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 204
Number of Observations 149,016
Period of Observations
Period Name Lat. Long. Height Anemometer
2003/01/01 -- 2019/11/06 YAEMIGAHARA 33.115N 139.785E 92m 8.8m
2019/11/07 -- 2019/12/99 YAEMIGAHARA 33.115N 139.785E 92m 10.3m
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 = 132,339
[132,339 (88.81% / 89.12%)] [132,339 / 148,487 (89.12)]
0.5mm - 1.4mm 0.5mm - 1.4mm = 7,387
[7,387 (4.96% / 4.97%)] [139,726 / 16,148 (94.10)]
1.5mm - 2.4mm 1.5mm - 2.4mm = 2,915
[2,915 (1.96% / 1.96%)] [142,641 / 8,761 (96.06)]
2.5mm - 3.4mm 2.5mm - 3.4mm = 1,604
[1,604 (1.08% / 1.08%)] [144,245 / 5,846 (97.14)]
3.5mm - 4.4mm 3.5mm - 4.4mm = 1,011
[1,011 (0.68% / 0.68%)] [145,256 / 4,242 (97.82)]
4.5mm - 5.4mm 4.5mm - 5.4mm = 742
[742 (0.50% / 0.50%)] [145,998 / 3,231 (98.32)]
5.5mm - 6.4mm 5.5mm - 6.4mm = 529
[529 (0.35% / 0.36%)] [146,527 / 2,489 (98.68)]
6.5mm - 7.4mm 6.5mm - 7.4mm = 379
[379 (0.25% / 0.26%)] [146,906 / 1,960 (98.94)]
7.5mm - 8.4mm 7.5mm - 8.4mm = 316
[316 (0.21% / 0.21%)] [147,222 / 1,581 (99.15)]
8.5mm - 9.4mm 8.5mm - 9.4mm = 219
[219 (0.15% / 0.15%)] [147,441 / 1,265 (99.30)]
9.5mm - 10.4mm 9.5mm - 10.4mm = 145
[145 (0.10% / 0.10%)] [147,586 / 1,046 (99.39)]
10.5mm - 11.4mm 10.5mm - 11.4mm = 168
[168 (0.11% / 0.11%)] [147,754 / 901 (99.51)]
11.5mm - 12.4mm 11.5mm - 12.4mm = 115
[115 (0.08% / 0.08%)] [147,869 / 733 (99.58)]
12.5mm - 13.4mm 12.5mm - 13.4mm = 97
[97 (0.07% / 0.07%)] [147,966 / 618 (99.65)]
13.5mm - 14.4mm 13.5mm - 14.4mm = 74
[74 (0.05% / 0.05%)] [148,040 / 521 (99.70)]
14.5mm - 15.4mm 14.5mm - 15.4mm = 64
[64 (0.04% / 0.04%)] [148,104 / 447 (99.74)]
15.5mm - 16.4mm 15.5mm - 16.4mm = 57
[57 (0.04% / 0.04%)] [148,161 / 383 (99.78)]
16.5mm - 17.4mm 16.5mm - 17.4mm = 41
[41 (0.03% / 0.03%)] [148,202 / 326 (99.81)]
17.5mm - 18.4mm 17.5mm - 18.4mm = 39
[39 (0.03% / 0.03%)] [148,241 / 285 (99.83)]
18.5mm - 19.4mm 18.5mm - 19.4mm = 28
[28 (0.02% / 0.02%)] [148,269 / 246 (99.85)]
19.5mm - 20.4mm 19.5mm - 20.4mm = 33
[33 (0.02% / 0.02%)] [148,302 / 218 (99.88)]
20.5mm - 21.4mm 20.5mm - 21.4mm = 21
[21 (0.01% / 0.01%)] [148,323 / 185 (99.89)]
21.5mm - 22.4mm 21.5mm - 22.4mm = 17
[17 (0.01% / 0.01%)] [148,340 / 164 (99.90)]
22.5mm - 23.4mm 22.5mm - 23.4mm = 17
[17 (0.01% / 0.01%)] [148,357 / 147 (99.91)]
23.5mm - 24.4mm 23.5mm - 24.4mm = 12
[12 (0.01% / 0.01%)] [148,369 / 130 (99.92)]
24.5mm - 25.4mm 24.5mm - 25.4mm = 12
[12 (0.01% / 0.01%)] [148,381 / 118 (99.93)]
