Editing Barrie (section)

== Climate ==

Barrie has a [[humid continental climate]] ([[Humid continental climate#Koppen Dfb|Köppen climate classification ''Dfb'']]), with warm, humid summers, and cold, snowy winters. 

Winters are cold with frequent snowfall, the January average high temperature being {{convert|-3.2|C|0}}, with a mean temperature of {{convert|-7.8|C|0}}. Barrie is located in a [[snowbelt]], a region that experiences regular lake-effect snow every year. Snow squalls are a common occurrence between November and January when the water temperature is often higher than the cold air passing over [[Lake Huron]] and [[Georgian Bay]]. The city averages {{convert|286|cm|in|0}} of snow annually, the brunt of which coming from lake-effect snow events. [[Alberta clipper]]s and [[Colorado low]]s also generate ample snowfall in the region. Snow cover begins to build by the end of November, accumulating through December, and then lies through the end of February. March sees the spring thaw commence, with the snow cover being essentially gone by the beginning of April. Temperatures commonly drop to {{convert|-20.0|C|0}} and occasionally drop to {{convert|-30.0|C|0}} on the coldest nights of the year.

Summers in Barrie are warm with sometimes short stretches of hot, humid conditions. The average temperature in July is {{convert|20.1|C|0}}.Thunderstorms are very common in the summer months in Barrie due to the city being in a Great Lakes breeze [[convergence zone]]. Also a result, there storms are occasionally severe, bringing with them torrential rain, very strong winds and hail. Tornadoes are generally rare in the city however the deadly [[1985 Barrie tornado|F4]] rated Tornado did strike Barrie. In July 2021, an EF2 Tornado also hit the city.<ref>{{cite web | url=https://www.theweathernetwork.com/en/news/weather/forecasts/barrie-tornado-did-75-million-dollars-in-insured-damages | title=Powerful EF-2 July 15th tornadoes did $75 million in damages: Report | date=August 18, 2021 }}</ref> Barrie's average frost-free period is from May 26 to September 16, allowing a growing season of 113 days.

Precipitation falls year round but is typically heaviest in the summer months due to thunderstorm activity. The driest months are February through April, receiving around {{convert|60.0|mm|in|0}} of precipitation each month per annum. The wettest months are August and September, seeing upwards of {{convert|90.0|mm|in|0}} of precipitation each month. November is also a wet month, receiving {{convert|88.9|mm|in|0}} of precipitation in the form of both rain and snow. October remains relatively dry in comparison to the months preceding and succeeding it. Despite this however, October has the most precipitation days and rainy days out of every month with 15.6 and 15.5 respectively.

The coldest temperature ever recorded in Barrie was {{convert|-38.9|C|0}} on January 8, 1886.<ref name="January 1866">{{cite web
| publisher = [[Environment Canada]]
| url = http://climate.weather.gc.ca/climate_data/daily_data_e.html?hlyRange=%7C&dlyRange=1866-01-01%7C1958-06-30&mlyRange=1866-01-01%7C1958-12-01&StationID=4406&Prov=ON&urlExtension=_e.html&searchType=stnName&optLimit=yearRange&StartYear=1840&EndYear=2016&selRowPerPage=25&Line=0&searchMethod=contains&Month=1&Day=25&txtStationName=barrie&timeframe=2&Year=1866
| title = January 1866
| work = Canadian Climate Data
| date=October 31, 2011 | access-date = March 26, 2016}}</ref> The hottest temperature ever recorded was {{convert|38.9|C|0}} on July 5, 1911.<ref name="July 1911">{{cite web
| publisher = [[Environment Canada]]
| url = http://climate.weather.gc.ca/climate_data/daily_data_e.html?hlyRange=%7C&dlyRange=1866-01-01%7C1958-06-30&mlyRange=1866-01-01%7C1958-12-01&StationID=4406&Prov=ON&urlExtension=_e.html&searchType=stnName&optLimit=yearRange&StartYear=1840&EndYear=2016&selRowPerPage=25&Line=0&searchMethod=contains&Month=7&Day=25&txtStationName=barrie&timeframe=2&Year=1911
| title = July 1911
| work = Canadian Climate Data
| date=October 31, 2011 | access-date = March 26, 2016}}</ref>

