Station Number 31001
Prefecture Aomori [ Local Portal ]
Location 青森県下北郡大間町大間字狼丁 (SHIMOKITA GUN OMA MACHI, AOMORI KEN)
Months of Observations 474
Number of Observations 345,540
Period of Observations
Period Name Lat. Long. Height Anemometer
1975/05/24 -- 1976/11/23 OMA 41.527N 140.912E 14m 0.0m
1976/11/24 -- 1983/09/29 OMA 41.527N 140.912E 14m 6.5m
1983/09/30 -- 1986/04/23 OMA 41.527N 140.912E 14m 6.5m
1986/04/24 -- 1997/10/28 OMA 41.527N 140.912E 14m 6.5m
1997/10/29 -- 2006/10/12 OMA 41.527N 140.912E 14m 6.5m
2006/10/13 -- 2015/08/99 OMA 41.527N 140.912E 14m 10.0m
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
31900 OMA (Aomori) 0.00km 0deg.
23286 SHIOKUBI (Hokkaido) 21.39km 7deg.
23291 TOITOMARI (Hokkaido) 22.42km 19deg.
31036 YUNOKAWA (Aomori) 24.06km 170deg.
23281 TAKAMATSU (Hokkaido) 28.01km 344deg.
23930 TAKAMATSU (Hokkaido) 28.01km 344deg.

Statistics for the Whole Period

Precipitation

0.0mm - 0.4mm 0.0mm - 0.4mm = 322,275
[322,275 (93.27% / 93.58%)] [322,275 / 344,384 (93.58%)]
0.5mm - 1.4mm 0.5mm - 1.4mm = 12,783
[12,783 (3.70% / 3.71%)] [335,058 / 22,109 (97.29%)]
1.5mm - 2.4mm 1.5mm - 2.4mm = 4,171
[4,171 (1.21% / 1.21%)] [339,229 / 9,326 (98.50%)]
2.5mm - 3.4mm 2.5mm - 3.4mm = 2,060
[2,060 (0.60% / 0.60%)] [341,289 / 5,155 (99.10%)]
3.5mm - 4.4mm 3.5mm - 4.4mm = 1,113
[1,113 (0.32% / 0.32%)] [342,402 / 3,095 (99.42%)]
4.5mm - 5.4mm 4.5mm - 5.4mm = 648
[648 (0.19% / 0.19%)] [343,050 / 1,982 (99.61%)]
5.5mm - 6.4mm 5.5mm - 6.4mm = 410
[410 (0.12% / 0.12%)] [343,460 / 1,334 (99.73%)]
6.5mm - 7.4mm 6.5mm - 7.4mm = 260
[260 (0.08% / 0.08%)] [343,720 / 924 (99.81%)]
7.5mm - 8.4mm 7.5mm - 8.4mm = 189
[189 (0.05% / 0.05%)] [343,909 / 664 (99.86%)]
8.5mm - 9.4mm 8.5mm - 9.4mm = 103
[103 (0.03% / 0.03%)] [344,012 / 475 (99.89%)]
9.5mm - 10.4mm 9.5mm - 10.4mm = 89
[89 (0.03% / 0.03%)] [344,101 / 372 (99.92%)]
10.5mm - 11.4mm 10.5mm - 11.4mm = 50
[50 (0.01% / 0.01%)] [344,151 / 283 (99.93%)]
11.5mm - 12.4mm 11.5mm - 12.4mm = 45
[45 (0.01% / 0.01%)] [344,196 / 233 (99.95%)]
12.5mm - 13.4mm 12.5mm - 13.4mm = 42
[42 (0.01% / 0.01%)] [344,238 / 188 (99.96%)]
13.5mm - 14.4mm 13.5mm - 14.4mm = 15
[15 (0.00% / 0.00%)] [344,253 / 146 (99.96%)]
14.5mm - 15.4mm 14.5mm - 15.4mm = 21
[21 (0.01% / 0.01%)] [344,274 / 131 (99.97%)]
15.5mm - 16.4mm 15.5mm - 16.4mm = 26
[26 (0.01% / 0.01%)] [344,300 / 110 (99.98%)]
16.5mm - 17.4mm 16.5mm - 17.4mm = 11
[11 (0.00% / 0.00%)] [344,311 / 84 (99.98%)]
17.5mm - 18.4mm 17.5mm - 18.4mm = 10
[10 (0.00% / 0.00%)] [344,321 / 73 (99.98%)]
18.5mm - 19.4mm 18.5mm - 19.4mm = 14
[14 (0.00% / 0.00%)] [344,335 / 63 (99.99%)]
19.5mm - 20.4mm 19.5mm - 20.4mm = 8
[8 (0.00% / 0.00%)] [344,343 / 49 (99.99%)]
20.5mm - 21.4mm 20.5mm - 21.4mm = 6
[6 (0.00% / 0.00%)] [344,349 / 41 (99.99%)]
21.5mm - 22.4mm 21.5mm - 22.4mm = 5
[5 (0.00% / 0.00%)] [344,354 / 35 (99.99%)]
22.5mm - 23.4mm 22.5mm - 23.4mm = 6
[6 (0.00% / 0.00%)] [344,360 / 30 (99.99%)]
23.5mm - 24.4mm 23.5mm - 24.4mm = 2
[2 (0.00% / 0.00%)] [344,362 / 24 (99.99%)]
24.5mm - 25.4mm 24.5mm - 25.4mm = 2
[2 (0.00% / 0.00%)] [344,364 / 22 (99.99%)]
25.5mm - 26.4mm 25.5mm - 26.4mm = 4
[4 (0.00% / 0.00%)] [344,368 / 20 (100.00%)]
26.5mm - 27.4mm 26.5mm - 27.4mm = 1
[1 (0.00% / 0.00%)] [344,369 / 16 (100.00%)]
28.5mm - 29.4mm 28.5mm - 29.4mm = 2
[2 (0.00% / 0.00%)] [344,371 / 15 (100.00%)]
29.5mm - 30.4mm 29.5mm - 30.4mm = 4
[4 (0.00% / 0.00%)] [344,375 / 13 (100.00%)]
31.5mm - 32.4mm 31.5mm - 32.4mm = 1
[1 (0.00% / 0.00%)] [344,376 / 9 (100.00%)]
33.5mm - 34.4mm 33.5mm - 34.4mm = 2
[2 (0.00% / 0.00%)] [344,378 / 8 (100.00%)]
36.5mm - 37.4mm 36.5mm - 37.4mm = 1
[1 (0.00% / 0.00%)] [344,379 / 6 (100.00%)]
38.5mm - 39.4mm 38.5mm - 39.4mm = 1
[1 (0.00% / 0.00%)] [344,380 / 5 (100.00%)]
40.5mm - 41.4mm 40.5mm - 41.4mm = 1
[1 (0.00% / 0.00%)] [344,381 / 4 (100.00%)]
43.5mm - 44.4mm 43.5mm - 44.4mm = 1
[1 (0.00% / 0.00%)] [344,382 / 3 (100.00%)]
48.5mm - 49.4mm 48.5mm - 49.4mm = 1
[1 (0.00% / 0.00%)] [344,383 / 2 (100.00%)]
51.5mm - 52.4mm 51.5mm - 52.4mm = 1
[1 (0.00% / 0.00%)] [344,384 / 1 (100.00%)]

