Montreal · Canada

Montreal in May: every year compared

In May, Montreal averages highs of 17.9 °C and lows of 7.2 °C, with 100 mm of precipitation. The warmest May was 1998 (16.4 °C), the coldest 1967 (8.6 °C).

Avg. highAvg. high 17.9 °C

Avg. lowAvg. low 7.2 °C

PrecipitationPrecipitation 100 mm

Rainy daysRainy days 12

Day by day through May

Normal high and low for each day of May in Montreal.

Normal high and low, day by dayNormal 1991–2020

Every May in Montreal, ranked

86 months of May since 1940. The last one, 2025, ranks 33 of 86 (±0.0 °C vs normal).

194019832025

2025 · 12.8 °C · ±0.0 °C vs normal · rank 33 of 86

Warmest years

1199816.4 °C
2197516.1 °C
3199915.5 °C
4201515.3 °C
5196015.1 °C

Coldest years

119678.6 °C
219568.9 °C
319459.4 °C
419979.6 °C
519749.6 °C

All 86 years in a table

Year	Mean temperature	Daytime highs	Night lows	Precipitation	Hot days (30 °C+)	Frost days	Snowfall	Rainy days
2025	12.8 °C	17.5 °C	8.3 °C	112 mm	0 days	1 day	0 cm	19 days
2024	15.1 °C	19.8 °C	10.3 °C	96 mm	0 days	0 days	0 cm	15 days
2023	12.7 °C	18.8 °C	6.2 °C	80 mm	1 day	1 day	0 cm	9 days
2022	14.6 °C	20.6 °C	8.5 °C	97 mm	1 day	0 days	0 cm	10 days
2021	13.3 °C	18.7 °C	7.4 °C	18 mm	1 day	0 days	0 cm	6 days
2020	12.7 °C	18.1 °C	6.6 °C	35 mm	3 days	6 days	0 cm	9 days
2019	10.7 °C	15.3 °C	6.1 °C	145 mm	0 days	0 days	0 cm	17 days
2018	14.2 °C	20.0 °C	8.2 °C	74 mm	0 days	0 days	0 cm	10 days
2017	12.0 °C	16.5 °C	7.5 °C	175 mm	0 days	1 day	0 cm	14 days
2016	13.3 °C	19.0 °C	7.3 °C	38 mm	0 days	0 days	1 cm	8 days
2015	15.3 °C	21.3 °C	8.8 °C	72 mm	0 days	0 days	0 cm	12 days
2014	13.1 °C	18.2 °C	7.7 °C	106 mm	0 days	1 day	0 cm	12 days
2013	14.1 °C	19.6 °C	8.2 °C	130 mm	1 day	1 day	0 cm	13 days
2012	14.4 °C	19.5 °C	8.9 °C	88 mm	0 days	0 days	0 cm	13 days
2011	12.7 °C	17.1 °C	8.4 °C	201 mm	0 days	0 days	0 cm	18 days
2010	14.5 °C	20.0 °C	8.2 °C	26 mm	2 days	3 days	0 cm	7 days
2009	11.6 °C	16.3 °C	6.3 °C	166 mm	0 days	0 days	0 cm	13 days
2008	11.3 °C	16.2 °C	5.6 °C	67 mm	0 days	1 day	0 cm	11 days
2007	12.6 °C	18.2 °C	6.3 °C	71 mm	1 day	0 days	0 cm	9 days
2006	13.1 °C	17.6 °C	8.5 °C	168 mm	0 days	1 day	0 cm	18 days
2005	10.4 °C	14.7 °C	5.6 °C	65 mm	0 days	3 days	0 cm	11 days
2004	12.5 °C	17.5 °C	6.6 °C	77 mm	0 days	1 day	0 cm	13 days
2003	12.0 °C	17.2 °C	6.5 °C	111 mm	0 days	2 days	0 cm	14 days
