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 140
Number of Observations 102,264
Period of Observations
Period Name Lat. Long. Height Anemometer
2003/01/01 -- 2016/08/99 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 = 90,826
[90,826 (88.82% / 89.08%)] [90,826 / 101,956 (89.08%)]
0.5mm - 1.4mm 0.5mm - 1.4mm = 5,203
[5,203 (5.09% / 5.10%)] [96,029 / 11,130 (94.19%)]
1.5mm - 2.4mm 1.5mm - 2.4mm = 2,018
[2,018 (1.97% / 1.98%)] [98,047 / 5,927 (96.17%)]
2.5mm - 3.4mm 2.5mm - 3.4mm = 1,105
[1,105 (1.08% / 1.08%)] [99,152 / 3,909 (97.25%)]
3.5mm - 4.4mm 3.5mm - 4.4mm = 670
[670 (0.66% / 0.66%)] [99,822 / 2,804 (97.91%)]
4.5mm - 5.4mm 4.5mm - 5.4mm = 493
[493 (0.48% / 0.48%)] [100,315 / 2,134 (98.39%)]
5.5mm - 6.4mm 5.5mm - 6.4mm = 352
[352 (0.34% / 0.35%)] [100,667 / 1,641 (98.74%)]
6.5mm - 7.4mm 6.5mm - 7.4mm = 257
[257 (0.25% / 0.25%)] [100,924 / 1,289 (98.99%)]
7.5mm - 8.4mm 7.5mm - 8.4mm = 196
[196 (0.19% / 0.19%)] [101,120 / 1,032 (99.18%)]
8.5mm - 9.4mm 8.5mm - 9.4mm = 145
[145 (0.14% / 0.14%)] [101,265 / 836 (99.32%)]
9.5mm - 10.4mm 9.5mm - 10.4mm = 96
[96 (0.09% / 0.09%)] [101,361 / 691 (99.42%)]
10.5mm - 11.4mm 10.5mm - 11.4mm = 106
[106 (0.10% / 0.10%)] [101,467 / 595 (99.52%)]
11.5mm - 12.4mm 11.5mm - 12.4mm = 75
[75 (0.07% / 0.07%)] [101,542 / 489 (99.59%)]
12.5mm - 13.4mm 12.5mm - 13.4mm = 73
[73 (0.07% / 0.07%)] [101,615 / 414 (99.67%)]
13.5mm - 14.4mm 13.5mm - 14.4mm = 41
[41 (0.04% / 0.04%)] [101,656 / 341 (99.71%)]
14.5mm - 15.4mm 14.5mm - 15.4mm = 51
[51 (0.05% / 0.05%)] [101,707 / 300 (99.76%)]
15.5mm - 16.4mm 15.5mm - 16.4mm = 37
[37 (0.04% / 0.04%)] [101,744 / 249 (99.79%)]
16.5mm - 17.4mm 16.5mm - 17.4mm = 26
[26 (0.03% / 0.03%)] [101,770 / 212 (99.82%)]
17.5mm - 18.4mm 17.5mm - 18.4mm = 24
[24 (0.02% / 0.02%)] [101,794 / 186 (99.84%)]
18.5mm - 19.4mm 18.5mm - 19.4mm = 20
[20 (0.02% / 0.02%)] [101,814 / 162 (99.86%)]
19.5mm - 20.4mm 19.5mm - 20.4mm = 24
[24 (0.02% / 0.02%)] [101,838 / 142 (99.88%)]
20.5mm - 21.4mm 20.5mm - 21.4mm = 14
[14 (0.01% / 0.01%)] [101,852 / 118 (99.90%)]
21.5mm - 22.4mm 21.5mm - 22.4mm = 11
[11 (0.01% / 0.01%)] [101,863 / 104 (99.91%)]
