CDUS45 KRIW 200730 CLIGEY CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 130 AM MDT WED MAY 20 2026 ................................... ...THE GREYBULL WY CLIMATE SUMMARY FOR MAY 19 2026... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1998 TO 2026 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 63 3:50 PM 94 2009 72 -9 59 MINIMUM 27R 5:03 AM 31 2003 45 -18 42 AVERAGE 45 58 -13 51 PRECIPITATION (IN) YESTERDAY 0.00 0.72 2010 0.05 -0.05 T MONTH TO DATE 0.22 0.72 -0.50 1.49 SINCE MAR 1 1.12 1.47 -0.35 2.41 SINCE JAN 1 1.16 1.74 -0.58 2.62 DEGREE DAYS HEATING YESTERDAY 20 8 12 14 MONTH TO DATE 189 203 -14 159 SINCE MAR 1 1308 1593 -285 1439 SINCE JUL 1 5696 7417 -1721 6924 COOLING YESTERDAY 0 1 -1 0 MONTH TO DATE 10 5 5 9 SINCE MAR 1 10 6 4 9 SINCE JAN 1 10 6 4 9 ................................................................... WIND (MPH) HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SE (140) HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION SE (130) AVERAGE WIND SPEED 5.2 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 75 3:00 AM LOWEST 14 4:00 PM AVERAGE 45 .......................................................... THE GREYBULL WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 72 90 2002 MINIMUM TEMPERATURE (F) 45 29 2003 SUNRISE AND SUNSET MAY 20 2026...........SUNRISE 5:39 AM MDT SUNSET 8:39 PM MDT MAY 21 2026...........SUNRISE 5:39 AM MDT SUNSET 8:40 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$