半旬ごとの値
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南鳥島（東京都) 1991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 | 23.2 | 25.7 | 26.9 | 03 | 24.6 | 01 | 21.0 | 19.6 | 05 | 22.5 | 04 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 19.3 | 68 | 49 | 01 | |
| 第2半旬 | 6～10 | 22.8 | 25.1 | 27.2 | 09 | 23.5 | 10 | 20.8 | 19.9 | 08 | 21.8 | 09 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 17.6 | 63 | 45 | 07 | |
| 第3半旬 | 11～15 | 21.6 | 23.9 | 25.9 | 13 | 22.7 | 15 | 19.0 | 17.1 | 12 | 20.9 | 13 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 14.5 | 56 | 40 | 13 | |
| 第4半旬 | 16～20 | 20.8 | 23.6 | 26.7 | 19 | 21.3 | 20 | 19.0 | 18.5 | 17 | 19.8 | 19 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 14.0 | 57 | 39 | 17 | |
| 第5半旬 | 21～25 | 21.0 | 23.3 | 25.9 | 23 | 21.2 | 25 | 18.8 | 17.0 | 24 | 20.4 | 23 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 15.5 | 61 | 43 | 24 | |
| 第6半旬 | 26～31 | 20.7 | 23.5 | 24.9 | 27 | 22.5 | 30 | 18.6 | 17.3 | 26 | 19.5 | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 14.5 | 60 | 40 | 31 | |
| 第1半旬 | 1～ 5 | 21.2 | 24.0 | 25.2 | 05 | 22.5 | 04 | 19.1 | 18.5 | 02 | 20.0 | 05 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 15.3 | 60 | 45 | 04 | |
| 第2半旬 | 6～10 | 19.8 | 22.3 | 24.2 | 08 | 20.2 | 10 | 17.8 | 17.0 | 10 | 19.2 | 08 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13.0 | 56 | 42 | 10 | |
| 第3半旬 | 11～15 | 19.7 | 22.6 | 24.3 | 12 | 20.6 | 15 | 17.4 | 15.2 | 11 | 18.6 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 14.8 | 64 | 46 | 11 | |
| 第4半旬 | 16～20 | 21.3 | 24.0 | 26.2 | 17 | 22.2 | 19 | 18.7 | 17.3 | 19 | 19.4 | 17 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 17.9 | 70 | 47 | 19 | |
| 第5半旬 | 21～25 | 21.1 | 24.3 | 25.1 | 23 | 22.4 | 25 | 18.8 | 17.2 | 22 | 19.7 | 25* | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 18.4 | 74 | 52 | 23 | |
| 第6半旬 | 26～28 | 19.4 | 21.6 | 22.9 | 26 | 19.5 | 27 | 17.5 | 17.1 | 27* | 18.3 | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 14.9 | 67 | 50 | 28 | |
| 第1半旬 | 1～ 5 | 21.3 | 24.3 | 25.4 | 03 | 23.4 | 04 | 19.1 | 18.5 | 05* | 19.7 | 02 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 18.0 | 71 | 49 | 01 | |
