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 201
Number of Observations 146,798
Period of Observations
Period Name Lat. Long. Height Anemometer
2003/01/01 -- 2019/09/99 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 = 130,500
[130,500 (88.90% / 89.21%)] [130,500 / 146,289 (89.21)]
0.5mm - 1.4mm 0.5mm - 1.4mm = 7,218
[7,218 (4.92% / 4.93%)] [137,718 / 15,789 (94.14)]
1.5mm - 2.4mm 1.5mm - 2.4mm = 2,854
[2,854 (1.94% / 1.95%)] [140,572 / 8,571 (96.09)]
2.5mm - 3.4mm 2.5mm - 3.4mm = 1,566
[1,566 (1.07% / 1.07%)] [142,138 / 5,717 (97.16)]
3.5mm - 4.4mm 3.5mm - 4.4mm = 998
[998 (0.68% / 0.68%)] [143,136 / 4,151 (97.84)]
4.5mm - 5.4mm 4.5mm - 5.4mm = 727
[727 (0.50% / 0.50%)] [143,863 / 3,153 (98.34)]
5.5mm - 6.4mm 5.5mm - 6.4mm = 518
[518 (0.35% / 0.35%)] [144,381 / 2,426 (98.70)]
6.5mm - 7.4mm 6.5mm - 7.4mm = 376
[376 (0.26% / 0.26%)] [144,757 / 1,908 (98.95)]
7.5mm - 8.4mm 7.5mm - 8.4mm = 302
[302 (0.21% / 0.21%)] [145,059 / 1,532 (99.16)]
8.5mm - 9.4mm 8.5mm - 9.4mm = 216
[216 (0.15% / 0.15%)] [145,275 / 1,230 (99.31)]
9.5mm - 10.4mm 9.5mm - 10.4mm = 142
[142 (0.10% / 0.10%)] [145,417 / 1,014 (99.40)]
10.5mm - 11.4mm 10.5mm - 11.4mm = 164
[164 (0.11% / 0.11%)] [145,581 / 872 (99.52)]
11.5mm - 12.4mm 11.5mm - 12.4mm = 112
[112 (0.08% / 0.08%)] [145,693 / 708 (99.59)]
12.5mm - 13.4mm 12.5mm - 13.4mm = 97
[97 (0.07% / 0.07%)] [145,790 / 596 (99.66)]
13.5mm - 14.4mm 13.5mm - 14.4mm = 73
[73 (0.05% / 0.05%)] [145,863 / 499 (99.71)]
14.5mm - 15.4mm 14.5mm - 15.4mm = 62
[62 (0.04% / 0.04%)] [145,925 / 426 (99.75)]
15.5mm - 16.4mm 15.5mm - 16.4mm = 54
[54 (0.04% / 0.04%)] [145,979 / 364 (99.79)]
16.5mm - 17.4mm 16.5mm - 17.4mm = 37
[37 (0.03% / 0.03%)] [146,016 / 310 (99.81)]
17.5mm - 18.4mm 17.5mm - 18.4mm = 38
[38 (0.03% / 0.03%)] [146,054 / 273 (99.84)]
18.5mm - 19.4mm 18.5mm - 19.4mm = 27
[27 (0.02% / 0.02%)] [146,081 / 235 (99.86)]
19.5mm - 20.4mm 19.5mm - 20.4mm = 31
[31 (0.02% / 0.02%)] [146,112 / 208 (99.88)]
20.5mm - 21.4mm 20.5mm - 21.4mm = 21
[21 (0.01% / 0.01%)] [146,133 / 177 (99.89)]
21.5mm - 22.4mm 21.5mm - 22.4mm = 16
[16 (0.01% / 0.01%)] [146,149 / 156 (99.90)]
22.5mm - 23.4mm 22.5mm - 23.4mm = 16
[16 (0.01% / 0.01%)] [146,165 / 140 (99.92)]
23.5mm - 24.4mm 23.5mm - 24.4mm = 12
[12 (0.01% / 0.01%)] [146,177 / 124 (99.92)]
24.5mm - 25.4mm 24.5mm - 25.4mm = 10
[10 (0.01% / 0.01%)] [146,187 / 112 (99.93)]
25.5mm - 26.4mm 25.5mm - 26.4mm = 13
