３か月ごとの値
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留萌（留萌地方) 2021年（３か月ごとの値） 詳細（気圧・降水量）
| 月～月 | 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 | 24時間 | 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 | 月日時～月日時 | 値 | 日 | 値 | 日 | ||||||||||||
11～1 | 1011.0 | 1014.2 | 994.0 | 01/29 | 395.0 | 21.0 ] | 11/09 | 23.5 ] | 11/09 13～11/10 13 | 5.5 | 12/07* | 3.0 | 11/03 | 89 | 76 | 65 | 14 | 0 | 0 | 0 | 0 |
12～2 | 1008.6 | 1011.8 | 966.5 | 02/16 | 307.0 | 32.5 ] | 02/16 | 34.0 ] | 02/15 18～02/16 18 | 5.5 | 12/07 | 1.5 | 01/02* | 85 | 71 | 63 | 8 | 1 | 0 | 0 | 0 |
1～3 | 1009.7 | 1012.9 | 966.5 | 02/16 | 203.5 | 32.5 ] | 02/16 | 34.0 ] | 02/15 18～02/16 18 | 5.0 | 01/02 | 2.0 | 03/10 | 72 | 54 | 44 | 4 | 1 | 0 | 0 | 0 |
2～4 | 1010.4 | 1013.6 | 966.5 | 02/16 | 187.5 | 32.5 | 02/16 | 34.0 | 02/15 18～02/16 18 | 5.5 | 04/18 | 2.0 | 03/10 | 58 | 44 | 37 | 4 | 1 | 0 | 0 | 0 |
3～5 | 1010.0 | 1013.1 | 986.2 | 04/18 | 173.5 | 25.5 | 03/02 | 35.5 | 05/16 07～05/17 07 | 5.5 | 04/18 | 2.0 | 03/10 | 52 | 35 | 29 | 5 | 0 | 0 | 0 | 0 |
4～6 | 1008.0 | 1011.1 | 986.2 | 04/18 | 154.0 | 23.5 | 05/16 | 35.5 | 05/16 07～05/17 07 | 5.5 | 04/18 | 1.5 | 06/06* | 41 | 29 | 25 | 5 | 0 | 0 | 0 | 0 |
5～7 | 1006.6 | 1009.6 | 988.6 | 06/04 | 96.5 | 23.5 | 05/16 | 35.5 | 05/16 07～05/17 07 | 5.0 | 05/16 | 2.0 | 07/05 | 37 | 20 | 16 | 3 | 0 | 0 | 0 | 0 |
6～8 | 1007.8 | 1010.7 | 988.6 | 06/04 | 87.5 | 24.0 | 08/10 | 39.5 | 08/09 13～08/10 13 | 11.0 | 08/09 | 3.0 | 08/09 | 36 | 18 | 13 | 3 | 0 | 0 | 0 | 0 |
7～9 | 1009.8 | 1012.7 | 999.8 | 09/30 | 184.0 | 51.0 | 09/12 | 51.0 | 09/12 00～09/12 24 | 21.5 | 09/12 | 8.5 | 09/12 | 43 | 21 | 17 | 5 | 2 | 1 | 0 | 0 |
8～10 | 1011.8 | 1014.7 | 999.8 | 09/30 | 388.5 | 51.0 | 09/12 | 60.0 | 10/10 20～10/11 06 | 22.5 | 10/11 | 9.0 | 10/10 | 54 | 38 | 32 | 10 | 5 | 1 | 0 | 0 |
9～11 | 1012.5 | 1015.5 | 992.0 | 11/22* | 500.0 | 51.0 | 09/12 | 60.0 | 10/10 20～10/11 06 | 22.5 | 10/11 | 9.0 | 10/10 | 61 | 49 | 45 | 14 | 5 | 1 | 0 | 0 |
10～12 | 1011.0 | 1014.1 | 984.9 | 12/01 | 592.0 | 38.5 ] | 10/21 | 60.0 ] | 10/10 20～10/11 06 | 22.5 ] | 10/11 | 9.0 | 10/10 | 75 | 68 | 60 | 19 | 4 | 0 | 0 | 0 |