Chilliwack, British Columbia, Canada Climate Change Severity

62
Very High
The current climate change severity in Chilliwack is Very High, with a 46.09% 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 Sep. (Historical Vs 2026) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100


Chilliwack Weather Condition Changes (Historic Vs 2026)

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

Over the past 16 year(s), Chilliwack temperature has changed by around +18.6%, and has experienced notable climate changes.

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

Comparison of Weather Condition (Historic Vs 2026)

HistoricDays

Year 2026Days

Change

sunnySunny
59134
127.1%

cloudyCloudy
4711
-76.5%

rainyRainy
13355
-58.6%

snowySnowy
66
0%

mistyMisty
29
350%

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

Climate Change Indicators:

Over the past 16 years, Chilliwack has experienced measurable shifts in key climate parameters, contributing to the current severity score of 62 (within the Very High severity category). This suggests worsening climate conditions from the previous years. Here’s a breakdown of the specific changes observed:

Severity Score

62/100


Very High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2026, Chilliwack experienced significant changes:

Temperature change of

+2 °C


Variation in annual rainfall

+85.18 %


Change in average humidity

-14.69 %


PM2.5 levels surged by

-14.82 %


Heatwave changed by

+3 Days


Coldwave changed by

-6 Days


Wind speeds changed by

+0.14 km/h


These indicators show a dramatic increase in volatility and worsening conditions. Chilliwack's Very High severity status requires urgent and immediate adaptation and mitigation strategies, particularly focused on managing extreme weather events, improving air quality, and ensuring water resources are adequate for the population.

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

Chilliwack Weather Forecast 30 Days (October - November 2026)
Chilliwack, British Columbia, Canada


Condition
Temperature IconTemperature
Humidity IconHumi.
Wind IconWind Speed
Sat. 3, Oct.
sunnySunny

Temperature Icon25°/8°

Humidity Icon75%

Wind Icon9.4km/h
Sun. 4, Oct.
sunnySunny

Temperature Icon24°/8°

Humidity Icon71%

Wind Icon9km/h
Mon. 5, Oct.
sunnySunny

Temperature Icon20°/7°

Humidity Icon82%

Wind Icon8.6km/h
Tue. 6, Oct.
mistMist

Temperature Icon20°/6°

Humidity Icon84%

Wind Icon7.9km/h
Wed. 7, Oct.
mistMist

Temperature Icon21°/6°

Humidity Icon76%

Wind Icon8.3km/h
Thu. 8, Oct.
overcastOvercast

Temperature Icon22°/8°

Humidity Icon76%

Wind Icon7.2km/h
Fri. 9, Oct.
mistMist

Temperature Icon14°/8°

Humidity Icon94%

Wind Icon9km/h
Sat. 10, Oct.
light drizzleLight Drizzle

Temperature Icon12°/4°

Humidity Icon91%

Wind Icon4.7km/h
Sun. 11, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon13°/6°

Humidity Icon79%

Wind Icon7.8km/h
Mon. 12, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon14°/6°

Humidity Icon78%

Wind Icon7.1km/h
Tue. 13, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon14°/6°

Humidity Icon78%

Wind Icon9.5km/h
Wed. 14, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon14°/6°

Humidity Icon79%

Wind Icon9.3km/h
Thu. 15, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon15°/7°

Humidity Icon77%

Wind Icon8.2km/h
Fri. 16, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon14°/7°

Humidity Icon81%

Wind Icon9.7km/h
Sat. 17, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon13°/7°

Humidity Icon84%

Wind Icon8.7km/h
Sun. 18, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon13°/6°

Humidity Icon85%

Wind Icon7.8km/h
Mon. 19, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon15°/7°

Humidity Icon86%

Wind Icon7.5km/h
Tue. 20, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon13°/6°

Humidity Icon88%

Wind Icon7.8km/h
Wed. 21, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon13°/6°

Humidity Icon88%

Wind Icon8.2km/h
Thu. 22, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon13°/6°

Humidity Icon84%

Wind Icon8.2km/h
Fri. 23, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon12°/5°

Humidity Icon86%

Wind Icon8.7km/h
Sat. 24, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon11°/4°

Humidity Icon84%

Wind Icon9.4km/h
Sun. 25, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon11°/4°

Humidity Icon83%

Wind Icon10.5km/h
Mon. 26, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon10°/4°

Humidity Icon86%

Wind Icon9.8km/h
Tue. 27, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon11°/4°

Humidity Icon83%

Wind Icon10km/h
Wed. 28, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon10°/5°

Humidity Icon84%

Wind Icon8.5km/h
Thu. 29, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon10°/4°

Humidity Icon85%

Wind Icon8.7km/h
Fri. 30, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon11°/5°

Humidity Icon83%

Wind Icon10.1km/h
Sat. 31, Oct.
moderate or heavy rain showerRain Showers

Temperature Icon10°/5°

Humidity Icon85%

Wind Icon9.5km/h
Sun. 1, Nov.
moderate or heavy rain showerRain Showers

Temperature Icon10°/5°

Humidity Icon87%

Wind Icon8.7km/h
Mon. 2, Nov.
moderate or heavy rain showerRain Showers

Temperature Icon10°/4°

Humidity Icon89%

Wind Icon8.1km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onSat. 3, Oct.

25°C


Low will be onSat. 10, Oct.

4°C

HumidityHumidity

High will be onFri. 9, Oct.

94%


Low will be onSun. 4, Oct.

71%

Wind SpeedWind Speed

High will be onSun. 25, Oct.

10.5km/h


Low will be onSat. 10, Oct.

4.7km/h

PrecipitationPrecipitation

High will be onMon. 19, Oct.

21.8mm


Low will be onMon. 12, Oct.

3.9mm

Ultraviolet IndexUV

High will be onThu. 8, Oct.

5


Low will be onSun. 11, Oct.

2