Station Number 40281
Prefecture Ibaraki [ Local Portal ]
Location 茨城県下妻市二本紀 (SHIMOTSUMA SHI, IBARAKI KEN)
Months of Observations 476
Number of Observations 347,712
Period of Observations
Period Name Lat. Long. Height Anemometer
1974/11/01 -- 1978/01/10 SHIMOTSUMA 36.167N 139.947E 20m 0.0m
1978/01/11 -- 1987/11/15 SHIMOTSUMA 36.168N 139.945E 20m 6.5m
1987/11/16 -- 2008/01/10 SHIMOTSUMA 36.168N 139.945E 20m 6.5m
2008/01/11 -- 2010/02/04 SHIMOTSUMA 36.168N 139.945E 20m 6.5m
2010/02/05 -- 2015/08/99 SHIMOTSUMA 36.168N 139.945E 20m 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
40282 JOSO (Ibaraki) 6.87km 152deg.
40231 SHIMODATE (Ibaraki) 13.23km 16deg.
40242 TSUKUBASAN (Ibaraki) 15.14km 65deg.
40243 TSUKUBASAN (Ibaraki) 15.14km 65deg.
40326 BANDO (Ibaraki) 15.48km 197deg.
40181 KADOI (Ibaraki) 19.94km 23deg.
40336 TSUKUBA (Ibaraki) 20.36km 127deg.
40905 (Ibaraki) 20.36km 127deg.
40221 KOGA (Ibaraki) 20.85km 280deg.
41376 OYAMA (Tochigi) 21.51km 331deg.
40241 KAKIOKA (Ibaraki) 23.01km 71deg.
40341 TSUCHIURA (Ibaraki) 25.78km 106deg.
43126 KUKI (Saitama) 29.32km 252deg.

