半旬ごとの値
 |  |
 |  |
 |  |  |  |  |
 |  |  |  |  |  |
 |  |  |  |  |
倶知安（後志地方) 2021年（半旬ごとの値） 詳細（気圧・降水量）
| 月 | 半旬 | 日～日 | 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 | ||||||||||||||
| 第1半旬 | 1～ 5 | 993.4 | 1017.8 | 1007.8 | 01 | 55.0 | 19.0 | 01 | 2.0 | 05* | 1.0 | 05* | 5 | 5 | 5 | 2 | 0 | 0 | 0 | 0 | |
| 第2半旬 | 6～10 | 984.7 | 1008.9 | 994.9 | 07 | 57.5 | 18.0 | 09 | 3.5 | 09 | 1.0 | 10* | 5 | 5 | 5 | 3 | 0 | 0 | 0 | 0 | |
| 第3半旬 | 11～15 | 991.7 | 1015.6 | 1003.8 | 13 | 30.5 | 11.0 | 11 | 3.0 | 14 | 1.0 | 14* | 5 | 5 | 5 | 1 | 0 | 0 | 0 | 0 | |
| 第4半旬 | 16～20 | 989.9 | 1014.0 | 998.6 | 16 | 41.5 | 11.0 | 19 | 3.0 | 19 | 1.5 | 19 | 5 | 5 | 5 | 1 | 0 | 0 | 0 | 0 | |
| 第5半旬 | 21～25 | 999.9 | 1024.1 | 1015.5 | 22 | 3.0 | 2.0 | 21 | 0.5 | 23* | 0.5 | 23* | 4 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | |
| 第6半旬 | 26～31 | 988.4 | 1012.2 | 990.9 | 29 | 27.5 | 9.5 | 31 | 2.0 | 31 | 0.5 | 31* | 5 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | |
| 第1半旬 | 1～ 5 | 986.3 | 1010.4 | 997.8 | 02 | 64.5 | 19.5 | 04* | 3.0 | 04 | 1.0 | 05* | 5 | 5 | 5 | 3 | 0 | 0 | 0 | 0 | |
| 第2半旬 | 6～10 | 985.6 | 1009.5 | 1005.6 | 08 | 50.0 | 16.5 | 08 | 2.5 | 08* | 1.0 | 09* | 5 | 5 | 5 | 3 | 0 | 0 | 0 | 0 | |
| 第3半旬 | 11～15 | 994.6 | 1018.5 | 978.2 | 15 | 13.5 | 13.5 | 15 | 3.0 | 15 | 1.0 | 15 | 3 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | |
| 第4半旬 | 16～20 | 971.1 | 994.4 | 970.2 | 16 | 59.0 | 26.0 | 16 | 3.5 | 17 | 1.0 | 17* | 5 | 5 | 5 | 2 | 0 | 0 | 0 | 0 | |
| 第5半旬 | 21～25 | 988.8 | 1012.8 | 1001.5 | 21 | 23.5 | 9.0 | 23 | 2.0 | 23 | 0.5 | 25* | 5 | 5 | 5 | 0 | 0 | 0 | 0 | 0 | |
| 第6半旬 | 26～28 | 1001.8 | 1026.1 | 1018.4 | 26 | 16.0 | 9.5 | 27 | 2.5 | 27 | 1.5 | 27 | 3 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | |
| 第1半旬 | 1～ 5 | 997.6 | 1021.4 | 1006.3 | 02 | 35.0 | 24.0 | 02 | 3.0 | 02 | 1.0 | 02 | 5 | 4 | 3 | 1 | 0 | 0 | 0 | 0 | |
| 第2半旬 | 6～10 | 998.8 | 1022.7 | 1007.4 | 10 | 15.5 | 10.5 | 10 | 2.5 | 10 | 1.0 | 10 | 5 | 4 | 4 | 1 | 0 | 0 | 0 | 0 | |
| 第3半旬 | 11～15 | 995.3 | 1018.8 | 1008.0 | 14 | 1.5 | 0.5 | 14* | 0.5 | 14* | 0.5 | 14* | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | |
| 第4半旬 | 16～20 | 992.0 | 1015.4 | 999.4 | 16 | 7.5 | 5.0 | 17 | 1.5 | 17 | 0.5 | 19* | 5 | 4 | 2 | 0 | 0 | 0 | 0 | 0 | |
| 第5半旬 | 21～25 | 988.0 | 1011.1 | 993.8 | 22 | 16.5 | 6.5 | 21 | 4.0 | 25 | 1.0 | 25 | 4 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | |
