Photo: Fil.Al · CC BY 2.0Few Canadian towns get more frosts than Jasper
Peak summer warmth arrives in July, with afternoons near 23.4°C. Expect the most rain and snow in June and the least in February. Its yearly rain and snow fall short of 97% of Canadian towns. An umbrella or a shovel earns its place on about 83 days a year with 1 mm or more.
Measured at Jasper, 0.9 km east: ECCC’s normals for 1991–2020.
A year in Jasper at a glance
Each month’s typical high and low, in °C.
What stands out about Jasper’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Alberta beside it.
What a year in Jasper feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
About 217 frosts and 79 warm days a year
Frost comes from September to June; in December almost every night freezes. Some 25 nights a year drop under −20°C.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
About 376 mm of rain and snow a year
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 112 cm of snow a year
Expect snow from September to May, with about 21 cm in January, the snowiest month.
Snowfall by month
Centimetres
Heating a home in Jasper
83% of a year’s heating need falls between October and April. Months averaging under 10°C: October to May.
Measured against 18°C: each day’s shortfall in mean temperature, added over twelve months. That means homes here need more heating than 82% of Canadian towns.
Living with Jasper’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
Gardens get from about 14 June to 26 August without frost, around 72 days in all.
No month here brings highs of 17–27°C together with nights of 8°C or more.
Parks & trails →Winter brings about 41 days with a wind chill below −20.
Summer brings about 8 days when the humidex passes 30.
Thirty years of averages say little about one bad storm; Jasper’s hazards page does.
Flood & hazards →ECCC’s normals location: Jasper
Jasper is a composite: ECCC joins 2 stations’ readings to make its 1991–2020 normals.
| Distance from the town | 0.9 km east |
| Station altitude | 1,062 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −44.8°C |
| Hottest reading, 1991–2020 | 36.2°C |
| Average wind | 5.6 km/h on average, most often from the south |
| Next-nearest location | Blue River, 117 km |
How Jasper compares
Placed among 2,611 Canadian towns and neighbourhoods of 2,500+, each on its nearest normals location; each dot is another location used in Alberta.
Nearby towns’ climate
The nearest places on a normals location of their own: those that share Jasper’s would only repeat its figures. The nearest places to Jasper with figures are 80–160 km away.
Jasper weather by month
Month by month, 1991–2020: the usual high, low and mean, the rain and snow, and the snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −3.2°C | −14.4°C | −8.8°C | 20 mm | 21 cm |
| February | 0.5°C | −12.7°C | −6.1°C | 15 mm | 12 cm |
| March | 4.7°C | −8.2°C | −1.8°C | 20 mm | 17 cm |
| April | 10.9°C | −3.6°C | 3.7°C | 20 mm | 8 cm |
| May | 16.4°C | 0.9°C | 8.7°C | 37 mm | 5 cm |
| June | 20.0°C | 5.2°C | 12.6°C | 58 mm | 0 cm |
| July | 23.4°C | 7.4°C | 15.4°C | 52 mm | 0 cm |
| August | 23.0°C | 6.1°C | 14.6°C | 51 mm | 0 cm |
| September | 17.9°C | 2.5°C | 10.2°C | 36 mm | 2 cm |
| October | 9.9°C | −2.4°C | 3.9°C | 26 mm | 8 cm |
| November | 1.5°C | −8.1°C | −3.3°C | 24 mm | 21 cm |
| December | −3.5°C | −14.1°C | −8.8°C | 18 mm | 18 cm |
| Year | 10.1°C | −3.5°C | 3.4°C | 376 mm | 112 cm |
February varies most from one year to the next (4.3°C), June least
Each bar spans a month’s coldest and warmest readings over thirty years; November’s run from −38.3°C in 2014 to 19.9°C in 2016.
Where Jasper’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the 1991–2020 normals from ECCC for Jasper, its nearest location with complete temperatures.
- Comparisons: Canadian towns and neighbourhoods of at least 2,500, each placed by its nearest location (city totals and reserves excluded).
- Not on this page: sunshine, not in ECCC’s 1991–2020 normals, and the effect of the town’s height, for which there is no figure.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Jasper’s climate
How warm does Jasper get in summer?
At its warmest, in July, the normal high is 23.4°C.
How cold does Jasper get in winter?
A typical January night falls to −14.4°C, the year’s low point.
How much rain and snow does Jasper get?
The year adds up to 376 mm. June is the peak month (58 mm) and February the low one (15 mm).
Are these figures for Jasper itself?
Yes, from ECCC’s station within Jasper’s boundary.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Jasper →
Adapted from Statistics Canada (Census of Population 2021, population estimates 2025, 2021 census boundaries) under the Statistics Canada Open Licence; this does not constitute an endorsement by Statistics Canada. Neighbourhood names in some cities © OpenStreetMap contributors (ODbL).