Station Number 40311
Prefecture Ibaraki [ Local Portal ]
Location 茨城県鉾田市安房 (HOKOTA SHI, IBARAKI KEN)
Months of Observations 464
Number of Observations 338,222
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 -- 2016/08/99 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 = 314,278
[314,278 (92.92% / 93.20%)] [314,278 / 337,198 (93.20%)]
0.5mm - 1.4mm 0.5mm - 1.4mm = 12,215
[12,215 (3.61% / 3.62%)] [326,493 / 22,920 (96.83%)]
1.5mm - 2.4mm 1.5mm - 2.4mm = 4,599
[4,599 (1.36% / 1.36%)] [331,092 / 10,705 (98.19%)]
2.5mm - 3.4mm 2.5mm - 3.4mm = 2,248
[2,248 (0.66% / 0.67%)] [333,340 / 6,106 (98.86%)]
3.5mm - 4.4mm 3.5mm - 4.4mm = 1,184
[1,184 (0.35% / 0.35%)] [334,524 / 3,858 (99.21%)]
4.5mm - 5.4mm 4.5mm - 5.4mm = 767
[767 (0.23% / 0.23%)] [335,291 / 2,674 (99.43%)]
5.5mm - 6.4mm 5.5mm - 6.4mm = 482
[482 (0.14% / 0.14%)] [335,773 / 1,907 (99.58%)]
6.5mm - 7.4mm 6.5mm - 7.4mm = 312
[312 (0.09% / 0.09%)] [336,085 / 1,425 (99.67%)]
7.5mm - 8.4mm 7.5mm - 8.4mm = 233
[233 (0.07% / 0.07%)] [336,318 / 1,113 (99.74%)]
8.5mm - 9.4mm 8.5mm - 9.4mm = 170
[170 (0.05% / 0.05%)] [336,488 / 880 (99.79%)]
9.5mm - 10.4mm 9.5mm - 10.4mm = 147
[147 (0.04% / 0.04%)] [336,635 / 710 (99.83%)]
10.5mm - 11.4mm 10.5mm - 11.4mm = 124
[124 (0.04% / 0.04%)] [336,759 / 563 (99.87%)]
11.5mm - 12.4mm 11.5mm - 12.4mm = 83
[83 (0.02% / 0.02%)] [336,842 / 439 (99.89%)]
12.5mm - 13.4mm 12.5mm - 13.4mm = 65
[65 (0.02% / 0.02%)] [336,907 / 356 (99.91%)]
13.5mm - 14.4mm 13.5mm - 14.4mm = 37
[37 (0.01% / 0.01%)] [336,944 / 291 (99.92%)]
14.5mm - 15.4mm 14.5mm - 15.4mm = 37
[37 (0.01% / 0.01%)] [336,981 / 254 (99.94%)]
15.5mm - 16.4mm 15.5mm - 16.4mm = 34
[34 (0.01% / 0.01%)] [337,015 / 217 (99.95%)]
16.5mm - 17.4mm 16.5mm - 17.4mm = 27
[27 (0.01% / 0.01%)] [337,042 / 183 (99.95%)]
17.5mm - 18.4mm 17.5mm - 18.4mm = 19
[19 (0.01% / 0.01%)] [337,061 / 156 (99.96%)]
18.5mm - 19.4mm 18.5mm - 19.4mm = 22
[22 (0.01% / 0.01%)] [337,083 / 137 (99.97%)]
19.5mm - 20.4mm 19.5mm - 20.4mm = 21
[21 (0.01% / 0.01%)] [337,104 / 115 (99.97%)]
20.5mm - 21.4mm 20.5mm - 21.4mm = 10
[10 (0.00% / 0.00%)] [337,114 / 94 (99.98%)]