{{Weather box
| metric first = yes
| single line  = yes
| location = Barrie Water Pollution Control Centre (1981&ndash;2010 normals, extremes 1866–present){{efn|The extreme temperatures listed are from 1866 to present.<ref name=extremesmetadata>
{{cite web |url= https://api.weather.gc.ca/collections/ltce-stations/items?f=csv&limit=30000&ELEMENT_NAME_E=TEMPERATURE |title= Technical Information and Metadata |work= Daily climate records (LTCE) |publisher= Environment Canada |access-date= October 15, 2024}}</ref>}}
| Jan record high C = 18.3
| Feb record high C = 14.0
| Mar record high C = 25.9
| Apr record high C = 30.5
| May record high C = 35.0
| Jun record high C = 35.6
| Jul record high C = 38.9
| Aug record high C = 37.8
| Sep record high C = 36.7
| Oct record high C = 30.0
| Nov record high C = 24.3
| Dec record high C = 19.5
| year record high C = 38.9
| Jan high C = -2.9
| Feb high C = -1.5
| Mar high C = 3.2
| Apr high C = 11.0
| May high C = 18.1
| Jun high C = 23.6
| Jul high C = 26.3
| Aug high C = 25.1
| Sep high C = 20.7
| Oct high C = 13.5
| Nov high C = 6.5
| Dec high C = 0.4
| year high C = 12.0
| Jan mean C = -7.7
| Feb mean C = -6.6
| Mar mean C = -2.1
| Apr mean C = 5.6
| May mean C = 12.3
| Jun mean C = 17.9
| Jul mean C = 20.8
| Aug mean C = 19.7
| Sep mean C = 15.3
| Oct mean C = 8.7
| Nov mean C = 2.7
| Dec mean C = -3.5
| year mean C = 6.9
| Jan low C = -12.4
| Feb low C = -11.7
| Mar low C = -7.4
| Apr low C = 0.2
| May low C = 6.5
| Jun low C = 12.3
| Jul low C = 15.3
| Aug low C = 14.3
| Sep low C = 10.0
| Oct low C = 3.9
| Nov low C = -1.0
| Dec low C = -7.3
| year low C = 1.9
| Jan record low C = -38.9
| Feb record low C = -37.2
| Mar record low C = -34.5
| Apr record low C = -19.4
| May record low C = -7.2
| Jun record low C = -2.2
| Jul record low C =  2.2
| Aug record low C =  0.0
| Sep record low C = -3.9
| Oct record low C = -9.4
| Nov record low C = -24.2
| Dec record low C = -36.7
| year record low C = -38.9
| precipitation colour = green
| Jan precipitation mm = 82.5
| Feb precipitation mm = 61.8
| Mar precipitation mm = 58.1
| Apr precipitation mm = 62.2
| May precipitation mm = 82.4
| Jun precipitation mm = 84.8
| Jul precipitation mm = 77.2
| Aug precipitation mm = 89.9
| Sep precipitation mm = 94.0
| Oct precipitation mm = 77.5
| Nov precipitation mm = 88.9
| Dec precipitation mm = 73.6
| year precipitation mm = 932.9
| rain colour = green
| Jan rain mm = 16.6
| Feb rain mm = 16.0
| Mar rain mm = 29.2
| Apr rain mm = 56.6
| May rain mm = 82.3
| Jun rain mm = 84.8
| Jul rain mm = 77.2
| Aug rain mm = 89.9
| Sep rain mm = 94.0
| Oct rain mm = 75.2
| Nov rain mm = 66.0
| Dec rain mm = 22.2
| year rain mm = 709.9
| snow colour = green
| Jan snow cm = 65.9
| Feb snow cm = 45.9
| Mar snow cm = 29.0
| Apr snow cm = 5.7
| May snow cm = 0.1
| Jun snow cm = 0.0
| Jul snow cm = 0.0
| Aug snow cm = 0.0
| Sep snow cm = 0.0
| Oct snow cm = 2.3
| Nov snow cm = 22.8
| Dec snow cm = 51.4
| year snow cm = 223.0
| unit precipitation days =  0.2 mm
| Jan precipitation days = 14.9
| Feb precipitation days = 12.3
| Mar precipitation days = 11.6
| Apr precipitation days = 12.2
| May precipitation days = 12.9
| Jun precipitation days = 11.4
| Jul precipitation days = 11.1
| Aug precipitation days = 11.8
| Sep precipitation days = 13.3
| Oct precipitation days = 15.6
| Nov precipitation days = 15.4
| Dec precipitation days = 13.8
| year precipitation days = 156.1
| unit rain days = 0.2 mm
| Jan rain days = 2.8
| Feb rain days = 3.0
| Mar rain days = 5.4
| Apr rain days = 11.3
| May rain days = 12.9
| Jun rain days = 11.4
| Jul rain days = 11.1
| Aug rain days = 11.8
| Sep rain days = 13.3
| Oct rain days = 15.5
| Nov rain days = 11.3
| Dec rain days = 4.6
| year rain days = 114.4
| unit snow days = 0.2 cm
| Jan snow days = 12.4
| Feb snow days = 10.0
| Mar snow days = 6.8
| Apr snow days = 1.5
| May snow days = 0.04
| Jun snow days = 0.0
| Jul snow days = 0.0
| Aug snow days = 0.0
| Sep snow days = 0.0
| Oct snow days = 0.54
| Nov snow days = 4.5
| Dec snow days = 9.6
| year snow days = 45.5
| source 1= [[Environment and Climate Change Canada]]<ref name="EnviroCanBWPCC">
{{cite web 
| url = https://climate.weather.gc.ca/climate_normals/results_1981_2010_e.html?searchType=stnProv&lstProvince=ON&txtCentralLatMin=0&txtCentralLatSec=0&txtCentralLongMin=0&txtCentralLongSec=0&stnID=4408&dispBack=0 |title=Barrie WPCC Ontario |work=Canadian Climate Normals 1981-2010 Station Data 
| date = October 31, 2011 
| publisher = Environment and Climate Change Canada
| access-date=April 6, 2025}}</ref><ref name=extremes>
{{cite web
| url = https://dd.weather.gc.ca/climate/ltce/daily/temperature/ON/climate_LTCE_Temperature-Records_ON_VSON151.csv
| title = Long Term Climate Extremes for Barrie Area (Virtual Station ID: VSON151)
| work = Daily climate records (LTCE)
| publisher = Environment Canada
| access-date =  April 6, 2025}}</ref>
}}