Tucson, Arizona, United States Climate Change Severity

43
High
The current climate change severity in Tucson is High, with a -16.01% 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 Jul. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C

Tucson 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), Tucson temperature has changed by around -0.7%, 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
123127
3.2%
cloudyCloudy
3846
21.05%
rainyRainy
3418
-47.05%
snowySnowy
00
0%
mistyMisty
00
0%

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

Climate Change Indicators:

Over the past 15 years, Tucson 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, Tucson experienced significant changes:

Temperature change of

-0.1 °C

Variation in annual rainfall

-54.1 %

Change in average humidity

+3.9 %

PM2.5 levels surged by

+100 %

Heatwave changed by

-8.2 day(s)

Coldwave changed by

+1.8 day(s)

Wind speeds changed by

+0.03 km/h

These indicators show improvement in key parametes of climate, but Tucson 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 Jul.

Tucson Weather Forecast 30 Days (August - September 2025)
Tucson, Arizona, United States

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Fri. 8, Aug.
sunnySunny
Temperature Icon43°/24°
Humidity Icon34%
Wind Icon26km/h
Sat. 9, Aug.
sunnySunny
Temperature Icon42°/26°
Humidity Icon32%
Wind Icon32km/h
Sun. 10, Aug.
sunnySunny
Temperature Icon41°/23°
Humidity Icon35%
Wind Icon24km/h
Mon. 11, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon39°/27°
Humidity Icon34%
Wind Icon19km/h
Tue. 12, Aug.
sunnySunny
Temperature Icon40°/27°
Humidity Icon30%
Wind Icon18km/h
Wed. 13, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon40°/27°
Humidity Icon29%
Wind Icon16km/h
Thu. 14, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon39°/28°
Humidity Icon35%
Wind Icon24km/h
Fri. 15, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon36°/24°
Humidity Icon47%
Wind Icon21km/h
Sat. 16, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon35°/27°
Humidity Icon47%
Wind Icon16km/h
Sun. 17, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon33°/25°
Humidity Icon50%
Wind Icon32km/h
Mon. 18, Aug.
sunnySunny
Temperature Icon36°/25°
Humidity Icon44%
Wind Icon16km/h
Tue. 19, Aug.
sunnySunny
Temperature Icon38°/28°
Humidity Icon29%
Wind Icon23km/h
Wed. 20, Aug.
sunnySunny
Temperature Icon39°/28°
Humidity Icon27%
Wind Icon16km/h
Thu. 21, Aug.
sunnySunny
Temperature Icon39°/29°
Humidity Icon29%
Wind Icon16km/h
Fri. 22, Aug.
heavy rain at timesHeavy rain at times
Temperature Icon36°/25°
Humidity Icon42%
Wind Icon14km/h
Sat. 23, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon36°/25°
Humidity Icon42%
Wind Icon17km/h
Sun. 24, Aug.
moderate rain at timesModerate rain at times
Temperature Icon36°/25°
Humidity Icon40%
Wind Icon16km/h
Mon. 25, Aug.
moderate rain at timesModerate rain at times
Temperature Icon36°/26°
Humidity Icon40%
Wind Icon17km/h
Tue. 26, Aug.
heavy rain at timesHeavy rain at times
Temperature Icon37°/26°
Humidity Icon38%
Wind Icon15km/h
Wed. 27, Aug.
heavy rain at timesHeavy rain at times
Temperature Icon38°/26°
Humidity Icon34%
Wind Icon16km/h
Thu. 28, Aug.
patchy rain possiblePatchy rain possible
Temperature Icon38°/26°
Humidity Icon33%
Wind Icon17km/h
Fri. 29, Aug.
moderate rain at timesModerate rain at times
Temperature Icon37°/25°
Humidity Icon35%
Wind Icon16km/h
Sat. 30, Aug.
heavy rain at timesHeavy rain at times
Temperature Icon37°/26°
Humidity Icon37%
Wind Icon19km/h
Sun. 31, Aug.
heavy rain at timesHeavy rain at times
Temperature Icon37°/26°
Humidity Icon39%
Wind Icon19km/h
Mon. 1, Sep.
moderate rain at timesModerate rain at times
Temperature Icon36°/25°
Humidity Icon39%
Wind Icon16km/h
Tue. 2, Sep.
moderate rain at timesModerate rain at times
Temperature Icon36°/25°
Humidity Icon40%
Wind Icon16km/h
Wed. 3, Sep.
patchy rain possiblePatchy rain possible
Temperature Icon37°/25°
Humidity Icon36%
Wind Icon17km/h
Thu. 4, Sep.
patchy rain possiblePatchy rain possible
Temperature Icon37°/25°
Humidity Icon34%
Wind Icon17km/h
Fri. 5, Sep.
patchy rain possiblePatchy rain possible
Temperature Icon36°/25°
Humidity Icon34%
Wind Icon16km/h
Sat. 6, Sep.
patchy rain possiblePatchy rain possible
Temperature Icon36°/25°
Humidity Icon35%
Wind Icon15km/h
Sun. 7, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon35°/25°
Humidity Icon41%
Wind Icon16km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onFri. 8, Aug.

42.6°C

Low will be onSun. 10, Aug.

22.6°C

HumidityHumidity

High will be onSun. 17, Aug.

50%

Low will be onWed. 20, Aug.

27%

Wind SpeedWind Speed

High will be onSat. 9, Aug.

32km/h

Low will be onFri. 22, Aug.

13.7km/h

PrecipitationPrecipitation

High will be onSat. 23, Aug.

3.1mm

Low will be onTue. 12, Aug.

0.01mm

Ultraviolet IndexUV

High will be onTue. 19, Aug.

8

Low will be onFri. 15, Aug.

6

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