半旬ごとの値
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水戸（茨城県) 2011年（半旬ごとの値） 詳細（気温・蒸気圧・湿度）
| 月 | 半旬 | 日～日 | 気温(℃) | 蒸気圧 (hPa) | 湿度(％) | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 日平均 | 最高気温 | 最低気温 | 各階級の日数（平均） | 各階級の日数（最低） | 各階級の日数（最高） | ||||||||||||||||||||
| 平均 | 平均 | 最高 | 最低 | 平均 | 最低 | 最高 | ＜0℃ | ≧25℃ | ＜0℃ | ≧25℃ | ＜0℃ | ≧25℃ | ≧30℃ | ≧35℃ | 平均 | 平均 | 最小 | ||||||||
| 値 | 日 | 値 | 日 | 値 | 日 | 値 | 日 | 値 | 日 | ||||||||||||||||
| 第1半旬 | 1～ 5 | 3.6 | 10.1 | 11.3 | 05 | 9.3 | 01 | -1.7 | -3.4 | 05* | 0.7 | 01 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 4.8 | 63 | 22 | 05 | |
| 第2半旬 | 6～10 | 2.1 | 8.7 | 12.9 | 09 | 5.9 | 10 | -4.0 | -5.8 | 08 | -1.9 | 06 | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 3.5 | 50 | 20 | 06 | |
| 第3半旬 | 11～15 | 1.3 | 7.3 | 10.3 | 12 | 6.0 | 11 | -4.1 | -5.7 | 11 | -1.6 | 12 | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 3.6 | 54 | 26 | 13* | |
| 第4半旬 | 16～20 | 1.6 | 8.2 | 10.5 | 19 | 3.9 | 16 | -3.9 | -4.3 | 18 | -3.1 | 16 | 1 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 3.8 | 58 | 24 | 20 | |
| 第5半旬 | 21～25 | 2.5 | 8.2 | 10.1 | 22 | 7.1 | 24 | -2.3 | -4.5 | 23 | 0.0 | 24 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 4.3 | 60 | 26 | 21 | |
| 第6半旬 | 26～31 | 0.6 | 6.6 | 8.7 | 26 | 4.5 | 29 | -4.9 | -7.2 | 31 | -2.9 | 29 | 1 | 0 | 6 | 0 | 0 | 0 | 0 | 0 | 3.5 | 56 | 22 | 31 | |
| 第1半旬 | 1～ 5 | 3.7 | 11.5 | 13.7 | 04 | 8.0 | 02 | -3.2 | -6.1 | 01 | -1.1 | 04 | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 4.6 | 60 | 25 | 01 | |
| 第2半旬 | 6～10 | 3.9 | 9.2 | 12.5 | 07 | 6.0 | 08 | -0.6 | -1.7 | 06 | 0.1 | 09* | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 5.3 | 67 | 27 | 10 | |
| 第3半旬 | 11～15 | 1.7 | 6.0 | 9.0 | 15 | 2.2 | 11 | -1.5 | -2.9 | 14 | -0.4 | 12* | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 5.3 | 78 | 30 | 13 | |
| 第4半旬 | 16～20 | 6.0 | 11.9 | 15.0 | 18 | 9.3 | 19 | 0.1 | -4.0 | 16 | 3.1 | 18 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 6.4 | 67 | 33 | 19 | |
| 第5半旬 | 21～25 | 6.7 | 13.1 | 21.4 | 25 | 9.1 | 22 | 0.8 | -1.9 | 22 | 4.5 | 25 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 7.1 | 71 | 36 | 25 | |
| 第6半旬 | 26～28 | 5.0 | 10.5 | 16.4 | 27 | 6.9 | 28 | 0.6 | 0.0 | 27 | 1.3 | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.5 | 65 | 26 | 26 | |
| 第1半旬 | 1～ 5 | 3.2 | 8.2 | 10.6 | 05 | 6.0 | 04 | -1.8 | -4.3 | 05 | 2.4 | 01 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 4.7 | 60 | 23 | 03 | |
| 第2半旬 | 6～10 | 3.8 | 9.4 | 14.9 | 06 | 5.5 | 07 | -0.7 | -1.8 | 06 | 0.1 | 07 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 5.5 | 71 | 24 | 10 | |
| 第3半旬 | 11～15 | 7.2 | 14.1 | 20.1 | 14 | 10.0 | 12 | 0.6 | -2.9 | 12 | 6.5 | 15 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 6.1 | 60 | 19 | 13* | |
| 第4半旬 | 16～20 | 5.5 | 12.9 | 17.9 | 19 | 7.8 | 17 | -0.4 | -2.7 | 17 | 1.6 | 20 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 4.6 | 51 | 17 | 19 | |
