Station Number 40311
Prefecture Ibaraki [ Local Portal ]
Location 茨城県鉾田市安房 (HOKOTA SHI, IBARAKI KEN)
Months of Observations 475
Number of Observations 346,238
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 -- 2017/07/99 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 = 321,715
[321,715 (92.92% / 93.19%)] [321,715 / 345,213 (93.19)]
0.5mm - 1.4mm 0.5mm - 1.4mm = 12,537
[12,537 (3.62% / 3.63%)] [334,252 / 23,498 (96.82)]
1.5mm - 2.4mm 1.5mm - 2.4mm = 4,718
[4,718 (1.36% / 1.37%)] [338,970 / 10,961 (98.19)]
2.5mm - 3.4mm 2.5mm - 3.4mm = 2,302
[2,302 (0.66% / 0.67%)] [341,272 / 6,243 (98.86)]
3.5mm - 4.4mm 3.5mm - 4.4mm = 1,215
[1,215 (0.35% / 0.35%)] [342,487 / 3,941 (99.21)]
4.5mm - 5.4mm 4.5mm - 5.4mm = 779
[779 (0.22% / 0.23%)] [343,266 / 2,726 (99.44)]
5.5mm - 6.4mm 5.5mm - 6.4mm = 492
[492 (0.14% / 0.14%)] [343,758 / 1,947 (99.58)]
6.5mm - 7.4mm 6.5mm - 7.4mm = 323
[323 (0.09% / 0.09%)] [344,081 / 1,455 (99.67)]
7.5mm - 8.4mm 7.5mm - 8.4mm = 237
[237 (0.07% / 0.07%)] [344,318 / 1,132 (99.74)]
8.5mm - 9.4mm 8.5mm - 9.4mm = 174
[174 (0.05% / 0.05%)] [344,492 / 895 (99.79)]
9.5mm - 10.4mm 9.5mm - 10.4mm = 150
[150 (0.04% / 0.04%)] [344,642 / 721 (99.83)]
10.5mm - 11.4mm 10.5mm - 11.4mm = 125
[125 (0.04% / 0.04%)] [344,767 / 571 (99.87)]
11.5mm - 12.4mm 11.5mm - 12.4mm = 84
[84 (0.02% / 0.02%)] [344,851 / 446 (99.90)]
12.5mm - 13.4mm 12.5mm - 13.4mm = 67
[67 (0.02% / 0.02%)] [344,918 / 362 (99.91)]
13.5mm - 14.4mm 13.5mm - 14.4mm = 38
[38 (0.01% / 0.01%)] [344,956 / 295 (99.93)]
14.5mm - 15.4mm 14.5mm - 15.4mm = 37
[37 (0.01% / 0.01%)] [344,993 / 257 (99.94)]
15.5mm - 16.4mm 15.5mm - 16.4mm = 34
[34 (0.01% / 0.01%)] [345,027 / 220 (99.95)]
16.5mm - 17.4mm 16.5mm - 17.4mm = 27
[27 (0.01% / 0.01%)] [345,054 / 186 (99.95)]
17.5mm - 18.4mm 17.5mm - 18.4mm = 21
[21 (0.01% / 0.01%)] [345,075 / 159 (99.96)]
18.5mm - 19.4mm 18.5mm - 19.4mm = 22
[22 (0.01% / 0.01%)] [345,097 / 138 (99.97)]
19.5mm - 20.4mm 19.5mm - 20.4mm = 22
[22 (0.01% / 0.01%)] [345,119 / 116 (99.97)]
20.5mm - 21.4mm 20.5mm - 21.4mm = 10
[10 (0.00% / 0.00%)] [345,129 / 94 (99.98)]
