観測所番号 40221
都道府県 茨城県 [ 地域ポータル ]
所在地 茨城県古河市北町 (茨城県古河市)
観測月数 528
観測回数 385,704
観測期間
期間 名前 緯度 経度 高度 風速計高さ
1974年11月01日 〜 1978年01月10日 古河 (コガ) 36.203N 139.715E 20m 0.0m
1978年01月11日 〜 1987年10月27日 古河 (コガ) 36.203N 139.715E 20m 8.5m
1987年10月28日 〜 1989年10月23日 古河 (コガ) 36.203N 139.715E 20m 8.5m
1989年10月24日 〜 2008年01月15日 古河 (コガ) 36.202N 139.717E 20m 8.5m
2008年01月16日 〜 2010年01月04日 古河 (コガ) 36.202N 139.717E 20m 8.5m
2010年01月05日 〜 2019年12月99日 古河 (コガ) 36.202N 139.717E 20m 10.0m
リアルタイムデータ アメラス(アメダス・ランキング・サービス)
過去の大雨データ アメダス集中豪雨
気象災害報告
台風接近履歴
近隣観測所
番号 名前 距離 方位
43126 久喜(埼玉県) 14.74km 210度
41376 小山(栃木県) 18.19km 33度
42366 館林(群馬県) 18.82km 283度
41371 栃木(栃木県) 19.02km 356度
40281 下妻(茨城県) 20.85km 100度
41361 佐野(栃木県) 22.22km 323度
43121 鴻巣(埼玉県) 23.22km 229度
40326 坂東(茨城県) 24.38km 139度
41356 足利(栃木県) 24.58km 296度
40282 常総(茨城県) 25.64km 112度
40231 下館(茨城県) 25.93km 69度
41311 葛生(栃木県) 27.95km 335度

