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Saint-Hyacinthe May Weather

Averages and records for weather in Saint-Hyacinthe, Quebec in the month of May.

Typical Saint-Hyacinthe May Weather 1991–2020
Average daily high	19.6 °C
Average daily low	7.7 °C
Average monthly precipitation	9.4 cm
Average monthly snow	none
Daily chance of precipitation	43.7%
Daily chance of snow	0%

Saint-Hyacinthe May Weather Records 1890–2024
Highest temperature	35.5 °C	May 27, 2020
Lowest temperature	-5.6 °C	May 2, 1943
Highest daily low	25.6 °C	May 29, 1978
Lowest daily high	1.1 °C	May 1, 1963
Hottest average high temperature	23.7 °C	1998
Coldest average high temperature	15.5 °C	1997
Most daily precipitation	4.8 cm	May 17, 1945
Most monthly precipitation	20.8 cm	2006
Most daily snow	8.9 cm	May 20, 1936
Most monthly snow	8.9 cm	1936

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°C)		Record (°C)
Day	High	Low	High	Low
May 1	16.0	4.3	29.0	-3.9
May 2	16.2	4.5	30.0	-5.6
May 3	16.5	4.8	31.0	-4.4
May 4	16.6	5.0	31.1	-3.3
May 5	16.9	5.1	28.9	-3.3
May 6	17.1	5.3	30.0	-3.3
May 7	17.4	5.5	31.0	-3.3
May 8	17.6	5.7	30.2	-4.4
May 9	17.9	6.0	32.2	-1.7
May 10	18.2	6.3	32.5	-2.8
May 11	18.5	6.5	32.8	-3.3
May 12	18.7	6.8	32.0	-1.1
May 13	19.0	7.0	32.1	-4.0
May 14	19.2	7.3	33.0	-1.7
May 15	19.4	7.5	31.7	-4.4
May 16	19.6	7.8	31.1	-1.1
May 17	19.7	7.9	30.0	-2.2
May 18	19.9	8.1	31.1	-4.2
May 19	20.0	8.3	32.8	-2.2
May 20	20.1	8.5	31.7	-2.2
May 21	20.2	8.6	32.5	-3.3
May 22	20.3	8.8	32.8	-0.6
May 23	20.4	9.0	32.2	-1.1
May 24	20.6	9.1	32.0	-2.8
May 25	20.7	9.3	34.0	-1.0
May 26	20.9	9.5	34.5	-3.0
May 27	21.1	9.7	35.5	-2.2
May 28	21.3	9.9	33.3	1.7
May 29	21.5	10.2	33.3	1.5
May 30	21.7	10.4	32.8	-1.1
May 31	21.9	10.6	33.0	-1.7

Weather Station Details

Years	Station	Coordinates
1964–2024	Saint-Hyacinthe 2	location
1890–1963	Saint-Hyacinthe	location