Climatological Report (Monthly)
Issued by NWS

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657
CXUS56 KSGX 162101
CLMMYF

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
201 PM PDT WED SEP 16 2026

...................................

...THE SAN DIEGO/MONTGOMERY FLD CA CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            105   08/29/2009
 LOW              55   08/31/2010
HIGHEST           95   08/23         MM      MM       92  08/29
LOWEST            67   08/05         MM      MM       62  08/01
                                                          08/19
                                                          08/20
AVG. MAXIMUM    84.8               82.0     2.8     80.8
AVG. MINIMUM    69.2               65.3     3.9     64.8
MEAN            77.0               73.7     3.3     72.8
DAYS MAX >= 90     4                3.3     0.7        2
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        2.15   2023
TOTALS             T               0.01   -0.01     0.05
DAILY AVG.         T               0.00   -0.00     0.00
DAYS >= .01        0                0.3    -0.3        1
DAYS >= .10        0                0.0     0.0        0
DAYS >= .50        0                0.0     0.0        0
DAYS >= 1.00       0                0.0     0.0        0
DAYS >= %-5.2F     0                                   0
DAYS >= %-5.2F     0                                   0
GREATEST
 24 HR. TOTAL      T   08/07 TO 08/07               0.05  08/28 TO 08/28
 STORM TOTAL    0.00                                0.05
 (MM/DD(HH))            MM


DEGREE DAYS
HEATING TOTAL      0                  0       0        0
 SINCE 7/1         0                  1      -1       MM
COOLING TOTAL    379                268     111      251
 SINCE 1/1       928                646     282       MM

FREEZE DATES
RECORD
 EARLIEST     MM
 LATEST       MM
EARLIEST                        MM
LATEST                          MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.2
RESULTANT WIND SPEED/DIRECTION   4/270
HIGHEST WIND SPEED/DIRECTION    17/310    DATE  08/11
HIGHEST GUST SPEED/DIRECTION    23/300    DATE  08/09
                                23/300          08/14

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.21
NUMBER OF DAYS FAIR           22
NUMBER OF DAYS PC              9
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     70

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                0     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      15     FOG W/VIS <= 1/4 MILE      1
HAZE                      8

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

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