３か月ごとの値
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倶知安（後志地方) 2015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 | 989.6 | 1013.2 | 984.1 | 12/17 | 666.5 | 31.0 | 12/24 | 42.0 | 12/25 15～12/26 15 | 10.5 | 12/16 | 4.5 | 11/12 | 83 | 74 | 67 | 33 | 1 | 0 | 0 | 0 |
12～2 | 988.4 | 1012.1 | 984.1 | 12/17 | 664.5 | 31.0 | 12/24 | 42.0 | 12/25 15～12/26 15 | 10.5 | 12/16 | 2.5 | 12/16 | 87 | 76 | 71 | 30 | 1 | 0 | 0 | 0 |
1～3 | 989.7 | 1013.3 | 977.6 | 03/11 | 529.5 | 111.0 | 03/10 | 118.0 | 03/09 19～03/10 19 | 18.0 | 03/10 | 4.0 | 03/10 | 79 | 66 | 59 | 18 | 1 | 1 | 1 | 1 |
2～4 | 990.9 | 1014.2 | 977.6 | 03/11 | 450.5 | 111.0 | 03/10 | 118.0 | 03/09 19～03/10 19 | 18.0 | 03/10 | 4.0 | 03/10 | 64 | 52 | 46 | 12 | 2 | 1 | 1 | 1 |
3～5 | 989.4 | 1012.3 | 977.6 | 03/11 | 382.0 | 111.0 | 03/10 | 118.0 | 03/09 19～03/10 19 | 18.0 | 03/10 | 4.0 | 03/10 | 57 | 40 | 32 | 11 | 2 | 1 | 1 | 1 |
4～6 | 988.2 | 1010.7 | 987.0 | 04/03 | 207.5 | 38.5 | 04/03 | 38.5 | 04/03 05～04/03 20 | 7.5 | 06/03 | 3.5 | 06/03 | 50 | 29 | 24 | 8 | 1 | 0 | 0 | 0 |
5～7 | 986.1 | 1008.2 | 992.7 | 07/01 | 205.5 | 25.5 | 07/18 | 32.5 | 07/18 06～07/19 06 | 8.5 | 07/18 | 5.5 | 07/18 | 54 | 30 | 26 | 8 | 0 | 0 | 0 | 0 |
6～8 | 987.5 | 1009.3 | 992.7 | 07/01 | 278.0 | 34.0 | 08/12 | 34.0 | 08/12 15～08/12 17 | 34.0 | 08/12 | 19.5 | 08/12 | 55 | 34 | 30 | 10 | 1 | 0 | 0 | 0 |
7～9 | 989.2 | 1011.0 | 992.7 | 07/01 | 413.0 | 72.5 | 09/02 | 72.5 | 09/02 09～09/02 24 | 34.0 | 08/12 | 19.5 | 08/12 | 60 | 43 | 37 | 13 | 2 | 1 | 1 | 0 |
8～10 | 990.4 | 1012.6 | 975.7 | 10/02 | 464.5 | 72.5 | 09/02 | 72.5 | 09/02 09～09/02 24 | 34.0 | 08/12 | 19.5 | 08/12 | 63 | 50 | 42 | 16 | 3 | 1 | 1 | 0 |
9～11 | 993.6 | 1016.4 | 975.7 | 10/02 | 455.5 | 72.5 | 09/02 | 72.5 | 09/02 09～09/02 24 | 17.5 | 09/02 | 6.0 | 09/21 | 64 | 51 | 44 | 17 | 2 | 1 | 1 | 0 |
10～12 | 994.2 | 1017.5 | 975.7 | 10/02 | 475.5 | 36.5 | 10/08 | 43.5 | 10/08 09～10/09 09 | 6.5 | 10/02 | 1.5 | 12/25* | 71 | 55 | 49 | 24 | 1 | 0 | 0 | 0 |