25.5mm - 26.4mm 25.5mm - 26.4mm = 13
[13 (0.01% / 0.01%)] [148,394 / 106 (99.94)]
26.5mm - 27.4mm 26.5mm - 27.4mm = 6
[6 (0.00% / 0.00%)] [148,400 / 93 (99.94)]
27.5mm - 28.4mm 27.5mm - 28.4mm = 9
[9 (0.01% / 0.01%)] [148,409 / 87 (99.95)]
28.5mm - 29.4mm 28.5mm - 29.4mm = 11
[11 (0.01% / 0.01%)] [148,420 / 78 (99.95)]
29.5mm - 30.4mm 29.5mm - 30.4mm = 7
[7 (0.00% / 0.00%)] [148,427 / 67 (99.96)]
30.5mm - 31.4mm 30.5mm - 31.4mm = 4
[4 (0.00% / 0.00%)] [148,431 / 60 (99.96)]
31.5mm - 32.4mm 31.5mm - 32.4mm = 7
[7 (0.00% / 0.00%)] [148,438 / 56 (99.97)]
32.5mm - 33.4mm 32.5mm - 33.4mm = 9
[9 (0.01% / 0.01%)] [148,447 / 49 (99.97)]
33.5mm - 34.4mm 33.5mm - 34.4mm = 1
[1 (0.00% / 0.00%)] [148,448 / 40 (99.97)]
34.5mm - 35.4mm 34.5mm - 35.4mm = 6
[6 (0.00% / 0.00%)] [148,454 / 39 (99.98)]
35.5mm - 36.4mm 35.5mm - 36.4mm = 5
[5 (0.00% / 0.00%)] [148,459 / 33 (99.98)]
36.5mm - 37.4mm 36.5mm - 37.4mm = 1
[1 (0.00% / 0.00%)] [148,460 / 28 (99.98)]
37.5mm - 38.4mm 37.5mm - 38.4mm = 3
[3 (0.00% / 0.00%)] [148,463 / 27 (99.98)]
38.5mm - 39.4mm 38.5mm - 39.4mm = 2
[2 (0.00% / 0.00%)] [148,465 / 24 (99.99)]
41.5mm - 42.4mm 41.5mm - 42.4mm = 1
[1 (0.00% / 0.00%)] [148,466 / 22 (99.99)]
43.5mm - 44.4mm 43.5mm - 44.4mm = 1
[1 (0.00% / 0.00%)] [148,467 / 21 (99.99)]
44.5mm - 45.4mm 44.5mm - 45.4mm = 3
[3 (0.00% / 0.00%)] [148,470 / 20 (99.99)]
45.5mm - 46.4mm 45.5mm - 46.4mm = 1
[1 (0.00% / 0.00%)] [148,471 / 17 (99.99)]
46.5mm - 47.4mm 46.5mm - 47.4mm = 2
[2 (0.00% / 0.00%)] [148,473 / 16 (99.99)]
47.5mm - 48.4mm 47.5mm - 48.4mm = 2
[2 (0.00% / 0.00%)] [148,475 / 14 (99.99)]
48.5mm - 49.4mm 48.5mm - 49.4mm = 1
[1 (0.00% / 0.00%)] [148,476 / 12 (99.99)]
49.5mm - 50.4mm 49.5mm - 50.4mm = 2
[2 (0.00% / 0.00%)] [148,478 / 11 (99.99)]
52.5mm - 53.4mm 52.5mm - 53.4mm = 1
[1 (0.00% / 0.00%)] [148,479 / 9 (99.99)]
54.5mm - 55.4mm 54.5mm - 55.4mm = 1
[1 (0.00% / 0.00%)] [148,480 / 8 (100.00)]
56.5mm - 57.4mm 56.5mm - 57.4mm = 1
[1 (0.00% / 0.00%)] [148,481 / 7 (100.00)]
58.5mm - 59.4mm 58.5mm - 59.4mm = 1
[1 (0.00% / 0.00%)] [148,482 / 6 (100.00)]
60.5mm - 61.4mm 60.5mm - 61.4mm = 1
[1 (0.00% / 0.00%)] [148,483 / 5 (100.00)]
64.5mm - 65.4mm 64.5mm - 65.4mm = 1
[1 (0.00% / 0.00%)] [148,484 / 4 (100.00)]
70.5mm - 71.4mm 70.5mm - 71.4mm = 1
[1 (0.00% / 0.00%)] [148,485 / 3 (100.00)]
81.5mm - 82.4mm 81.5mm - 82.4mm = 1
[1 (0.00% / 0.00%)] [148,486 / 2 (100.00)]
83.5mm - 84.4mm 83.5mm - 84.4mm = 1
[1 (0.00% / 0.00%)] [148,487 / 1 (100.00)]

