307
CXUS56 KSGX 011025
CLMONT

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
325 AM PDT SAT JUN 01 2024

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

...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR THE MONTH OF MAY 2024...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2024

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            103   05/13/2013
                       05/12/2013
                       05/03/2004
 LOW              42   05/01/1999
HIGHEST           83   05/30         80       3       87  05/13
                                                          05/14
LOWEST            49   05/06         53      -4       47  05/04
AVG. MAXIMUM    75.4               79.8    -4.4     73.6
AVG. MINIMUM    54.4               55.6    -1.2     54.6
MEAN            64.9               67.7    -2.8     64.1
DAYS MAX >= 90     0                5.0    -5.0        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MAX >= 45    31                                  31
DAYS MAX >= 120    0                                   0
DAYS MIN <= 32     0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        2.52   1977
 MINIMUM        0.00   1983
TOTALS          0.15               0.30   -0.15     0.78
DAILY AVG.      0.00               0.01   -0.01     0.03
DAYS >= .01        2                1.7     0.3        3
DAYS >= .10        1                0.9     0.1        1
DAYS >= .50        0                0.0     0.0        1
DAYS >= 1.00       0                0.0     0.0        0
DAYS >= %-5.2F     0                                   0
DAYS >= %-5.2F     0                                   0
GREATEST
 24 HR. TOTAL   0.15   05/04 TO 05/05               0.74  05/04 TO 05/05
 STORM TOTAL    0.13                                0.70
 (MM/DD(HH))            MM


DEGREE DAYS
HEATING TOTAL     34                 37      -3       78
 SINCE 7/1      1312               1288      24       MM
COOLING TOTAL     36                121     -85       56
 SINCE 1/1        61                214    -153       MM

FREEZE DATES
RECORD
 EARLIEST     11/30/2004
 LATEST       02/14/2006
EARLIEST                        02/24
LATEST                          02/20
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.0
RESULTANT WIND SPEED/DIRECTION   6/250
HIGHEST WIND SPEED/DIRECTION    21/260    DATE  05/10
HIGHEST GUST SPEED/DIRECTION    28/210    DATE  05/05
                                28/240          05/09
                                28/250          05/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.49
NUMBER OF DAYS FAIR            6
NUMBER OF DAYS PC             20
NUMBER OF DAYS CLOUDY          5

AVERAGE RH (PERCENT)     60

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                6     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      24     FOG W/VIS <= 1/4 MILE      0
HAZE                     25

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

$$