| 第5半旬 | 21～25 | 5.6 | 9.3 | 11.7 | 25 | 8.4 | 23 | 2.2 | -1.8 | 25 | 5.8 | 21 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 6.5 | 71 | 28 | 24 | |
| 第6半旬 | 26～31 | 6.7 | 13.1 | 16.7 | 29 | 10.3 | 27 | 0.9 | -0.4 | 27 | 2.9 | 31 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 5.4 | 56 | 19 | 26 | |
| 第1半旬 | 1～ 5 | 7.5 | 14.4 | 18.4 | 02 | 9.9 | 03 | 1.2 | -2.0 | 05 | 2.8 | 03 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 5.4 | 53 | 18 | 04 | |
| 第2半旬 | 6～10 | 12.3 | 18.0 | 20.8 | 07 | 13.5 | 09 | 5.9 | 1.1 | 06 | 9.4 | 09 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.0 | 64 | 15 | 06 | |
| 第3半旬 | 11～15 | 12.4 | 20.2 | 23.8 | 15 | 14.4 | 12 | 4.3 | 1.4 | 13 | 6.9 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.9 | 57 | 14 | 13 | |
| 第4半旬 | 16～20 | 10.8 | 16.5 | 26.5 | 16 | 11.9 | 19 | 5.6 | 2.8 | 20 | 8.5 | 16 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 8.6 | 66 | 28 | 17* | |
| 第5半旬 | 21～25 | 12.3 | 17.4 | 20.0 | 25 | 12.0 | 21 | 8.0 | 5.1 | 25 | 11.2 | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11.1 | 77 | 31 | 25 | |
| 第6半旬 | 26～30 | 14.9 | 20.8 | 25.5 | 27 | 17.0 | 29 | 8.0 | 4.1 | 26 | 10.7 | 27 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 11.5 | 68 | 37 | 30 | |
| 第1半旬 | 1～ 5 | 14.8 | 19.7 | 23.3 | 02 | 15.0 | 05 | 10.7 | 8.2 | 03 | 12.2 | 01 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11.4 | 69 | 24 | 02 | |
| 第2半旬 | 6～10 | 16.5 | 22.3 | 27.7 | 08 | 16.0 | 06 | 11.3 | 8.7 | 06 | 13.7 | 10 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 13.7 ] | 76 ] | 36 ] | 09 | |
| 第3半旬 | 11～15 | 16.8 | 21.3 | 26.1 | 15 | 16.0 | 11 | 12.1 | 9.3 | 15 | 14.2 | 13 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 13.9 | 76 | 13 | 15 | |
| 第4半旬 | 16～20 | 18.7 | 24.7 | 29.0 | 20 | 20.9 | 17 | 12.4 | 10.8 | 19 | 14.1 | 17 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 13.8 | 68 | 16 | 19 | |
| 第5半旬 | 21～25 | 16.7 | 22.4 | 29.2 | 21 | 16.7 | 23 | 12.1 | 9.8 | 25 | 15.0 | 21 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 14.7 | 79 | 37 | 21 | |
| 第6半旬 | 26～31 | 16.5 | 19.2 | 21.6 | 27 | 16.5 | 31 | 14.4 | 10.7 | 31 | 16.6 | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 15.9 | 84 | 53 | 31* | |
| 第1半旬 | 1～ 5 | 17.5 | 22.3 | 27.0 | 05 | 15.3 | 01 | 13.7 | 10.0 | 01 | 16.4 | 05 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 16.3 | 81 | 42 | 04 | |
| 第2半旬 | 6～10 | 20.1 | 24.9 | 27.7 | 06 | 21.1 | 08 | 15.6 | 13.5 | 09 | 16.8 | 10 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 18.7 | 80 | 38 | 06 | |
| 第3半旬 | 11～15 | 20.5 | 24.6 | 27.5 | 12 | 21.8 | 15 | 17.9 | 15.8 | 15 | 19.5 | 11 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 19.3 | 81 | 42 | 12 | |
| 第4半旬 | 16～20 | 19.8 | 23.4 | 28.0 | 20 | 19.9 | 17 | 16.9 | 14.0 | 16 | 18.8 | 20 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 20.1 | 87 | 61 | 19 | |