22.5mm - 23.4mm 22.5mm - 23.4mm = 10
[10 (0.01% / 0.01%)] [101,873 / 93 (99.92%)]
23.5mm - 24.4mm 23.5mm - 24.4mm = 9
[9 (0.01% / 0.01%)] [101,882 / 83 (99.93%)]
24.5mm - 25.4mm 24.5mm - 25.4mm = 7
[7 (0.01% / 0.01%)] [101,889 / 74 (99.93%)]
25.5mm - 26.4mm 25.5mm - 26.4mm = 11
[11 (0.01% / 0.01%)] [101,900 / 67 (99.95%)]
26.5mm - 27.4mm 26.5mm - 27.4mm = 5
[5 (0.00% / 0.00%)] [101,905 / 56 (99.95%)]
27.5mm - 28.4mm 27.5mm - 28.4mm = 7
[7 (0.01% / 0.01%)] [101,912 / 51 (99.96%)]
28.5mm - 29.4mm 28.5mm - 29.4mm = 6
[6 (0.01% / 0.01%)] [101,918 / 44 (99.96%)]
29.5mm - 30.4mm 29.5mm - 30.4mm = 3
[3 (0.00% / 0.00%)] [101,921 / 38 (99.97%)]
30.5mm - 31.4mm 30.5mm - 31.4mm = 4
[4 (0.00% / 0.00%)] [101,925 / 35 (99.97%)]
31.5mm - 32.4mm 31.5mm - 32.4mm = 3
[3 (0.00% / 0.00%)] [101,928 / 31 (99.97%)]
32.5mm - 33.4mm 32.5mm - 33.4mm = 4
[4 (0.00% / 0.00%)] [101,932 / 28 (99.98%)]
33.5mm - 34.4mm 33.5mm - 34.4mm = 1
[1 (0.00% / 0.00%)] [101,933 / 24 (99.98%)]
34.5mm - 35.4mm 34.5mm - 35.4mm = 4
[4 (0.00% / 0.00%)] [101,937 / 23 (99.98%)]
35.5mm - 36.4mm 35.5mm - 36.4mm = 2
[2 (0.00% / 0.00%)] [101,939 / 19 (99.98%)]
36.5mm - 37.4mm 36.5mm - 37.4mm = 1
[1 (0.00% / 0.00%)] [101,940 / 17 (99.98%)]
37.5mm - 38.4mm 37.5mm - 38.4mm = 2
[2 (0.00% / 0.00%)] [101,942 / 16 (99.99%)]
38.5mm - 39.4mm 38.5mm - 39.4mm = 2
[2 (0.00% / 0.00%)] [101,944 / 14 (99.99%)]
44.5mm - 45.4mm 44.5mm - 45.4mm = 2
[2 (0.00% / 0.00%)] [101,946 / 12 (99.99%)]
45.5mm - 46.4mm 45.5mm - 46.4mm = 1
[1 (0.00% / 0.00%)] [101,947 / 10 (99.99%)]
47.5mm - 48.4mm 47.5mm - 48.4mm = 2
[2 (0.00% / 0.00%)] [101,949 / 9 (99.99%)]
48.5mm - 49.4mm 48.5mm - 49.4mm = 1
[1 (0.00% / 0.00%)] [101,950 / 7 (99.99%)]
54.5mm - 55.4mm 54.5mm - 55.4mm = 1
[1 (0.00% / 0.00%)] [101,951 / 6 (100.00%)]
58.5mm - 59.4mm 58.5mm - 59.4mm = 1
[1 (0.00% / 0.00%)] [101,952 / 5 (100.00%)]
60.5mm - 61.4mm 60.5mm - 61.4mm = 1
[1 (0.00% / 0.00%)] [101,953 / 4 (100.00%)]
64.5mm - 65.4mm 64.5mm - 65.4mm = 1
[1 (0.00% / 0.00%)] [101,954 / 3 (100.00%)]
70.5mm - 71.4mm 70.5mm - 71.4mm = 1
[1 (0.00% / 0.00%)] [101,955 / 2 (100.00%)]
83.5mm - 84.4mm 83.5mm - 84.4mm = 1
[1 (0.00% / 0.00%)] [101,956 / 1 (100.00%)]

