Moncton Temperatures: Averages by Month





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

The average high and low temperatures are listed below monthly and annually for Moncton, 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 Moncton, 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 Moncton temperatures
High °F Low °F   High °C Low °C
26 8 January -3 -13
29 10 February -2 -12
37 19 March 3 -7
48 31 April 9 -1
62 41 May 17 5
71 50 June 22 10
77 57 July 25 14
77 56 August 25 13
68 48 September 20 9
56 38 October 13 3
44 29 November 6 -1
32 17 December 0 -8
52 34 Year 11 1

Days of Hot Weather in Moncton

The hottest days of summer in Moncton have highs in the low thirties Celsius (over 86 °F). While the thermometer has been known to climb above 35 °C (95 °F), it happens only rarely, less than once a decade.

Days per month in Moncton above 10, 20 or 30 °C
  10 °C
50 °F
20 °C
68 °F
30 °C
86 °F
January 1 0 0
February 1 0 0
March 2 0 0
April 12 1 0
May 26 9 0
June 30 19 1
July 31 28 3
August 31 27 2
September 30 14 0
October 21 2 0
November 7 0 0
December 2 0 0
Year 194 99 7

When Moncton Has Frosty Weather

Moncton typically has 167 days a year when the minimum temperature is at 0 °C or below. The average date for the last frost in spring is May 23. Frost normally returns here on October 2. The frost-free period extends for 131 days on average between the final spring frost and the first fall frost.

Average number of days with freezing temperatures in Moncton
  0 °C
32 °F
January 30
February 27
March 28
April 19
May 5
June 0
July 0
August 0
September 1
October 10
November 19
December 28
Year 167

How Often Moncton Has Cold Temperatures

Moncton's chilliest winter nights have lows in the minus-twenties °C (below -3 °F). The city averages just 14 nights a year, mostly in January and February, when the thermometer drops that low. Temperatures less than -30 °C (-22 °F) can occur, but typically only once in five years.

From November to April, it can remain below freezing here all day long. Moncton typically has 70 days a year when the temperature never rises above 0 °C.

Days per month on average in Moncton when the minimum temperature drops below -2, -10, or -20 °C
  -2 °C
28 °F
-10 °C
14 °F
-20 °C
-4 °F
January 28 20 6
February 25 17 5
March 22 9 2
April 9 0 0
May 1 0 0
June 0 0 0
July 0 0 0
August 0 0 0
September 0 0 0
October 4 0 0
November 13 1 0
December 24 12 2
Year 126 59 14
Reference

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

New Brunswick Temperatures
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