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Numata, Japan climate
Cfa Humid subtropical
Numata has a seasonal cool-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 87°F, while the coldest is January averaging around 24°F at night. Precipitation totals about 45 inches a year and is strongly seasonal — July alone averages 7.0 inches while December barely receives 1.49 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)Numata climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 41 | 43 | 51 | 62 | 72 | 77 | 84 | 87 | 78 | 67 | 57 | 47 |
| Avg temp (°F) | 32 | 33 | 40 | 51 | 61 | 68 | 75 | 76 | 69 | 57 | 46 | 37 |
| Avg low (°F) | 24 | 25 | 30 | 40 | 50 | 59 | 67 | 69 | 61 | 49 | 37 | 28 |
| Precipitation (in) | 1.7 | 1.7 | 2.5 | 2.6 | 3.6 | 5.1 | 7.0 | 6.6 | 6.0 | 4.5 | 1.9 | 1.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 41 | 43 | 51 | 62 | 72 | 77 |
| Avg temp (°F) | 32 | 33 | 40 | 51 | 61 | 68 |
| Avg low (°F) | 24 | 25 | 30 | 40 | 50 | 59 |
| Precipitation (in) | 1.7 | 1.7 | 2.5 | 2.6 | 3.6 | 5.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 84 | 87 | 78 | 67 | 57 | 47 |
| Avg temp (°F) | 75 | 76 | 69 | 57 | 46 | 37 |
| Avg low (°F) | 67 | 69 | 61 | 49 | 37 | 28 |
| Precipitation (in) | 7.0 | 6.6 | 6.0 | 4.5 | 1.9 | 1.5 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 50 | 55 | 60 | 65 | 71 | 82 | 81 | 72 | 75 | 68 | 55 | 49 |
| Relative humidity (%) | 93 | 92 | 86 | 81 | 80 | 84 | 86 | 86 | 88 | 88 | 89 | 91 |
| Wind speed (mph) | 6.1 | 6.4 | 6.1 | 5.2 | 4.2 | 3.2 | 2.9 | 2.9 | 3.4 | 3.7 | 4.1 | 5.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 50 | 55 | 60 | 65 | 71 | 82 |
| Relative humidity (%) | 93 | 92 | 86 | 81 | 80 | 84 |
| Wind speed (mph) | 6.1 | 6.4 | 6.1 | 5.2 | 4.2 | 3.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 81 | 72 | 75 | 68 | 55 | 49 |
| Relative humidity (%) | 86 | 86 | 88 | 88 | 89 | 91 |
| Wind speed (mph) | 2.9 | 2.9 | 3.4 | 3.7 | 4.1 | 5.3 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Numata, about 5 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.