21.5mm - 22.4mm 21.5mm - 22.4mm = 11
[11 (0.00% / 0.00%)] [345,140 / 84 (99.98)]
22.5mm - 23.4mm 22.5mm - 23.4mm = 5
[5 (0.00% / 0.00%)] [345,145 / 73 (99.98)]
23.5mm - 24.4mm 23.5mm - 24.4mm = 4
[4 (0.00% / 0.00%)] [345,149 / 68 (99.98)]
24.5mm - 25.4mm 24.5mm - 25.4mm = 5
[5 (0.00% / 0.00%)] [345,154 / 64 (99.98)]
25.5mm - 26.4mm 25.5mm - 26.4mm = 7
[7 (0.00% / 0.00%)] [345,161 / 59 (99.98)]
26.5mm - 27.4mm 26.5mm - 27.4mm = 7
[7 (0.00% / 0.00%)] [345,168 / 52 (99.99)]
27.5mm - 28.4mm 27.5mm - 28.4mm = 3
[3 (0.00% / 0.00%)] [345,171 / 45 (99.99)]
28.5mm - 29.4mm 28.5mm - 29.4mm = 2
[2 (0.00% / 0.00%)] [345,173 / 42 (99.99)]
29.5mm - 30.4mm 29.5mm - 30.4mm = 5
[5 (0.00% / 0.00%)] [345,178 / 40 (99.99)]
31.5mm - 32.4mm 31.5mm - 32.4mm = 3
[3 (0.00% / 0.00%)] [345,181 / 35 (99.99)]
32.5mm - 33.4mm 32.5mm - 33.4mm = 3
[3 (0.00% / 0.00%)] [345,184 / 32 (99.99)]
33.5mm - 34.4mm 33.5mm - 34.4mm = 1
[1 (0.00% / 0.00%)] [345,185 / 29 (99.99)]
34.5mm - 35.4mm 34.5mm - 35.4mm = 1
[1 (0.00% / 0.00%)] [345,186 / 28 (99.99)]
35.5mm - 36.4mm 35.5mm - 36.4mm = 1
[1 (0.00% / 0.00%)] [345,187 / 27 (99.99)]
36.5mm - 37.4mm 36.5mm - 37.4mm = 2
[2 (0.00% / 0.00%)] [345,189 / 26 (99.99)]
37.5mm - 38.4mm 37.5mm - 38.4mm = 2
[2 (0.00% / 0.00%)] [345,191 / 24 (99.99)]
38.5mm - 39.4mm 38.5mm - 39.4mm = 1
[1 (0.00% / 0.00%)] [345,192 / 22 (99.99)]
39.5mm - 40.4mm 39.5mm - 40.4mm = 3
[3 (0.00% / 0.00%)] [345,195 / 21 (99.99)]
40.5mm - 41.4mm 40.5mm - 41.4mm = 3
[3 (0.00% / 0.00%)] [345,198 / 18 (100.00)]
41.5mm - 42.4mm 41.5mm - 42.4mm = 4
[4 (0.00% / 0.00%)] [345,202 / 15 (100.00)]
42.5mm - 43.4mm 42.5mm - 43.4mm = 2
[2 (0.00% / 0.00%)] [345,204 / 11 (100.00)]
43.5mm - 44.4mm 43.5mm - 44.4mm = 2
[2 (0.00% / 0.00%)] [345,206 / 9 (100.00)]
45.5mm - 46.4mm 45.5mm - 46.4mm = 1
[1 (0.00% / 0.00%)] [345,207 / 7 (100.00)]
47.5mm - 48.4mm 47.5mm - 48.4mm = 3
[3 (0.00% / 0.00%)] [345,210 / 6 (100.00)]
49.5mm - 50.4mm 49.5mm - 50.4mm = 1
[1 (0.00% / 0.00%)] [345,211 / 3 (100.00)]
52.5mm - 53.4mm 52.5mm - 53.4mm = 2
[2 (0.00% / 0.00%)] [345,213 / 2 (100.00)]

