Station Number 44356
Prefecture Tokyo [ Local Portal ]
Location 東京都小笠原村南鳥島 南鳥島気象観測所 (OGASAWARA MURA, TOKYO TO)
Months of Observations 75
Number of Observations 54,816
Period of Observations
Period Name Lat. Long. Height Anemometer
2010/06/01 -- 2016/08/99 MINAMITORISHIMA 24.288N 153.983E 7m 15.8m
Real-time Data AMeRAS (AMeDAS Ranking Service)
Past Heavy Rain Data AMeDAS heavy rain
Typhoon History
Neighbor Stations
Number Name Distance Azimuth

Statistics for the Whole Period

Precipitation

0.0mm - 0.4mm 0.0mm - 0.4mm = 52,038
[52,038 (94.93% / 94.97%)] [52,038 / 54,793 (94.97%)]
0.5mm - 1.4mm 0.5mm - 1.4mm = 1,436
[1,436 (2.62% / 2.62%)] [53,474 / 2,755 (97.59%)]
1.5mm - 2.4mm 1.5mm - 2.4mm = 441
[441 (0.80% / 0.80%)] [53,915 / 1,319 (98.40%)]
2.5mm - 3.4mm 2.5mm - 3.4mm = 260
[260 (0.47% / 0.47%)] [54,175 / 878 (98.87%)]
3.5mm - 4.4mm 3.5mm - 4.4mm = 159
[159 (0.29% / 0.29%)] [54,334 / 618 (99.16%)]
4.5mm - 5.4mm 4.5mm - 5.4mm = 104
[104 (0.19% / 0.19%)] [54,438 / 459 (99.35%)]
5.5mm - 6.4mm 5.5mm - 6.4mm = 89
[89 (0.16% / 0.16%)] [54,527 / 355 (99.51%)]
6.5mm - 7.4mm 6.5mm - 7.4mm = 51
[51 (0.09% / 0.09%)] [54,578 / 266 (99.61%)]
7.5mm - 8.4mm 7.5mm - 8.4mm = 34
[34 (0.06% / 0.06%)] [54,612 / 215 (99.67%)]
8.5mm - 9.4mm 8.5mm - 9.4mm = 29
[29 (0.05% / 0.05%)] [54,641 / 181 (99.72%)]
9.5mm - 10.4mm 9.5mm - 10.4mm = 23
[23 (0.04% / 0.04%)] [54,664 / 152 (99.76%)]
10.5mm - 11.4mm 10.5mm - 11.4mm = 25
[25 (0.05% / 0.05%)] [54,689 / 129 (99.81%)]
11.5mm - 12.4mm 11.5mm - 12.4mm = 16
[16 (0.03% / 0.03%)] [54,705 / 104 (99.84%)]
12.5mm - 13.4mm 12.5mm - 13.4mm = 15
[15 (0.03% / 0.03%)] [54,720 / 88 (99.87%)]
13.5mm - 14.4mm 13.5mm - 14.4mm = 13
[13 (0.02% / 0.02%)] [54,733 / 73 (99.89%)]
14.5mm - 15.4mm 14.5mm - 15.4mm = 6
[6 (0.01% / 0.01%)] [54,739 / 60 (99.90%)]
15.5mm - 16.4mm 15.5mm - 16.4mm = 10
[10 (0.02% / 0.02%)] [54,749 / 54 (99.92%)]
16.5mm - 17.4mm 16.5mm - 17.4mm = 7
[7 (0.01% / 0.01%)] [54,756 / 44 (99.93%)]
17.5mm - 18.4mm 17.5mm - 18.4mm = 2
[2 (0.00% / 0.00%)] [54,758 / 37 (99.94%)]
18.5mm - 19.4mm 18.5mm - 19.4mm = 9
[9 (0.02% / 0.02%)] [54,767 / 35 (99.95%)]
19.5mm - 20.4mm 19.5mm - 20.4mm = 4
[4 (0.01% / 0.01%)] [54,771 / 26 (99.96%)]
20.5mm - 21.4mm 20.5mm - 21.4mm = 3
[3 (0.01% / 0.01%)] [54,774 / 22 (99.97%)]
21.5mm - 22.4mm 21.5mm - 22.4mm = 2
[2 (0.00% / 0.00%)] [54,776 / 19 (99.97%)]
22.5mm - 23.4mm 22.5mm - 23.4mm = 5
[5 (0.01% / 0.01%)] [54,781 / 17 (99.98%)]
23.5mm - 24.4mm 23.5mm - 24.4mm = 2
[2 (0.00% / 0.00%)] [54,783 / 12 (99.98%)]
24.5mm - 25.4mm 24.5mm - 25.4mm = 2
[2 (0.00% / 0.00%)] [54,785 / 10 (99.99%)]
25.5mm - 26.4mm 25.5mm - 26.4mm = 2
[2 (0.00% / 0.00%)] [54,787 / 8 (99.99%)]
26.5mm - 27.4mm 26.5mm - 27.4mm = 1
[1 (0.00% / 0.00%)] [54,788 / 6 (99.99%)]
27.5mm - 28.4mm 27.5mm - 28.4mm = 1
[1 (0.00% / 0.00%)] [54,789 / 5 (99.99%)]
28.5mm - 29.4mm 28.5mm - 29.4mm = 1
[1 (0.00% / 0.00%)] [54,790 / 4 (99.99%)]
30.5mm - 31.4mm 30.5mm - 31.4mm = 1
[1 (0.00% / 0.00%)] [54,791 / 3 (100.00%)]
33.5mm - 34.4mm 33.5mm - 34.4mm = 2
[2 (0.00% / 0.00%)] [54,793 / 2 (100.00%)]

