観測所番号 42326
都道府県 群馬県 [ 地域ポータル ]
所在地 群馬県甘楽郡下仁田町西野牧 (群馬県甘楽郡下仁田町)
観測月数 526
観測回数 383,136
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 〜 1977年12月19日 西野牧 (ニシノマキ) 36.245N 138.707E 375m 0.0m
1977年12月20日 〜 1986年08月20日 西野牧 (ニシノマキ) 36.245N 138.707E 375m 6.5m
1986年08月21日 〜 1998年03月30日 西野牧 (ニシノマキ) 36.245N 138.707E 375m 6.5m
1998年03月31日 〜 2009年02月18日 西野牧 (ニシノマキ) 36.245N 138.707E 375m 6.5m
2009年02月19日 〜 2010年03月25日 西野牧 (ニシノマキ) 36.245N 138.707E 375m 6.5m
2010年03月26日 〜 2019年12月99日 西野牧 (ニシノマキ) 36.245N 138.707E 375m 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
42276 一の字山(群馬県) 14.76km 342度
48456 十石峠(長野県) 16.19km 200度
42391 稲含山(群馬県) 16.31km 120度
48331 軽井沢(長野県) 17.96km 306度
48386 佐久(長野県) 20.67km 270度
48516 北相木(長野県) 21.01km 204度
48451 茂来山(長野県) 21.82km 225度
42286 上里見(群馬県) 22.35km 49度
42396 神流(群馬県) 22.87km 131度
42241 榛名山(群馬県) 29.27km 30度

