旬ごとの値
 |  |
 |  |
 |  |  |  |  |
 |  |  |  |  |  |
 |  |  |  |  |
札幌（石狩地方) 1971年（旬ごとの値） 詳細（気圧・降水量）
| 月 | 旬 | 気圧(hPa) | 降水量(mm) | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 現地 | 海面 | 合計 | 最大 | 各階級の日数 | ||||||||||||||||
| 平均 | 平均 | 最低 | 日 | 1時間 | 10分間 | ≧0.0mm | ≧0.5mm | ≧1.0mm | ≧10.0mm | ≧30.0mm | ≧50.0mm | ≧70.0mm | ≧100.0mm | |||||||
| 値 | 日 | 値 | 日 | 値 | 日 | 値 | 日 | |||||||||||||
| 上旬 | 1013.7 | 1016.0 | -- | 43.5 | 12.5 | 07 | 4.0 | 07 | 1.0 | 07* | 9 | 6 | 6 | 2 | 0 | 0 | 0 | 0 | ||
| 中旬 | 1015.3 | 1017.7 | -- | 23.0 | 11.5 | 16 | 3.5 | 14 | 1.0 | 14 | 8 | 4 | 3 | 1 | 0 | 0 | 0 | 0 | ||
| 下旬 | 1007.3 | 1009.6 | -- | 42.0 | 13.5 | 22 | 2.0 | 29* | 1.0 | 24 | 9 | 8 | 8 | 1 | 0 | 0 | 0 | 0 | ||
| 上旬 | 1007.8 | 1010.2 | -- | 5.0 | 3.0 | 02 | 1.5 | 10 | 0.5 | 10* | 7 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | ||
| 中旬 | 1019.8 | 1022.1 | -- | 36.0 | 12.5 | 17 | 3.5 | 17 | 0.5 | 20* | 8 | 7 | 7 | 1 | 0 | 0 | 0 | 0 | ||
| 下旬 | 1014.0 | 1016.3 | -- | 9.0 | 4.0 | 24 | 2.0 | 24 | 0.5 | 25* | 8 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | ||
| 上旬 | 1006.5 | 1008.8 | -- | 32.0 | 9.5 | 06 | 2.5 | 06 | 1.0 | 06 | 10 | 7 | 6 | 0 | 0 | 0 | 0 | 0 | ||
| 中旬 | 1011.1 | 1013.4 | -- | 9.5 | 2.5 | 17* | 1.0 | 17* | 0.5 | 17* | 9 | 6 | 4 | 0 | 0 | 0 | 0 | 0 | ||
| 下旬 | 1010.8 | 1013.1 | -- | 6.0 | 4.0 | 29 | 2.0 | 29 | 0.5 | 29 | 8 | 5 | 1 | 0 | 0 | 0 | 0 | 0 | ||
| 上旬 | 1011.0 | 1013.2 | -- | 7.0 | 3.5 | 09 | 1.0 | 08 | 0.0 | 10* | 7 | 4 | 3 | 0 | 0 | 0 | 0 | 0 | ||
| 中旬 | 1011.9 | 1014.2 | -- | 6.0 | 3.5 | 14 | 1.0 | 17* | 0.5 | 17* | 4 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | ||
| 下旬 | 1010.8 | 1013.0 | -- | 7.0 | 2.5 | 27* | 2.0 | 27 | 1.0 | 27 | 4 | 4 | 3 | 0 | 0 | 0 | 0 | 0 | ||
| 上旬 | 1013.6 | 1015.9 | -- | 36.5 | 16.5 | 05 | 3.0 | 05* | 1.0 | 05* | 8 | 5 | 4 | 2 | 0 | 0 | 0 | 0 | ||
| 中旬 | 1007.5 | 1009.6 | -- | 0.5 | 0.5 | 11 | 0.5 | 11 | 0.5 | 11 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| 下旬 | 1005.2 | 1007.4 | -- | 27.5 | 15.5 | 21 | 3.5 | 21 | 1.0 | 31* | 8 | 6 | 4 | 1 | 0 | 0 | 0 | 0 | ||
| 上旬 | 1006.8 | 1009.0 | -- | 43.0 | 42.5 | 04 | 6.5 | 04 | 1.5 | 04 | 4 | 2 | 1 | 1 | 1 | 0 | 0 | 0 | ||