Missing observations (308 / 0.30%)

Wind Direction

Calm Calm = 186
[186 (0.18% / 0.18%)] [0 / 0 (NA)]
NNE NNE = 6,456
[6,456 (6.31% / 6.33%)] [0 / 0 (NA)]
NE NE = 15,196
[15,196 (14.86% / 14.89%)] [0 / 0 (NA)]
ENE ENE = 8,034
[8,034 (7.86% / 7.87%)] [0 / 0 (NA)]
E E = 2,240
[2,240 (2.19% / 2.20%)] [0 / 0 (NA)]
ESE ESE = 1,327
[1,327 (1.30% / 1.30%)] [0 / 0 (NA)]
SE SE = 1,254
[1,254 (1.23% / 1.23%)] [0 / 0 (NA)]
SSE SSE = 1,564
[1,564 (1.53% / 1.53%)] [0 / 0 (NA)]
S S = 4,594
[4,594 (4.49% / 4.50%)] [0 / 0 (NA)]
SSW SSW = 8,944
[8,944 (8.75% / 8.76%)] [0 / 0 (NA)]
SW SW = 14,505
[14,505 (14.18% / 14.21%)] [0 / 0 (NA)]
WSW WSW = 10,038
[10,038 (9.82% / 9.84%)] [0 / 0 (NA)]
W W = 12,745
[12,745 (12.46% / 12.49%)] [0 / 0 (NA)]
WNW WNW = 8,114
[8,114 (7.93% / 7.95%)] [0 / 0 (NA)]
NW NW = 2,953
[2,953 (2.89% / 2.89%)] [0 / 0 (NA)]
NNW NNW = 1,680
[1,680 (1.64% / 1.65%)] [0 / 0 (NA)]
N N = 2,215
[2,215 (2.17% / 2.17%)] [0 / 0 (NA)]

Missing observations (219 / 0.21%)