Missing observations (1,156 / 0.33%)

Wind Direction

Calm Calm = 22,235
[22,235 (6.43% / 6.57%)] [0 / 0 (NA)]
NNE NNE = 2,145
[2,145 (0.62% / 0.63%)] [0 / 0 (NA)]
NE NE = 8,492
[8,492 (2.46% / 2.51%)] [0 / 0 (NA)]
ENE ENE = 36,597
[36,597 (10.59% / 10.81%)] [0 / 0 (NA)]
E E = 38,354
[38,354 (11.10% / 11.33%)] [0 / 0 (NA)]
ESE ESE = 14,684
[14,684 (4.25% / 4.34%)] [0 / 0 (NA)]
SE SE = 9,739
[9,739 (2.82% / 2.88%)] [0 / 0 (NA)]
SSE SSE = 4,747
[4,747 (1.37% / 1.40%)] [0 / 0 (NA)]
S S = 3,918
[3,918 (1.13% / 1.16%)] [0 / 0 (NA)]
SSW SSW = 10,757
[10,757 (3.11% / 3.18%)] [0 / 0 (NA)]
SW SW = 31,715
[31,715 (9.18% / 9.37%)] [0 / 0 (NA)]
WSW WSW = 45,292
[45,292 (13.11% / 13.38%)] [0 / 0 (NA)]
W W = 55,049
[55,049 (15.93% / 16.26%)] [0 / 0 (NA)]
WNW WNW = 34,341
[34,341 (9.94% / 10.14%)] [0 / 0 (NA)]
NW NW = 12,897
[12,897 (3.73% / 3.81%)] [0 / 0 (NA)]
NNW NNW = 5,535
[5,535 (1.60% / 1.64%)] [0 / 0 (NA)]
N N = 2,030
[2,030 (0.59% / 0.60%)] [0 / 0 (NA)]

Missing observations (7,013 / 2.03%)

