Station Number 40311
Prefecture Ibaraki [ Local Portal ]
Location 茨城県鉾田市安房 (HOKOTA SHI, IBARAKI KEN)
Months of Observations 452
Number of Observations 329,438
Period of Observations
Period Name Lat. Long. Height Anemometer
1978/01/31 -- 1986/10/28 HOKOTA 36.168N 140.527E 32m 6.5m
1986/10/29 -- 2005/12/21 HOKOTA 36.168N 140.527E 32m 6.5m
2005/12/22 -- 2010/02/08 HOKOTA 36.168N 140.527E 32m 6.5m
2010/02/09 -- 2015/08/99 HOKOTA 36.168N 140.527E 32m 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
40251 MINORI (Ibaraki) 19.71km 292deg.
40201 MITO (Ibaraki) 24.13km 347deg.
40900 MITO (Ibaraki) 24.13km 347deg.
40406 KASHIMA (Ibaraki) 24.30km 159deg.
40246 ATAGOSAN (Ibaraki) 27.95km 299deg.
40341 TSUCHIURA (Ibaraki) 28.56km 255deg.
45036 SAWARA (Chiba) 28.80km 186deg.
40391 EDOSAKI (Ibaraki) 29.67km 218deg.

Statistics for the Whole Period

Precipitation

0.0mm - 0.4mm 0.0mm - 0.4mm = 306,163
[306,163 (92.93% / 93.22%)] [306,163 / 328,414 (93.22%)]
0.5mm - 1.4mm 0.5mm - 1.4mm = 11,869
[11,869 (3.60% / 3.61%)] [318,032 / 22,251 (96.84%)]
1.5mm - 2.4mm 1.5mm - 2.4mm = 4,457
[4,457 (1.35% / 1.36%)] [322,489 / 10,382 (98.20%)]
2.5mm - 3.4mm 2.5mm - 3.4mm = 2,175
[2,175 (0.66% / 0.66%)] [324,664 / 5,925 (98.86%)]
3.5mm - 4.4mm 3.5mm - 4.4mm = 1,150
[1,150 (0.35% / 0.35%)] [325,814 / 3,750 (99.21%)]
4.5mm - 5.4mm 4.5mm - 5.4mm = 749
[749 (0.23% / 0.23%)] [326,563 / 2,600 (99.44%)]
5.5mm - 6.4mm 5.5mm - 6.4mm = 468
[468 (0.14% / 0.14%)] [327,031 / 1,851 (99.58%)]
6.5mm - 7.4mm 6.5mm - 7.4mm = 305
[305 (0.09% / 0.09%)] [327,336 / 1,383 (99.67%)]
7.5mm - 8.4mm 7.5mm - 8.4mm = 225
[225 (0.07% / 0.07%)] [327,561 / 1,078 (99.74%)]
8.5mm - 9.4mm 8.5mm - 9.4mm = 165
[165 (0.05% / 0.05%)] [327,726 / 853 (99.79%)]
9.5mm - 10.4mm 9.5mm - 10.4mm = 143
[143 (0.04% / 0.04%)] [327,869 / 688 (99.83%)]
10.5mm - 11.4mm 10.5mm - 11.4mm = 120
[120 (0.04% / 0.04%)] [327,989 / 545 (99.87%)]
11.5mm - 12.4mm 11.5mm - 12.4mm = 81
[81 (0.02% / 0.02%)] [328,070 / 425 (99.90%)]
12.5mm - 13.4mm 12.5mm - 13.4mm = 63
[63 (0.02% / 0.02%)] [328,133 / 344 (99.91%)]
13.5mm - 14.4mm 13.5mm - 14.4mm = 36
[36 (0.01% / 0.01%)] [328,169 / 281 (99.93%)]
14.5mm - 15.4mm 14.5mm - 15.4mm = 36
[36 (0.01% / 0.01%)] [328,205 / 245 (99.94%)]
15.5mm - 16.4mm 15.5mm - 16.4mm = 34
[34 (0.01% / 0.01%)] [328,239 / 209 (99.95%)]
16.5mm - 17.4mm 16.5mm - 17.4mm = 26
[26 (0.01% / 0.01%)] [328,265 / 175 (99.95%)]
17.5mm - 18.4mm 17.5mm - 18.4mm = 19
