Climatological Report (Daily)
Issued by NWS
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165
CDUS46 KMTR 170830
CLICCR
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
130 AM PDT THU SEP 17 2026
...................................
...THE CONCORD AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 16 2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1999 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 71 2:55 PM 94 2025 85 -14 94
MINIMUM 60 7:04 AM 49 2006 58 2 61
2012
AVERAGE 66 72 -6 78
PRECIPITATION (IN)
YESTERDAY 0.00 0.00
MONTH TO DATE 0.13 T
SINCE OCT 1 6.72 4.30
SINCE JAN 1 3.58 2.04
DEGREE DAYS
HEATING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE SEP 1 0 0
SINCE JUL 1 1 0
COOLING
YESTERDAY 1 13
MONTH TO DATE 113 127
SINCE SEP 1 113 127
SINCE JAN 1 962 878
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 14 RESULTANT WIND DIRECTION SW (210)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 14.3
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 80 6:00 AM
LOWEST 53 2:00 PM
AVERAGE 67
..........................................................
THE CONCORD AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 97 2000
2025
MINIMUM TEMPERATURE (F) 58 51 2001
SUNRISE AND SUNSET
SEPTEMBER 17 2026.....SUNRISE 6:52 AM PDT SUNSET 7:13 PM PDT
SEPTEMBER 18 2026.....SUNRISE 6:53 AM PDT SUNSET 7:11 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$