Phoenix, Arizona, United States Climate Change Severity

52
High
The current climate change severity in Phoenix is High, with a 0.6% 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 Sep. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C (c)

Phoenix 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), Phoenix temperature has changed by around +0.001%, and has experienced notable climate changes.

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

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
165169
2.4%
cloudyCloudy
4940
-18.3%
rainyRainy
3817
-55.2%
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, Phoenix has experienced measurable shifts in key climate parameters, contributing to the current severity score of 52 (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

52/100

High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Phoenix experienced significant changes:

Temperature change of

+0.0004 °C

Variation in annual rainfall

-40.03 %

Change in average humidity

+5.5 %

PM2.5 levels surged by

+7.1 %

Heatwave changed by

-5.5 day(s)

Coldwave changed by

-2.7 day(s)

Wind speeds changed by

+2.6 km/h

These indicators show that Phoenix 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 Sep.

Phoenix Weather Forecast 30 Days (October - November 2025)
Phoenix, Arizona, United States

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Fri. 3, Oct.
sunnySunny
Temperature Icon39°/21°
Humidity Icon30%
Wind Icon28km/h
Sat. 4, Oct.
sunnySunny
Temperature Icon33°/20°
Humidity Icon33%
Wind Icon15km/h
Sun. 5, Oct.
sunnySunny
Temperature Icon32°/16°
Humidity Icon29%
Wind Icon11km/h
Mon. 6, Oct.
sunnySunny
Temperature Icon33°/23°
Humidity Icon16%
Wind Icon10km/h
Tue. 7, Oct.
sunnySunny
Temperature Icon35°/25°
Humidity Icon17%
Wind Icon12km/h
Wed. 8, Oct.
sunnySunny
Temperature Icon35°/27°
Humidity Icon19%
Wind Icon10km/h
Thu. 9, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon30°/27°
Humidity Icon36%
Wind Icon28km/h
Fri. 10, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon27°/24°
Humidity Icon64%
Wind Icon18km/h
Sat. 11, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon28°/24°
Humidity Icon63%
Wind Icon33km/h
Sun. 12, Oct.
sunnySunny
Temperature Icon34°/25°
Humidity Icon46%
Wind Icon11km/h
Mon. 13, Oct.
sunnySunny
Temperature Icon37°/29°
Humidity Icon33%
Wind Icon11km/h
Tue. 14, Oct.
sunnySunny
Temperature Icon38°/30°
Humidity Icon26%
Wind Icon10km/h
Wed. 15, Oct.
sunnySunny
Temperature Icon37°/31°
Humidity Icon29%
Wind Icon19km/h
Thu. 16, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon35°/27°
Humidity Icon48%
Wind Icon25km/h
Fri. 17, Oct.
patchy rain possiblePatchy rain possible
Temperature Icon33°/20°
Humidity Icon28%
Wind Icon13km/h
Sat. 18, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon32°/19°
Humidity Icon30%
Wind Icon15km/h
Sun. 19, Oct.
patchy rain possiblePatchy rain possible
Temperature Icon32°/19°
Humidity Icon28%
Wind Icon13km/h
Mon. 20, Oct.
heavy rain at timesHeavy rain at times
Temperature Icon31°/19°
Humidity Icon29%
Wind Icon13km/h
Wed. 22, Oct.
patchy rain possiblePatchy rain possible
Temperature Icon32°/18°
Humidity Icon30%
Wind Icon11km/h
Thu. 23, Oct.
patchy rain possiblePatchy rain possible
Temperature Icon31°/19°
Humidity Icon31%
Wind Icon13km/h
Fri. 24, Oct.
sunnySunny
Temperature Icon30°/18°
Humidity Icon28%
Wind Icon12km/h
Sat. 25, Oct.
patchy rain possiblePatchy rain possible
Temperature Icon31°/18°
Humidity Icon30%
Wind Icon14km/h
Sun. 26, Oct.
sunnySunny
Temperature Icon29°/18°
Humidity Icon28%
Wind Icon14km/h
Mon. 27, Oct.
sunnySunny
Temperature Icon30°/17°
Humidity Icon24%
Wind Icon15km/h
Tue. 28, Oct.
sunnySunny
Temperature Icon29°/16°
Humidity Icon25%
Wind Icon15km/h
Wed. 29, Oct.
patchy rain possiblePatchy rain possible
Temperature Icon29°/16°
Humidity Icon27%
Wind Icon12km/h
Thu. 30, Oct.
patchy rain possiblePatchy rain possible
Temperature Icon28°/15°
Humidity Icon26%
Wind Icon13km/h
Fri. 31, Oct.
sunnySunny
Temperature Icon28°/15°
Humidity Icon25%
Wind Icon11km/h
Sat. 1, Nov.
sunnySunny
Temperature Icon29°/15°
Humidity Icon25%
Wind Icon12km/h
Sun. 2, Nov.
patchy rain possiblePatchy rain possible
Temperature Icon28°/16°
Humidity Icon25%
Wind Icon12km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onFri. 3, Oct.

39°C

Low will be onFri. 31, Oct.

14.6°C

HumidityHumidity

High will be onFri. 10, Oct.

64%

Low will be onMon. 6, Oct.

16%

Wind SpeedWind Speed

High will be onSat. 11, Oct.

32.8km/h

Low will be onMon. 6, Oct.

9.7km/h

PrecipitationPrecipitation

High will be onFri. 10, Oct.

4.8mm

Low will be onWed. 22, Oct.

0.1mm

Ultraviolet IndexUV

High will be onWed. 8, Oct.

8

Low will be onMon. 20, Oct.

5

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