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 497
観測回数 362,795
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 〜 2017年07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
42366 館林(群馬県) 16.99km 281度
41376 小山(栃木県) 18.19km 33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 = 340,181
[340,181 (93.77% / 93.93%)] [340,181 / 362,154 (93.93)]
0.5mm - 1.4mm 0.5mm - 1.4mm = 12,235
[12,235 (3.37% / 3.38%)] [352,416 / 21,973 (97.31)]
1.5mm - 2.4mm 1.5mm - 2.4mm = 4,393
[4,393 (1.21% / 1.21%)] [356,809 / 9,738 (98.52)]
2.5mm - 3.4mm 2.5mm - 3.4mm = 2,033
[2,033 (0.56% / 0.56%)] [358,842 / 5,345 (99.09)]
3.5mm - 4.4mm 3.5mm - 4.4mm = 1,066
[1,066 (0.29% / 0.29%)] [359,908 / 3,312 (99.38)]
4.5mm - 5.4mm 4.5mm - 5.4mm = 614
[614 (0.17% / 0.17%)] [360,522 / 2,246 (99.55)]
5.5mm - 6.4mm 5.5mm - 6.4mm = 399
[399 (0.11% / 0.11%)] [360,921 / 1,632 (99.66)]
6.5mm - 7.4mm 6.5mm - 7.4mm = 283
[283 (0.08% / 0.08%)] [361,204 / 1,233 (99.74)]
7.5mm - 8.4mm 7.5mm - 8.4mm = 190
[190 (0.05% / 0.05%)] [361,394 / 950 (99.79)]
8.5mm - 9.4mm 8.5mm - 9.4mm = 146
[146 (0.04% / 0.04%)] [361,540 / 760 (99.83)]
9.5mm - 10.4mm 9.5mm - 10.4mm = 108
[108 (0.03% / 0.03%)] [361,648 / 614 (99.86)]
10.5mm - 11.4mm 10.5mm - 11.4mm = 83
[83 (0.02% / 0.02%)] [361,731 / 506 (99.88)]
11.5mm - 12.4mm 11.5mm - 12.4mm = 64
[64 (0.02% / 0.02%)] [361,795 / 423 (99.90)]
12.5mm - 13.4mm 12.5mm - 13.4mm = 64
[64 (0.02% / 0.02%)] [361,859 / 359 (99.92)]
13.5mm - 14.4mm 13.5mm - 14.4mm = 39
[39 (0.01% / 0.01%)] [361,898 / 295 (99.93)]
14.5mm - 15.4mm 14.5mm - 15.4mm = 35
[35 (0.01% / 0.01%)] [361,933 / 256 (99.94)]
15.5mm - 16.4mm 15.5mm - 16.4mm = 31
[31 (0.01% / 0.01%)] [361,964 / 221 (99.95)]
16.5mm - 17.4mm 16.5mm - 17.4mm = 14
[14 (0.00% / 0.00%)] [361,978 / 190 (99.95)]
17.5mm - 18.4mm 17.5mm - 18.4mm = 26
[26 (0.01% / 0.01%)] [362,004 / 176 (99.96)]
18.5mm - 19.4mm 18.5mm - 19.4mm = 23
[23 (0.01% / 0.01%)] [362,027 / 150 (99.96)]
19.5mm - 20.4mm 19.5mm - 20.4mm = 11
[11 (0.00% / 0.00%)] [362,038 / 127 (99.97)]
20.5mm - 21.4mm 20.5mm - 21.4mm = 11
[11 (0.00% / 0.00%)] [362,049 / 116 (99.97)]
21.5mm - 22.4mm 21.5mm - 22.4mm = 15
[15 (0.00% / 0.00%)] [362,064 / 105 (99.98)]
22.5mm - 23.4mm 22.5mm - 23.4mm = 8
[8 (0.00% / 0.00%)] [362,072 / 90 (99.98)]
23.5mm - 24.4mm 23.5mm - 24.4mm = 7
[7 (0.00% / 0.00%)] [362,079 / 82 (99.98)]
24.5mm - 25.4mm 24.5mm - 25.4mm = 8
[8 (0.00% / 0.00%)] [362,087 / 75 (99.98)]
25.5mm - 26.4mm 25.5mm - 26.4mm = 9
[9 (0.00% / 0.00%)] [362,096 / 67 (99.98)]
26.5mm - 27.4mm 26.5mm - 27.4mm = 2
[2 (0.00% / 0.00%)] [362,098 / 58 (99.98)]
27.5mm - 28.4mm 27.5mm - 28.4mm = 4
[4 (0.00% / 0.00%)] [362,102 / 56 (99.99)]
28.5mm - 29.4mm 28.5mm - 29.4mm = 6
[6 (0.00% / 0.00%)] [362,108 / 52 (99.99)]
29.5mm - 30.4mm 29.5mm - 30.4mm = 5
[5 (0.00% / 0.00%)] [362,113 / 46 (99.99)]
30.5mm - 31.4mm 30.5mm - 31.4mm = 3
[3 (0.00% / 0.00%)] [362,116 / 41 (99.99)]
31.5mm - 32.4mm 31.5mm - 32.4mm = 6
[6 (0.00% / 0.00%)] [362,122 / 38 (99.99)]
32.5mm - 33.4mm 32.5mm - 33.4mm = 3
[3 (0.00% / 0.00%)] [362,125 / 32 (99.99)]
33.5mm - 34.4mm 33.5mm - 34.4mm = 4
[4 (0.00% / 0.00%)] [362,129 / 29 (99.99)]
34.5mm - 35.4mm 34.5mm - 35.4mm = 4
[4 (0.00% / 0.00%)] [362,133 / 25 (99.99)]
35.5mm - 36.4mm 35.5mm - 36.4mm = 5
[5 (0.00% / 0.00%)] [362,138 / 21 (100.00)]
36.5mm - 37.4mm 36.5mm - 37.4mm = 2
[2 (0.00% / 0.00%)] [362,140 / 16 (100.00)]
37.5mm - 38.4mm 37.5mm - 38.4mm = 1
[1 (0.00% / 0.00%)] [362,141 / 14 (100.00)]
38.5mm - 39.4mm 38.5mm - 39.4mm = 1
[1 (0.00% / 0.00%)] [362,142 / 13 (100.00)]
40.5mm - 41.4mm 40.5mm - 41.4mm = 1
[1 (0.00% / 0.00%)] [362,143 / 12 (100.00)]
41.5mm - 42.4mm 41.5mm - 42.4mm = 1
[1 (0.00% / 0.00%)] [362,144 / 11 (100.00)]
43.5mm - 44.4mm 43.5mm - 44.4mm = 3
[3 (0.00% / 0.00%)] [362,147 / 10 (100.00)]
44.5mm - 45.4mm 44.5mm - 45.4mm = 3
[3 (0.00% / 0.00%)] [362,150 / 7 (100.00)]
46.5mm - 47.4mm 46.5mm - 47.4mm = 1
[1 (0.00% / 0.00%)] [362,151 / 4 (100.00)]
47.5mm - 48.4mm 47.5mm - 48.4mm = 1
[1 (0.00% / 0.00%)] [362,152 / 3 (100.00)]
49.5mm - 50.4mm 49.5mm - 50.4mm = 1
[1 (0.00% / 0.00%)] [362,153 / 2 (100.00)]
68.5mm - 69.4mm 68.5mm - 69.4mm = 1
[1 (0.00% / 0.00%)] [362,154 / 1 (100.00)]