21.5mm - 22.4mm 21.5mm - 22.4mm = 11
[11 (0.00% / 0.00%)] [337,125 / 84 (99.98%)]
22.5mm - 23.4mm 22.5mm - 23.4mm = 5
[5 (0.00% / 0.00%)] [337,130 / 73 (99.98%)]
23.5mm - 24.4mm 23.5mm - 24.4mm = 4
[4 (0.00% / 0.00%)] [337,134 / 68 (99.98%)]
24.5mm - 25.4mm 24.5mm - 25.4mm = 5
[5 (0.00% / 0.00%)] [337,139 / 64 (99.98%)]
25.5mm - 26.4mm 25.5mm - 26.4mm = 7
[7 (0.00% / 0.00%)] [337,146 / 59 (99.98%)]
26.5mm - 27.4mm 26.5mm - 27.4mm = 7
[7 (0.00% / 0.00%)] [337,153 / 52 (99.99%)]
27.5mm - 28.4mm 27.5mm - 28.4mm = 3
[3 (0.00% / 0.00%)] [337,156 / 45 (99.99%)]
28.5mm - 29.4mm 28.5mm - 29.4mm = 2
[2 (0.00% / 0.00%)] [337,158 / 42 (99.99%)]
29.5mm - 30.4mm 29.5mm - 30.4mm = 5
[5 (0.00% / 0.00%)] [337,163 / 40 (99.99%)]
31.5mm - 32.4mm 31.5mm - 32.4mm = 3
[3 (0.00% / 0.00%)] [337,166 / 35 (99.99%)]
32.5mm - 33.4mm 32.5mm - 33.4mm = 3
[3 (0.00% / 0.00%)] [337,169 / 32 (99.99%)]
33.5mm - 34.4mm 33.5mm - 34.4mm = 1
[1 (0.00% / 0.00%)] [337,170 / 29 (99.99%)]
34.5mm - 35.4mm 34.5mm - 35.4mm = 1
[1 (0.00% / 0.00%)] [337,171 / 28 (99.99%)]
35.5mm - 36.4mm 35.5mm - 36.4mm = 1
[1 (0.00% / 0.00%)] [337,172 / 27 (99.99%)]
36.5mm - 37.4mm 36.5mm - 37.4mm = 2
[2 (0.00% / 0.00%)] [337,174 / 26 (99.99%)]
37.5mm - 38.4mm 37.5mm - 38.4mm = 2
[2 (0.00% / 0.00%)] [337,176 / 24 (99.99%)]
38.5mm - 39.4mm 38.5mm - 39.4mm = 1
[1 (0.00% / 0.00%)] [337,177 / 22 (99.99%)]
39.5mm - 40.4mm 39.5mm - 40.4mm = 3
[3 (0.00% / 0.00%)] [337,180 / 21 (99.99%)]
40.5mm - 41.4mm 40.5mm - 41.4mm = 3
[3 (0.00% / 0.00%)] [337,183 / 18 (100.00%)]
41.5mm - 42.4mm 41.5mm - 42.4mm = 4
[4 (0.00% / 0.00%)] [337,187 / 15 (100.00%)]
42.5mm - 43.4mm 42.5mm - 43.4mm = 2
[2 (0.00% / 0.00%)] [337,189 / 11 (100.00%)]
43.5mm - 44.4mm 43.5mm - 44.4mm = 2
[2 (0.00% / 0.00%)] [337,191 / 9 (100.00%)]
45.5mm - 46.4mm 45.5mm - 46.4mm = 1
[1 (0.00% / 0.00%)] [337,192 / 7 (100.00%)]
47.5mm - 48.4mm 47.5mm - 48.4mm = 3
[3 (0.00% / 0.00%)] [337,195 / 6 (100.00%)]
49.5mm - 50.4mm 49.5mm - 50.4mm = 1
[1 (0.00% / 0.00%)] [337,196 / 3 (100.00%)]
52.5mm - 53.4mm 52.5mm - 53.4mm = 2
[2 (0.00% / 0.00%)] [337,198 / 2 (100.00%)]

