Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KMTR 180825
CLICCR
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
125 AM PDT THU SEP 18 2025
...................................
...THE CONCORD AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 17 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 97R 4:06 PM 97 2000 85 12 74
MINIMUM 61 6:30 AM 51 2001 58 3 57
AVERAGE 79 72 7 66
PRECIPITATION (IN)
YESTERDAY 0.00 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 14 1
MONTH TO DATE 141 132
SINCE SEP 1 141 132
SINCE JAN 1 892 1180
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION NW (310)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 4.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 6:00 AM
LOWEST 17 3:00 PM
AVERAGE 54
..........................................................
THE CONCORD AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 103 2000
MINIMUM TEMPERATURE (F) 58 49 2012
SUNRISE AND SUNSET
SEPTEMBER 18 2025.....SUNRISE 6:53 AM PDT SUNSET 7:11 PM PDT
SEPTEMBER 19 2025.....SUNRISE 6:54 AM PDT SUNSET 7:09 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$