[19 (0.01% / 0.01%)] [328,284 / 149 (99.96%)]
18.5mm - 19.4mm 18.5mm - 19.4mm = 20
[20 (0.01% / 0.01%)] [328,304 / 130 (99.97%)]
19.5mm - 20.4mm 19.5mm - 20.4mm = 20
[20 (0.01% / 0.01%)] [328,324 / 110 (99.97%)]
20.5mm - 21.4mm 20.5mm - 21.4mm = 10
[10 (0.00% / 0.00%)] [328,334 / 90 (99.98%)]
21.5mm - 22.4mm 21.5mm - 22.4mm = 10
[10 (0.00% / 0.00%)] [328,344 / 80 (99.98%)]
22.5mm - 23.4mm 22.5mm - 23.4mm = 5
[5 (0.00% / 0.00%)] [328,349 / 70 (99.98%)]
23.5mm - 24.4mm 23.5mm - 24.4mm = 4
[4 (0.00% / 0.00%)] [328,353 / 65 (99.98%)]
24.5mm - 25.4mm 24.5mm - 25.4mm = 4
[4 (0.00% / 0.00%)] [328,357 / 61 (99.98%)]
25.5mm - 26.4mm 25.5mm - 26.4mm = 7
[7 (0.00% / 0.00%)] [328,364 / 57 (99.98%)]
26.5mm - 27.4mm 26.5mm - 27.4mm = 7
[7 (0.00% / 0.00%)] [328,371 / 50 (99.99%)]
27.5mm - 28.4mm 27.5mm - 28.4mm = 3
[3 (0.00% / 0.00%)] [328,374 / 43 (99.99%)]
28.5mm - 29.4mm 28.5mm - 29.4mm = 2
[2 (0.00% / 0.00%)] [328,376 / 40 (99.99%)]
29.5mm - 30.4mm 29.5mm - 30.4mm = 5
[5 (0.00% / 0.00%)] [328,381 / 38 (99.99%)]
31.5mm - 32.4mm 31.5mm - 32.4mm = 3
[3 (0.00% / 0.00%)] [328,384 / 33 (99.99%)]
32.5mm - 33.4mm 32.5mm - 33.4mm = 2
[2 (0.00% / 0.00%)] [328,386 / 30 (99.99%)]
33.5mm - 34.4mm 33.5mm - 34.4mm = 1
[1 (0.00% / 0.00%)] [328,387 / 28 (99.99%)]
34.5mm - 35.4mm 34.5mm - 35.4mm = 1
[1 (0.00% / 0.00%)] [328,388 / 27 (99.99%)]
35.5mm - 36.4mm 35.5mm - 36.4mm = 1
[1 (0.00% / 0.00%)] [328,389 / 26 (99.99%)]
36.5mm - 37.4mm 36.5mm - 37.4mm = 2
[2 (0.00% / 0.00%)] [328,391 / 25 (99.99%)]
37.5mm - 38.4mm 37.5mm - 38.4mm = 2
[2 (0.00% / 0.00%)] [328,393 / 23 (99.99%)]
38.5mm - 39.4mm 38.5mm - 39.4mm = 1
[1 (0.00% / 0.00%)] [328,394 / 21 (99.99%)]
39.5mm - 40.4mm 39.5mm - 40.4mm = 3
[3 (0.00% / 0.00%)] [328,397 / 20 (99.99%)]
40.5mm - 41.4mm 40.5mm - 41.4mm = 3
[3 (0.00% / 0.00%)] [328,400 / 17 (100.00%)]
41.5mm - 42.4mm 41.5mm - 42.4mm = 3
[3 (0.00% / 0.00%)] [328,403 / 14 (100.00%)]
42.5mm - 43.4mm 42.5mm - 43.4mm = 2
[2 (0.00% / 0.00%)] [328,405 / 11 (100.00%)]
43.5mm - 44.4mm 43.5mm - 44.4mm = 2
[2 (0.00% / 0.00%)] [328,407 / 9 (100.00%)]
45.5mm - 46.4mm 45.5mm - 46.4mm = 1
[1 (0.00% / 0.00%)] [328,408 / 7 (100.00%)]
47.5mm - 48.4mm 47.5mm - 48.4mm = 3
[3 (0.00% / 0.00%)] [328,411 / 6 (100.00%)]
49.5mm - 50.4mm 49.5mm - 50.4mm = 1
[1 (0.00% / 0.00%)] [328,412 / 3 (100.00%)]
52.5mm - 53.4mm 52.5mm - 53.4mm = 2
[2 (0.00% / 0.00%)] [328,414 / 2 (100.00%)]

Missing observations (1,024 / 0.31%)