Missing observations (1,024 / 0.30%)

Wind Direction

Calm Calm = 60,634
[60,634 (17.93% / 18.00%)] [0 / 0 (NA)]
NNE NNE = 17,670
[17,670 (5.22% / 5.24%)] [0 / 0 (NA)]
NE NE = 45,415
[45,415 (13.43% / 13.48%)] [0 / 0 (NA)]
ENE ENE = 25,428
[25,428 (7.52% / 7.55%)] [0 / 0 (NA)]
E E = 10,007
[10,007 (2.96% / 2.97%)] [0 / 0 (NA)]
ESE ESE = 14,720
[14,720 (4.35% / 4.37%)] [0 / 0 (NA)]
SE SE = 11,334
[11,334 (3.35% / 3.36%)] [0 / 0 (NA)]
SSE SSE = 8,345
[8,345 (2.47% / 2.48%)] [0 / 0 (NA)]
S S = 18,410
[18,410 (5.44% / 5.46%)] [0 / 0 (NA)]
SSW SSW = 20,706
[20,706 (6.12% / 6.15%)] [0 / 0 (NA)]
SW SW = 9,108
[9,108 (2.69% / 2.70%)] [0 / 0 (NA)]
WSW WSW = 4,581
[4,581 (1.35% / 1.36%)] [0 / 0 (NA)]
W W = 4,866
[4,866 (1.44% / 1.44%)] [0 / 0 (NA)]
WNW WNW = 6,918
[6,918 (2.05% / 2.05%)] [0 / 0 (NA)]
NW NW = 15,793
[15,793 (4.67% / 4.69%)] [0 / 0 (NA)]
NNW NNW = 39,498
[39,498 (11.68% / 11.72%)] [0 / 0 (NA)]
N N = 23,487
[23,487 (6.94% / 6.97%)] [0 / 0 (NA)]

Missing observations (1,302 / 0.38%)

Wind Speed

0.0m/s - 0.4m/s 0.0m/s - 0.4m/s = 64,002
[64,002 (18.92% / 18.99%)] [64,002 / 336,985 (18.99%)]
0.5m/s - 1.4m/s 0.5m/s - 1.4m/s = 101,061
[101,061 (29.88% / 29.99%)] [165,063 / 272,983 (48.98%)]
1.5m/s - 2.4m/s 1.5m/s - 2.4m/s = 86,817
[86,817 (25.67% / 25.76%)] [251,880 / 171,922 (74.75%)]
2.5m/s - 3.4m/s 2.5m/s - 3.4m/s = 52,071
[52,071 (15.40% / 15.45%)] [303,951 / 85,105 (90.20%)]
3.5m/s - 4.4m/s 3.5m/s - 4.4m/s = 22,164
[22,164 (6.55% / 6.58%)] [326,115 / 33,034 (96.77%)]
4.5m/s - 5.4m/s 4.5m/s - 5.4m/s = 7,278
[7,278 (2.15% / 2.16%)] [333,393 / 10,870 (98.93%)]
5.5m/s - 6.4m/s 5.5m/s - 6.4m/s = 2,370
[2,370 (0.70% / 0.70%)] [335,763 / 3,592 (99.64%)]
6.5m/s - 7.4m/s 6.5m/s - 7.4m/s = 763
[763 (0.23% / 0.23%)] [336,526 / 1,222 (99.86%)]
7.5m/s - 8.4m/s 7.5m/s - 8.4m/s = 291
[291 (0.09% / 0.09%)] [336,817 / 459 (99.95%)]
8.5m/s - 9.4m/s 8.5m/s - 9.4m/s = 118
[118 (0.03% / 0.04%)] [336,935 / 168 (99.99%)]
9.5m/s - 10.4m/s 9.5m/s - 10.4m/s = 35
[35 (0.01% / 0.01%)] [336,970 / 50 (100.00%)]
10.5m/s - 11.4m/s 10.5m/s - 11.4m/s = 9
[9 (0.00% / 0.00%)] [336,979 / 15 (100.00%)]
11.5m/s - 12.4m/s 11.5m/s - 12.4m/s = 1
[1 (0.00% / 0.00%)] [336,980 / 6 (100.00%)]
12.5m/s - 13.4m/s 12.5m/s - 13.4m/s = 2
[2 (0.00% / 0.00%)] [336,982 / 5 (100.00%)]
13.5m/s - 14.4m/s 13.5m/s - 14.4m/s = 2
[2 (0.00% / 0.00%)] [336,984 / 3 (100.00%)]
14.5m/s - 15.4m/s 14.5m/s - 15.4m/s = 1
[1 (0.00% / 0.00%)] [336,985 / 1 (100.00%)]

Missing observations (1,237 / 0.37%)