Wind Speed

0.0m/s - 0.4m/s 0.0m/s - 0.4m/s = 22,856
[22,856 (6.61% / 6.74%)] [22,856 / 338,920 (6.74%)]
0.5m/s - 1.4m/s 0.5m/s - 1.4m/s = 51,337
[51,337 (14.86% / 15.15%)] [74,193 / 316,064 (21.89%)]
1.5m/s - 2.4m/s 1.5m/s - 2.4m/s = 60,625
[60,625 (17.55% / 17.89%)] [134,818 / 264,727 (39.78%)]
2.5m/s - 3.4m/s 2.5m/s - 3.4m/s = 63,593
[63,593 (18.40% / 18.76%)] [198,411 / 204,102 (58.54%)]
3.5m/s - 4.4m/s 3.5m/s - 4.4m/s = 53,360
[53,360 (15.44% / 15.74%)] [251,771 / 140,509 (74.29%)]
4.5m/s - 5.4m/s 4.5m/s - 5.4m/s = 38,297
[38,297 (11.08% / 11.30%)] [290,068 / 87,149 (85.59%)]
5.5m/s - 6.4m/s 5.5m/s - 6.4m/s = 24,162
[24,162 (6.99% / 7.13%)] [314,230 / 48,852 (92.72%)]
6.5m/s - 7.4m/s 6.5m/s - 7.4m/s = 12,659
[12,659 (3.66% / 3.74%)] [326,889 / 24,690 (96.45%)]
7.5m/s - 8.4m/s 7.5m/s - 8.4m/s = 6,243
[6,243 (1.81% / 1.84%)] [333,132 / 12,031 (98.29%)]
8.5m/s - 9.4m/s 8.5m/s - 9.4m/s = 3,027
[3,027 (0.88% / 0.89%)] [336,159 / 5,788 (99.19%)]
9.5m/s - 10.4m/s 9.5m/s - 10.4m/s = 1,449
[1,449 (0.42% / 0.43%)] [337,608 / 2,761 (99.61%)]
10.5m/s - 11.4m/s 10.5m/s - 11.4m/s = 670
[670 (0.19% / 0.20%)] [338,278 / 1,312 (99.81%)]
11.5m/s - 12.4m/s 11.5m/s - 12.4m/s = 366
[366 (0.11% / 0.11%)] [338,644 / 642 (99.92%)]
12.5m/s - 13.4m/s 12.5m/s - 13.4m/s = 162
[162 (0.05% / 0.05%)] [338,806 / 276 (99.97%)]
13.5m/s - 14.4m/s 13.5m/s - 14.4m/s = 68
[68 (0.02% / 0.02%)] [338,874 / 114 (99.99%)]
14.5m/s - 15.4m/s 14.5m/s - 15.4m/s = 37
[37 (0.01% / 0.01%)] [338,911 / 46 (100.00%)]
15.5m/s - 16.4m/s 15.5m/s - 16.4m/s = 8
[8 (0.00% / 0.00%)] [338,919 / 9 (100.00%)]
16.5m/s - 17.4m/s 16.5m/s - 17.4m/s = 1
[1 (0.00% / 0.00%)] [338,920 / 1 (100.00%)]

Missing observations (6,620 / 1.92%)

