Banff Temperatures: Averages by Month
The numbers here tell you how hot and cold the weather usually is in Banff, Alberta during each month of the year.
The average high and low temperatures are listed below monthly and annually for the Rocky Mountain town, in both degrees Fahrenheit and Celsius.
Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.
To find out how often it rises over 10, 20 or 30 °C each month in Banff, scroll down farther. There are also monthly and yearly counts of days with frost and cold weather.
The first set of high and low temperatures are averages for 2010 to 2019. Everything else here is based on 1981 to 2010 weather.
| High °F | Low °F | High °C | Low °C | |
|---|---|---|---|---|
| 27 | 10 | January | -3 | -12 |
| 29 | 7 | February | -2 | -14 |
| 40 | 18 | March | 4 | -8 |
| 48 | 26 | April | 9 | -3 |
| 59 | 32 | May | 15 | 0 |
| 65 | 40 | June | 18 | 5 |
| 73 | 44 | July | 23 | 7 |
| 73 | 43 | August | 23 | 6 |
| 61 | 36 | September | 16 | 2 |
| 49 | 29 | October | 9 | -2 |
| 33 | 16 | November | 0 | -9 |
| 24 | 8 | December | -5 | -14 |
| 48 | 26 | Year | 9 | -3 |
| High °F | Low °F | High °C | Low °C | |
|---|---|---|---|---|
| 26 | 10 | January | -3 | -12 |
| 32 | 12 | February | 0 | -11 |
| 41 | 20 | March | 5 | -7 |
| 49 | 28 | April | 10 | -2 |
| 59 | 35 | May | 15 | 2 |
| 66 | 42 | June | 19 | 5 |
| 71 | 45 | July | 22 | 7 |
| 71 | 44 | August | 22 | 7 |
| 61 | 37 | September | 16 | 3 |
| 50 | 30 | October | 10 | -1 |
| 32 | 17 | November | 0 | -8 |
| 23 | 8 | December | -5 | -13 |
| 48 | 27 | Year | 9 | -3 |
Days of Hot Weather in Banff
Banff's hottest days have temperatures in the low 30s Celsius. A day that hot typically shows up in July, and less commonly in August or September. Temperatures above 35 °C (95 °F) are not expected here.
| 10 °C 50 °F |
20 °C 68 °F |
30 °C 86 °F | |
|---|---|---|---|
| January | 0 | 0 | 0 |
| February | 1 | 0 | 0 |
| March | 4 | 0 | 0 |
| April | 14 | 1 | 0 |
| May | 24 | 5 | 0 |
| June | 29 | 11 | 0 |
| July | 31 | 18 | 1 |
| August | 30 | 19 | 0 |
| September | 25 | 9 | 0 |
| October | 15 | 2 | 0 |
| November | 1 | 0 | 0 |
| December | 0 | 0 | 0 |
| Year | 172 | 64 | 2 |
When Banff Has Frosty Weather
Banff typically has 206 days a year when the minimum temperature is at 0 °C or below. The average date for the last frost in spring is June 7. Frost normally returns here three months later on September 7. The frost-free period extends for 91 days on average between the final spring frost and the first fall frost.
| 0 °C 32 °F | |
|---|---|
| January | 30 |
| February | 26 |
| March | 29 |
| April | 23 |
| May | 10 |
| June | 1 |
| July | 0 |
| August | 1 |
| September | 8 |
| October | 19 |
| November | 28 |
| December | 31 |
| Year | 206 |
How Often Banff Has Cold Temperatures
Banff's chilliest winter nights have lows in the minus-thirties Celsius (below -22 °F). The mountain town averages just four or five nights a winter when it gets that cold.
From September to April, Banff can remain below freezing all day long. The ski resort typically has 77 days a year when the temperature never rises above 0 °C.
| -2 °C 28 °F |
-10 °C 14 °F |
-20 °C -4 °F | |
|---|---|---|---|
| January | 28 | 16 | 5 |
| February | 23 | 13 | 5 |
| March | 24 | 7 | 1 |
| April | 13 | 1 | 0 |
| May | 2 | 0 | 0 |
| June | 0 | 0 | 0 |
| July | 0 | 0 | 0 |
| August | 0 | 0 | 0 |
| September | 3 | 0 | 0 |
| October | 11 | 1 | 0 |
| November | 24 | 10 | 2 |
| December | 29 | 19 | 6 |
| Year | 157 | 67 | 19 |
References
Environment Canada. Meteorological Service of Canada. Canadian Climate Normals. 1981-2010 Climate Normals & Averages.
Jay Lawrimore, Ron Ray, Scott Applequist, Bryant Korzeniewski, Matthew Menne. 2016. Global Summary of the Month and Year, Version 1.0. NOAA National Centers for Environmental Information.