Temperature

-10.5C - -9.6C -10.5C - -9.6C = 1
[1 (0.00% / 0.00%)] [1 / 336,881 (0.00%)]
-9.5C - -8.6C -9.5C - -8.6C = 11
[11 (0.00% / 0.00%)] [12 / 336,880 (0.00%)]
-8.5C - -7.6C -8.5C - -7.6C = 88
[88 (0.03% / 0.03%)] [100 / 336,869 (0.03%)]
-7.5C - -6.6C -7.5C - -6.6C = 236
[236 (0.07% / 0.07%)] [336 / 336,781 (0.10%)]
-6.5C - -5.6C -6.5C - -5.6C = 535
[535 (0.16% / 0.16%)] [871 / 336,545 (0.26%)]
-5.5C - -4.6C -5.5C - -4.6C = 981
[981 (0.29% / 0.29%)] [1,852 / 336,010 (0.55%)]
-4.5C - -3.6C -4.5C - -3.6C = 1,623
[1,623 (0.48% / 0.48%)] [3,475 / 335,029 (1.03%)]
-3.5C - -2.6C -3.5C - -2.6C = 2,618
[2,618 (0.77% / 0.78%)] [6,093 / 333,406 (1.81%)]
-2.5C - -1.6C -2.5C - -1.6C = 4,013
[4,013 (1.19% / 1.19%)] [10,106 / 330,788 (3.00%)]
-1.5C - -0.6C -1.5C - -0.6C = 5,455
[5,455 (1.61% / 1.62%)] [15,561 / 326,775 (4.62%)]
-0.5C - 0.4C -0.5C - 0.4C = 12,297
[12,297 (3.64% / 3.65%)] [27,858 / 321,320 (8.27%)]
0.5C - 1.4C 0.5C - 1.4C = 7,282
[7,282 (2.15% / 2.16%)] [35,140 / 309,023 (10.43%)]
1.5C - 2.4C 1.5C - 2.4C = 8,100
[8,100 (2.39% / 2.40%)] [43,240 / 301,741 (12.84%)]
2.5C - 3.4C 2.5C - 3.4C = 8,885
[8,885 (2.63% / 2.64%)] [52,125 / 293,641 (15.47%)]
3.5C - 4.4C 3.5C - 4.4C = 9,922
[9,922 (2.93% / 2.95%)] [62,047 / 284,756 (18.42%)]
4.5C - 5.4C 4.5C - 5.4C = 10,590
[10,590 (3.13% / 3.14%)] [72,637 / 274,834 (21.56%)]
5.5C - 6.4C 5.5C - 6.4C = 11,179
[11,179 (3.31% / 3.32%)] [83,816 / 264,244 (24.88%)]
6.5C - 7.4C 6.5C - 7.4C = 11,749
[11,749 (3.47% / 3.49%)] [95,565 / 253,065 (28.37%)]
7.5C - 8.4C 7.5C - 8.4C = 11,523
[11,523 (3.41% / 3.42%)] [107,088 / 241,316 (31.79%)]
8.5C - 9.4C 8.5C - 9.4C = 11,464
[11,464 (3.39% / 3.40%)] [118,552 / 229,793 (35.19%)]
9.5C - 10.4C 9.5C - 10.4C = 10,977
[10,977 (3.25% / 3.26%)] [129,529 / 218,329 (38.45%)]
10.5C - 11.4C 10.5C - 11.4C = 10,642
[10,642 (3.15% / 3.16%)] [140,171 / 207,352 (41.61%)]
11.5C - 12.4C 11.5C - 12.4C = 10,658
[10,658 (3.15% / 3.16%)] [150,829 / 196,710 (44.77%)]
12.5C - 13.4C 12.5C - 13.4C = 10,851
[10,851 (3.21% / 3.22%)] [161,680 / 186,052 (47.99%)]
13.5C - 14.4C 13.5C - 14.4C = 11,372
[11,372 (3.36% / 3.38%)] [173,052 / 175,201 (51.37%)]
14.5C - 15.4C 14.5C - 15.4C = 11,815
[11,815 (3.49% / 3.51%)] [184,867 / 163,829 (54.88%)]
15.5C - 16.4C 15.5C - 16.4C = 12,633
[12,633 (3.74% / 3.75%)] [197,500 / 152,014 (58.63%)]
16.5C - 17.4C 16.5C - 17.4C = 13,643
[13,643 (4.03% / 4.05%)] [211,143 / 139,381 (62.68%)]
17.5C - 18.4C 17.5C - 18.4C = 14,040
[14,040 (4.15% / 4.17%)] [225,183 / 125,738 (66.84%)]
18.5C - 19.4C 18.5C - 19.4C = 13,913
[13,913 (4.11% / 4.13%)] [239,096 / 111,698 (70.97%)]
19.5C - 20.4C 19.5C - 20.4C = 14,059
[14,059 (4.16% / 4.17%)] [253,155 / 97,785 (75.15%)]
20.5C - 21.4C 20.5C - 21.4C = 13,382
[13,382 (3.96% / 3.97%)] [266,537 / 83,726 (79.12%)]
21.5C - 22.4C 21.5C - 22.4C = 12,581
[12,581 (3.72% / 3.73%)] [279,118 / 70,344 (82.85%)]
22.5C - 23.4C 22.5C - 23.4C = 12,095
[12,095 (3.58% / 3.59%)] [291,213 / 57,763 (86.44%)]
23.5C - 24.4C 23.5C - 24.4C = 10,545
[10,545 (3.12% / 3.13%)] [301,758 / 45,668 (89.57%)]
24.5C - 25.4C 24.5C - 25.4C = 8,768
[8,768 (2.59% / 2.60%)] [310,526 / 35,123 (92.18%)]
25.5C - 26.4C 25.5C - 26.4C = 6,691
[6,691 (1.98% / 1.99%)] [317,217 / 26,355 (94.16%)]
26.5C - 27.4C 26.5C - 27.4C = 5,136
[5,136 (1.52% / 1.52%)] [322,353 / 19,664 (95.69%)]
27.5C - 28.4C 27.5C - 28.4C = 3,736
[3,736 (1.10% / 1.11%)] [326,089 / 14,528 (96.80%)]
28.5C - 29.4C 28.5C - 29.4C = 3,045
[3,045 (0.90% / 0.90%)] [329,134 / 10,792 (97.70%)]
29.5C - 30.4C 29.5C - 30.4C = 2,474
[2,474 (0.73% / 0.73%)] [331,608 / 7,747 (98.43%)]
30.5C - 31.4C 30.5C - 31.4C = 2,017
[2,017 (0.60% / 0.60%)] [333,625 / 5,273 (99.03%)]
31.5C - 32.4C 31.5C - 32.4C = 1,435
[1,435 (0.42% / 0.43%)] [335,060 / 3,256 (99.46%)]
32.5C - 33.4C 32.5C - 33.4C = 979
[979 (0.29% / 0.29%)] [336,039 / 1,821 (99.75%)]
33.5C - 34.4C 33.5C - 34.4C = 511
[511 (0.15% / 0.15%)] [336,550 / 842 (99.90%)]
34.5C - 35.4C 34.5C - 35.4C = 255
[255 (0.08% / 0.08%)] [336,805 / 331 (99.98%)]
35.5C - 36.4C 35.5C - 36.4C = 65
[65 (0.02% / 0.02%)] [336,870 / 76 (100.00%)]
36.5C - 37.4C 36.5C - 37.4C = 11
[11 (0.00% / 0.00%)] [336,881 / 11 (100.00%)]

