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 128
Number of Observations 93,480
Period of Observations
Period Name Lat. Long. Height Anemometer
2003/01/01 -- 2015/08/99 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 = 83,139
[83,139 (88.94% / 89.20%)] [83,139 / 93,210 (89.20%)]
0.5mm - 1.4mm 0.5mm - 1.4mm = 4,669
[4,669 (4.99% / 5.01%)] [87,808 / 10,071 (94.20%)]
1.5mm - 2.4mm 1.5mm - 2.4mm = 1,836
[1,836 (1.96% / 1.97%)] [89,644 / 5,402 (96.17%)]
2.5mm - 3.4mm 2.5mm - 3.4mm = 995
[995 (1.06% / 1.07%)] [90,639 / 3,566 (97.24%)]
3.5mm - 4.4mm 3.5mm - 4.4mm = 605
[605 (0.65% / 0.65%)] [91,244 / 2,571 (97.89%)]
4.5mm - 5.4mm 4.5mm - 5.4mm = 457
[457 (0.49% / 0.49%)] [91,701 / 1,966 (98.38%)]
5.5mm - 6.4mm 5.5mm - 6.4mm = 333
[333 (0.36% / 0.36%)] [92,034 / 1,509 (98.74%)]
6.5mm - 7.4mm 6.5mm - 7.4mm = 236
[236 (0.25% / 0.25%)] [92,270 / 1,176 (98.99%)]
7.5mm - 8.4mm 7.5mm - 8.4mm = 178
[178 (0.19% / 0.19%)] [92,448 / 940 (99.18%)]
8.5mm - 9.4mm 8.5mm - 9.4mm = 133
[133 (0.14% / 0.14%)] [92,581 / 762 (99.33%)]
9.5mm - 10.4mm 9.5mm - 10.4mm = 89
[89 (0.10% / 0.10%)] [92,670 / 629 (99.42%)]
10.5mm - 11.4mm 10.5mm - 11.4mm = 100
[100 (0.11% / 0.11%)] [92,770 / 540 (99.53%)]
11.5mm - 12.4mm 11.5mm - 12.4mm = 69
[69 (0.07% / 0.07%)] [92,839 / 440 (99.60%)]
12.5mm - 13.4mm 12.5mm - 13.4mm = 68
[68 (0.07% / 0.07%)] [92,907 / 371 (99.67%)]
13.5mm - 14.4mm 13.5mm - 14.4mm = 38
[38 (0.04% / 0.04%)] [92,945 / 303 (99.72%)]
14.5mm - 15.4mm 14.5mm - 15.4mm = 48
[48 (0.05% / 0.05%)] [92,993 / 265 (99.77%)]
15.5mm - 16.4mm 15.5mm - 16.4mm = 33
[33 (0.04% / 0.04%)] [93,026 / 217 (99.80%)]
16.5mm - 17.4mm 16.5mm - 17.4mm = 24
[24 (0.03% / 0.03%)] [93,050 / 184 (99.83%)]
17.5mm - 18.4mm 17.5mm - 18.4mm = 21
[21 (0.02% / 0.02%)] [93,071 / 160 (99.85%)]
18.5mm - 19.4mm 18.5mm - 19.4mm = 16
[16 (0.02% / 0.02%)] [93,087 / 139 (99.87%)]
19.5mm - 20.4mm 19.5mm - 20.4mm = 21
[21 (0.02% / 0.02%)] [93,108 / 123 (99.89%)]
20.5mm - 21.4mm 20.5mm - 21.4mm = 12
[12 (0.01% / 0.01%)] [93,120 / 102 (99.90%)]
