Coaldale is among the driest of Canadian towns: 373 mm of rain and snow a year
On a normal July day the thermometer tops out near 26.3°C. Its July heat outdoes that of 63% of Canadian towns. June is the wettest month, February the driest. Frost comes on about 175 days a year, so leave time to clear the car.
The nearest ECCC normals location to Coaldale is Lethbridge, 17 km south-west, and every figure on this page is its.
A year in Coaldale at a glance
Each month’s typical high and low, in °C.
What stands out about Coaldale’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Alberta beside it.
What a year in Coaldale feels like
Each season’s and each month’s usual high and low, 1991–2020.
175 frost days and 112 days above 20°C a year
Frost comes from September to May; in December almost every night freezes. Deep cold, under −20°C, comes on about 22 nights a year.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
About 373 mm of rain and snow a year
On about 69 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
108 cm of snow in a typical year
From August to May snow is likely; March is the peak, at about 18 cm.
Snowfall by month
Centimetres
Heating a home in Coaldale
88% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Each day the mean sits under 18°C adds its shortfall; a year’s total is its heating degree days.
Living with Coaldale’s climate
What the normals mean for a garden, a day outside and the depth of winter.
About 118 days a year pass without frost, from an average last frost of 21 May to a first of 17 September.
Afternoons of 17–27°C and nights of at least 8°C arrive in Jun, Jul and Aug.
Parks & trails →Count on some 41 days a year when the wind makes it feel below −20.
Count on some 24 humid days a year with the humidex past 30.
Bad-weather days, from blizzards to floods, get their own page for Coaldale: the hazards page.
Flood & hazards →ECCC’s normals location: Lethbridge
Lethbridge is a composite: ECCC joins 4 stations’ readings to make its 1991–2020 normals.
| Distance from the town | 17 km south-west |
| Station altitude | 929 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −41.9°C |
| Hottest reading, 1991–2020 | 40.1°C |
| Average wind | 17.1 km/h on average, most often from the west |
| Next-nearest location | Vauxhall, 51 km |
How Coaldale 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 Coaldale’s own would show the same figures). The nearest place to Coaldale with figures is 26 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Coaldale Lethbridge | 26.3°C | −12.1°C | 373 mm |
| Barnwell 26 km · Vauxhall | 26.8°C 0.5°C warmer | −14.1°C 2.0°C colder | 373 mm |
Coaldale weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | 0.1°C | −12.1°C | −6.0°C | 11 mm | 13 cm |
| February | 1.7°C | −11.0°C | −4.6°C | 10 mm | 15 cm |
| March | 6.4°C | −6.8°C | −0.2°C | 17 mm | 18 cm |
| April | 12.6°C | −1.3°C | 5.7°C | 28 mm | 13 cm |
| May | 18.2°C | 3.9°C | 11.1°C | 57 mm | 5 cm |
| June | 21.8°C | 8.3°C | 15.1°C | 93 mm | 0 cm |
| July | 26.3°C | 10.5°C | 18.4°C | 40 mm | 0 cm |
| August | 26.3°C | 9.4°C | 17.9°C | 33 mm | 1 cm |
| September | 21.0°C | 5.3°C | 13.2°C | 32 mm | 1 cm |
| October | 13.3°C | −0.6°C | 6.4°C | 24 mm | 10 cm |
| November | 5.5°C | −6.6°C | −0.5°C | 16 mm | 16 cm |
| December | 0.7°C | −11.2°C | −5.3°C | 12 mm | 15 cm |
| Year | 12.8°C | −1.0°C | 5.9°C | 373 mm | 108 cm |
From year to year, February moves by 4.8°C, more than any month, and June least
Over 1991–2020, March saw both −38.0°C (2002) and 26.8°C (2004), the widest span of any month.
Where Coaldale’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s normals for Lethbridge, 1991–2020, chosen as the nearest location with a full temperature record.
- Comparisons: every Canadian town and neighbourhood of 2,500 or more, each read from its own nearest location; city totals and reserves are left out.
- Not on this page: sunshine (no 1991–2020 normals exist for it) and any altitude adjustment, since there is no elevation for the town itself.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Coaldale’s climate
How warm does Coaldale get in summer?
Of all twelve months, July has the warmest afternoons, about 26.3°C.
How cold does Coaldale get in winter?
At its coldest, in January, the normal low is −12.1°C.
How much rain and snow does Coaldale get?
The yearly total is about 373 mm. June gets 93 mm, the most of any month; February gets 10 mm, the least.
Are these figures for Coaldale itself?
No, the station behind them is Lethbridge, beyond Coaldale’s boundary.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Coaldale →
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).