531
CDUS45 KRIW 210727
CLIRKS
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT THU MAY 21 2026
...............................
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR MAY 20 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 59 4:18 PM 86 1954 65 -6 59
MINIMUM 29 5:13 AM 26 2022 40 -11 32
AVERAGE 44 52 -8
PRECIPITATION (IN)
YESTERDAY 0.00 1.09 1975 0.05 -0.05 T
MONTH TO DATE 0.14 0.85 -0.71 0.31
SINCE MAR 1 1.42 2.34 -0.92 2.02
SINCE JAN 1 1.58 3.09 -1.51 2.28
DEGREE DAYS
HEATING
YESTERDAY 21 13 8 19
MONTH TO DATE 302 324 -22 277
SINCE MAR 1 1564 1997 -433 1708
SINCE JUL 1 5946 7787 -1841 6929
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 2 0 2 1
SINCE MAR 1 2 0 2 1
SINCE JAN 1 2 0 2 1
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 7.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 66 6:00 AM
LOWEST 22 4:00 PM
AVERAGE 44
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THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 65 83 2012
MINIMUM TEMPERATURE (F) 40 22 2022
SUNRISE AND SUNSET
MAY 21 2026...........SUNRISE 5:51 AM MDT SUNSET 8:35 PM MDT
MAY 22 2026...........SUNRISE 5:51 AM MDT SUNSET 8:36 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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