21.5mm - 22.4mm 21.5mm - 22.4mm = 11
[11 (0.01% / 0.01%)] [93,131 / 90 (99.92%)]
22.5mm - 23.4mm 22.5mm - 23.4mm = 10
[10 (0.01% / 0.01%)] [93,141 / 79 (99.93%)]
23.5mm - 24.4mm 23.5mm - 24.4mm = 7
[7 (0.01% / 0.01%)] [93,148 / 69 (99.93%)]
24.5mm - 25.4mm 24.5mm - 25.4mm = 6
[6 (0.01% / 0.01%)] [93,154 / 62 (99.94%)]
25.5mm - 26.4mm 25.5mm - 26.4mm = 9
[9 (0.01% / 0.01%)] [93,163 / 56 (99.95%)]
26.5mm - 27.4mm 26.5mm - 27.4mm = 5
[5 (0.01% / 0.01%)] [93,168 / 47 (99.95%)]
27.5mm - 28.4mm 27.5mm - 28.4mm = 6
[6 (0.01% / 0.01%)] [93,174 / 42 (99.96%)]
28.5mm - 29.4mm 28.5mm - 29.4mm = 6
[6 (0.01% / 0.01%)] [93,180 / 36 (99.97%)]
29.5mm - 30.4mm 29.5mm - 30.4mm = 2
[2 (0.00% / 0.00%)] [93,182 / 30 (99.97%)]
30.5mm - 31.4mm 30.5mm - 31.4mm = 4
[4 (0.00% / 0.00%)] [93,186 / 28 (99.97%)]
31.5mm - 32.4mm 31.5mm - 32.4mm = 2
[2 (0.00% / 0.00%)] [93,188 / 24 (99.98%)]
32.5mm - 33.4mm 32.5mm - 33.4mm = 4
[4 (0.00% / 0.00%)] [93,192 / 22 (99.98%)]
33.5mm - 34.4mm 33.5mm - 34.4mm = 1
[1 (0.00% / 0.00%)] [93,193 / 18 (99.98%)]
34.5mm - 35.4mm 34.5mm - 35.4mm = 3
[3 (0.00% / 0.00%)] [93,196 / 17 (99.98%)]
35.5mm - 36.4mm 35.5mm - 36.4mm = 1
[1 (0.00% / 0.00%)] [93,197 / 14 (99.99%)]
36.5mm - 37.4mm 36.5mm - 37.4mm = 1
[1 (0.00% / 0.00%)] [93,198 / 13 (99.99%)]
37.5mm - 38.4mm 37.5mm - 38.4mm = 2
[2 (0.00% / 0.00%)] [93,200 / 12 (99.99%)]
38.5mm - 39.4mm 38.5mm - 39.4mm = 1
[1 (0.00% / 0.00%)] [93,201 / 10 (99.99%)]
44.5mm - 45.4mm 44.5mm - 45.4mm = 2
[2 (0.00% / 0.00%)] [93,203 / 9 (99.99%)]
45.5mm - 46.4mm 45.5mm - 46.4mm = 1
[1 (0.00% / 0.00%)] [93,204 / 7 (99.99%)]
47.5mm - 48.4mm 47.5mm - 48.4mm = 1
[1 (0.00% / 0.00%)] [93,205 / 6 (99.99%)]
48.5mm - 49.4mm 48.5mm - 49.4mm = 1
[1 (0.00% / 0.00%)] [93,206 / 5 (100.00%)]
54.5mm - 55.4mm 54.5mm - 55.4mm = 1
[1 (0.00% / 0.00%)] [93,207 / 4 (100.00%)]
60.5mm - 61.4mm 60.5mm - 61.4mm = 1
[1 (0.00% / 0.00%)] [93,208 / 3 (100.00%)]
64.5mm - 65.4mm 64.5mm - 65.4mm = 1
[1 (0.00% / 0.00%)] [93,209 / 2 (100.00%)]
70.5mm - 71.4mm 70.5mm - 71.4mm = 1
[1 (0.00% / 0.00%)] [93,210 / 1 (100.00%)]