欠測回数 (641 / 0.18%)

風向

静穏 静穏 = 59,398
[59,398 (16.37% / 17.15%)]
北北東 北北東 = 41,212
[41,212 (11.36% / 11.90%)]
北東 北東 = 26,702
[26,702 (7.36% / 7.71%)]
東北東 東北東 = 14,285
[14,285 (3.94% / 4.12%)]
東 = 10,303
[10,303 (2.84% / 2.97%)]
東南東 東南東 = 24,416
[24,416 (6.73% / 7.05%)]
南東 南東 = 22,072
[22,072 (6.08% / 6.37%)]
南南東 南南東 = 16,981
[16,981 (4.68% / 4.90%)]
南 = 14,519
[14,519 (4.00% / 4.19%)]
南南西 南南西 = 7,736
[7,736 (2.13% / 2.23%)]
南西 南西 = 6,288
[6,288 (1.73% / 1.82%)]
西南西 西南西 = 8,830
[8,830 (2.43% / 2.55%)]
西 西 = 16,394
[16,394 (4.52% / 4.73%)]
西北西 西北西 = 31,056
[31,056 (8.56% / 8.97%)]
北西 北西 = 16,403
[16,403 (4.52% / 4.74%)]
北北西 北北西 = 10,452
[10,452 (2.88% / 3.02%)]
北 = 19,291
[19,291 (5.32% / 5.57%)]

