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Aomori, Japan climate
Cfa Humid subtropical
Aomori has a seasonal cool-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 82°F, while the coldest is January averaging around 26°F at night. Around 53 inches of precipitation falls each year, peaking in December (6.1 inches) and easing off in April (2.7 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)Aomori climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 35 | 37 | 44 | 57 | 66 | 72 | 79 | 82 | 76 | 65 | 52 | 40 |
| Avg temp (°F) | 30 | 31 | 37 | 47 | 57 | 64 | 71 | 74 | 68 | 56 | 45 | 35 |
| Avg low (°F) | 26 | 26 | 31 | 39 | 49 | 57 | 65 | 68 | 60 | 48 | 38 | 29 |
| Precipitation (in) | 5.5 | 3.9 | 3.0 | 2.7 | 3.0 | 3.0 | 5.1 | 5.6 | 5.2 | 4.7 | 5.4 | 6.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 35 | 37 | 44 | 57 | 66 | 72 |
| Avg temp (°F) | 30 | 31 | 37 | 47 | 57 | 64 |
| Avg low (°F) | 26 | 26 | 31 | 39 | 49 | 57 |
| Precipitation (in) | 5.5 | 3.9 | 3.0 | 2.7 | 3.0 | 3.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 79 | 82 | 76 | 65 | 52 | 40 |
| Avg temp (°F) | 71 | 74 | 68 | 56 | 45 | 35 |
| Avg low (°F) | 65 | 68 | 60 | 48 | 38 | 29 |
| Precipitation (in) | 5.1 | 5.6 | 5.2 | 4.7 | 5.4 | 6.1 |
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 (%) | 84 | 82 | 78 | 79 | 82 | 84 | 86 | 84 | 81 | 79 | 80 | 83 |
| Wind speed (mph) | 10.8 | 10.8 | 9.7 | 7.5 | 5.7 | 4.7 | 4.7 | 4.9 | 5.7 | 6.9 | 8.1 | 9.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 88 | 84 | 78 | 72 | 70 | 74 |
| Relative humidity (%) | 84 | 82 | 78 | 79 | 82 | 84 |
| Wind speed (mph) | 10.8 | 10.8 | 9.7 | 7.5 | 5.7 | 4.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 77 | 71 | 71 | 70 | 79 | 86 |
| Relative humidity (%) | 86 | 84 | 81 | 79 | 80 | 83 |
| Wind speed (mph) | 4.7 | 4.9 | 5.7 | 6.9 | 8.1 | 9.8 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Aomori, 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.