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 471
観測回数 343,690
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) 36.242N 138.705E 366m 0.0m
1977年12月20日 〜 1986年08月20日 西野牧 (ニシノマキ) 36.242N 138.705E 366m 6.5m
1986年08月21日 〜 1998年03月30日 西野牧 (ニシノマキ) 36.242N 138.705E 366m 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 〜 2015年08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 = 319,624
[319,624 (93.00% / 93.58%)] [319,624 / 341,548 (93.58%)]
0.5mm - 1.4mm 0.5mm - 1.4mm = 12,730
[12,730 (3.70% / 3.73%)] [332,354 / 21,924 (97.31%)]
1.5mm - 2.4mm 1.5mm - 2.4mm = 4,099
[4,099 (1.19% / 1.20%)] [336,453 / 9,194 (98.51%)]
2.5mm - 3.4mm 2.5mm - 3.4mm = 1,915
[1,915 (0.56% / 0.56%)] [338,368 / 5,095 (99.07%)]
3.5mm - 4.4mm 3.5mm - 4.4mm = 1,044
[1,044 (0.30% / 0.31%)] [339,412 / 3,180 (99.37%)]
4.5mm - 5.4mm 4.5mm - 5.4mm = 604
[604 (0.18% / 0.18%)] [340,016 / 2,136 (99.55%)]
5.5mm - 6.4mm 5.5mm - 6.4mm = 406
[406 (0.12% / 0.12%)] [340,422 / 1,532 (99.67%)]
6.5mm - 7.4mm 6.5mm - 7.4mm = 260
[260 (0.08% / 0.08%)] [340,682 / 1,126 (99.75%)]
7.5mm - 8.4mm 7.5mm - 8.4mm = 178
[178 (0.05% / 0.05%)] [340,860 / 866 (99.80%)]
8.5mm - 9.4mm 8.5mm - 9.4mm = 132
[132 (0.04% / 0.04%)] [340,992 / 688 (99.84%)]
9.5mm - 10.4mm 9.5mm - 10.4mm = 111
[111 (0.03% / 0.03%)] [341,103 / 556 (99.87%)]
10.5mm - 11.4mm 10.5mm - 11.4mm = 67
[67 (0.02% / 0.02%)] [341,170 / 445 (99.89%)]
11.5mm - 12.4mm 11.5mm - 12.4mm = 50
[50 (0.01% / 0.01%)] [341,220 / 378 (99.90%)]
12.5mm - 13.4mm 12.5mm - 13.4mm = 52
[52 (0.02% / 0.02%)] [341,272 / 328 (99.92%)]
13.5mm - 14.4mm 13.5mm - 14.4mm = 37
[37 (0.01% / 0.01%)] [341,309 / 276 (99.93%)]
14.5mm - 15.4mm 14.5mm - 15.4mm = 33
[33 (0.01% / 0.01%)] [341,342 / 239 (99.94%)]
15.5mm - 16.4mm 15.5mm - 16.4mm = 27
[27 (0.01% / 0.01%)] [341,369 / 206 (99.95%)]
16.5mm - 17.4mm 16.5mm - 17.4mm = 24
[24 (0.01% / 0.01%)] [341,393 / 179 (99.95%)]
17.5mm - 18.4mm 17.5mm - 18.4mm = 17
[17 (0.00% / 0.00%)] [341,410 / 155 (99.96%)]
18.5mm - 19.4mm 18.5mm - 19.4mm = 12
[12 (0.00% / 0.00%)] [341,422 / 138 (99.96%)]
19.5mm - 20.4mm 19.5mm - 20.4mm = 15
[15 (0.00% / 0.00%)] [341,437 / 126 (99.97%)]
20.5mm - 21.4mm 20.5mm - 21.4mm = 9
[9 (0.00% / 0.00%)] [341,446 / 111 (99.97%)]
21.5mm - 22.4mm 21.5mm - 22.4mm = 14
