CDUS45 KRIW 120731 CLIGEY CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 1231 AM MST FRI DEC 12 2025 ................................... ...THE GREYBULL WY CLIMATE SUMMARY FOR DECEMBER 11 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1998 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 49 3:17 PM 63 2004 31 18 37 MINIMUM 34 11:59 PM -17 2000 9 25 16 AVERAGE 42 20 22 27 PRECIPITATION (IN) YESTERDAY 0.00 T 2002 0.00 0.00 0.00 2003 2012 MONTH TO DATE 0.20 0.04 0.16 T SINCE DEC 1 0.20 0.04 0.16 T SINCE JAN 1 7.03 5.48 1.55 6.28 DEGREE DAYS HEATING YESTERDAY 23 45 -22 38 MONTH TO DATE 364 478 -114 381 SINCE DEC 1 364 478 -114 381 SINCE JUL 1 1737 2255 -518 1776 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE DEC 1 0 0 0 0 SINCE JAN 1 791 744 47 832 ................................................................... WIND (MPH) HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (310) HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NW (310) AVERAGE WIND SPEED 6.1 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.3 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 82 10:00 PM LOWEST 56 3:00 PM AVERAGE 69 .......................................................... THE GREYBULL WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 31 51 2014 MINIMUM TEMPERATURE (F) 8 -15 2000 SUNRISE AND SUNSET DECEMBER 12 2025......SUNRISE 7:40 AM MST SUNSET 4:33 PM MST DECEMBER 13 2025......SUNRISE 7:41 AM MST SUNSET 4:33 PM MST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MMINDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$