Photo: P199 · CC BY-SA 3.0Admaston/Bromley has colder winter nights than 81% of Canadian towns
July afternoons average 26.4°C. By precipitation alone, it ranks wetter than 67% of Canadian towns. Seasons differ by 43°C, from the coldest nights to the warmest afternoons. The furnace earns its keep from October to April, the months that average under 10°C.
These are not Admaston/Bromley’s own readings: ECCC keeps no normals there, so the page uses Charteris, 40 km north-east.
A year in Admaston/Bromley at a glance
Each month’s typical high and low, in °C.
What stands out about Admaston/Bromley’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Ontario beside it.
What a year in Admaston/Bromley feels like
Each season’s and each month’s usual high and low, 1991–2020.
Frost on 178 days, 20°C on 115
From September to May frost is routine, and in January it comes on almost every night. Deep cold, under −20°C, comes on about 31 nights a year.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
About 968 mm of rain and snow a year
The most falls in June, the least in February. Some 137 days a year see 1 mm of rain or snow or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
ECCC’s Charteris normals leave out precipitation and snow; both come from Luskville here, 62 km away.
About 193 cm of snow a year
Expect snow from October to April, with about 53 cm in January, the snowiest month.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Admaston/Bromley
91% 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. A house here needs more heating than 61% of Canadian towns.
Living with Admaston/Bromley’s climate
What the normals mean for a garden, a day outside and the depth of winter.
Count on about 118 frost-free days: the last frost averages 23 May, the first 19 September.
Mild days and mild nights together (17–27°C by day, 8°C or more at night) belong to Jun, Jul and Aug.
Parks & trails →Ice storms, floods and heat waves are risks, not averages: they are on Admaston/Bromley’s hazards page.
Flood & hazards →ECCC’s normals location: Charteris
Every temperature, frost, snow and degree-day figure on this page is the 1991–2020 normal ECCC publishes for Charteris.
| Distance from the town | 40 km north-east |
| Station altitude | 168 m |
| Completeness | at least 20 years |
| WMO standard normals | No |
| Precipitation from | Luskville, 62 km |
| Coldest reading, 1991–2020 | −39.5°C |
| Hottest reading, 1991–2020 | 36.5°C |
| Next-nearest location | Luskville, 62 km |
How Admaston/Bromley compares
Against the 2,611 Canadian towns and neighbourhoods of 2,500 or more, each read from its own normals location; the dots are the other locations those towns use in Ontario.
Nearby towns’ climate
Places around Admaston/Bromley whose figures come from another normals location. Distances here run 20–30 km: that is how far the nearest places with figures are from Admaston/Bromley.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Admaston/Bromley Charteris | 26.4°C | −16.9°C | 968 mm |
| Greater Madawaska 20 km · Drummond Centre | 27.1°C 0.7°C warmer | −14.2°C 2.7°C milder | 939 mm |
| Eganville 23 km · Petawawa | 26.3°C about the same | −17.9°C 1.0°C colder | 932 mm |
Admaston/Bromley weather by month
Each month’s normals, 1991–2020: high, low, mean, precipitation and snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −6.2°C | −16.9°C | −11.6°C | 77 mm | 53 cm |
| February | −4.2°C | −16.1°C | −10.2°C | 63 mm | 43 cm |
| March | 2.2°C | −9.5°C | −3.7°C | 63 mm | 31 cm |
| April | 10.8°C | −1.2°C | 5.1°C | 74 mm | 6 cm |
| May | 19.3°C | 5.5°C | 12.5°C | 79 mm | 0 cm |
| June | 23.9°C | 10.6°C | 17.4°C | 99 mm | 0 cm |
| July | 26.4°C | 13.1°C | 19.6°C | 97 mm | 0 cm |
| August | 25.1°C | 12.2°C | 18.6°C | 96 mm | 0 cm |
| September | 20.4°C | 7.9°C | 14.3°C | 87 mm | 1 cm |
| October | 12.4°C | 2.3°C | 7.5°C | 84 mm | 1 cm |
| November | 4.8°C | −3.8°C | 0.7°C | 74 mm | 16 cm |
| December | −2.6°C | −11.3°C | −7.0°C | 76 mm | 43 cm |
| Year | 11.0°C | −0.6°C | 5.3°C | 968 mm | 193 cm |
January strays furthest from its normal year to year, by 3.4°C; August the least
Records from 1991 to 2020: no month spans more than March, between −35.0°C (2007) and 27.5°C (2012).
Where Admaston/Bromley’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the 1991–2020 Canadian Climate Normals at Charteris, the closest ECCC location with twelve months of temperature normals.
- Other locations: ECCC blanks a month that fails its completeness rule, so the precipitation or snowfall here comes from the next location with all twelve months.
- Comparisons: Canada’s towns and neighbourhoods of 2,500+ (no city totals, no reserves), each through its own nearest location.
- Not on this page: hours of sunshine, missing from the 1991–2020 normals, and a height correction: the town has no elevation on file.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Admaston/Bromley’s climate
How warm does Admaston/Bromley get in summer?
A normal July afternoon tops out at about 26.4°C, the year’s high point.
How cold does Admaston/Bromley get in winter?
At its coldest, in January, the normal low is −16.9°C.
How much rain and snow does Admaston/Bromley get?
The yearly total is about 968 mm. June gets 99 mm, the most of any month; February gets 63 mm, the least.
How long does snow stay on the ground?
Snow covers the ground, 1 cm or more, on about 127 days a year.
Are these figures for Admaston/Bromley itself?
Not directly: Admaston/Bromley has no ECCC normals of its own, and Charteris stands in for it.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Admaston/Bromley →
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).