| 第6半旬 | 26～31 | 989.2 | 1012.1 | 996.5 | 29 | 9.0 | 7.5 | 29 | 5.5 | 29 | 2.5 | 29 | 3 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | |
| 第1半旬 | 1～ 5 | 997.0 | 1020.3 | 1011.5 | 04 | 13.5 | 7.0 | 03 | 2.5 | 03 | 1.0 | 03 | 2 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | |
| 第2半旬 | 6～10 | 995.8 | 1019.2 | 1010.6 | 07 | 10.5 | 7.0 | 09 | 2.5 | 09 | 1.0 | 09 | 4 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | |
| 第3半旬 | 11～15 | 996.6 | 1019.8 | 1000.1 | 13 | 8.0 | 7.5 | 13 | 3.0 | 13 | 1.0 | 13 | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | |
| 第4半旬 | 16～20 | 985.4 | 1008.2 | 988.0 | 18 | 56.0 | 34.0 | 18 | 4.0 | 18 | 1.0 | 18* | 3 | 3 | 3 | 2 | 1 | 0 | 0 | 0 | |
| 第5半旬 | 21～25 | 995.9 | 1018.9 | 1011.2 | 25 | 3.0 | 3.0 | 25 | 1.0 | 25 | 0.5 | 25 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | |
| 第6半旬 | 26～30 | 991.3 | 1014.1 | 998.4 | 30 | 4.0 | 4.0 | 30 | 1.0 | 30 | 0.5 | 30 | 4 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | |
| 第1半旬 | 1～ 5 | 985.2 | 1007.9 | 1000.7 | 02 | 5.5 | 3.0 | 03 | 1.0 | 05* | 0.5 | 04* | 5 | 4 | 3 | 0 | 0 | 0 | 0 | 0 | |
| 第2半旬 | 6～10 | 982.5 | 1004.8 | 995.7 | 09 | 13.0 | 7.5 | 09 | 3.0 | 08 | 1.0 | 09* | 3 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | |
| 第3半旬 | 11～15 | 993.9 | 1016.6 | 1012.3 | 11 | 0.0 | 0.0 | 13* | 0.0 | 13* | 0.0 | 13* | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| 第4半旬 | 16～20 | 986.0 | 1008.1 | 996.3 | 17 | 52.0 | 32.0 | 16 | 6.5 | 16 | 2.0 | 16 | 4 | 4 | 3 | 2 | 1 | 0 | 0 | 0 | |
| 第5半旬 | 21～25 | 982.8 | 1004.9 | 998.3 | 25 | 12.5 | 4.5 | 21 | 2.5 | 21 | 0.5 | 25* | 5 | 5 | 5 | 0 | 0 | 0 | 0 | 0 | |
| 第6半旬 | 26～31 | 983.5 | 1005.9 | 996.7 | 29 | 31.5 | 17.0 | 29 | 7.0 | 29 | 1.5 | 29 | 5 | 4 | 4 | 2 | 0 | 0 | 0 | 0 | |
| 第1半旬 | 1～ 5 | 987.1 | 1009.2 | 988.8 | 04 | 13.0 | 13.0 | 04 | 2.5 | 04 | 1.0 | 04 | 3 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | |
| 第2半旬 | 6～10 | 990.6 | 1012.7 | 1001.8 | 06 | -- | -- | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||
| 第3半旬 | 11～15 | 989.3 | 1011.2 | 1007.1 | 14 | 4.0 | 4.0 | 12 | 1.0 | 12 | 1.0 | 12 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | |
| 第4半旬 | 16～20 | 984.0 | 1006.0 | 999.4 | 20 | 8.5 | 5.5 | 19 | 2.5 | 20 | 1.0 | 20* | 2 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | |
| 第5半旬 | 21～25 | 988.8 | 1010.8 | 1002.2 | 21 | 21.5 | 20.0 | 24 | 8.0 | 24 | 3.0 | 24 | 4 | 2 | 2 | 1 | 0 | 0 | 0 | 0 | |
