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What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month
Temperature
9°C48°F -
What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily
High Temperature
16°C61°F -
What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily
Low Temperature
2°C36°F -
What are Average Daily Sunshine Hours?
Total sunshine hours for the month, divided by the number of days in the month. Sunshine hours are taken with a sunshine recorder, either a Campbell-Stokes recorder or an Eppley Pyreheliometer
Sunshine Hours
6 hours -
What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years
Rainfall Days
3 days -
What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years
Rainfall
50 mm
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May Weather Averages
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Banff Events May
Public Hoilday
18
May
2026
18
May
2026
Victoria Day Long Weekend Celebrations 🗓
Marks the unofficial start of summer with outdoor dining, hikes and local events.
Wellness
22
May
2026
25
May
2026
Banff Yoga Festival 💚
Yoga, meditation and wellness sessions set against mountain scenery.