欠測回数 (16,457 / 4.54%)

風速

0.0m/s - 0.4m/s 0.0m/s - 0.4m/s = 62,255
[62,255 (17.16% / 17.97%)] [62,255 / 346,393 (17.97)]
0.5m/s - 1.4m/s 0.5m/s - 1.4m/s = 138,491
[138,491 (38.17% / 39.98%)] [200,746 / 284,138 (57.95)]
1.5m/s - 2.4m/s 1.5m/s - 2.4m/s = 84,724
[84,724 (23.35% / 24.46%)] [285,470 / 145,647 (82.41)]
2.5m/s - 3.4m/s 2.5m/s - 3.4m/s = 34,648
[34,648 (9.55% / 10.00%)] [320,118 / 60,923 (92.41)]
3.5m/s - 4.4m/s 3.5m/s - 4.4m/s = 14,627
[14,627 (4.03% / 4.22%)] [334,745 / 26,275 (96.64)]
4.5m/s - 5.4m/s 4.5m/s - 5.4m/s = 6,598
[6,598 (1.82% / 1.90%)] [341,343 / 11,648 (98.54)]
5.5m/s - 6.4m/s 5.5m/s - 6.4m/s = 3,027
[3,027 (0.83% / 0.87%)] [344,370 / 5,050 (99.42)]
6.5m/s - 7.4m/s 6.5m/s - 7.4m/s = 1,320
[1,320 (0.36% / 0.38%)] [345,690 / 2,023 (99.80)]
7.5m/s - 8.4m/s 7.5m/s - 8.4m/s = 500
[500 (0.14% / 0.14%)] [346,190 / 703 (99.94)]
8.5m/s - 9.4m/s 8.5m/s - 9.4m/s = 144
[144 (0.04% / 0.04%)] [346,334 / 203 (99.98)]
9.5m/s - 10.4m/s 9.5m/s - 10.4m/s = 37
[37 (0.01% / 0.01%)] [346,371 / 59 (99.99)]
10.5m/s - 11.4m/s 10.5m/s - 11.4m/s = 12
[12 (0.00% / 0.00%)] [346,383 / 22 (100.00)]
11.5m/s - 12.4m/s 11.5m/s - 12.4m/s = 9
[9 (0.00% / 0.00%)] [346,392 / 10 (100.00)]
12.5m/s - 13.4m/s 12.5m/s - 13.4m/s = 1
[1 (0.00% / 0.00%)] [346,393 / 1 (100.00)]

欠測回数 (16,402 / 4.52%)

