平年値（旬ごとの値）
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苫小牧（胆振地方) 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～ 2020 | 1991～ 2020 | 1991～ 2004 | |
| 資料年数 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 0 | 30 | 30 | 14 | |
| 1月 | 上旬 | 1011.7 | 14.6 | -2.9 | 1.1 | -7.3 | 69 | 3.1 | 45.5 | /// | 11 | 11 | 6.1 @ |
| 中旬 | 1014.7 | 11.3 | -3.9 | 0.2 | -8.5 | 70 | 3.0 | 46.2 | /// | 15 | 17 | 6.5 @ | |
| 下旬 | 1013.3 | 12.8 | -3.8 | 0.2 | -8.4 | 70 | 3.3 | 50.4 | /// | 16 | 21 | 6.3 @ | |
| 2月 | 上旬 | 1012.8 | 9.6 | -4.1 | 0.1 | -8.9 | 70 | 3.4 | 49.1 | /// | 15 | 21 | 6.1 @ |
| 中旬 | 1013.5 | 12.6 | -3.0 | 1.1 | -7.7 | 70 | 3.6 | 50.2 | /// | 14 | 22 | 6.3 @ | |
| 下旬 | 1015.7 | 15.3 | -2.2 | 1.9 | -6.9 | 71 | 3.5 | 45.4 | /// | 13 | 22 | 6.5 @ | |
| 3月 | 上旬 | 1014.0 | 21.0 | -1.2 | 2.6 | -5.5 | 71 | 3.5 | 51.2 | /// | 13 | 18 | 6.6 @ |
| 中旬 | 1013.3 | 13.7 | 0.6 | 4.5 | -3.4 | 71 | 3.4 | 50.3 | /// | 8 | 12 | 6.8 @ | |
| 下旬 | 1013.2 | 18.8 | 1.9 | 6.1 | -2.3 | 71 | 3.3 | 64.1 | /// | 5 | 6 | 6.7 @ | |
| 4月 | 上旬 | 1013.1 | 18.2 | 3.8 | 8.1 | -0.4 | 72 | 3.4 | 56.9 | /// | 1 | 1 | 6.6 @ |
| 中旬 | 1012.8 | 27.8 | 5.2 | 9.4 | 1.3 | 74 | 3.4 | 56.4 | /// | 1 | 0 | 6.9 @ | |
| 下旬 | 1012.3 | 29.7 | 6.9 | 11.2 | 3.0 | 76 | 3.4 | 60.3 | /// | 0 | 0 | 6.8 @ | |
| 5月 | 上旬 | 1011.8 | 47.8 | 8.6 | 12.9 | 4.9 | 76 | 3.6 | 58.5 | /// | --- | --- | 7.4 @ |
| 中旬 | 1011.6 | 40.6 | 9.9 | 13.9 | 6.5 | 79 | 3.4 | 55.4 | /// | --- | --- | 7.6 @ | |
| 下旬 | 1011.1 | 42.5 | 11.5 | 15.4 | 8.3 | 83 | 3.2 | 58.1 | /// | --- | --- | 7.7 @ | |
| 6月 | 上旬 | 1011.4 | 35.7 | 12.6 | 15.9 | 9.9 | 86 | 2.7 | 41.1 | /// | --- | --- | 8.2 @ |
| 中旬 | 1009.7 | 43.1 | 14.0 | 17.2 | 11.6 | 87 | 2.8 | 36.8 | /// | --- | --- | 8.1 @ | |
| 下旬 | 1008.6 | 32.8 | 15.5 | 18.7 | 13.1 | 86 | 2.8 | 41.8 | /// | --- | --- | 8.2 @ | |
| 7月 | 上旬 | 1008.9 | 56.0 | 16.9 | 19.9 | 14.6 | 88 | 2.8 | 37.6 | /// | --- | --- | 8.6 @ |
| 中旬 | 1008.9 | 51.6 | 18.1 | 21.0 | 16.0 | 88 | 2.9 | 35.2 | /// | --- | --- | 8.8 @ | |
| 下旬 | 1009.8 | 55.9 | 19.4 | 22.1 | 17.5 | 89 | 2.8 | 35.3 | /// | --- | --- | 8.9 @ | |
| 8月 | 上旬 | 1010.3 | 53.8 | 20.6 | 23.5 | 18.5 | 87 | 2.8 | 39.9 | /// | --- | --- | 8.1 @ |
| 中旬 | 1010.4 | 66.5 | 20.5 | 23.3 | 18.3 | 87 | 3.0 | 34.5 | /// | --- | --- | 8.6 @ | |
| 下旬 | 1011.2 | 77.3 | 20.2 | 23.4 | 17.3 | 85 | 3.1 | 47.8 | /// | --- | --- | 7.9 @ | |
| 9月 | 上旬 | 1011.9 | 58.7 | 19.7 | 23.1 | 16.4 | 83 | 3.2 | 47.2 | /// | --- | --- | 7.4 @ |
| 中旬 | 1013.5 | 56.3 | 17.9 | 21.8 | 13.9 | 79 | 3.2 | 50.3 | /// | --- | --- | 7.4 @ | |
| 下旬 | 1015.6 | 59.9 | 15.8 | 20.2 | 11.1 | 77 | 3.4 | 55.5 | /// | --- | --- | 6.9 @ | |
| 10月 | 上旬 | 1015.6 | 43.8 | 13.8 | 18.3 | 8.9 | 76 | 3.4 | 49.7 | /// | --- | --- | 6.6 @ |
| 中旬 | 1016.3 | 35.3 | 11.4 | 16.2 | 6.0 | 74 | 3.2 | 53.5 | /// | --- | --- | 6.2 @ | |
| 下旬 | 1016.4 | 34.0 | 9.7 | 14.2 | 4.5 | 73 | 3.4 | 52.7 | /// | --- | --- | 6.3 @ | |
| 11月 | 上旬 | 1016.0 | 28.5 | 7.5 | 11.9 | 2.5 | 72 | 3.5 | 43.7 | /// | 0 | 0 | 6.2 @ |
| 中旬 | 1016.0 | 28.1 | 4.7 | 9.1 | 0.0 | 71 | 3.4 | 41.4 | /// | 1 | 1 | 6.7 @ | |
| 下旬 | 1016.6 | 29.2 | 2.5 | 6.7 | -1.8 | 70 | 3.4 | 42.0 | /// | 3 | 2 | 6.3 @ | |
| 12月 | 上旬 | 1015.8 | 22.5 | 0.3 | 4.3 | -3.8 | 69 | 3.2 | 40.4 | /// | 8 | 7 | 6.5 @ |
| 中旬 | 1014.4 | 17.2 | -1.6 | 2.5 | -5.8 | 69 | 3.2 | 43.4 | /// | 9 | 8 | 5.9 @ | |
| 下旬 | 1012.8 | 16.9 | -2.2 | 1.8 | -6.5 | 71 | 3.1 | 43.9 | /// | 12 | 10 | 6.2 @ | |
- 「@」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。