| 第6半旬 | 26～30 | 988.9 | 1010.7 | 1005.6 | 28 | 0.0 | 0.0 | 30* | 0.0 | 30* | 0.0 | 30* | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| 第1半旬 | 1～ 5 | 990.6 | 1012.4 | 1003.3 | 05 | 7.0 | 3.5 | 02 | 3.0 | 02 | 2.5 | 02 | 3 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | |
| 第2半旬 | 6～10 | 988.0 | 1009.8 | 1003.0 | 06 | 1.5 | 1.5 | 06 | 1.0 | 06 | 0.5 | 06 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | |
| 第3半旬 | 11～15 | 993.3 | 1014.9 | 1009.3 | 11 | 0.0 | 0.0 | 11 | 0.0 | 11 | 0.0 | 11 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| 第4半旬 | 16～20 | 994.2 | 1015.7 | 1012.6 | 18 | -- | -- | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||
| 第5半旬 | 21～25 | 991.5 | 1012.9 | 1009.6 | 25 | -- | -- | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||
| 第6半旬 | 26～31 | 984.0 | 1005.2 | 1002.1 | 27 | 0.0 | 0.0 | 29* | 0.0 | 29* | 0.0 | 29* | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| 第1半旬 | 1～ 5 | 986.3 | 1007.5 | 1001.8 | 01 | 17.0 | 17.0 | 04 | 17.0 | 04 | 6.5 | 04 | 3 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | |
| 第2半旬 | 6～10 | 983.6 | 1004.9 | 999.3 | 10 | 85.0 | 58.0 | 10 | 11.5 | 10 | 3.5 | 09 | 3 | 2 | 2 | 2 | 1 | 1 | 0 | 0 | |
| 第3半旬 | 11～15 | 993.3 | 1015.4 | 1007.4 | 11 | 0.5 | 0.5 | 11 | 0.5 | 11 | 0.5 | 11 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | |
| 第4半旬 | 16～20 | 994.5 | 1016.5 | 1009.9 | 18 | 19.0 | 18.0 | 18 | 5.0 | 18 | 1.0 | 18 | 3 | 2 | 2 | 1 | 0 | 0 | 0 | 0 | |
| 第5半旬 | 21～25 | 989.8 | 1011.4 | 1004.7 | 25 | 8.0 | 5.0 | 25 | 2.0 | 25 | 1.0 | 25 | 3 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | |
| 第6半旬 | 26～31 | 987.4 | 1009.0 | 1005.1 | 28 | 9.0 | 8.0 | 31 | 4.0 | 31 | 4.0 | 31 | 4 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | |
| 第1半旬 | 1～ 5 | 994.1 | 1016.2 | 1010.0 | 02 | 18.0 | 16.0 | 04 | 15.5 | 04 | 7.0 | 04 | 4 | 3 | 3 | 1 | 0 | 0 | 0 | 0 | |
| 第2半旬 | 6～10 | 994.0 | 1016.0 | 1009.6 | 09 | 0.0 | 0.0 | 09 | 0.0 | 09 | 0.0 | 09 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| 第3半旬 | 11～15 | 992.5 | 1014.7 | 1002.7 | 12 | 32.0 | 23.5 | 13 | 14.5 | 13 | 9.0 | 13 | 3 | 2 | 2 | 1 | 0 | 0 | 0 | 0 | |
| 第4半旬 | 16～20 | 994.1 | 1016.3 | 1008.4 | 18 | 0.0 | 0.0 | 20* | 0.0 | 20* | 0.0 | 20* | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| 第5半旬 | 21～25 | 994.0 | 1016.1 | 1005.2 | 22 | 19.0 | 8.0 | 24 | 5.5 | 24 | 1.5 | 24* | 4 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | |
