Montréal Temperatures: Averages by Month





The numbers here tell you how hot and cold the weather usually is in Montréal, Quebec during each month of the year.

The average high and low temperatures are listed below monthly and annually for the city, in both degrees Fahrenheit and Celsius.

Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.

To find out how often it rises over 10, 20 or 30 °C each month in Montréal, scroll down farther. There are also monthly and yearly counts of days with frost and cold weather.

All the numbers are long-term historical averages based on climate data gathered from 1981 to 2010.

Average Montréal temperatures
High °F Low °F   High °C Low °C
22 7 January -5 -14
26 10 February -3 -12
37 20 March 3 -7
53 34 April 12 1
66 46 May 19 8
75 56 June 24 13
79 61 July 26 16
77 59 August 25 15
69 50 September 21 10
55 39 October 13 4
43 29 November 6 -2
29 15 December -1 -9
53 36 Year 12 2

Days of Hot Weather in Montréal

Montréal usually has nine days a year with temperatures in the low-thirties Celsius. The 30-degree weather can show up here anytime during summer months, and occasionally as early as May.

Days per month in Montréal above 10, 20 or 30 °C
  10 °C
50 °F
20 °C
68 °F
30 °C
86 °F
January 0 0 0
February 0 0 0
March 3 0 0
April 17 3 0
May 30 12 0
June 30 24 2
July 31 30 4
August 31 29 2
September 30 17 1
October 22 3 0
November 6 0 0
December 1 0 0
Year 201 117 9

When Montréal Has Frosty Weather

Montréal typically has 148 days a year when the minimum temperature is at 0 °C or below. The average date for the last frost in spring is April 29. Frost normally returns here on October 11. The frost-free period extends for 165 days on average between the final spring frost and the first fall frost.

Average number of days with freezing temperatures in Montréal
  0 °C
32 °F
January 30
February 27
March 26
April 11
May 1
June 0
July 0
August 0
September 0
October 6
November 19
December 28
Year 148

How Often Montréal Has Cold Temperatures

Montréal's chilliest winter nights have lows in the minus-twenties °C. The city averages 14 nights a year, mostly in January, when the thermometer drops that low. Temperatures below -30 °C (-22 °F) occur just two of three times a decade.

From November to April, Montréal can remain below freezing all day long. The city typically has 74 days a year when the temperature never rises above 0 °C.

Days per month on average in Montréal when the minimum temperature drops below -2, -10, or -20 °C
  -2 °C
28 °F
-10 °C
14 °F
-20 °C
-4 °F
January 29 21 8
February 25 17 4
March 22 9 1
April 6 0 0
May 0 0 0
June 0 0 0
July 0 0 0
August 0 0 0
September 0 0 0
October 2 0 0
November 13 1 0
December 26 13 2
Year 124 63 14
Reference

Environment Canada. Meteorological Service of Canada. Canadian Climate Normals. 1981-2010 Climate Normals & Averages.

Quebec Temperatures
Back to Top