Wind Speed

0.0m/s - 0.4m/s 0.0m/s - 0.4m/s = 485
[485 (0.47% / 0.48%)] [485 / 102,046 (0.48%)]
0.5m/s - 1.4m/s 0.5m/s - 1.4m/s = 6,988
[6,988 (6.83% / 6.85%)] [7,473 / 101,561 (7.32%)]
1.5m/s - 2.4m/s 1.5m/s - 2.4m/s = 10,783
[10,783 (10.54% / 10.57%)] [18,256 / 94,573 (17.89%)]
2.5m/s - 3.4m/s 2.5m/s - 3.4m/s = 11,536
[11,536 (11.28% / 11.30%)] [29,792 / 83,790 (29.19%)]
3.5m/s - 4.4m/s 3.5m/s - 4.4m/s = 12,963
[12,963 (12.68% / 12.70%)] [42,755 / 72,254 (41.90%)]
4.5m/s - 5.4m/s 4.5m/s - 5.4m/s = 13,038
[13,038 (12.75% / 12.78%)] [55,793 / 59,291 (54.67%)]
5.5m/s - 6.4m/s 5.5m/s - 6.4m/s = 11,825
[11,825 (11.56% / 11.59%)] [67,618 / 46,253 (66.26%)]
6.5m/s - 7.4m/s 6.5m/s - 7.4m/s = 9,993
[9,993 (9.77% / 9.79%)] [77,611 / 34,428 (76.05%)]
7.5m/s - 8.4m/s 7.5m/s - 8.4m/s = 8,213
[8,213 (8.03% / 8.05%)] [85,824 / 24,435 (84.10%)]
8.5m/s - 9.4m/s 8.5m/s - 9.4m/s = 5,967
[5,967 (5.83% / 5.85%)] [91,791 / 16,222 (89.95%)]
9.5m/s - 10.4m/s 9.5m/s - 10.4m/s = 3,996
[3,996 (3.91% / 3.92%)] [95,787 / 10,255 (93.87%)]
10.5m/s - 11.4m/s 10.5m/s - 11.4m/s = 2,477
[2,477 (2.42% / 2.43%)] [98,264 / 6,259 (96.29%)]
11.5m/s - 12.4m/s 11.5m/s - 12.4m/s = 1,572
[1,572 (1.54% / 1.54%)] [99,836 / 3,782 (97.83%)]
12.5m/s - 13.4m/s 12.5m/s - 13.4m/s = 901
[901 (0.88% / 0.88%)] [100,737 / 2,210 (98.72%)]
13.5m/s - 14.4m/s 13.5m/s - 14.4m/s = 495
[495 (0.48% / 0.49%)] [101,232 / 1,309 (99.20%)]
14.5m/s - 15.4m/s 14.5m/s - 15.4m/s = 308
[308 (0.30% / 0.30%)] [101,540 / 814 (99.50%)]
15.5m/s - 16.4m/s 15.5m/s - 16.4m/s = 195
[195 (0.19% / 0.19%)] [101,735 / 506 (99.70%)]
16.5m/s - 17.4m/s 16.5m/s - 17.4m/s = 132
[132 (0.13% / 0.13%)] [101,867 / 311 (99.82%)]
17.5m/s - 18.4m/s 17.5m/s - 18.4m/s = 76
[76 (0.07% / 0.07%)] [101,943 / 179 (99.90%)]
18.5m/s - 19.4m/s 18.5m/s - 19.4m/s = 50
[50 (0.05% / 0.05%)] [101,993 / 103 (99.95%)]
19.5m/s - 20.4m/s 19.5m/s - 20.4m/s = 22
[22 (0.02% / 0.02%)] [102,015 / 53 (99.97%)]
20.5m/s - 21.4m/s 20.5m/s - 21.4m/s = 13
[13 (0.01% / 0.01%)] [102,028 / 31 (99.98%)]
21.5m/s - 22.4m/s 21.5m/s - 22.4m/s = 10
[10 (0.01% / 0.01%)] [102,038 / 18 (99.99%)]
22.5m/s - 23.4m/s 22.5m/s - 23.4m/s = 1
[1 (0.00% / 0.00%)] [102,039 / 8 (99.99%)]
23.5m/s - 24.4m/s 23.5m/s - 24.4m/s = 3
[3 (0.00% / 0.00%)] [102,042 / 7 (100.00%)]
24.5m/s - 25.4m/s 24.5m/s - 25.4m/s = 1
[1 (0.00% / 0.00%)] [102,043 / 4 (100.00%)]
25.5m/s - 26.4m/s 25.5m/s - 26.4m/s = 2
[2 (0.00% / 0.00%)] [102,045 / 3 (100.00%)]
29.5m/s - 30.4m/s 29.5m/s - 30.4m/s = 1
[1 (0.00% / 0.00%)] [102,046 / 1 (100.00%)]

Missing observations (218 / 0.21%)

