Station Number 40046
Prefecture Ibaraki [ Local Portal ]
Location 茨城県北茨城市関南町関本下 (KITAIBARAKI SHI, IBARAKI KEN)
Months of Observations 476
Number of Observations 347,712
Period of Observations
Period Name Lat. Long. Height Anemometer
1974/11/01 -- 1978/01/17 OTSU 36.833N 140.787E 30m 0.0m
1978/01/18 -- 1986/10/19 OTSU 36.833N 140.787E 30m 6.5m
1986/10/20 -- 1991/02/20 OTSU 36.833N 140.787E 30m 6.5m
1991/02/21 -- 2005/12/19 KITAIBARAKI 36.842N 140.772E 45m 8.5m
2005/12/20 -- 2012/01/10 KITAIBARAKI 36.842N 140.772E 45m 8.5m
2012/01/11 -- 2015/08/99 KITAIBARAKI 36.833N 140.772E 5m 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
36836 YAMADA (Fukushima) 11.63km 342deg.
40041 HANAZONO (Ibaraki) 12.65km 287deg.
40081 TAKAHAGI (Ibaraki) 14.82km 199deg.
36846 ONAHAMA (Fukushima) 17.22km 42deg.
40076 ONO (Ibaraki) 18.84km 238deg.
36776 KATOONO (Fukushima) 19.67km 350deg.
40066 TOKUDA (Ibaraki) 26.59km 256deg.
40106 KAMINESAN (Ibaraki) 26.59km 213deg.
36781 TAIRA (Fukushima) 27.39km 19deg.
36771 OTSUBEYAMA (Fukushima) 29.93km 336deg.