Missing observations (270 / 0.29%)

Wind Direction

Calm Calm = 174
[174 (0.19% / 0.19%)] [0 / 0 (NA)]
NNE NNE = 5,815
[5,815 (6.22% / 6.23%)] [0 / 0 (NA)]
NE NE = 13,602
[13,602 (14.55% / 14.58%)] [0 / 0 (NA)]
ENE ENE = 7,172
[7,172 (7.67% / 7.69%)] [0 / 0 (NA)]
E E = 2,000
[2,000 (2.14% / 2.14%)] [0 / 0 (NA)]
ESE ESE = 1,207
[1,207 (1.29% / 1.29%)] [0 / 0 (NA)]
SE SE = 1,159
[1,159 (1.24% / 1.24%)] [0 / 0 (NA)]
SSE SSE = 1,413
[1,413 (1.51% / 1.51%)] [0 / 0 (NA)]
S S = 4,098
[4,098 (4.38% / 4.39%)] [0 / 0 (NA)]
SSW SSW = 8,271
[8,271 (8.85% / 8.87%)] [0 / 0 (NA)]
SW SW = 13,571
[13,571 (14.52% / 14.55%)] [0 / 0 (NA)]
WSW WSW = 9,235
[9,235 (9.88% / 9.90%)] [0 / 0 (NA)]
W W = 11,677
[11,677 (12.49% / 12.52%)] [0 / 0 (NA)]
WNW WNW = 7,597
[7,597 (8.13% / 8.14%)] [0 / 0 (NA)]
NW NW = 2,722
[2,722 (2.91% / 2.92%)] [0 / 0 (NA)]
NNW NNW = 1,539
[1,539 (1.65% / 1.65%)] [0 / 0 (NA)]
N N = 2,040
[2,040 (2.18% / 2.19%)] [0 / 0 (NA)]

Missing observations (188 / 0.20%)