Temperature

-10.5C - -9.6C -10.5C - -9.6C = 1
[1 (0.00% / 0.00%)] [1 / 339,113 (0.00%)]
-9.5C - -8.6C -9.5C - -8.6C = 21
[21 (0.01% / 0.01%)] [22 / 339,112 (0.01%)]
-8.5C - -7.6C -8.5C - -7.6C = 83
[83 (0.02% / 0.02%)] [105 / 339,091 (0.03%)]
-7.5C - -6.6C -7.5C - -6.6C = 279
[279 (0.08% / 0.08%)] [384 / 339,008 (0.11%)]
-6.5C - -5.6C -6.5C - -5.6C = 708
[708 (0.20% / 0.21%)] [1,092 / 338,729 (0.32%)]
-5.5C - -4.6C -5.5C - -4.6C = 1,531
[1,531 (0.44% / 0.45%)] [2,623 / 338,021 (0.77%)]
-4.5C - -3.6C -4.5C - -3.6C = 3,186
[3,186 (0.92% / 0.94%)] [5,809 / 336,490 (1.71%)]
-3.5C - -2.6C -3.5C - -2.6C = 5,082
[5,082 (1.47% / 1.50%)] [10,891 / 333,304 (3.21%)]
-2.5C - -1.6C -2.5C - -1.6C = 7,426
[7,426 (2.15% / 2.19%)] [18,317 / 328,222 (5.40%)]
-1.5C - -0.6C -1.5C - -0.6C = 9,926
[9,926 (2.87% / 2.93%)] [28,243 / 320,796 (8.33%)]
-0.5C - 0.4C -0.5C - 0.4C = 24,032
[24,032 (6.95% / 7.09%)] [52,275 / 310,870 (15.42%)]
0.5C - 1.4C 0.5C - 1.4C = 14,387
[14,387 (4.16% / 4.24%)] [66,662 / 286,838 (19.66%)]
1.5C - 2.4C 1.5C - 2.4C = 13,615
[13,615 (3.94% / 4.01%)] [80,277 / 272,451 (23.67%)]
2.5C - 3.4C 2.5C - 3.4C = 12,875
[12,875 (3.73% / 3.80%)] [93,152 / 258,836 (27.47%)]
3.5C - 4.4C 3.5C - 4.4C = 12,066
[12,066 (3.49% / 3.56%)] [105,218 / 245,961 (31.03%)]
4.5C - 5.4C 4.5C - 5.4C = 11,586
[11,586 (3.35% / 3.42%)] [116,804 / 233,895 (34.44%)]
5.5C - 6.4C 5.5C - 6.4C = 11,057
[11,057 (3.20% / 3.26%)] [127,861 / 222,309 (37.70%)]
6.5C - 7.4C 6.5C - 7.4C = 11,399
[11,399 (3.30% / 3.36%)] [139,260 / 211,252 (41.07%)]
7.5C - 8.4C 7.5C - 8.4C = 11,338
[11,338 (3.28% / 3.34%)] [150,598 / 199,853 (44.41%)]
8.5C - 9.4C 8.5C - 9.4C = 11,805
[11,805 (3.42% / 3.48%)] [162,403 / 188,515 (47.89%)]
9.5C - 10.4C 9.5C - 10.4C = 12,583
[12,583 (3.64% / 3.71%)] [174,986 / 176,710 (51.60%)]
10.5C - 11.4C 10.5C - 11.4C = 12,838
[12,838 (3.72% / 3.79%)] [187,824 / 164,127 (55.39%)]
11.5C - 12.4C 11.5C - 12.4C = 12,624
[12,624 (3.65% / 3.72%)] [200,448 / 151,289 (59.11%)]
12.5C - 13.4C 12.5C - 13.4C = 12,628
[12,628 (3.65% / 3.72%)] [213,076 / 138,665 (62.83%)]
13.5C - 14.4C 13.5C - 14.4C = 12,190
[12,190 (3.53% / 3.59%)] [225,266 / 126,037 (66.43%)]
14.5C - 15.4C 14.5C - 15.4C = 12,560
[12,560 (3.63% / 3.70%)] [237,826 / 113,847 (70.13%)]
15.5C - 16.4C 15.5C - 16.4C = 12,780
[12,780 (3.70% / 3.77%)] [250,606 / 101,287 (73.90%)]
16.5C - 17.4C 16.5C - 17.4C = 12,691
[12,691 (3.67% / 3.74%)] [263,297 / 88,507 (77.64%)]
17.5C - 18.4C 17.5C - 18.4C = 12,970
[12,970 (3.75% / 3.82%)] [276,267 / 75,816 (81.47%)]
18.5C - 19.4C 18.5C - 19.4C = 12,690
[12,690 (3.67% / 3.74%)] [288,957 / 62,846 (85.21%)]
19.5C - 20.4C 19.5C - 20.4C = 12,070
[12,070 (3.49% / 3.56%)] [301,027 / 50,156 (88.77%)]
20.5C - 21.4C 20.5C - 21.4C = 10,403
[10,403 (3.01% / 3.07%)] [311,430 / 38,086 (91.84%)]
21.5C - 22.4C 21.5C - 22.4C = 8,913
[8,913 (2.58% / 2.63%)] [320,343 / 27,683 (94.46%)]
22.5C - 23.4C 22.5C - 23.4C = 6,849
[6,849 (1.98% / 2.02%)] [327,192 / 18,770 (96.48%)]
23.5C - 24.4C 23.5C - 24.4C = 4,919
[4,919 (1.42% / 1.45%)] [332,111 / 11,921 (97.94%)]
24.5C - 25.4C 24.5C - 25.4C = 3,248
[3,248 (0.94% / 0.96%)] [335,359 / 7,002 (98.89%)]
25.5C - 26.4C 25.5C - 26.4C = 1,879
[1,879 (0.54% / 0.55%)] [337,238 / 3,754 (99.45%)]
26.5C - 27.4C 26.5C - 27.4C = 1,060
[1,060 (0.31% / 0.31%)] [338,298 / 1,875 (99.76%)]
27.5C - 28.4C 27.5C - 28.4C = 545
[545 (0.16% / 0.16%)] [338,843 / 815 (99.92%)]
28.5C - 29.4C 28.5C - 29.4C = 185
[185 (0.05% / 0.05%)] [339,028 / 270 (99.97%)]
29.5C - 30.4C 29.5C - 30.4C = 66
[66 (0.02% / 0.02%)] [339,094 / 85 (99.99%)]
30.5C - 31.4C 30.5C - 31.4C = 16
[16 (0.00% / 0.00%)] [339,110 / 19 (100.00%)]
31.5C - 32.4C 31.5C - 32.4C = 3
[3 (0.00% / 0.00%)] [339,113 / 3 (100.00%)]