全期間統計

降水量

0.0mm - 0.4mm 0.0mm - 0.4mm = 359,779
[359,779 (93.28% / 93.89%)] [359,779 / 383,204 (93.89)]
0.5mm - 1.4mm 0.5mm - 1.4mm = 13,105
[13,105 (3.40% / 3.42%)] [372,884 / 23,425 (97.31)]
1.5mm - 2.4mm 1.5mm - 2.4mm = 4,637
[4,637 (1.20% / 1.21%)] [377,521 / 10,320 (98.52)]
2.5mm - 3.4mm 2.5mm - 3.4mm = 2,164
[2,164 (0.56% / 0.56%)] [379,685 / 5,683 (99.08)]
3.5mm - 4.4mm 3.5mm - 4.4mm = 1,130
[1,130 (0.29% / 0.29%)] [380,815 / 3,519 (99.38)]
4.5mm - 5.4mm 4.5mm - 5.4mm = 659
[659 (0.17% / 0.17%)] [381,474 / 2,389 (99.55)]
5.5mm - 6.4mm 5.5mm - 6.4mm = 413
[413 (0.11% / 0.11%)] [381,887 / 1,730 (99.66)]
6.5mm - 7.4mm 6.5mm - 7.4mm = 301
[301 (0.08% / 0.08%)] [382,188 / 1,317 (99.73)]
7.5mm - 8.4mm 7.5mm - 8.4mm = 201
[201 (0.05% / 0.05%)] [382,389 / 1,016 (99.79)]
8.5mm - 9.4mm 8.5mm - 9.4mm = 159
[159 (0.04% / 0.04%)] [382,548 / 815 (99.83)]
9.5mm - 10.4mm 9.5mm - 10.4mm = 112
[112 (0.03% / 0.03%)] [382,660 / 656 (99.86)]
10.5mm - 11.4mm 10.5mm - 11.4mm = 91
[91 (0.02% / 0.02%)] [382,751 / 544 (99.88)]
11.5mm - 12.4mm 11.5mm - 12.4mm = 69
[69 (0.02% / 0.02%)] [382,820 / 453 (99.90)]
12.5mm - 13.4mm 12.5mm - 13.4mm = 69
[69 (0.02% / 0.02%)] [382,889 / 384 (99.92)]
13.5mm - 14.4mm 13.5mm - 14.4mm = 44
[44 (0.01% / 0.01%)] [382,933 / 315 (99.93)]
14.5mm - 15.4mm 14.5mm - 15.4mm = 38
[38 (0.01% / 0.01%)] [382,971 / 271 (99.94)]
15.5mm - 16.4mm 15.5mm - 16.4mm = 32
[32 (0.01% / 0.01%)] [383,003 / 233 (99.95)]
16.5mm - 17.4mm 16.5mm - 17.4mm = 15
[15 (0.00% / 0.00%)] [383,018 / 201 (99.95)]
17.5mm - 18.4mm 17.5mm - 18.4mm = 27
[27 (0.01% / 0.01%)] [383,045 / 186 (99.96)]
18.5mm - 19.4mm 18.5mm - 19.4mm = 26
[26 (0.01% / 0.01%)] [383,071 / 159 (99.97)]
19.5mm - 20.4mm 19.5mm - 20.4mm = 13
[13 (0.00% / 0.00%)] [383,084 / 133 (99.97)]
20.5mm - 21.4mm 20.5mm - 21.4mm = 11
[11 (0.00% / 0.00%)] [383,095 / 120 (99.97)]
21.5mm - 22.4mm 21.5mm - 22.4mm = 15
[15 (0.00% / 0.00%)] [383,110 / 109 (99.98)]
22.5mm - 23.4mm 22.5mm - 23.4mm = 10
[10 (0.00% / 0.00%)] [383,120 / 94 (99.98)]
23.5mm - 24.4mm 23.5mm - 24.4mm = 7
[7 (0.00% / 0.00%)] [383,127 / 84 (99.98)]
24.5mm - 25.4mm 24.5mm - 25.4mm = 9
[9 (0.00% / 0.00%)] [383,136 / 77 (99.98)]
25.5mm - 26.4mm 25.5mm - 26.4mm = 9
[9 (0.00% / 0.00%)] [383,145 / 68 (99.98)]
26.5mm - 27.4mm 26.5mm - 27.4mm = 2
[2 (0.00% / 0.00%)] [383,147 / 59 (99.99)]
27.5mm - 28.4mm 27.5mm - 28.4mm = 4
[4 (0.00% / 0.00%)] [383,151 / 57 (99.99)]
28.5mm - 29.4mm 28.5mm - 29.4mm = 6
[6 (0.00% / 0.00%)] [383,157 / 53 (99.99)]
29.5mm - 30.4mm 29.5mm - 30.4mm = 5
[5 (0.00% / 0.00%)] [383,162 / 47 (99.99)]
30.5mm - 31.4mm 30.5mm - 31.4mm = 3
[3 (0.00% / 0.00%)] [383,165 / 42 (99.99)]
31.5mm - 32.4mm 31.5mm - 32.4mm = 6
[6 (0.00% / 0.00%)] [383,171 / 39 (99.99)]
32.5mm - 33.4mm 32.5mm - 33.4mm = 3
[3 (0.00% / 0.00%)] [383,174 / 33 (99.99)]
33.5mm - 34.4mm 33.5mm - 34.4mm = 4
[4 (0.00% / 0.00%)] [383,178 / 30 (99.99)]
34.5mm - 35.4mm 34.5mm - 35.4mm = 4
[4 (0.00% / 0.00%)] [383,182 / 26 (99.99)]
35.5mm - 36.4mm 35.5mm - 36.4mm = 5
[5 (0.00% / 0.00%)] [383,187 / 22 (100.00)]
36.5mm - 37.4mm 36.5mm - 37.4mm = 2
[2 (0.00% / 0.00%)] [383,189 / 17 (100.00)]
37.5mm - 38.4mm 37.5mm - 38.4mm = 1
[1 (0.00% / 0.00%)] [383,190 / 15 (100.00)]
38.5mm - 39.4mm 38.5mm - 39.4mm = 1
[1 (0.00% / 0.00%)] [383,191 / 14 (100.00)]
39.5mm - 40.4mm 39.5mm - 40.4mm = 1
[1 (0.00% / 0.00%)] [383,192 / 13 (100.00)]
40.5mm - 41.4mm 40.5mm - 41.4mm = 1
[1 (0.00% / 0.00%)] [383,193 / 12 (100.00)]
41.5mm - 42.4mm 41.5mm - 42.4mm = 1
[1 (0.00% / 0.00%)] [383,194 / 11 (100.00)]
43.5mm - 44.4mm 43.5mm - 44.4mm = 3
[3 (0.00% / 0.00%)] [383,197 / 10 (100.00)]
44.5mm - 45.4mm 44.5mm - 45.4mm = 3
[3 (0.00% / 0.00%)] [383,200 / 7 (100.00)]
46.5mm - 47.4mm 46.5mm - 47.4mm = 1
[1 (0.00% / 0.00%)] [383,201 / 4 (100.00)]
47.5mm - 48.4mm 47.5mm - 48.4mm = 1
[1 (0.00% / 0.00%)] [383,202 / 3 (100.00)]
49.5mm - 50.4mm 49.5mm - 50.4mm = 1
[1 (0.00% / 0.00%)] [383,203 / 2 (100.00)]
68.5mm - 69.4mm 68.5mm - 69.4mm = 1
[1 (0.00% / 0.00%)] [383,204 / 1 (100.00)]