Statistics for the Whole Period

Precipitation

0.0mm - 0.4mm 0.0mm - 0.4mm = 326,240
[326,240 (93.82% / 93.93%)] [326,240 / 347,337 (93.93%)]
0.5mm - 1.4mm 0.5mm - 1.4mm = 11,668
[11,668 (3.36% / 3.36%)] [337,908 / 21,097 (97.29%)]
1.5mm - 2.4mm 1.5mm - 2.4mm = 4,275
[4,275 (1.23% / 1.23%)] [342,183 / 9,429 (98.52%)]
2.5mm - 3.4mm 2.5mm - 3.4mm = 1,949
[1,949 (0.56% / 0.56%)] [344,132 / 5,154 (99.08%)]
3.5mm - 4.4mm 3.5mm - 4.4mm = 1,018
[1,018 (0.29% / 0.29%)] [345,150 / 3,205 (99.37%)]
4.5mm - 5.4mm 4.5mm - 5.4mm = 615
[615 (0.18% / 0.18%)] [345,765 / 2,187 (99.55%)]
5.5mm - 6.4mm 5.5mm - 6.4mm = 392
[392 (0.11% / 0.11%)] [346,157 / 1,572 (99.66%)]
6.5mm - 7.4mm 6.5mm - 7.4mm = 279
[279 (0.08% / 0.08%)] [346,436 / 1,180 (99.74%)]
7.5mm - 8.4mm 7.5mm - 8.4mm = 176
[176 (0.05% / 0.05%)] [346,612 / 901 (99.79%)]
8.5mm - 9.4mm 8.5mm - 9.4mm = 129
[129 (0.04% / 0.04%)] [346,741 / 725 (99.83%)]
9.5mm - 10.4mm 9.5mm - 10.4mm = 98
[98 (0.03% / 0.03%)] [346,839 / 596 (99.86%)]
10.5mm - 11.4mm 10.5mm - 11.4mm = 81
[81 (0.02% / 0.02%)] [346,920 / 498 (99.88%)]
11.5mm - 12.4mm 11.5mm - 12.4mm = 69
[69 (0.02% / 0.02%)] [346,989 / 417 (99.90%)]
12.5mm - 13.4mm 12.5mm - 13.4mm = 53
[53 (0.02% / 0.02%)] [347,042 / 348 (99.92%)]
13.5mm - 14.4mm 13.5mm - 14.4mm = 47
[47 (0.01% / 0.01%)] [347,089 / 295 (99.93%)]
14.5mm - 15.4mm 14.5mm - 15.4mm = 38
[38 (0.01% / 0.01%)] [347,127 / 248 (99.94%)]
15.5mm - 16.4mm 15.5mm - 16.4mm = 33
[33 (0.01% / 0.01%)] [347,160 / 210 (99.95%)]
16.5mm - 17.4mm 16.5mm - 17.4mm = 25
[25 (0.01% / 0.01%)] [347,185 / 177 (99.96%)]
17.5mm - 18.4mm 17.5mm - 18.4mm = 20
[20 (0.01% / 0.01%)] [347,205 / 152 (99.96%)]
18.5mm - 19.4mm 18.5mm - 19.4mm = 11
[11 (0.00% / 0.00%)] [347,216 / 132 (99.97%)]
19.5mm - 20.4mm 19.5mm - 20.4mm = 15
[15 (0.00% / 0.00%)] [347,231 / 121 (99.97%)]
20.5mm - 21.4mm 20.5mm - 21.4mm = 8
[8 (0.00% / 0.00%)] [347,239 / 106 (99.97%)]
21.5mm - 22.4mm 21.5mm - 22.4mm = 13
[13 (0.00% / 0.00%)] [347,252 / 98 (99.98%)]
22.5mm - 23.4mm 22.5mm - 23.4mm = 10
[10 (0.00% / 0.00%)] [347,262 / 85 (99.98%)]
23.5mm - 24.4mm 23.5mm - 24.4mm = 10
[10 (0.00% / 0.00%)] [347,272 / 75 (99.98%)]
24.5mm - 25.4mm 24.5mm - 25.4mm = 4
[4 (0.00% / 0.00%)] [347,276 / 65 (99.98%)]
25.5mm - 26.4mm 25.5mm - 26.4mm = 9
[9 (0.00% / 0.00%)] [347,285 / 61 (99.99%)]
26.5mm - 27.4mm 26.5mm - 27.4mm = 4
[4 (0.00% / 0.00%)] [347,289 / 52 (99.99%)]
27.5mm - 28.4mm 27.5mm - 28.4mm = 2
[2 (0.00% / 0.00%)] [347,291 / 48 (99.99%)]
28.5mm - 29.4mm 28.5mm - 29.4mm = 2
[2 (0.00% / 0.00%)] [347,293 / 46 (99.99%)]
29.5mm - 30.4mm 29.5mm - 30.4mm = 2
[2 (0.00% / 0.00%)] [347,295 / 44 (99.99%)]
30.5mm - 31.4mm 30.5mm - 31.4mm = 1
[1 (0.00% / 0.00%)] [347,296 / 42 (99.99%)]
31.5mm - 32.4mm 31.5mm - 32.4mm = 5
[5 (0.00% / 0.00%)] [347,301 / 41 (99.99%)]
32.5mm - 33.4mm 32.5mm - 33.4mm = 3
[3 (0.00% / 0.00%)] [347,304 / 36 (99.99%)]
33.5mm - 34.4mm 33.5mm - 34.4mm = 6
[6 (0.00% / 0.00%)] [347,310 / 33 (99.99%)]
34.5mm - 35.4mm 34.5mm - 35.4mm = 4
[4 (0.00% / 0.00%)] [347,314 / 27 (99.99%)]
35.5mm - 36.4mm 35.5mm - 36.4mm = 3
[3 (0.00% / 0.00%)] [347,317 / 23 (99.99%)]
36.5mm - 37.4mm 36.5mm - 37.4mm = 4
[4 (0.00% / 0.00%)] [347,321 / 20 (100.00%)]
37.5mm - 38.4mm 37.5mm - 38.4mm = 2
[2 (0.00% / 0.00%)] [347,323 / 16 (100.00%)]
38.5mm - 39.4mm 38.5mm - 39.4mm = 4
[4 (0.00% / 0.00%)] [347,327 / 14 (100.00%)]
40.5mm - 41.4mm 40.5mm - 41.4mm = 1
[1 (0.00% / 0.00%)] [347,328 / 10 (100.00%)]
41.5mm - 42.4mm 41.5mm - 42.4mm = 1
[1 (0.00% / 0.00%)] [347,329 / 9 (100.00%)]
42.5mm - 43.4mm 42.5mm - 43.4mm = 1
[1 (0.00% / 0.00%)] [347,330 / 8 (100.00%)]
43.5mm - 44.4mm 43.5mm - 44.4mm = 1
[1 (0.00% / 0.00%)] [347,331 / 7 (100.00%)]
44.5mm - 45.4mm 44.5mm - 45.4mm = 2
[2 (0.00% / 0.00%)] [347,333 / 6 (100.00%)]
48.5mm - 49.4mm 48.5mm - 49.4mm = 1
[1 (0.00% / 0.00%)] [347,334 / 4 (100.00%)]
55.5mm - 56.4mm 55.5mm - 56.4mm = 1
[1 (0.00% / 0.00%)] [347,335 / 3 (100.00%)]
65.5mm - 66.4mm 65.5mm - 66.4mm = 1
[1 (0.00% / 0.00%)] [347,336 / 2 (100.00%)]
74.5mm - 75.4mm 74.5mm - 75.4mm = 1
[1 (0.00% / 0.00%)] [347,337 / 1 (100.00%)]