[14 (0.00% / 0.00%)] [341,460 / 102 (99.97%)]
22.5mm - 23.4mm 22.5mm - 23.4mm = 9
[9 (0.00% / 0.00%)] [341,469 / 88 (99.98%)]
23.5mm - 24.4mm 23.5mm - 24.4mm = 9
[9 (0.00% / 0.00%)] [341,478 / 79 (99.98%)]
24.5mm - 25.4mm 24.5mm - 25.4mm = 9
[9 (0.00% / 0.00%)] [341,487 / 70 (99.98%)]
25.5mm - 26.4mm 25.5mm - 26.4mm = 9
[9 (0.00% / 0.00%)] [341,496 / 61 (99.98%)]
26.5mm - 27.4mm 26.5mm - 27.4mm = 7
[7 (0.00% / 0.00%)] [341,503 / 52 (99.99%)]
27.5mm - 28.4mm 27.5mm - 28.4mm = 2
[2 (0.00% / 0.00%)] [341,505 / 45 (99.99%)]
28.5mm - 29.4mm 28.5mm - 29.4mm = 5
[5 (0.00% / 0.00%)] [341,510 / 43 (99.99%)]
29.5mm - 30.4mm 29.5mm - 30.4mm = 4
[4 (0.00% / 0.00%)] [341,514 / 38 (99.99%)]
30.5mm - 31.4mm 30.5mm - 31.4mm = 2
[2 (0.00% / 0.00%)] [341,516 / 34 (99.99%)]
31.5mm - 32.4mm 31.5mm - 32.4mm = 3
[3 (0.00% / 0.00%)] [341,519 / 32 (99.99%)]
32.5mm - 33.4mm 32.5mm - 33.4mm = 1
[1 (0.00% / 0.00%)] [341,520 / 29 (99.99%)]
33.5mm - 34.4mm 33.5mm - 34.4mm = 1
[1 (0.00% / 0.00%)] [341,521 / 28 (99.99%)]
34.5mm - 35.4mm 34.5mm - 35.4mm = 1
[1 (0.00% / 0.00%)] [341,522 / 27 (99.99%)]
35.5mm - 36.4mm 35.5mm - 36.4mm = 2
[2 (0.00% / 0.00%)] [341,524 / 26 (99.99%)]
36.5mm - 37.4mm 36.5mm - 37.4mm = 1
[1 (0.00% / 0.00%)] [341,525 / 24 (99.99%)]
38.5mm - 39.4mm 38.5mm - 39.4mm = 3
[3 (0.00% / 0.00%)] [341,528 / 23 (99.99%)]
39.5mm - 40.4mm 39.5mm - 40.4mm = 1
[1 (0.00% / 0.00%)] [341,529 / 20 (99.99%)]
40.5mm - 41.4mm 40.5mm - 41.4mm = 5
[5 (0.00% / 0.00%)] [341,534 / 19 (100.00%)]
41.5mm - 42.4mm 41.5mm - 42.4mm = 1
[1 (0.00% / 0.00%)] [341,535 / 14 (100.00%)]
43.5mm - 44.4mm 43.5mm - 44.4mm = 2
[2 (0.00% / 0.00%)] [341,537 / 13 (100.00%)]
44.5mm - 45.4mm 44.5mm - 45.4mm = 2
[2 (0.00% / 0.00%)] [341,539 / 11 (100.00%)]
45.5mm - 46.4mm 45.5mm - 46.4mm = 1
[1 (0.00% / 0.00%)] [341,540 / 9 (100.00%)]
46.5mm - 47.4mm 46.5mm - 47.4mm = 2
[2 (0.00% / 0.00%)] [341,542 / 8 (100.00%)]
47.5mm - 48.4mm 47.5mm - 48.4mm = 1
[1 (0.00% / 0.00%)] [341,543 / 6 (100.00%)]
48.5mm - 49.4mm 48.5mm - 49.4mm = 1
[1 (0.00% / 0.00%)] [341,544 / 5 (100.00%)]
50.5mm - 51.4mm 50.5mm - 51.4mm = 1
[1 (0.00% / 0.00%)] [341,545 / 4 (100.00%)]
53.5mm - 54.4mm 53.5mm - 54.4mm = 1
[1 (0.00% / 0.00%)] [341,546 / 3 (100.00%)]
68.5mm - 69.4mm 68.5mm - 69.4mm = 2
[2 (0.00% / 0.00%)] [341,548 / 2 (100.00%)]

