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Chitose, Japan climate
Dfb Warm-summer humid continental
Chitose has a strongly seasonal cool-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is August with an average daily high near 77°F, while the coldest is January averaging around 9°F at night. Precipitation totals about 39 inches a year and is strongly seasonal — August alone averages 6.1 inches while January barely receives 1.01 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)Chitose climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 30 | 31 | 39 | 52 | 62 | 68 | 73 | 77 | 73 | 61 | 48 | 35 |
| Avg temp (°F) | 21 | 22 | 31 | 42 | 52 | 59 | 66 | 70 | 63 | 51 | 39 | 27 |
| Avg low (°F) | 9 | 10 | 22 | 32 | 43 | 53 | 60 | 64 | 55 | 40 | 29 | 16 |
| Precipitation (in) | 1.0 | 1.2 | 1.8 | 2.6 | 3.5 | 3.8 | 4.5 | 6.1 | 5.5 | 3.7 | 3.2 | 1.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 30 | 31 | 39 | 52 | 62 | 68 |
| Avg temp (°F) | 21 | 22 | 31 | 42 | 52 | 59 |
| Avg low (°F) | 9 | 10 | 22 | 32 | 43 | 53 |
| Precipitation (in) | 1.0 | 1.2 | 1.8 | 2.6 | 3.5 | 3.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 73 | 77 | 73 | 61 | 48 | 35 |
| Avg temp (°F) | 66 | 70 | 63 | 51 | 39 | 27 |
| Avg low (°F) | 60 | 64 | 55 | 40 | 29 | 16 |
| Precipitation (in) | 4.5 | 6.1 | 5.5 | 3.7 | 3.2 | 1.9 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 81 | 76 | 71 | 71 | 71 | 76 | 79 | 75 | 70 | 69 | 77 | 81 |
| Relative humidity (%) | 92 | 90 | 87 | 82 | 82 | 84 | 86 | 86 | 85 | 84 | 87 | 91 |
| Wind speed (mph) | 6.6 | 7.2 | 7.2 | 7.2 | 6.5 | 5.2 | 4.9 | 4.8 | 5.2 | 5.7 | 6.3 | 6.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 81 | 76 | 71 | 71 | 71 | 76 |
| Relative humidity (%) | 92 | 90 | 87 | 82 | 82 | 84 |
| Wind speed (mph) | 6.6 | 7.2 | 7.2 | 7.2 | 6.5 | 5.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 79 | 75 | 70 | 69 | 77 | 81 |
| Relative humidity (%) | 86 | 86 | 85 | 84 | 87 | 91 |
| Wind speed (mph) | 4.9 | 4.8 | 5.2 | 5.7 | 6.3 | 6.4 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Chitose, about 6 km from the city centre.
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.