Wind Direction

Calm Calm = 60,070
[60,070 (18.23% / 18.31%)] [0 / 0 (NA)]
NNE NNE = 17,192
[17,192 (5.22% / 5.24%)] [0 / 0 (NA)]
NE NE = 44,103
[44,103 (13.39% / 13.44%)] [0 / 0 (NA)]
ENE ENE = 24,429
[24,429 (7.42% / 7.44%)] [0 / 0 (NA)]
E E = 9,620
[9,620 (2.92% / 2.93%)] [0 / 0 (NA)]
ESE ESE = 14,268
[14,268 (4.33% / 4.35%)] [0 / 0 (NA)]
SE SE = 11,033
[11,033 (3.35% / 3.36%)] [0 / 0 (NA)]
SSE SSE = 7,997
[7,997 (2.43% / 2.44%)] [0 / 0 (NA)]
S S = 18,017
[18,017 (5.47% / 5.49%)] [0 / 0 (NA)]
SSW SSW = 20,273
[20,273 (6.15% / 6.18%)] [0 / 0 (NA)]
SW SW = 8,768
[8,768 (2.66% / 2.67%)] [0 / 0 (NA)]
WSW WSW = 4,307
[4,307 (1.31% / 1.31%)] [0 / 0 (NA)]
W W = 4,631
[4,631 (1.41% / 1.41%)] [0 / 0 (NA)]
WNW WNW = 6,755
[6,755 (2.05% / 2.06%)] [0 / 0 (NA)]
NW NW = 15,466
[15,466 (4.69% / 4.71%)] [0 / 0 (NA)]
NNW NNW = 38,352
[38,352 (11.64% / 11.69%)] [0 / 0 (NA)]
N N = 22,858
[22,858 (6.94% / 6.97%)] [0 / 0 (NA)]

Missing observations (1,299 / 0.39%)

Wind Speed

0.0m/s - 0.4m/s 0.0m/s - 0.4m/s = 63,007
[63,007 (19.13% / 19.20%)] [63,007 / 328,204 (19.20%)]
0.5m/s - 1.4m/s 0.5m/s - 1.4m/s = 98,184
[98,184 (29.80% / 29.92%)] [161,191 / 265,197 (49.11%)]
1.5m/s - 2.4m/s 1.5m/s - 2.4m/s = 84,279
[84,279 (25.58% / 25.68%)] [245,470 / 167,013 (74.79%)]
2.5m/s - 3.4m/s 2.5m/s - 3.4m/s = 50,474
[50,474 (15.32% / 15.38%)] [295,944 / 82,734 (90.17%)]
3.5m/s - 4.4m/s 3.5m/s - 4.4m/s = 21,592
[21,592 (6.55% / 6.58%)] [317,536 / 32,260 (96.75%)]
4.5m/s - 5.4m/s 4.5m/s - 5.4m/s = 7,135
[7,135 (2.17% / 2.17%)] [324,671 / 10,668 (98.92%)]
5.5m/s - 6.4m/s 5.5m/s - 6.4m/s = 2,332
[2,332 (0.71% / 0.71%)] [327,003 / 3,533 (99.63%)]
6.5m/s - 7.4m/s 6.5m/s - 7.4m/s = 751
[751 (0.23% / 0.23%)] [327,754 / 1,201 (99.86%)]
7.5m/s - 8.4m/s 7.5m/s - 8.4m/s = 284
[284 (0.09% / 0.09%)] [328,038 / 450 (99.95%)]
8.5m/s - 9.4m/s 8.5m/s - 9.4m/s = 117
[117 (0.04% / 0.04%)] [328,155 / 166 (99.99%)]
9.5m/s - 10.4m/s 9.5m/s - 10.4m/s = 34
[34 (0.01% / 0.01%)] [328,189 / 49 (100.00%)]
10.5m/s - 11.4m/s 10.5m/s - 11.4m/s = 9
[9 (0.00% / 0.00%)] [328,198 / 15 (100.00%)]
11.5m/s - 12.4m/s 11.5m/s - 12.4m/s = 1
[1 (0.00% / 0.00%)] [328,199 / 6 (100.00%)]
12.5m/s - 13.4m/s 12.5m/s - 13.4m/s = 2
[2 (0.00% / 0.00%)] [328,201 / 5 (100.00%)]
13.5m/s - 14.4m/s 13.5m/s - 14.4m/s = 2
[2 (0.00% / 0.00%)] [328,203 / 3 (100.00%)]
14.5m/s - 15.4m/s 14.5m/s - 15.4m/s = 1
[1 (0.00% / 0.00%)] [328,204 / 1 (100.00%)]

Missing observations (1,234 / 0.37%)