Missing observations (375 / 0.11%)

Wind Direction

Calm Calm = 46,252
[46,252 (13.30% / 14.04%)] [0 / 0 (NA)]
NNE NNE = 13,838
[13,838 (3.98% / 4.20%)] [0 / 0 (NA)]
NE NE = 9,557
[9,557 (2.75% / 2.90%)] [0 / 0 (NA)]
ENE ENE = 9,264
[9,264 (2.66% / 2.81%)] [0 / 0 (NA)]
E E = 15,323
[15,323 (4.41% / 4.65%)] [0 / 0 (NA)]
ESE ESE = 29,469
[29,469 (8.48% / 8.94%)] [0 / 0 (NA)]
SE SE = 30,755
[30,755 (8.84% / 9.34%)] [0 / 0 (NA)]
SSE SSE = 19,960
[19,960 (5.74% / 6.06%)] [0 / 0 (NA)]
S S = 15,820
[15,820 (4.55% / 4.80%)] [0 / 0 (NA)]
SSW SSW = 8,312
[8,312 (2.39% / 2.52%)] [0 / 0 (NA)]
SW SW = 5,962
[5,962 (1.71% / 1.81%)] [0 / 0 (NA)]
WSW WSW = 7,046
[7,046 (2.03% / 2.14%)] [0 / 0 (NA)]
W W = 12,685
[12,685 (3.65% / 3.85%)] [0 / 0 (NA)]
WNW WNW = 23,839
[23,839 (6.86% / 7.24%)] [0 / 0 (NA)]
NW NW = 27,779
[27,779 (7.99% / 8.43%)] [0 / 0 (NA)]
NNW NNW = 27,221
[27,221 (7.83% / 8.26%)] [0 / 0 (NA)]
N N = 26,377
[26,377 (7.59% / 8.01%)] [0 / 0 (NA)]

Missing observations (18,253 / 5.25%)

