Station Number 44262
Prefecture Tokyo [ Local Portal ]
Location 東京都八丈島八丈町大賀郷 八丈島航空気象観測所 (HACHIJOJIMA HACHIJO MACHI, TOKYO TO)
Months of Observations 147
Number of Observations 107,352
Period of Observations
Period Name Lat. Long. Height Anemometer
2003/01/01 -- 2017/03/99 YAEMIGAHARA 33.115N 139.785E 92m 8.8m
Real-time Data AMeRAS (AMeDAS Ranking Service)
Past Heavy Rain Data AMeDAS heavy rain
Weather Disaster Reports
Typhoon History
Neighbor Stations
Number Name Distance Azimuth
44263 HACHIJOJIMA (Tokyo) 1.01km 319deg.
44261 HACHIJOJIMA (Tokyo) 1.34km 187deg.

Statistics for the Whole Period

Precipitation

0.0mm - 0.4mm 0.0mm - 0.4mm = 95,333
[95,333 (88.80% / 89.08%)] [95,333 / 107,020 (89.08%)]
0.5mm - 1.4mm 0.5mm - 1.4mm = 5,442
[5,442 (5.07% / 5.09%)] [100,775 / 11,687 (94.16%)]
1.5mm - 2.4mm 1.5mm - 2.4mm = 2,119
[2,119 (1.97% / 1.98%)] [102,894 / 6,245 (96.14%)]
2.5mm - 3.4mm 2.5mm - 3.4mm = 1,149
[1,149 (1.07% / 1.07%)] [104,043 / 4,126 (97.22%)]
3.5mm - 4.4mm 3.5mm - 4.4mm = 705
[705 (0.66% / 0.66%)] [104,748 / 2,977 (97.88%)]
4.5mm - 5.4mm 4.5mm - 5.4mm = 534
[534 (0.50% / 0.50%)] [105,282 / 2,272 (98.38%)]
5.5mm - 6.4mm 5.5mm - 6.4mm = 377
[377 (0.35% / 0.35%)] [105,659 / 1,738 (98.73%)]
6.5mm - 7.4mm 6.5mm - 7.4mm = 274
[274 (0.26% / 0.26%)] [105,933 / 1,361 (98.98%)]
7.5mm - 8.4mm 7.5mm - 8.4mm = 212
[212 (0.20% / 0.20%)] [106,145 / 1,087 (99.18%)]
8.5mm - 9.4mm 8.5mm - 9.4mm = 153
[153 (0.14% / 0.14%)] [106,298 / 875 (99.33%)]
9.5mm - 10.4mm 9.5mm - 10.4mm = 104
[104 (0.10% / 0.10%)] [106,402 / 722 (99.42%)]
10.5mm - 11.4mm 10.5mm - 11.4mm = 111
[111 (0.10% / 0.10%)] [106,513 / 618 (99.53%)]
11.5mm - 12.4mm 11.5mm - 12.4mm = 76
[76 (0.07% / 0.07%)] [106,589 / 507 (99.60%)]
12.5mm - 13.4mm 12.5mm - 13.4mm = 78
[78 (0.07% / 0.07%)] [106,667 / 431 (99.67%)]
13.5mm - 14.4mm 13.5mm - 14.4mm = 45
[45 (0.04% / 0.04%)] [106,712 / 353 (99.71%)]
14.5mm - 15.4mm 14.5mm - 15.4mm = 51
[51 (0.05% / 0.05%)] [106,763 / 308 (99.76%)]
15.5mm - 16.4mm 15.5mm - 16.4mm = 37
[37 (0.03% / 0.03%)] [106,800 / 257 (99.79%)]
16.5mm - 17.4mm 16.5mm - 17.4mm = 26
[26 (0.02% / 0.02%)] [106,826 / 220 (99.82%)]
17.5mm - 18.4mm 17.5mm - 18.4mm = 26
[26 (0.02% / 0.02%)] [106,852 / 194 (99.84%)]
18.5mm - 19.4mm 18.5mm - 19.4mm = 20
[20 (0.02% / 0.02%)] [106,872 / 168 (99.86%)]
19.5mm - 20.4mm 19.5mm - 20.4mm = 24
[24 (0.02% / 0.02%)] [106,896 / 148 (99.88%)]
20.5mm - 21.4mm 20.5mm - 21.4mm = 15
