301 CDUS46 KMTR 220026 CLIAPC CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 526 PM PDT MON MAY 21 2018 ................................... ...THE NAPA AIRPORT CLIMATE SUMMARY FOR MAY 21 2018... VALID TODAY AS OF 0500 PM LOCAL TIME. 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) TODAY MAXIMUM MM MM 96 2000 73 MM 87 MINIMUM MM MM 39 2008 46 MM 49 AVERAGE MM 60 MM 68 PRECIPITATION (IN) TODAY 0.00 0.00 MONTH TO DATE 0.00 T SINCE OCT 1 15.79 36.85 SINCE JAN 1 12.76 27.90 DEGREE DAYS HEATING TODAY MM 0 MONTH TO DATE 99 77 SINCE MAR 1 801 556 SINCE JUL 1 2821 2439 COOLING TODAY MM 3 MONTH TO DATE 2 29 SINCE MAR 1 2 31 SINCE JAN 1 2 31 .................................................................. WIND (MPH) RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION S (200) HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION S (200) HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM AVERAGE WIND SPEED 8.2 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.1 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. FOG FOG W/VISIBILITY <= 1/4 MILE HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 77 800 AM LOWEST 53 1200 PM AVERAGE 65 .......................................................... THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 74 92 2000 MINIMUM TEMPERATURE (F) 46 35 2013 2010 SUNRISE AND SUNSET MAY 21 2018...........SUNRISE 553 AM PDT SUNSET 818 PM PDT MAY 22 2018...........SUNRISE 553 AM PDT SUNSET 819 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$