[13 (0.01% / 0.01%)] [146,200 / 102 (99.94)]
26.5mm - 27.4mm 26.5mm - 27.4mm = 6
[6 (0.00% / 0.00%)] [146,206 / 89 (99.94)]
27.5mm - 28.4mm 27.5mm - 28.4mm = 8
[8 (0.01% / 0.01%)] [146,214 / 83 (99.95)]
28.5mm - 29.4mm 28.5mm - 29.4mm = 10
[10 (0.01% / 0.01%)] [146,224 / 75 (99.96)]
29.5mm - 30.4mm 29.5mm - 30.4mm = 7
[7 (0.00% / 0.00%)] [146,231 / 65 (99.96)]
30.5mm - 31.4mm 30.5mm - 31.4mm = 4
[4 (0.00% / 0.00%)] [146,235 / 58 (99.96)]
31.5mm - 32.4mm 31.5mm - 32.4mm = 7
[7 (0.00% / 0.00%)] [146,242 / 54 (99.97)]
32.5mm - 33.4mm 32.5mm - 33.4mm = 8
[8 (0.01% / 0.01%)] [146,250 / 47 (99.97)]
33.5mm - 34.4mm 33.5mm - 34.4mm = 1
[1 (0.00% / 0.00%)] [146,251 / 39 (99.97)]
34.5mm - 35.4mm 34.5mm - 35.4mm = 6
[6 (0.00% / 0.00%)] [146,257 / 38 (99.98)]
35.5mm - 36.4mm 35.5mm - 36.4mm = 4
[4 (0.00% / 0.00%)] [146,261 / 32 (99.98)]
36.5mm - 37.4mm 36.5mm - 37.4mm = 1
[1 (0.00% / 0.00%)] [146,262 / 28 (99.98)]
37.5mm - 38.4mm 37.5mm - 38.4mm = 3
[3 (0.00% / 0.00%)] [146,265 / 27 (99.98)]
38.5mm - 39.4mm 38.5mm - 39.4mm = 2
[2 (0.00% / 0.00%)] [146,267 / 24 (99.98)]
41.5mm - 42.4mm 41.5mm - 42.4mm = 1
[1 (0.00% / 0.00%)] [146,268 / 22 (99.99)]
43.5mm - 44.4mm 43.5mm - 44.4mm = 1
[1 (0.00% / 0.00%)] [146,269 / 21 (99.99)]
44.5mm - 45.4mm 44.5mm - 45.4mm = 3
[3 (0.00% / 0.00%)] [146,272 / 20 (99.99)]
45.5mm - 46.4mm 45.5mm - 46.4mm = 1
[1 (0.00% / 0.00%)] [146,273 / 17 (99.99)]
46.5mm - 47.4mm 46.5mm - 47.4mm = 2
[2 (0.00% / 0.00%)] [146,275 / 16 (99.99)]
47.5mm - 48.4mm 47.5mm - 48.4mm = 2
[2 (0.00% / 0.00%)] [146,277 / 14 (99.99)]
48.5mm - 49.4mm 48.5mm - 49.4mm = 1
[1 (0.00% / 0.00%)] [146,278 / 12 (99.99)]
49.5mm - 50.4mm 49.5mm - 50.4mm = 2
[2 (0.00% / 0.00%)] [146,280 / 11 (99.99)]
52.5mm - 53.4mm 52.5mm - 53.4mm = 1
[1 (0.00% / 0.00%)] [146,281 / 9 (99.99)]
54.5mm - 55.4mm 54.5mm - 55.4mm = 1
[1 (0.00% / 0.00%)] [146,282 / 8 (100.00)]
56.5mm - 57.4mm 56.5mm - 57.4mm = 1
[1 (0.00% / 0.00%)] [146,283 / 7 (100.00)]
58.5mm - 59.4mm 58.5mm - 59.4mm = 1
[1 (0.00% / 0.00%)] [146,284 / 6 (100.00)]
60.5mm - 61.4mm 60.5mm - 61.4mm = 1
[1 (0.00% / 0.00%)] [146,285 / 5 (100.00)]
64.5mm - 65.4mm 64.5mm - 65.4mm = 1
[1 (0.00% / 0.00%)] [146,286 / 4 (100.00)]
70.5mm - 71.4mm 70.5mm - 71.4mm = 1
[1 (0.00% / 0.00%)] [146,287 / 3 (100.00)]
81.5mm - 82.4mm 81.5mm - 82.4mm = 1
[1 (0.00% / 0.00%)] [146,288 / 2 (100.00)]
83.5mm - 84.4mm 83.5mm - 84.4mm = 1
[1 (0.00% / 0.00%)] [146,289 / 1 (100.00)]