Statistics for the Whole Period

Precipitation

0.0mm - 0.4mm 0.0mm - 0.4mm = 323,304
[323,304 (92.98% / 93.34%)] [323,304 / 346,389 (93.34%)]
0.5mm - 1.4mm 0.5mm - 1.4mm = 11,941
[11,941 (3.43% / 3.45%)] [335,245 / 23,085 (96.78%)]
1.5mm - 2.4mm 1.5mm - 2.4mm = 4,541
[4,541 (1.31% / 1.31%)] [339,786 / 11,144 (98.09%)]
2.5mm - 3.4mm 2.5mm - 3.4mm = 2,248
[2,248 (0.65% / 0.65%)] [342,034 / 6,603 (98.74%)]
3.5mm - 4.4mm 3.5mm - 4.4mm = 1,311
[1,311 (0.38% / 0.38%)] [343,345 / 4,355 (99.12%)]
4.5mm - 5.4mm 4.5mm - 5.4mm = 847
[847 (0.24% / 0.24%)] [344,192 / 3,044 (99.37%)]
5.5mm - 6.4mm 5.5mm - 6.4mm = 543
[543 (0.16% / 0.16%)] [344,735 / 2,197 (99.52%)]
6.5mm - 7.4mm 6.5mm - 7.4mm = 350
[350 (0.10% / 0.10%)] [345,085 / 1,654 (99.62%)]
7.5mm - 8.4mm 7.5mm - 8.4mm = 271
[271 (0.08% / 0.08%)] [345,356 / 1,304 (99.70%)]
8.5mm - 9.4mm 8.5mm - 9.4mm = 199
[199 (0.06% / 0.06%)] [345,555 / 1,033 (99.76%)]
9.5mm - 10.4mm 9.5mm - 10.4mm = 161
[161 (0.05% / 0.05%)] [345,716 / 834 (99.81%)]
10.5mm - 11.4mm 10.5mm - 11.4mm = 112
[112 (0.03% / 0.03%)] [345,828 / 673 (99.84%)]
11.5mm - 12.4mm 11.5mm - 12.4mm = 91
[91 (0.03% / 0.03%)] [345,919 / 561 (99.86%)]
12.5mm - 13.4mm 12.5mm - 13.4mm = 68
[68 (0.02% / 0.02%)] [345,987 / 470 (99.88%)]
13.5mm - 14.4mm 13.5mm - 14.4mm = 47
[47 (0.01% / 0.01%)] [346,034 / 402 (99.90%)]
14.5mm - 15.4mm 14.5mm - 15.4mm = 54
[54 (0.02% / 0.02%)] [346,088 / 355 (99.91%)]
15.5mm - 16.4mm 15.5mm - 16.4mm = 42
[42 (0.01% / 0.01%)] [346,130 / 301 (99.93%)]
16.5mm - 17.4mm 16.5mm - 17.4mm = 33
[33 (0.01% / 0.01%)] [346,163 / 259 (99.93%)]
17.5mm - 18.4mm 17.5mm - 18.4mm = 36
[36 (0.01% / 0.01%)] [346,199 / 226 (99.95%)]
18.5mm - 19.4mm 18.5mm - 19.4mm = 29
[29 (0.01% / 0.01%)] [346,228 / 190 (99.95%)]
19.5mm - 20.4mm 19.5mm - 20.4mm = 24
[24 (0.01% / 0.01%)] [346,252 / 161 (99.96%)]
20.5mm - 21.4mm 20.5mm - 21.4mm = 25
[25 (0.01% / 0.01%)] [346,277 / 137 (99.97%)]
21.5mm - 22.4mm 21.5mm - 22.4mm = 10
[10 (0.00% / 0.00%)] [346,287 / 112 (99.97%)]
22.5mm - 23.4mm 22.5mm - 23.4mm = 16
[16 (0.00% / 0.00%)] [346,303 / 102 (99.98%)]
23.5mm - 24.4mm 23.5mm - 24.4mm = 12
[12 (0.00% / 0.00%)] [346,315 / 86 (99.98%)]
24.5mm - 25.4mm 24.5mm - 25.4mm = 12
[12 (0.00% / 0.00%)] [346,327 / 74 (99.98%)]
25.5mm - 26.4mm 25.5mm - 26.4mm = 7
[7 (0.00% / 0.00%)] [346,334 / 62 (99.98%)]
26.5mm - 27.4mm 26.5mm - 27.4mm = 4
[4 (0.00% / 0.00%)] [346,338 / 55 (99.99%)]
27.5mm - 28.4mm 27.5mm - 28.4mm = 2
[2 (0.00% / 0.00%)] [346,340 / 51 (99.99%)]
28.5mm - 29.4mm 28.5mm - 29.4mm = 5
[5 (0.00% / 0.00%)] [346,345 / 49 (99.99%)]
29.5mm - 30.4mm 29.5mm - 30.4mm = 3
[3 (0.00% / 0.00%)] [346,348 / 44 (99.99%)]
30.5mm - 31.4mm 30.5mm - 31.4mm = 4
[4 (0.00% / 0.00%)] [346,352 / 41 (99.99%)]
31.5mm - 32.4mm 31.5mm - 32.4mm = 3
[3 (0.00% / 0.00%)] [346,355 / 37 (99.99%)]
32.5mm - 33.4mm 32.5mm - 33.4mm = 3
[3 (0.00% / 0.00%)] [346,358 / 34 (99.99%)]
33.5mm - 34.4mm 33.5mm - 34.4mm = 5
[5 (0.00% / 0.00%)] [346,363 / 31 (99.99%)]
34.5mm - 35.4mm 34.5mm - 35.4mm = 5
[5 (0.00% / 0.00%)] [346,368 / 26 (99.99%)]
35.5mm - 36.4mm 35.5mm - 36.4mm = 3
[3 (0.00% / 0.00%)] [346,371 / 21 (99.99%)]
37.5mm - 38.4mm 37.5mm - 38.4mm = 1
[1 (0.00% / 0.00%)] [346,372 / 18 (100.00%)]
38.5mm - 39.4mm 38.5mm - 39.4mm = 4
[4 (0.00% / 0.00%)] [346,376 / 17 (100.00%)]
40.5mm - 41.4mm 40.5mm - 41.4mm = 3
[3 (0.00% / 0.00%)] [346,379 / 13 (100.00%)]
41.5mm - 42.4mm 41.5mm - 42.4mm = 2
[2 (0.00% / 0.00%)] [346,381 / 10 (100.00%)]
42.5mm - 43.4mm 42.5mm - 43.4mm = 1
[1 (0.00% / 0.00%)] [346,382 / 8 (100.00%)]
43.5mm - 44.4mm 43.5mm - 44.4mm = 1
[1 (0.00% / 0.00%)] [346,383 / 7 (100.00%)]
44.5mm - 45.4mm 44.5mm - 45.4mm = 3
[3 (0.00% / 0.00%)] [346,386 / 6 (100.00%)]
48.5mm - 49.4mm 48.5mm - 49.4mm = 1
[1 (0.00% / 0.00%)] [346,387 / 3 (100.00%)]
51.5mm - 52.4mm 51.5mm - 52.4mm = 1
[1 (0.00% / 0.00%)] [346,388 / 2 (100.00%)]
55.5mm - 56.4mm 55.5mm - 56.4mm = 1
[1 (0.00% / 0.00%)] [346,389 / 1 (100.00%)]

Missing observations (1,323 / 0.38%)

