Canadian Rockies Weather in May: Temperature, Snow, Precipitation Averages

The tables here list the normal May temperatures, snowfall and precipitation at towns, lakes and other places in Canada's Rocky Mountain parks.

The weather information covers five national parks, from Waterton Lakes in the south to Jasper in the north.

There are also climate data for adjacent provincial parks in the Rockies of Alberta's Kananaskis Country and in British Columbia.

Temperature

Average May temperatures
High °F	Low °F	Park	Place	High °C	Low °C
59	35	Banff	Banff Townsite, AB	15	2
55	30	Banff	Lake Louise, AB	13	-1
61	37	Jasper	Jasper Townsite, AB	16	3
61	35	Jasper	Park East Gate, Highway 16, AB	16	2
55	29	Jasper	Sunwapta Falls, Icefields Parkway, AB	13	-1
58	34	Evan-Thomas	Barrier Lake, AB	14	1
56	29	Peter Lougheed	Lower Kananaskis Lake, AB	13	-2
62	33	Kootenay	Kootenay Crossing, BC	16	0
65	41	Kootenay	Park West Gate, Highway 93, BC	18	5
62	37	Mount Robson	Park West Gate, Highway 16, BC	17	3
58	37	Waterton Lakes	Park Gate, Highway 5, AB	15	3
59	38	Waterton Lakes	Waterton Village, AB	15	3
59	35	Yoho	Field, BC	15	2
52	31	Yoho	Wapta Lake, Highway 1, BC	11	-1

Precipitation

These precipitation statistics are averages for rainfall plus snowfall. The calculation of days includes those when precipitation totalled at least 0.2 millimetres (0.008 inches).

Total precipitation in May
Days	Park	Place	Inches	Millimetres
14	Banff	Banff Townsite, AB	2.5	62
13	Banff	Lake Louise, AB	1.6	40
11	Jasper	Jasper Townsite, AB	1.2	31
12	Jasper	Park East Gate, Highway 16, AB	2.6	66
11	Jasper	Sunwapta Falls, Icefields Parkway, AB	1.3	32
13	Evan-Thomas	Barrier Lake, AB	3.5	89
14	Peter Lougheed	Lower Kananaskis Lake, AB	2.6	67
15	Kootenay	Kootenay Crossing, BC	2.2	56
14	Kootenay	Park West Gate, Highway 93, BC	1.8	47
13	Mount Robson	Park West Gate, Highway 16, BC	1.5	38
13	Waterton Lakes	Park Gate, Highway 5, AB	2.8	70
16	Waterton Lakes	Waterton Village, AB	4.5	114
15	Yoho	Field, BC	2.1	54
16	Yoho	Wapta Lake, Highway 1, BC	2.7	69

Snowfall

Snowfall averages for May
Days	Park	Place	Inches	Centimetres
4	Banff	Banff Townsite, AB	5.9	14.9
2	Banff	Lake Louise, AB	2.8	7.1
1	Jasper	Jasper Townsite, AB	0.3	0.8
1	Jasper	Park East Gate, Highway 16, AB	2.3	6.0
2	Jasper	Sunwapta Falls, Icefields Parkway, AB	2.9	7.2
4	Evan-Thomas	Barrier Lake, AB	11.5	29.2
3	Peter Lougheed	Lower Kananaskis Lake, AB	8.8	22.3
1	Kootenay	Kootenay Crossing, BC	0.8	2.1
0	Kootenay	Park West Gate, Highway 93, BC	0.4	1.1
0	Mount Robson	Park West Gate, Highway 16, BC	0.5	1.3
3	Waterton Lakes	Park Gate, Highway 5, AB	6.5	16.5
2	Waterton Lakes	Waterton Village, AB	4.6	11.8
0	Yoho	Field, BC	0.5	1.2
3	Yoho	Wapta Lake, Highway 1, BC	5.5	14.0

Canadian Rockies Weather in May:
Temperature, Snow & Precipitation Averages

Temperature

Precipitation

Snowfall

Reference

More on Weather in Canada

Canadian Rockies Weather in May: Temperature, Snow & Precipitation Averages

Temperature

Precipitation

Snowfall

Reference

More on Weather in Canada

Canadian Rockies Weather in May:
Temperature, Snow & Precipitation Averages