Temperature

-0.5C - 0.4C -0.5C - 0.4C = 1
[1 (0.00% / 0.00%)] [1 / 102,056 (0.00%)]
0.5C - 1.4C 0.5C - 1.4C = 2
[2 (0.00% / 0.00%)] [3 / 102,055 (0.00%)]
1.5C - 2.4C 1.5C - 2.4C = 13
[13 (0.01% / 0.01%)] [16 / 102,053 (0.02%)]
2.5C - 3.4C 2.5C - 3.4C = 29
[29 (0.03% / 0.03%)] [45 / 102,040 (0.04%)]
3.5C - 4.4C 3.5C - 4.4C = 106
[106 (0.10% / 0.10%)] [151 / 102,011 (0.15%)]
4.5C - 5.4C 4.5C - 5.4C = 275
[275 (0.27% / 0.27%)] [426 / 101,905 (0.42%)]
5.5C - 6.4C 5.5C - 6.4C = 764
[764 (0.75% / 0.75%)] [1,190 / 101,630 (1.17%)]
6.5C - 7.4C 6.5C - 7.4C = 1,437
[1,437 (1.41% / 1.41%)] [2,627 / 100,866 (2.57%)]
7.5C - 8.4C 7.5C - 8.4C = 2,482
[2,482 (2.43% / 2.43%)] [5,109 / 99,429 (5.01%)]
8.5C - 9.4C 8.5C - 9.4C = 3,613
[3,613 (3.53% / 3.54%)] [8,722 / 96,947 (8.55%)]
9.5C - 10.4C 9.5C - 10.4C = 4,063
[4,063 (3.97% / 3.98%)] [12,785 / 93,334 (12.53%)]
10.5C - 11.4C 10.5C - 11.4C = 4,258
[4,258 (4.16% / 4.17%)] [17,043 / 89,271 (16.70%)]
11.5C - 12.4C 11.5C - 12.4C = 4,026
[4,026 (3.94% / 3.94%)] [21,069 / 85,013 (20.64%)]
12.5C - 13.4C 12.5C - 13.4C = 4,019
[4,019 (3.93% / 3.94%)] [25,088 / 80,987 (24.58%)]
13.5C - 14.4C 13.5C - 14.4C = 4,476
[4,476 (4.38% / 4.39%)] [29,564 / 76,968 (28.97%)]
14.5C - 15.4C 14.5C - 15.4C = 4,666
[4,666 (4.56% / 4.57%)] [34,230 / 72,492 (33.54%)]
15.5C - 16.4C 15.5C - 16.4C = 4,534
[4,534 (4.43% / 4.44%)] [38,764 / 67,826 (37.98%)]
16.5C - 17.4C 16.5C - 17.4C = 4,665
[4,665 (4.56% / 4.57%)] [43,429 / 63,292 (42.55%)]
17.5C - 18.4C 17.5C - 18.4C = 4,928
[4,928 (4.82% / 4.83%)] [48,357 / 58,627 (47.38%)]
18.5C - 19.4C 18.5C - 19.4C = 5,522
[5,522 (5.40% / 5.41%)] [53,879 / 53,699 (52.79%)]
19.5C - 20.4C 19.5C - 20.4C = 5,405
[5,405 (5.29% / 5.30%)] [59,284 / 48,177 (58.09%)]
20.5C - 21.4C 20.5C - 21.4C = 5,343
[5,343 (5.22% / 5.24%)] [64,627 / 42,772 (63.33%)]
21.5C - 22.4C 21.5C - 22.4C = 5,261
[5,261 (5.14% / 5.16%)] [69,888 / 37,429 (68.48%)]
22.5C - 23.4C 22.5C - 23.4C = 5,152
[5,152 (5.04% / 5.05%)] [75,040 / 32,168 (73.53%)]
23.5C - 24.4C 23.5C - 24.4C = 4,790
[4,790 (4.68% / 4.69%)] [79,830 / 27,016 (78.22%)]
24.5C - 25.4C 24.5C - 25.4C = 4,974
[4,974 (4.86% / 4.87%)] [84,804 / 22,226 (83.10%)]
25.5C - 26.4C 25.5C - 26.4C = 5,340
[5,340 (5.22% / 5.23%)] [90,144 / 17,252 (88.33%)]
26.5C - 27.4C 26.5C - 27.4C = 4,722
[4,722 (4.62% / 4.63%)] [94,866 / 11,912 (92.95%)]
27.5C - 28.4C 27.5C - 28.4C = 3,105
[3,105 (3.04% / 3.04%)] [97,971 / 7,190 (96.00%)]
28.5C - 29.4C 28.5C - 29.4C = 2,246
[2,246 (2.20% / 2.20%)] [100,217 / 4,085 (98.20%)]
29.5C - 30.4C 29.5C - 30.4C = 1,339
[1,339 (1.31% / 1.31%)] [101,556 / 1,839 (99.51%)]
30.5C - 31.4C 30.5C - 31.4C = 422
[422 (0.41% / 0.41%)] [101,978 / 500 (99.92%)]
31.5C - 32.4C 31.5C - 32.4C = 72
[72 (0.07% / 0.07%)] [102,050 / 78 (99.99%)]
32.5C - 33.4C 32.5C - 33.4C = 6
[6 (0.01% / 0.01%)] [102,056 / 6 (100.00%)]

Missing observations (208 / 0.20%)