| 第5半旬 | 21～25 | 25.1 | 30.5 | 32.9 | 24 | 23.8 | 25 | 21.0 | 18.6 | 25 | 22.9 | 24* | 0 | 3 | 0 | 0 | 0 | 4 | 4 | 0 | 24.0 | 76 | 39 | 22 | |
| 第6半旬 | 26～30 | 23.6 | 27.3 | 33.5 | 30 | 20.3 | 26 | 20.9 | 18.6 | 26 | 23.0 | 30 | 0 | 3 | 0 | 0 | 0 | 3 | 2 | 0 | 24.1 | 84 | 49 | 30 | |
| 第1半旬 | 1～ 5 | 25.9 | 30.3 | 34.2 | 04 | 27.7 | 02 | 22.5 | 21.1 | 05 | 23.0 | 04 | 0 | 4 | 0 | 0 | 0 | 5 | 2 | 0 | 27.2 | 83 | 52 | 04 | |
| 第2半旬 | 6～10 | 26.4 | 31.3 | 35.4 | 10 | 27.7 | 07 | 23.0 | 21.1 | 06 | 24.1 | 08 | 0 | 3 | 0 | 0 | 0 | 5 | 3 | 1 | 26.4 | 78 | 40 | 10 | |
| 第3半旬 | 11～15 | 28.2 | 33.4 | 34.8 | 14 | 31.9 | 11 | 23.7 | 23.2 | 11 | 24.5 | 15 | 0 | 5 | 0 | 0 | 0 | 5 | 5 | 0 | 26.8 | 71 | 42 | 14 | |
| 第4半旬 | 16～20 | 27.6 | 32.3 | 36.4 | 18 | 27.3 | 20 | 23.7 | 21.5 | 20 | 26.2 | 18 | 0 | 4 | 0 | 1 | 0 | 5 | 3 | 2 | 27.7 | 77 | 39 | 17 | |
| 第5半旬 | 21～25 | 21.8 | 25.9 | 30.6 | 25 | 22.6 | 21 | 17.8 | 15.6 | 23 | 20.8 | 25 | 0 | 1 | 0 | 0 | 0 | 3 | 1 | 0 | 19.8 | 75 | 49 | 22 | |
| 第6半旬 | 26～31 | 24.4 | 28.6 | 31.6 | 27 | 25.6 | 31 | 22.0 | 20.8 | 31 | 22.9 | 27 | 0 | 2 | 0 | 0 | 0 | 6 | 2 | 0 | 26.1 | 86 | 54 | 26 | |
| 第1半旬 | 1～ 5 | 24.5 | 28.4 | 30.5 | 05 | 25.8 | 01 | 21.6 | 19.8 | 02 | 23.6 | 05 | 0 | 2 | 0 | 0 | 0 | 5 | 2 | 0 | 25.5 | 83 | 61 | 02 | |
| 第2半旬 | 6～10 | 27.7 | 33.1 | 36.5 | 10 | 31.3 | 08 | 24.2 | 23.5 | 09 | 24.9 | 06 | 0 | 5 | 0 | 0 | 0 | 5 | 5 | 1 | 29.7 | 81 | 43 | 10 | |
| 第3半旬 | 11～15 | 28.3 | 33.3 | 35.4 | 11 | 31.2 | 13 | 24.6 | 24.1 | 13* | 25.3 | 14 | 0 | 5 | 0 | 2 | 0 | 5 | 5 | 1 | 29.2 | 77 | 47 | 12 | |
| 第4半旬 | 16～20 | 26.6 | 31.2 | 36.4 | 18 | 24.6 | 20 | 23.3 | 20.6 | 19 | 25.3 | 18 | 0 | 3 | 0 | 2 | 0 | 4 | 3 | 1 | 27.4 | 80 | 48 | 16 | |
| 第5半旬 | 21～25 | 23.2 | 25.8 | 29.9 | 24 | 21.4 | 21 | 20.8 | 18.3 | 21 | 24.8 | 25 | 0 | 2 | 0 | 0 | 0 | 3 | 0 | 0 | 25.6 | 90 | 68 | 24 | |
| 第6半旬 | 26～31 | 23.8 | 27.8 | 29.0 | 31 | 26.3 | 27 | 20.3 | 18.7 | 30 | 21.5 | 31* | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | 24.5 | 84 | 55 | 30 | |
| 第1半旬 | 1～ 5 | 26.2 | 29.5 | 30.2 | 03 | 28.5 | 05 | 24.1 | 22.7 | 05 | 24.9 | 03* | 0 | 4 | 0 | 0 | 0 | 5 | 2 | 0 | 28.9 | 85 | 63 | 05 | |
| 第2半旬 | 6～10 | 24.3 | 29.3 | 32.6 | 10 | 27.8 | 07 | 19.3 | 17.3 | 06 | 22.6 | 10 | 0 | 2 | 0 | 0 | 0 | 5 | 1 | 0 | 24.0 | 80 | 50 | 08 | |
| 第3半旬 | 11～15 | 26.3 | 31.0 | 31.9 | 13 | 29.2 | 11 | 22.8 | 21.9 | 14 | 23.7 | 11 | 0 | 5 | 0 | 0 | 0 | 5 | 4 | 0 | 26.7 | 79 | 49 | 15 | |
| 第4半旬 | 16～20 | 24.6 | 28.9 | 32.9 | 18 | 20.3 | 20 | 21.2 | 17.6 | 20 | 24.9 | 17 | 0 | 3 | 0 | 0 | 0 | 4 | 3 | 0 | 24.7 | 80 | 48 | 16 | |
| 第5半旬 | 21～25 | 18.9 | 22.9 | 25.3 | 21 | 20.3 | 23 | 15.5 | 12.7 | 24 | 17.9 | 22 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 17.4 | 80 | 38 | 24 | |
| 第6半旬 | 26～30 | 18.6 | 23.8 | 28.3 | 30 | 20.5 | 26 | 13.8 | 12.3 | 28 | 16.3 | 30 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 16.6 | 78 | 50 | 30 | |
