Dry weather: only 445 mm of rain and snow a year falls on Erlton, less than on 82% of Canadian towns
On a normal January night the air cools to about −13.5°C. Rain or snow is most frequent in June and least in January. By July afternoons alone, it runs cooler than 80% of Canadian towns. Wet days, with 1 mm of rain or snow or more, come about 72 times a year.
Read at Calgary (Airport), 11 km north: ECCC’s normals for 1991–2020.
A year in Erlton at a glance
Each month’s typical high and low, in °C.
What stands out about Erlton’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Alberta beside it.
What a year in Erlton feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
About 193 frosts and 87 warm days a year
The frost season runs September to May, and December freezes nearly every night. Some 22 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
445 mm of precipitation in a typical year
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 139 cm of snow a year
Expect snow from September to May, with about 24 cm in March, the snowiest month.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Erlton
85% of a year’s heating need falls between October and April. Months averaging under 10°C: October to May.
Degree days add up how far each day’s mean temperature falls below 18°C over a year. By this count, homes here need more heating than 68% of Canadian towns.
Living with Erlton’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
Between the last frost, near 21 May, and the first, near 18 September, lie about 119 frost-free days.
The comfortable months for a day outside, highs of 17–27°C and nights of 8°C or more: Jul and Aug.
Parks & trails →About 42 days a year bring a wind chill under −20, when bare skin chills fast.
The humidex tops 30 on about 9 days a year: muggy days to plan around.
Thirty-year normals hide the storms and the extremes: the hazards page has Erlton’s risks.
Flood & hazards →ECCC’s normals location: Calgary (Airport)
ECCC builds the Calgary (Airport) normals from 2 stations’ records over 1991–2020, joined where one replaced another.
| Distance from the town | 11 km north |
| Station altitude | 1,099 m |
| Completeness | at least 20 years |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −39.7°C |
| Hottest reading, 1991–2020 | 36.5°C |
| Average wind | 13.8 km/h on average, most often from the south |
| Next-nearest location | Queenstown, 89 km |
How Erlton 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
Nearby places read from a different ECCC location (places on Erlton’s own would show the same figures). No closer places have figures: these lie 57–71 km from Erlton.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Erlton Calgary (Airport) | 23.5°C | −13.5°C | 445 mm |
| Stoney 142, 143, 144 57 km · Banff | 22.5°C 1.0°C cooler | −13.5°C about the same | 454 mm |
| Wheatland County 58 km · Queenstown | 25.0°C 1.5°C warmer | −13.7°C about the same | 412 mm |
| Carstairs 59 km · Sundre | 22.8°C 0.7°C cooler | −18.0°C 4.5°C colder | 496 mm |
Erlton weather by month
Average daily high and low, mean temperature, rain and snow (as water) and snowfall by month, 1991–2020.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −1.5°C | −13.5°C | −7.6°C | 10 mm | 17 cm |
| February | 0.1°C | −11.8°C | −5.9°C | 12 mm | 17 cm |
| March | 3.8°C | −8.1°C | −2.2°C | 18 mm | 24 cm |
| April | 10.8°C | −1.9°C | 4.5°C | 30 mm | 23 cm |
| May | 16.4°C | 3.4°C | 9.9°C | 61 mm | 10 cm |
| June | 19.7°C | 7.7°C | 13.7°C | 113 mm | under 1 cm |
| July | 23.5°C | 10.2°C | 16.9°C | 66 mm | 0 cm |
| August | 23.1°C | 9.2°C | 16.2°C | 54 mm | 0 cm |
| September | 18.3°C | 4.7°C | 11.5°C | 37 mm | 2 cm |
| October | 11.1°C | −1.3°C | 4.9°C | 17 mm | 12 cm |
| November | 4.1°C | −7.5°C | −1.7°C | 16 mm | 19 cm |
| December | −0.4°C | −12.1°C | −6.3°C | 13 mm | 16 cm |
| Year | 10.8°C | −1.8°C | 4.5°C | 445 mm | 139 cm |
Two years in three, February’s average lands within 4.1°C of normal, against the steadier June
The thirty-year records stretch furthest in December: a low of −38.2°C in 1996 and a high of 19.5°C in 1999.
Where Erlton’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the 1991–2020 normals from ECCC for Calgary (Airport), its nearest location with complete temperatures.
- Comparisons: all Canadian places of 2,500 or more except city totals and reserves, each read the same way.
- Not on this page: sunshine, absent from every 1991–2020 location, and an altitude correction, for want of the town’s own elevation.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Erlton’s climate
How warm does Erlton get in summer?
On a normal day in July the thermometer climbs to 23.5°C, the warmest of the year.
How cold does Erlton get in winter?
In January, the coldest month, the typical low is −13.5°C.
How much rain and snow does Erlton get?
Precipitation totals 445 mm a year, with June the wettest month (113 mm) and January the driest (10 mm).
How long does snow stay on the ground?
A layer of at least 1 cm stays down on about 93 days a year.
Are these figures for Erlton itself?
Nearly: Calgary (Airport), the location behind them, sits just beyond Erlton’s boundary.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Erlton →
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).