Photo: Wilson Hui from Calgary, Canada · CC BY 2.0Mayerthorpe sits near the top of Canadian towns for frosts
On a normal July day the thermometer tops out near 23.5°C. July is the wettest month here, with about 5.9 times the rain and snow of February. Summers stay cool: July afternoons here are cooler than in 80% of Canadian towns. Wet days, with 1 mm of rain or snow or more, come about 82 times a year.
ECCC publishes no normals for Mayerthorpe itself; the figures are those of Campsie, 36 km north-east.
A year in Mayerthorpe at a glance
Each month’s typical high and low, in °C.
What stands out about Mayerthorpe’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Alberta beside it.
What a year in Mayerthorpe feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
Frost on 216 days, 20°C on 87
Frost comes from September to May; in January almost every night freezes. On about 42 nights a year the air falls below −20°C.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
Rain and melted snow: about 466 mm a year
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 128 cm of snow a year
Expect snow from October to May, with about 29 cm in January, the snowiest month.
Snowfall by month
Centimetres
Heating a home in Mayerthorpe
87% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Every day colder than 18°C on average adds its gap in degrees to the year’s heating total. Over a year, a home here needs more heating than 93% of Canadian towns.
Living with Mayerthorpe’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
Count on about 91 frost-free days: the last frost averages 1 June, the first 1 September.
Plan time outside for Jul and Aug: highs of 17–27°C and nights no colder than 8°C.
Parks & trails →Severe weather is a separate story from the averages: see Mayerthorpe’s hazards page.
Flood & hazards →ECCC’s normals location: Campsie
Campsie is a composite: ECCC joins 2 stations’ readings to make its 1991–2020 normals.
| Distance from the town | 36 km north-east |
| Station altitude | 671 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −47.5°C |
| Hottest reading, 1991–2020 | 36.5°C |
| Next-nearest location | Whitecourt, 48 km |
How Mayerthorpe compares
Compared with 2,611 towns and neighbourhoods of 2,500 or more across Canada; the dots mark the other normals locations in Alberta.
Nearby towns’ climate
The nearest places on a normals location of their own: those that share Mayerthorpe’s would only repeat its figures. The nearest places to Mayerthorpe with figures are 32–79 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Mayerthorpe Campsie | 23.5°C | −19.0°C | 466 mm |
| Woodlands County 32 km · Whitecourt | 22.2°C 1.3°C cooler | −16.0°C 3.0°C milder | 521 mm |
| Wabamun 133A 68 km · Breton | 23.1°C about the same | −15.2°C 3.8°C milder | 499 mm |
| Yellowhead County 69 km · Edson | 22.2°C 1.3°C cooler | −17.0°C 2.0°C milder | 489 mm |
| Alexander 134 79 km · Edmonton (City) | 23.5°C about the same | −14.7°C 4.3°C milder | 423 mm |
Mayerthorpe 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 | −6.6°C | −19.0°C | −12.8°C | 27 mm | 29 cm |
| February | −3.1°C | −16.9°C | −10.0°C | 15 mm | 14 cm |
| March | 1.8°C | −11.2°C | −4.7°C | 18 mm | 18 cm |
| April | 10.5°C | −3.1°C | 3.7°C | 30 mm | 10 cm |
| May | 17.5°C | 2.5°C | 10.1°C | 47 mm | 3 cm |
| June | 20.9°C | 7.3°C | 14.1°C | 84 mm | 0 cm |
| July | 23.5°C | 9.7°C | 16.6°C | 86 mm | 0 cm |
| August | 22.5°C | 8.1°C | 15.3°C | 57 mm | 0 cm |
| September | 17.6°C | 2.9°C | 10.3°C | 36 mm | under 1 cm |
| October | 9.6°C | −2.9°C | 3.4°C | 23 mm | 10 cm |
| November | −0.1°C | −10.7°C | −5.3°C | 25 mm | 24 cm |
| December | −5.8°C | −17.5°C | −11.7°C | 19 mm | 20 cm |
| Year | 9.0°C | −4.2°C | 2.4°C | 466 mm | 128 cm |
From year to year, December moves by 4.4°C, more than any month, and June least
Records from 1991 to 2020: no month spans more than January, between −47.5°C (2008) and 20.5°C (2009).
Where Mayerthorpe’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s normals for Campsie, 1991–2020, chosen as the nearest location with a full temperature record.
- Comparisons: a pool of Canadian towns and neighbourhoods of 2,500 or more, read alike; whole cities and reserves stay out of it.
- 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 Mayerthorpe’s climate
How warm does Mayerthorpe get in summer?
July is the warmest month, with average highs of 23.5°C.
How cold does Mayerthorpe get in winter?
On a normal January night the air drops to −19.0°C, the coldest of the year.
How much rain and snow does Mayerthorpe get?
466 mm a year counting snow as water. The wettest month is July (86 mm); the driest, February (15 mm).
Are these figures for Mayerthorpe itself?
They are the closest available: the normals for Campsie, since Mayerthorpe has none.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Mayerthorpe →
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).