| 第1半旬 | 1～ 5 | 16.0 | 20.0 | 22.1 | 01 | 17.8 | 05 | 12.0 | 8.0 | 04 | 16.0 | 01 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12.2 | 68 | 25 | 03 | |
| 第2半旬 | 6～10 | 17.7 | 23.1 | 24.7 | 07 | 21.2 | 09 | 13.2 | 8.9 | 08 | 16.2 | 06 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 14.8 | 74 | 25 | 07 | |
| 第3半旬 | 11～15 | 18.6 | 23.1 | 23.8 | 15* | 21.5 | 13 | 14.9 | 13.0 | 14 | 20.2 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 17.9 | 83 | 49 | 12 | |
| 第4半旬 | 16～20 | 17.0 | 20.6 | 24.1 | 17* | 15.6 | 19 | 12.8 | 9.0 | 19 | 16.5 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 15.0 | 76 | 48 | 17 | |
| 第5半旬 | 21～25 | 19.1 | 22.4 | 24.9 | 25 | 19.5 | 24 | 16.0 | 12.7 | 21 | 18.5 | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 18.6 | 84 | 56 | 25 | |
| 第6半旬 | 26～31 | 13.5 | 19.4 | 22.6 | 31 | 17.7 | 27 | 8.3 | 5.2 | 27 | 11.4 | 31* | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11.2 | 73 | 33 | 26 | |
| 第1半旬 | 1～ 5 | 14.8 | 20.5 | 21.5 | 04 | 19.4 | 01 | 9.7 | 6.8 | 02 | 12.4 | 03 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13.5 | 81 | 39 | 01 | |
| 第2半旬 | 6～10 | 13.4 | 17.2 | 20.6 | 07 | 14.9 | 10 | 10.5 | 7.1 | 10 | 15.1 | 06 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12.5 | 80 | 45 | 09 | |
| 第3半旬 | 11～15 | 12.7 | 16.8 | 20.1 | 13 | 12.1 | 11 | 8.9 | 6.8 | 11 | 10.8 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12.2 | 83 | 47 | 15 | |
| 第4半旬 | 16～20 | 11.0 | 16.4 | 20.3 | 19 | 13.0 | 18 | 6.1 | 4.0 | 16 | 9.2 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10.6 | 78 | 30 | 16 | |
| 第5半旬 | 21～25 | 8.7 | 15.0 | 17.4 | 24 | 13.0 | 22 | 3.2 | 0.6 | 22 | 6.4 | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.5 | 67 | 23 | 25 | |
| 第6半旬 | 26～30 | 9.1 | 15.6 | 17.9 | 29 | 13.1 | 26 | 4.2 | -0.6 | 26 | 7.8 | 29 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 8.8 | 76 | 33 | 26 | |
| 第1半旬 | 1～ 5 | 8.5 | 12.2 | 16.2 | 03 | 7.3 | 02 | 4.5 | 2.2 | 05 | 6.3 | 03 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.9 | 70 | 31 | 04 | |
| 第2半旬 | 6～10 | 5.1 | 9.4 | 11.8 | 07 | 6.3 | 09 | 1.2 | -3.0 | 10 | 4.3 | 08 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 6.7 | 78 | 27 | 10 | |
| 第3半旬 | 11～15 | 6.2 | 12.7 | 15.1 | 15 | 9.0 | 14 | 0.0 | -1.2 | 11 | 0.8 | 13 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 6.3 | 69 | 30 | 11 | |
| 第4半旬 | 16～20 | 2.8 | 8.7 | 10.1 | 18 | 7.9 | 17 | -2.3 | -3.8 | 18 | -0.8 | 16 | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 4.8 | 66 | 29 | 17 | |
| 第5半旬 | 21～25 | 2.5 | 8.0 | 8.7 | 25 | 7.3 | 24 | -2.4 | -3.5 | 24 | -1.1 | 22 | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 4.6 | 64 | 19 | 25 | |
| 第6半旬 | 26～31 | 1.8 | 8.2 | 9.4 | 31 | 6.2 | 26 | -4.0 | -5.9 | 27 | -1.8 | 30 | 0 | 0 | 6 | 0 | 0 | 0 | 0 | 0 | 3.7 | 56 | 23 | 30 | |