Missing observations (6,427 / 1.86%)

Sunshine Duration

0.0h 0.0h = 244,896
[244,896 (70.87% / 72.15%)] [244,896 / 339,447 (72.15%)]
0.1h 0.1h = 10,155
[10,155 (2.94% / 2.99%)] [255,051 / 94,551 (75.14%)]
0.2h 0.2h = 7,566
[7,566 (2.19% / 2.23%)] [262,617 / 84,396 (77.37%)]
0.3h 0.3h = 6,278
[6,278 (1.82% / 1.85%)] [268,895 / 76,830 (79.22%)]
0.4h 0.4h = 5,849
[5,849 (1.69% / 1.72%)] [274,744 / 70,552 (80.94%)]
0.5h 0.5h = 5,450
[5,450 (1.58% / 1.61%)] [280,194 / 64,703 (82.54%)]
0.6h 0.6h = 5,351
[5,351 (1.55% / 1.58%)] [285,545 / 59,253 (84.12%)]
0.7h 0.7h = 5,013
[5,013 (1.45% / 1.48%)] [290,558 / 53,902 (85.60%)]
0.8h 0.8h = 5,262
[5,262 (1.52% / 1.55%)] [295,820 / 48,889 (87.15%)]
0.9h 0.9h = 6,485
[6,485 (1.88% / 1.91%)] [302,305 / 43,627 (89.06%)]
1.0h 1.0h = 37,142
[37,142 (10.75% / 10.94%)] [339,447 / 37,142 (100.00%)]

Missing observations (6,093 / 1.76%)

Snow Depth

0cm 0cm = 23,684
[23,684 (6.85% / 68.91%)] [23,684 / 34,370 (68.91%)]
1cm - 5cm 1cm - 5cm = 4,321
[4,321 (1.25% / 12.57%)] [28,005 / 10,686 (81.48%)]
6cm - 10cm 6cm - 10cm = 2,277
[2,277 (0.66% / 6.62%)] [30,282 / 6,365 (88.11%)]
11cm - 15cm 11cm - 15cm = 1,185
[1,185 (0.34% / 3.45%)] [31,467 / 4,088 (91.55%)]
16cm - 20cm 16cm - 20cm = 747
[747 (0.22% / 2.17%)] [32,214 / 2,903 (93.73%)]
21cm - 25cm 21cm - 25cm = 596
[596 (0.17% / 1.73%)] [32,810 / 2,156 (95.46%)]
26cm - 30cm 26cm - 30cm = 447
[447 (0.13% / 1.30%)] [33,257 / 1,560 (96.76%)]
31cm - 35cm 31cm - 35cm = 213
[213 (0.06% / 0.62%)] [33,470 / 1,113 (97.38%)]
36cm - 40cm 36cm - 40cm = 504
[504 (0.15% / 1.47%)] [33,974 / 900 (98.85%)]
41cm - 45cm 41cm - 45cm = 163
[163 (0.05% / 0.47%)] [34,137 / 396 (99.32%)]
46cm - 50cm 46cm - 50cm = 142
[142 (0.04% / 0.41%)] [34,279 / 233 (99.74%)]
51cm - 55cm 51cm - 55cm = 44
[44 (0.01% / 0.13%)] [34,323 / 91 (99.86%)]
56cm - 60cm 56cm - 60cm = 24
[24 (0.01% / 0.07%)] [34,347 / 47 (99.93%)]
61cm - 65cm 61cm - 65cm = 13
[13 (0.00% / 0.04%)] [34,360 / 23 (99.97%)]
66cm - 70cm 66cm - 70cm = 6
[6 (0.00% / 0.02%)] [34,366 / 10 (99.99%)]
71cm - 75cm 71cm - 75cm = 4
[4 (0.00% / 0.01%)] [34,370 / 4 (100.00%)]

Missing observations (311,170 / 90.05%)