Weather in Concord, California
Fog and sun in daily rhythm. Day 58 of spring. Read this microseason across nine climate regions →
- TodayMay 16Partly Cloudy—78°55°
- SundayMay 17Overcast—74°52°
- MondayMay 18Partly Cloudy—84°57°
- TuesdayMay 19Partly Cloudy—91°62°
- WednesdayMay 20Overcast—91°62°
- ThursdayMay 21Overcast—90°61°
- FridayMay 22Overcast—81°58°
- PM 2.5
- 5.0 μg/m³
- PM 10
- 7.3 μg/m³
- NO₂
- 1.4 μg/m³
- Ozone
- 99.0 μg/m³
- UV Index
- 4.0 Moderate
Flowers blooming in late autumn, a sure sign of a bad winter coming.
- Moonrise
- 12:24 PM
- Moonset
- 2:30 AM
- In sign
- ♉︎ Taurus
Fog and sun in daily rhythm
Concord at a glance
- Today vs. normal: 75°F — typical for the season
- Last frost: April 4 (climatological average for this latitude)
- Microseason: 28 of 72, May 16–20
- Planting window: Direct sow okra, melons, and southern peas. Thin carrot rows.
Right now in the garden
Warm-season window is open
As of May 16, the last spring frost has passed for most years. Transplant tomatoes, peppers, eggplants, basil, and cucurbits (cucumbers, squash, melons) now. Direct-sow beans and corn into warm soil.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
August claims the title of Concord's warmest month at ~74°F mean temperature, while January marks the coldest at ~49°F. January brings peak rainfall at 3.2 inches, contrasting sharply with July's bone-dry 0.0 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 49° | 3.2″ | 5 |
| February | 53° | 3.2″ | 6 |
| March | 57° | 2.3″ | 6 |
| April | 60° | 1.1″ | 3 |
| May | 65° | 0.5″ | 1 |
| June | 71° | 0.2″ | 0 |
| July | 73° | 0.0″ | 0 |
| August | 74° | 0.0″ | 0 |
| September | 72° | 0.1″ | 0 |
| October | 65° | 0.7″ | 1 |
| November | 56° | 1.6″ | 4 |
| December | 50° | 3.2″ | 6 |
Regional context
Concord belongs to the hot-summer Mediterranean climate region, sharing temperature ranges, seasonal patterns, and growing conditions with nearby cities in this climate zone.
Similar climates: Los Angeles, CA, San Francisco, CA, San Diego, CA, Riverside, CA, Sacramento, CA.
Naturalist notes
Late May brings the distinctive drumming of acorn woodpeckers as they establish breeding territories in the valley oaks.
June marks when the California poppies reach their peak bloom, carpeting open hillsides in brilliant orange.
Frequently asked
- When does it freeze in Concord?
- Concord's last spring frost typically occurs around mid-April, while the first fall frost returns around mid-November.
- What is the rainy season in Concord?
- January stands as the wettest month with about 3.2 inches of rain on average, contributing to the city's roughly 16 inches annually.
- What is the warmest month in Concord?
- August typically claims the warmest temperatures, averaging about 74°F.
- What is the coldest month in Concord?
- January typically records the coldest temperatures, averaging about 49°F.
- When can I start a vegetable garden in Concord?
- Cool-season crops like peas and lettuce can be sown around the last spring frost in mid-April, while warm-season crops such as tomatoes and peppers should wait until 1–2 weeks after.
- How many rainy days does Concord get?
- Concord averages about 33 rainy days per year.
- What hardiness zone is Concord?
- Concord's USDA hardiness zone depends on its lowest average winter temperature; the USDA's online lookup tool using the city ZIP code provides the current zone designation.
Climate
Concord, California experiences a hot-summer Mediterranean climate. January temperatures hover near 49°F while July averages 73°F, creating a 24°F seasonal swing.
Throughout the year, Concord receives about 16 inches of precipitation spread over roughly 33 rainy days.
Location shapes Concord's weather patterns through its latitude at 38.0°N, proximity to large water bodies, and elevation. These factors determine what grows here, when frost threatens, and how daily weather unfolds.