Missing observations (529 / 0.35%)

Wind Direction

Calm Calm = 278
[278 (0.19% / 0.19%)]
NNE NNE = 8,763
[8,763 (5.88% / 5.90%)]
NE NE = 20,997
[20,997 (14.09% / 14.13%)]
ENE ENE = 12,863
[12,863 (8.63% / 8.65%)]
E E = 3,640
[3,640 (2.44% / 2.45%)]
ESE ESE = 2,032
[2,032 (1.36% / 1.37%)]
SE SE = 1,904
[1,904 (1.28% / 1.28%)]
SSE SSE = 2,306
[2,306 (1.55% / 1.55%)]
S S = 6,715
[6,715 (4.51% / 4.52%)]
SSW SSW = 12,659
[12,659 (8.50% / 8.52%)]
SW SW = 21,346
[21,346 (14.32% / 14.36%)]
WSW WSW = 15,574
[15,574 (10.45% / 10.48%)]
W W = 17,868
[17,868 (11.99% / 12.02%)]
WNW WNW = 11,685
[11,685 (7.84% / 7.86%)]
NW NW = 4,345
[4,345 (2.92% / 2.92%)]
NNW NNW = 2,481
[2,481 (1.66% / 1.67%)]
N N = 3,195
[3,195 (2.14% / 2.15%)]

Missing observations (365 / 0.24%)

