Station Number 31281
Prefecture Aomori [ Local Portal ]
Location
Months of Observations 79
Number of Observations 57720
Period of Observations
1975/05/21 -- 1976/11/19 ROKKASHO 40.953N 141.317E 57m
1976/11/20 -- 1982/09/21 ROKKASHO 40.953N 141.317E 57m
Past Heavy Rain Data AMeDAS heavy rain
Weather Disaster Reports
Typhoon History
Neighbor Stations
31336 ROKKASHO (Aomori) 8.45 km 206 deg.
31332 NOHEJI (Aomori) 15.23 km 240 deg.
31915 NOHEJI (Aomori) 21.21 km 237 deg.
31321 YAMATOYAMA (Aomori) 30.31 km 247 deg.
31506 MISAWA (Aomori) 31.26 km 170 deg.
31411 SHICHINOHE (Aomori) 31.53 km 210 deg.
31121 ODANOSAWA (Aomori) 32.03 km 12 deg.
31111 MUTSU (Aomori) 37.73 km 346 deg.
31903 MUTSU (Aomori) 37.73 km 346 deg.
31586 TOWADA (Aomori) 40.19 km 188 deg.

Statistics for the Whole Period

Precipitation

0 mm 0 mm = 51,967
[51,967 (90.03% / 92.35%)] [51,967 / 56,271 (92.35%)]
1 mm 1 mm = 2,558
[2,558 (4.43% / 4.55%)] [54,525 / 4,304 (96.90%)]
2 mm 2 mm = 799
[799 (1.38% / 1.42%)] [55,324 / 1,746 (98.32%)]
3 mm 3 mm = 373
[373 (0.65% / 0.66%)] [55,697 / 947 (98.98%)]
4 mm 4 mm = 188
[188 (0.33% / 0.33%)] [55,885 / 574 (99.31%)]
5 mm 5 mm = 119
[119 (0.21% / 0.21%)] [56,004 / 386 (99.53%)]
6 mm 6 mm = 80
[80 (0.14% / 0.14%)] [56,084 / 267 (99.67%)]
7 mm 7 mm = 59
[59 (0.10% / 0.10%)] [56,143 / 187 (99.77%)]
8 mm 8 mm = 37
[37 (0.06% / 0.07%)] [56,180 / 128 (99.84%)]
9 mm 9 mm = 18
[18 (0.03% / 0.03%)] [56,198 / 91 (99.87%)]
10 mm 10 mm = 14
[14 (0.02% / 0.02%)] [56,212 / 73 (99.90%)]
11 mm 11 mm = 10
[10 (0.02% / 0.02%)] [56,222 / 59 (99.91%)]
12 mm 12 mm = 13
[13 (0.02% / 0.02%)] [56,235 / 49 (99.94%)]
13 mm 13 mm = 8
[8 (0.01% / 0.01%)] [56,243 / 36 (99.95%)]
14 mm 14 mm = 5
[5 (0.01% / 0.01%)] [56,248 / 28 (99.96%)]
15 mm 15 mm = 6
[6 (0.01% / 0.01%)] [56,254 / 23 (99.97%)]
16 mm 16 mm = 1
[1 (0.00% / 0.00%)] [56,255 / 17 (99.97%)]
17 mm 17 mm = 3
[3 (0.01% / 0.01%)] [56,258 / 16 (99.98%)]
18 mm 18 mm = 1
[1 (0.00% / 0.00%)] [56,259 / 13 (99.98%)]
19 mm 19 mm = 1
[1 (0.00% / 0.00%)] [56,260 / 12 (99.98%)]
20 mm 20 mm = 2
[2 (0.00% / 0.00%)] [56,262 / 11 (99.98%)]
21 mm 21 mm = 2
[2 (0.00% / 0.00%)] [56,264 / 9 (99.99%)]
22 mm 22 mm = 1
[1 (0.00% / 0.00%)] [56,265 / 7 (99.99%)]
26 mm 26 mm = 2
[2 (0.00% / 0.00%)] [56,267 / 6 (99.99%)]
27 mm 27 mm = 1
[1 (0.00% / 0.00%)] [56,268 / 4 (99.99%)]
30 mm 30 mm = 1
[1 (0.00% / 0.00%)] [56,269 / 3 (100.00%)]
34 mm 34 mm = 1
[1 (0.00% / 0.00%)] [56,270 / 2 (100.00%)]
35 mm 35 mm = 1
[1 (0.00% / 0.00%)] [56,271 / 1 (100.00%)]