Missing observations (509 / 0.35%)

Wind Direction

Calm Calm = 264
[264 (0.18% / 0.18%)]
NNE NNE = 8,674
[8,674 (5.91% / 5.92%)]
NE NE = 20,723
[20,723 (14.12% / 14.15%)]
ENE ENE = 12,497
[12,497 (8.51% / 8.53%)]
E E = 3,533
[3,533 (2.41% / 2.41%)]
ESE ESE = 1,987
[1,987 (1.35% / 1.36%)]
SE SE = 1,863
[1,863 (1.27% / 1.27%)]
SSE SSE = 2,253
[2,253 (1.53% / 1.54%)]
S S = 6,632
[6,632 (4.52% / 4.53%)]
SSW SSW = 12,572
[12,572 (8.56% / 8.59%)]
SW SW = 21,140
[21,140 (14.40% / 14.44%)]
WSW WSW = 15,345
[15,345 (10.45% / 10.48%)]
W W = 17,655
[17,655 (12.03% / 12.06%)]
WNW WNW = 11,457
[11,457 (7.80% / 7.82%)]
NW NW = 4,270
[4,270 (2.91% / 2.92%)]
NNW NNW = 2,432
[2,432 (1.66% / 1.66%)]
N N = 3,142
[3,142 (2.14% / 2.15%)]

Missing observations (359 / 0.24%)

