823
CDUS45 KRIW 210730
CLIRKS
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
130 AM MDT TUE APR 21 2026
...............................
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR APRIL 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 73 2:16 PM 79 1989 54 19 57
MINIMUM 40 5:37 AM 6 1966 30 10 33
AVERAGE 57 42 15
PRECIPITATION (IN)
YESTERDAY 0.00 1.96 1971 0.03 -0.03 0.00
MONTH TO DATE 0.41 0.56 -0.15 0.26
SINCE MAR 1 1.10 1.14 -0.04 1.49
SINCE JAN 1 1.26 1.89 -0.63 1.75
DEGREE DAYS
HEATING
YESTERDAY 8 23 -15 20
MONTH TO DATE 422 498 -76 375
SINCE MAR 1 1032 1459 -427 1249
SINCE JUL 1 5414 7249 -1835 6470
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE MAR 1 0 0 0 0
SINCE JAN 1 0 0 0 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 41 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 10.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 35 8:00 AM
LOWEST 12 1:00 PM
AVERAGE 24
......................................................
THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 54 77 1989
MINIMUM TEMPERATURE (F) 31 14 1970
SUNRISE AND SUNSET
APRIL 21 2026.........SUNRISE 6:27 AM MDT SUNSET 8:04 PM MDT
APRIL 22 2026.........SUNRISE 6:25 AM MDT SUNSET 8:05 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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