Missing observations (1,449 / 2.51%)

Wind Direction

Calm Calm = 5,972
[5,972 (10.35% / 11.78%)] [0 / 0 (NA)]
NNE NNE = 431
[431 (0.75% / 0.85%)] [0 / 0 (NA)]
NE NE = 1,236
[1,236 (2.14% / 2.44%)] [0 / 0 (NA)]
ENE ENE = 5,430
[5,430 (9.41% / 10.71%)] [0 / 0 (NA)]
E E = 4,956
[4,956 (8.59% / 9.77%)] [0 / 0 (NA)]
ESE ESE = 2,824
[2,824 (4.89% / 5.57%)] [0 / 0 (NA)]
SE SE = 1,306
[1,306 (2.26% / 2.58%)] [0 / 0 (NA)]
SSE SSE = 743
[743 (1.29% / 1.47%)] [0 / 0 (NA)]
S S = 521
[521 (0.90% / 1.03%)] [0 / 0 (NA)]
SSW SSW = 1,261
[1,261 (2.18% / 2.49%)] [0 / 0 (NA)]
SW SW = 2,242
[2,242 (3.88% / 4.42%)] [0 / 0 (NA)]
WSW WSW = 7,665
[7,665 (13.28% / 15.11%)] [0 / 0 (NA)]
W W = 8,150
[8,150 (14.12% / 16.07%)] [0 / 0 (NA)]
WNW WNW = 4,494
[4,494 (7.79% / 8.86%)] [0 / 0 (NA)]
NW NW = 2,174
[2,174 (3.77% / 4.29%)] [0 / 0 (NA)]
NNW NNW = 861
[861 (1.49% / 1.70%)] [0 / 0 (NA)]
N N = 446
[446 (0.77% / 0.88%)] [0 / 0 (NA)]

Missing observations (7,008 / 12.14%)

Wind Speed

0 m/s 0 m/s = 5,972
[5,972 (10.35% / 11.70%)] [5,972 / 51,044 (11.70%)]
1 m/s 1 m/s = 11,641
[11,641 (20.17% / 22.81%)] [17,613 / 45,072 (34.51%)]
2 m/s 2 m/s = 11,178
[11,178 (19.37% / 21.90%)] [28,791 / 33,431 (56.40%)]
3 m/s 3 m/s = 8,975
[8,975 (15.55% / 17.58%)] [37,766 / 22,253 (73.99%)]
4 m/s 4 m/s = 5,934
[5,934 (10.28% / 11.63%)] [43,700 / 13,278 (85.61%)]
5 m/s 5 m/s = 3,832
[3,832 (6.64% / 7.51%)] [47,532 / 7,344 (93.12%)]
6 m/s 6 m/s = 2,034
[2,034 (3.52% / 3.98%)] [49,566 / 3,512 (97.10%)]
7 m/s 7 m/s = 906
[906 (1.57% / 1.77%)] [50,472 / 1,478 (98.88%)]
8 m/s 8 m/s = 356
[356 (0.62% / 0.70%)] [50,828 / 572 (99.58%)]
9 m/s 9 m/s = 130
[130 (0.23% / 0.25%)] [50,958 / 216 (99.83%)]
10 m/s 10 m/s = 50
[50 (0.09% / 0.10%)] [51,008 / 86 (99.93%)]
11 m/s 11 m/s = 19
[19 (0.03% / 0.04%)] [51,027 / 36 (99.97%)]
12 m/s 12 m/s = 8
[8 (0.01% / 0.02%)] [51,035 / 17 (99.98%)]
13 m/s 13 m/s = 5
[5 (0.01% / 0.01%)] [51,040 / 9 (99.99%)]
14 m/s 14 m/s = 1
[1 (0.00% / 0.00%)] [51,041 / 4 (99.99%)]
16 m/s 16 m/s = 2
[2 (0.00% / 0.00%)] [51,043 / 3 (100.00%)]
17 m/s 17 m/s = 1
[1 (0.00% / 0.00%)] [51,044 / 1 (100.00%)]

Missing observations (6,676 / 11.57%)