欠測回数 (2,500 / 0.65%)

風向

静穏 静穏 = 60,067
[60,067 (15.57% / 16.34%)]
北北東 北北東 = 43,527
[43,527 (11.29% / 11.84%)]
北東 北東 = 28,458
[28,458 (7.38% / 7.74%)]
東北東 東北東 = 15,388
[15,388 (3.99% / 4.19%)]
東 = 11,216
[11,216 (2.91% / 3.05%)]
東南東 東南東 = 25,970
[25,970 (6.73% / 7.07%)]
南東 南東 = 23,409
[23,409 (6.07% / 6.37%)]
南南東 南南東 = 18,110
[18,110 (4.70% / 4.93%)]
南 = 15,479
[15,479 (4.01% / 4.21%)]
南南西 南南西 = 8,273
[8,273 (2.14% / 2.25%)]
南西 南西 = 6,743
[6,743 (1.75% / 1.83%)]
西南西 西南西 = 9,479
[9,479 (2.46% / 2.58%)]
西 西 = 17,450
[17,450 (4.52% / 4.75%)]
西北西 西北西 = 33,010
[33,010 (8.56% / 8.98%)]
北西 北西 = 17,589
[17,589 (4.56% / 4.79%)]
北北西 北北西 = 11,535
[11,535 (2.99% / 3.14%)]
北 = 21,822
[21,822 (5.66% / 5.94%)]

欠測回数 (18,179 / 4.71%)

