AM MDT WED AUG 19 2026
...............................
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR AUGUST 18 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1948 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 80 2:43 PM 94 2020 81 -1 87
MINIMUM 57 5:48 AM 39 1978 53 4 50
AVERAGE 69 67 2
PRECIPITATION (IN)
YESTERDAY 0.22 0.51 1996 0.01 0.21 0.00
MONTH TO DATE 0.50 0.32 0.18 0.03
SINCE JUN 1 0.86 1.49 -0.63 0.43
SINCE JAN 1 2.70 5.00 -2.30 2.74
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 1 9 -8 10
SINCE JUN 1 112 189 -77 79
SINCE JUL 1 5 30 -25 10
COOLING
YESTERDAY 4 3 1 4
MONTH TO DATE 121 83 38 87
SINCE JUN 1 466 281 185 369
SINCE JAN 1 468 283 185 373
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WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 6.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 78 3:00 PM
LOWEST 32 2:00 PM
AVERAGE 55
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THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 91 2025
MINIMUM TEMPERATURE (F) 53 38 1978
SUNRISE AND SUNSET
AUGUST 19 2026........SUNRISE 6:29 AM MDT SUNSET 8:10 PM MDT
AUGUST 20 2026........SUNRISE 6:30 AM MDT SUNSET 8:08 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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