Missing observations (23 / 0.04%)

Wind Direction

Calm Calm = 49
[49 (0.09% / 0.09%)] [0 / 0 (NA)]
NNE NNE = 3,576
[3,576 (6.52% / 6.53%)] [0 / 0 (NA)]
NE NE = 5,024
[5,024 (9.17% / 9.17%)] [0 / 0 (NA)]
ENE ENE = 7,619
[7,619 (13.90% / 13.91%)] [0 / 0 (NA)]
E E = 8,518
[8,518 (15.54% / 15.55%)] [0 / 0 (NA)]
ESE ESE = 6,578
[6,578 (12.00% / 12.01%)] [0 / 0 (NA)]
SE SE = 4,489
[4,489 (8.19% / 8.19%)] [0 / 0 (NA)]
SSE SSE = 2,663
[2,663 (4.86% / 4.86%)] [0 / 0 (NA)]
S S = 2,483
[2,483 (4.53% / 4.53%)] [0 / 0 (NA)]
SSW SSW = 3,611
[3,611 (6.59% / 6.59%)] [0 / 0 (NA)]
SW SW = 2,470
[2,470 (4.51% / 4.51%)] [0 / 0 (NA)]
WSW WSW = 1,187
[1,187 (2.17% / 2.17%)] [0 / 0 (NA)]
W W = 984
[984 (1.80% / 1.80%)] [0 / 0 (NA)]
WNW WNW = 815
[815 (1.49% / 1.49%)] [0 / 0 (NA)]
NW NW = 1,093
[1,093 (1.99% / 2.00%)] [0 / 0 (NA)]
NNW NNW = 1,477
[1,477 (2.69% / 2.70%)] [0 / 0 (NA)]
N N = 2,145
[2,145 (3.91% / 3.92%)] [0 / 0 (NA)]

Missing observations (35 / 0.06%)