Wind Speed

0.0m/s - 0.4m/s 0.0m/s - 0.4m/s = 703
[703 (0.48% / 0.48%)] [703 / 146,440 (0.48)]
0.5m/s - 1.4m/s 0.5m/s - 1.4m/s = 9,894
[9,894 (6.74% / 6.76%)] [10,597 / 145,737 (7.24)]
1.5m/s - 2.4m/s 1.5m/s - 2.4m/s = 15,244
[15,244 (10.38% / 10.41%)] [25,841 / 135,843 (17.65)]
2.5m/s - 3.4m/s 2.5m/s - 3.4m/s = 16,776
[16,776 (11.43% / 11.46%)] [42,617 / 120,599 (29.10)]
3.5m/s - 4.4m/s 3.5m/s - 4.4m/s = 18,895
[18,895 (12.87% / 12.90%)] [61,512 / 103,823 (42.00)]
4.5m/s - 5.4m/s 4.5m/s - 5.4m/s = 18,809
[18,809 (12.81% / 12.84%)] [80,321 / 84,928 (54.85)]
5.5m/s - 6.4m/s 5.5m/s - 6.4m/s = 17,213
[17,213 (11.73% / 11.75%)] [97,534 / 66,119 (66.60)]
6.5m/s - 7.4m/s 6.5m/s - 7.4m/s = 14,328
[14,328 (9.76% / 9.78%)] [111,862 / 48,906 (76.39)]
7.5m/s - 8.4m/s 7.5m/s - 8.4m/s = 11,767
[11,767 (8.02% / 8.04%)] [123,629 / 34,578 (84.42)]
8.5m/s - 9.4m/s 8.5m/s - 9.4m/s = 8,507
[8,507 (5.80% / 5.81%)] [132,136 / 22,811 (90.23)]
9.5m/s - 10.4m/s 9.5m/s - 10.4m/s = 5,570
[5,570 (3.79% / 3.80%)] [137,706 / 14,304 (94.04)]
10.5m/s - 11.4m/s 10.5m/s - 11.4m/s = 3,417
[3,417 (2.33% / 2.33%)] [141,123 / 8,734 (96.37)]
11.5m/s - 12.4m/s 11.5m/s - 12.4m/s = 2,196
[2,196 (1.50% / 1.50%)] [143,319 / 5,317 (97.87)]
12.5m/s - 13.4m/s 12.5m/s - 13.4m/s = 1,294
[1,294 (0.88% / 0.88%)] [144,613 / 3,121 (98.75)]
13.5m/s - 14.4m/s 13.5m/s - 14.4m/s = 724
[724 (0.49% / 0.49%)] [145,337 / 1,827 (99.25)]
14.5m/s - 15.4m/s 14.5m/s - 15.4m/s = 429
[429 (0.29% / 0.29%)] [145,766 / 1,103 (99.54)]
15.5m/s - 16.4m/s 15.5m/s - 16.4m/s = 278
[278 (0.19% / 0.19%)] [146,044 / 674 (99.73)]
16.5m/s - 17.4m/s 16.5m/s - 17.4m/s = 170
[170 (0.12% / 0.12%)] [146,214 / 396 (99.85)]
17.5m/s - 18.4m/s 17.5m/s - 18.4m/s = 89
[89 (0.06% / 0.06%)] [146,303 / 226 (99.91)]
18.5m/s - 19.4m/s 18.5m/s - 19.4m/s = 65
[65 (0.04% / 0.04%)] [146,368 / 137 (99.95)]
19.5m/s - 20.4m/s 19.5m/s - 20.4m/s = 25
[25 (0.02% / 0.02%)] [146,393 / 72 (99.97)]
20.5m/s - 21.4m/s 20.5m/s - 21.4m/s = 20
[20 (0.01% / 0.01%)] [146,413 / 47 (99.98)]
21.5m/s - 22.4m/s 21.5m/s - 22.4m/s = 14
[14 (0.01% / 0.01%)] [146,427 / 27 (99.99)]
22.5m/s - 23.4m/s 22.5m/s - 23.4m/s = 1
[1 (0.00% / 0.00%)] [146,428 / 13 (99.99)]
23.5m/s - 24.4m/s 23.5m/s - 24.4m/s = 4
[4 (0.00% / 0.00%)] [146,432 / 12 (99.99)]
24.5m/s - 25.4m/s 24.5m/s - 25.4m/s = 3
[3 (0.00% / 0.00%)] [146,435 / 8 (100.00)]
25.5m/s - 26.4m/s 25.5m/s - 26.4m/s = 2
[2 (0.00% / 0.00%)] [146,437 / 5 (100.00)]
29.5m/s - 30.4m/s 29.5m/s - 30.4m/s = 1
[1 (0.00% / 0.00%)] [146,438 / 3 (100.00)]
30.5m/s - 31.4m/s 30.5m/s - 31.4m/s = 1
[1 (0.00% / 0.00%)] [146,439 / 2 (100.00)]
34.5m/s - 35.4m/s 34.5m/s - 35.4m/s = 1
[1 (0.00% / 0.00%)] [146,440 / 1 (100.00)]

Missing observations (358 / 0.24%)

