Saint-Louis-de-Terrebonne, Quebec Weather by Month and Climate Averages

Saint-Louis-de-Terrebonne, Quebec gets 940 mm of precipitation a year over about 161 rainy days. July is the warmest month (average high 27°C) and January the coldest (average low -14°C).

Saint-Louis-de-Terrebonne climate at a glance

Humid continental climate

Saint-Louis-de-Terrebonne, Quebec has warm summers and cold winters. Daytime highs range from about -5°C in January to 27°C in July. October is usually the wettest month, and snow falls in winter. The most comfortable time to visit is typically May to June and August to September, when daytime highs sit near 23°C.

How much rain does Saint-Louis-de-Terrebonne get?

Saint-Louis-de-Terrebonne gets 940 mm of precipitation in an average year, spread over about 161 days with measurable rain. That is more rainy days than 80% of Canada.

October is the wettest month, with 98 mm. February is the driest, with 50 mm. September has the most rainy days, about 20.

The longest dry spell in the last five years lasted 16 days, to October 5, 2023.

Does it snow in Saint-Louis-de-Terrebonne?

The snowiest winter on record is 1975–76, with 280 cm.

The most recent measurable snow at the station fell on March 22, 2024.

Saint-Louis-de-Terrebonne weather by month

Saint-Louis-de-Terrebonne weather in January

In January, Saint-Louis-de-Terrebonne averages a high of -5°C and a low of -14°C. It gets 64 mm of precipitation over about 10 rainy days. The sun is out about 33% of daylight hours. The January record high is 12°C (1973) and the record low is -37°C (1994).

Saint-Louis-de-Terrebonne weather in February

In February, Saint-Louis-de-Terrebonne averages a high of -3°C and a low of -14°C. It gets 50 mm of precipitation over about 9 rainy days. The sun is out about 36% of daylight hours. The February record high is 14°C (2024) and the record low is -34°C (1987).

Saint-Louis-de-Terrebonne weather in March

In March, Saint-Louis-de-Terrebonne averages a high of 3°C and a low of -7°C. It gets 57 mm of precipitation over about 9 rainy days. The sun is out about 34% of daylight hours. The March record high is 26°C (2012) and the record low is -29°C (1989).

Saint-Louis-de-Terrebonne weather in April

In April, Saint-Louis-de-Terrebonne averages a high of 12°C and a low of 1°C. It gets 84 mm of precipitation over about 10 rainy days. The sun is out about 38% of daylight hours. The April record high is 32°C (1990) and the record low is -17°C (1995).

Saint-Louis-de-Terrebonne weather in May

In May, Saint-Louis-de-Terrebonne averages a high of 19°C and a low of 8°C. It gets 83 mm of precipitation over about 13 rainy days. The sun is out about 43% of daylight hours. The May record high is 34°C (2020) and the record low is -4°C (1986). May is one of the most comfortable months to visit.

Saint-Louis-de-Terrebonne weather in June

In June, Saint-Louis-de-Terrebonne averages a high of 24°C and a low of 13°C. It gets 92 mm of precipitation over about 15 rainy days. The sun is out about 38% of daylight hours. The June record high is 34°C (2001) and the record low is 0°C (1986). June is one of the most comfortable months to visit.

Saint-Louis-de-Terrebonne weather in July

In July, Saint-Louis-de-Terrebonne averages a high of 27°C and a low of 16°C. It gets 90 mm of precipitation over about 16 rainy days. The sun is out about 43% of daylight hours. The July record high is 36°C (2002) and the record low is 6°C (1982).

Saint-Louis-de-Terrebonne weather in August

In August, Saint-Louis-de-Terrebonne averages a high of 26°C and a low of 15°C. It gets 89 mm of precipitation over about 19 rainy days. The sun is out about 41% of daylight hours. The August record high is 34°C (2001) and the record low is 2°C (1986). August is one of the most comfortable months to visit.

Saint-Louis-de-Terrebonne weather in September

In September, Saint-Louis-de-Terrebonne averages a high of 21°C and a low of 11°C. It gets 87 mm of precipitation over about 20 rainy days. The sun is out about 48% of daylight hours. The September record high is 33°C (2002) and the record low is -4°C (1980). September is one of the most comfortable months to visit.

Saint-Louis-de-Terrebonne weather in October

In October, Saint-Louis-de-Terrebonne averages a high of 13°C and a low of 4°C. It gets 98 mm of precipitation over about 18 rainy days. The sun is out about 39% of daylight hours. The October record high is 28°C (2023) and the record low is -8°C (1997).