Temperature

-10.5C - -9.6C -10.5C - -9.6C = 1
[1 (0.00% / 0.00%)] [1 / 328,100 (0.00%)]
-9.5C - -8.6C -9.5C - -8.6C = 11
[11 (0.00% / 0.00%)] [12 / 328,099 (0.00%)]
-8.5C - -7.6C -8.5C - -7.6C = 88
[88 (0.03% / 0.03%)] [100 / 328,088 (0.03%)]
-7.5C - -6.6C -7.5C - -6.6C = 236
[236 (0.07% / 0.07%)] [336 / 328,000 (0.10%)]
-6.5C - -5.6C -6.5C - -5.6C = 533
[533 (0.16% / 0.16%)] [869 / 327,764 (0.26%)]
-5.5C - -4.6C -5.5C - -4.6C = 974
[974 (0.30% / 0.30%)] [1,843 / 327,231 (0.56%)]
-4.5C - -3.6C -4.5C - -3.6C = 1,599
[1,599 (0.49% / 0.49%)] [3,442 / 326,257 (1.05%)]
-3.5C - -2.6C -3.5C - -2.6C = 2,577
[2,577 (0.78% / 0.79%)] [6,019 / 324,658 (1.83%)]
-2.5C - -1.6C -2.5C - -1.6C = 3,936
[3,936 (1.19% / 1.20%)] [9,955 / 322,081 (3.03%)]
-1.5C - -0.6C -1.5C - -0.6C = 5,349
[5,349 (1.62% / 1.63%)] [15,304 / 318,145 (4.66%)]
-0.5C - 0.4C -0.5C - 0.4C = 12,053
[12,053 (3.66% / 3.67%)] [27,357 / 312,796 (8.34%)]
0.5C - 1.4C 0.5C - 1.4C = 7,137
[7,137 (2.17% / 2.18%)] [34,494 / 300,743 (10.51%)]
1.5C - 2.4C 1.5C - 2.4C = 7,931
[7,931 (2.41% / 2.42%)] [42,425 / 293,606 (12.93%)]
2.5C - 3.4C 2.5C - 3.4C = 8,670
[8,670 (2.63% / 2.64%)] [51,095 / 285,675 (15.57%)]
3.5C - 4.4C 3.5C - 4.4C = 9,715
[9,715 (2.95% / 2.96%)] [60,810 / 277,005 (18.53%)]
4.5C - 5.4C 4.5C - 5.4C = 10,360
[10,360 (3.14% / 3.16%)] [71,170 / 267,290 (21.69%)]
5.5C - 6.4C 5.5C - 6.4C = 10,920
[10,920 (3.31% / 3.33%)] [82,090 / 256,930 (25.02%)]
6.5C - 7.4C 6.5C - 7.4C = 11,489
[11,489 (3.49% / 3.50%)] [93,579 / 246,010 (28.52%)]
7.5C - 8.4C 7.5C - 8.4C = 11,246
[11,246 (3.41% / 3.43%)] [104,825 / 234,521 (31.95%)]
8.5C - 9.4C 8.5C - 9.4C = 11,108
[11,108 (3.37% / 3.39%)] [115,933 / 223,275 (35.33%)]
9.5C - 10.4C 9.5C - 10.4C = 10,664
[10,664 (3.24% / 3.25%)] [126,597 / 212,167 (38.58%)]
10.5C - 11.4C 10.5C - 11.4C = 10,359
[10,359 (3.14% / 3.16%)] [136,956 / 201,503 (41.74%)]
11.5C - 12.4C 11.5C - 12.4C = 10,339
[10,339 (3.14% / 3.15%)] [147,295 / 191,144 (44.89%)]
12.5C - 13.4C 12.5C - 13.4C = 10,508
[10,508 (3.19% / 3.20%)] [157,803 / 180,805 (48.10%)]
13.5C - 14.4C 13.5C - 14.4C = 11,062
[11,062 (3.36% / 3.37%)] [168,865 / 170,297 (51.47%)]
14.5C - 15.4C 14.5C - 15.4C = 11,518
[11,518 (3.50% / 3.51%)] [180,383 / 159,235 (54.98%)]
15.5C - 16.4C 15.5C - 16.4C = 12,322
[12,322 (3.74% / 3.76%)] [192,705 / 147,717 (58.73%)]
16.5C - 17.4C 16.5C - 17.4C = 13,270
[13,270 (4.03% / 4.04%)] [205,975 / 135,395 (62.78%)]
17.5C - 18.4C 17.5C - 18.4C = 13,711
[13,711 (4.16% / 4.18%)] [219,686 / 122,125 (66.96%)]
18.5C - 19.4C 18.5C - 19.4C = 13,562
[13,562 (4.12% / 4.13%)] [233,248 / 108,414 (71.09%)]
19.5C - 20.4C 19.5C - 20.4C = 13,663
[13,663 (4.15% / 4.16%)] [246,911 / 94,852 (75.25%)]
20.5C - 21.4C 20.5C - 21.4C = 12,926
[12,926 (3.92% / 3.94%)] [259,837 / 81,189 (79.19%)]
21.5C - 22.4C 21.5C - 22.4C = 12,218
[12,218 (3.71% / 3.72%)] [272,055 / 68,263 (82.92%)]
22.5C - 23.4C 22.5C - 23.4C = 11,690
[11,690 (3.55% / 3.56%)] [283,745 / 56,045 (86.48%)]
23.5C - 24.4C 23.5C - 24.4C = 10,188
[10,188 (3.09% / 3.11%)] [293,933 / 44,355 (89.59%)]
24.5C - 25.4C 24.5C - 25.4C = 8,495
[8,495 (2.58% / 2.59%)] [302,428 / 34,167 (92.18%)]
25.5C - 26.4C 25.5C - 26.4C = 6,488
[6,488 (1.97% / 1.98%)] [308,916 / 25,672 (94.15%)]
26.5C - 27.4C 26.5C - 27.4C = 4,977
[4,977 (1.51% / 1.52%)] [313,893 / 19,184 (95.67%)]
27.5C - 28.4C 27.5C - 28.4C = 3,639
[3,639 (1.10% / 1.11%)] [317,532 / 14,207 (96.78%)]
28.5C - 29.4C 28.5C - 29.4C = 2,955
[2,955 (0.90% / 0.90%)] [320,487 / 10,568 (97.68%)]
29.5C - 30.4C 29.5C - 30.4C = 2,402
[2,402 (0.73% / 0.73%)] [322,889 / 7,613 (98.41%)]
30.5C - 31.4C 30.5C - 31.4C = 1,985
[1,985 (0.60% / 0.60%)] [324,874 / 5,211 (99.02%)]
31.5C - 32.4C 31.5C - 32.4C = 1,423
[1,423 (0.43% / 0.43%)] [326,297 / 3,226 (99.45%)]
32.5C - 33.4C 32.5C - 33.4C = 968
[968 (0.29% / 0.30%)] [327,265 / 1,803 (99.75%)]
33.5C - 34.4C 33.5C - 34.4C = 506
[506 (0.15% / 0.15%)] [327,771 / 835 (99.90%)]
34.5C - 35.4C 34.5C - 35.4C = 254
[254 (0.08% / 0.08%)] [328,025 / 329 (99.98%)]
35.5C - 36.4C 35.5C - 36.4C = 64
[64 (0.02% / 0.02%)] [328,089 / 75 (100.00%)]
36.5C - 37.4C 36.5C - 37.4C = 11
[11 (0.00% / 0.00%)] [328,100 / 11 (100.00%)]