欠測回数 (2,142 / 0.62%)

風向

静穏 静穏 = 122,762
[122,762 (35.72% / 37.24%)] [0 / 0 (NA)]
北北東 北北東 = 2,943
[2,943 (0.86% / 0.89%)] [0 / 0 (NA)]
北東 北東 = 1,730
[1,730 (0.50% / 0.52%)] [0 / 0 (NA)]
東北東 東北東 = 1,271
[1,271 (0.37% / 0.39%)] [0 / 0 (NA)]
東 = 1,479
[1,479 (0.43% / 0.45%)] [0 / 0 (NA)]
東南東 東南東 = 2,447
[2,447 (0.71% / 0.74%)] [0 / 0 (NA)]
南東 南東 = 5,112
[5,112 (1.49% / 1.55%)] [0 / 0 (NA)]
南南東 南南東 = 24,021
[24,021 (6.99% / 7.29%)] [0 / 0 (NA)]
南 = 31,183
[31,183 (9.07% / 9.46%)] [0 / 0 (NA)]
南南西 南南西 = 7,641
[7,641 (2.22% / 2.32%)] [0 / 0 (NA)]
南西 南西 = 3,225
[3,225 (0.94% / 0.98%)] [0 / 0 (NA)]
西南西 西南西 = 2,559
[2,559 (0.74% / 0.78%)] [0 / 0 (NA)]
西 西 = 3,137
[3,137 (0.91% / 0.95%)] [0 / 0 (NA)]
西北西 西北西 = 7,266
[7,266 (2.11% / 2.20%)] [0 / 0 (NA)]
北西 北西 = 42,061
[42,061 (12.24% / 12.76%)] [0 / 0 (NA)]
北北西 北北西 = 63,272
[63,272 (18.41% / 19.19%)] [0 / 0 (NA)]
北 = 7,548
[7,548 (2.20% / 2.29%)] [0 / 0 (NA)]

欠測回数 (14,033 / 4.08%)

風速

0.0m/s - 0.4m/s 0.0m/s - 0.4m/s = 129,439
[129,439 (37.66% / 39.22%)] [129,439 / 330,027 (39.22%)]
0.5m/s - 1.4m/s 0.5m/s - 1.4m/s = 107,110
[107,110 (31.16% / 32.45%)] [236,549 / 200,588 (71.68%)]
1.5m/s - 2.4m/s 1.5m/s - 2.4m/s = 50,132
[50,132 (14.59% / 15.19%)] [286,681 / 93,478 (86.87%)]
2.5m/s - 3.4m/s 2.5m/s - 3.4m/s = 27,804
[27,804 (8.09% / 8.42%)] [314,485 / 43,346 (95.29%)]
3.5m/s - 4.4m/s 3.5m/s - 4.4m/s = 11,869
[11,869 (3.45% / 3.60%)] [326,354 / 15,542 (98.89%)]
4.5m/s - 5.4m/s 4.5m/s - 5.4m/s = 2,911
[2,911 (0.85% / 0.88%)] [329,265 / 3,673 (99.77%)]
5.5m/s - 6.4m/s 5.5m/s - 6.4m/s = 593
[593 (0.17% / 0.18%)] [329,858 / 762 (99.95%)]
6.5m/s - 7.4m/s 6.5m/s - 7.4m/s = 128
[128 (0.04% / 0.04%)] [329,986 / 169 (99.99%)]
7.5m/s - 8.4m/s 7.5m/s - 8.4m/s = 32
[32 (0.01% / 0.01%)] [330,018 / 41 (100.00%)]
8.5m/s - 9.4m/s 8.5m/s - 9.4m/s = 6
[6 (0.00% / 0.00%)] [330,024 / 9 (100.00%)]
9.5m/s - 10.4m/s 9.5m/s - 10.4m/s = 3
[3 (0.00% / 0.00%)] [330,027 / 3 (100.00%)]

