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Hokuto, Japan climate
Cfa Humid subtropical
Hokuto has a seasonal cool-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 29°C, while the coldest is January averaging around −5°C at night. Precipitation totals about 1147 mm a year and is strongly seasonal — September alone averages 171 mm while December barely receives 32 mm.
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)Hokuto climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 5 | 6 | 10 | 16 | 21 | 24 | 27 | 29 | 24 | 19 | 13 | 8 |
| Avg temp (°C) | 0 | 1 | 4 | 10 | 15 | 18 | 22 | 23 | 19 | 13 | 8 | 3 |
| Avg low (°C) | −5 | −5 | −1 | 4 | 10 | 14 | 19 | 19 | 15 | 9 | 3 | −2 |
| Precipitation (mm) | 41 | 42 | 77 | 82 | 96 | 135 | 155 | 127 | 171 | 139 | 48 | 32 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 5 | 6 | 10 | 16 | 21 | 24 |
| Avg temp (°C) | 0 | 1 | 4 | 10 | 15 | 18 |
| Avg low (°C) | −5 | −5 | −1 | 4 | 10 | 14 |
| Precipitation (mm) | 41 | 42 | 77 | 82 | 96 | 135 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 29 | 24 | 19 | 13 | 8 |
| Avg temp (°C) | 22 | 23 | 19 | 13 | 8 | 3 |
| Avg low (°C) | 19 | 19 | 15 | 9 | 3 | −2 |
| Precipitation (mm) | 155 | 127 | 171 | 139 | 48 | 32 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 50 | 55 | 62 | 66 | 72 | 83 | 78 | 69 | 73 | 67 | 55 | 49 |
| Relative humidity (%) | 88 | 85 | 80 | 76 | 75 | 80 | 83 | 82 | 84 | 85 | 85 | 86 |
| Wind speed (mph) | 5.6 | 5.8 | 5.7 | 5.3 | 4.4 | 3.6 | 3.7 | 3.2 | 3.4 | 3.6 | 4.3 | 5.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 50 | 55 | 62 | 66 | 72 | 83 |
| Relative humidity (%) | 88 | 85 | 80 | 76 | 75 | 80 |
| Wind speed (mph) | 5.6 | 5.8 | 5.7 | 5.3 | 4.4 | 3.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 78 | 69 | 73 | 67 | 55 | 49 |
| Relative humidity (%) | 83 | 82 | 84 | 85 | 85 | 86 |
| Wind speed (mph) | 3.7 | 3.2 | 3.4 | 3.6 | 4.3 | 5.3 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Oizumi, about 3 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.