[15 (0.01% / 0.01%)] [106,911 / 124 (99.90%)]
21.5mm - 22.4mm 21.5mm - 22.4mm = 11
[11 (0.01% / 0.01%)] [106,922 / 109 (99.91%)]
22.5mm - 23.4mm 22.5mm - 23.4mm = 11
[11 (0.01% / 0.01%)] [106,933 / 98 (99.92%)]
23.5mm - 24.4mm 23.5mm - 24.4mm = 10
[10 (0.01% / 0.01%)] [106,943 / 87 (99.93%)]
24.5mm - 25.4mm 24.5mm - 25.4mm = 7
[7 (0.01% / 0.01%)] [106,950 / 77 (99.93%)]
25.5mm - 26.4mm 25.5mm - 26.4mm = 11
[11 (0.01% / 0.01%)] [106,961 / 70 (99.94%)]
26.5mm - 27.4mm 26.5mm - 27.4mm = 5
[5 (0.00% / 0.00%)] [106,966 / 59 (99.95%)]
27.5mm - 28.4mm 27.5mm - 28.4mm = 7
[7 (0.01% / 0.01%)] [106,973 / 54 (99.96%)]
28.5mm - 29.4mm 28.5mm - 29.4mm = 6
[6 (0.01% / 0.01%)] [106,979 / 47 (99.96%)]
29.5mm - 30.4mm 29.5mm - 30.4mm = 3
[3 (0.00% / 0.00%)] [106,982 / 41 (99.96%)]
30.5mm - 31.4mm 30.5mm - 31.4mm = 4
[4 (0.00% / 0.00%)] [106,986 / 38 (99.97%)]
31.5mm - 32.4mm 31.5mm - 32.4mm = 3
[3 (0.00% / 0.00%)] [106,989 / 34 (99.97%)]
32.5mm - 33.4mm 32.5mm - 33.4mm = 5
[5 (0.00% / 0.00%)] [106,994 / 31 (99.98%)]
33.5mm - 34.4mm 33.5mm - 34.4mm = 1
[1 (0.00% / 0.00%)] [106,995 / 26 (99.98%)]
34.5mm - 35.4mm 34.5mm - 35.4mm = 4
[4 (0.00% / 0.00%)] [106,999 / 25 (99.98%)]
35.5mm - 36.4mm 35.5mm - 36.4mm = 2
[2 (0.00% / 0.00%)] [107,001 / 21 (99.98%)]
36.5mm - 37.4mm 36.5mm - 37.4mm = 1
[1 (0.00% / 0.00%)] [107,002 / 19 (99.98%)]
37.5mm - 38.4mm 37.5mm - 38.4mm = 2
[2 (0.00% / 0.00%)] [107,004 / 18 (99.99%)]
38.5mm - 39.4mm 38.5mm - 39.4mm = 2
[2 (0.00% / 0.00%)] [107,006 / 16 (99.99%)]
44.5mm - 45.4mm 44.5mm - 45.4mm = 2
[2 (0.00% / 0.00%)] [107,008 / 14 (99.99%)]
45.5mm - 46.4mm 45.5mm - 46.4mm = 1
[1 (0.00% / 0.00%)] [107,009 / 12 (99.99%)]
47.5mm - 48.4mm 47.5mm - 48.4mm = 2
[2 (0.00% / 0.00%)] [107,011 / 11 (99.99%)]
48.5mm - 49.4mm 48.5mm - 49.4mm = 1
[1 (0.00% / 0.00%)] [107,012 / 9 (99.99%)]
49.5mm - 50.4mm 49.5mm - 50.4mm = 1
[1 (0.00% / 0.00%)] [107,013 / 8 (99.99%)]
52.5mm - 53.4mm 52.5mm - 53.4mm = 1
[1 (0.00% / 0.00%)] [107,014 / 7 (99.99%)]
54.5mm - 55.4mm 54.5mm - 55.4mm = 1
[1 (0.00% / 0.00%)] [107,015 / 6 (100.00%)]
58.5mm - 59.4mm 58.5mm - 59.4mm = 1
[1 (0.00% / 0.00%)] [107,016 / 5 (100.00%)]
60.5mm - 61.4mm 60.5mm - 61.4mm = 1
[1 (0.00% / 0.00%)] [107,017 / 4 (100.00%)]
64.5mm - 65.4mm 64.5mm - 65.4mm = 1
[1 (0.00% / 0.00%)] [107,018 / 3 (100.00%)]
70.5mm - 71.4mm 70.5mm - 71.4mm = 1
[1 (0.00% / 0.00%)] [107,019 / 2 (100.00%)]
83.5mm - 84.4mm 83.5mm - 84.4mm = 1
[1 (0.00% / 0.00%)] [107,020 / 1 (100.00%)]

