平年値（年・月ごとの値）
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館山（千葉県) 平年値（年・月ごとの値） 主な要素
| 要素 | 気圧 | 降水量 | 気温 | 蒸気圧 | 相対湿度 | 風向・風速 | 日照時間 | 全天日射量 | 雪 | 雲量 | 大気現象 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 現地平均 (hPa) | 海面平均 (hPa) | 合計 (mm) | 平均 (℃) | 日最高 (℃) | 日最低 (℃) | 平均 (hPa) | 平均 (％) | 平均 (m/s) | 最多風向 | 合計 (時) | 平均 (MJ/㎡) | 降雪の深さ | 最深積雪 (cm) | 平均 | 雪日数 | 霧日数 | 雷日数 | ||
| 合計 (cm) | 日合計の最大 (cm) | ||||||||||||||||||
| 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～ 2006 | 1991～ 2006 | 1991～ 2006 | 1991～ 2006 | 2006～ 2020 | 2006～ 2020 | 1991～ 2006 |
| 資料年数 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 0 | 16 | 16 | 16 | 16 | 15 | 15 | 16 |
| 1月 | 1014.5 | 1015.4 | 85.9 | 6.4 | 11.3 | 1.2 | 6.1 | 63 | 3.4 | 南南東 | 176.8 | /// | 0 @ | 0 @ | 0 @ | 5.0 @ | 3.1 | 0.1 | 1.2 @ |
| 2月 | 1014.8 | 1015.7 | 81.9 | 7.0 | 11.9 | 1.8 | 6.5 | 64 | 3.1 | 北北東 | 155.2 | /// | 1 @ | 1 @ | 1 @ | 5.6 @ | 4.2 | 0.6 | 0.7 @ |
| 3月 | 1014.1 | 1015.0 | 160.9 | 10.1 | 14.6 | 5.1 | 8.6 | 68 | 3.6 | 南西 | 164.5 | /// | 0 @ | 0 @ | --- @ | 6.7 @ | 1.0 | 0.7 | 1.3 @ |
| 4月 | 1013.1 | 1014.0 | 155.7 | 14.5 | 19.0 | 9.7 | 12.1 | 73 | 3.8 | 南西 | 179.1 | /// | 0 @ | 0 @ | --- @ | 6.6 @ | 0.1 | 0.6 | 1.2 @ |
| 5月 | 1011.2 | 1012.1 | 153.2 | 18.5 | 22.8 | 14.5 | 16.5 | 77 | 3.4 | 南西 | 185.0 | /// | --- @ | --- @ | --- @ | 7.4 @ | 0.0 | 0.6 | 1.3 @ |
| 6月 | 1008.4 | 1009.2 | 211.5 | 21.5 | 25.2 | 18.4 | 21.4 | 83 | 3.4 | 東 | 135.3 | /// | --- @ | --- @ | --- @ | 8.4 @ | 0.0 | 1.4 | 0.6 @ |
| 7月 | 1008.3 | 1009.1 | 179.2 | 25.2 | 28.9 | 22.4 | 26.9 | 84 | 4.0 | 南西 | 179.2 | /// | --- @ | --- @ | --- @ | 7.6 @ | 0.0 | 0.9 | 1.2 @ |
| 8月 | 1009.4 | 1010.3 | 103.4 | 26.7 | 30.8 | 23.7 | 28.5 | 82 | 3.3 | 南西 | 216.2 | /// | --- @ | --- @ | --- @ | 6.7 @ | 0.0 | 0.4 | 1.5 @ |
| 9月 | 1012.0 | 1012.8 | 222.0 | 23.7 | 27.8 | 20.3 | 23.8 | 81 | 3.1 | 東 | 152.5 | /// | --- @ | --- @ | --- @ | 7.2 @ | 0.0 | 0.3 | 2.2 @ |
| 10月 | 1015.3 | 1016.1 | 257.5 | 18.6 | 23.0 | 14.6 | 16.9 | 78 | 3.0 | 北北東 | 137.0 | /// | --- @ | --- @ | --- @ | 6.7 @ | 0.0 | 0.7 | 1.2 @ |
| 11月 | 1016.9 | 1017.8 | 143.5 | 13.7 | 18.4 | 8.9 | 11.8 | 74 | 3.0 | 南南東 | 146.5 | /// | --- @ | --- @ | --- @ | 5.7 @ | 0.1 | 0.9 | 1.5 @ |
| 12月 | 1015.7 | 1016.6 | 91.2 | 8.9 | 13.9 | 3.8 | 7.8 | 67 | 3.2 | 南南東 | 164.0 | /// | 0 @ | 0 @ | --- @ | 5.1 @ | 1.0 | 0.5 | 0.7 @ |
| 年 | 1012.8 | 1013.7 | 1845.9 | 16.2 | 20.6 | 12.0 | 15.6 | 75 | 3.4 | 南西 | 1991.7 | /// | 1 @ | 1 @ | 1 @ | 6.5 @ | 9.9 | 7.7 | 14.5 @ |
- 「@」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。