気温

-11.5℃ - -10.6℃ -11.5℃ - -10.6℃ = 1
[1 (0.00% / 0.00%)] [1 / 346,374 (0.00)]
-10.5℃ - -9.6℃ -10.5℃ - -9.6℃ = 2
[2 (0.00% / 0.00%)] [3 / 346,373 (0.00)]
-9.5℃ - -8.6℃ -9.5℃ - -8.6℃ = 1
[1 (0.00% / 0.00%)] [4 / 346,371 (0.00)]
-8.5℃ - -7.6℃ -8.5℃ - -7.6℃ = 1
[1 (0.00% / 0.00%)] [5 / 346,370 (0.00)]
-7.5℃ - -6.6℃ -7.5℃ - -6.6℃ = 13
[13 (0.00% / 0.00%)] [18 / 346,369 (0.01)]
-6.5℃ - -5.6℃ -6.5℃ - -5.6℃ = 54
[54 (0.01% / 0.02%)] [72 / 346,356 (0.02)]
-5.5℃ - -4.6℃ -5.5℃ - -4.6℃ = 168
[168 (0.05% / 0.05%)] [240 / 346,302 (0.07)]
-4.5℃ - -3.6℃ -4.5℃ - -3.6℃ = 488
[488 (0.13% / 0.14%)] [728 / 346,134 (0.21)]
-3.5℃ - -2.6℃ -3.5℃ - -2.6℃ = 1,088
[1,088 (0.30% / 0.31%)] [1,816 / 345,646 (0.52)]
-2.5℃ - -1.6℃ -2.5℃ - -1.6℃ = 2,060
[2,060 (0.57% / 0.59%)] [3,876 / 344,558 (1.12)]
-1.5℃ - -0.6℃ -1.5℃ - -0.6℃ = 3,614
[3,614 (1.00% / 1.04%)] [7,490 / 342,498 (2.16)]
-0.5℃ - 0.4℃ -0.5℃ - 0.4℃ = 11,349
[11,349 (3.13% / 3.28%)] [18,839 / 338,884 (5.44)]
0.5℃ - 1.4℃ 0.5℃ - 1.4℃ = 8,323
[8,323 (2.29% / 2.40%)] [27,162 / 327,535 (7.84)]
1.5℃ - 2.4℃ 1.5℃ - 2.4℃ = 9,053
[9,053 (2.50% / 2.61%)] [36,215 / 319,212 (10.46)]
2.5℃ - 3.4℃ 2.5℃ - 3.4℃ = 9,957
[9,957 (2.74% / 2.87%)] [46,172 / 310,159 (13.33)]
3.5℃ - 4.4℃ 3.5℃ - 4.4℃ = 10,635
[10,635 (2.93% / 3.07%)] [56,807 / 300,202 (16.40)]
4.5℃ - 5.4℃ 4.5℃ - 5.4℃ = 11,181
[11,181 (3.08% / 3.23%)] [67,988 / 289,567 (19.63)]
5.5℃ - 6.4℃ 5.5℃ - 6.4℃ = 11,629
[11,629 (3.21% / 3.36%)] [79,617 / 278,386 (22.99)]
6.5℃ - 7.4℃ 6.5℃ - 7.4℃ = 11,614
[11,614 (3.20% / 3.35%)] [91,231 / 266,757 (26.34)]
7.5℃ - 8.4℃ 7.5℃ - 8.4℃ = 11,469
[11,469 (3.16% / 3.31%)] [102,700 / 255,143 (29.65)]
8.5℃ - 9.4℃ 8.5℃ - 9.4℃ = 11,466
[11,466 (3.16% / 3.31%)] [114,166 / 243,674 (32.96)]
9.5℃ - 10.4℃ 9.5℃ - 10.4℃ = 10,863
[10,863 (2.99% / 3.14%)] [125,029 / 232,208 (36.10)]
10.5℃ - 11.4℃ 10.5℃ - 11.4℃ = 10,840
[10,840 (2.99% / 3.13%)] [135,869 / 221,345 (39.23)]
11.5℃ - 12.4℃ 11.5℃ - 12.4℃ = 10,732
[10,732 (2.96% / 3.10%)] [146,601 / 210,505 (42.32)]
12.5℃ - 13.4℃ 12.5℃ - 13.4℃ = 10,304
[10,304 (2.84% / 2.97%)] [156,905 / 199,773 (45.30)]
13.5℃ - 14.4℃ 13.5℃ - 14.4℃ = 10,606
[10,606 (2.92% / 3.06%)] [167,511 / 189,469 (48.36)]
14.5℃ - 15.4℃ 14.5℃ - 15.4℃ = 10,747
[10,747 (2.96% / 3.10%)] [178,258 / 178,863 (51.46)]
15.5℃ - 16.4℃ 15.5℃ - 16.4℃ = 11,667
[11,667 (3.22% / 3.37%)] [189,925 / 168,116 (54.83)]
16.5℃ - 17.4℃ 16.5℃ - 17.4℃ = 12,192
[12,192 (3.36% / 3.52%)] [202,117 / 156,449 (58.35)]
17.5℃ - 18.4℃ 17.5℃ - 18.4℃ = 12,862
[12,862 (3.55% / 3.71%)] [214,979 / 144,257 (62.07)]
18.5℃ - 19.4℃ 18.5℃ - 19.4℃ = 13,050
[13,050 (3.60% / 3.77%)] [228,029 / 131,395 (65.83)]
19.5℃ - 20.4℃ 19.5℃ - 20.4℃ = 13,443
[13,443 (3.71% / 3.88%)] [241,472 / 118,345 (69.71)]
20.5℃ - 21.4℃ 20.5℃ - 21.4℃ = 13,144
[13,144 (3.62% / 3.79%)] [254,616 / 104,902 (73.51)]
21.5℃ - 22.4℃ 21.5℃ - 22.4℃ = 12,620
[12,620 (3.48% / 3.64%)] [267,236 / 91,758 (77.15)]
22.5℃ - 23.4℃ 22.5℃ - 23.4℃ = 12,956
[12,956 (3.57% / 3.74%)] [280,192 / 79,138 (80.89)]
23.5℃ - 24.4℃ 23.5℃ - 24.4℃ = 12,626
[12,626 (3.48% / 3.65%)] [292,818 / 66,182 (84.54)]
24.5℃ - 25.4℃ 24.5℃ - 25.4℃ = 11,553
[11,553 (3.18% / 3.34%)] [304,371 / 53,556 (87.87)]
25.5℃ - 26.4℃ 25.5℃ - 26.4℃ = 9,654
[9,654 (2.66% / 2.79%)] [314,025 / 42,003 (90.66)]
26.5℃ - 27.4℃ 26.5℃ - 27.4℃ = 7,654
[7,654 (2.11% / 2.21%)] [321,679 / 32,349 (92.87)]
27.5℃ - 28.4℃ 27.5℃ - 28.4℃ = 5,716
[5,716 (1.58% / 1.65%)] [327,395 / 24,695 (94.52)]
28.5℃ - 29.4℃ 28.5℃ - 29.4℃ = 4,650
[4,650 (1.28% / 1.34%)] [332,045 / 18,979 (95.86)]
29.5℃ - 30.4℃ 29.5℃ - 30.4℃ = 3,759
[3,759 (1.04% / 1.09%)] [335,804 / 14,329 (96.95)]
30.5℃ - 31.4℃ 30.5℃ - 31.4℃ = 3,131
[3,131 (0.86% / 0.90%)] [338,935 / 10,570 (97.85)]
31.5℃ - 32.4℃ 31.5℃ - 32.4℃ = 2,515
[2,515 (0.69% / 0.73%)] [341,450 / 7,439 (98.58)]
32.5℃ - 33.4℃ 32.5℃ - 33.4℃ = 1,974
[1,974 (0.54% / 0.57%)] [343,424 / 4,924 (99.15)]
33.5℃ - 34.4℃ 33.5℃ - 34.4℃ = 1,406
[1,406 (0.39% / 0.41%)] [344,830 / 2,950 (99.55)]
34.5℃ - 35.4℃ 34.5℃ - 35.4℃ = 890
[890 (0.25% / 0.26%)] [345,720 / 1,544 (99.81)]
35.5℃ - 36.4℃ 35.5℃ - 36.4℃ = 435
[435 (0.12% / 0.13%)] [346,155 / 654 (99.94)]
36.5℃ - 37.4℃ 36.5℃ - 37.4℃ = 178
[178 (0.05% / 0.05%)] [346,333 / 219 (99.99)]
37.5℃ - 38.4℃ 37.5℃ - 38.4℃ = 37
[37 (0.01% / 0.01%)] [346,370 / 41 (100.00)]
38.5℃ - 39.4℃ 38.5℃ - 39.4℃ = 3
[3 (0.00% / 0.00%)] [346,373 / 4 (100.00)]
39.5℃ - 40.4℃ 39.5℃ - 40.4℃ = 1
[1 (0.00% / 0.00%)] [346,374 / 1 (100.00)]