風速

0.0m/s - 0.4m/s 0.0m/s - 0.4m/s = 63,745
[63,745 (16.53% / 17.34%)] [63,745 / 367,580 (17.34)]
0.5m/s - 1.4m/s 0.5m/s - 1.4m/s = 147,182
[147,182 (38.16% / 40.04%)] [210,927 / 303,835 (57.38)]
1.5m/s - 2.4m/s 1.5m/s - 2.4m/s = 91,291
[91,291 (23.67% / 24.84%)] [302,218 / 156,653 (82.22)]
2.5m/s - 3.4m/s 2.5m/s - 3.4m/s = 37,188
[37,188 (9.64% / 10.12%)] [339,406 / 65,362 (92.34)]
3.5m/s - 4.4m/s 3.5m/s - 4.4m/s = 15,677
[15,677 (4.06% / 4.26%)] [355,083 / 28,174 (96.60)]
4.5m/s - 5.4m/s 4.5m/s - 5.4m/s = 7,072
[7,072 (1.83% / 1.92%)] [362,155 / 12,497 (98.52)]
5.5m/s - 6.4m/s 5.5m/s - 6.4m/s = 3,246
[3,246 (0.84% / 0.88%)] [365,401 / 5,425 (99.41)]
6.5m/s - 7.4m/s 6.5m/s - 7.4m/s = 1,433
[1,433 (0.37% / 0.39%)] [366,834 / 2,179 (99.80)]
7.5m/s - 8.4m/s 7.5m/s - 8.4m/s = 528
[528 (0.14% / 0.14%)] [367,362 / 746 (99.94)]
8.5m/s - 9.4m/s 8.5m/s - 9.4m/s = 153
[153 (0.04% / 0.04%)] [367,515 / 218 (99.98)]
9.5m/s - 10.4m/s 9.5m/s - 10.4m/s = 39
[39 (0.01% / 0.01%)] [367,554 / 65 (99.99)]
10.5m/s - 11.4m/s 10.5m/s - 11.4m/s = 14
[14 (0.00% / 0.00%)] [367,568 / 26 (100.00)]
11.5m/s - 12.4m/s 11.5m/s - 12.4m/s = 11
[11 (0.00% / 0.00%)] [367,579 / 12 (100.00)]
12.5m/s - 13.4m/s 12.5m/s - 13.4m/s = 1
[1 (0.00% / 0.00%)] [367,580 / 1 (100.00)]

欠測回数 (18,124 / 4.70%)