2002	10.4 °C	15.0 °C	5.1 °C	140 mm	0 days	2 days	0 cm	17 days
2001	14.2 °C	19.9 °C	8.2 °C	61 mm	0 days	0 days	0 cm	11 days
2000	12.2 °C	16.8 °C	7.1 °C	162 mm	0 days	2 days	0 cm	13 days
1999	15.5 °C	21.5 °C	9.3 °C	71 mm	1 day	0 days	0 cm	7 days
1998	16.4 °C	21.9 °C	10.4 °C	75 mm	0 days	0 days	0 cm	11 days
1997	9.6 °C	13.8 °C	5.0 °C	82 mm	0 days	1 day	0 cm	13 days
1996	11.3 °C	16.4 °C	5.8 °C	116 mm	0 days	0 days	0 cm	10 days
1995	12.3 °C	17.2 °C	6.8 °C	85 mm	0 days	1 day	0 cm	9 days
1994	11.3 °C	16.7 °C	5.7 °C	127 mm	0 days	2 days	0 cm	13 days
1993	12.3 °C	17.2 °C	7.3 °C	91 mm	0 days	1 day	0 cm	14 days
1992	12.7 °C	18.9 °C	6.0 °C	77 mm	0 days	2 days	0 cm	10 days
1991	14.2 °C	19.9 °C	8.1 °C	94 mm	0 days	0 days	0 cm	9 days
1990	11.0 °C	16.0 °C	5.5 °C	94 mm	0 days	1 day	0 cm	13 days
1989	13.6 °C	18.9 °C	8.4 °C	136 mm	2 days	0 days	0 cm	16 days
1988	13.9 °C	19.5 °C	8.2 °C	41 mm	0 days	1 day	0 cm	8 days
1987	12.5 °C	17.9 °C	6.2 °C	79 mm	0 days	5 days	0 cm	14 days
1986	13.1 °C	18.6 °C	8.1 °C	152 mm	0 days	2 days	0 cm	14 days
1985	12.8 °C	18.5 °C	7.0 °C	52 mm	0 days	1 day	0 cm	10 days
1984	10.7 °C	15.0 °C	6.2 °C	148 mm	0 days	1 day	0 cm	13 days
1983	10.6 °C	15.0 °C	5.7 °C	173 mm	0 days	1 day	0 cm	17 days
1982	14.0 °C	19.8 °C	8.1 °C	27 mm	0 days	0 days	0 cm	6 days
1981	12.9 °C	18.3 °C	7.2 °C	86 mm	0 days	2 days	0 cm	10 days
1980	12.8 °C	18.5 °C	6.8 °C	54 mm	0 days	0 days	0 cm	9 days
1979	13.2 °C	17.8 °C	8.0 °C	99 mm	1 day	1 day	0 cm	15 days
1978	14.9 °C	21.0 °C	8.5 °C	49 mm	5 days	2 days	1 cm	9 days
1977	14.7 °C	21.1 °C	7.5 °C	20 mm	4 days	2 days	0 cm	4 days
1976	11.3 °C	16.7 °C	5.6 °C	138 mm	0 days	2 days	5 cm	17 days
1975	16.1 °C	22.1 °C	9.1 °C	83 mm	3 days	0 days	0 cm	10 days
1974	9.6 °C	14.1 °C	4.9 °C	176 mm	0 days	5 days	0 cm	22 days
1973	11.3 °C	15.6 °C	6.8 °C	148 mm	0 days	1 day	0 cm	15 days
1972	13.2 °C	19.0 °C	6.7 °C	67 mm	0 days	2 days	0 cm	11 days
1971	12.2 °C	17.9 °C	5.9 °C	86 mm	0 days	1 day	0 cm	12 days
1970	11.8 °C	16.8 °C	5.8 °C	71 mm	0 days	3 days	4 cm	12 days
1969	10.3 °C	15.2 °C	4.0 °C	97 mm	0 days	6 days	0 cm	13 days
1968	11.3 °C	16.5 °C	5.3 °C	66 mm	0 days	2 days	0 cm	9 days
1967	8.6 °C	13.1 °C	2.8 °C	75 mm	0 days	6 days	6 cm	11 days
1966	9.9 °C	15.2 °C	4.2 °C	60 mm	0 days	10 days	0 cm	11 days
1965	12.6 °C	18.4 °C	6.3 °C	43 mm	0 days	1 day	0 cm	12 days
1964	13.4 °C	19.1 °C	7.4 °C	90 mm	0 days	0 days	0 cm	11 days