| 第2半旬 | 6～10 | 21.7 | 25.1 | 26.5 | 10 | 24.4 | 08 | 18.6 | 17.0 | 07 | 20.4 | 09 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 20.0 | 77 | 61 | 09* | |
| 第3半旬 | 11～15 | 23.1 | 26.2 | 26.8 | 12 | 25.0 | 11 | 21.1 | 20.6 | 15* | 21.9 | 13 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | 22.1 | 79 | 58 | 12 | |
| 第4半旬 | 16～20 | 22.2 | 24.9 | 27.5 | 17 | 23.0 | 16 | 20.4 | 20.1 | 18 | 20.6 | 17 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 21.8 | 81 | 68 | 16 | |
| 第5半旬 | 21～25 | 22.3 | 24.7 | 26.4 | 23 | 23.1 | 22 | 21.1 | 20.5 | 22 | 21.6 | 23 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 23.0 | 85 | 63 | 23 | |
| 第6半旬 | 26～31 | 22.6 | 25.1 | 26.8 | 31 | 24.3 | 26 | 21.1 | 20.8 | 29* | 21.8 | 31 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 20.8 | 76 | 54 | 31 | |
| 第1半旬 | 1～ 5 | 24.1 | 27.1 | 28.0 | 04 | 26.3 | 01 | 22.0 | 20.9 | 01 | 22.7 | 03 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | 24.9 | 84 | 65 | 05 | |
| 第2半旬 | 6～10 | 24.4 | 28.0 | 29.6 | 10 | 26.9 | 07* | 21.8 | 21.3 | 09* | 22.5 | 10 | 0 | 1 | 0 | 0 | 0 | 5 | 0 | 0 | 24.3 | 79 | 59 | 10 | |
| 第3半旬 | 11～15 | 25.9 | 30.2 | 30.7 | 14 | 29.6 | 15 | 23.7 | 23.4 | 11 | 23.9 | 15 | 0 | 5 | 0 | 0 | 0 | 5 | 4 | 0 | 24.8 | 75 | 58 | 14* | |
| 第4半旬 | 16～20 | 25.8 | 29.3 | 30.5 | 16 | 27.1 | 18 | 23.7 | 23.4 | 18 | 24.0 | 19 | 0 | 4 | 0 | 0 | 0 | 5 | 2 | 0 | 24.0 | 73 | 53 | 19 | |
| 第5半旬 | 21～25 | 25.2 | 27.7 | 29.9 | 23 | 24.1 | 24 | 23.4 | 21.7 | 24 | 24.8 | 21 | 0 | 3 | 0 | 0 | 0 | 4 | 0 | 0 | 25.5 | 80 | 57 | 23 | |
| 第6半旬 | 26～30 | 25.8 | 29.0 | 29.6 | 28 | 28.7 | 30* | 23.8 | 23.3 | 29 | 24.6 | 30 | 0 | 5 | 0 | 0 | 0 | 5 | 0 | 0 | 25.4 | 77 | 62 | 26 | |
| 第1半旬 | 1～ 5 | 26.1 | 29.8 | 30.3 | 03 | 29.2 | 01 | 23.7 | 22.0 | 05 | 24.9 | 01 | 0 | 5 | 0 | 0 | 0 | 5 | 2 | 0 | 27.1 | 81 | 63 | 02 | |
| 第2半旬 | 6～10 | 24.9 | 27.4 | 30.3 | 09 | 25.0 | 07 | 22.9 | 21.9 | 07 | 24.5 | 10 | 0 | 2 | 0 | 0 | 0 | 5 | 1 | 0 | 26.9 | 85 | 71 | 09 | |
| 第3半旬 | 11～15 | 26.5 | 29.6 | 30.4 | 14 | 29.1 | 12 | 24.2 | 23.5 | 15 | 24.8 | 14 | 0 | 5 | 0 | 0 | 0 | 5 | 1 | 0 | 28.2 | 81 | 64 | 15 | |