| 中旬 | 1002.8 | 1005.0 | -- | 35.5 | 15.5 | 18 | 6.0 | 18* | 3.5 | 11 | 4 | 3 | 3 | 2 | 0 | 0 | 0 | 0 | ||
| 下旬 | 1006.8 | 1009.0 | -- | 3.0 | 2.0 | 28 | 1.0 | 25 | 0.5 | 28* | 3 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | ||
| 上旬 | 1003.2 | 1005.3 | -- | 8.5 | 7.0 | 03 | 3.0 | 03 | 1.0 | 03 | 5 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | ||
| 中旬 | 1003.3 | 1005.4 | -- | 80.0 | 31.0 | 11 | 8.5 | 11 | 2.0 | 11 | 10 | 6 | 6 | 4 | 1 | 0 | 0 | 0 | ||
| 下旬 | 1004.0 | 1006.1 | -- | 3.0 | 2.0 | 29 | 1.5 | 29 | 0.5 | 29* | 8 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | ||
| 上旬 | 1006.4 | 1008.4 | -- | 0.0 | 0.0 | 10* | 0.0 | 10* | 0.0 | 10* | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| 中旬 | 1005.9 | 1008.0 | -- | 33.0 | 15.5 | 15* | 8.0 | 15 | 3.0 | 15 | 7 | 3 | 3 | 2 | 0 | 0 | 0 | 0 | ||
| 下旬 | 1011.2 | 1013.3 | -- | 7.0 | 4.0 | 21 | 2.0 | 27 | 0.5 | 27* | 5 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | ||
| 上旬 | 1010.9 | 1013.0 | -- | 67.5 | 46.5 | 05 | 16.5 | 05 | 4.0 | 05 | 4 | 3 | 3 | 2 | 1 | 0 | 0 | 0 | ||
| 中旬 | 1010.4 | 1012.6 | -- | 21.5 | 10.5 | 11 | 5.0 | 11 | 1.5 | 12* | 8 | 5 | 3 | 1 | 0 | 0 | 0 | 0 | ||
| 下旬 | 1011.8 | 1014.0 | -- | 37.5 | 14.5 | 27 | 4.5 | 27 | 1.5 | 30* | 6 | 5 | 5 | 2 | 0 | 0 | 0 | 0 | ||
| 上旬 | 1014.8 | 1017.0 | -- | 37.0 | 23.0 | 05 | 9.0 | 05 | 3.0 | 05 | 9 | 4 | 3 | 2 | 0 | 0 | 0 | 0 | ||
| 中旬 | 1013.9 | 1016.1 | -- | 14.0 | 9.5 | 11 | 3.5 | 16* | 2.0 | 16 | 5 | 4 | 2 | 0 | 0 | 0 | 0 | 0 | ||
| 下旬 | 1011.3 | 1013.5 | -- | 129.0 | 41.0 | 26 | 11.5 | 26 | 4.0 | 26 | 9 | 8 | 8 | 4 | 2 | 0 | 0 | 0 | ||
| 上旬 | 1016.3 | 1018.5 | -- | 18.0 | 8.0 | 08 | 2.5 | 08 | 1.0 | 09* | 9 | 6 | 5 | 0 | 0 | 0 | 0 | 0 | ||
| 中旬 | 1017.9 | 1020.1 | -- | 13.5 | 12.5 | 15 | 4.0 | 15 | 1.5 | 15 | 6 | 3 | 1 | 1 | 0 | 0 | 0 | 0 | ||
| 下旬 | 1007.9 | 1010.2 | -- | 18.0 | 6.5 | 30 | 1.0 | 30* | 0.5 | 25* | 10 | 8 | 7 | 0 | 0 | 0 | 0 | 0 | ||
| 上旬 | 1005.5 | 1007.8 | -- | 23.5 | 8.0 | 03 | 2.0 | 08* | 0.5 | 04* | 10 | 7 | 6 | 0 | 0 | 0 | 0 | 0 | ||
| 中旬 | 1012.7 | 1015.0 | -- | 59.0 | 35.0 | 12 | 5.0 | 12 | 1.0 | 15* | 10 | 6 | 5 | 1 | 1 | 0 | 0 | 0 | ||
| 下旬 | 1015.9 | 1018.3 | -- | 10.5 | 2.5 | 30* | 2.0 | 30* | 1.0 | 30 | 10 | 7 | 4 | 0 | 0 | 0 | 0 | 0 | ||