Temperature

-15.0 C - -14.1 C -15.0 C - -14.1 C = 2
[2 (0.00% / 0.00%)] [2 / 50,426 (0.00%)]
-14.0 C - -13.1 C -14.0 C - -13.1 C = 1
[1 (0.00% / 0.00%)] [3 / 50,424 (0.01%)]
-13.0 C - -12.1 C -13.0 C - -12.1 C = 7
[7 (0.01% / 0.01%)] [10 / 50,423 (0.02%)]
-12.0 C - -11.1 C -12.0 C - -11.1 C = 4
[4 (0.01% / 0.01%)] [14 / 50,416 (0.03%)]
-11.0 C - -10.1 C -11.0 C - -10.1 C = 18
[18 (0.03% / 0.04%)] [32 / 50,412 (0.06%)]
-10.0 C - -9.1 C -10.0 C - -9.1 C = 48
[48 (0.08% / 0.10%)] [80 / 50,394 (0.16%)]
-9.0 C - -8.1 C -9.0 C - -8.1 C = 107
[107 (0.19% / 0.21%)] [187 / 50,346 (0.37%)]
-8.0 C - -7.1 C -8.0 C - -7.1 C = 280
[280 (0.49% / 0.56%)] [467 / 50,239 (0.93%)]
-7.0 C - -6.1 C -7.0 C - -6.1 C = 421
[421 (0.73% / 0.83%)] [888 / 49,959 (1.76%)]
-6.0 C - -5.1 C -6.0 C - -5.1 C = 851
[851 (1.47% / 1.69%)] [1,739 / 49,538 (3.45%)]
-5.0 C - -4.1 C -5.0 C - -4.1 C = 1,122
[1,122 (1.94% / 2.23%)] [2,861 / 48,687 (5.67%)]
-4.0 C - -3.1 C -4.0 C - -3.1 C = 1,522
[1,522 (2.64% / 3.02%)] [4,383 / 47,565 (8.69%)]
-3.0 C - -2.1 C -3.0 C - -2.1 C = 1,642
[1,642 (2.84% / 3.26%)] [6,025 / 46,043 (11.95%)]
-2.0 C - -1.1 C -2.0 C - -1.1 C = 1,818
[1,818 (3.15% / 3.61%)] [7,843 / 44,401 (15.55%)]
-1.0 C - -0.1 C -1.0 C - -0.1 C = 1,956
[1,956 (3.39% / 3.88%)] [9,799 / 42,583 (19.43%)]
0.0 C - 0.9 C 0.0 C - 0.9 C = 2,291
[2,291 (3.97% / 4.54%)] [12,090 / 40,627 (23.98%)]
1.0 C - 1.9 C 1.0 C - 1.9 C = 1,934
[1,934 (3.35% / 3.84%)] [14,024 / 38,336 (27.81%)]
2.0 C - 2.9 C 2.0 C - 2.9 C = 2,018
[2,018 (3.50% / 4.00%)] [16,042 / 36,402 (31.81%)]
3.0 C - 3.9 C 3.0 C - 3.9 C = 1,808
[1,808 (3.13% / 3.59%)] [17,850 / 34,384 (35.40%)]
4.0 C - 4.9 C 4.0 C - 4.9 C = 1,786
[1,786 (3.09% / 3.54%)] [19,636 / 32,576 (38.94%)]
5.0 C - 5.9 C 5.0 C - 5.9 C = 1,603
[1,603 (2.78% / 3.18%)] [21,239 / 30,790 (42.12%)]
6.0 C - 6.9 C 6.0 C - 6.9 C = 1,474
[1,474 (2.55% / 2.92%)] [22,713 / 29,187 (45.04%)]
7.0 C - 7.9 C 7.0 C - 7.9 C = 1,444
[1,444 (2.50% / 2.86%)] [24,157 / 27,713 (47.91%)]
8.0 C - 8.9 C 8.0 C - 8.9 C = 1,537
[1,537 (2.66% / 3.05%)] [25,694 / 26,269 (50.95%)]
9.0 C - 9.9 C 9.0 C - 9.9 C = 1,574
[1,574 (2.73% / 3.12%)] [27,268 / 24,732 (54.08%)]
10.0 C - 10.9 C 10.0 C - 10.9 C = 1,492
[1,492 (2.58% / 2.96%)] [28,760 / 23,158 (57.03%)]
11.0 C - 11.9 C 11.0 C - 11.9 C = 1,480
[1,480 (2.56% / 2.93%)] [30,240 / 21,666 (59.97%)]
12.0 C - 12.9 C 12.0 C - 12.9 C = 1,661
[1,661 (2.88% / 3.29%)] [31,901 / 20,186 (63.26%)]
13.0 C - 13.9 C 13.0 C - 13.9 C = 1,645
[1,645 (2.85% / 3.26%)] [33,546 / 18,525 (66.53%)]
14.0 C - 14.9 C 14.0 C - 14.9 C = 1,721
[1,721 (2.98% / 3.41%)] [35,267 / 16,880 (69.94%)]
15.0 C - 15.9 C 15.0 C - 15.9 C = 1,810
[1,810 (3.14% / 3.59%)] [37,077 / 15,159 (73.53%)]
16.0 C - 16.9 C 16.0 C - 16.9 C = 2,093
[2,093 (3.63% / 4.15%)] [39,170 / 13,349 (77.68%)]
17.0 C - 17.9 C 17.0 C - 17.9 C = 2,083
[2,083 (3.61% / 4.13%)] [41,253 / 11,256 (81.81%)]
18.0 C - 18.9 C 18.0 C - 18.9 C = 1,932
[1,932 (3.35% / 3.83%)] [43,185 / 9,173 (85.64%)]
19.0 C - 19.9 C 19.0 C - 19.9 C = 1,722
[1,722 (2.98% / 3.41%)] [44,907 / 7,241 (89.06%)]
20.0 C - 20.9 C 20.0 C - 20.9 C = 1,468
[1,468 (2.54% / 2.91%)] [46,375 / 5,519 (91.97%)]
21.0 C - 21.9 C 21.0 C - 21.9 C = 1,149
[1,149 (1.99% / 2.28%)] [47,524 / 4,051 (94.25%)]
22.0 C - 22.9 C 22.0 C - 22.9 C = 929
[929 (1.61% / 1.84%)] [48,453 / 2,902 (96.09%)]
23.0 C - 23.9 C 23.0 C - 23.9 C = 618
[618 (1.07% / 1.23%)] [49,071 / 1,973 (97.31%)]
24.0 C - 24.9 C 24.0 C - 24.9 C = 472
[472 (0.82% / 0.94%)] [49,543 / 1,355 (98.25%)]
25.0 C - 25.9 C 25.0 C - 25.9 C = 326
[326 (0.56% / 0.65%)] [49,869 / 883 (98.90%)]
26.0 C - 26.9 C 26.0 C - 26.9 C = 202
[202 (0.35% / 0.40%)] [50,071 / 557 (99.30%)]
27.0 C - 27.9 C 27.0 C - 27.9 C = 156
[156 (0.27% / 0.31%)] [50,227 / 355 (99.61%)]
28.0 C - 28.9 C 28.0 C - 28.9 C = 96
[96 (0.17% / 0.19%)] [50,323 / 199 (99.80%)]
29.0 C - 29.9 C 29.0 C - 29.9 C = 62
[62 (0.11% / 0.12%)] [50,385 / 103 (99.92%)]
30.0 C - 30.9 C 30.0 C - 30.9 C = 28
[28 (0.05% / 0.06%)] [50,413 / 41 (99.97%)]
31.0 C - 31.9 C 31.0 C - 31.9 C = 11
[11 (0.02% / 0.02%)] [50,424 / 13 (100.00%)]
32.0 C - 32.9 C 32.0 C - 32.9 C = 2
[2 (0.00% / 0.00%)] [50,426 / 2 (100.00%)]

