Few Canadian towns get more snow than Grand Falls: about 329 cm a year
High summer brings afternoon highs near 24.2°C. Temperatures cover 42°C across the year, low to high. It is a wet place: more rain and snow fall here than on 83% of Canadian towns. Long walks are most pleasant from June to August, when afternoons reach 22–24°C.
Borrowed figures: Grand Falls has no normals station, so these come from St. Leonard, 25 km north.
A year in Grand Falls at a glance
Each month’s typical high and low, in °C.
What stands out about Grand Falls’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in New Brunswick beside it.
What a year in Grand Falls feels like
Each season’s and each month’s usual high and low, 1991–2020.
192 frost days and 93 days above 20°C a year
The frost season runs September to May, and January freezes nearly every night. Deep cold, under −20°C, comes on about 33 nights a year.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
Rain and melted snow: about 1,128 mm a year
The most falls in July, the least in February. On about 131 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
329 cm of snow in a typical year
Snow falls from October to May, most of all in February (about 70 cm).
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Grand Falls
88% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
One degree below 18°C for one day makes one heating degree day; the year’s days are added together. In heating terms, homes need more heating than 82% of Canadian towns.
Living with Grand Falls’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
Seedlings can go out once the average last frost, around 21 May, has passed; autumn’s first, near 15 September, ends a season of about 116 days.
Highs of 17–27°C with nights of 8°C or more come in Jun, Jul and Aug.
Parks & trails →A wind chill below −20 is part of about 57 days a year here.
Roughly 24 days a year feel hotter than 30 once humidity is counted.
A normal year has no blizzard, flood or heat wave in it; Grand Falls’s hazards page looks at those.
Flood & hazards →ECCC’s normals location: St. Leonard
Behind the 1991–2020 normals for St. Leonard are 2 stations, which ECCC combines into one record.
| Distance from the town | 25 km north |
| Station altitude | 242 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −38.8°C |
| Hottest reading, 1991–2020 | 34.6°C |
| Average wind | 11.4 km/h on average, most often from the north-west |
| Next-nearest location | Aroostook, 26 km |
How Grand Falls 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 New Brunswick.
Nearby towns’ climate
Nearby places read from a different ECCC location (places on Grand Falls’s own would show the same figures). The nearest place to Grand Falls with figures is 19 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Grand Falls St. Leonard | 24.2°C | −17.9°C | 1,128 mm |
| Tobique 20 19 km · Aroostook | 25.7°C 1.5°C warmer | −17.5°C about the same | 1,149 mm |
Grand Falls weather by month
Month by month, 1991–2020: the usual high, low and mean, the rain and snow, and the snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −7.1°C | −17.9°C | −12.5°C | 85 mm | 70 cm |
| February | −5.4°C | −16.8°C | −11.1°C | 73 mm | 70 cm |
| March | 0.6°C | −10.5°C | −4.9°C | 83 mm | 64 cm |
| April | 8.0°C | −2.9°C | 2.6°C | 83 mm | 26 cm |
| May | 16.6°C | 3.6°C | 10.1°C | 95 mm | 2 cm |
| June | 21.7°C | 8.6°C | 15.2°C | 108 mm | 0 cm |
| July | 24.2°C | 11.9°C | 18.1°C | 115 mm | 0 cm |
| August | 23.5°C | 10.6°C | 17.1°C | 102 mm | 0 cm |
| September | 18.8°C | 6.1°C | 12.5°C | 96 mm | 0 cm |
| October | 10.7°C | 0.6°C | 5.7°C | 103 mm | 7 cm |
| November | 3.6°C | −4.8°C | −0.6°C | 92 mm | 25 cm |
| December | −3.3°C | −12.3°C | −7.8°C | 93 mm | 66 cm |
| Year | 9.3°C | −2.0°C | 3.7°C | 1,128 mm | 329 cm |
A January here can run warm or cold, its average moving by about 2.7°C; the steadiest month is August
The thirty-year records stretch furthest in March: a low of −33.6°C in 2001 and a high of 24.1°C in 2012.
Where Grand Falls’s numbers come from
Averages over 30 years, not a forecast.
- Normals: 1991–2020 normals for St. Leonard from ECCC’s climate data site, the nearest location with every month of temperature.
- 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 Grand Falls’s climate
How warm does Grand Falls get in summer?
July is the warmest month, with average highs of 24.2°C.
How cold does Grand Falls get in winter?
On a normal January night the air drops to −17.9°C, the coldest of the year.
How much rain and snow does Grand Falls get?
1,128 mm a year counting snow as water. The wettest month is July (115 mm); the driest, February (73 mm).
How long does snow stay on the ground?
Snow cover of 1 cm or more lasts about 151 days in a typical year.
Are these figures for Grand Falls itself?
Not as such: St. Leonard is the nearest normals location, and Grand Falls has none.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Grand Falls →
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).