Photo: Masterhatch · CC0Few Canadian towns get less rain and snow than Hanna: 339 mm a year
On a normal July day the thermometer tops out near 26.3°C. Rain or snow is most frequent in June and least in December. By frosts alone, it ranks colder than 88% of Canadian towns. About 66 days a year bring 1 mm of precipitation or more.
Every figure here comes from Drumheller East, 56 km west; ECCC has no normals closer to Hanna, so they describe the wider area.
A year in Hanna at a glance
Each month’s typical high and low, in °C.
What stands out about Hanna’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Alberta beside it.
What a year in Hanna feels like
Each season’s and each month’s usual high and low, 1991–2020.
195 frost days and 116 days above 20°C a year
From September to May frost is routine, and in December it comes on almost every night. On about 35 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
About 339 mm of rain and snow a year
472nd wettest of 478 towns of 2,500+ in Alberta.
Rain and snow by month
Millimetres
ECCC’s Drumheller East normals leave precipitation out; the figures here come from Coronation, 58 km away.
About 87 cm of snow a year
Snow falls from October to May, most of all in January (about 16 cm). 466th snowiest of 474 towns of 2,500+ in Alberta.
Snowfall by month
Centimetres
ECCC’s Drumheller East normals leave snowfall out; the figures here come from Forestburg Plant Site, 93 km away.
Heating a home in Hanna
90% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
The total grows by a degree for every degree a day’s mean sits under 18°C. Over a year, a home here needs more heating than 72% of Canadian towns.
Living with Hanna’s climate
What the normals mean for a garden, a day outside and the depth of winter.
Count on about 128 frost-free days: the last frost averages 14 May, the first 21 September.
The outdoor season by the averages is Jun, Jul and Aug, with highs of 17–27°C and lows of 8°C or more.
Parks & trails →Expect around 57 days a year when the wind chill sinks below −20.
Muggy heat with a humidex over 30 arrives on about 22 days a year.
Bad-weather days, from blizzards to floods, get their own page for Hanna: the hazards page.
Flood & hazards →ECCC’s normals location: Drumheller East
Every temperature, frost, snow and degree-day figure on this page is the 1991–2020 normal ECCC publishes for Drumheller East.
| Distance from the town | 56 km west |
| Station altitude | 678 m |
| Completeness | at least 20 years |
| WMO standard normals | No |
| Precipitation from | Coronation, 58 km |
| Snowfall from | Forestburg Plant Site, 93 km |
| Coldest reading, 1991–2020 | −43.9°C |
| Hottest reading, 1991–2020 | 39.4°C |
| Average wind | 9.2 km/h on average, most often from the south-east |
| Next-nearest location | Coronation, 58 km |
How Hanna 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
Places around Hanna whose figures come from another normals location. The one place listed is 24 km from Hanna, the nearest with figures.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Hanna Drumheller East | 26.3°C | −17.6°C | 339 mm |
| Special Area No. 2 24 km · Coronation | 23.8°C 2.5°C cooler | −18.8°C 1.2°C colder | 339 mm |
Hanna 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 | −4.9°C | −17.6°C | −11.2°C | 12 mm | 16 cm |
| February | −1.7°C | −15.7°C | −8.7°C | 9 mm | 10 cm |
| March | 4.0°C | −9.3°C | −2.7°C | 13 mm | 14 cm |
| April | 12.6°C | −1.6°C | 5.5°C | 25 mm | 8 cm |
| May | 18.9°C | 4.4°C | 11.7°C | 39 mm | 2 cm |
| June | 22.5°C | 9.1°C | 15.8°C | 69 mm | 0 cm |
| July | 26.3°C | 11.6°C | 19.0°C | 61 mm | 0 cm |
| August | 25.9°C | 10.3°C | 18.2°C | 43 mm | 0 cm |
| September | 20.5°C | 4.9°C | 12.7°C | 29 mm | 1 cm |
| October | 12.6°C | −1.6°C | 5.8°C | 17 mm | 9 cm |
| November | 2.6°C | −9.5°C | −3.4°C | 15 mm | 14 cm |
| December | −4.0°C | −16.3°C | −10.2°C | 9 mm | 13 cm |
| Year | 11.3°C | −2.6°C | 4.4°C | 339 mm | 87 cm |
The most changeable month: February, give or take 4.4°C; the steadiest, June
Records from 1991 to 2020: no month spans more than March, between −38.7°C (2019) and 28.0°C (2004).
Where Hanna’s numbers come from
Averages over 30 years, not a forecast.
- Normals: Environment and Climate Change Canada’s 1991–2020 normals, Drumheller East: the nearest of its locations with every month’s temperatures.
- Other locations: precipitation and snowfall come from the nearest location that publishes all twelve months of them, as named above.
- Comparisons: the towns and neighbourhoods of 2,500+ across Canada, each on its nearest normals location, without the city totals or the reserves.
- 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 Hanna’s climate
How warm does Hanna get in summer?
A normal July afternoon tops out at about 26.3°C, the year’s high point.
How cold does Hanna get in winter?
Expect nights around −17.6°C in January; no month is colder.
How much rain and snow does Hanna get?
Rain and snow, with snow counted as water, total 339 mm a year; June leads with 69 mm and December trails with 9 mm.
Are these figures for Hanna itself?
No. The nearest normals are those of Drumheller East, a long way from Hanna.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Hanna →
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).