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Shinjō, Japan climate
Cfa Humid subtropical
Shinjō 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 −4°C at night. Around 2015 mm of precipitation falls each year, peaking in December (264 mm) and easing off in April (98 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)Shinjō climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 2 | 3 | 7 | 15 | 21 | 25 | 28 | 29 | 25 | 18 | 11 | 4 |
| Avg temp (°C) | −1 | −1 | 2 | 9 | 15 | 19 | 23 | 24 | 20 | 13 | 7 | 2 |
| Avg low (°C) | −4 | −4 | −2 | 3 | 10 | 15 | 19 | 20 | 16 | 9 | 3 | −1 |
| Precipitation (mm) | 238 | 154 | 127 | 98 | 108 | 126 | 220 | 196 | 140 | 156 | 187 | 264 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 2 | 3 | 7 | 15 | 21 | 25 |
| Avg temp (°C) | −1 | −1 | 2 | 9 | 15 | 19 |
| Avg low (°C) | −4 | −4 | −2 | 3 | 10 | 15 |
| Precipitation (mm) | 238 | 154 | 127 | 98 | 108 | 126 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 29 | 25 | 18 | 11 | 4 |
| Avg temp (°C) | 23 | 24 | 20 | 13 | 7 | 2 |
| Avg low (°C) | 19 | 20 | 16 | 9 | 3 | −1 |
| Precipitation (mm) | 220 | 196 | 140 | 156 | 187 | 264 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 77 | 75 | 73 | 71 | 71 | 77 | 80 | 71 | 76 | 72 | 74 | 79 |
| Relative humidity (%) | 91 | 89 | 84 | 80 | 81 | 83 | 86 | 84 | 83 | 83 | 86 | 90 |
| Wind speed (mph) | 6.9 | 7.4 | 6.1 | 4.3 | 3.1 | 2.7 | 2.5 | 2.7 | 3.1 | 3.6 | 4.2 | 5.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 77 | 75 | 73 | 71 | 71 | 77 |
| Relative humidity (%) | 91 | 89 | 84 | 80 | 81 | 83 |
| Wind speed (mph) | 6.9 | 7.4 | 6.1 | 4.3 | 3.1 | 2.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 80 | 71 | 76 | 72 | 74 | 79 |
| Relative humidity (%) | 86 | 84 | 83 | 83 | 86 | 90 |
| Wind speed (mph) | 2.5 | 2.7 | 3.1 | 3.6 | 4.2 | 5.5 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Shinjo, 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.