Missing observations (1,338 / 0.41%)

Sunshine Duration

0.0h 0.0h = 232,445
[232,445 (70.56% / 70.79%)] [232,445 / 328,365 (70.79%)]
0.1h 0.1h = 7,046
[7,046 (2.14% / 2.15%)] [239,491 / 95,920 (72.93%)]
0.2h 0.2h = 5,163
[5,163 (1.57% / 1.57%)] [244,654 / 88,874 (74.51%)]
0.3h 0.3h = 4,529
[4,529 (1.37% / 1.38%)] [249,183 / 83,711 (75.89%)]
0.4h 0.4h = 4,198
[4,198 (1.27% / 1.28%)] [253,381 / 79,182 (77.16%)]
0.5h 0.5h = 4,136
[4,136 (1.26% / 1.26%)] [257,517 / 74,984 (78.42%)]
0.6h 0.6h = 4,336
[4,336 (1.32% / 1.32%)] [261,853 / 70,848 (79.74%)]
0.7h 0.7h = 4,774
[4,774 (1.45% / 1.45%)] [266,627 / 66,512 (81.20%)]
0.8h 0.8h = 5,611
[5,611 (1.70% / 1.71%)] [272,238 / 61,738 (82.91%)]
0.9h 0.9h = 7,085
[7,085 (2.15% / 2.16%)] [279,323 / 56,127 (85.06%)]
1.0h 1.0h = 49,042
[49,042 (14.89% / 14.94%)] [328,365 / 49,042 (100.00%)]

Missing observations (1,073 / 0.33%)