Chilliwack, British Columbia Weather by Month and Climate Averages

How much rain does Chilliwack get?

Chilliwack gets 1398 mm of precipitation in an average year, spread over about 138 days with measurable rain. That is more rainy days than 62% of Canada.

November is the wettest month, with 212 mm. July is the driest, with 38 mm. November has the most rainy days, about 16.

Does it snow in Chilliwack?

The snowiest winter on record is 1996–97, with 256 cm.

The most recent measurable snow at the station fell on January 16, 2024.

Chilliwack weather by month

Chilliwack weather in January

In January, Chilliwack averages a high of 7°C and a low of 1°C. It gets 208 mm of precipitation over about 16 rainy days. The sun is out about 12% of daylight hours. The January record high is 19°C (2005) and the record low is -15°C (2024).

Chilliwack weather in February

In February, Chilliwack averages a high of 9°C and a low of 2°C. It gets 110 mm of precipitation over about 12 rainy days. The sun is out about 18% of daylight hours. The February record high is 18°C (1988) and the record low is -17°C (1989).

Chilliwack weather in March

In March, Chilliwack averages a high of 12°C and a low of 4°C. It gets 142 mm of precipitation over about 14 rainy days. The sun is out about 26% of daylight hours. The March record high is 24°C (1994) and the record low is -7°C (2002).

Chilliwack weather in April

In April, Chilliwack averages a high of 16°C and a low of 6°C. It gets 108 mm of precipitation over about 13 rainy days. The sun is out about 29% of daylight hours. The April record high is 30°C (1998) and the record low is 1°C (2001).

Chilliwack weather in May

In May, Chilliwack averages a high of 19°C and a low of 9°C. It gets 75 mm of precipitation over about 11 rainy days. The sun is out about 29% of daylight hours. The May record high is 34°C (2023) and the record low is 3°C (2013). May is one of the most comfortable months to visit.

Chilliwack weather in June

In June, Chilliwack averages a high of 22°C and a low of 12°C. It gets 71 mm of precipitation over about 11 rainy days. The sun is out about 32% of daylight hours. The June record high is 42°C (2021) and the record low is 4°C (2015). June is one of the most comfortable months to visit.

Chilliwack weather in July

In July, Chilliwack averages a high of 25°C and a low of 14°C. It gets 38 mm of precipitation over about 6 rainy days. The sun is out about 58% of daylight hours. The July record high is 37°C (2006) and the record low is 6°C (2015). July is one of the most comfortable months to visit.

Chilliwack weather in August

In August, Chilliwack averages a high of 26°C and a low of 14°C. It gets 40 mm of precipitation over about 6 rainy days. The sun is out about 50% of daylight hours. The August record high is 38°C (2017) and the record low is 4°C (2017). August is one of the most comfortable months to visit.

Chilliwack weather in September

In September, Chilliwack averages a high of 22°C and a low of 11°C. It gets 67 mm of precipitation over about 7 rainy days. The sun is out about 41% of daylight hours. The September record high is 36°C (1988) and the record low is 1°C (2015). September is one of the most comfortable months to visit.

Chilliwack weather in October

In October, Chilliwack averages a high of 16°C and a low of 8°C. It gets 150 mm of precipitation over about 12 rainy days. The sun is out about 28% of daylight hours. The October record high is 28°C (2022) and the record low is -2°C (1991).

Chilliwack weather in November

In November, Chilliwack averages a high of 10°C and a low of 4°C. It gets 212 mm of precipitation over about 16 rainy days. The sun is out about 20% of daylight hours. The November record high is 21°C (2016) and the record low is -14°C (1985).

Chilliwack weather in December

In December, Chilliwack averages a high of 7°C and a low of 2°C. It gets 177 mm of precipitation over about 15 rainy days. The sun is out about 17% of daylight hours. The December record high is 18°C (2014) and the record low is -15°C (2021).

Sunshine, humidity and wind in Chilliwack

July is the sunniest month in Chilliwack, with sunshine about 58% of daylight hours. January is the cloudiest, at 12%. Over the year the sun shines about 30% of daylight hours. Chilliwack is cloudier than 85% of Canada.

Humidity peaks in December at 87% and is lowest in April at 69%.

Chilliwack has about 4 days a year above 32°C. Chilliwack is cooler than 52% of Canada.

First and last freeze in Chilliwack

The first fall freeze in Chilliwack typically comes around November 18, and the last spring freeze around February 28. That leaves a frost-free growing season of about 263 days.

Chilliwack weather records

The hottest temperature on record at the Chilliwack station is 42°C, on June 28, 2021. The coldest is -17°C, on February 2, 1989.

The wettest day on record brought 126 mm of rain, on December 27, 2022.

43 all-time records have been set at the station since 1970.

The best time to visit Chilliwack

The most comfortable time to visit is typically May to September, when daytime highs sit near 23°C.

Winter (December–February) is chilly, with average highs around 8°C and lows near 2°C. Snow is possible.

Spring (March–May) is mild, with average highs around 16°C and lows near 7°C.

Summer (June–August) is warm, with average highs around 24°C and lows near 13°C. It can feel humid.

Autumn (September–November) is mild, with average highs around 16°C and lows near 8°C.

Chilliwack climate questions

How much rain does Chilliwack get?

Chilliwack gets 1398 mm of precipitation in an average year, over about 138 rainy days.

What is the wettest month in Chilliwack?

November is the wettest month in Chilliwack, with 212 mm. July is the driest, with 38 mm.

How many rainy days does Chilliwack have a year?

Chilliwack has about 138 days with measurable rain in an average year. November has the most, about 16.

What is the hottest month in Chilliwack?

August is the warmest month in Chilliwack, with an average high of 26°C.

What is the coldest month in Chilliwack?

January is the coldest month in Chilliwack, with an average low of 1°C.

What is the record high temperature in Chilliwack?

The record high at the Chilliwack station is 42°C, set on June 28, 2021. The record low is -17°C, on February 2, 1989.

What is the sunniest month in Chilliwack?

July is the sunniest month in Chilliwack, with sunshine about 58% of daylight hours. January is the cloudiest.

When is the first frost in Chilliwack?

The first fall freeze in Chilliwack typically comes around November 18. The last spring freeze is around February 28.

What is the best time to visit Chilliwack?

The most comfortable time to visit is typically May to September, when daytime highs sit near 23°C.