Concord, California, United States Climate Change Severity

57
High
The current climate change severity in Concord is High, with a 12.5% worsening in the climate score compared to last 15 years. This suggests deteriorating conditions, with increasing negative impacts on weather patterns and environmental conditions.
Data: Jan. to Jul. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C

Concord Weather Condition Changes (Historic Vs 2025)

2025
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Historic
2025

Over the past 15 year(s), Concord temperature has changed by around -8.4%, and has experienced notable climate changes.

Sunny
Cloudy
Rainy
Snowy
Misty
Data: Jan. to Jul. (Historical Vs 2025)

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
9920
-79.7%
cloudyCloudy
5423
-57.4%
rainyRainy
4134
-17.07%
snowySnowy
00
0%
mistyMisty
05
100%

Disclaimer: Other weather conditions not shown may affect the total day count.

Climate Change Indicators:

Over the past 15 years, Concord has experienced measurable shifts in key climate parameters, contributing to the current severity score of 57 (within the High severity category). This suggests worsening climate conditions from the previous years. Here’s a breakdown of the specific changes observed:

Severity Score

57/100

High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Concord experienced significant changes:

Temperature change of

-1.2 °C

Variation in annual rainfall

-24.7 %

Change in average humidity

+18.9 %

PM2.5 levels surged by

+100 %

Heatwave changed by

-5.4 day(s)

Coldwave changed by

+0.7 day(s)

Wind speeds changed by

+0.002 km/h

These indicators show that Concord is experiencing a more volatile and extreme climate, reinforcing the need for urgent intervention to mitigate risks. As the severity score rises, focus must shift to adaptation and emergency preparedness.

Check how we calculate Climate Change Severity
Based on data from Jan. to Jul.

Concord Weather Forecast 30 Days (August - September 2025)
Concord, California, United States

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Mon. 11, Aug.
partly cloudyPartly Cloudy
Temperature Icon29°/11°
Humidity Icon70%
Wind Icon16km/h
Tue. 12, Aug.
partly cloudyPartly Cloudy
Temperature Icon27°/13°
Humidity Icon78%
Wind Icon17km/h
Wed. 13, Aug.
overcastOvercast
Temperature Icon25°/13°
Humidity Icon77%
Wind Icon17km/h
Thu. 14, Aug.
sunnySunny
Temperature Icon30°/14°
Humidity Icon59%
Wind Icon15km/h
Fri. 15, Aug.
sunnySunny
Temperature Icon32°/15°
Humidity Icon60%
Wind Icon16km/h
Sat. 16, Aug.
sunnySunny
Temperature Icon28°/15°
Humidity Icon67%
Wind Icon20km/h
Sun. 17, Aug.
sunnySunny
Temperature Icon28°/15°
Humidity Icon69%
Wind Icon17km/h
Mon. 18, Aug.
sunnySunny
Temperature Icon29°/13°
Humidity Icon62%
Wind Icon17km/h
Tue. 19, Aug.
sunnySunny
Temperature Icon29°/13°
Humidity Icon58%
Wind Icon14km/h
Wed. 20, Aug.
sunnySunny
Temperature Icon35°/15°
Humidity Icon41%
Wind Icon13km/h
Thu. 21, Aug.
sunnySunny
Temperature Icon37°/18°
Humidity Icon31%
Wind Icon14km/h
Fri. 22, Aug.
sunnySunny
Temperature Icon36°/18°
Humidity Icon36%
Wind Icon15km/h
Sat. 23, Aug.
sunnySunny
Temperature Icon30°/14°
Humidity Icon54%
Wind Icon18km/h
Sun. 24, Aug.
sunnySunny
Temperature Icon29°/13°
Humidity Icon58%
Wind Icon15km/h
Mon. 25, Aug.
sunnySunny
Temperature Icon28°/14°
Humidity Icon60%
Wind Icon15km/h
Tue. 26, Aug.
sunnySunny
Temperature Icon29°/14°
Humidity Icon57%
Wind Icon15km/h
Wed. 27, Aug.
sunnySunny
Temperature Icon30°/15°
Humidity Icon55%
Wind Icon15km/h
Thu. 28, Aug.
patchy rain possiblePatchy rain possible
Temperature Icon30°/15°
Humidity Icon55%
Wind Icon16km/h
Fri. 29, Aug.
patchy rain possiblePatchy rain possible
Temperature Icon29°/15°
Humidity Icon58%
Wind Icon16km/h
Sat. 30, Aug.
sunnySunny
Temperature Icon29°/15°
Humidity Icon58%
Wind Icon16km/h
Sun. 31, Aug.
sunnySunny
Temperature Icon29°/14°
Humidity Icon58%
Wind Icon15km/h
Mon. 1, Sep.
patchy rain possiblePatchy rain possible
Temperature Icon30°/15°
Humidity Icon53%
Wind Icon14km/h
Tue. 2, Sep.
patchy rain possiblePatchy rain possible
Temperature Icon30°/16°
Humidity Icon54%
Wind Icon14km/h
Wed. 3, Sep.
sunnySunny
Temperature Icon30°/15°
Humidity Icon55%
Wind Icon15km/h
Thu. 4, Sep.
patchy rain possiblePatchy rain possible
Temperature Icon29°/15°
Humidity Icon55%
Wind Icon15km/h
Fri. 5, Sep.
sunnySunny
Temperature Icon30°/15°
Humidity Icon56%
Wind Icon14km/h
Sat. 6, Sep.
sunnySunny
Temperature Icon32°/15°
Humidity Icon48%
Wind Icon14km/h
Sun. 7, Sep.
sunnySunny
Temperature Icon30°/16°
Humidity Icon49%
Wind Icon14km/h
Mon. 8, Sep.
sunnySunny
Temperature Icon30°/16°
Humidity Icon52%
Wind Icon15km/h
Tue. 9, Sep.
sunnySunny
Temperature Icon30°/15°
Humidity Icon51%
Wind Icon14km/h
Wed. 10, Sep.
patchy rain possiblePatchy rain possible
Temperature Icon30°/15°
Humidity Icon53%
Wind Icon14km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onThu. 21, Aug.

37.4°C

Low will be onMon. 11, Aug.

11.4°C

HumidityHumidity

High will be onTue. 12, Aug.

78%

Low will be onThu. 21, Aug.

31%

Wind SpeedWind Speed

High will be onSat. 16, Aug.

19.8km/h

Low will be onWed. 20, Aug.

12.6km/h

PrecipitationPrecipitation

High will be onTue. 2, Sep.

0.1mm

Low will be onSun. 17, Aug.

0.02mm

Ultraviolet IndexUV

High will be onThu. 21, Aug.

7

Low will be onMon. 18, Aug.

5

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