| 第4半旬 | 16～20 | 26.8 | 29.9 | 30.2 | 19* | 29.3 | 16 | 24.2 | 23.0 | 16 | 24.8 | 17 | 0 | 5 | 0 | 0 | 0 | 5 | 3 | 0 | 26.2 | 75 | 59 | 17 | |
| 第5半旬 | 21～25 | 27.3 | 30.6 | 31.1 | 22 | 29.5 | 21 | 24.3 | 22.8 | 21 | 25.6 | 22 | 0 | 5 | 0 | 2 | 0 | 5 | 4 | 0 | 27.9 | 77 | 56 | 21 | |
| 第6半旬 | 26～31 | 27.9 | 31.1 | 31.7 | 26 | 30.3 | 27 | 25.4 | 24.5 | 29 | 25.9 | 30 | 0 | 6 | 0 | 5 | 0 | 6 | 6 | 0 | 28.4 | 76 | 58 | 28 | |
| 第1半旬 | 1～ 5 | 28.2 | 31.5 | 32.1 | 02 | 31.1 | 04 | 25.9 | 25.5 | 05 | 26.4 | 02 | 0 | 5 | 0 | 5 | 0 | 5 | 5 | 0 | 27.3 | 72 | 57 | 05* | |
| 第2半旬 | 6～10 | 28.6 | 32.7 | 33.4 | 09 | 31.7 | 06 | 25.9 | 25.2 | 07 | 26.6 | 09 | 0 | 5 | 0 | 5 | 0 | 5 | 5 | 0 | 27.5 | 71 | 53 | 06 | |
| 第3半旬 | 11～15 | 28.4 | 32.2 | 33.3 | 11 | 30.8 | 13 | 26.2 | 25.7 | 12 | 26.6 | 14 | 0 | 5 | 0 | 5 | 0 | 5 | 5 | 0 | 27.4 | 71 | 56 | 15* | |
| 第4半旬 | 16～20 | 28.5 | 32.5 | 33.1 | 19 | 32.0 | 17 | 25.6 | 24.8 | 17 | 26.1 | 20* | 0 | 5 | 0 | 4 | 0 | 5 | 5 | 0 | 28.3 | 73 | 56 | 18* | |
| 第5半旬 | 21～25 | 29.3 | 32.2 | 32.7 | 24 | 31.4 | 21 | 26.8 | 26.0 | 21 | 28.0 | 25 | 0 | 5 | 0 | 5 | 0 | 5 | 5 | 0 | 32.1 | 79 | 64 | 24 | |
| 第6半旬 | 26～30 | 28.9 | 32.3 | 33.8 | 30 | 31.1 | 28 | 26.4 | 25.5 | 30 | 27.4 | 26 | 0 | 5 | 0 | 5 | 0 | 5 | 5 | 0 | 29.6 | 75 | 58 | 28 | |
| 第1半旬 | 1～ 5 | 29.1 | 32.9 | 35.0 | 05 | 31.5 | 02 | 25.8 | 24.4 | 03 | 28.1 | 05 | 0 | 5 | 0 | 3 | 0 | 5 | 5 | 1 | 28.3 | 70 | 52 | 05 | |
| 第2半旬 | 6～10 | 29.9 | 33.7 | 34.8 | 08 | 32.9 | 10 | 27.5 | 26.0 | 10 | 28.1 | 07* | 0 | 5 | 0 | 5 | 0 | 5 | 5 | 0 | 29.3 | 70 | 51 | 10 | |
| 第3半旬 | 11～15 | 29.8 | 33.0 | 33.2 | 12 | 32.9 | 11 | 27.1 | 25.4 | 11 | 28.1 | 15 | 0 | 5 | 0 | 5 | 0 | 5 | 5 | 0 | 28.3 | 68 | 47 | 11 | |
| 第4半旬 | 16～20 | 29.5 | 33.7 | 35.5 | 18 | 30.8 | 19 | 25.8 | 24.4 | 19 | 27.5 | 16 | 0 | 5 | 0 | 4 | 0 | 5 | 5 | 2 | 30.5 | 74 | 55 | 18 | |
| 第5半旬 | 21～25 | 29.2 | 33.0 | 33.5 | 23 | 32.1 | 24 | 26.2 | 25.5 | 25 | 27.4 | 22 | 0 | 5 | 0 | 5 | 0 | 5 | 5 | 0 | 30.0 | 74 | 58 | 22 | |
| 第6半旬 | 26～31 | 29.5 | 32.3 | 32.8 | 30 | 31.9 | 31 | 26.9 | 24.9 | 26 | 28.2 | 29 | 0 | 6 | 0 | 5 | 0 | 6 | 6 | 0 | 30.1 | 73 | 61 | 27 | |