Missing observations (332 / 0.31%)

Wind Direction

Calm Calm = 191
[191 (0.18% / 0.18%)] [0 / 0 (NA)]
NNE NNE = 6,708
[6,708 (6.25% / 6.26%)] [0 / 0 (NA)]
NE NE = 15,757
[15,757 (14.68% / 14.71%)] [0 / 0 (NA)]
ENE ENE = 8,529
[8,529 (7.94% / 7.96%)] [0 / 0 (NA)]
E E = 2,372
[2,372 (2.21% / 2.21%)] [0 / 0 (NA)]
ESE ESE = 1,392
[1,392 (1.30% / 1.30%)] [0 / 0 (NA)]
SE SE = 1,316
[1,316 (1.23% / 1.23%)] [0 / 0 (NA)]
SSE SSE = 1,633
[1,633 (1.52% / 1.52%)] [0 / 0 (NA)]
S S = 4,747
[4,747 (4.42% / 4.43%)] [0 / 0 (NA)]
SSW SSW = 9,144
[9,144 (8.52% / 8.54%)] [0 / 0 (NA)]
SW SW = 15,037
[15,037 (14.01% / 14.04%)] [0 / 0 (NA)]
WSW WSW = 10,499
[10,499 (9.78% / 9.80%)] [0 / 0 (NA)]
W W = 13,476
[13,476 (12.55% / 12.58%)] [0 / 0 (NA)]
WNW WNW = 8,882
[8,882 (8.27% / 8.29%)] [0 / 0 (NA)]
NW NW = 3,262
[3,262 (3.04% / 3.05%)] [0 / 0 (NA)]
NNW NNW = 1,823
[1,823 (1.70% / 1.70%)] [0 / 0 (NA)]
N N = 2,347
[2,347 (2.19% / 2.19%)] [0 / 0 (NA)]

Missing observations (237 / 0.22%)