Temperature

-0.5C - 0.4C -0.5C - 0.4C = 1
[1 (0.00% / 0.00%)] [1 / 146,448 (0.00)]
0.5C - 1.4C 0.5C - 1.4C = 3
[3 (0.00% / 0.00%)] [4 / 146,447 (0.00)]
1.5C - 2.4C 1.5C - 2.4C = 22
[22 (0.01% / 0.02%)] [26 / 146,444 (0.02)]
2.5C - 3.4C 2.5C - 3.4C = 48
[48 (0.03% / 0.03%)] [74 / 146,422 (0.05)]
3.5C - 4.4C 3.5C - 4.4C = 155
[155 (0.11% / 0.11%)] [229 / 146,374 (0.16)]
4.5C - 5.4C 4.5C - 5.4C = 363
[363 (0.25% / 0.25%)] [592 / 146,219 (0.40)]
5.5C - 6.4C 5.5C - 6.4C = 1,059
[1,059 (0.72% / 0.72%)] [1,651 / 145,856 (1.13)]
6.5C - 7.4C 6.5C - 7.4C = 1,983
[1,983 (1.35% / 1.35%)] [3,634 / 144,797 (2.48)]
7.5C - 8.4C 7.5C - 8.4C = 3,408
[3,408 (2.32% / 2.33%)] [7,042 / 142,814 (4.81)]
8.5C - 9.4C 8.5C - 9.4C = 4,910
[4,910 (3.34% / 3.35%)] [11,952 / 139,406 (8.16)]
9.5C - 10.4C 9.5C - 10.4C = 5,615
[5,615 (3.82% / 3.83%)] [17,567 / 134,496 (12.00)]
10.5C - 11.4C 10.5C - 11.4C = 6,010
[6,010 (4.09% / 4.10%)] [23,577 / 128,881 (16.10)]
11.5C - 12.4C 11.5C - 12.4C = 5,890
[5,890 (4.01% / 4.02%)] [29,467 / 122,871 (20.12)]
12.5C - 13.4C 12.5C - 13.4C = 5,909
[5,909 (4.03% / 4.03%)] [35,376 / 116,981 (24.16)]
13.5C - 14.4C 13.5C - 14.4C = 6,180
[6,180 (4.21% / 4.22%)] [41,556 / 111,072 (28.38)]
14.5C - 15.4C 14.5C - 15.4C = 6,236
[6,236 (4.25% / 4.26%)] [47,792 / 104,892 (32.63)]
15.5C - 16.4C 15.5C - 16.4C = 6,312
[6,312 (4.30% / 4.31%)] [54,104 / 98,656 (36.94)]
16.5C - 17.4C 16.5C - 17.4C = 6,626
[6,626 (4.51% / 4.52%)] [60,730 / 92,344 (41.47)]
17.5C - 18.4C 17.5C - 18.4C = 6,936
[6,936 (4.72% / 4.74%)] [67,666 / 85,718 (46.20)]
18.5C - 19.4C 18.5C - 19.4C = 7,731
[7,731 (5.27% / 5.28%)] [75,397 / 78,782 (51.48)]
19.5C - 20.4C 19.5C - 20.4C = 7,726
[7,726 (5.26% / 5.28%)] [83,123 / 71,051 (56.76)]
20.5C - 21.4C 20.5C - 21.4C = 7,796
[7,796 (5.31% / 5.32%)] [90,919 / 63,325 (62.08)]
21.5C - 22.4C 21.5C - 22.4C = 7,618
[7,618 (5.19% / 5.20%)] [98,537 / 55,529 (67.28)]
22.5C - 23.4C 22.5C - 23.4C = 7,484
[7,484 (5.10% / 5.11%)] [106,021 / 47,911 (72.39)]
23.5C - 24.4C 23.5C - 24.4C = 6,921
[6,921 (4.71% / 4.73%)] [112,942 / 40,427 (77.12)]
24.5C - 25.4C 24.5C - 25.4C = 7,461
[7,461 (5.08% / 5.09%)] [120,403 / 33,506 (82.22)]
25.5C - 26.4C 25.5C - 26.4C = 8,041
[8,041 (5.48% / 5.49%)] [128,444 / 26,045 (87.71)]
26.5C - 27.4C 26.5C - 27.4C = 7,211
[7,211 (4.91% / 4.92%)] [135,655 / 18,004 (92.63)]
27.5C - 28.4C 27.5C - 28.4C = 4,704
[4,704 (3.20% / 3.21%)] [140,359 / 10,793 (95.84)]
28.5C - 29.4C 28.5C - 29.4C = 3,353
[3,353 (2.28% / 2.29%)] [143,712 / 6,089 (98.13)]
29.5C - 30.4C 29.5C - 30.4C = 2,046
[2,046 (1.39% / 1.40%)] [145,758 / 2,736 (99.53)]
30.5C - 31.4C 30.5C - 31.4C = 587
[587 (0.40% / 0.40%)] [146,345 / 690 (99.93)]
31.5C - 32.4C 31.5C - 32.4C = 97
[97 (0.07% / 0.07%)] [146,442 / 103 (100.00)]
32.5C - 33.4C 32.5C - 33.4C = 6
[6 (0.00% / 0.00%)] [146,448 / 6 (100.00)]

Missing observations (350 / 0.24%)