Tempe, Arizona, United States Climate Change Severity

33
Moderate
The current climate change severity in Tempe is Moderate, with a -38.5% 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 Jun. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100


Tempe Weather Condition Changes (Historic Vs 2025)

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

Over the past 15 year(s), Tempe temperature has changed by around -0.1%, and has experienced notable climate changes.

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

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
130108
-16.9%

cloudyCloudy
3828
-26.3%

rainyRainy
2620
-23.07%

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, Tempe has experienced measurable improvements in key climate parameters, contributing to the current severity score of 33 (within the Moderate severity category). This suggests improving climate conditions compared to previous years. Here’s a breakdown of the specific changes observed:

Severity Score

33/100


Moderate

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Tempe experienced significant changes:

Temperature change of

-0.03 °C


Variation in annual rainfall

-16.1 %


Change in average humidity

+3.8 %


PM2.5 levels surged by

+11.4 %


Heatwave changed by

+0.7 day(s)


Coldwave changed by

-1.2 day(s)


Wind speeds changed by

-0.2 km/h


These indicators show reduced climate volatility, offering a valuable window to reinforce sustainable practices and strengthen long-term climate resilience. As the severity shifts toward Moderate, it is important to maintain momentum in climate adaptation efforts.

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

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


Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Sun. 10, Aug.
sunnySunny

Temperature Icon41°/29°

Humidity Icon33%

Wind Icon24km/h
Mon. 11, Aug.
sunnySunny

Temperature Icon42°/30°

Humidity Icon32%

Wind Icon19km/h
Tue. 12, Aug.
patchy rain possiblePatchy rain nearby

Temperature Icon43°/31°

Humidity Icon25%

Wind Icon25km/h
Wed. 13, Aug.
sunnySunny

Temperature Icon42°/31°

Humidity Icon25%

Wind Icon26km/h
Thu. 14, Aug.
sunnySunny

Temperature Icon42°/32°

Humidity Icon24%

Wind Icon30km/h
Fri. 15, Aug.
patchy rain possiblePatchy rain nearby

Temperature Icon40°/30°

Humidity Icon37%

Wind Icon27km/h
Sat. 16, Aug.
patchy rain possiblePatchy rain nearby

Temperature Icon38°/27°

Humidity Icon44%

Wind Icon23km/h
Sun. 17, Aug.
sunnySunny

Temperature Icon38°/30°

Humidity Icon37%

Wind Icon11km/h
Mon. 18, Aug.
sunnySunny

Temperature Icon39°/32°

Humidity Icon24%

Wind Icon12km/h
Tue. 19, Aug.
sunnySunny

Temperature Icon42°/33°

Humidity Icon15%

Wind Icon14km/h
Wed. 20, Aug.
sunnySunny

Temperature Icon43°/34°

Humidity Icon12%

Wind Icon17km/h
Thu. 21, Aug.
sunnySunny

Temperature Icon42°/33°

Humidity Icon25%

Wind Icon22km/h
Fri. 22, Aug.
moderate rainModerate rain

Temperature Icon33°/25°

Humidity Icon50%

Wind Icon25km/h
Sat. 23, Aug.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon39°/28°

Humidity Icon35%

Wind Icon14km/h
Sun. 24, Aug.
patchy rain possiblePatchy rain possible

Temperature Icon39°/28°

Humidity Icon34%

Wind Icon15km/h
Mon. 25, Aug.
moderate rain at timesModerate rain at times

Temperature Icon39°/29°

Humidity Icon34%

Wind Icon14km/h
Tue. 26, Aug.
moderate rain at timesModerate rain at times

Temperature Icon40°/29°

Humidity Icon31%

Wind Icon15km/h
Wed. 27, Aug.
patchy rain possiblePatchy rain possible

Temperature Icon41°/29°

Humidity Icon29%

Wind Icon14km/h
Thu. 28, Aug.
moderate rain at timesModerate rain at times

Temperature Icon41°/29°

Humidity Icon27%

Wind Icon16km/h
Fri. 29, Aug.
heavy rain at timesHeavy rain at times

Temperature Icon40°/29°

Humidity Icon30%

Wind Icon14km/h
Sat. 30, Aug.
moderate rain at timesModerate rain at times

Temperature Icon40°/29°

Humidity Icon30%

Wind Icon16km/h
Sun. 31, Aug.
patchy rain possiblePatchy rain possible

Temperature Icon39°/29°

Humidity Icon31%

Wind Icon16km/h
Mon. 1, Sep.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon38°/28°

Humidity Icon33%

Wind Icon14km/h
Tue. 2, Sep.
patchy rain possiblePatchy rain possible

Temperature Icon39°/28°

Humidity Icon33%

Wind Icon13km/h
Wed. 3, Sep.
sunnySunny

Temperature Icon40°/28°

Humidity Icon30%

Wind Icon16km/h
Thu. 4, Sep.
patchy rain possiblePatchy rain possible

Temperature Icon40°/28°

Humidity Icon29%

Wind Icon15km/h
Fri. 5, Sep.
patchy rain possiblePatchy rain possible

Temperature Icon39°/28°

Humidity Icon28%

Wind Icon13km/h
Sat. 6, Sep.
patchy rain possiblePatchy rain possible

Temperature Icon40°/28°

Humidity Icon29%

Wind Icon14km/h
Sun. 7, Sep.
moderate rain at timesModerate rain at times

Temperature Icon38°/28°

Humidity Icon35%

Wind Icon13km/h
Mon. 8, Sep.
moderate or heavy rain showerModerate or heavy rain shower

Temperature Icon37°/27°

Humidity Icon36%

Wind Icon16km/h
Tue. 9, Sep.
heavy rain at timesHeavy rain at times

Temperature Icon36°/26°

Humidity Icon36%

Wind Icon15km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onTue. 12, Aug.

42.8°C


Low will be onFri. 22, Aug.

25.3°C

HumidityHumidity

High will be onFri. 22, Aug.

50%


Low will be onWed. 20, Aug.

12%

Wind SpeedWind Speed

High will be onThu. 14, Aug.

30.2km/h


Low will be onSun. 17, Aug.

11.2km/h

PrecipitationPrecipitation

High will be onFri. 22, Aug.

6.04mm


Low will be onWed. 13, Aug.

0.01mm

Ultraviolet IndexUV

High will be onThu. 14, Aug.

9


Low will be onFri. 15, Aug.

7