Wind Direction

Calm Calm = 43,713
[43,713 (12.57% / 13.30%)] [0 / 0 (NA)]
NNE NNE = 12,905
[12,905 (3.71% / 3.93%)] [0 / 0 (NA)]
NE NE = 13,236
[13,236 (3.81% / 4.03%)] [0 / 0 (NA)]
ENE ENE = 10,268
[10,268 (2.95% / 3.12%)] [0 / 0 (NA)]
E E = 7,273
[7,273 (2.09% / 2.21%)] [0 / 0 (NA)]
ESE ESE = 7,922
[7,922 (2.28% / 2.41%)] [0 / 0 (NA)]
SE SE = 11,257
[11,257 (3.24% / 3.43%)] [0 / 0 (NA)]
SSE SSE = 28,909
[28,909 (8.31% / 8.80%)] [0 / 0 (NA)]
S S = 21,370
[21,370 (6.15% / 6.50%)] [0 / 0 (NA)]
SSW SSW = 10,501
[10,501 (3.02% / 3.20%)] [0 / 0 (NA)]
SW SW = 4,179
[4,179 (1.20% / 1.27%)] [0 / 0 (NA)]
WSW WSW = 4,299
[4,299 (1.24% / 1.31%)] [0 / 0 (NA)]
W W = 6,282
[6,282 (1.81% / 1.91%)] [0 / 0 (NA)]
WNW WNW = 21,197
[21,197 (6.10% / 6.45%)] [0 / 0 (NA)]
NW NW = 58,526
[58,526 (16.83% / 17.81%)] [0 / 0 (NA)]
NNW NNW = 47,595
[47,595 (13.69% / 14.48%)] [0 / 0 (NA)]
N N = 19,220
[19,220 (5.53% / 5.85%)] [0 / 0 (NA)]

Missing observations (19,060 / 5.48%)

Wind Speed

0.0m/s - 0.4m/s 0.0m/s - 0.4m/s = 45,958
[45,958 (13.22% / 13.96%)] [45,958 / 329,138 (13.96%)]
0.5m/s - 1.4m/s 0.5m/s - 1.4m/s = 92,731
[92,731 (26.67% / 28.17%)] [138,689 / 283,180 (42.14%)]
1.5m/s - 2.4m/s 1.5m/s - 2.4m/s = 85,297
[85,297 (24.53% / 25.92%)] [223,986 / 190,449 (68.05%)]
2.5m/s - 3.4m/s 2.5m/s - 3.4m/s = 53,130
[53,130 (15.28% / 16.14%)] [277,116 / 105,152 (84.19%)]
3.5m/s - 4.4m/s 3.5m/s - 4.4m/s = 26,187
[26,187 (7.53% / 7.96%)] [303,303 / 52,022 (92.15%)]
4.5m/s - 5.4m/s 4.5m/s - 5.4m/s = 13,203
[13,203 (3.80% / 4.01%)] [316,506 / 25,835 (96.16%)]
5.5m/s - 6.4m/s 5.5m/s - 6.4m/s = 6,755
[6,755 (1.94% / 2.05%)] [323,261 / 12,632 (98.21%)]
6.5m/s - 7.4m/s 6.5m/s - 7.4m/s = 3,242
[3,242 (0.93% / 0.98%)] [326,503 / 5,877 (99.20%)]
7.5m/s - 8.4m/s 7.5m/s - 8.4m/s = 1,505
[1,505 (0.43% / 0.46%)] [328,008 / 2,635 (99.66%)]
8.5m/s - 9.4m/s 8.5m/s - 9.4m/s = 643
[643 (0.18% / 0.20%)] [328,651 / 1,130 (99.85%)]
9.5m/s - 10.4m/s 9.5m/s - 10.4m/s = 267
[267 (0.08% / 0.08%)] [328,918 / 487 (99.93%)]
10.5m/s - 11.4m/s 10.5m/s - 11.4m/s = 127
[127 (0.04% / 0.04%)] [329,045 / 220 (99.97%)]
11.5m/s - 12.4m/s 11.5m/s - 12.4m/s = 46
[46 (0.01% / 0.01%)] [329,091 / 93 (99.99%)]
12.5m/s - 13.4m/s 12.5m/s - 13.4m/s = 18
[18 (0.01% / 0.01%)] [329,109 / 47 (99.99%)]
13.5m/s - 14.4m/s 13.5m/s - 14.4m/s = 14
[14 (0.00% / 0.00%)] [329,123 / 29 (100.00%)]
14.5m/s - 15.4m/s 14.5m/s - 15.4m/s = 6
[6 (0.00% / 0.00%)] [329,129 / 15 (100.00%)]
15.5m/s - 16.4m/s 15.5m/s - 16.4m/s = 5
[5 (0.00% / 0.00%)] [329,134 / 9 (100.00%)]
16.5m/s - 17.4m/s 16.5m/s - 17.4m/s = 1
[1 (0.00% / 0.00%)] [329,135 / 4 (100.00%)]
17.5m/s - 18.4m/s 17.5m/s - 18.4m/s = 1
[1 (0.00% / 0.00%)] [329,136 / 3 (100.00%)]
18.5m/s - 19.4m/s 18.5m/s - 19.4m/s = 1
[1 (0.00% / 0.00%)] [329,137 / 2 (100.00%)]
19.5m/s - 20.4m/s 19.5m/s - 20.4m/s = 1
[1 (0.00% / 0.00%)] [329,138 / 1 (100.00%)]