Wind Speed

0.0m/s - 0.4m/s 0.0m/s - 0.4m/s = 518
[518 (0.48% / 0.48%)] [518 / 107,116 (0.48%)]
0.5m/s - 1.4m/s 0.5m/s - 1.4m/s = 7,389
[7,389 (6.88% / 6.90%)] [7,907 / 106,598 (7.38%)]
1.5m/s - 2.4m/s 1.5m/s - 2.4m/s = 11,303
[11,303 (10.53% / 10.55%)] [19,210 / 99,209 (17.93%)]
2.5m/s - 3.4m/s 2.5m/s - 3.4m/s = 12,040
[12,040 (11.22% / 11.24%)] [31,250 / 87,906 (29.17%)]
3.5m/s - 4.4m/s 3.5m/s - 4.4m/s = 13,531
[13,531 (12.60% / 12.63%)] [44,781 / 75,866 (41.81%)]
4.5m/s - 5.4m/s 4.5m/s - 5.4m/s = 13,624
[13,624 (12.69% / 12.72%)] [58,405 / 62,335 (54.53%)]
5.5m/s - 6.4m/s 5.5m/s - 6.4m/s = 12,426
[12,426 (11.58% / 11.60%)] [70,831 / 48,711 (66.13%)]
6.5m/s - 7.4m/s 6.5m/s - 7.4m/s = 10,479
[10,479 (9.76% / 9.78%)] [81,310 / 36,285 (75.91%)]
7.5m/s - 8.4m/s 7.5m/s - 8.4m/s = 8,678
[8,678 (8.08% / 8.10%)] [89,988 / 25,806 (84.01%)]
8.5m/s - 9.4m/s 8.5m/s - 9.4m/s = 6,333
[6,333 (5.90% / 5.91%)] [96,321 / 17,128 (89.92%)]
9.5m/s - 10.4m/s 9.5m/s - 10.4m/s = 4,224
[4,224 (3.93% / 3.94%)] [100,545 / 10,795 (93.87%)]
10.5m/s - 11.4m/s 10.5m/s - 11.4m/s = 2,593
[2,593 (2.42% / 2.42%)] [103,138 / 6,571 (96.29%)]
11.5m/s - 12.4m/s 11.5m/s - 12.4m/s = 1,662
[1,662 (1.55% / 1.55%)] [104,800 / 3,978 (97.84%)]
12.5m/s - 13.4m/s 12.5m/s - 13.4m/s = 935
[935 (0.87% / 0.87%)] [105,735 / 2,316 (98.71%)]
13.5m/s - 14.4m/s 13.5m/s - 14.4m/s = 537
[537 (0.50% / 0.50%)] [106,272 / 1,381 (99.21%)]
14.5m/s - 15.4m/s 14.5m/s - 15.4m/s = 326
[326 (0.30% / 0.30%)] [106,598 / 844 (99.52%)]
15.5m/s - 16.4m/s 15.5m/s - 16.4m/s = 202
[202 (0.19% / 0.19%)] [106,800 / 518 (99.70%)]
16.5m/s - 17.4m/s 16.5m/s - 17.4m/s = 135
[135 (0.13% / 0.13%)] [106,935 / 316 (99.83%)]
17.5m/s - 18.4m/s 17.5m/s - 18.4m/s = 78
[78 (0.07% / 0.07%)] [107,013 / 181 (99.90%)]
18.5m/s - 19.4m/s 18.5m/s - 19.4m/s = 50
[50 (0.05% / 0.05%)] [107,063 / 103 (99.95%)]
19.5m/s - 20.4m/s 19.5m/s - 20.4m/s = 22
[22 (0.02% / 0.02%)] [107,085 / 53 (99.97%)]
20.5m/s - 21.4m/s 20.5m/s - 21.4m/s = 13
[13 (0.01% / 0.01%)] [107,098 / 31 (99.98%)]
21.5m/s - 22.4m/s 21.5m/s - 22.4m/s = 10
[10 (0.01% / 0.01%)] [107,108 / 18 (99.99%)]
22.5m/s - 23.4m/s 22.5m/s - 23.4m/s = 1
[1 (0.00% / 0.00%)] [107,109 / 8 (99.99%)]
23.5m/s - 24.4m/s 23.5m/s - 24.4m/s = 3
[3 (0.00% / 0.00%)] [107,112 / 7 (100.00%)]
24.5m/s - 25.4m/s 24.5m/s - 25.4m/s = 1
[1 (0.00% / 0.00%)] [107,113 / 4 (100.00%)]
25.5m/s - 26.4m/s 25.5m/s - 26.4m/s = 2
[2 (0.00% / 0.00%)] [107,115 / 3 (100.00%)]
29.5m/s - 30.4m/s 29.5m/s - 30.4m/s = 1
[1 (0.00% / 0.00%)] [107,116 / 1 (100.00%)]

Missing observations (236 / 0.22%)