欠測回数 (13,663 / 3.98%)

気温

-9.5℃ - -8.6℃ -9.5℃ - -8.6℃ = 4
[4 (0.00% / 0.00%)] [4 / 329,938 (0.00%)]
-8.5℃ - -7.6℃ -8.5℃ - -7.6℃ = 43
[43 (0.01% / 0.01%)] [47 / 329,934 (0.01%)]
-7.5℃ - -6.6℃ -7.5℃ - -6.6℃ = 190
[190 (0.06% / 0.06%)] [237 / 329,891 (0.07%)]
-6.5℃ - -5.6℃ -6.5℃ - -5.6℃ = 449
[449 (0.13% / 0.14%)] [686 / 329,701 (0.21%)]
-5.5℃ - -4.6℃ -5.5℃ - -4.6℃ = 1,011
[1,011 (0.29% / 0.31%)] [1,697 / 329,252 (0.51%)]
-4.5℃ - -3.6℃ -4.5℃ - -3.6℃ = 2,011
[2,011 (0.59% / 0.61%)] [3,708 / 328,241 (1.12%)]
-3.5℃ - -2.6℃ -3.5℃ - -2.6℃ = 3,881
[3,881 (1.13% / 1.18%)] [7,589 / 326,230 (2.30%)]
-2.5℃ - -1.6℃ -2.5℃ - -1.6℃ = 6,333
[6,333 (1.84% / 1.92%)] [13,922 / 322,349 (4.22%)]
-1.5℃ - -0.6℃ -1.5℃ - -0.6℃ = 9,434
[9,434 (2.74% / 2.86%)] [23,356 / 316,016 (7.08%)]
-0.5℃ - 0.4℃ -0.5℃ - 0.4℃ = 20,819
[20,819 (6.06% / 6.31%)] [44,175 / 306,582 (13.39%)]
0.5℃ - 1.4℃ 0.5℃ - 1.4℃ = 10,659
[10,659 (3.10% / 3.23%)] [54,834 / 285,763 (16.62%)]
1.5℃ - 2.4℃ 1.5℃ - 2.4℃ = 10,318
[10,318 (3.00% / 3.13%)] [65,152 / 275,104 (19.75%)]
2.5℃ - 3.4℃ 2.5℃ - 3.4℃ = 9,910
[9,910 (2.88% / 3.00%)] [75,062 / 264,786 (22.75%)]
3.5℃ - 4.4℃ 3.5℃ - 4.4℃ = 10,363
[10,363 (3.02% / 3.14%)] [85,425 / 254,876 (25.89%)]
4.5℃ - 5.4℃ 4.5℃ - 5.4℃ = 10,093
[10,093 (2.94% / 3.06%)] [95,518 / 244,513 (28.95%)]
5.5℃ - 6.4℃ 5.5℃ - 6.4℃ = 10,196
[10,196 (2.97% / 3.09%)] [105,714 / 234,420 (32.04%)]
6.5℃ - 7.4℃ 6.5℃ - 7.4℃ = 10,155
[10,155 (2.95% / 3.08%)] [115,869 / 224,224 (35.12%)]
7.5℃ - 8.4℃ 7.5℃ - 8.4℃ = 9,783
[9,783 (2.85% / 2.97%)] [125,652 / 214,069 (38.08%)]
8.5℃ - 9.4℃ 8.5℃ - 9.4℃ = 9,781
[9,781 (2.85% / 2.96%)] [135,433 / 204,286 (41.05%)]
9.5℃ - 10.4℃ 9.5℃ - 10.4℃ = 9,901
[9,901 (2.88% / 3.00%)] [145,334 / 194,505 (44.05%)]
10.5℃ - 11.4℃ 10.5℃ - 11.4℃ = 10,257
[10,257 (2.98% / 3.11%)] [155,591 / 184,604 (47.16%)]
11.5℃ - 12.4℃ 11.5℃ - 12.4℃ = 10,194
[10,194 (2.97% / 3.09%)] [165,785 / 174,347 (50.25%)]
12.5℃ - 13.4℃ 12.5℃ - 13.4℃ = 10,257
[10,257 (2.98% / 3.11%)] [176,042 / 164,153 (53.36%)]