1963	10.6 °C	16.4 °C	4.7 °C	111 mm	0 days	7 days	12 cm	15 days
1962	12.9 °C	18.1 °C	7.6 °C	74 mm	1 day	2 days	0 cm	8 days
1961	10.3 °C	15.4 °C	4.9 °C	110 mm	0 days	6 days	3 cm	15 days
1960	15.1 °C	20.6 °C	9.8 °C	76 mm	0 days	0 days	0 cm	11 days
1959	13.9 °C	19.9 °C	7.6 °C	42 mm	0 days	0 days	0 cm	8 days
1958	10.3 °C	15.0 °C	5.0 °C	91 mm	0 days	3 days	0 cm	17 days
1957	11.5 °C	16.7 °C	6.1 °C	79 mm	0 days	1 day	0 cm	9 days
1956	8.9 °C	14.2 °C	2.9 °C	123 mm	0 days	9 days	0 cm	15 days
1955	14.1 °C	19.5 °C	8.3 °C	56 mm	0 days	0 days	0 cm	13 days
1954	11.2 °C	15.5 °C	6.3 °C	129 mm	0 days	1 day	0 cm	15 days
1953	13.0 °C	18.1 °C	7.7 °C	112 mm	0 days	0 days	0 cm	12 days
1952	10.4 °C	15.2 °C	5.3 °C	132 mm	0 days	3 days	0 cm	15 days
1951	12.2 °C	17.6 °C	6.3 °C	50 mm	0 days	1 day	0 cm	6 days
1950	11.9 °C	17.4 °C	5.9 °C	64 mm	0 days	5 days	0 cm	11 days
1949	11.7 °C	17.2 °C	5.4 °C	70 mm	0 days	1 day	0 cm	13 days
1948	10.6 °C	15.2 °C	5.8 °C	89 mm	0 days	2 days	0 cm	15 days
1947	9.6 °C	14.6 °C	4.7 °C	129 mm	0 days	5 days	1 cm	18 days
1946	10.2 °C	14.8 °C	5.5 °C	128 mm	0 days	3 days	0 cm	13 days
1945	9.4 °C	13.4 °C	5.5 °C	158 mm	0 days	1 day	0 cm	17 days
1944	13.3 °C	19.2 °C	7.6 °C	76 mm	0 days	1 day	0 cm	13 days
1943	10.1 °C	15.1 °C	5.1 °C	156 mm	0 days	4 days	1 cm	16 days
1942	12.6 °C	17.3 °C	8.0 °C	111 mm	0 days	0 days	0 cm	11 days
1941	10.6 °C	16.1 °C	4.9 °C	41 mm	0 days	4 days	0 cm	10 days
1940	11.9 °C	16.8 °C	7.4 °C	128 mm	0 days	1 day	0 cm	19 days

May records

Hottest day

35.0 °C

May 27, 2020 estimate

Nearby station: 35.8 °C on May 27, 2020 measured

Coldest night

-5.1 °C

May 7, 1966 estimate

Nearby station: -5.4 °C on May 8, 2020 measured

Wettest day

55 mm

May 26, 1943 estimate

The weather on your birthday in Montreal

Any day since 1940: high, low, rain, snow, and how warm it was compared with the same date in every other year.

Questions & answers

How warm is Montreal in May?

Highs average 17.9 °C and lows 7.2 °C. A typical May brings 0 hot days (30 °C or more) and 1 frost days.

Does it rain a lot in Montreal in May?

About 100 mm falls in May, over some 12 days with at least 1 mm. The wettest May was 2011 (201 mm), the driest 2021 (18 mm).

What was the warmest May in Montreal?

1998, with a mean temperature of 16.4 °C. The coldest was 1967 (8.6 °C). The last one, 2025, ranks 33 of 86.