| 第1半旬 | 1～ 5 | 28.8 | 32.1 | 33.0 | 02 | 31.1 | 03 | 25.7 | 24.0 | 03 | 27.2 | 05 | 0 | 5 | 0 | 4 | 0 | 5 | 5 | 0 | 31.8 | 80 | 64 | 02 | |
| 第2半旬 | 6～10 | 29.2 | 32.0 | 32.6 | 09 | 31.6 | 07 | 26.4 | 25.3 | 08 | 27.6 | 06 | 0 | 5 | 0 | 5 | 0 | 5 | 5 | 0 | 29.7 | 74 | 59 | 10 | |
| 第3半旬 | 11～15 | 28.4 | 31.0 | 32.4 | 12* | 29.1 | 15 | 25.6 | 24.7 | 13 | 27.2 | 14 | 0 | 5 | 0 | 4 | 0 | 5 | 4 | 0 | 31.6 | 82 | 66 | 11 | |
| 第4半旬 | 16～20 | 28.0 | 30.6 | 32.0 | 19 | 28.3 | 20 | 25.7 | 24.1 | 20 | 26.6 | 18 | 0 | 5 | 0 | 4 | 0 | 5 | 4 | 0 | 31.2 | 82 | 71 | 18 | |
| 第5半旬 | 21～25 | 27.2 | 29.8 | 31.5 | 25 | 26.9 | 21 | 24.6 | 24.3 | 22 | 25.0 | 24 | 0 | 5 | 0 | 1 | 0 | 5 | 3 | 0 | 30.3 | 85 | 70 | 25* | |
| 第6半旬 | 26～31 | 28.0 | 30.7 | 31.4 | 28 | 29.6 | 30 | 25.7 | 24.8 | 26 | 26.5 | 30 | 0 | 6 | 0 | 5 | 0 | 6 | 5 | 0 | 28.1 | 75 | 57 | 30 | |
| 第1半旬 | 1～ 5 | 28.8 | 32.0 | 32.6 | 02 | 31.5 | 01 | 26.3 | 25.2 | 05 | 27.1 | 04 | 0 | 5 | 0 | 5 | 0 | 5 | 5 | 0 | 31.0 | 79 | 66 | 04 | |
| 第2半旬 | 6～10 | 28.8 | 31.1 | 31.8 | 09 | 30.5 | 06 | 26.9 | 26.1 | 07 | 27.6 | 09 | 0 | 5 | 0 | 5 | 0 | 5 | 5 | 0 | 30.7 | 78 | 65 | 10 | |
| 第3半旬 | 11～15 | 29.0 | 32.3 | 33.9 | 12 | 30.8 | 15 | 26.7 | 25.5 | 15 | 27.5 | 13 | 0 | 5 | 0 | 5 | 0 | 5 | 5 | 0 | 30.6 | 77 | 59 | 11 | |
| 第4半旬 | 16～20 | 28.7 | 32.0 | 33.2 | 16 | 31.1 | 19 | 26.7 | 25.9 | 17 | 27.5 | 20 | 0 | 5 | 0 | 5 | 0 | 5 | 5 | 0 | 29.2 | 75 | 58 | 18 | |
| 第5半旬 | 21～25 | 28.6 | 32.5 | 32.9 | 25 | 31.8 | 24 | 26.5 | 25.8 | 21 | 27.1 | 25* | 0 | 5 | 0 | 5 | 0 | 5 | 5 | 0 | 29.7 | 76 | 59 | 24 | |
| 第6半旬 | 26～30 | 29.0 | 33.0 | 33.6 | 30* | 32.0 | 27 | 26.5 | 25.8 | 28* | 27.3 | 30 | 0 | 5 | 0 | 5 | 0 | 5 | 5 | 0 | 30.8 | 77 | 61 | 28* | |
| 第1半旬 | 1～ 5 | 28.8 | 31.9 | 33.2 | 02 | 31.1 | 03* | 26.7 | 25.9 | 03 | 27.2 | 05 | 0 | 5 | 0 | 5 | 0 | 5 | 5 | 0 | 30.5 | 77 | 59 | 02 | |
| 第2半旬 | 6～10 | 28.2 | 30.7 | 31.5 | 08 | 29.3 | 10 | 25.4 | 24.3 | 10 | 26.5 | 07 | 0 | 5 | 0 | 3 | 0 | 5 | 4 | 0 | 30.3 | 79 | 66 | 08 | |
| 第3半旬 | 11～15 | 27.4 | 29.5 | 30.3 | 12 | 27.7 | 11 | 25.1 | 23.2 | 13 | 26.7 | 12 | 0 | 5 | 0 | 3 | 0 | 5 | 2 | 0 | 30.0 | 82 | 68 | 15 | |
