Barrie's weather since 1973: snow, rain, heat and cold
Barrie's years have warmed: averaged over the last ten years, 2016 to 2025,
the year was 2.0 °C warmer than over the first ten on record, and nights of −20 °C or colder fell from
17 a year to 6.
Snowfall has not followed a straight line. The record is Environment and Climate Change Canada's Shanty
Bay station, on the north shore of Kempenfelt Bay about 5 km east of downtown, the longest unbroken daily
record for the Barrie area, kept since 1973.
How much snow does Barrie get?
Each winterAverage of the last ten winters
Total snowfall in centimetres, July 1 to June 30, so each winter is one point; the line through them is the average of that winter and the nine before it, this site's arithmetic.
Sums of Environment Canada's daily snowfall at Shanty Bay; a season missing more than 10% of its days is left out rather than undercounted. Shanty Bay, on the bay, gets more snow than the city centre: Environment Canada's 1981–2010 normals give it 264.7 cm a year against 223.0 cm at the former Barrie water pollution control centre station.
What the City spends clearing it, and how often the winter budget runs over, is on
snow clearing.
Sources:
Historical Climate Data, daily: SHANTY BAY (6117684) and BARRIE WPCC (6110557), Environment and Climate Change Canada.
Original document. Daily maximum, minimum and mean temperature, precipitation and snowfall, as downloaded. Every count, sum and mean on the page is this site's arithmetic from them; a year or season missing more than 10% of its days is left blank. Shanty Bay is on the north shore of Kempenfelt Bay about 5 km east of downtown Barrie. Canadian Climate Normals 1981–2010: SHANTY BAY and BARRIE WPCC, Environment and Climate Change Canada. Original document. Read through ECCC's GeoMet API. Both stations' 1981–2010 normals are calculated from 1981 to 2006 only. No 1991–2020 normals are published for either station. All retrieved October 11, 2026.
How often does Barrie get heavy rain?
Days on which 25 mm or more of rain or melted snow fell.
Each tooltip gives the year's wettest day. The wettest day in the record is June 2, 1995, with 103.2 mm.
Source:
Historical Climate Data, daily: SHANTY BAY (6117684) and BARRIE WPCC (6110557), Environment and Climate Change Canada.
Original document. Daily maximum, minimum and mean temperature, precipitation and snowfall, as downloaded. Every count, sum and mean on the page is this site's arithmetic from them; a year or season missing more than 10% of its days is left blank. Shanty Bay is on the north shore of Kempenfelt Bay about 5 km east of downtown Barrie. Retrieved October 11, 2026.
Is Barrie getting hotter?
Hot day and warm nightHot day onlyWarm night only
Each bar is one year's days of heat, every day counted once: a hot day is a high of 30 °C or more, a warm night a low that stayed at 20 °C or more. "Both" is a hot day whose low also stayed at 20 °C, the days with no relief.
The low is Environment Canada's minimum for the calendar day, so the night is usually that day's early morning. Counts from the daily values at Shanty Bay, which records to the nearest half degree; the station sits by the bay, which keeps its nights milder than inland.
Days whose low fell to −20 °C or below, from Environment Canada's daily minimum temperatures at Shanty Bay.
Annual mean temperature
The mean of the twelve monthly means of daily mean temperature; a year with any month missing more than five days is left blank.
Environment Canada's 1981–2010 normal for the station is 6.78 °C.
Sources:
Historical Climate Data, daily: SHANTY BAY (6117684) and BARRIE WPCC (6110557), Environment and Climate Change Canada.
Original document. Daily maximum, minimum and mean temperature, precipitation and snowfall, as downloaded. Every count, sum and mean on the page is this site's arithmetic from them; a year or season missing more than 10% of its days is left blank. Shanty Bay is on the north shore of Kempenfelt Bay about 5 km east of downtown Barrie. Canadian Climate Normals 1981–2010: SHANTY BAY and BARRIE WPCC, Environment and Climate Change Canada. Original document. Read through ECCC's GeoMet API. Both stations' 1981–2010 normals are calculated from 1981 to 2006 only. No 1991–2020 normals are published for either station. All retrieved October 11, 2026.
