平年値（旬ごとの値）
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牛久（千葉県) 平年値（旬ごとの値）
| 要素 | 降水量 (mm) | 平均気温 (℃) | 日最高気温 (℃) | 日最低気温 (℃) | 平均風速 (m/s) | 日照時間 (h) | 降雪の深さ合計 (cm) | 最深積雪 (cm) | |
|---|---|---|---|---|---|---|---|---|---|
| 統計期間 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | /// | /// | |
| 資料年数 | 30 | 30 | 30 | 30 | 30 | 30 | 0 | 0 | |
| 1月 | 上旬 | 20.7 | 4.4 | 11.1 | -1.5 | 1.5 | 61.2 | /// | /// |
| 中旬 | 26.9 | 4.0 | 10.3 | -1.5 | 1.5 | 56.4 | /// | /// | |
| 下旬 | 34.9 | 4.2 | 10.3 | -1.4 | 1.7 | 64.9 | /// | /// | |
| 2月 | 上旬 | 20.8 | 4.3 | 10.7 | -1.5 | 1.7 | 58.6 | /// | /// |
| 中旬 | 29.3 | 5.1 | 11.3 | -0.5 | 1.7 | 53.8 | /// | /// | |
| 下旬 | 23.9 | 6.2 | 12.1 | 0.6 | 1.9 | 46.0 | /// | /// | |
| 3月 | 上旬 | 54.8 | 7.3 | 12.9 | 1.9 | 1.8 | 49.3 | /// | /// |
| 中旬 | 29.5 | 8.8 | 14.7 | 2.7 | 2.0 | 55.9 | /// | /// | |
| 下旬 | 53.8 | 9.8 | 15.5 | 4.1 | 1.9 | 55.6 | /// | /// | |
| 4月 | 上旬 | 47.4 | 12.0 | 17.9 | 6.1 | 2.0 | 59.7 | /// | /// |
| 中旬 | 50.1 | 13.8 | 19.4 | 8.3 | 2.0 | 54.2 | /// | /// | |
| 下旬 | 35.0 | 15.3 | 21.1 | 9.8 | 1.9 | 58.2 | /// | /// | |
| 5月 | 上旬 | 32.1 | 17.2 | 22.8 | 11.8 | 1.9 | 55.8 | /// | /// |
| 中旬 | 46.5 | 17.9 | 23.2 | 12.9 | 1.8 | 53.3 | /// | /// | |
| 下旬 | 51.8 | 19.3 | 24.9 | 14.4 | 1.7 | 61.1 | /// | /// | |
| 6月 | 上旬 | 39.9 | 20.1 | 25.3 | 15.5 | 1.6 | 49.4 | /// | /// |
| 中旬 | 70.5 | 21.3 | 25.9 | 17.6 | 1.7 | 36.8 | /// | /// | |
| 下旬 | 60.2 | 22.5 | 27.0 | 18.9 | 1.6 | 31.2 | /// | /// | |
| 7月 | 上旬 | 68.4 | 24.3 | 29.0 | 20.5 | 1.8 | 42.9 | /// | /// |
| 中旬 | 43.1 | 25.5 | 30.6 | 21.6 | 1.7 | 53.5 | /// | /// | |
| 下旬 | 40.3 | 26.2 | 31.3 | 22.3 | 1.6 | 62.8 | /// | /// | |
| 8月 | 上旬 | 26.6 | 27.0 | 32.4 | 22.9 | 1.6 | 68.3 | /// | /// |
| 中旬 | 34.7 | 26.6 | 31.8 | 22.7 | 1.6 | 62.4 | /// | /// | |
| 下旬 | 53.5 | 25.9 | 31.1 | 22.0 | 1.6 | 61.3 | /// | /// | |
| 9月 | 上旬 | 71.7 | 25.0 | 30.0 | 21.1 | 1.6 | 51.3 | /// | /// |
| 中旬 | 76.5 | 23.1 | 27.9 | 19.3 | 1.5 | 46.1 | /// | /// | |
| 下旬 | 89.0 | 20.5 | 25.3 | 16.6 | 1.5 | 38.3 | /// | /// | |
| 10月 | 上旬 | 106.4 | 19.3 | 24.0 | 15.4 | 1.5 | 36.6 | /// | /// |
| 中旬 | 73.0 | 17.4 | 22.4 | 13.2 | 1.4 | 39.3 | /// | /// | |
| 下旬 | 77.5 | 15.4 | 20.8 | 10.6 | 1.3 | 50.5 | /// | /// | |
| 11月 | 上旬 | 30.9 | 13.6 | 19.5 | 8.5 | 1.2 | 49.2 | /// | /// |
| 中旬 | 42.0 | 11.8 | 17.4 | 6.7 | 1.3 | 45.0 | /// | /// | |
| 下旬 | 41.0 | 9.9 | 15.9 | 4.7 | 1.3 | 47.9 | /// | /// | |
| 12月 | 上旬 | 27.7 | 8.1 | 14.2 | 2.8 | 1.3 | 48.7 | /// | /// |
| 中旬 | 19.9 | 6.5 | 12.8 | 0.9 | 1.3 | 53.5 | /// | /// | |
| 下旬 | 24.1 | 5.4 | 11.9 | -0.3 | 1.5 | 61.3 | /// | /// | |