143
CDUS46 KMTR 200845
CLICCR
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
145 AM PDT SAT SEP 20 2025
...............................
..THE CONCORD AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 19 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1999 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 83 3:43 PM 103 2000 85 -2 81
MINIMUM 61 5:44 AM 48 2001 58 3 57
AVERAGE 72 71 1 69
PRECIPITATION (IN)
YESTERDAY T 0.00
MONTH TO DATE T 0.00
SINCE OCT 1 4.30 12.46
SINCE JAN 1 2.04 9.33
DEGREE DAYS
HEATING
YESTERDAY 0 0
MONTH TO DATE 0 1
SINCE SEP 1 0 1
SINCE JUL 1 0 4
COOLING
YESTERDAY 7 4
MONTH TO DATE 158 139
SINCE SEP 1 158 139
SINCE JAN 1 909 1187
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION NW (300)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 6.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 4:00 AM
LOWEST 33 4:00 PM
AVERAGE 60
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THE CONCORD AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 99 2015
MINIMUM TEMPERATURE (F) 57 48 2001
SUNRISE AND SUNSET
SEPTEMBER 20 2025.....SUNRISE 6:55 AM PDT SUNSET 7:08 PM PDT
SEPTEMBER 21 2025.....SUNRISE 6:55 AM PDT SUNSET 7:06 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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