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Courtenay, British Columbia climate
Csb Warm-summer Mediterranean
Courtenay has a seasonal cool-temperate climate (Warm-summer Mediterranean, Köppen Csb). The hottest month is July with an average daily high near 25°C, while the coldest is January averaging around −1°C at night. Precipitation totals about 1397 mm a year and is strongly seasonal — November alone averages 229 mm while July barely receives 30 mm. Light snow accumulates each winter (34 cm of snow per year on average).
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 figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Courtenay climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 6 | 8 | 11 | 14 | 19 | 22 | 25 | 25 | 21 | 14 | 9 | 6 |
| Avg temp (°C) | 3 | 4 | 6 | 8 | 13 | 16 | 18 | 18 | 14 | 9 | 5 | 3 |
| Avg low (°C) | −1 | −1 | 1 | 3 | 6 | 9 | 12 | 11 | 8 | 5 | 2 | 0 |
| Precipitation (mm) | 220 | 129 | 131 | 82 | 48 | 53 | 30 | 41 | 62 | 155 | 229 | 216 |
| Snowfall (cm) | 10 | 7 | 6 | — | — | — | — | — | — | 0 | 2 | 9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 6 | 8 | 11 | 14 | 19 | 22 |
| Avg temp (°C) | 3 | 4 | 6 | 8 | 13 | 16 |
| Avg low (°C) | −1 | −1 | 1 | 3 | 6 | 9 |
| Precipitation (mm) | 220 | 129 | 131 | 82 | 48 | 53 |
| Snowfall (cm) | 10 | 7 | 6 | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 25 | 25 | 21 | 14 | 9 | 6 |
| Avg temp (°C) | 18 | 18 | 14 | 9 | 5 | 3 |
| Avg low (°C) | 12 | 11 | 8 | 5 | 2 | 0 |
| Precipitation (mm) | 30 | 41 | 62 | 155 | 229 | 216 |
| Snowfall (cm) | — | — | — | 0 | 2 | 9 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 75 | 71 | 75 | 72 | 68 | 67 | 51 | 52 | 54 | 68 | 74 | 77 |
| Relative humidity (%) | 94 | 90 | 87 | 82 | 79 | 79 | 79 | 80 | 83 | 88 | 93 | 95 |
| Wind speed (mph) | 1.4 | 1.4 | 1.4 | 1.3 | 1.1 | 1.0 | 1.0 | 1.0 | 1.2 | 1.4 | 1.4 | 1.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 75 | 71 | 75 | 72 | 68 | 67 |
| Relative humidity (%) | 94 | 90 | 87 | 82 | 79 | 79 |
| Wind speed (mph) | 1.4 | 1.4 | 1.4 | 1.3 | 1.1 | 1.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 51 | 52 | 54 | 68 | 74 | 77 |
| Relative humidity (%) | 79 | 80 | 83 | 88 | 93 | 95 |
| Wind speed (mph) | 1.0 | 1.0 | 1.2 | 1.4 | 1.4 | 1.4 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 27 years of daily observations at Courtenay Puntledge, a weather station, about 3 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.