297
CDUS45 KRIW 180728
CLIRKS
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT TUE AUG 18 2026
...............................
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR AUGUST 17 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 87 3:52 PM 92 2020 82 5 83
MINIMUM 51 5:35 AM 35 1968 53 -2 56
AVERAGE 69 67 2
PRECIPITATION (IN)
YESTERDAY T 0.29 1968 0.02 -0.02 0.02
MONTH TO DATE 0.28 0.31 -0.03 0.03
SINCE JUN 1 0.64 1.48 -0.84 0.43
SINCE JAN 1 2.48 4.99 -2.51 2.74
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 1 8 -7 10
SINCE JUN 1 112 188 -76 79
SINCE JUL 1 5 29 -24 10
COOLING
YESTERDAY 4 3 1 5
MONTH TO DATE 117 80 37 83
SINCE JUN 1 462 278 184 365
SINCE JAN 1 464 280 184 369
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WIND (MPH)
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 6.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 56 6:00 AM
LOWEST 16 4:00 PM
AVERAGE 36
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THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 94 2020
MINIMUM TEMPERATURE (F) 53 39 1978
SUNRISE AND SUNSET
AUGUST 18 2026........SUNRISE 6:28 AM MDT SUNSET 8:11 PM MDT
AUGUST 19 2026........SUNRISE 6:29 AM MDT SUNSET 8:10 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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