Has Barrie had tornadoes?
Two have struck the city. On May 31, 1985, at about 5 p.m., a tornado rated F4 crossed Barrie
from the southwest on a track 15 km long and up to 600 m wide; Environment Canada's database records 8 people
killed and 155 injured. On July 15, 2021, an EF2 tornado with winds estimated at 210 km/h tracked 12.5 km from
Barrie's south end toward Innisfil; the Northern Tornadoes Project counted 11 injuries and 470 houses damaged,
13 of them to EF2 level. Every other confirmed tornado within 30 km of City Hall was rated F0 to F2 or EF0.
Confirmed tornadoes within 30 km of Barrie City Hall, 1980–2009 and 2017–2026
Date
Nearest community
Rating
Path
Casualties and damage
Jarratt
F2
970 m long
Barrie
F4
15 km long, up to 600 m wide
8 killed, 155 injured
Essa
F1
500 m long
Warminster
F0
3 km long
Thornton
F0
Orillia
F0
Deerhurst
F0
Elmvale
F0
1.5 km long
New Lowell
F1
12.6 km long
Moonstone
F0
3.2 km long
2010 to 2016: no record in either source
Oro Station
EF0
8.6 km long
Craighurst
EF0
Barrie to Innisfil
EF2
12.5 km long, up to 510 m wide
11 injured; 470 houses damaged
Borden
EF0
1.7 km long
Ratings to 2009 are Fujita (F) ratings from Environment Canada's verified database; from
2017 they are Enhanced Fujita (EF) ratings from Western University's Northern Tornadoes Project.
The two scales
are not the same. Neither source covers 2010 to 2016, so those years are a gap in the record, not a calm
stretch. The Northern Tornadoes Project also logged straight-line wind damage (downbursts) and funnel
sightings nearby that were not tornadoes; they are not listed. A blank cell means the source gives no
figure.
Sources:
Canadian National Tornado Database: Verified Events (1980–2009), Environment and Climate Change Canada.
Original document. The May 31, 1985 Barrie tornado: Fujita rating 4, 8 deaths, 155 injuries, a 15,000 m track up to 600 m wide. The full workbook is kept in research/weather/tornado/. Northern Tornadoes Project — Event Summaries (open data), events within 30 km of Barrie City Hall, Northern Tornadoes Project, Western University. Original document. The project's investigated events from 2017 on, each with its classification (tornado, downburst, vortex), Enhanced Fujita rating, path, injuries and damage summary. The 2021 Barrie tornado's record is final: EF2, an estimated 210 km/h, a 12.5 km track up to 510 m wide, 11 injuries and 470 houses damaged. The project permits non-commercial use with credit. All retrieved October 11, 2026.
About this record
Every figure on this page is this site's count or sum from Environment Canada's daily values,
unadjusted. Since 2007 Environment Canada has marked each day's values from this station with a
data-quality symbol (†) whose meaning its downloads do not state; they are used as published. Environment
Canada's homogenized long-term series, the right source for measuring a trend precisely, have no Barrie
station, and it publishes no 1991–2020 normals for one. 2026 is not drawn until the
year is complete.
Common questions
How much snow does Barrie get?
At Environment Canada's Shanty Bay station on Kempenfelt Bay, a winter brought 274 cm of snow on average over the ten seasons to 2025–26, and 290 cm over its first ten, from 1973–74. Single seasons range widely, which the chart on this page shows.
Is Barrie getting warmer?
At the Shanty Bay station the average annual temperature was 7.9 °C for 2016 to 2025, against 5.9 °C for 1973 to 1982, and nights of −20 °C or colder have become rarer.
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