欠測回数 (16,421 / 4.53%)

日照時間

0.0h 0.0h = 243,953
[243,953 (67.24% / 70.42%)] [243,953 / 346,428 (70.42)]
0.1h 0.1h = 6,799
[6,799 (1.87% / 1.96%)] [250,752 / 102,475 (72.38)]
0.2h 0.2h = 5,262
[5,262 (1.45% / 1.52%)] [256,014 / 95,676 (73.90)]
0.3h 0.3h = 4,669
[4,669 (1.29% / 1.35%)] [260,683 / 90,414 (75.25)]
0.4h 0.4h = 4,418
[4,418 (1.22% / 1.28%)] [265,101 / 85,745 (76.52)]
0.5h 0.5h = 4,379
[4,379 (1.21% / 1.26%)] [269,480 / 81,327 (77.79)]
0.6h 0.6h = 4,496
[4,496 (1.24% / 1.30%)] [273,976 / 76,948 (79.09)]
0.7h 0.7h = 4,734
[4,734 (1.30% / 1.37%)] [278,710 / 72,452 (80.45)]
0.8h 0.8h = 5,502
[5,502 (1.52% / 1.59%)] [284,212 / 67,718 (82.04)]
0.9h 0.9h = 7,342
[7,342 (2.02% / 2.12%)] [291,554 / 62,216 (84.16)]
1.0h 1.0h = 54,874
[54,874 (15.13% / 15.84%)] [346,428 / 54,874 (100.00)]

欠測回数 (16,367 / 4.51%)