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Burlington, Ontario climate
Dfb Warm-summer humid continental
Burlington has a strongly seasonal cool-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is July with an average daily high near 82°F, while the coldest is January averaging around 18°F at night. Precipitation is fairly even year-round, totalling about 31 inches.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Burlington climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 32 | 34 | 42 | 54 | 67 | 76 | 82 | 80 | 73 | 60 | 48 | 37 |
| Avg temp (°F) | 25 | 26 | 34 | 45 | 56 | 66 | 71 | 69 | 63 | 51 | 41 | 31 |
| Avg low (°F) | 18 | 18 | 25 | 35 | 46 | 55 | 60 | 59 | 52 | 42 | 33 | 25 |
| Precipitation (in) | 2.2 | 2.1 | 2.6 | 3.2 | 2.9 | 3.0 | 3.1 | 2.1 | 2.6 | 2.8 | 2.3 | 2.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 32 | 34 | 42 | 54 | 67 | 76 |
| Avg temp (°F) | 25 | 26 | 34 | 45 | 56 | 66 |
| Avg low (°F) | 18 | 18 | 25 | 35 | 46 | 55 |
| Precipitation (in) | 2.2 | 2.1 | 2.6 | 3.2 | 2.9 | 3.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 82 | 80 | 73 | 60 | 48 | 37 |
| Avg temp (°F) | 71 | 69 | 63 | 51 | 41 | 31 |
| Avg low (°F) | 60 | 59 | 52 | 42 | 33 | 25 |
| Precipitation (in) | 3.1 | 2.1 | 2.6 | 2.8 | 2.3 | 2.2 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 78 | 74 | 73 | 73 | 72 | 67 | 63 | 62 | 62 | 72 | 75 | 77 |
| Relative humidity (%) | 89 | 88 | 82 | 77 | 73 | 70 | 65 | 67 | 70 | 78 | 84 | 88 |
| Wind speed (mph) | 9.4 | 9.5 | 8.7 | 8.0 | 6.6 | 5.9 | 5.6 | 5.3 | 5.8 | 6.8 | 7.4 | 8.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 78 | 74 | 73 | 73 | 72 | 67 |
| Relative humidity (%) | 89 | 88 | 82 | 77 | 73 | 70 |
| Wind speed (mph) | 9.4 | 9.5 | 8.7 | 8.0 | 6.6 | 5.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 63 | 62 | 62 | 72 | 75 | 77 |
| Relative humidity (%) | 65 | 67 | 70 | 78 | 84 | 88 |
| Wind speed (mph) | 5.6 | 5.3 | 5.8 | 6.8 | 7.4 | 8.1 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 22 years of daily observations at Hamilton Rbg CS, a weather station, about 12 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.