Wind Speed

0.0m/s - 0.4m/s 0.0m/s - 0.4m/s = 47,672
[47,672 (13.71% / 14.47%)] [47,672 / 329,509 (14.47%)]
0.5m/s - 1.4m/s 0.5m/s - 1.4m/s = 110,137
[110,137 (31.67% / 33.42%)] [157,809 / 281,837 (47.89%)]
1.5m/s - 2.4m/s 1.5m/s - 2.4m/s = 81,606
[81,606 (23.47% / 24.77%)] [239,415 / 171,700 (72.66%)]
2.5m/s - 3.4m/s 2.5m/s - 3.4m/s = 40,353
[40,353 (11.61% / 12.25%)] [279,768 / 90,094 (84.90%)]
3.5m/s - 4.4m/s 3.5m/s - 4.4m/s = 21,512
[21,512 (6.19% / 6.53%)] [301,280 / 49,741 (91.43%)]
4.5m/s - 5.4m/s 4.5m/s - 5.4m/s = 11,780
[11,780 (3.39% / 3.58%)] [313,060 / 28,229 (95.01%)]
5.5m/s - 6.4m/s 5.5m/s - 6.4m/s = 6,963
[6,963 (2.00% / 2.11%)] [320,023 / 16,449 (97.12%)]
6.5m/s - 7.4m/s 6.5m/s - 7.4m/s = 4,087
[4,087 (1.18% / 1.24%)] [324,110 / 9,486 (98.36%)]
7.5m/s - 8.4m/s 7.5m/s - 8.4m/s = 2,519
[2,519 (0.72% / 0.76%)] [326,629 / 5,399 (99.13%)]
8.5m/s - 9.4m/s 8.5m/s - 9.4m/s = 1,473
[1,473 (0.42% / 0.45%)] [328,102 / 2,880 (99.57%)]
9.5m/s - 10.4m/s 9.5m/s - 10.4m/s = 766
[766 (0.22% / 0.23%)] [328,868 / 1,407 (99.81%)]
10.5m/s - 11.4m/s 10.5m/s - 11.4m/s = 348
[348 (0.10% / 0.11%)] [329,216 / 641 (99.91%)]
11.5m/s - 12.4m/s 11.5m/s - 12.4m/s = 168
[168 (0.05% / 0.05%)] [329,384 / 293 (99.96%)]
12.5m/s - 13.4m/s 12.5m/s - 13.4m/s = 87
[87 (0.03% / 0.03%)] [329,471 / 125 (99.99%)]
13.5m/s - 14.4m/s 13.5m/s - 14.4m/s = 18
[18 (0.01% / 0.01%)] [329,489 / 38 (99.99%)]
14.5m/s - 15.4m/s 14.5m/s - 15.4m/s = 13
[13 (0.00% / 0.00%)] [329,502 / 20 (100.00%)]
15.5m/s - 16.4m/s 15.5m/s - 16.4m/s = 3
[3 (0.00% / 0.00%)] [329,505 / 7 (100.00%)]
16.5m/s - 17.4m/s 16.5m/s - 17.4m/s = 2
[2 (0.00% / 0.00%)] [329,507 / 4 (100.00%)]
17.5m/s - 18.4m/s 17.5m/s - 18.4m/s = 1
[1 (0.00% / 0.00%)] [329,508 / 2 (100.00%)]
18.5m/s - 19.4m/s 18.5m/s - 19.4m/s = 1
[1 (0.00% / 0.00%)] [329,509 / 1 (100.00%)]

Missing observations (18,203 / 5.24%)

