Climatological Report (Monthly)
Issued by NWS
Issued by NWS
967 CXUS56 KSGX 011014 CLMMYF CLIMATE REPORT NATIONAL WEATHER SERVICE SAN DIEGO, CA 214 AM PST MON JAN 01 2024 ................................... ...THE SAN DIEGO/MONTGOMERY FLD CA CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2023... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1998 TO 2023 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 90 12/01/1998 LOW 32 12/24/1998 HIGHEST 81 12/05 MM MM 83 12/26 12/15 LOWEST 43 12/02 MM MM 39 12/14 12/03 12/10 12/17 12/19 AVG. MAXIMUM 70.0 67.3 2.7 65.5 AVG. MINIMUM 47.6 45.3 2.3 45.3 MEAN 58.8 56.3 2.5 55.4 DAYS MAX >= 90 0 0.0 0.0 0 DAYS MAX <= 32 0 0.0 0.0 0 DAYS MAX >= 45 31 31 DAYS MIN <= 32 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 6.31 2010 TOTALS 0.65 1.61 -0.96 1.39 DAILY AVG. 0.02 0.05 -0.03 0.04 DAYS >= .01 6 7.1 -1.1 4 DAYS >= .10 3 3.3 -0.3 2 DAYS >= .50 0 1.1 -1.1 1 DAYS >= 1.00 0 0.4 -0.4 0 DAYS >= %-5.2F 0 0 DAYS >= %-5.2F 0 0 GREATEST 24 HR. TOTAL 0.48 12/21 TO 12/22 0.93 12/11 TO 12/12 STORM TOTAL 0.35 0.68 (MM/DD(HH)) MM DEGREE DAYS HEATING TOTAL 184 272 -88 291 SINCE 7/1 256 439 -183 MM COOLING TOTAL 0 2 -2 2 SINCE 1/1 888 1018 -130 MM FREEZE DATES RECORD EARLIEST MM LATEST MM EARLIEST MM LATEST MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 3.6 RESULTANT WIND SPEED/DIRECTION 1/290 HIGHEST WIND SPEED/DIRECTION 24/240 DATE 12/21 HIGHEST GUST SPEED/DIRECTION 36/240 DATE 12/21 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.26 NUMBER OF DAYS FAIR 19 NUMBER OF DAYS PC 11 NUMBER OF DAYS CLOUDY 1 AVERAGE RH (PERCENT) 63 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 2 MIXED PRECIP 0 HEAVY RAIN 1 RAIN 2 LIGHT RAIN 5 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 19 FOG W/VIS <= 1/4 MILE 8 HAZE 13 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$