| 第4半旬 | 16～20 | 27.6 | 30.6 | 31.1 | 16 | 30.2 | 20* | 25.7 | 25.0 | 17 | 26.0 | 20 | 0 | 5 | 0 | 5 | 0 | 5 | 5 | 0 | 29.4 | 80 | 67 | 19 | |
| 第5半旬 | 21～25 | 27.2 | 29.7 | 30.0 | 22 | 29.5 | 24* | 25.4 | 25.0 | 24* | 25.8 | 22 | 0 | 5 | 0 | 5 | 0 | 5 | 1 | 0 | 27.7 | 77 | 64 | 25 | |
| 第6半旬 | 26～31 | 26.9 | 30.1 | 31.0 | 28 | 29.1 | 29 | 25.2 | 24.5 | 31 | 25.8 | 26 | 0 | 6 | 0 | 4 | 0 | 6 | 4 | 0 | 25.7 | 73 | 58 | 30* | |
| 第1半旬 | 1～ 5 | 26.9 | 29.4 | 30.7 | 05 | 28.1 | 03 | 24.9 | 24.1 | 02 | 26.0 | 04 | 0 | 5 | 0 | 2 | 0 | 5 | 1 | 0 | 27.8 | 78 | 64 | 05 | |
| 第2半旬 | 6～10 | 26.9 | 29.6 | 30.7 | 09 | 28.4 | 08 | 25.1 | 24.2 | 07 | 25.8 | 09 | 0 | 5 | 0 | 4 | 0 | 5 | 2 | 0 | 28.7 | 81 | 63 | 06 | |
| 第3半旬 | 11～15 | 26.8 | 29.9 | 30.6 | 15 | 29.3 | 14 | 25.2 | 24.8 | 14 | 25.6 | 13 | 0 | 5 | 0 | 4 | 0 | 5 | 2 | 0 | 27.2 | 77 | 59 | 15 | |
| 第4半旬 | 16～20 | 26.8 | 30.3 | 31.0 | 19 | 29.7 | 20 | 24.8 | 24.4 | 20 | 25.4 | 19 | 0 | 5 | 0 | 1 | 0 | 5 | 4 | 0 | 25.0 | 71 | 55 | 16 | |
| 第5半旬 | 21～25 | 25.6 | 27.9 | 29.3 | 25* | 26.1 | 22 | 24.0 | 22.7 | 21 | 24.9 | 25 | 0 | 4 | 0 | 0 | 0 | 5 | 0 | 0 | 24.4 | 74 | 57 | 25 | |
| 第6半旬 | 26～30 | 25.5 | 27.3 | 28.0 | 30* | 26.0 | 27 | 23.9 | 23.0 | 26 | 25.1 | 30 | 0 | 3 | 0 | 1 | 0 | 5 | 0 | 0 | 23.8 | 73 | 62 | 28 | |
| 第1半旬 | 1～ 5 | 24.9 | 27.4 | 27.8 | 01 | 26.9 | 04 | 22.8 | 20.4 | 03 | 25.1 | 01 | 0 | 2 | 0 | 1 | 0 | 5 | 0 | 0 | 24.6 | 78 | 63 | 02 | |
| 第2半旬 | 6～10 | 24.3 | 26.8 | 27.8 | 09 | 25.5 | 06 | 22.0 | 21.2 | 06 | 23.4 | 08 | 0 | 1 | 0 | 0 | 0 | 5 | 0 | 0 | 21.0 | 69 | 47 | 07 | |
| 第3半旬 | 11～15 | 24.5 | 26.4 | 27.5 | 12 | 24.4 | 11 | 23.0 | 22.1 | 11 | 23.7 | 14 | 0 | 1 | 0 | 0 | 0 | 4 | 0 | 0 | 24.0 | 78 | 60 | 15 | |
| 第4半旬 | 16～20 | 24.8 | 27.2 | 28.5 | 20 | 25.8 | 17 | 23.0 | 22.5 | 17 | 23.3 | 19 | 0 | 3 | 0 | 0 | 0 | 5 | 0 | 0 | 24.4 | 78 | 55 | 18 | |
| 第5半旬 | 21～25 | 24.7 | 27.0 | 28.4 | 22 | 25.6 | 21 | 23.0 | 21.4 | 25 | 24.2 | 22 | 0 | 2 | 0 | 0 | 0 | 5 | 0 | 0 | 24.1 | 77 | 58 | 25 | |
| 第6半旬 | 26～31 | 23.6 | 26.5 | 28.2 | 30 | 23.9 | 31 | 21.3 | 19.5 | 31 | 22.9 | 29 | 0 | 1 | 0 | 0 | 0 | 5 | 0 | 0 | 22.1 | 76 | 54 | 31 | |