全期間統計

降水量

0.0mm - 0.4mm 0.0mm - 0.4mm = 354,592
[354,592 (92.55% / 93.43%)] [354,592 / 379,523 (93.43)]
0.5mm - 1.4mm 0.5mm - 1.4mm = 14,588
[14,588 (3.81% / 3.84%)] [369,180 / 24,931 (97.27)]
1.5mm - 2.4mm 1.5mm - 2.4mm = 4,612
[4,612 (1.20% / 1.22%)] [373,792 / 10,343 (98.49)]
2.5mm - 3.4mm 2.5mm - 3.4mm = 2,155
[2,155 (0.56% / 0.57%)] [375,947 / 5,731 (99.06)]
3.5mm - 4.4mm 3.5mm - 4.4mm = 1,169
[1,169 (0.31% / 0.31%)] [377,116 / 3,576 (99.37)]
4.5mm - 5.4mm 4.5mm - 5.4mm = 682
[682 (0.18% / 0.18%)] [377,798 / 2,407 (99.55)]
5.5mm - 6.4mm 5.5mm - 6.4mm = 444
[444 (0.12% / 0.12%)] [378,242 / 1,725 (99.66)]
6.5mm - 7.4mm 6.5mm - 7.4mm = 303
[303 (0.08% / 0.08%)] [378,545 / 1,281 (99.74)]
7.5mm - 8.4mm 7.5mm - 8.4mm = 202
[202 (0.05% / 0.05%)] [378,747 / 978 (99.80)]
8.5mm - 9.4mm 8.5mm - 9.4mm = 144
[144 (0.04% / 0.04%)] [378,891 / 776 (99.83)]
9.5mm - 10.4mm 9.5mm - 10.4mm = 120
[120 (0.03% / 0.03%)] [379,011 / 632 (99.87)]
10.5mm - 11.4mm 10.5mm - 11.4mm = 80
[80 (0.02% / 0.02%)] [379,091 / 512 (99.89)]
11.5mm - 12.4mm 11.5mm - 12.4mm = 56
[56 (0.01% / 0.01%)] [379,147 / 432 (99.90)]
12.5mm - 13.4mm 12.5mm - 13.4mm = 60
[60 (0.02% / 0.02%)] [379,207 / 376 (99.92)]
13.5mm - 14.4mm 13.5mm - 14.4mm = 41
[41 (0.01% / 0.01%)] [379,248 / 316 (99.93)]
14.5mm - 15.4mm 14.5mm - 15.4mm = 35
[35 (0.01% / 0.01%)] [379,283 / 275 (99.94)]
15.5mm - 16.4mm 15.5mm - 16.4mm = 29
[29 (0.01% / 0.01%)] [379,312 / 240 (99.94)]
16.5mm - 17.4mm 16.5mm - 17.4mm = 27
[27 (0.01% / 0.01%)] [379,339 / 211 (99.95)]
17.5mm - 18.4mm 17.5mm - 18.4mm = 19
[19 (0.00% / 0.01%)] [379,358 / 184 (99.96)]
18.5mm - 19.4mm 18.5mm - 19.4mm = 15
[15 (0.00% / 0.00%)] [379,373 / 165 (99.96)]
19.5mm - 20.4mm 19.5mm - 20.4mm = 15
[15 (0.00% / 0.00%)] [379,388 / 150 (99.96)]
20.5mm - 21.4mm 20.5mm - 21.4mm = 10
[10 (0.00% / 0.00%)] [379,398 / 135 (99.97)]
21.5mm - 22.4mm 21.5mm - 22.4mm = 15
[15 (0.00% / 0.00%)] [379,413 / 125 (99.97)]
22.5mm - 23.4mm 22.5mm - 23.4mm = 10
[10 (0.00% / 0.00%)] [379,423 / 110 (99.97)]
23.5mm - 24.4mm 23.5mm - 24.4mm = 9
[9 (0.00% / 0.00%)] [379,432 / 100 (99.98)]
24.5mm - 25.4mm 24.5mm - 25.4mm = 10
[10 (0.00% / 0.00%)] [379,442 / 91 (99.98)]
25.5mm - 26.4mm 25.5mm - 26.4mm = 9
[9 (0.00% / 0.00%)] [379,451 / 81 (99.98)]
26.5mm - 27.4mm 26.5mm - 27.4mm = 10
[10 (0.00% / 0.00%)] [379,461 / 72 (99.98)]
27.5mm - 28.4mm 27.5mm - 28.4mm = 4
[4 (0.00% / 0.00%)] [379,465 / 62 (99.98)]
28.5mm - 29.4mm 28.5mm - 29.4mm = 8
[8 (0.00% / 0.00%)] [379,473 / 58 (99.99)]
29.5mm - 30.4mm 29.5mm - 30.4mm = 4
[4 (0.00% / 0.00%)] [379,477 / 50 (99.99)]
30.5mm - 31.4mm 30.5mm - 31.4mm = 3
[3 (0.00% / 0.00%)] [379,480 / 46 (99.99)]
31.5mm - 32.4mm 31.5mm - 32.4mm = 6
[6 (0.00% / 0.00%)] [379,486 / 43 (99.99)]
32.5mm - 33.4mm 32.5mm - 33.4mm = 1
[1 (0.00% / 0.00%)] [379,487 / 37 (99.99)]
33.5mm - 34.4mm 33.5mm - 34.4mm = 2
[2 (0.00% / 0.00%)] [379,489 / 36 (99.99)]
34.5mm - 35.4mm 34.5mm - 35.4mm = 1
[1 (0.00% / 0.00%)] [379,490 / 34 (99.99)]
35.5mm - 36.4mm 35.5mm - 36.4mm = 2
[2 (0.00% / 0.00%)] [379,492 / 33 (99.99)]
36.5mm - 37.4mm 36.5mm - 37.4mm = 1
[1 (0.00% / 0.00%)] [379,493 / 31 (99.99)]
38.5mm - 39.4mm 38.5mm - 39.4mm = 3
[3 (0.00% / 0.00%)] [379,496 / 30 (99.99)]
39.5mm - 40.4mm 39.5mm - 40.4mm = 4
[4 (0.00% / 0.00%)] [379,500 / 27 (99.99)]
40.5mm - 41.4mm 40.5mm - 41.4mm = 7
[7 (0.00% / 0.00%)] [379,507 / 23 (100.00)]
41.5mm - 42.4mm 41.5mm - 42.4mm = 1
[1 (0.00% / 0.00%)] [379,508 / 16 (100.00)]
42.5mm - 43.4mm 42.5mm - 43.4mm = 1
[1 (0.00% / 0.00%)] [379,509 / 15 (100.00)]
43.5mm - 44.4mm 43.5mm - 44.4mm = 2
[2 (0.00% / 0.00%)] [379,511 / 14 (100.00)]
44.5mm - 45.4mm 44.5mm - 45.4mm = 2
[2 (0.00% / 0.00%)] [379,513 / 12 (100.00)]
45.5mm - 46.4mm 45.5mm - 46.4mm = 1
[1 (0.00% / 0.00%)] [379,514 / 10 (100.00)]
46.5mm - 47.4mm 46.5mm - 47.4mm = 3
[3 (0.00% / 0.00%)] [379,517 / 9 (100.00)]
47.5mm - 48.4mm 47.5mm - 48.4mm = 1
[1 (0.00% / 0.00%)] [379,518 / 6 (100.00)]
48.5mm - 49.4mm 48.5mm - 49.4mm = 1
[1 (0.00% / 0.00%)] [379,519 / 5 (100.00)]
50.5mm - 51.4mm 50.5mm - 51.4mm = 1
[1 (0.00% / 0.00%)] [379,520 / 4 (100.00)]
53.5mm - 54.4mm 53.5mm - 54.4mm = 1
[1 (0.00% / 0.00%)] [379,521 / 3 (100.00)]
68.5mm - 69.4mm 68.5mm - 69.4mm = 2
[2 (0.00% / 0.00%)] [379,523 / 2 (100.00)]

