Alta Sierra, California, United States Climate Change Severity

43
High
The current climate change severity in Alta Sierra is High, with a 23.9% improvement in the climate score compared to last 15 years. This suggests improved conditions, with more favorable environmental indicators and a reduction in negative impacts.
Data: Jan. to Oct. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C (c)

Alta Sierra 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), Alta Sierra temperature has changed by around +7.2%, and has experienced notable climate changes.

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

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
168160
-4.7%
cloudyCloudy
5150
-1.9%
rainyRainy
6747
-29.8%
snowySnowy
10
-100%
mistyMisty
01
100%

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

Climate Change Indicators:

Over the past 15 years, Alta Sierra has experienced measurable shifts in key climate parameters, contributing to the current severity score of 43 (within the High severity category). While the score remains High, certain factors have improved over time. Here’s a breakdown of the specific changes observed:

Severity Score

43/100

High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Alta Sierra experienced significant changes:

Temperature change of

+1.1 °C

Variation in annual rainfall

+12.5 %

Change in average humidity

+0.1 %

PM2.5 levels surged by

-44.5 %

Heatwave changed by

-8.06 day(s)

Coldwave changed by

-4.4 day(s)

Wind speeds changed by

-0.2 km/h

These indicators show improvement in key parametes of climate, but Alta Sierra remains in the High severity category. Continuous focus on climate resilience is necessary to avoid further worsening and ensure sustainability.

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

Alta Sierra Weather Forecast 30 Days (November - December 2025)
Alta Sierra, California, United States

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Thu. 20, Nov.
moderate rainModerate rain
Temperature Icon9°/5°
Humidity Icon87%
Wind Icon7km/h
Fri. 21, Nov.
sunnySunny
Temperature Icon16°/4°
Humidity Icon59%
Wind Icon10km/h
Sat. 22, Nov.
sunnySunny
Temperature Icon17°/8°
Humidity Icon60%
Wind Icon8km/h
Sun. 23, Nov.
sunnySunny
Temperature Icon16°/6°
Humidity Icon66%
Wind Icon8km/h
Mon. 24, Nov.
sunnySunny
Temperature Icon17°/7°
Humidity Icon68%
Wind Icon8km/h
Tue. 25, Nov.
overcastOvercast
Temperature Icon16°/9°
Humidity Icon65%
Wind Icon7km/h
Wed. 26, Nov.
sunnySunny
Temperature Icon18°/8°
Humidity Icon57%
Wind Icon8km/h
Thu. 27, Nov.
sunnySunny
Temperature Icon18°/8°
Humidity Icon57%
Wind Icon8km/h
Fri. 28, Nov.
patchy rain possiblePatchy rain nearby
Temperature Icon14°/8°
Humidity Icon70%
Wind Icon8km/h
Sat. 29, Nov.
patchy rain possiblePatchy rain nearby
Temperature Icon9°/5°
Humidity Icon92%
Wind Icon8km/h
Sun. 30, Nov.
sunnySunny
Temperature Icon13°/4°
Humidity Icon76%
Wind Icon9km/h
Mon. 1, Dec.
sunnySunny
Temperature Icon14°/4°
Humidity Icon67%
Wind Icon7km/h
Tue. 2, Dec.
sunnySunny
Temperature Icon16°/7°
Humidity Icon64%
Wind Icon7km/h
Wed. 3, Dec.
sunnySunny
Temperature Icon17°/8°
Humidity Icon68%
Wind Icon9km/h
Thu. 4, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon13°/5°
Humidity Icon63%
Wind Icon12km/h
Fri. 5, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon13°/5°
Humidity Icon62%
Wind Icon12km/h
Sat. 6, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/4°
Humidity Icon66%
Wind Icon14km/h
Sun. 7, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/4°
Humidity Icon68%
Wind Icon13km/h
Mon. 8, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/3°
Humidity Icon63%
Wind Icon13km/h
Tue. 9, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/3°
Humidity Icon63%
Wind Icon14km/h
Wed. 10, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/4°
Humidity Icon65%
Wind Icon16km/h
Thu. 11, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/4°
Humidity Icon69%
Wind Icon13km/h
Fri. 12, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/4°
Humidity Icon76%
Wind Icon12km/h
Sat. 13, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon10°/3°
Humidity Icon73%
Wind Icon14km/h
Sun. 14, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon10°/3°
Humidity Icon74%
Wind Icon14km/h
Mon. 15, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon10°/2°
Humidity Icon68%
Wind Icon13km/h
Tue. 16, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/3°
Humidity Icon66%
Wind Icon14km/h
Wed. 17, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/3°
Humidity Icon69%
Wind Icon13km/h
Thu. 18, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/3°
Humidity Icon69%
Wind Icon12km/h
Fri. 19, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/3°
Humidity Icon69%
Wind Icon14km/h
Sat. 20, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/4°
Humidity Icon67%
Wind Icon13km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onThu. 27, Nov.

17.6°C

Low will be onMon. 15, Dec.

2.4°C

HumidityHumidity

High will be onSat. 29, Nov.

92%

Low will be onWed. 26, Nov.

57%

Wind SpeedWind Speed

High will be onWed. 10, Dec.

15.5km/h

Low will be onThu. 20, Nov.

6.8km/h

PrecipitationPrecipitation

High will be onWed. 10, Dec.

20.3mm

Low will be onSat. 29, Nov.

2.1mm

Ultraviolet IndexUV

High will be onWed. 26, Nov.

4

Low will be onFri. 28, Nov.

2

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