Wind Speed

0.0m/s - 0.4m/s 0.0m/s - 0.4m/s = 431
[431 (0.46% / 0.46%)] [431 / 93,293 (0.46%)]
0.5m/s - 1.4m/s 0.5m/s - 1.4m/s = 6,256
[6,256 (6.69% / 6.71%)] [6,687 / 92,862 (7.17%)]
1.5m/s - 2.4m/s 1.5m/s - 2.4m/s = 9,885
[9,885 (10.57% / 10.60%)] [16,572 / 86,606 (17.76%)]
2.5m/s - 3.4m/s 2.5m/s - 3.4m/s = 10,564
[10,564 (11.30% / 11.32%)] [27,136 / 76,721 (29.09%)]
3.5m/s - 4.4m/s 3.5m/s - 4.4m/s = 11,875
[11,875 (12.70% / 12.73%)] [39,011 / 66,157 (41.82%)]
4.5m/s - 5.4m/s 4.5m/s - 5.4m/s = 11,819
[11,819 (12.64% / 12.67%)] [50,830 / 54,282 (54.48%)]
5.5m/s - 6.4m/s 5.5m/s - 6.4m/s = 10,754
[10,754 (11.50% / 11.53%)] [61,584 / 42,463 (66.01%)]
6.5m/s - 7.4m/s 6.5m/s - 7.4m/s = 9,161
[9,161 (9.80% / 9.82%)] [70,745 / 31,709 (75.83%)]
7.5m/s - 8.4m/s 7.5m/s - 8.4m/s = 7,554
[7,554 (8.08% / 8.10%)] [78,299 / 22,548 (83.93%)]
8.5m/s - 9.4m/s 8.5m/s - 9.4m/s = 5,530
[5,530 (5.92% / 5.93%)] [83,829 / 14,994 (89.86%)]
9.5m/s - 10.4m/s 9.5m/s - 10.4m/s = 3,663
[3,663 (3.92% / 3.93%)] [87,492 / 9,464 (93.78%)]
10.5m/s - 11.4m/s 10.5m/s - 11.4m/s = 2,266
[2,266 (2.42% / 2.43%)] [89,758 / 5,801 (96.21%)]
11.5m/s - 12.4m/s 11.5m/s - 12.4m/s = 1,459
[1,459 (1.56% / 1.56%)] [91,217 / 3,535 (97.77%)]
12.5m/s - 13.4m/s 12.5m/s - 13.4m/s = 827
[827 (0.88% / 0.89%)] [92,044 / 2,076 (98.66%)]
13.5m/s - 14.4m/s 13.5m/s - 14.4m/s = 464
[464 (0.50% / 0.50%)] [92,508 / 1,249 (99.16%)]
14.5m/s - 15.4m/s 14.5m/s - 15.4m/s = 292
[292 (0.31% / 0.31%)] [92,800 / 785 (99.47%)]
15.5m/s - 16.4m/s 15.5m/s - 16.4m/s = 187
[187 (0.20% / 0.20%)] [92,987 / 493 (99.67%)]
16.5m/s - 17.4m/s 16.5m/s - 17.4m/s = 130
[130 (0.14% / 0.14%)] [93,117 / 306 (99.81%)]
17.5m/s - 18.4m/s 17.5m/s - 18.4m/s = 74
[74 (0.08% / 0.08%)] [93,191 / 176 (99.89%)]
18.5m/s - 19.4m/s 18.5m/s - 19.4m/s = 50
[50 (0.05% / 0.05%)] [93,241 / 102 (99.94%)]
19.5m/s - 20.4m/s 19.5m/s - 20.4m/s = 22
[22 (0.02% / 0.02%)] [93,263 / 52 (99.97%)]
20.5m/s - 21.4m/s 20.5m/s - 21.4m/s = 12
[12 (0.01% / 0.01%)] [93,275 / 30 (99.98%)]
21.5m/s - 22.4m/s 21.5m/s - 22.4m/s = 10
[10 (0.01% / 0.01%)] [93,285 / 18 (99.99%)]
22.5m/s - 23.4m/s 22.5m/s - 23.4m/s = 1
[1 (0.00% / 0.00%)] [93,286 / 8 (99.99%)]
23.5m/s - 24.4m/s 23.5m/s - 24.4m/s = 3
[3 (0.00% / 0.00%)] [93,289 / 7 (100.00%)]
24.5m/s - 25.4m/s 24.5m/s - 25.4m/s = 1
[1 (0.00% / 0.00%)] [93,290 / 4 (100.00%)]
25.5m/s - 26.4m/s 25.5m/s - 26.4m/s = 2
[2 (0.00% / 0.00%)] [93,292 / 3 (100.00%)]
29.5m/s - 30.4m/s 29.5m/s - 30.4m/s = 1
[1 (0.00% / 0.00%)] [93,293 / 1 (100.00%)]

Missing observations (187 / 0.20%)

