Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KSGX 180921
CLIRAL
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
221 AM PDT MON AUG 18 2025
...................................
...THE RIVERSIDE MUNI AIRPORT CA CLIMATE SUMMARY FOR AUGUST 17 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1893 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 91 2:32 PM 107 1992 95 -4 93
MINIMUM 62 4:02 AM 45 1916 65 -3 66
AVERAGE 77 80 -3 80
PRECIPITATION (IN)
YESTERDAY 0.00 2.05 1977 0.00 0.00 0.00
MONTH TO DATE 0.00 0.01 -0.01 T
SINCE JUL 1 T 0.13 -0.13 T
SINCE OCT 1 4.34 9.25 -4.91 12.30
SINCE JAN 1 4.29 6.84 -2.55 11.26
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 0 2 -2 1
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 12 15 -3 15
MONTH TO DATE 245 255 -10 324
SINCE JUN 1 888 919 -31 1156
SINCE JAN 1 1125 1112 13 1215
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION W (270)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 5.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 4:00 AM
LOWEST 36 2:00 PM
AVERAGE 68
..........................................................
THE RIVERSIDE MUNI AIRPORT CA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 95 108 1950
2020
MINIMUM TEMPERATURE (F) 65 47 1917
1918
1924
SUNRISE AND SUNSET
AUGUST 18 2025........SUNRISE 6:14 AM PDT SUNSET 7:33 PM PDT
AUGUST 19 2025........SUNRISE 6:15 AM PDT SUNSET 7:31 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$