Missing observations (1,025 / 0.30%)

Wind Direction

Calm Calm = 61,214
[61,214 (17.68% / 17.75%)]
NNE NNE = 18,055
[18,055 (5.21% / 5.23%)]
NE NE = 46,184
[46,184 (13.34% / 13.39%)]
ENE ENE = 26,058
[26,058 (7.53% / 7.55%)]
E E = 10,317
[10,317 (2.98% / 2.99%)]
ESE ESE = 15,065
[15,065 (4.35% / 4.37%)]
SE SE = 11,574
[11,574 (3.34% / 3.36%)]
SSE SSE = 8,667
[8,667 (2.50% / 2.51%)]
S S = 18,788
[18,788 (5.43% / 5.45%)]
SSW SSW = 21,114
[21,114 (6.10% / 6.12%)]
SW SW = 9,521
[9,521 (2.75% / 2.76%)]
WSW WSW = 4,931
[4,931 (1.42% / 1.43%)]
W W = 5,160
[5,160 (1.49% / 1.50%)]
WNW WNW = 7,178
[7,178 (2.07% / 2.08%)]
NW NW = 16,283
[16,283 (4.70% / 4.72%)]
NNW NNW = 40,726
[40,726 (11.76% / 11.81%)]
N N = 24,099
[24,099 (6.96% / 6.99%)]

Missing observations (1,304 / 0.38%)

Wind Speed

0.0m/s - 0.4m/s 0.0m/s - 0.4m/s = 64,961
[64,961 (18.76% / 18.83%)] [64,961 / 344,999 (18.83)]
0.5m/s - 1.4m/s 0.5m/s - 1.4m/s = 104,030
[104,030 (30.05% / 30.15%)] [168,991 / 280,038 (48.98)]
1.5m/s - 2.4m/s 1.5m/s - 2.4m/s = 89,106
[89,106 (25.74% / 25.83%)] [258,097 / 176,008 (74.81)]
2.5m/s - 3.4m/s 2.5m/s - 3.4m/s = 53,305
[53,305 (15.40% / 15.45%)] [311,402 / 86,902 (90.26)]
3.5m/s - 4.4m/s 3.5m/s - 4.4m/s = 22,580
[22,580 (6.52% / 6.54%)] [333,982 / 33,597 (96.81)]
4.5m/s - 5.4m/s 4.5m/s - 5.4m/s = 7,387
[7,387 (2.13% / 2.14%)] [341,369 / 11,017 (98.95)]
5.5m/s - 6.4m/s 5.5m/s - 6.4m/s = 2,399
[2,399 (0.69% / 0.70%)] [343,768 / 3,630 (99.64)]
6.5m/s - 7.4m/s 6.5m/s - 7.4m/s = 769
[769 (0.22% / 0.22%)] [344,537 / 1,231 (99.87)]
7.5m/s - 8.4m/s 7.5m/s - 8.4m/s = 294
[294 (0.08% / 0.09%)] [344,831 / 462 (99.95)]
8.5m/s - 9.4m/s 8.5m/s - 9.4m/s = 118
[118 (0.03% / 0.03%)] [344,949 / 168 (99.99)]
9.5m/s - 10.4m/s 9.5m/s - 10.4m/s = 35
[35 (0.01% / 0.01%)] [344,984 / 50 (100.00)]
10.5m/s - 11.4m/s 10.5m/s - 11.4m/s = 9
[9 (0.00% / 0.00%)] [344,993 / 15 (100.00)]
11.5m/s - 12.4m/s 11.5m/s - 12.4m/s = 1
[1 (0.00% / 0.00%)] [344,994 / 6 (100.00)]
12.5m/s - 13.4m/s 12.5m/s - 13.4m/s = 2
[2 (0.00% / 0.00%)] [344,996 / 5 (100.00)]
13.5m/s - 14.4m/s 13.5m/s - 14.4m/s = 2
[2 (0.00% / 0.00%)] [344,998 / 3 (100.00)]
14.5m/s - 15.4m/s 14.5m/s - 15.4m/s = 1
[1 (0.00% / 0.00%)] [344,999 / 1 (100.00)]

Missing observations (1,239 / 0.36%)