Missing observations (18,574 / 5.34%)

Temperature

-7.5C - -6.6C -7.5C - -6.6C = 16
[16 (0.00% / 0.00%)] [16 / 329,432 (0.00%)]
-6.5C - -5.6C -6.5C - -5.6C = 59
[59 (0.02% / 0.02%)] [75 / 329,416 (0.02%)]
-5.5C - -4.6C -5.5C - -4.6C = 145
[145 (0.04% / 0.04%)] [220 / 329,357 (0.07%)]
-4.5C - -3.6C -4.5C - -3.6C = 308
[308 (0.09% / 0.09%)] [528 / 329,212 (0.16%)]
-3.5C - -2.6C -3.5C - -2.6C = 693
[693 (0.20% / 0.21%)] [1,221 / 328,904 (0.37%)]
-2.5C - -1.6C -2.5C - -1.6C = 1,430
[1,430 (0.41% / 0.43%)] [2,651 / 328,211 (0.80%)]
-1.5C - -0.6C -1.5C - -0.6C = 2,800
[2,800 (0.81% / 0.85%)] [5,451 / 326,781 (1.65%)]
-0.5C - 0.4C -0.5C - 0.4C = 10,317
[10,317 (2.97% / 3.13%)] [15,768 / 323,981 (4.79%)]
0.5C - 1.4C 0.5C - 1.4C = 8,399
[8,399 (2.42% / 2.55%)] [24,167 / 313,664 (7.34%)]
1.5C - 2.4C 1.5C - 2.4C = 9,445
[9,445 (2.72% / 2.87%)] [33,612 / 305,265 (10.20%)]
2.5C - 3.4C 2.5C - 3.4C = 11,030
[11,030 (3.17% / 3.35%)] [44,642 / 295,820 (13.55%)]
3.5C - 4.4C 3.5C - 4.4C = 11,627
[11,627 (3.34% / 3.53%)] [56,269 / 284,790 (17.08%)]
4.5C - 5.4C 4.5C - 5.4C = 12,148
[12,148 (3.49% / 3.69%)] [68,417 / 273,163 (20.77%)]
5.5C - 6.4C 5.5C - 6.4C = 12,498
[12,498 (3.59% / 3.79%)] [80,915 / 261,015 (24.56%)]
6.5C - 7.4C 6.5C - 7.4C = 12,539
[12,539 (3.61% / 3.81%)] [93,454 / 248,517 (28.37%)]
7.5C - 8.4C 7.5C - 8.4C = 12,086
[12,086 (3.48% / 3.67%)] [105,540 / 235,978 (32.04%)]
8.5C - 9.4C 8.5C - 9.4C = 11,869
[11,869 (3.41% / 3.60%)] [117,409 / 223,892 (35.64%)]
9.5C - 10.4C 9.5C - 10.4C = 11,541
[11,541 (3.32% / 3.50%)] [128,950 / 212,023 (39.14%)]
10.5C - 11.4C 10.5C - 11.4C = 11,564
[11,564 (3.33% / 3.51%)] [140,514 / 200,482 (42.65%)]
11.5C - 12.4C 11.5C - 12.4C = 11,745
[11,745 (3.38% / 3.57%)] [152,259 / 188,918 (46.22%)]
12.5C - 13.4C 12.5C - 13.4C = 11,592
[11,592 (3.33% / 3.52%)] [163,851 / 177,173 (49.74%)]
13.5C - 14.4C 13.5C - 14.4C = 12,471
[12,471 (3.59% / 3.79%)] [176,322 / 165,581 (53.52%)]
14.5C - 15.4C 14.5C - 15.4C = 13,309
[13,309 (3.83% / 4.04%)] [189,631 / 153,110 (57.56%)]
15.5C - 16.4C 15.5C - 16.4C = 13,815
[13,815 (3.97% / 4.19%)] [203,446 / 139,801 (61.76%)]
16.5C - 17.4C 16.5C - 17.4C = 14,747
[14,747 (4.24% / 4.48%)] [218,193 / 125,986 (66.23%)]
17.5C - 18.4C 17.5C - 18.4C = 15,122
[15,122 (4.35% / 4.59%)] [233,315 / 111,239 (70.82%)]
18.5C - 19.4C 18.5C - 19.4C = 14,617
[14,617 (4.20% / 4.44%)] [247,932 / 96,117 (75.26%)]
19.5C - 20.4C 19.5C - 20.4C = 14,186
[14,186 (4.08% / 4.31%)] [262,118 / 81,500 (79.57%)]
20.5C - 21.4C 20.5C - 21.4C = 13,653
[13,653 (3.93% / 4.14%)] [275,771 / 67,314 (83.71%)]
21.5C - 22.4C 21.5C - 22.4C = 12,724
[12,724 (3.66% / 3.86%)] [288,495 / 53,661 (87.57%)]
22.5C - 23.4C 22.5C - 23.4C = 11,886
[11,886 (3.42% / 3.61%)] [300,381 / 40,937 (91.18%)]
23.5C - 24.4C 23.5C - 24.4C = 9,940
[9,940 (2.86% / 3.02%)] [310,321 / 29,051 (94.20%)]
24.5C - 25.4C 24.5C - 25.4C = 7,117
[7,117 (2.05% / 2.16%)] [317,438 / 19,111 (96.36%)]
25.5C - 26.4C 25.5C - 26.4C = 5,098
[5,098 (1.47% / 1.55%)] [322,536 / 11,994 (97.91%)]
26.5C - 27.4C 26.5C - 27.4C = 3,466
[3,466 (1.00% / 1.05%)] [326,002 / 6,896 (98.96%)]
27.5C - 28.4C 27.5C - 28.4C = 1,960
[1,960 (0.56% / 0.59%)] [327,962 / 3,430 (99.55%)]
28.5C - 29.4C 28.5C - 29.4C = 907
[907 (0.26% / 0.28%)] [328,869 / 1,470 (99.83%)]
29.5C - 30.4C 29.5C - 30.4C = 366
[366 (0.11% / 0.11%)] [329,235 / 563 (99.94%)]
30.5C - 31.4C 30.5C - 31.4C = 129
[129 (0.04% / 0.04%)] [329,364 / 197 (99.98%)]
31.5C - 32.4C 31.5C - 32.4C = 44
[44 (0.01% / 0.01%)] [329,408 / 68 (99.99%)]
32.5C - 33.4C 32.5C - 33.4C = 15
[15 (0.00% / 0.00%)] [329,423 / 24 (100.00%)]
33.5C - 34.4C 33.5C - 34.4C = 5
[5 (0.00% / 0.00%)] [329,428 / 9 (100.00%)]
34.5C - 35.4C 34.5C - 35.4C = 3
[3 (0.00% / 0.00%)] [329,431 / 4 (100.00%)]
35.5C - 36.4C 35.5C - 36.4C = 1
[1 (0.00% / 0.00%)] [329,432 / 1 (100.00%)]

