Climatological Report (Monthly)
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172
CXUS56 KSGX 011249
CLMRAL

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
449 AM PST WED JAN 01 2025

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

...THE RIVERSIDE MUNI AIRPORT CA CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2024...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1893 TO 2024

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             94   12/03/1958
 LOW              21   12/12/1949
                       12/26/1911
HIGHEST           86   12/19         69      17       83  12/05
LOWEST            37   12/12         42      -5       40  12/12
AVG. MAXIMUM    71.8               66.8     5.0     70.6
AVG. MINIMUM    44.6               42.8     1.8     47.3
MEAN            58.2               54.8     3.4     59.0
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MAX >= 45    31                                  31
DAYS MAX >= 120    0                                   0
DAYS MIN <= 32     0                1.3    -1.3        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        6.88   2010
 MINIMUM        0.00   2007
TOTALS             T               1.51   -1.51     0.86
DAILY AVG.         T               0.05   -0.05     0.03
DAYS >= .01        0                5.1    -5.1        4
DAYS >= .10        0                3.0    -3.0        2
DAYS >= .50        0                1.0    -1.0        0
DAYS >= 1.00       0                0.3    -0.3        0
DAYS >= %-5.2F     0                                   0
DAYS >= %-5.2F     0                                   0
GREATEST
 24 HR. TOTAL      T   12/24 TO 12/24               0.48  12/22 TO 12/22
 STORM TOTAL    0.00                                0.48
 (MM/DD(HH))            MM


DEGREE DAYS
HEATING TOTAL    209                318    -109      184
 SINCE 7/1       379                507    -128       MM
COOLING TOTAL      5                  2       3        2
 SINCE 1/1      2055               1854     201       MM

FREEZE DATES
RECORD
 EARLIEST     10/21/1949
 LATEST       04/28/1894
EARLIEST                        01/17
LATEST                          01/02
................................................................

WIND (MPH)
AVERAGE WIND SPEED              3.6
RESULTANT WIND SPEED/DIRECTION   1/030
HIGHEST WIND SPEED/DIRECTION    21/010    DATE  12/10
HIGHEST GUST SPEED/DIRECTION    36/010    DATE  12/09

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.10
NUMBER OF DAYS FAIR           26
NUMBER OF DAYS PC              5
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     50

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                1     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      12     FOG W/VIS <= 1/4 MILE      1
HAZE                     11

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

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