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Welland May Weather

Averages and records for weather in Welland, Ontario in the month of May.

Typical Welland May Weather 1991–2020
Average daily high	19.7 °C
Average daily low	7.8 °C
Average monthly precipitation	8.1 cm
Average monthly snow	none
Daily chance of precipitation	46.1%
Daily chance of snow	0%

Welland May Weather Records 1872–2024
Highest temperature	34.0 °C	May 30, 2006
Lowest temperature	-6.1 °C	May 6, 1932
Highest daily low	21.5 °C	May 29, 2012
Lowest daily high	2.8 °C	May 8, 2020
Hottest average high temperature	23.4 °C	1911
Coldest average high temperature	14.6 °C	1919
Most daily precipitation	5.4 cm	May 31, 2015
Most monthly precipitation	19.6 cm	1894
Most daily snow	13.0 cm	May 14, 1895
Most monthly snow	13.0 cm	1895

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	16.5	4.9	30.6	-4.0
May 2	16.7	5.0	27.2	-2.8
May 3	16.9	5.3	28.3	-4.4
May 4	17.1	5.4	30.6	-3.9
May 5	17.2	5.5	32.8	-2.8
May 6	17.4	5.7	29.0	-6.1
May 7	17.7	5.8	30.6	-5.6
May 8	17.9	6.0	30.3	-2.5
May 9	18.1	6.2	30.4	-2.2
May 10	18.3	6.5	30.6	-3.9
May 11	18.5	6.7	30.6	-2.8
May 12	18.8	6.9	29.4	-2.7
May 13	19.1	7.1	30.0	-6.0
May 14	19.3	7.4	29.4	-6.0
May 15	19.5	7.6	28.3	-1.1
May 16	19.7	7.8	30.0	-1.7
May 17	19.9	8.0	30.6	-2.0
May 18	20.0	8.2	30.0	-3.0
May 19	20.2	8.4	31.7	-2.0
May 20	20.3	8.6	31.7	-0.6
May 21	20.4	8.7	32.8	-2.8
May 22	20.5	8.8	33.9	-1.7
May 23	20.6	9.0	30.5	-1.9
May 24	20.8	9.2	30.0	-1.7
May 25	20.9	9.3	30.6	0.0
May 26	21.1	9.5	31.9	0.0
May 27	21.4	9.7	31.5	0.0
May 28	21.6	10.0	32.3	1.0
May 29	21.8	10.3	32.5	0.0
May 30	22.0	10.5	34.0	0.6
May 31	22.2	10.7	32.5	1.7

Weather Station Details

Years	Station	Coordinates
2015–2024	Welland-Pelham	location
1872–2014	Welland	location