Wind Speed

0.0m/s - 0.4m/s 0.0m/s - 0.4m/s = 110
[110 (0.20% / 0.20%)] [110 / 54,777 (0.20%)]
0.5m/s - 1.4m/s 0.5m/s - 1.4m/s = 1,372
[1,372 (2.50% / 2.50%)] [1,482 / 54,667 (2.71%)]
1.5m/s - 2.4m/s 1.5m/s - 2.4m/s = 4,015
[4,015 (7.32% / 7.33%)] [5,497 / 53,295 (10.04%)]
2.5m/s - 3.4m/s 2.5m/s - 3.4m/s = 6,501
[6,501 (11.86% / 11.87%)] [11,998 / 49,280 (21.90%)]
3.5m/s - 4.4m/s 3.5m/s - 4.4m/s = 7,860
[7,860 (14.34% / 14.35%)] [19,858 / 42,779 (36.25%)]
4.5m/s - 5.4m/s 4.5m/s - 5.4m/s = 7,971
[7,971 (14.54% / 14.55%)] [27,829 / 34,919 (50.80%)]
5.5m/s - 6.4m/s 5.5m/s - 6.4m/s = 7,262
[7,262 (13.25% / 13.26%)] [35,091 / 26,948 (64.06%)]
6.5m/s - 7.4m/s 6.5m/s - 7.4m/s = 6,323
[6,323 (11.53% / 11.54%)] [41,414 / 19,686 (75.60%)]
7.5m/s - 8.4m/s 7.5m/s - 8.4m/s = 5,191
[5,191 (9.47% / 9.48%)] [46,605 / 13,363 (85.08%)]
8.5m/s - 9.4m/s 8.5m/s - 9.4m/s = 3,706
[3,706 (6.76% / 6.77%)] [50,311 / 8,172 (91.85%)]
9.5m/s - 10.4m/s 9.5m/s - 10.4m/s = 2,227
[2,227 (4.06% / 4.07%)] [52,538 / 4,466 (95.91%)]
10.5m/s - 11.4m/s 10.5m/s - 11.4m/s = 1,218
[1,218 (2.22% / 2.22%)] [53,756 / 2,239 (98.14%)]
11.5m/s - 12.4m/s 11.5m/s - 12.4m/s = 552
[552 (1.01% / 1.01%)] [54,308 / 1,021 (99.14%)]
12.5m/s - 13.4m/s 12.5m/s - 13.4m/s = 238
[238 (0.43% / 0.43%)] [54,546 / 469 (99.58%)]
13.5m/s - 14.4m/s 13.5m/s - 14.4m/s = 91
[91 (0.17% / 0.17%)] [54,637 / 231 (99.74%)]
14.5m/s - 15.4m/s 14.5m/s - 15.4m/s = 46
[46 (0.08% / 0.08%)] [54,683 / 140 (99.83%)]
15.5m/s - 16.4m/s 15.5m/s - 16.4m/s = 22
[22 (0.04% / 0.04%)] [54,705 / 94 (99.87%)]
16.5m/s - 17.4m/s 16.5m/s - 17.4m/s = 12
[12 (0.02% / 0.02%)] [54,717 / 72 (99.89%)]
17.5m/s - 18.4m/s 17.5m/s - 18.4m/s = 18
[18 (0.03% / 0.03%)] [54,735 / 60 (99.92%)]
18.5m/s - 19.4m/s 18.5m/s - 19.4m/s = 16
[16 (0.03% / 0.03%)] [54,751 / 42 (99.95%)]
19.5m/s - 20.4m/s 19.5m/s - 20.4m/s = 9
[9 (0.02% / 0.02%)] [54,760 / 26 (99.97%)]
20.5m/s - 21.4m/s 20.5m/s - 21.4m/s = 6
[6 (0.01% / 0.01%)] [54,766 / 17 (99.98%)]
21.5m/s - 22.4m/s 21.5m/s - 22.4m/s = 5
[5 (0.01% / 0.01%)] [54,771 / 11 (99.99%)]
22.5m/s - 23.4m/s 22.5m/s - 23.4m/s = 6
[6 (0.01% / 0.01%)] [54,777 / 6 (100.00%)]

Missing observations (39 / 0.07%)

