854 CDUS45 KRIW 200729 CLICPR CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 129 AM MDT MON OCT 20 2025 ................................... ...THE CASPER WY CLIMATE SUMMARY FOR OCTOBER 19 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1939 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 69 3:37 PM 79 2003 58 11 63 MINIMUM 34 1:10 AM 17 1949 30 4 28 AVERAGE 52 44 8 PRECIPITATION (IN) YESTERDAY 0.01 1.21 2021 0.04 -0.03 0.00 MONTH TO DATE 1.47 0.82 0.65 0.45 SINCE SEP 1 4.02 1.77 2.25 0.69 SINCE JAN 1 11.33 10.60 0.73 7.67 SNOWFALL (IN) YESTERDAY 0.0 4.7 2021 0.2 -0.2 0.0 MONTH TO DATE 0.0 3.9 -3.9 T SINCE SEP 1 0.0 5.4 -5.4 T SINCE JUL 1 0.0 5.4 -5.4 T SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 13 21 -8 19 MONTH TO DATE 278 331 -53 217 SINCE SEP 1 391 545 -154 319 SINCE JUL 1 401 590 -189 357 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE SEP 1 17 30 -13 63 SINCE JAN 1 467 442 25 538 ................................................................... WIND (MPH) HIGHEST WIND SPEED 47 HIGHEST WIND DIRECTION SW (220) HIGHEST GUST SPEED 59 HIGHEST GUST DIRECTION SW (230) AVERAGE WIND SPEED 20.3 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.1 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN RELATIVE HUMIDITY (PERCENT) HIGHEST 82 10:00 PM LOWEST 26 4:00 PM AVERAGE 54 .......................................................... THE CASPER WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 58 77 1992 2003 MINIMUM TEMPERATURE (F) 29 15 1949 SUNRISE AND SUNSET OCTOBER 20 2025.......SUNRISE 7:26 AM MDT SUNSET 6:15 PM MDT OCTOBER 21 2025.......SUNRISE 7:27 AM MDT SUNSET 6:13 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$