Temperature

-10.5C - -9.6C -10.5C - -9.6C = 1
[1 (0.00% / 0.00%)] [1 / 344,895 (0.00)]
-9.5C - -8.6C -9.5C - -8.6C = 11
[11 (0.00% / 0.00%)] [12 / 344,894 (0.00)]
-8.5C - -7.6C -8.5C - -7.6C = 88
[88 (0.03% / 0.03%)] [100 / 344,883 (0.03)]
-7.5C - -6.6C -7.5C - -6.6C = 237
[237 (0.07% / 0.07%)] [337 / 344,795 (0.10)]
-6.5C - -5.6C -6.5C - -5.6C = 538
[538 (0.16% / 0.16%)] [875 / 344,558 (0.25)]
-5.5C - -4.6C -5.5C - -4.6C = 992
[992 (0.29% / 0.29%)] [1,867 / 344,020 (0.54)]
-4.5C - -3.6C -4.5C - -3.6C = 1,653
[1,653 (0.48% / 0.48%)] [3,520 / 343,028 (1.02)]
-3.5C - -2.6C -3.5C - -2.6C = 2,662
[2,662 (0.77% / 0.77%)] [6,182 / 341,375 (1.79)]
-2.5C - -1.6C -2.5C - -1.6C = 4,117
[4,117 (1.19% / 1.19%)] [10,299 / 338,713 (2.99)]
-1.5C - -0.6C -1.5C - -0.6C = 5,608
[5,608 (1.62% / 1.63%)] [15,907 / 334,596 (4.61)]
-0.5C - 0.4C -0.5C - 0.4C = 12,592
[12,592 (3.64% / 3.65%)] [28,499 / 328,988 (8.26)]
0.5C - 1.4C 0.5C - 1.4C = 7,498
[7,498 (2.17% / 2.17%)] [35,997 / 316,396 (10.44)]
1.5C - 2.4C 1.5C - 2.4C = 8,332
[8,332 (2.41% / 2.42%)] [44,329 / 308,898 (12.85)]
2.5C - 3.4C 2.5C - 3.4C = 9,121
[9,121 (2.63% / 2.64%)] [53,450 / 300,566 (15.50)]
3.5C - 4.4C 3.5C - 4.4C = 10,139
[10,139 (2.93% / 2.94%)] [63,589 / 291,445 (18.44)]
4.5C - 5.4C 4.5C - 5.4C = 10,834
[10,834 (3.13% / 3.14%)] [74,423 / 281,306 (21.58)]
5.5C - 6.4C 5.5C - 6.4C = 11,441
[11,441 (3.30% / 3.32%)] [85,864 / 270,472 (24.90)]
6.5C - 7.4C 6.5C - 7.4C = 12,048
[12,048 (3.48% / 3.49%)] [97,912 / 259,031 (28.39)]
7.5C - 8.4C 7.5C - 8.4C = 11,828
[11,828 (3.42% / 3.43%)] [109,740 / 246,983 (31.82)]
8.5C - 9.4C 8.5C - 9.4C = 11,791
[11,791 (3.41% / 3.42%)] [121,531 / 235,155 (35.24)]
9.5C - 10.4C 9.5C - 10.4C = 11,287
[11,287 (3.26% / 3.27%)] [132,818 / 223,364 (38.51)]
10.5C - 11.4C 10.5C - 11.4C = 10,945
[10,945 (3.16% / 3.17%)] [143,763 / 212,077 (41.68)]
11.5C - 12.4C 11.5C - 12.4C = 10,922
[10,922 (3.15% / 3.17%)] [154,685 / 201,132 (44.85)]
12.5C - 13.4C 12.5C - 13.4C = 11,052
[11,052 (3.19% / 3.20%)] [165,737 / 190,210 (48.05)]
13.5C - 14.4C 13.5C - 14.4C = 11,590
[11,590 (3.35% / 3.36%)] [177,327 / 179,158 (51.41)]
14.5C - 15.4C 14.5C - 15.4C = 12,077
[12,077 (3.49% / 3.50%)] [189,404 / 167,568 (54.92)]
15.5C - 16.4C 15.5C - 16.4C = 12,959
[12,959 (3.74% / 3.76%)] [202,363 / 155,491 (58.67)]
16.5C - 17.4C 16.5C - 17.4C = 13,896
[13,896 (4.01% / 4.03%)] [216,259 / 142,532 (62.70)]
17.5C - 18.4C 17.5C - 18.4C = 14,347
[14,347 (4.14% / 4.16%)] [230,606 / 128,636 (66.86)]
18.5C - 19.4C 18.5C - 19.4C = 14,191
[14,191 (4.10% / 4.11%)] [244,797 / 114,289 (70.98)]
19.5C - 20.4C 19.5C - 20.4C = 14,359
[14,359 (4.15% / 4.16%)] [259,156 / 100,098 (75.14)]
20.5C - 21.4C 20.5C - 21.4C = 13,718
[13,718 (3.96% / 3.98%)] [272,874 / 85,739 (79.12)]
21.5C - 22.4C 21.5C - 22.4C = 12,950
[12,950 (3.74% / 3.75%)] [285,824 / 72,021 (82.87)]
22.5C - 23.4C 22.5C - 23.4C = 12,385
[12,385 (3.58% / 3.59%)] [298,209 / 59,071 (86.46)]
23.5C - 24.4C 23.5C - 24.4C = 10,778
[10,778 (3.11% / 3.13%)] [308,987 / 46,686 (89.59)]
24.5C - 25.4C 24.5C - 25.4C = 8,952
[8,952 (2.59% / 2.60%)] [317,939 / 35,908 (92.18)]
25.5C - 26.4C 25.5C - 26.4C = 6,844
[6,844 (1.98% / 1.98%)] [324,783 / 26,956 (94.17)]
26.5C - 27.4C 26.5C - 27.4C = 5,256
[5,256 (1.52% / 1.52%)] [330,039 / 20,112 (95.69)]
27.5C - 28.4C 27.5C - 28.4C = 3,855
[3,855 (1.11% / 1.12%)] [333,894 / 14,856 (96.81)]
28.5C - 29.4C 28.5C - 29.4C = 3,097
[3,097 (0.89% / 0.90%)] [336,991 / 11,001 (97.71)]
29.5C - 30.4C 29.5C - 30.4C = 2,538
[2,538 (0.73% / 0.74%)] [339,529 / 7,904 (98.44)]
30.5C - 31.4C 30.5C - 31.4C = 2,062
[2,062 (0.60% / 0.60%)] [341,591 / 5,366 (99.04)]
31.5C - 32.4C 31.5C - 32.4C = 1,463
[1,463 (0.42% / 0.42%)] [343,054 / 3,304 (99.47)]
32.5C - 33.4C 32.5C - 33.4C = 996
[996 (0.29% / 0.29%)] [344,050 / 1,841 (99.75)]
33.5C - 34.4C 33.5C - 34.4C = 514
[514 (0.15% / 0.15%)] [344,564 / 845 (99.90)]
34.5C - 35.4C 34.5C - 35.4C = 255
[255 (0.07% / 0.07%)] [344,819 / 331 (99.98)]
35.5C - 36.4C 35.5C - 36.4C = 65
[65 (0.02% / 0.02%)] [344,884 / 76 (100.00)]
36.5C - 37.4C 36.5C - 37.4C = 11
[11 (0.00% / 0.00%)] [344,895 / 11 (100.00)]

