299 CDUS45 KRIW 210739 CLIP60 CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 139 AM MDT SUN OCT 21 2018 ................................... ...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR OCTOBER 20 2018... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1998 TO 2018 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 56 331 PM 63 2003 46 10 48 MINIMUM 23 709 AM 14 2007 22 1 23 AVERAGE 40 34 6 36 PRECIPITATION (IN) YESTERDAY 0.00 0.34 2004 0.05 -0.05 0.08 MONTH TO DATE 1.24 0.81 0.43 0.45 SINCE SEP 1 1.45 2.11 -0.66 3.78 SINCE JAN 1 21.41 16.18 5.23 26.08 DEGREE DAYS HEATING YESTERDAY 25 31 -6 29 MONTH TO DATE 643 547 96 612 SINCE SEP 1 1197 1095 102 1209 SINCE JUL 1 1793 1682 111 1762 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE SEP 1 0 0 0 0 SINCE JAN 1 0 0 0 0 .................................................................. WIND (MPH) HIGHEST WIND SPEED 6 HIGHEST WIND DIRECTION E (110) HIGHEST GUST SPEED 8 HIGHEST GUST DIRECTION E (110) AVERAGE WIND SPEED 1.0 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 96 700 AM LOWEST 35 300 PM AVERAGE 66 .......................................................... THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 46 63 2003 MINIMUM TEMPERATURE (F) 22 13 2007 SUNRISE AND SUNSET OCTOBER 21 2018.......SUNRISE 745 AM MDT SUNSET 627 PM MDT OCTOBER 22 2018.......SUNRISE 746 AM MDT SUNSET 626 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$