Climatological Report (Daily)
Issued by NWS
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111
CDUS45 KRIW 120728
CLIRKS
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT SAT SEP 12 2026
...................................
...THE ROCK SPRINGS WY CLIMATE SUMMARY FOR SEPTEMBER 11 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 81 2:52 PM 85 1990 73 8 80
MINIMUM 53 6:41 AM 27 1989 46 7 54
2014
AVERAGE 67 59 8
PRECIPITATION (IN)
YESTERDAY 0.00 2.00 1973 0.03 -0.03 0.02
MONTH TO DATE 0.02 0.25 -0.23 0.08
SINCE SEP 1 0.02 0.25 -0.23 0.08
SINCE JAN 1 3.07 5.49 -2.42 3.02
DEGREE DAYS
HEATING
YESTERDAY 0 6 -6 0
MONTH TO DATE 10 52 -42 9
SINCE SEP 1 10 52 -42 9
SINCE JUL 1 24 111 -87 27
COOLING
YESTERDAY 2 0 2 2
MONTH TO DATE 15 8 7 19
SINCE SEP 1 15 8 7 19
SINCE JAN 1 552 317 235 441
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 32 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 14.6
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 31 10:00 PM
LOWEST 16 4:00 PM
AVERAGE 24
..........................................................
THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 88 1990
MINIMUM TEMPERATURE (F) 45 21 2014
SUNRISE AND SUNSET
SEPTEMBER 12 2026.....SUNRISE 6:54 AM MDT SUNSET 7:30 PM MDT
SEPTEMBER 13 2026.....SUNRISE 6:55 AM MDT SUNSET 7:29 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$