Home › Cities › Canada › Ontario › Orillia

Orillia, Ontario climate

Dfb Warm-summer humid continental

Orillia has a strongly seasonal cold-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is July with an average daily high near 26°C, while the coldest is January averaging around −13°C at night. Precipitation is fairly even year-round, totalling about 1055 mm. Snowfall is heavy (321 cm of snow per year on average).

☀️ Summers

Warm

Highs near 26°C in July.

❄️ Winters

Very cold

Lows near −13°C in January.

🌧️ Rain & snow

Wet

About 1055 mm of rain a year, plus 321 cm of snow.

Snow falls through the winter months

⛅ Sky & trend

Often cloudy

Cloudy skies much of the year.

+0.6 °C vs 50 years ago

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation split into rain and snow · 1991–2020 normals · hover a month for the exact figures

Hours of sunshine per day

Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)

Orillia climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	−4	−3	4	11	18	23	26	25	21	13	6	0
Avg temp (°C)	−9	−7	−1	6	13	18	21	20	16	9	2	−4
Avg low (°C)	−13	−12	−6	1	7	13	15	15	11	5	−1	−7
Precipitation (mm)	117	69	60	79	85	87	84	82	81	95	103	111
Snowfall (cm)	90	55	27	15	0	—	—	—	—	5	42	86

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	−4	−3	4	11	18	23
Avg temp (°C)	−9	−7	−1	6	13	18
Avg low (°C)	−13	−12	−6	1	7	13
Precipitation (mm)	117	69	60	79	85	87
Snowfall (cm)	90	55	27	15	0	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	26	25	21	13	6	0
Avg temp (°C)	21	20	16	9	2	−4
Avg low (°C)	15	15	11	5	−1	−7
Precipitation (mm)	84	82	81	95	103	111
Snowfall (cm)	—	—	—	5	42	86

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	77	74	69	69	67	63	59	59	60	71	77	79
Relative humidity (%)	91	89	82	77	74	72	69	69	72	78	83	89
Wind speed (m/s)	3.0	3.1	2.5	1.9	1.3	1.2	1.2	1.3	1.5	1.7	2.0	2.5

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	77	74	69	69	67	63
Relative humidity (%)	91	89	82	77	74	72
Wind speed (m/s)	3.0	3.1	2.5	1.9	1.3	1.2

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	59	59	60	71	77	79
Relative humidity (%)	69	69	72	78	83	89
Wind speed (m/s)	1.2	1.3	1.5	1.7	2.0	2.5

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 25 years of daily observations at Coldwater Warminster, a weather station, about 10 km from the city centre. The underlying daily records come from NOAA's global station network.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →