Grass Valley, California, United States Climate Change Severity

67
Very High
The current climate change severity in Grass Valley is Very High, with a 25.8% worsening in the climate score compared to last 16 years. This suggests deteriorating conditions, with increasing negative impacts on weather patterns and environmental conditions.
Data: Jan. to Jul. (Historical Vs 2026) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100


Grass Valley Weather Condition Changes (Historic Vs 2026)

0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Historic
2026

Over the past 16 year(s), Grass Valley temperature has changed by around +11.4%, and has experienced notable climate changes.

Sunny
Cloudy
Rainy
Snowy
Misty
Data: Jan. to Jul. (Historical Vs 2026)

Comparison of Weather Condition (Historic Vs 2026)

HistoricDays

Year 2026Days

Change

sunnySunny
101127
25.7%

cloudyCloudy
3924
-38.4%

rainyRainy
5725
-56.1%

snowySnowy
13
200%

mistyMisty
02
100%

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

Climate Change Indicators:

Over the past 16 years, Grass Valley has experienced measurable shifts in key climate parameters, contributing to the current severity score of 67 (within the Very High severity category). This suggests worsening climate conditions from the previous years. Here’s a breakdown of the specific changes observed:

Severity Score

67/100


Very High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2026, Grass Valley experienced significant changes:

Temperature change of

+1.63 °C


Variation in annual rainfall

+61.22 %


Change in average humidity

-12.43 %


PM2.5 levels surged by

-26.65 %


Heatwave changed by

+9 Days


Coldwave changed by

0 Day


Wind speeds changed by

-0.34 km/h


These indicators show a dramatic increase in volatility and worsening conditions. Grass Valley's Very High severity status requires urgent and immediate adaptation and mitigation strategies, particularly focused on managing extreme weather events, improving air quality, and ensuring water resources are adequate for the population.

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

Grass Valley Weather Forecast 30 Days (August - September 2026)
Grass Valley, California, United States


Condition
Temperature IconTemperature
Humidity IconHumi.
Wind IconWind Speed
Sun. 9, Aug.
sunnySunny

Temperature Icon37°/24°

Humidity Icon19%

Wind Icon14.8km/h
Mon. 10, Aug.
sunnySunny

Temperature Icon36°/23°

Humidity Icon16%

Wind Icon15.8km/h
Tue. 11, Aug.
sunnySunny

Temperature Icon35°/22°

Humidity Icon18%

Wind Icon14.4km/h
Wed. 12, Aug.
sunnySunny

Temperature Icon34°/21°

Humidity Icon25%

Wind Icon15.1km/h
Thu. 13, Aug.
sunnySunny

Temperature Icon28°/18°

Humidity Icon41%

Wind Icon13km/h
Fri. 14, Aug.
sunnySunny

Temperature Icon29°/16°

Humidity Icon38%

Wind Icon14.8km/h
Sat. 15, Aug.
sunnySunny

Temperature Icon30°/18°

Humidity Icon35%

Wind Icon15.5km/h
Sun. 16, Aug.
partly cloudyPartly Cloudy

Temperature Icon24°/17°

Humidity Icon41%

Wind Icon8.3km/h
Mon. 17, Aug.
patchy rain possibleRain Possible

Temperature Icon32°/17°

Humidity Icon36%

Wind Icon15.5km/h
Tue. 18, Aug.
sunnySunny

Temperature Icon32°/17°

Humidity Icon37%

Wind Icon14.9km/h
Wed. 19, Aug.
sunnySunny

Temperature Icon31°/16°

Humidity Icon35%

Wind Icon14.8km/h
Thu. 20, Aug.
patchy rain possibleRain Possible

Temperature Icon31°/16°

Humidity Icon37%

Wind Icon14.7km/h
Fri. 21, Aug.
moderate or heavy rain showerRain Showers

Temperature Icon30°/16°

Humidity Icon38%

Wind Icon15km/h
Sat. 22, Aug.
patchy rain possibleRain Possible

Temperature Icon30°/15°

Humidity Icon38%

Wind Icon15.6km/h
Sun. 23, Aug.
sunnySunny

Temperature Icon30°/15°

Humidity Icon37%

Wind Icon15.3km/h
Mon. 24, Aug.
moderate or heavy rain showerRain Showers

Temperature Icon30°/16°

Humidity Icon36%

Wind Icon15.6km/h
Tue. 25, Aug.
patchy rain possibleRain Possible

Temperature Icon30°/16°

Humidity Icon36%

Wind Icon15km/h
Wed. 26, Aug.
sunnySunny

Temperature Icon31°/16°

Humidity Icon36%

Wind Icon15.3km/h
Thu. 27, Aug.
sunnySunny

Temperature Icon31°/16°

Humidity Icon34%

Wind Icon15km/h
Fri. 28, Aug.
patchy rain possibleRain Possible

Temperature Icon31°/16°

Humidity Icon34%

Wind Icon15.3km/h
Sat. 29, Aug.
patchy rain possibleRain Possible

Temperature Icon30°/16°

Humidity Icon37%

Wind Icon14.8km/h
Sun. 30, Aug.
sunnySunny

Temperature Icon30°/16°

Humidity Icon33%

Wind Icon14.8km/h
Mon. 31, Aug.
patchy rain possibleRain Possible

Temperature Icon30°/15°

Humidity Icon32%

Wind Icon15.2km/h
Tue. 1, Sep.
moderate rain at timesRain

Temperature Icon30°/16°

Humidity Icon34%

Wind Icon15.2km/h
Wed. 2, Sep.
heavy rain at timesHeavy Rain

Temperature Icon30°/16°

Humidity Icon34%

Wind Icon15.1km/h
Thu. 3, Sep.
moderate rain at timesRain

Temperature Icon30°/16°

Humidity Icon36%

Wind Icon14.7km/h
Fri. 4, Sep.
sunnySunny

Temperature Icon30°/16°

Humidity Icon35%

Wind Icon15.1km/h
Sat. 5, Sep.
patchy rain possibleRain Possible

Temperature Icon30°/16°

Humidity Icon36%

Wind Icon15.4km/h
Sun. 6, Sep.
patchy rain possibleRain Possible

Temperature Icon31°/16°

Humidity Icon34%

Wind Icon14.8km/h
Mon. 7, Sep.
sunnySunny

Temperature Icon30°/15°

Humidity Icon34%

Wind Icon15.5km/h
Tue. 8, Sep.
patchy rain possibleRain Possible

Temperature Icon29°/16°

Humidity Icon35%

Wind Icon15.4km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onSun. 9, Aug.

37°C


Low will be onSat. 22, Aug.

15°C

HumidityHumidity

High will be onThu. 13, Aug.

41%


Low will be onMon. 10, Aug.

16%

Wind SpeedWind Speed

High will be onMon. 10, Aug.

15.8km/h


Low will be onSun. 16, Aug.

8.3km/h

PrecipitationPrecipitation

High will be onFri. 21, Aug.

1.7mm


Low will be onThu. 20, Aug.

0.01mm

Ultraviolet IndexUV

High will be onSun. 9, Aug.

9.5


Low will be onMon. 17, Aug.

5