Climateby Month

Concord, CA climate by month

NOAA 1991-2020 normals · 75 ft elevation

Concord has hot summers and cool winters. Highs peak at 88°F in July and fall to 56°F in January. The wettest month is January (about 10 wet days) and the driest is July (about 0). Snow is rare. By our comfort score the best months are April and May.

Warmest month
88°F
July normal high
Coldest month
35°F
December normal low
Wet days a year
56
17.7 in of precipitation
Muggy days a year
0
dew point 65°F or higher

How warm is Concord?

Normal highs range from 56°F in January to 88°F in July.

20°40°60°80°100° January: normal high 56°F (13°C), low 35°F (2°C) 56° 35° February: normal high 61°F (16°C), low 37°F (3°C) March: normal high 66°F (19°C), low 40°F (4°C) April: normal high 71°F (22°C), low 43°F (6°C) May: normal high 78°F (26°C), low 46°F (8°C) June: normal high 85°F (29°C), low 50°F (10°C) July: normal high 88°F (31°C), low 51°F (11°C) 88° 51° August: normal high 87°F (31°C), low 51°F (11°C) September: normal high 84°F (29°C), low 50°F (10°C) October: normal high 76°F (24°C), low 46°F (8°C) November: normal high 64°F (18°C), low 39°F (4°C) December: normal high 57°F (14°C), low 35°F (2°C) JFMAMJJASOND

Bars run from the normal low to the normal high for each month.

How rainy is Concord?

January has the most wet days (about 10); the year brings about 18 in of precipitation.

January: 10 wet days 10 February: 10 wet days March: 8 wet days April: 5 wet days May: 3 wet days June: 1 wet days July: 0 wet days 0 August: 0 wet days September: 1 wet days October: 3 wet days November: 6 wet days December: 9 wet days JFMAMJJASOND

Wet day: at least 0.01 in of rain or melted snow, counted from daily records 1991-2020.

How humid is Concord?

Muggy days (dew point 65°F or higher) are rare in any month.

January: 0 muggy days 0 February: 0 muggy days March: 0 muggy days April: 0 muggy days May: 0 muggy days June: 0 muggy days July: 0 muggy days August: 0 muggy days September: 0 muggy days October: 0 muggy days November: 0 muggy days December: 0 muggy days JFMAMJJASOND

Muggy day: daily mean dew point of 65°F or higher, from hourly observations 1991-2020 at Travis Air Force Base, 21 mi NNE of the city center (the nearest airport with complete hourly records).

How much daylight?

Daylight ranges from about 9.6 hours in December to 14.8 hours in June.

January: 9.9 hours of daylight February: 10.8 hours of daylight March: 12.0 hours of daylight April: 13.2 hours of daylight May: 14.2 hours of daylight June: 14.8 hours of daylight 14.8 July: 14.5 hours of daylight August: 13.6 hours of daylight September: 12.4 hours of daylight October: 11.2 hours of daylight November: 10.1 hours of daylight December: 9.6 hours of daylight 9.6 JFMAMJJASOND
See all numbers
Monthly climate normals and day counts for Concord, 1991-2020
MonthHighLowPrecip.Wet daysMuggy daysDaylight
January 56°F35°F 3.5 in10 0 9.9 h
February 61°F37°F 3.6 in10 0 10.8 h
March 66°F40°F 2.6 in8 0 12.0 h
April 71°F43°F 1.2 in5 0 13.2 h
May 78°F46°F 0.6 in3 0 14.2 h
June 85°F50°F 0.1 in1 0 14.8 h
July 88°F51°F 0.0 in0 0 14.5 h
August 87°F51°F 0.02 in0 0 13.6 h
September 84°F50°F 0.06 in1 0 12.4 h
October 76°F46°F 0.7 in3 0 11.2 h
November 64°F39°F 1.9 in6 0 10.1 h
December 57°F35°F 3.5 in9 0 9.6 h

High and low: NOAA 1991-2020 normal daily high and low. Wet days: at least 0.01 in of rain or melted snow. Muggy days: daily mean dew point 65°F or higher.

Best months to visit Concord

By our comfort score, the best months are April and May.

Comfort score by month (0-100) and its parts, in days per month
MonthScoreComfortableNotable rainHot or cold
Jan 44270
Feb 53770
Mar 691760
Apr 802141
May 801923
Jun 661009
Jul 554014
Aug 555011
Sep 61908
Oct 752122
Nov 631440
Dec 43270

Score = 40 × share of comfortable days + 25 × share of days without notable rain + 20 × share of days neither hot (90°F+) nor cold (high 40°F or below) + 15 × daylight. How the score works.

Frost dates in Concord

The last spring frost typically comes around Jan 9, and the first fall frost around Dec 14, leaving 343 frost-free days in a typical year.

Frost and freeze dates for Concord
Typical date1 year in 10
Last spring frost (32°F)Jan 9after Feb 12
First fall frost (32°F)Dec 14before Nov 28
Hard freeze (28°F)in about 27% of years; no typical date
Frost-free season343 daysunder 313 days

"Typical" is the date with a 50% chance of a later spring frost (or earlier fall frost). Planting after the "1 year in 10" spring date gives a 90% chance of no further frost. The Old Farmer's Almanac publishes 30% dates, which fall between our typical and 1-in-10 dates.

Station: Concord Buchanan Fld (USW00023254), NOAA 1991-2020 freeze probabilities. Frost dates for every city in California.

Hottest and coldest readings, 1991-2020

The highest reading was 111°F (July 23, 2006, and 1 other day); the lowest was 19°F (December 9, 2013).

From the temperature station's daily records with NOAA quality flags removed. Not an all-time record.

Near Concord

Similar climates elsewhere

Where the numbers come from

  • Temperature: Martinez WTP (USC00045378), 5.1 mi WNW of the city center, 40 ft . NOAA normals and daily records, 1991-2020.
  • Rain, snowfall and snow depth: Concord Wwtp (USC00041967), 2.1 mi W of the city center, 40 ft . NOAA normals and daily records, 1991-2020.
  • Frost dates: Concord Buchanan Fld (USW00023254), 1.6 mi NW of the city center, 18 ft (57 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour and cloud cover: Travis AFB (USW00023202), 21 mi NNE of the city center, 59 ft . NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Travis Air Force Base (745160-23202), 21 mi NNE of the city center, 62 ft . Hourly observations, 1991-2020.

Distances from the city center (USGS). Methodology · Report an error