Missing observations (7,294 / 12.64%)

Sunshine Duration

0.0 h 0.0 h = 35,410
[35,410 (61.35% / 69.42%)] [35,410 / 51,007 (69.42%)]
0.1 h 0.1 h = 1,267
[1,267 (2.20% / 2.48%)] [36,677 / 15,597 (71.91%)]
0.2 h 0.2 h = 946
[946 (1.64% / 1.85%)] [37,623 / 14,330 (73.76%)]
0.3 h 0.3 h = 889
[889 (1.54% / 1.74%)] [38,512 / 13,384 (75.50%)]
0.4 h 0.4 h = 809
[809 (1.40% / 1.59%)] [39,321 / 12,495 (77.09%)]
0.5 h 0.5 h = 829
[829 (1.44% / 1.63%)] [40,150 / 11,686 (78.71%)]
0.6 h 0.6 h = 799
[799 (1.38% / 1.57%)] [40,949 / 10,857 (80.28%)]
0.7 h 0.7 h = 844
[844 (1.46% / 1.65%)] [41,793 / 10,058 (81.94%)]
0.8 h 0.8 h = 904
[904 (1.57% / 1.77%)] [42,697 / 9,214 (83.71%)]
0.9 h 0.9 h = 1,160
[1,160 (2.01% / 2.27%)] [43,857 / 8,310 (85.98%)]
1.0 h 1.0 h = 7,150
[7,150 (12.39% / 14.02%)] [51,007 / 7,150 (100.00%)]

Missing observations (6,713 / 11.63%)