平年値（旬ごとの値）
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根室（根室地方) 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～ 2010 | 1991～ 2020 | 1991～ 2020 | 1991～ 2010 | |
| 資料年数 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 20 | 30 | 30 | 20 | |
| 1月 | 上旬 | 1009.2 | 8.6 | -2.6 | -0.1 | -5.5 | 70 | 6.3 | 48.6 | 6.1 @ | 11 | 11 | 5.9 @ |
| 中旬 | 1012.6 | 9.6 | -3.7 | -1.4 | -6.8 | 70 | 5.8 | 50.6 | 6.9 @ | 13 | 14 | 5.9 @ | |
| 下旬 | 1011.4 | 12.5 | -3.8 | -1.3 | -7.0 | 71 | 6.0 | 55.2 | 7.9 @ | 19 | 20 | 5.9 @ | |
| 2月 | 上旬 | 1010.8 | 6.0 | -4.4 | -1.8 | -7.7 | 71 | 5.9 | 57.4 | 9.6 @ | 12 | 21 | 5.6 @ |
| 中旬 | 1011.5 | 9.1 | -3.9 | -1.2 | -7.0 | 73 | 5.8 | 57.3 | 10.7 @ | 15 | 24 | 5.8 @ | |
| 下旬 | 1014.3 | 8.5 | -3.1 | -0.3 | -6.3 | 74 | 5.4 | 50.1 | 11.4 @ | 11 | 25 | 6.1 @ | |
| 3月 | 上旬 | 1012.7 | 14.4 | -2.3 | 0.5 | -5.2 | 74 | 5.7 | 60.3 | 13.5 @ | 16 | 24 | 5.8 @ |
| 中旬 | 1011.8 | 12.2 | -0.7 | 2.2 | -3.7 | 75 | 5.7 | 61.0 | 13.9 @ | 9 | 17 | 6.3 @ | |
| 下旬 | 1012.0 | 20.4 | 0.4 | 3.6 | -2.4 | 76 | 5.5 | 69.4 | 14.9 @ | 12 | 10 | 6.4 @ | |
| 4月 | 上旬 | 1012.1 | 20.7 | 2.0 | 5.5 | -0.8 | 78 | 5.4 | 58.7 | 15.7 @ | 6 | 9 | 6.9 @ |
| 中旬 | 1012.5 | 17.2 | 3.4 | 7.2 | 0.4 | 78 | 5.6 | 59.1 | 16.8 @ | 4 | 4 | 7.0 @ | |
| 下旬 | 1012.0 | 26.5 | 5.2 | 9.6 | 1.9 | 78 | 5.6 | 63.1 | 17.5 @ | 1 | 1 | 7.3 @ | |
| 5月 | 上旬 | 1011.8 | 31.0 | 6.6 | 10.8 | 3.3 | 80 | 5.5 | 56.9 | 17.9 @ | --- | 0 | 7.5 @ |
| 中旬 | 1011.8 | 31.7 | 7.5 | 11.9 | 4.3 | 81 | 5.2 | 57.4 | 17.7 @ | 0 | 0 | 7.5 @ | |
| 下旬 | 1011.7 | 33.5 | 8.8 | 13.0 | 5.7 | 86 | 5.0 | 57.2 | 17.6 @ | --- | --- | 8.0 @ | |
| 6月 | 上旬 | 1012.0 | 30.0 | 9.8 | 14.0 | 6.9 | 88 | 4.6 | 51.2 | 18.3 @ | --- | --- | 8.3 @ |
| 中旬 | 1010.5 | 44.7 | 10.9 | 14.8 | 8.2 | 90 | 4.4 | 38.2 | 17.8 @ | --- | --- | 8.6 @ | |
| 下旬 | 1009.3 | 28.3 | 12.1 | 16.1 | 9.1 | 89 | 4.3 | 46.7 | 18.2 @ | --- | --- | 8.2 @ | |
| 7月 | 上旬 | 1009.7 | 36.2 | 13.5 | 17.4 | 10.7 | 90 | 4.0 | 41.7 | 17.0 @ | --- | --- | 8.6 @ |
| 中旬 | 1009.7 | 40.8 | 14.6 | 18.4 | 11.8 | 91 | 4.0 | 37.7 | 16.5 @ | --- | --- | 9.0 @ | |
| 下旬 | 1010.6 | 38.1 | 16.4 | 20.2 | 13.6 | 91 | 4.1 | 38.0 | 15.9 @ | --- | --- | 8.7 @ | |
| 8月 | 上旬 | 1011.0 | 38.6 | 17.3 | 21.0 | 14.6 | 90 | 4.1 | 41.6 | 16.3 @ | --- | --- | 8.5 @ |
| 中旬 | 1011.4 | 44.1 | 17.3 | 20.7 | 14.9 | 90 | 4.3 | 37.2 | 15.1 @ | --- | --- | 8.6 @ | |
| 下旬 | 1011.9 | 49.6 | 17.5 | 20.9 | 15.1 | 88 | 4.4 | 46.2 | 14.3 @ | --- | --- | 8.1 @ | |
| 9月 | 上旬 | 1012.7 | 40.9 | 17.5 | 20.7 | 15.0 | 88 | 4.6 | 43.7 | 13.6 @ | --- | --- | 7.9 @ |
| 中旬 | 1013.8 | 69.3 | 16.5 | 19.7 | 13.9 | 84 | 4.8 | 48.5 | 12.8 @ | --- | --- | 7.5 @ | |
| 下旬 | 1015.8 | 49.9 | 14.7 | 17.8 | 11.9 | 81 | 5.1 | 52.3 | 12.4 @ | --- | --- | 6.9 @ | |
| 10月 | 上旬 | 1015.3 | 55.8 | 13.5 | 16.5 | 10.6 | 79 | 5.4 | 51.7 | 11.1 @ | --- | --- | 6.6 @ |
| 中旬 | 1015.7 | 32.5 | 11.7 | 14.8 | 8.4 | 75 | 5.6 | 56.0 | 10.6 @ | --- | --- | 6.0 @ | |
| 下旬 | 1015.6 | 37.8 | 9.9 | 12.9 | 6.8 | 74 | 5.8 | 55.2 | 9.0 @ | --- | --- | 6.0 @ | |
| 11月 | 上旬 | 1014.5 | 25.7 | 8.0 | 11.1 | 4.6 | 71 | 6.1 | 50.0 | 8.2 @ | --- | --- | 5.9 @ |
| 中旬 | 1014.4 | 30.3 | 5.5 | 8.4 | 2.2 | 70 | 6.0 | 47.2 | 7.1 @ | 0 | 0 | 6.0 @ | |
| 下旬 | 1014.7 | 27.2 | 3.3 | 6.3 | 0.0 | 68 | 6.2 | 51.1 | 6.6 @ | 2 | 1 | 5.3 @ | |
| 12月 | 上旬 | 1013.6 | 23.6 | 1.0 | 3.8 | -2.1 | 68 | 6.2 | 48.6 | 6.1 @ | 5 | 3 | 5.7 @ |
| 中旬 | 1011.9 | 16.8 | -0.8 | 1.9 | -3.9 | 68 | 6.1 | 50.4 | 6.0 @ | 10 | 7 | 4.8 @ | |
| 下旬 | 1010.5 | 18.7 | -1.8 | 0.8 | -4.8 | 70 | 6.1 | 52.8 | 6.0 @ | 14 | 12 | 5.7 @ | |
- 「@」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。