Climatological Report (Monthly)
Issued by NWS Eureka, CA
Issued by NWS Eureka, CA
000 CXUS56 KEKA 100510 CLMEKA SFOCLMEKA 000 TTAA00 EKA 041708 CLIMATE REPORT NATIONAL WEATHER SERVICE EUREKA CA 1008 AM PDT MON SEP 04 2023 ................................... ...THE EUREKA CA CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2023... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1886 TO 2023 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL .............................................................. TEMPERATURE (F) RECORD HIGH 82 08/07/1991 08/30/1968 LOW 44 08/16/1935 HIGHEST 73 08/15 MM MM 73 LOWEST 53 08/20 MM MM 50 08/22 08/24 AVG. MAXIMUM 65.8 64.0 1.8 65.7 AVG. MINIMUM 55.2 53.0 2.2 54.7 MEAN 60.5 58.5 2.0 60.2 DAYS MAX >= 90 0 DAYS MIN <= 32 0 PRECIPITATION (INCHES) RECORD MAXIMUM 3.42 1983 MINIMUM 0.00 1940 TOTALS 0.11 0.18 -0.07 DAYS >= .01 5 3.5 1.5 6 DAYS >= .10 0 0.5 -0.5 0 DAYS >= .50 0 0.0 0.0 0 DAYS >= 1.00 0 0.0 0.0 0 GREATEST 24 HR. TOTAL 0.06 08/31 TO 08/31 LIQUID 7/1 MM MM DEGREE DAYS HEATING TOTAL 130 202 -72 139 SINCE 7/1 319 420 -101 MM COOLING TOTAL 0 1 -1 0 SINCE 1/1 0 1 -1 MM .............................................................. WIND (MPH) AVERAGE WIND SPEED 3.5 HIGHEST WIND SPEED/DIRECTION 13/190 DATE 08/21 HIGHEST GUST SPEED/DIRECTION 20/MM DATE 08/21 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.73 NUMBER OF DAYS FAIR 1 NUMBER OF DAYS PC 13 NUMBER OF DAYS CLOUDY 17 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 2 HEAVY RAIN 0 RAIN 0 LIGHT RAIN 7 HAIL 0 SLEET 0 FOG 21 FOG W/VIS <= 1/4 MILE 3 HAZE 12 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. FOR THE COAST, AUGUST WAS A FAIRLY TYPICAL MONTH. MOST MORNINGS WERE PUNCTUATED WITH PERIODS OF FOG WITH HIGH TEMPERATURES IN THE MID TO UPPER 60S. HIGH PRESSURE MID MONTH ALLOWED FOR A HIGH OF 73, WHICH IS THE HIGHEST TEMPERATURE OF THE YEAR FOR WOODLEY ISLAND, THOUGH NOT RECORD BREAKING. MIDLEVEL MOISTURE STREAMED INTO THE AREA MID MONTH PARTLY UNDER THE INFLUENCE OF HURRICANE HILLARY TO THE SOUTH. THIS MOISTURE HELPED GENERATE A PERIOD OF STRONG THUNDERSTORMS AROUND AUGUST 15TH. THESE STORMS STARTED NUMEROUS WILDFIRES IN THE INTERIOR AND EVEN A COUPLE NEAR THE COAST IN REDWOOD NATIONAL PARK. SOME DAYS OF OFFSHORE FLOW BROUGHT BRIEF PERIODS OF SMOKE DOWN TO SEA LEVEL, THOUGH PERSISTENT MARINE INFLUENCE KEPT THE COAST MOSTLY SMOKE FREE. THE MONTH ENDED WITH AN EARLY SEASON COLD FRONT BRINGING 0.06 INCHES OF RAIN, BRINGING THE NORMALLY VERY DRY MONTH JUST SLIGHTLY BELOW AVERAGE. $$