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Hirosaki, Japan climate
Cfa Humid subtropical
Hirosaki has a strongly 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. Around 1255 mm of precipitation falls each year, peaking in August (141 mm) and easing off in April (66 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)Hirosaki climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 2 | 3 | 7 | 14 | 20 | 24 | 27 | 29 | 25 | 18 | 11 | 4 |
| Avg temp (°C) | −2 | −1 | 2 | 9 | 14 | 18 | 22 | 24 | 19 | 13 | 7 | 1 |
| Avg low (°C) | −5 | −5 | −2 | 3 | 9 | 14 | 18 | 19 | 15 | 8 | 2 | −2 |
| Precipitation (mm) | 126 | 100 | 82 | 66 | 66 | 72 | 115 | 141 | 136 | 108 | 114 | 130 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 2 | 3 | 7 | 14 | 20 | 24 |
| Avg temp (°C) | −2 | −1 | 2 | 9 | 14 | 18 |
| Avg low (°C) | −5 | −5 | −2 | 3 | 9 | 14 |
| Precipitation (mm) | 126 | 100 | 82 | 66 | 66 | 72 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 29 | 25 | 18 | 11 | 4 |
| Avg temp (°C) | 22 | 24 | 19 | 13 | 7 | 1 |
| Avg low (°C) | 18 | 19 | 15 | 8 | 2 | −2 |
| Precipitation (mm) | 115 | 141 | 136 | 108 | 114 | 130 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 88 | 84 | 78 | 72 | 70 | 74 | 77 | 71 | 71 | 70 | 79 | 86 |
| Relative humidity (%) | 93 | 91 | 85 | 81 | 80 | 82 | 84 | 84 | 84 | 84 | 86 | 90 |
| Wind speed (mph) | 4.7 | 5.7 | 4.6 | 2.7 | 1.5 | 1.2 | 1.1 | 1.1 | 1.2 | 1.4 | 1.8 | 3.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 88 | 84 | 78 | 72 | 70 | 74 |
| Relative humidity (%) | 93 | 91 | 85 | 81 | 80 | 82 |
| Wind speed (mph) | 4.7 | 5.7 | 4.6 | 2.7 | 1.5 | 1.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 77 | 71 | 71 | 70 | 79 | 86 |
| Relative humidity (%) | 84 | 84 | 84 | 84 | 86 | 90 |
| Wind speed (mph) | 1.1 | 1.1 | 1.2 | 1.4 | 1.8 | 3.0 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Hirosaki, 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.