Allentown, Pennsylvania, United States Climate Change Severity

48
High
The current climate change severity in Allentown is High, with a 8.9% 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 Oct. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C (c)

Allentown 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), Allentown temperature has changed by around +0.5%, 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
5538
-30.9%
cloudyCloudy
8044
-45%
rainyRainy
11969
-42.01%
snowySnowy
64
-33.3%
mistyMisty
023
100%

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

Climate Change Indicators:

Over the past 15 years, Allentown has experienced measurable shifts in key climate parameters, contributing to the current severity score of 48 (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

48/100

High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Allentown experienced significant changes:

Temperature change of

+0.07 °C

Variation in annual rainfall

+58.5 %

Change in average humidity

-3.3 %

PM2.5 levels surged by

+100 %

Heatwave changed by

-1.5 day(s)

Coldwave changed by

-4.8 day(s)

Wind speeds changed by

+2.003 km/h

These indicators show that Allentown 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 Oct.

Allentown Weather Forecast 30 Days (November - December 2025)
Allentown, Pennsylvania, United States

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Mon. 3, Nov.
sunnySunny
Temperature Icon16°/5°
Humidity Icon75%
Wind Icon27km/h
Tue. 4, Nov.
sunnySunny
Temperature Icon16°/4°
Humidity Icon65%
Wind Icon25km/h
Wed. 5, Nov.
partly cloudyPartly Cloudy
Temperature Icon15°/3°
Humidity Icon61%
Wind Icon40km/h
Thu. 6, Nov.
sunnySunny
Temperature Icon12°/3°
Humidity Icon62%
Wind Icon35km/h
Fri. 7, Nov.
sunnySunny
Temperature Icon14°/2°
Humidity Icon62%
Wind Icon28km/h
Sat. 8, Nov.
moderate rainModerate rain
Temperature Icon12°/6°
Humidity Icon85%
Wind Icon23km/h
Sun. 9, Nov.
cloudyCloudy
Temperature Icon15°/4°
Humidity Icon82%
Wind Icon29km/h
Mon. 10, Nov.
partly cloudyPartly Cloudy
Temperature Icon5°/-1°
Humidity Icon54%
Wind Icon27km/h
Tue. 11, Nov.
sunnySunny
Temperature Icon6°/-3°
Humidity Icon56%
Wind Icon21km/h
Wed. 12, Nov.
partly cloudyPartly Cloudy
Temperature Icon13°/2°
Humidity Icon59%
Wind Icon22km/h
Thu. 13, Nov.
partly cloudyPartly Cloudy
Temperature Icon9°/2°
Humidity Icon69%
Wind Icon26km/h
Fri. 14, Nov.
sunnySunny
Temperature Icon5°/-1°
Humidity Icon62%
Wind Icon28km/h
Sat. 15, Nov.
sunnySunny
Temperature Icon6°/-2°
Humidity Icon58%
Wind Icon24km/h
Sun. 16, Nov.
partly cloudyPartly Cloudy
Temperature Icon7°/-5°
Humidity Icon56%
Wind Icon8km/h
Mon. 17, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon10°/2°
Humidity Icon77%
Wind Icon18km/h
Tue. 18, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon10°/1°
Humidity Icon77%
Wind Icon19km/h
Wed. 19, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon9°/1°
Humidity Icon75%
Wind Icon19km/h
Thu. 20, Nov.
heavy rain at timesHeavy rain at times
Temperature Icon9°/1°
Humidity Icon73%
Wind Icon18km/h
Fri. 21, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/0°
Humidity Icon73%
Wind Icon17km/h
Sun. 23, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/0°
Humidity Icon72%
Wind Icon19km/h
Mon. 24, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/0°
Humidity Icon76%
Wind Icon18km/h
Tue. 25, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon9°/1°
Humidity Icon77%
Wind Icon14km/h
Wed. 26, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon10°/2°
Humidity Icon81%
Wind Icon17km/h
Thu. 27, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/1°
Humidity Icon80%
Wind Icon20km/h
Fri. 28, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon7°/0°
Humidity Icon76%
Wind Icon19km/h
Sat. 29, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon7°/-1°
Humidity Icon76%
Wind Icon16km/h
Sun. 30, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/0°
Humidity Icon80%
Wind Icon17km/h
Mon. 1, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/0°
Humidity Icon83%
Wind Icon18km/h
Tue. 2, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/1°
Humidity Icon83%
Wind Icon17km/h
Wed. 3, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon9°/1°
Humidity Icon81%
Wind Icon19km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onMon. 3, Nov.

16°C

Low will be onSun. 16, Nov.

-4.6°C

HumidityHumidity

High will be onSat. 8, Nov.

85%

Low will be onMon. 10, Nov.

54%

Wind SpeedWind Speed

High will be onWed. 5, Nov.

40km/h

Low will be onSun. 16, Nov.

7.9km/h

PrecipitationPrecipitation

High will be onWed. 26, Nov.

7.7mm

Low will be onSun. 16, Nov.

0.01mm

Ultraviolet IndexUV

High will be onWed. 12, Nov.

3

Low will be onTue. 18, Nov.

1

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