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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 84°F, while the coldest is January averaging around 24°F at night. Around 49 inches of precipitation falls each year, peaking in August (5.5 inches) and easing off in April (2.6 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)Hirosaki climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 35 | 37 | 44 | 58 | 69 | 75 | 81 | 84 | 77 | 65 | 52 | 40 |
| Avg temp (°F) | 29 | 30 | 36 | 47 | 58 | 65 | 72 | 74 | 67 | 55 | 44 | 33 |
| Avg low (°F) | 24 | 24 | 29 | 38 | 48 | 57 | 65 | 67 | 59 | 47 | 36 | 28 |
| Precipitation (in) | 4.9 | 3.9 | 3.2 | 2.6 | 2.6 | 2.8 | 4.5 | 5.5 | 5.4 | 4.2 | 4.5 | 5.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 35 | 37 | 44 | 58 | 69 | 75 |
| Avg temp (°F) | 29 | 30 | 36 | 47 | 58 | 65 |
| Avg low (°F) | 24 | 24 | 29 | 38 | 48 | 57 |
| Precipitation (in) | 4.9 | 3.9 | 3.2 | 2.6 | 2.6 | 2.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 81 | 84 | 77 | 65 | 52 | 40 |
| Avg temp (°F) | 72 | 74 | 67 | 55 | 44 | 33 |
| Avg low (°F) | 65 | 67 | 59 | 47 | 36 | 28 |
| Precipitation (in) | 4.5 | 5.5 | 5.4 | 4.2 | 4.5 | 5.1 |
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.