欠測回数 (3,613 / 0.94%)

風向

静穏 静穏 = 132,498
[132,498 (34.58% / 36.06%)]
北北東 北北東 = 3,331
[3,331 (0.87% / 0.91%)]
北東 北東 = 1,963
[1,963 (0.51% / 0.53%)]
東北東 東北東 = 1,415
[1,415 (0.37% / 0.39%)]
東 = 1,678
[1,678 (0.44% / 0.46%)]
東南東 東南東 = 2,788
[2,788 (0.73% / 0.76%)]
南東 南東 = 5,805
[5,805 (1.52% / 1.58%)]
南南東 南南東 = 27,320
[27,320 (7.13% / 7.43%)]
南 = 34,742
[34,742 (9.07% / 9.45%)]
南南西 南南西 = 8,535
[8,535 (2.23% / 2.32%)]
南西 南西 = 3,671
[3,671 (0.96% / 1.00%)]
西南西 西南西 = 2,897
[2,897 (0.76% / 0.79%)]
西 西 = 3,622
[3,622 (0.95% / 0.99%)]
西北西 西北西 = 8,741
[8,741 (2.28% / 2.38%)]
北西 北西 = 48,746
[48,746 (12.72% / 13.27%)]
北北西 北北西 = 71,203
[71,203 (18.58% / 19.38%)]
北 = 8,503
[8,503 (2.22% / 2.31%)]

欠測回数 (15,678 / 4.09%)

風速

0.0m/s - 0.4m/s 0.0m/s - 0.4m/s = 143,317
[143,317 (37.41% / 38.96%)] [143,317 / 367,828 (38.96)]
0.5m/s - 1.4m/s 0.5m/s - 1.4m/s = 119,733
[119,733 (31.25% / 32.55%)] [263,050 / 224,511 (71.51)]
1.5m/s - 2.4m/s 1.5m/s - 2.4m/s = 56,084
[56,084 (14.64% / 15.25%)] [319,134 / 104,778 (86.76)]
2.5m/s - 3.4m/s 2.5m/s - 3.4m/s = 31,030
[31,030 (8.10% / 8.44%)] [350,164 / 48,694 (95.20)]
3.5m/s - 4.4m/s 3.5m/s - 4.4m/s = 13,407
[13,407 (3.50% / 3.64%)] [363,571 / 17,664 (98.84)]
4.5m/s - 5.4m/s 4.5m/s - 5.4m/s = 3,387
[3,387 (0.88% / 0.92%)] [366,958 / 4,257 (99.76)]
5.5m/s - 6.4m/s 5.5m/s - 6.4m/s = 683
[683 (0.18% / 0.19%)] [367,641 / 870 (99.95)]
6.5m/s - 7.4m/s 6.5m/s - 7.4m/s = 140
[140 (0.04% / 0.04%)] [367,781 / 187 (99.99)]
7.5m/s - 8.4m/s 7.5m/s - 8.4m/s = 36
[36 (0.01% / 0.01%)] [367,817 / 47 (100.00)]
8.5m/s - 9.4m/s 8.5m/s - 9.4m/s = 7
[7 (0.00% / 0.00%)] [367,824 / 11 (100.00)]
9.5m/s - 10.4m/s 9.5m/s - 10.4m/s = 4
[4 (0.00% / 0.00%)] [367,828 / 4 (100.00)]

欠測回数 (15,308 / 4.00%)

