166 CDUS45 KRIW 210730 CLICPR CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 130 AM MDT THU SEP 21 2023 ................................... ...THE CASPER WY CLIMATE SUMMARY FOR SEPTEMBER 20 2023... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1939 TO 2023 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 76 2:34 PM 89 1956 74 2 81 MINIMUM 43 11:45 PM 16 1983 41 2 41 AVERAGE 60 57 3 PRECIPITATION (IN) YESTERDAY 0.01 2.01 1989 0.04 -0.03 0.04 MONTH TO DATE 0.55 0.55 0.00 0.66 SINCE SEP 1 0.55 0.55 0.00 0.66 SINCE JAN 1 13.03 9.38 3.65 11.05 SNOWFALL (IN) YESTERDAY 0.0 6.9 1995 0.1 -0.1 0.0 MONTH TO DATE 0.0 0.6 -0.6 0.0 SINCE SEP 1 0.0 0.6 -0.6 0.0 SINCE JUL 1 0.0 0.6 -0.6 T SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 5 8 -3 4 MONTH TO DATE 62 105 -43 81 SINCE SEP 1 62 105 -43 81 SINCE JUL 1 115 150 -35 83 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 19 29 -10 68 SINCE SEP 1 19 29 -10 68 SINCE JAN 1 341 441 -100 544 ................................................................... WIND (MPH) HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION N (10) HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION NW (330) AVERAGE WIND SPEED 13.3 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.2 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. THUNDERSTORM LIGHT RAIN RELATIVE HUMIDITY (PERCENT) HIGHEST 90 11:00 PM LOWEST 11 2:00 PM AVERAGE 51 .......................................................... THE CASPER WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 73 85 1966 MINIMUM TEMPERATURE (F) 40 21 1983 SUNRISE AND SUNSET SEPTEMBER 21 2023.....SUNRISE 6:52 AM MDT SUNSET 7:05 PM MDT SEPTEMBER 22 2023.....SUNRISE 6:53 AM MDT SUNSET 7:03 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$