New Haven, Connecticut, United States Climate Change Severity

48
High
The current climate change severity in New Haven is High, with a 0.3% worsening in the climate score compared to last 16 years. This suggests deteriorating conditions, with increasing negative impacts on weather patterns and environmental conditions.
Data: Jan. to Jul. (Historical Vs 2026) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C

New Haven Weather Condition Changes (Historic Vs 2026)

2026
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Historic
2026

Over the past 16 year(s), New Haven temperature has changed by around -1.05%, and has experienced notable climate changes.

Sunny
Cloudy
Rainy
Snowy
Misty
Data: Jan. to Jul. (Historical Vs 2026)

Comparison of Weather Condition (Historic Vs 2026)

HistoricDays

Year 2026Days

Change

sunnySunny
4287
107.1%
cloudyCloudy
5921
-64.4%
rainyRainy
7651
-32.8%
snowySnowy
59
80%
mistyMisty
13
200%

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

Climate Change Indicators:

Over the past 16 years, New Haven 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 2026, New Haven experienced significant changes:

Temperature change of

-0.11 °C

Variation in annual rainfall

+30.39 %

Change in average humidity

-1.51 %

PM2.5 levels surged by

-28.02 %

Heatwave changed by

+3 Days

Coldwave changed by

-2 Days

Wind speeds changed by

+0.17 km/h

These indicators show that New Haven 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 Jul.

New Haven Weather Forecast 30 Days (August - September 2026)
New Haven, Connecticut, United States

Condition
Temperature IconTemperature
Humidity IconHumi.
Wind IconWind Speed
Sun. 9, Aug.
sunnySunny
Temperature Icon35°/22°
Humidity Icon69%
Wind Icon15.8km/h
Mon. 10, Aug.
sunnySunny
Temperature Icon30°/19°
Humidity Icon55%
Wind Icon13km/h
Tue. 11, Aug.
sunnySunny
Temperature Icon30°/21°
Humidity Icon81%
Wind Icon13.3km/h
Wed. 12, Aug.
partly cloudyPartly Cloudy
Temperature Icon29°/21°
Humidity Icon76%
Wind Icon25.9km/h
Thu. 13, Aug.
sunnySunny
Temperature Icon28°/18°
Humidity Icon68%
Wind Icon14km/h
Fri. 14, Aug.
sunnySunny
Temperature Icon28°/20°
Humidity Icon68%
Wind Icon25.6km/h
Sat. 15, Aug.
sunnySunny
Temperature Icon27°/17°
Humidity Icon58%
Wind Icon15.1km/h
Sun. 16, Aug.
sunnySunny
Temperature Icon25°/17°
Humidity Icon51%
Wind Icon14.8km/h
Mon. 17, Aug.
heavy rain at timesHeavy Rain
Temperature Icon28°/20°
Humidity Icon74%
Wind Icon17.3km/h
Tue. 18, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon27°/20°
Humidity Icon75%
Wind Icon17km/h
Wed. 19, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon26°/19°
Humidity Icon73%
Wind Icon15.9km/h
Thu. 20, Aug.
heavy rain at timesHeavy Rain
Temperature Icon27°/19°
Humidity Icon72%
Wind Icon15.7km/h
Fri. 21, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon27°/19°
Humidity Icon77%
Wind Icon17.7km/h
Sat. 22, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon26°/19°
Humidity Icon75%
Wind Icon19.1km/h
Sun. 23, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon26°/19°
Humidity Icon73%
Wind Icon17.6km/h
Mon. 24, Aug.
heavy rain at timesHeavy Rain
Temperature Icon26°/19°
Humidity Icon72%
Wind Icon16.5km/h
Tue. 25, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon27°/19°
Humidity Icon75%
Wind Icon17.4km/h
Wed. 26, Aug.
heavy rain at timesHeavy Rain
Temperature Icon27°/19°
Humidity Icon71%
Wind Icon16km/h
Thu. 27, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon27°/19°
Humidity Icon72%
Wind Icon15.6km/h
Fri. 28, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon26°/18°
Humidity Icon76%
Wind Icon19km/h
Sat. 29, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon26°/19°
Humidity Icon73%
Wind Icon16.9km/h
Sun. 30, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon27°/18°
Humidity Icon71%
Wind Icon17km/h
Mon. 31, Aug.
moderate rain at timesRain
Temperature Icon26°/19°
Humidity Icon70%
Wind Icon17.1km/h
Tue. 1, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon25°/18°
Humidity Icon73%
Wind Icon17.4km/h
Wed. 2, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon25°/18°
Humidity Icon73%
Wind Icon17.1km/h
Thu. 3, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon25°/18°
Humidity Icon76%
Wind Icon16.5km/h
Fri. 4, Sep.
moderate rain at timesRain
Temperature Icon26°/18°
Humidity Icon74%
Wind Icon17.4km/h
Sat. 5, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon25°/18°
Humidity Icon75%
Wind Icon18.8km/h
Sun. 6, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon24°/18°
Humidity Icon77%
Wind Icon19.6km/h
Mon. 7, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon24°/17°
Humidity Icon78%
Wind Icon18.8km/h
Tue. 8, Sep.
moderate or heavy rain showerRain Showers
Temperature Icon25°/17°
Humidity Icon75%
Wind Icon18.5km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onSun. 9, Aug.

35°C

Low will be onSat. 15, Aug.

17°C

HumidityHumidity

High will be onTue. 11, Aug.

81%

Low will be onSun. 16, Aug.

51%

Wind SpeedWind Speed

High will be onWed. 12, Aug.

25.9km/h

Low will be onMon. 10, Aug.

13km/h

PrecipitationPrecipitation

High will be onFri. 14, Aug.

11.3mm

Low will be onMon. 10, Aug.

0.1mm

Ultraviolet IndexUV

High will be onSun. 9, Aug.

8.1

Low will be onWed. 12, Aug.

5

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