平年値（旬ごとの値）
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前橋（群馬県) 平年値（旬ごとの値）
| 要素 | 海面気圧 (hPa) | 降水量 (mm) | 平均気温 (℃) | 日最高気温 (℃) | 日最低気温 (℃) | 相対湿度 (%) | 平均風速 (m/s) | 日照時間 (時) | 全天日射量 (MJ/㎡) | 降雪の深さ合計 (cm) | 最深積雪 (cm) | 雲量 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 統計期間 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2019 | |
| 資料年数 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 29 | |
| 1月 | 上旬 | 1015.6 | 5.3 | 4.1 | 9.5 | -0.1 | 53 | 2.9 | 71.0 | 9.5 | 2 | 2 | 3.5 @ |
| 中旬 | 1017.2 | 10.9 | 3.6 | 8.8 | -0.5 | 54 | 2.7 | 67.0 | 9.6 | 2 | 2 | 4.2 @ | |
| 下旬 | 1016.2 | 13.5 | 3.5 | 8.9 | -0.8 | 53 | 2.9 | 75.0 | 10.5 | 3 | 3 | 4.1 @ | |
| 2月 | 上旬 | 1015.6 | 5.7 | 3.7 | 9.2 | -0.7 | 52 | 3.0 | 72.4 | 11.8 | 3 | 3 | 4.4 @ |
| 中旬 | 1016.3 | 13.3 | 4.4 | 9.9 | 0.0 | 51 | 3.1 | 69.4 | 12.5 | 5 | 4 | 4.9 @ | |
| 下旬 | 1018.0 | 7.5 | 5.5 | 11.1 | 0.8 | 52 | 3.0 | 59.4 | 13.7 | 1 | 1 | 5.1 @ | |
| 3月 | 上旬 | 1015.8 | 20.4 | 6.5 | 12.0 | 2.0 | 54 | 2.9 | 66.4 | 13.8 | 1 | 1 | 5.4 @ |
| 中旬 | 1015.8 | 12.2 | 7.9 | 13.7 | 2.9 | 51 | 2.9 | 71.5 | 15.6 | 0 | 0 | 5.4 @ | |
| 下旬 | 1015.3 | 25.7 | 9.2 | 14.8 | 4.2 | 53 | 2.9 | 73.1 | 15.8 | 0 | 0 | 5.9 @ | |
| 4月 | 上旬 | 1014.7 | 24.9 | 11.5 | 17.4 | 6.3 | 54 | 3.0 | 70.0 | 16.9 | 0 | 0 | 6.0 @ |
| 中旬 | 1013.7 | 27.0 | 13.5 | 19.3 | 8.3 | 56 | 2.8 | 65.6 | 17.1 | --- | --- | 6.5 @ | |
| 下旬 | 1013.4 | 22.9 | 15.4 | 21.2 | 10.1 | 56 | 2.7 | 69.6 | 18.4 | --- | --- | 6.2 @ | |
| 5月 | 上旬 | 1012.7 | 22.0 | 17.3 | 23.0 | 12.2 | 58 | 2.4 | 64.1 | 18.0 | --- | --- | 6.8 @ |
| 中旬 | 1011.9 | 33.2 | 18.2 | 23.8 | 13.3 | 61 | 2.3 | 62.4 | 18.1 | --- | --- | 7.2 @ | |
| 下旬 | 1010.7 | 44.2 | 20.1 | 25.6 | 15.2 | 62 | 2.2 | 70.8 | 18.7 | --- | --- | 7.3 @ | |
| 6月 | 上旬 | 1010.4 | 30.4 | 21.0 | 26.3 | 16.5 | 64 | 2.3 | 59.4 | 18.2 | --- | --- | 7.6 @ |
| 中旬 | 1008.4 | 61.4 | 22.0 | 26.7 | 18.1 | 71 | 2.1 | 43.8 | 15.6 | --- | --- | 8.6 @ | |
| 下旬 | 1007.8 | 56.1 | 23.2 | 27.5 | 19.5 | 73 | 2.0 | 35.3 | 14.2 | --- | --- | 8.9 @ | |
| 7月 | 上旬 | 1008.0 | 66.4 | 24.6 | 29.1 | 21.0 | 74 | 1.8 | 40.6 | 14.8 | --- | --- | 8.6 @ |
| 中旬 | 1008.1 | 63.0 | 25.8 | 30.5 | 22.0 | 73 | 1.8 | 47.3 | 15.8 | --- | --- | 8.4 @ | |
| 下旬 | 1009.3 | 72.7 | 26.8 | 31.7 | 22.9 | 73 | 1.8 | 58.3 | 16.7 | --- | --- | 8.0 @ | |
| 8月 | 上旬 | 1009.8 | 50.6 | 27.6 | 32.8 | 23.5 | 70 | 2.2 | 62.0 | 17.6 | --- | --- | 7.4 @ |
| 中旬 | 1009.4 | 64.4 | 26.9 | 31.8 | 23.2 | 72 | 2.1 | 52.1 | 16.0 | --- | --- | 8.0 @ | |
| 下旬 | 1010.4 | 80.6 | 26.0 | 30.7 | 22.3 | 73 | 2.0 | 53.7 | 14.6 | --- | --- | 8.0 @ | |
| 9月 | 上旬 | 1011.0 | 70.3 | 25.0 | 29.5 | 21.3 | 73 | 1.8 | 46.1 | 13.7 | --- | --- | 7.9 @ |
| 中旬 | 1013.0 | 77.8 | 23.2 | 27.6 | 19.6 | 72 | 1.8 | 44.9 | 12.7 | --- | --- | 7.9 @ | |
| 下旬 | 1015.3 | 56.3 | 20.5 | 24.9 | 16.9 | 71 | 1.8 | 43.9 | 11.7 | --- | --- | 7.8 @ | |
| 10月 | 上旬 | 1015.9 | 59.7 | 19.1 | 23.6 | 15.5 | 70 | 1.9 | 43.7 | 11.1 | --- | --- | 7.7 @ |
| 中旬 | 1017.3 | 43.7 | 17.2 | 21.9 | 13.3 | 68 | 2.0 | 50.9 | 11.1 | --- | --- | 6.7 @ | |
| 下旬 | 1017.8 | 38.8 | 15.0 | 19.9 | 11.0 | 66 | 2.2 | 61.1 | 10.6 | --- | --- | 5.9 @ | |
| 11月 | 上旬 | 1018.6 | 10.2 | 13.1 | 18.4 | 8.8 | 63 | 2.5 | 60.5 | 10.3 | --- | --- | 5.4 @ |
| 中旬 | 1018.4 | 19.2 | 11.0 | 16.2 | 6.8 | 62 | 2.6 | 59.3 | 9.3 | --- | --- | 5.1 @ | |
| 下旬 | 1019.0 | 13.7 | 9.5 | 14.7 | 5.2 | 61 | 2.7 | 61.3 | 9.0 | 0 | 0 | 4.9 @ | |
| 12月 | 上旬 | 1018.4 | 8.3 | 7.6 | 12.9 | 3.4 | 59 | 2.6 | 61.3 | 8.6 | 0 | 0 | 4.6 @ |
| 中旬 | 1017.7 | 5.7 | 6.0 | 11.5 | 1.7 | 57 | 2.7 | 65.6 | 8.8 | 1 | 0 | 4.0 @ | |
| 下旬 | 1016.5 | 9.8 | 4.9 | 10.2 | 0.6 | 56 | 2.7 | 75.0 | 8.9 | 0 | 1 | 3.6 @ | |
- 「@」の付いた値は、参考値です。平年差や平年比に利用できません。