CDUS45 KRIW 210732 CLIRKS CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 132 AM MDT MON SEP 21 2026 ................................... ...THE ROCK SPRINGS WY CLIMATE SUMMARY FOR SEPTEMBER 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 64 4:43 PM 81 1966 69 -5 72 MINIMUM 36 6:52 AM 19 1965 42 -6 54 AVERAGE 50 56 -6 PRECIPITATION (IN) YESTERDAY 0.00 0.19 1989 0.03 -0.03 0.01 MONTH TO DATE 0.29 0.49 -0.20 0.14 SINCE SEP 1 0.29 0.49 -0.20 0.14 SINCE JAN 1 3.34 5.73 -2.39 3.08 DEGREE DAYS HEATING YESTERDAY 15 10 5 2 MONTH TO DATE 57 124 -67 81 SINCE SEP 1 57 124 -67 81 SINCE JUL 1 71 183 -112 99 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 21 8 13 19 SINCE SEP 1 21 8 13 19 SINCE JAN 1 558 317 241 441 ................................................................... WIND (MPH) HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SW (230) HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SW (230) AVERAGE WIND SPEED 8.0 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.1 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG FOG W/VISIBILITY <= 1/4 MILE RELATIVE HUMIDITY (PERCENT) HIGHEST 100 7:00 AM LOWEST 31 4:00 PM AVERAGE 66 .......................................................... THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 68 82 1967 MINIMUM TEMPERATURE (F) 42 22 1995 SUNRISE AND SUNSET SEPTEMBER 21 2026.....SUNRISE 7:03 AM MDT SUNSET 7:15 PM MDT SEPTEMBER 22 2026.....SUNRISE 7:04 AM MDT SUNSET 7:13 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$