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Kaseda-shirakame, Japan climate
Cfa Humid subtropical
Kaseda-shirakame has a seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 90°F, while the coldest is January averaging around 39°F at night. Precipitation totals about 97 inches a year and is strongly seasonal — June alone averages 20.2 inches while January barely receives 3.67 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)Kaseda-shirakame climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 55 | 57 | 62 | 70 | 77 | 81 | 88 | 90 | 86 | 78 | 69 | 59 |
| Avg temp (°F) | 47 | 49 | 54 | 61 | 68 | 74 | 81 | 82 | 77 | 69 | 59 | 50 |
| Avg low (°F) | 39 | 40 | 45 | 53 | 60 | 68 | 75 | 76 | 70 | 60 | 50 | 42 |
| Precipitation (in) | 3.7 | 4.7 | 6.6 | 7.7 | 7.5 | 20.2 | 13.3 | 8.7 | 10.9 | 4.1 | 5.0 | 4.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 55 | 57 | 62 | 70 | 77 | 81 |
| Avg temp (°F) | 47 | 49 | 54 | 61 | 68 | 74 |
| Avg low (°F) | 39 | 40 | 45 | 53 | 60 | 68 |
| Precipitation (in) | 3.7 | 4.7 | 6.6 | 7.7 | 7.5 | 20.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 88 | 90 | 86 | 78 | 69 | 59 |
| Avg temp (°F) | 81 | 82 | 77 | 69 | 59 | 50 |
| Avg low (°F) | 75 | 76 | 70 | 60 | 50 | 42 |
| Precipitation (in) | 13.3 | 8.7 | 10.9 | 4.1 | 5.0 | 4.4 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 73 | 72 | 69 | 67 | 71 | 83 | 66 | 60 | 62 | 56 | 61 | 68 |
| Relative humidity (%) | 77 | 76 | 75 | 76 | 79 | 85 | 86 | 83 | 80 | 77 | 76 | 77 |
| Wind speed (mph) | 9.7 | 9.7 | 9.5 | 8.8 | 8.0 | 8.3 | 7.9 | 8.2 | 7.8 | 7.9 | 8.0 | 9.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 73 | 72 | 69 | 67 | 71 | 83 |
| Relative humidity (%) | 77 | 76 | 75 | 76 | 79 | 85 |
| Wind speed (mph) | 9.7 | 9.7 | 9.5 | 8.8 | 8.0 | 8.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 66 | 60 | 62 | 56 | 61 | 68 |
| Relative humidity (%) | 86 | 83 | 80 | 77 | 76 | 77 |
| Wind speed (mph) | 7.9 | 8.2 | 7.8 | 7.9 | 8.0 | 9.2 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Kaseda, inside the city.
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.