気温

-9.5℃ - -8.6℃ -9.5℃ - -8.6℃ = 4
[4 (0.00% / 0.00%)] [4 / 367,901 (0.00)]
-8.5℃ - -7.6℃ -8.5℃ - -7.6℃ = 46
[46 (0.01% / 0.01%)] [50 / 367,897 (0.01)]
-7.5℃ - -6.6℃ -7.5℃ - -6.6℃ = 195
[195 (0.05% / 0.05%)] [245 / 367,851 (0.07)]
-6.5℃ - -5.6℃ -6.5℃ - -5.6℃ = 467
[467 (0.12% / 0.13%)] [712 / 367,656 (0.19)]
-5.5℃ - -4.6℃ -5.5℃ - -4.6℃ = 1,072
[1,072 (0.28% / 0.29%)] [1,784 / 367,189 (0.48)]
-4.5℃ - -3.6℃ -4.5℃ - -3.6℃ = 2,132
[2,132 (0.56% / 0.58%)] [3,916 / 366,117 (1.06)]
-3.5℃ - -2.6℃ -3.5℃ - -2.6℃ = 4,214
[4,214 (1.10% / 1.15%)] [8,130 / 363,985 (2.21)]
-2.5℃ - -1.6℃ -2.5℃ - -1.6℃ = 6,923
[6,923 (1.81% / 1.88%)] [15,053 / 359,771 (4.09)]
-1.5℃ - -0.6℃ -1.5℃ - -0.6℃ = 10,402
[10,402 (2.71% / 2.83%)] [25,455 / 352,848 (6.92)]
-0.5℃ - 0.4℃ -0.5℃ - 0.4℃ = 22,959
[22,959 (5.99% / 6.24%)] [48,414 / 342,446 (13.16)]
0.5℃ - 1.4℃ 0.5℃ - 1.4℃ = 11,786
[11,786 (3.08% / 3.20%)] [60,200 / 319,487 (16.36)]
1.5℃ - 2.4℃ 1.5℃ - 2.4℃ = 11,482
[11,482 (3.00% / 3.12%)] [71,682 / 307,701 (19.48)]
2.5℃ - 3.4℃ 2.5℃ - 3.4℃ = 11,034
[11,034 (2.88% / 3.00%)] [82,716 / 296,219 (22.48)]
3.5℃ - 4.4℃ 3.5℃ - 4.4℃ = 11,450
[11,450 (2.99% / 3.11%)] [94,166 / 285,185 (25.60)]
4.5℃ - 5.4℃ 4.5℃ - 5.4℃ = 11,228
[11,228 (2.93% / 3.05%)] [105,394 / 273,735 (28.65)]
5.5℃ - 6.4℃ 5.5℃ - 6.4℃ = 11,359
[11,359 (2.96% / 3.09%)] [116,753 / 262,507 (31.73)]
6.5℃ - 7.4℃ 6.5℃ - 7.4℃ = 11,338
[11,338 (2.96% / 3.08%)] [128,091 / 251,148 (34.82)]
7.5℃ - 8.4℃ 7.5℃ - 8.4℃ = 10,981
[10,981 (2.87% / 2.98%)] [139,072 / 239,810 (37.80)]
8.5℃ - 9.4℃ 8.5℃ - 9.4℃ = 11,013
[11,013 (2.87% / 2.99%)] [150,085 / 228,829 (40.79)]
9.5℃ - 10.4℃ 9.5℃ - 10.4℃ = 11,040
[11,040 (2.88% / 3.00%)] [161,125 / 217,816 (43.80)]
10.5℃ - 11.4℃ 10.5℃ - 11.4℃ = 11,335
[11,335 (2.96% / 3.08%)] [172,460 / 206,776 (46.88)]
11.5℃ - 12.4℃ 11.5℃ - 12.4℃ = 11,354
[11,354 (2.96% / 3.09%)] [183,814 / 195,441 (49.96)]
12.5℃ - 13.4℃ 12.5℃ - 13.4℃ = 11,514
[11,514 (3.01% / 3.13%)] [195,328 / 184,087 (53.09)]
13.5℃ - 14.4℃ 13.5℃ - 14.4℃ = 11,823
[11,823 (3.09% / 3.21%)] [207,151 / 172,573 (56.31)]
14.5℃ - 15.4℃ 14.5℃ - 15.4℃ = 11,742
[11,742 (3.06% / 3.19%)] [218,893 / 160,750 (59.50)]
15.5℃ - 16.4℃ 15.5℃ - 16.4℃ = 12,738
[12,738 (3.32% / 3.46%)] [231,631 / 149,008 (62.96)]
16.5℃ - 17.4℃ 16.5℃ - 17.4℃ = 12,868
[12,868 (3.36% / 3.50%)] [244,499 / 136,270 (66.46)]
17.5℃ - 18.4℃ 17.5℃ - 18.4℃ = 13,829
[13,829 (3.61% / 3.76%)] [258,328 / 123,402 (70.22)]
18.5℃ - 19.4℃ 18.5℃ - 19.4℃ = 13,894
[13,894 (3.63% / 3.78%)] [272,222 / 109,573 (73.99)]
19.5℃ - 20.4℃ 19.5℃ - 20.4℃ = 14,221
[14,221 (3.71% / 3.87%)] [286,443 / 95,679 (77.86)]
20.5℃ - 21.4℃ 20.5℃ - 21.4℃ = 14,051
[14,051 (3.67% / 3.82%)] [300,494 / 81,458 (81.68)]
21.5℃ - 22.4℃ 21.5℃ - 22.4℃ = 14,216
[14,216 (3.71% / 3.86%)] [314,710 / 67,407 (85.54)]
22.5℃ - 23.4℃ 22.5℃ - 23.4℃ = 12,371
[12,371 (3.23% / 3.36%)] [327,081 / 53,191 (88.90)]
23.5℃ - 24.4℃ 23.5℃ - 24.4℃ = 9,417
[9,417 (2.46% / 2.56%)] [336,498 / 40,820 (91.46)]
24.5℃ - 25.4℃ 24.5℃ - 25.4℃ = 7,035
[7,035 (1.84% / 1.91%)] [343,533 / 31,403 (93.38)]
25.5℃ - 26.4℃ 25.5℃ - 26.4℃ = 5,483
[5,483 (1.43% / 1.49%)] [349,016 / 24,368 (94.87)]
26.5℃ - 27.4℃ 26.5℃ - 27.4℃ = 4,396
[4,396 (1.15% / 1.19%)] [353,412 / 18,885 (96.06)]
27.5℃ - 28.4℃ 27.5℃ - 28.4℃ = 3,660
[3,660 (0.96% / 0.99%)] [357,072 / 14,489 (97.06)]
28.5℃ - 29.4℃ 28.5℃ - 29.4℃ = 3,008
[3,008 (0.79% / 0.82%)] [360,080 / 10,829 (97.87)]
29.5℃ - 30.4℃ 29.5℃ - 30.4℃ = 2,382
[2,382 (0.62% / 0.65%)] [362,462 / 7,821 (98.52)]
30.5℃ - 31.4℃ 30.5℃ - 31.4℃ = 1,924
[1,924 (0.50% / 0.52%)] [364,386 / 5,439 (99.04)]
31.5℃ - 32.4℃ 31.5℃ - 32.4℃ = 1,477
[1,477 (0.39% / 0.40%)] [365,863 / 3,515 (99.45)]
32.5℃ - 33.4℃ 32.5℃ - 33.4℃ = 979
[979 (0.26% / 0.27%)] [366,842 / 2,038 (99.71)]
33.5℃ - 34.4℃ 33.5℃ - 34.4℃ = 595
[595 (0.16% / 0.16%)] [367,437 / 1,059 (99.87)]
34.5℃ - 35.4℃ 34.5℃ - 35.4℃ = 330
[330 (0.09% / 0.09%)] [367,767 / 464 (99.96)]
35.5℃ - 36.4℃ 35.5℃ - 36.4℃ = 112
[112 (0.03% / 0.03%)] [367,879 / 134 (99.99)]
36.5℃ - 37.4℃ 36.5℃ - 37.4℃ = 19
[19 (0.00% / 0.01%)] [367,898 / 22 (100.00)]
37.5℃ - 38.4℃ 37.5℃ - 38.4℃ = 3
[3 (0.00% / 0.00%)] [367,901 / 3 (100.00)]