Temperature

-13.5C - -12.6C -13.5C - -12.6C = 2
[2 (0.00% / 0.00%)] [2 / 329,636 (0.00%)]
-12.5C - -11.6C -12.5C - -11.6C = 1
[1 (0.00% / 0.00%)] [3 / 329,634 (0.00%)]
-11.5C - -10.6C -11.5C - -10.6C = 1
[1 (0.00% / 0.00%)] [4 / 329,633 (0.00%)]
-10.5C - -9.6C -10.5C - -9.6C = 3
[3 (0.00% / 0.00%)] [7 / 329,632 (0.00%)]
-9.5C - -8.6C -9.5C - -8.6C = 10
[10 (0.00% / 0.00%)] [17 / 329,629 (0.01%)]
-8.5C - -7.6C -8.5C - -7.6C = 31
[31 (0.01% / 0.01%)] [48 / 329,619 (0.01%)]
-7.5C - -6.6C -7.5C - -6.6C = 70
[70 (0.02% / 0.02%)] [118 / 329,588 (0.04%)]
-6.5C - -5.6C -6.5C - -5.6C = 201
[201 (0.06% / 0.06%)] [319 / 329,518 (0.10%)]
-5.5C - -4.6C -5.5C - -4.6C = 493
[493 (0.14% / 0.15%)] [812 / 329,317 (0.25%)]
-4.5C - -3.6C -4.5C - -3.6C = 1,001
[1,001 (0.29% / 0.30%)] [1,813 / 328,824 (0.55%)]
-3.5C - -2.6C -3.5C - -2.6C = 1,766
[1,766 (0.51% / 0.54%)] [3,579 / 327,823 (1.09%)]
-2.5C - -1.6C -2.5C - -1.6C = 2,929
[2,929 (0.84% / 0.89%)] [6,508 / 326,057 (1.97%)]
-1.5C - -0.6C -1.5C - -0.6C = 4,029
[4,029 (1.16% / 1.22%)] [10,537 / 323,128 (3.20%)]
-0.5C - 0.4C -0.5C - 0.4C = 12,258
[12,258 (3.53% / 3.72%)] [22,795 / 319,099 (6.92%)]
0.5C - 1.4C 0.5C - 1.4C = 8,625
[8,625 (2.48% / 2.62%)] [31,420 / 306,841 (9.53%)]
1.5C - 2.4C 1.5C - 2.4C = 9,024
[9,024 (2.60% / 2.74%)] [40,444 / 298,216 (12.27%)]
2.5C - 3.4C 2.5C - 3.4C = 9,662
[9,662 (2.78% / 2.93%)] [50,106 / 289,192 (15.20%)]
3.5C - 4.4C 3.5C - 4.4C = 10,127
[10,127 (2.91% / 3.07%)] [60,233 / 279,530 (18.27%)]
4.5C - 5.4C 4.5C - 5.4C = 10,641
[10,641 (3.06% / 3.23%)] [70,874 / 269,403 (21.50%)]
5.5C - 6.4C 5.5C - 6.4C = 10,902
[10,902 (3.14% / 3.31%)] [81,776 / 258,762 (24.81%)]
6.5C - 7.4C 6.5C - 7.4C = 10,949
[10,949 (3.15% / 3.32%)] [92,725 / 247,860 (28.13%)]
7.5C - 8.4C 7.5C - 8.4C = 10,608
[10,608 (3.05% / 3.22%)] [103,333 / 236,911 (31.35%)]
8.5C - 9.4C 8.5C - 9.4C = 10,216
[10,216 (2.94% / 3.10%)] [113,549 / 226,303 (34.45%)]
9.5C - 10.4C 9.5C - 10.4C = 10,137
[10,137 (2.92% / 3.08%)] [123,686 / 216,087 (37.52%)]
10.5C - 11.4C 10.5C - 11.4C = 9,799
[9,799 (2.82% / 2.97%)] [133,485 / 205,950 (40.49%)]
11.5C - 12.4C 11.5C - 12.4C = 9,958
[9,958 (2.86% / 3.02%)] [143,443 / 196,151 (43.52%)]
12.5C - 13.4C 12.5C - 13.4C = 9,930
[9,930 (2.86% / 3.01%)] [153,373 / 186,193 (46.53%)]
13.5C - 14.4C 13.5C - 14.4C = 9,872
[9,872 (2.84% / 2.99%)] [163,245 / 176,263 (49.52%)]
14.5C - 15.4C 14.5C - 15.4C = 10,610
[10,610 (3.05% / 3.22%)] [173,855 / 166,391 (52.74%)]
15.5C - 16.4C 15.5C - 16.4C = 11,197
[11,197 (3.22% / 3.40%)] [185,052 / 155,781 (56.14%)]
16.5C - 17.4C 16.5C - 17.4C = 12,048
[12,048 (3.46% / 3.65%)] [197,100 / 144,584 (59.79%)]
17.5C - 18.4C 17.5C - 18.4C = 12,731
[12,731 (3.66% / 3.86%)] [209,831 / 132,536 (63.66%)]
18.5C - 19.4C 18.5C - 19.4C = 13,247
[13,247 (3.81% / 4.02%)] [223,078 / 119,805 (67.67%)]
19.5C - 20.4C 19.5C - 20.4C = 13,229
[13,229 (3.80% / 4.01%)] [236,307 / 106,558 (71.69%)]
20.5C - 21.4C 20.5C - 21.4C = 12,914
[12,914 (3.71% / 3.92%)] [249,221 / 93,329 (75.60%)]
21.5C - 22.4C 21.5C - 22.4C = 12,454
[12,454 (3.58% / 3.78%)] [261,675 / 80,415 (79.38%)]
22.5C - 23.4C 22.5C - 23.4C = 12,662
[12,662 (3.64% / 3.84%)] [274,337 / 67,961 (83.22%)]
23.5C - 24.4C 23.5C - 24.4C = 12,699
[12,699 (3.65% / 3.85%)] [287,036 / 55,299 (87.08%)]
24.5C - 25.4C 24.5C - 25.4C = 10,751
[10,751 (3.09% / 3.26%)] [297,787 / 42,600 (90.34%)]
25.5C - 26.4C 25.5C - 26.4C = 8,215
[8,215 (2.36% / 2.49%)] [306,002 / 31,849 (92.83%)]
26.5C - 27.4C 26.5C - 27.4C = 5,951
[5,951 (1.71% / 1.81%)] [311,953 / 23,634 (94.64%)]
27.5C - 28.4C 27.5C - 28.4C = 4,744
[4,744 (1.36% / 1.44%)] [316,697 / 17,683 (96.07%)]
28.5C - 29.4C 28.5C - 29.4C = 3,716
[3,716 (1.07% / 1.13%)] [320,413 / 12,939 (97.20%)]
29.5C - 30.4C 29.5C - 30.4C = 3,153
[3,153 (0.91% / 0.96%)] [323,566 / 9,223 (98.16%)]
30.5C - 31.4C 30.5C - 31.4C = 2,469
[2,469 (0.71% / 0.75%)] [326,035 / 6,070 (98.91%)]
31.5C - 32.4C 31.5C - 32.4C = 1,868
[1,868 (0.54% / 0.57%)] [327,903 / 3,601 (99.47%)]
32.5C - 33.4C 32.5C - 33.4C = 1,112
[1,112 (0.32% / 0.34%)] [329,015 / 1,733 (99.81%)]
33.5C - 34.4C 33.5C - 34.4C = 447
[447 (0.13% / 0.14%)] [329,462 / 621 (99.95%)]
34.5C - 35.4C 34.5C - 35.4C = 137
[137 (0.04% / 0.04%)] [329,599 / 174 (99.99%)]
35.5C - 36.4C 35.5C - 36.4C = 34
[34 (0.01% / 0.01%)] [329,633 / 37 (100.00%)]
36.5C - 37.4C 36.5C - 37.4C = 3
[3 (0.00% / 0.00%)] [329,636 / 3 (100.00%)]

