Climate averages 1991–2020
Concord (California), United States weather
in October.
A warm, fairly dry month: the 5th warmest and the 6th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
October is a warm month in Concord (California), United States: daytime highs average 24.3°C and nights cool to about 12.4°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 21 mm of rain on roughly 3 days, which makes October a fairly dry month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 15 min on an average October day.
The nearest other city in this atlas is Antioch (20 km away). In October its highs average 24.4°C, about as warm as Concord (California), United States, with 22 mm of rain.
Among the 498 cities listed in the United States, Concord (California), United States ranks joint 191st of 498 for the warmest October highs and joint 80th of 498 for the driest October (rainfall, lowest first). The mean October high of those 498 cities is 21.4°C; Concord (California), United States is 2.9°C warmer than that mean.
From October to November, average highs fall by 6.3°C to 17.9°C, and monthly rainfall rises from 21 mm to 44 mm.
The annual picture
October in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Concord (California), United States climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 13.9°C5.6°C | 5.6°C | 93 | 8.9 | 9.910 h |
| February | 15.6°C6.6°C | 6.6°C | 96 | 8.8 | 10.811 h |
| March | 17.8°C7.9°C | 7.9°C | 71 | 8.3 | 11.912 h |
| April | 20.3°C9.1°C | 9.1°C | 33 | 4.7 | 13.213 h |
| May | 23.8°C11.3°C | 11.3°C | 17 | 2.9 | 14.214 h |
| June | 27.3°C13.1°C | 13.1°C | 3.7 | 0.8 | 14.815 h |
| July | 28.8°C14.1°C | 14.1°C | 0.5 | 0.2 | 14.515 h |
| August | 28.8°C14.5°C | 14.5°C | 1.5 | 0.2 | 13.614 h |
| September | 28.2°C14.1°C | 14.1°C | 1.5 | 0.3 | 12.512 h |
| October, selected | 24.3°C12.4°C | 12.4°C | 21 | 2.8 | 11.211 h |
| November | 17.9°C8.8°C | 8.8°C | 44 | 5.4 | 10.210 h |
| December | 13.8°C6.0°C | 6.0°C | 84 | 8.6 | 9.610 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
October in nearby cities
- Antioch in OctoberUnited States · 20 kmHigh 24.4°C · Low 12.8°C · 22 mm rain
- San Ramon in OctoberUnited States · 23 kmHigh 23.6°C · Low 12.0°C · 21 mm rain
- Vallejo in OctoberUnited States · 24 kmHigh 24.4°C · Low 11.9°C · 23 mm rain
- Berkeley in OctoberUnited States · 24 kmHigh 23.2°C · Low 11.7°C · 21 mm rain
- Oakland in OctoberUnited States · 29 kmHigh 23.2°C · Low 12.1°C · 21 mm rain
- Fairfield in OctoberUnited States · 30 kmHigh 24.5°C · Low 12.5°C · 24 mm rain
- Hayward in OctoberUnited States · 35 kmHigh 23.2°C · Low 12.5°C · 21 mm rain
- Pleasanton in OctoberUnited States · 38 kmHigh 23.9°C · Low 12.4°C · 21 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Concord) is explained once on the Concord (California), United States year overview and on the Sources, method and limits page.