| 第6半旬 | 26～30 | 994.9 | 1017.0 | 1001.6 | 30 | 38.0 | 32.0 | 30 | 8.0 | 30 | 2.5 | 30 | 2 | 2 | 2 | 1 | 1 | 0 | 0 | 0 | |
| 第1半旬 | 1～ 5 | 992.3 | 1014.4 | 1004.9 | 02 | 9.0 | 5.0 | 05 | 1.5 | 05* | 0.5 | 05* | 4 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | |
| 第2半旬 | 6～10 | 999.1 | 1021.8 | 1006.1 | 10 | 0.5 | 0.5 | 10 | 0.5 | 10 | 0.5 | 10 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | |
| 第3半旬 | 11～15 | 998.3 | 1020.9 | 1005.8 | 11 | 29.5 | 26.0 | 11 | 10.5 | 11 | 3.5 | 11 | 3 | 2 | 2 | 1 | 0 | 0 | 0 | 0 | |
| 第4半旬 | 16～20 | 991.9 | 1014.9 | 1003.5 | 20 | 53.5 | 26.5 | 17 | 6.0 | 17 | 2.5 | 17 | 5 | 5 | 5 | 2 | 0 | 0 | 0 | 0 | |
| 第5半旬 | 21～25 | 996.4 | 1019.5 | 1008.1 | 21 | 16.5 | 7.5 | 21 | 2.5 | 23 | 1.0 | 23 | 3 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | |
| 第6半旬 | 26～31 | 996.7 | 1019.7 | 1009.0 | 28 | 25.5 | 20.0 | 28 | 4.0 | 28 | 2.0 | 28 | 4 | 4 | 4 | 1 | 0 | 0 | 0 | 0 | |
| 第1半旬 | 1～ 5 | 996.0 | 1019.0 | 1013.1 | 04 | 12.5 | 11.0 | 02 | 2.0 | 02 | 1.0 | 02 | 3 | 3 | 2 | 1 | 0 | 0 | 0 | 0 | |
| 第2半旬 | 6～10 | 992.3 | 1015.1 | 993.4 | 10 | 55.0 | 40.5 | 09 | 13.5 | 09 | 5.5 | 09 | 3 | 3 | 2 | 2 | 1 | 0 | 0 | 0 | |
| 第3半旬 | 11～15 | 985.6 | 1008.4 | 993.3 | 11 | 21.5 | 7.5 | 15 | 3.0 | 15* | 1.5 | 15* | 5 | 5 | 5 | 0 | 0 | 0 | 0 | 0 | |
| 第4半旬 | 16～20 | 993.8 | 1016.9 | 1004.6 | 19 | 16.5 | 14.5 | 19 | 3.5 | 19 | 2.0 | 19 | 5 | 4 | 2 | 1 | 0 | 0 | 0 | 0 | |
| 第5半旬 | 21～25 | 983.2 | 1006.3 | 993.3 | 22 | 55.5 | 24.0 | 25 | 5.5 | 22 | 2.0 | 22 | 5 | 5 | 4 | 3 | 0 | 0 | 0 | 0 | |
| 第6半旬 | 26～30 | 995.7 | 1019.2 | 1002.1 | 30 | 50.5 | 25.0 | 27 | 5.0 | 27* | 1.5 | 27* | 5 | 4 | 2 | 2 | 0 | 0 | 0 | 0 | |
| 第1半旬 | 1～ 5 | 985.6 | 1009.0 | 987.8 | 01 | 55.0 | 15.5 | 01 | 4.0 | 01 | 1.5 | 03* | 5 | 5 | 5 | 3 | 0 | 0 | 0 | 0 | |
| 第2半旬 | 6～10 | 1004.8 | 1028.6 | 1022.6 | 10 | 0.0 | 0.0 | 07 | 0.0 | 07 | 0.0 | 07 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| 第3半旬 | 11～15 | 989.1 | 1012.5 | 1000.4 | 13* | 39.0 | 20.0 | 13 | 3.0 | 13 | 1.0 | 13* | 5 | 5 | 5 | 2 | 0 | 0 | 0 | 0 | |
| 第4半旬 | 16～20 | 985.1 | 1008.8 | 996.8 | 17 | 35.5 | 14.5 | 18 | 3.0 | 19 | 1.0 | 19* | 5 | 4 | 4 | 1 | 0 | 0 | 0 | 0 | |
| 第5半旬 | 21～25 | 988.8 | 1012.8 | 1004.7 | 21 | 53.0 | 16.5 | 23 | 3.5 | 21 | 1.5 | 21 | 5 | 5 | 5 | 3 | 0 | 0 | 0 | 0 | |
| 第6半旬 | 26～31 | 986.7 | 1010.9 | 1005.3 | 31* | 50.0 | 11.5 | 31 | 4.0 | 26 | 1.0 | 30* | 6 | 6 | 6 | 2 | 0 | 0 | 0 | 0 | |