Missing observations (18,076 / 5.20%)

Sunshine Duration

0.0h 0.0h = 233,145
[233,145 (67.05% / 70.87%)] [233,145 / 328,968 (70.87%)]
0.1h 0.1h = 6,585
[6,585 (1.89% / 2.00%)] [239,730 / 95,823 (72.87%)]
0.2h 0.2h = 5,092
[5,092 (1.46% / 1.55%)] [244,822 / 89,238 (74.42%)]
0.3h 0.3h = 4,486
[4,486 (1.29% / 1.36%)] [249,308 / 84,146 (75.78%)]
0.4h 0.4h = 4,252
[4,252 (1.22% / 1.29%)] [253,560 / 79,660 (77.08%)]
0.5h 0.5h = 4,270
[4,270 (1.23% / 1.30%)] [257,830 / 75,408 (78.38%)]
0.6h 0.6h = 4,298
[4,298 (1.24% / 1.31%)] [262,128 / 71,138 (79.68%)]
0.7h 0.7h = 4,605
[4,605 (1.32% / 1.40%)] [266,733 / 66,840 (81.08%)]
0.8h 0.8h = 5,147
[5,147 (1.48% / 1.56%)] [271,880 / 62,235 (82.65%)]
0.9h 0.9h = 6,932
[6,932 (1.99% / 2.11%)] [278,812 / 57,088 (84.75%)]
1.0h 1.0h = 50,156
[50,156 (14.42% / 15.25%)] [328,968 / 50,156 (100.00%)]

Missing observations (18,744 / 5.39%)