欠測回数 (15,235 / 3.98%)

日照時間

0.0h 0.0h = 273,263
[273,263 (71.32% / 74.67%)] [273,263 / 365,939 (74.67)]
0.1h 0.1h = 6,312
[6,312 (1.65% / 1.72%)] [279,575 / 92,676 (76.40)]
0.2h 0.2h = 4,789
[4,789 (1.25% / 1.31%)] [284,364 / 86,364 (77.71)]
0.3h 0.3h = 4,497
[4,497 (1.17% / 1.23%)] [288,861 / 81,575 (78.94)]
0.4h 0.4h = 4,347
[4,347 (1.13% / 1.19%)] [293,208 / 77,078 (80.12)]
0.5h 0.5h = 4,083
[4,083 (1.07% / 1.12%)] [297,291 / 72,731 (81.24)]
0.6h 0.6h = 4,212
[4,212 (1.10% / 1.15%)] [301,503 / 68,648 (82.39)]
0.7h 0.7h = 4,879
[4,879 (1.27% / 1.33%)] [306,382 / 64,436 (83.72)]
0.8h 0.8h = 5,955
[5,955 (1.55% / 1.63%)] [312,337 / 59,557 (85.35)]
0.9h 0.9h = 7,556
[7,556 (1.97% / 2.06%)] [319,893 / 53,602 (87.42)]
1.0h 1.0h = 46,046
[46,046 (12.02% / 12.58%)] [365,939 / 46,046 (100.00)]

欠測回数 (17,197 / 4.49%)