気温

-11.5℃ - -10.6℃ -11.5℃ - -10.6℃ = 1
[1 (0.00% / 0.00%)] [1 / 367,562 (0.00)]
-10.5℃ - -9.6℃ -10.5℃ - -9.6℃ = 2
[2 (0.00% / 0.00%)] [3 / 367,561 (0.00)]
-9.5℃ - -8.6℃ -9.5℃ - -8.6℃ = 1
[1 (0.00% / 0.00%)] [4 / 367,559 (0.00)]
-8.5℃ - -7.6℃ -8.5℃ - -7.6℃ = 1
[1 (0.00% / 0.00%)] [5 / 367,558 (0.00)]
-7.5℃ - -6.6℃ -7.5℃ - -6.6℃ = 13
[13 (0.00% / 0.00%)] [18 / 367,557 (0.00)]
-6.5℃ - -5.6℃ -6.5℃ - -5.6℃ = 54
[54 (0.01% / 0.01%)] [72 / 367,544 (0.02)]
-5.5℃ - -4.6℃ -5.5℃ - -4.6℃ = 169
[169 (0.04% / 0.05%)] [241 / 367,490 (0.07)]
-4.5℃ - -3.6℃ -4.5℃ - -3.6℃ = 516
[516 (0.13% / 0.14%)] [757 / 367,321 (0.21)]
-3.5℃ - -2.6℃ -3.5℃ - -2.6℃ = 1,132
[1,132 (0.29% / 0.31%)] [1,889 / 366,805 (0.51)]
-2.5℃ - -1.6℃ -2.5℃ - -1.6℃ = 2,154
[2,154 (0.56% / 0.59%)] [4,043 / 365,673 (1.10)]
-1.5℃ - -0.6℃ -1.5℃ - -0.6℃ = 3,784
[3,784 (0.98% / 1.03%)] [7,827 / 363,519 (2.13)]
-0.5℃ - 0.4℃ -0.5℃ - 0.4℃ = 11,916
[11,916 (3.09% / 3.24%)] [19,743 / 359,735 (5.37)]
0.5℃ - 1.4℃ 0.5℃ - 1.4℃ = 8,703
[8,703 (2.26% / 2.37%)] [28,446 / 347,819 (7.74)]
1.5℃ - 2.4℃ 1.5℃ - 2.4℃ = 9,462
[9,462 (2.45% / 2.57%)] [37,908 / 339,116 (10.31)]
2.5℃ - 3.4℃ 2.5℃ - 3.4℃ = 10,466
[10,466 (2.71% / 2.85%)] [48,374 / 329,654 (13.16)]
3.5℃ - 4.4℃ 3.5℃ - 4.4℃ = 11,262
[11,262 (2.92% / 3.06%)] [59,636 / 319,188 (16.22)]
4.5℃ - 5.4℃ 4.5℃ - 5.4℃ = 11,744
[11,744 (3.04% / 3.20%)] [71,380 / 307,926 (19.42)]
5.5℃ - 6.4℃ 5.5℃ - 6.4℃ = 12,278
[12,278 (3.18% / 3.34%)] [83,658 / 296,182 (22.76)]
6.5℃ - 7.4℃ 6.5℃ - 7.4℃ = 12,335
[12,335 (3.20% / 3.36%)] [95,993 / 283,904 (26.12)]
7.5℃ - 8.4℃ 7.5℃ - 8.4℃ = 12,164
[12,164 (3.15% / 3.31%)] [108,157 / 271,569 (29.43)]
8.5℃ - 9.4℃ 8.5℃ - 9.4℃ = 12,147
[12,147 (3.15% / 3.30%)] [120,304 / 259,405 (32.73)]
9.5℃ - 10.4℃ 9.5℃ - 10.4℃ = 11,521
[11,521 (2.99% / 3.13%)] [131,825 / 247,258 (35.86)]
10.5℃ - 11.4℃ 10.5℃ - 11.4℃ = 11,463
[11,463 (2.97% / 3.12%)] [143,288 / 235,737 (38.98)]
11.5℃ - 12.4℃ 11.5℃ - 12.4℃ = 11,327
[11,327 (2.94% / 3.08%)] [154,615 / 224,274 (42.07)]
12.5℃ - 13.4℃ 12.5℃ - 13.4℃ = 10,955
[10,955 (2.84% / 2.98%)] [165,570 / 212,947 (45.05)]
13.5℃ - 14.4℃ 13.5℃ - 14.4℃ = 11,273
[11,273 (2.92% / 3.07%)] [176,843 / 201,992 (48.11)]
14.5℃ - 15.4℃ 14.5℃ - 15.4℃ = 11,458
[11,458 (2.97% / 3.12%)] [188,301 / 190,719 (51.23)]
15.5℃ - 16.4℃ 15.5℃ - 16.4℃ = 12,315
[12,315 (3.19% / 3.35%)] [200,616 / 179,261 (54.58)]
16.5℃ - 17.4℃ 16.5℃ - 17.4℃ = 12,894
[12,894 (3.34% / 3.51%)] [213,510 / 166,946 (58.09)]
17.5℃ - 18.4℃ 17.5℃ - 18.4℃ = 13,603
[13,603 (3.53% / 3.70%)] [227,113 / 154,052 (61.79)]
18.5℃ - 19.4℃ 18.5℃ - 19.4℃ = 13,916
[13,916 (3.61% / 3.79%)] [241,029 / 140,449 (65.58)]
19.5℃ - 20.4℃ 19.5℃ - 20.4℃ = 14,281
[14,281 (3.70% / 3.89%)] [255,310 / 126,533 (69.46)]
20.5℃ - 21.4℃ 20.5℃ - 21.4℃ = 13,990
[13,990 (3.63% / 3.81%)] [269,300 / 112,252 (73.27)]
21.5℃ - 22.4℃ 21.5℃ - 22.4℃ = 13,457
[13,457 (3.49% / 3.66%)] [282,757 / 98,262 (76.93)]
22.5℃ - 23.4℃ 22.5℃ - 23.4℃ = 13,710
[13,710 (3.55% / 3.73%)] [296,467 / 84,805 (80.66)]
23.5℃ - 24.4℃ 23.5℃ - 24.4℃ = 13,394
[13,394 (3.47% / 3.64%)] [309,861 / 71,095 (84.30)]
24.5℃ - 25.4℃ 24.5℃ - 25.4℃ = 12,278
[12,278 (3.18% / 3.34%)] [322,139 / 57,701 (87.64)]
25.5℃ - 26.4℃ 25.5℃ - 26.4℃ = 10,341
[10,341 (2.68% / 2.81%)] [332,480 / 45,423 (90.46)]
26.5℃ - 27.4℃ 26.5℃ - 27.4℃ = 8,322
[8,322 (2.16% / 2.26%)] [340,802 / 35,082 (92.72)]
27.5℃ - 28.4℃ 27.5℃ - 28.4℃ = 6,249
[6,249 (1.62% / 1.70%)] [347,051 / 26,760 (94.42)]
28.5℃ - 29.4℃ 28.5℃ - 29.4℃ = 5,034
[5,034 (1.31% / 1.37%)] [352,085 / 20,511 (95.79)]
29.5℃ - 30.4℃ 29.5℃ - 30.4℃ = 4,023
[4,023 (1.04% / 1.09%)] [356,108 / 15,477 (96.88)]
30.5℃ - 31.4℃ 30.5℃ - 31.4℃ = 3,357
[3,357 (0.87% / 0.91%)] [359,465 / 11,454 (97.80)]
31.5℃ - 32.4℃ 31.5℃ - 32.4℃ = 2,703
[2,703 (0.70% / 0.74%)] [362,168 / 8,097 (98.53)]
32.5℃ - 33.4℃ 32.5℃ - 33.4℃ = 2,128
[2,128 (0.55% / 0.58%)] [364,296 / 5,394 (99.11)]
33.5℃ - 34.4℃ 33.5℃ - 34.4℃ = 1,526
[1,526 (0.40% / 0.42%)] [365,822 / 3,266 (99.53)]
34.5℃ - 35.4℃ 34.5℃ - 35.4℃ = 996
[996 (0.26% / 0.27%)] [366,818 / 1,740 (99.80)]
35.5℃ - 36.4℃ 35.5℃ - 36.4℃ = 493
[493 (0.13% / 0.13%)] [367,311 / 744 (99.93)]
36.5℃ - 37.4℃ 36.5℃ - 37.4℃ = 200
[200 (0.05% / 0.05%)] [367,511 / 251 (99.99)]
37.5℃ - 38.4℃ 37.5℃ - 38.4℃ = 47
[47 (0.01% / 0.01%)] [367,558 / 51 (100.00)]
38.5℃ - 39.4℃ 38.5℃ - 39.4℃ = 3
[3 (0.00% / 0.00%)] [367,561 / 4 (100.00)]
39.5℃ - 40.4℃ 39.5℃ - 40.4℃ = 1
[1 (0.00% / 0.00%)] [367,562 / 1 (100.00)]