Saint-Louis-de-Terrebonne weather in November

In November, Saint-Louis-de-Terrebonne averages a high of 6°C and a low of -2°C. It gets 75 mm of precipitation over about 12 rainy days. The sun is out about 37% of daylight hours. The November record high is 25°C (2022) and the record low is -22°C (1995).

Saint-Louis-de-Terrebonne weather in December

In December, Saint-Louis-de-Terrebonne averages a high of -1°C and a low of -9°C. It gets 71 mm of precipitation over about 10 rainy days. The sun is out about 28% of daylight hours. The December record high is 17°C (2015) and the record low is -32°C (1993).

Sunshine, humidity and wind in Saint-Louis-de-Terrebonne

September is the sunniest month in Saint-Louis-de-Terrebonne, with sunshine about 48% of daylight hours. December is the cloudiest, at 28%. Over the year the sun shines about 38% of daylight hours. Saint-Louis-de-Terrebonne is sunnier than 68% of Canada.

Humidity peaks in January at 78% and is lowest in May at 54%.

Saint-Louis-de-Terrebonne has about 4 days a year above 32°C. Saint-Louis-de-Terrebonne is hotter than 52% of Canada.

First and last freeze in Saint-Louis-de-Terrebonne

The first fall freeze in Saint-Louis-de-Terrebonne typically comes around October 9, and the last spring freeze around April 30. That leaves a frost-free growing season of about 162 days.

Saint-Louis-de-Terrebonne weather records

The hottest temperature on record at the Saint-Louis-de-Terrebonne station is 36°C, on July 3, 2002. The coldest is -37°C, on January 27, 1994.

The wettest day on record brought 112 mm of rain, on November 8, 1996.

34 all-time records have been set at the station since 1973.

The annual mean temperature has changed by +0.4°C per decade since 1973.

The best time to visit Saint-Louis-de-Terrebonne

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

Winter (December–February) is cold, with average highs around -3°C and lows near -12°C. Snow is possible.

Spring (March–May) is chilly, with average highs around 11°C and lows near 0°C.

Summer (June–August) is warm, with average highs around 26°C and lows near 15°C. It can feel humid.

Autumn (September–November) is mild, with average highs around 13°C and lows near 4°C.

Monthly climate

MonthPrecipRain daysHumiditySunshineRecord highRecord low
January64 mm1078%33%12°-37°
February50 mm972%36%14°-34°
March57 mm966%34%26°-29°
April84 mm1057%38%32°-17°
May83 mm1354%43%34°-4°
June92 mm1566%38%34°
July90 mm1671%43%36°
August89 mm1975%41%34°
September87 mm2075%48%33°-4°
October98 mm1874%39%28°-8°
November75 mm1272%37%25°-22°
December71 mm1077%28%17°-32°

From ERA5 reanalysis. Sunshine is estimated from cloud cover.

Saint-Louis-de-Terrebonne climate questions

How much rain does Saint-Louis-de-Terrebonne get?

Saint-Louis-de-Terrebonne gets 940 mm of precipitation in an average year, over about 161 rainy days.

What is the wettest month in Saint-Louis-de-Terrebonne?

October is the wettest month in Saint-Louis-de-Terrebonne, with 98 mm. February is the driest, with 50 mm.

How many rainy days does Saint-Louis-de-Terrebonne have a year?

Saint-Louis-de-Terrebonne has about 161 days with measurable rain in an average year. September has the most, about 20.

What is the hottest month in Saint-Louis-de-Terrebonne?

July is the warmest month in Saint-Louis-de-Terrebonne, with an average high of 27°C.

What is the coldest month in Saint-Louis-de-Terrebonne?

January is the coldest month in Saint-Louis-de-Terrebonne, with an average low of -14°C.

What is the record high temperature in Saint-Louis-de-Terrebonne?

The record high at the Saint-Louis-de-Terrebonne station is 36°C, set on July 3, 2002. The record low is -37°C, on January 27, 1994.

What is the sunniest month in Saint-Louis-de-Terrebonne?

September is the sunniest month in Saint-Louis-de-Terrebonne, with sunshine about 48% of daylight hours. December is the cloudiest.

When is the first frost in Saint-Louis-de-Terrebonne?

The first fall freeze in Saint-Louis-de-Terrebonne typically comes around October 9. The last spring freeze is around April 30.

What is the best time to visit Saint-Louis-de-Terrebonne?

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

Source: NOAA GHCN-Daily station RIVIERE DES PRAIRIES (22 km away).

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Normals from NOAA GHCN-Daily station RIVIERE DES PRAIRIES.