Wind Speed

0.0m/s - 0.4m/s 0.0m/s - 0.4m/s = 734
[734 (0.49% / 0.49%)] [734 / 148,652 (0.49)]
0.5m/s - 1.4m/s 0.5m/s - 1.4m/s = 10,111
[10,111 (6.79% / 6.80%)] [10,845 / 147,918 (7.30)]
1.5m/s - 2.4m/s 1.5m/s - 2.4m/s = 15,464
[15,464 (10.38% / 10.40%)] [26,309 / 137,807 (17.70)]
2.5m/s - 3.4m/s 2.5m/s - 3.4m/s = 17,029
[17,029 (11.43% / 11.46%)] [43,338 / 122,343 (29.15)]
3.5m/s - 4.4m/s 3.5m/s - 4.4m/s = 19,155
[19,155 (12.85% / 12.89%)] [62,493 / 105,314 (42.04)]
4.5m/s - 5.4m/s 4.5m/s - 5.4m/s = 19,111
[19,111 (12.82% / 12.86%)] [81,604 / 86,159 (54.90)]
5.5m/s - 6.4m/s 5.5m/s - 6.4m/s = 17,476
[17,476 (11.73% / 11.76%)] [99,080 / 67,048 (66.65)]
6.5m/s - 7.4m/s 6.5m/s - 7.4m/s = 14,534
[14,534 (9.75% / 9.78%)] [113,614 / 49,572 (76.43)]
7.5m/s - 8.4m/s 7.5m/s - 8.4m/s = 11,902
[11,902 (7.99% / 8.01%)] [125,516 / 35,038 (84.44)]
8.5m/s - 9.4m/s 8.5m/s - 9.4m/s = 8,617
[8,617 (5.78% / 5.80%)] [134,133 / 23,136 (90.23)]
9.5m/s - 10.4m/s 9.5m/s - 10.4m/s = 5,648
[5,648 (3.79% / 3.80%)] [139,781 / 14,519 (94.03)]
10.5m/s - 11.4m/s 10.5m/s - 11.4m/s = 3,464
[3,464 (2.32% / 2.33%)] [143,245 / 8,871 (96.36)]
11.5m/s - 12.4m/s 11.5m/s - 12.4m/s = 2,237
[2,237 (1.50% / 1.50%)] [145,482 / 5,407 (97.87)]
12.5m/s - 13.4m/s 12.5m/s - 13.4m/s = 1,311
[1,311 (0.88% / 0.88%)] [146,793 / 3,170 (98.75)]
13.5m/s - 14.4m/s 13.5m/s - 14.4m/s = 740
[740 (0.50% / 0.50%)] [147,533 / 1,859 (99.25)]
14.5m/s - 15.4m/s 14.5m/s - 15.4m/s = 435
[435 (0.29% / 0.29%)] [147,968 / 1,119 (99.54)]
15.5m/s - 16.4m/s 15.5m/s - 16.4m/s = 283
[283 (0.19% / 0.19%)] [148,251 / 684 (99.73)]
16.5m/s - 17.4m/s 16.5m/s - 17.4m/s = 174
[174 (0.12% / 0.12%)] [148,425 / 401 (99.85)]
17.5m/s - 18.4m/s 17.5m/s - 18.4m/s = 90
[90 (0.06% / 0.06%)] [148,515 / 227 (99.91)]
18.5m/s - 19.4m/s 18.5m/s - 19.4m/s = 65
[65 (0.04% / 0.04%)] [148,580 / 137 (99.95)]
19.5m/s - 20.4m/s 19.5m/s - 20.4m/s = 25
[25 (0.02% / 0.02%)] [148,605 / 72 (99.97)]
20.5m/s - 21.4m/s 20.5m/s - 21.4m/s = 20
[20 (0.01% / 0.01%)] [148,625 / 47 (99.98)]
21.5m/s - 22.4m/s 21.5m/s - 22.4m/s = 14
[14 (0.01% / 0.01%)] [148,639 / 27 (99.99)]
22.5m/s - 23.4m/s 22.5m/s - 23.4m/s = 1
[1 (0.00% / 0.00%)] [148,640 / 13 (99.99)]
23.5m/s - 24.4m/s 23.5m/s - 24.4m/s = 4
[4 (0.00% / 0.00%)] [148,644 / 12 (99.99)]
24.5m/s - 25.4m/s 24.5m/s - 25.4m/s = 3
[3 (0.00% / 0.00%)] [148,647 / 8 (100.00)]
25.5m/s - 26.4m/s 25.5m/s - 26.4m/s = 2
[2 (0.00% / 0.00%)] [148,649 / 5 (100.00)]
29.5m/s - 30.4m/s 29.5m/s - 30.4m/s = 1
[1 (0.00% / 0.00%)] [148,650 / 3 (100.00)]
30.5m/s - 31.4m/s 30.5m/s - 31.4m/s = 1
[1 (0.00% / 0.00%)] [148,651 / 2 (100.00)]
34.5m/s - 35.4m/s 34.5m/s - 35.4m/s = 1
[1 (0.00% / 0.00%)] [148,652 / 1 (100.00)]

Missing observations (364 / 0.24%)