Temperature

-0.5C - 0.4C -0.5C - 0.4C = 1
[1 (0.00% / 0.00%)] [1 / 93,306 (0.00%)]
0.5C - 1.4C 0.5C - 1.4C = 2
[2 (0.00% / 0.00%)] [3 / 93,305 (0.00%)]
1.5C - 2.4C 1.5C - 2.4C = 12
[12 (0.01% / 0.01%)] [15 / 93,303 (0.02%)]
2.5C - 3.4C 2.5C - 3.4C = 23
[23 (0.02% / 0.02%)] [38 / 93,291 (0.04%)]
3.5C - 4.4C 3.5C - 4.4C = 90
[90 (0.10% / 0.10%)] [128 / 93,268 (0.14%)]
4.5C - 5.4C 4.5C - 5.4C = 260
[260 (0.28% / 0.28%)] [388 / 93,178 (0.42%)]
5.5C - 6.4C 5.5C - 6.4C = 735
[735 (0.79% / 0.79%)] [1,123 / 92,918 (1.20%)]
6.5C - 7.4C 6.5C - 7.4C = 1,381
[1,381 (1.48% / 1.48%)] [2,504 / 92,183 (2.68%)]
7.5C - 8.4C 7.5C - 8.4C = 2,382
[2,382 (2.55% / 2.55%)] [4,886 / 90,802 (5.24%)]
8.5C - 9.4C 8.5C - 9.4C = 3,405
[3,405 (3.64% / 3.65%)] [8,291 / 88,420 (8.89%)]
9.5C - 10.4C 9.5C - 10.4C = 3,768
[3,768 (4.03% / 4.04%)] [12,059 / 85,015 (12.92%)]
10.5C - 11.4C 10.5C - 11.4C = 3,902
[3,902 (4.17% / 4.18%)] [15,961 / 81,247 (17.11%)]
11.5C - 12.4C 11.5C - 12.4C = 3,648
[3,648 (3.90% / 3.91%)] [19,609 / 77,345 (21.02%)]
12.5C - 13.4C 12.5C - 13.4C = 3,715
[3,715 (3.97% / 3.98%)] [23,324 / 73,697 (25.00%)]
13.5C - 14.4C 13.5C - 14.4C = 4,092
[4,092 (4.38% / 4.39%)] [27,416 / 69,982 (29.38%)]
14.5C - 15.4C 14.5C - 15.4C = 4,343
[4,343 (4.65% / 4.65%)] [31,759 / 65,890 (34.04%)]
15.5C - 16.4C 15.5C - 16.4C = 4,159
[4,159 (4.45% / 4.46%)] [35,918 / 61,547 (38.49%)]
16.5C - 17.4C 16.5C - 17.4C = 4,269
[4,269 (4.57% / 4.58%)] [40,187 / 57,388 (43.07%)]
17.5C - 18.4C 17.5C - 18.4C = 4,446
[4,446 (4.76% / 4.76%)] [44,633 / 53,119 (47.84%)]
18.5C - 19.4C 18.5C - 19.4C = 4,888
[4,888 (5.23% / 5.24%)] [49,521 / 48,673 (53.07%)]
19.5C - 20.4C 19.5C - 20.4C = 4,722
[4,722 (5.05% / 5.06%)] [54,243 / 43,785 (58.13%)]
20.5C - 21.4C 20.5C - 21.4C = 4,816
[4,816 (5.15% / 5.16%)] [59,059 / 39,063 (63.30%)]
21.5C - 22.4C 21.5C - 22.4C = 4,754
[4,754 (5.09% / 5.10%)] [63,813 / 34,247 (68.39%)]
22.5C - 23.4C 22.5C - 23.4C = 4,668
[4,668 (4.99% / 5.00%)] [68,481 / 29,493 (73.39%)]
23.5C - 24.4C 23.5C - 24.4C = 4,332
[4,332 (4.63% / 4.64%)] [72,813 / 24,825 (78.04%)]
24.5C - 25.4C 24.5C - 25.4C = 4,475
[4,475 (4.79% / 4.80%)] [77,288 / 20,493 (82.83%)]
25.5C - 26.4C 25.5C - 26.4C = 4,926
[4,926 (5.27% / 5.28%)] [82,214 / 16,018 (88.11%)]
26.5C - 27.4C 26.5C - 27.4C = 4,369
[4,369 (4.67% / 4.68%)] [86,583 / 11,092 (92.79%)]
27.5C - 28.4C 27.5C - 28.4C = 2,871
[2,871 (3.07% / 3.08%)] [89,454 / 6,723 (95.87%)]
28.5C - 29.4C 28.5C - 29.4C = 2,086
[2,086 (2.23% / 2.24%)] [91,540 / 3,852 (98.11%)]
29.5C - 30.4C 29.5C - 30.4C = 1,282
[1,282 (1.37% / 1.37%)] [92,822 / 1,766 (99.48%)]
30.5C - 31.4C 30.5C - 31.4C = 407
[407 (0.44% / 0.44%)] [93,229 / 484 (99.92%)]
31.5C - 32.4C 31.5C - 32.4C = 71
[71 (0.08% / 0.08%)] [93,300 / 77 (99.99%)]
32.5C - 33.4C 32.5C - 33.4C = 6
[6 (0.01% / 0.01%)] [93,306 / 6 (100.00%)]

Missing observations (174 / 0.19%)