Missing observations (18,280 / 5.26%)

Sunshine Duration

0.0h 0.0h = 233,561
[233,561 (67.17% / 70.97%)] [233,561 / 329,090 (70.97%)]
0.1h 0.1h = 6,915
[6,915 (1.99% / 2.10%)] [240,476 / 95,529 (73.07%)]
0.2h 0.2h = 5,312
[5,312 (1.53% / 1.61%)] [245,788 / 88,614 (74.69%)]
0.3h 0.3h = 4,805
[4,805 (1.38% / 1.46%)] [250,593 / 83,302 (76.15%)]
0.4h 0.4h = 4,422
[4,422 (1.27% / 1.34%)] [255,015 / 78,497 (77.49%)]
0.5h 0.5h = 4,313
[4,313 (1.24% / 1.31%)] [259,328 / 74,075 (78.80%)]
0.6h 0.6h = 4,481
[4,481 (1.29% / 1.36%)] [263,809 / 69,762 (80.16%)]
0.7h 0.7h = 4,744
[4,744 (1.36% / 1.44%)] [268,553 / 65,281 (81.60%)]
0.8h 0.8h = 5,342
[5,342 (1.54% / 1.62%)] [273,895 / 60,537 (83.23%)]
0.9h 0.9h = 7,345
[7,345 (2.11% / 2.23%)] [281,240 / 55,195 (85.46%)]
1.0h 1.0h = 47,850
[47,850 (13.76% / 14.54%)] [329,090 / 47,850 (100.00%)]

Missing observations (18,622 / 5.36%)