Missing observations (1,343 / 0.39%)

Sunshine Duration

0.0h 0.0h = 243,897
[243,897 (70.44% / 70.66%)] [243,897 / 345,153 (70.66)]
0.1h 0.1h = 7,496
[7,496 (2.16% / 2.17%)] [251,393 / 101,256 (72.84)]
0.2h 0.2h = 5,482
[5,482 (1.58% / 1.59%)] [256,875 / 93,760 (74.42)]
0.3h 0.3h = 4,767
[4,767 (1.38% / 1.38%)] [261,642 / 88,278 (75.80)]
0.4h 0.4h = 4,457
[4,457 (1.29% / 1.29%)] [266,099 / 83,511 (77.10)]
0.5h 0.5h = 4,393
[4,393 (1.27% / 1.27%)] [270,492 / 79,054 (78.37)]
0.6h 0.6h = 4,580
[4,580 (1.32% / 1.33%)] [275,072 / 74,661 (79.70)]
0.7h 0.7h = 5,019
[5,019 (1.45% / 1.45%)] [280,091 / 70,081 (81.15)]
0.8h 0.8h = 5,913
[5,913 (1.71% / 1.71%)] [286,004 / 65,062 (82.86)]
0.9h 0.9h = 7,507
[7,507 (2.17% / 2.17%)] [293,511 / 59,149 (85.04)]
1.0h 1.0h = 51,642
[51,642 (14.92% / 14.96%)] [345,153 / 51,642 (100.00)]

Missing observations (1,085 / 0.31%)