Temperature

-0.5C - 0.4C -0.5C - 0.4C = 1
[1 (0.00% / 0.00%)] [1 / 107,127 (0.00%)]
0.5C - 1.4C 0.5C - 1.4C = 2
[2 (0.00% / 0.00%)] [3 / 107,126 (0.00%)]
1.5C - 2.4C 1.5C - 2.4C = 15
[15 (0.01% / 0.01%)] [18 / 107,124 (0.02%)]
2.5C - 3.4C 2.5C - 3.4C = 35
[35 (0.03% / 0.03%)] [53 / 107,109 (0.05%)]
3.5C - 4.4C 3.5C - 4.4C = 127
[127 (0.12% / 0.12%)] [180 / 107,074 (0.17%)]
4.5C - 5.4C 4.5C - 5.4C = 296
[296 (0.28% / 0.28%)] [476 / 106,947 (0.44%)]
5.5C - 6.4C 5.5C - 6.4C = 854
[854 (0.80% / 0.80%)] [1,330 / 106,651 (1.24%)]
6.5C - 7.4C 6.5C - 7.4C = 1,551
[1,551 (1.44% / 1.45%)] [2,881 / 105,797 (2.69%)]
7.5C - 8.4C 7.5C - 8.4C = 2,681
[2,681 (2.50% / 2.50%)] [5,562 / 104,246 (5.19%)]
8.5C - 9.4C 8.5C - 9.4C = 3,923
[3,923 (3.65% / 3.66%)] [9,485 / 101,565 (8.85%)]
9.5C - 10.4C 9.5C - 10.4C = 4,398
[4,398 (4.10% / 4.11%)] [13,883 / 97,642 (12.96%)]
10.5C - 11.4C 10.5C - 11.4C = 4,626
[4,626 (4.31% / 4.32%)] [18,509 / 93,244 (17.28%)]
11.5C - 12.4C 11.5C - 12.4C = 4,376
[4,376 (4.08% / 4.08%)] [22,885 / 88,618 (21.36%)]
12.5C - 13.4C 12.5C - 13.4C = 4,324
[4,324 (4.03% / 4.04%)] [27,209 / 84,242 (25.40%)]
13.5C - 14.4C 13.5C - 14.4C = 4,752
[4,752 (4.43% / 4.44%)] [31,961 / 79,918 (29.83%)]
14.5C - 15.4C 14.5C - 15.4C = 4,891
[4,891 (4.56% / 4.57%)] [36,852 / 75,166 (34.40%)]
15.5C - 16.4C 15.5C - 16.4C = 4,710
[4,710 (4.39% / 4.40%)] [41,562 / 70,275 (38.80%)]
16.5C - 17.4C 16.5C - 17.4C = 4,863
[4,863 (4.53% / 4.54%)] [46,425 / 65,565 (43.34%)]
17.5C - 18.4C 17.5C - 18.4C = 5,127
[5,127 (4.78% / 4.79%)] [51,552 / 60,702 (48.12%)]
18.5C - 19.4C 18.5C - 19.4C = 5,730
[5,730 (5.34% / 5.35%)] [57,282 / 55,575 (53.47%)]
19.5C - 20.4C 19.5C - 20.4C = 5,585
[5,585 (5.20% / 5.21%)] [62,867 / 49,845 (58.68%)]
20.5C - 21.4C 20.5C - 21.4C = 5,544
[5,544 (5.16% / 5.18%)] [68,411 / 44,260 (63.86%)]
21.5C - 22.4C 21.5C - 22.4C = 5,424
[5,424 (5.05% / 5.06%)] [73,835 / 38,716 (68.92%)]
22.5C - 23.4C 22.5C - 23.4C = 5,323
[5,323 (4.96% / 4.97%)] [79,158 / 33,292 (73.89%)]
23.5C - 24.4C 23.5C - 24.4C = 4,925
[4,925 (4.59% / 4.60%)] [84,083 / 27,969 (78.49%)]
24.5C - 25.4C 24.5C - 25.4C = 5,144
[5,144 (4.79% / 4.80%)] [89,227 / 23,044 (83.29%)]
25.5C - 26.4C 25.5C - 26.4C = 5,594
[5,594 (5.21% / 5.22%)] [94,821 / 17,900 (88.51%)]
26.5C - 27.4C 26.5C - 27.4C = 4,905
[4,905 (4.57% / 4.58%)] [99,726 / 12,306 (93.09%)]
27.5C - 28.4C 27.5C - 28.4C = 3,206
[3,206 (2.99% / 2.99%)] [102,932 / 7,401 (96.08%)]
28.5C - 29.4C 28.5C - 29.4C = 2,324
[2,324 (2.16% / 2.17%)] [105,256 / 4,195 (98.25%)]
29.5C - 30.4C 29.5C - 30.4C = 1,369
[1,369 (1.28% / 1.28%)] [106,625 / 1,871 (99.53%)]
30.5C - 31.4C 30.5C - 31.4C = 424
[424 (0.39% / 0.40%)] [107,049 / 502 (99.93%)]
31.5C - 32.4C 31.5C - 32.4C = 72
[72 (0.07% / 0.07%)] [107,121 / 78 (99.99%)]
32.5C - 33.4C 32.5C - 33.4C = 6
[6 (0.01% / 0.01%)] [107,127 / 6 (100.00%)]

Missing observations (225 / 0.21%)