Missing observations (1,341 / 0.40%)

Sunshine Duration

0.0h 0.0h = 238,525
[238,525 (70.52% / 70.75%)] [238,525 / 337,142 (70.75%)]
0.1h 0.1h = 7,257
[7,257 (2.15% / 2.15%)] [245,782 / 98,617 (72.90%)]
0.2h 0.2h = 5,328
[5,328 (1.58% / 1.58%)] [251,110 / 91,360 (74.48%)]
0.3h 0.3h = 4,660
[4,660 (1.38% / 1.38%)] [255,770 / 86,032 (75.86%)]
0.4h 0.4h = 4,332
[4,332 (1.28% / 1.28%)] [260,102 / 81,372 (77.15%)]
0.5h 0.5h = 4,265
[4,265 (1.26% / 1.27%)] [264,367 / 77,040 (78.41%)]
0.6h 0.6h = 4,452
[4,452 (1.32% / 1.32%)] [268,819 / 72,775 (79.73%)]
0.7h 0.7h = 4,908
[4,908 (1.45% / 1.46%)] [273,727 / 68,323 (81.19%)]
0.8h 0.8h = 5,779
[5,779 (1.71% / 1.71%)] [279,506 / 63,415 (82.90%)]
0.9h 0.9h = 7,295
[7,295 (2.16% / 2.16%)] [286,801 / 57,636 (85.07%)]
1.0h 1.0h = 50,341
[50,341 (14.88% / 14.93%)] [337,142 / 50,341 (100.00%)]

Missing observations (1,080 / 0.32%)