Temperature

15.5C - 16.4C 15.5C - 16.4C = 4
[4 (0.01% / 0.01%)] [4 / 54,803 (0.01%)]
16.5C - 17.4C 16.5C - 17.4C = 57
[57 (0.10% / 0.10%)] [61 / 54,799 (0.11%)]
17.5C - 18.4C 17.5C - 18.4C = 293
[293 (0.53% / 0.53%)] [354 / 54,742 (0.65%)]
18.5C - 19.4C 18.5C - 19.4C = 760
[760 (1.39% / 1.39%)] [1,114 / 54,449 (2.03%)]
19.5C - 20.4C 19.5C - 20.4C = 1,664
[1,664 (3.04% / 3.04%)] [2,778 / 53,689 (5.07%)]
20.5C - 21.4C 20.5C - 21.4C = 2,960
[2,960 (5.40% / 5.40%)] [5,738 / 52,025 (10.47%)]
21.5C - 22.4C 21.5C - 22.4C = 3,860
[3,860 (7.04% / 7.04%)] [9,598 / 49,065 (17.51%)]
22.5C - 23.4C 22.5C - 23.4C = 4,104
[4,104 (7.49% / 7.49%)] [13,702 / 45,205 (25.00%)]
23.5C - 24.4C 23.5C - 24.4C = 4,393
[4,393 (8.01% / 8.02%)] [18,095 / 41,101 (33.02%)]
24.5C - 25.4C 24.5C - 25.4C = 4,863
[4,863 (8.87% / 8.87%)] [22,958 / 36,708 (41.89%)]
25.5C - 26.4C 25.5C - 26.4C = 5,892
[5,892 (10.75% / 10.75%)] [28,850 / 31,845 (52.64%)]
26.5C - 27.4C 26.5C - 27.4C = 7,437
[7,437 (13.57% / 13.57%)] [36,287 / 25,953 (66.21%)]
27.5C - 28.4C 27.5C - 28.4C = 8,322
[8,322 (15.18% / 15.19%)] [44,609 / 18,516 (81.40%)]
28.5C - 29.4C 28.5C - 29.4C = 5,537
[5,537 (10.10% / 10.10%)] [50,146 / 10,194 (91.50%)]
29.5C - 30.4C 29.5C - 30.4C = 3,060
[3,060 (5.58% / 5.58%)] [53,206 / 4,657 (97.09%)]
30.5C - 31.4C 30.5C - 31.4C = 1,363
[1,363 (2.49% / 2.49%)] [54,569 / 1,597 (99.57%)]
31.5C - 32.4C 31.5C - 32.4C = 219
[219 (0.40% / 0.40%)] [54,788 / 234 (99.97%)]
32.5C - 33.4C 32.5C - 33.4C = 13
[13 (0.02% / 0.02%)] [54,801 / 15 (100.00%)]
33.5C - 34.4C 33.5C - 34.4C = 2
[2 (0.00% / 0.00%)] [54,803 / 2 (100.00%)]

Missing observations (13 / 0.02%)

Sunshine Duration

0.0h 0.0h = 31,608
[31,608 (57.66% / 57.76%)] [31,608 / 54,726 (57.76%)]
0.1h 0.1h = 1,446
[1,446 (2.64% / 2.64%)] [33,054 / 23,118 (60.40%)]
0.2h 0.2h = 1,061
[1,061 (1.94% / 1.94%)] [34,115 / 21,672 (62.34%)]
0.3h 0.3h = 1,121
[1,121 (2.05% / 2.05%)] [35,236 / 20,611 (64.39%)]
0.4h 0.4h = 1,013
[1,013 (1.85% / 1.85%)] [36,249 / 19,490 (66.24%)]
0.5h 0.5h = 1,078
[1,078 (1.97% / 1.97%)] [37,327 / 18,477 (68.21%)]
0.6h 0.6h = 1,177
[1,177 (2.15% / 2.15%)] [38,504 / 17,399 (70.36%)]
0.7h 0.7h = 1,413
[1,413 (2.58% / 2.58%)] [39,917 / 16,222 (72.94%)]
0.8h 0.8h = 1,919
[1,919 (3.50% / 3.51%)] [41,836 / 14,809 (76.45%)]
0.9h 0.9h = 3,198
[3,198 (5.83% / 5.84%)] [45,034 / 12,890 (82.29%)]
1.0h 1.0h = 9,692
[9,692 (17.68% / 17.71%)] [54,726 / 9,692 (100.00%)]

Missing observations (90 / 0.16%)