欠測回数 (18,142 / 4.70%)

日照時間

0.0h 0.0h = 258,447
[258,447 (67.01% / 70.30%)] [258,447 / 367,615 (70.30)]
0.1h 0.1h = 7,345
[7,345 (1.90% / 2.00%)] [265,792 / 109,168 (72.30)]
0.2h 0.2h = 5,664
[5,664 (1.47% / 1.54%)] [271,456 / 101,823 (73.84)]
0.3h 0.3h = 5,013
[5,013 (1.30% / 1.36%)] [276,469 / 96,159 (75.21)]
0.4h 0.4h = 4,739
[4,739 (1.23% / 1.29%)] [281,208 / 91,146 (76.50)]
0.5h 0.5h = 4,698
[4,698 (1.22% / 1.28%)] [285,906 / 86,407 (77.77)]
0.6h 0.6h = 4,834
[4,834 (1.25% / 1.31%)] [290,740 / 81,709 (79.09)]
0.7h 0.7h = 5,042
[5,042 (1.31% / 1.37%)] [295,782 / 76,875 (80.46)]
0.8h 0.8h = 5,868
[5,868 (1.52% / 1.60%)] [301,650 / 71,833 (82.06)]
0.9h 0.9h = 7,783
[7,783 (2.02% / 2.12%)] [309,433 / 65,965 (84.17)]
1.0h 1.0h = 58,182
[58,182 (15.08% / 15.83%)] [367,615 / 58,182 (100.00)]

欠測回数 (18,089 / 4.69%)