Temperature

-0.5C - 0.4C -0.5C - 0.4C = 1
[1 (0.00% / 0.00%)] [1 / 148,660 (0.00)]
0.5C - 1.4C 0.5C - 1.4C = 3
[3 (0.00% / 0.00%)] [4 / 148,659 (0.00)]
1.5C - 2.4C 1.5C - 2.4C = 22
[22 (0.01% / 0.01%)] [26 / 148,656 (0.02)]
2.5C - 3.4C 2.5C - 3.4C = 48
[48 (0.03% / 0.03%)] [74 / 148,634 (0.05)]
3.5C - 4.4C 3.5C - 4.4C = 155
[155 (0.10% / 0.10%)] [229 / 148,586 (0.15)]
4.5C - 5.4C 4.5C - 5.4C = 363
[363 (0.24% / 0.24%)] [592 / 148,431 (0.40)]
5.5C - 6.4C 5.5C - 6.4C = 1,059
[1,059 (0.71% / 0.71%)] [1,651 / 148,068 (1.11)]
6.5C - 7.4C 6.5C - 7.4C = 1,983
[1,983 (1.33% / 1.33%)] [3,634 / 147,009 (2.44)]
7.5C - 8.4C 7.5C - 8.4C = 3,409
[3,409 (2.29% / 2.29%)] [7,043 / 145,026 (4.74)]
8.5C - 9.4C 8.5C - 9.4C = 4,913
[4,913 (3.30% / 3.30%)] [11,956 / 141,617 (8.04)]
9.5C - 10.4C 9.5C - 10.4C = 5,627
[5,627 (3.78% / 3.79%)] [17,583 / 136,704 (11.83)]
10.5C - 11.4C 10.5C - 11.4C = 6,059
[6,059 (4.07% / 4.08%)] [23,642 / 131,077 (15.90)]
11.5C - 12.4C 11.5C - 12.4C = 5,964
[5,964 (4.00% / 4.01%)] [29,606 / 125,018 (19.92)]
12.5C - 13.4C 12.5C - 13.4C = 6,038
[6,038 (4.05% / 4.06%)] [35,644 / 119,054 (23.98)]
13.5C - 14.4C 13.5C - 14.4C = 6,321
[6,321 (4.24% / 4.25%)] [41,965 / 113,016 (28.23)]
14.5C - 15.4C 14.5C - 15.4C = 6,381
[6,381 (4.28% / 4.29%)] [48,346 / 106,695 (32.52)]
15.5C - 16.4C 15.5C - 16.4C = 6,453
[6,453 (4.33% / 4.34%)] [54,799 / 100,314 (36.86)]
16.5C - 17.4C 16.5C - 17.4C = 6,788
[6,788 (4.56% / 4.57%)] [61,587 / 93,861 (41.43)]
17.5C - 18.4C 17.5C - 18.4C = 7,090
[7,090 (4.76% / 4.77%)] [68,677 / 87,073 (46.20)]
18.5C - 19.4C 18.5C - 19.4C = 7,905
[7,905 (5.30% / 5.32%)] [76,582 / 79,983 (51.51)]
19.5C - 20.4C 19.5C - 20.4C = 7,911
[7,911 (5.31% / 5.32%)] [84,493 / 72,078 (56.84)]
20.5C - 21.4C 20.5C - 21.4C = 7,964
[7,964 (5.34% / 5.36%)] [92,457 / 64,167 (62.19)]
21.5C - 22.4C 21.5C - 22.4C = 7,785
[7,785 (5.22% / 5.24%)] [100,242 / 56,203 (67.43)]
22.5C - 23.4C 22.5C - 23.4C = 7,614
[7,614 (5.11% / 5.12%)] [107,856 / 48,418 (72.55)]
23.5C - 24.4C 23.5C - 24.4C = 7,059
[7,059 (4.74% / 4.75%)] [114,915 / 40,804 (77.30)]
24.5C - 25.4C 24.5C - 25.4C = 7,569
[7,569 (5.08% / 5.09%)] [122,484 / 33,745 (82.39)]
25.5C - 26.4C 25.5C - 26.4C = 8,119
[8,119 (5.45% / 5.46%)] [130,603 / 26,176 (87.85)]
26.5C - 27.4C 26.5C - 27.4C = 7,258
[7,258 (4.87% / 4.88%)] [137,861 / 18,057 (92.74)]
27.5C - 28.4C 27.5C - 28.4C = 4,710
[4,710 (3.16% / 3.17%)] [142,571 / 10,799 (95.90)]
28.5C - 29.4C 28.5C - 29.4C = 3,353
[3,353 (2.25% / 2.26%)] [145,924 / 6,089 (98.16)]
29.5C - 30.4C 29.5C - 30.4C = 2,046
[2,046 (1.37% / 1.38%)] [147,970 / 2,736 (99.54)]
30.5C - 31.4C 30.5C - 31.4C = 587
[587 (0.39% / 0.39%)] [148,557 / 690 (99.93)]
31.5C - 32.4C 31.5C - 32.4C = 97
[97 (0.07% / 0.07%)] [148,654 / 103 (100.00)]
32.5C - 33.4C 32.5C - 33.4C = 6
[6 (0.00% / 0.00%)] [148,660 / 6 (100.00)]

Missing observations (356 / 0.24%)