13.5℃ - 14.4℃ 13.5℃ - 14.4℃ = 10,558
[10,558 (3.07% / 3.20%)] [186,600 / 153,896 (56.56%)]
14.5℃ - 15.4℃ 14.5℃ - 15.4℃ = 10,509
[10,509 (3.06% / 3.19%)] [197,109 / 143,338 (59.74%)]
15.5℃ - 16.4℃ 15.5℃ - 16.4℃ = 11,461
[11,461 (3.33% / 3.47%)] [208,570 / 132,829 (63.21%)]
16.5℃ - 17.4℃ 16.5℃ - 17.4℃ = 11,531
[11,531 (3.36% / 3.49%)] [220,101 / 121,368 (66.71%)]
17.5℃ - 18.4℃ 17.5℃ - 18.4℃ = 12,460
[12,460 (3.63% / 3.78%)] [232,561 / 109,837 (70.49%)]
18.5℃ - 19.4℃ 18.5℃ - 19.4℃ = 12,464
[12,464 (3.63% / 3.78%)] [245,025 / 97,377 (74.26%)]
19.5℃ - 20.4℃ 19.5℃ - 20.4℃ = 12,705
[12,705 (3.70% / 3.85%)] [257,730 / 84,913 (78.11%)]
20.5℃ - 21.4℃ 20.5℃ - 21.4℃ = 12,618
[12,618 (3.67% / 3.82%)] [270,348 / 72,208 (81.94%)]
21.5℃ - 22.4℃ 21.5℃ - 22.4℃ = 12,755
[12,755 (3.71% / 3.87%)] [283,103 / 59,590 (85.80%)]
22.5℃ - 23.4℃ 22.5℃ - 23.4℃ = 10,992
[10,992 (3.20% / 3.33%)] [294,095 / 46,835 (89.14%)]
23.5℃ - 24.4℃ 23.5℃ - 24.4℃ = 8,251
[8,251 (2.40% / 2.50%)] [302,346 / 35,843 (91.64%)]
24.5℃ - 25.4℃ 24.5℃ - 25.4℃ = 6,039
[6,039 (1.76% / 1.83%)] [308,385 / 27,592 (93.47%)]
25.5℃ - 26.4℃ 25.5℃ - 26.4℃ = 4,785
[4,785 (1.39% / 1.45%)] [313,170 / 21,553 (94.92%)]
26.5℃ - 27.4℃ 26.5℃ - 27.4℃ = 3,914
[3,914 (1.14% / 1.19%)] [317,084 / 16,768 (96.10%)]
27.5℃ - 28.4℃ 27.5℃ - 28.4℃ = 3,261
[3,261 (0.95% / 0.99%)] [320,345 / 12,854 (97.09%)]
28.5℃ - 29.4℃ 28.5℃ - 29.4℃ = 2,647
[2,647 (0.77% / 0.80%)] [322,992 / 9,593 (97.89%)]
29.5℃ - 30.4℃ 29.5℃ - 30.4℃ = 2,152
[2,152 (0.63% / 0.65%)] [325,144 / 6,946 (98.55%)]
30.5℃ - 31.4℃ 30.5℃ - 31.4℃ = 1,709
[1,709 (0.50% / 0.52%)] [326,853 / 4,794 (99.06%)]
31.5℃ - 32.4℃ 31.5℃ - 32.4℃ = 1,315
[1,315 (0.38% / 0.40%)] [328,168 / 3,085 (99.46%)]
32.5℃ - 33.4℃ 32.5℃ - 33.4℃ = 860
[860 (0.25% / 0.26%)] [329,028 / 1,770 (99.72%)]
33.5℃ - 34.4℃ 33.5℃ - 34.4℃ = 529
[529 (0.15% / 0.16%)] [329,557 / 910 (99.88%)]
34.5℃ - 35.4℃ 34.5℃ - 35.4℃ = 270
[270 (0.08% / 0.08%)] [329,827 / 381 (99.97%)]
35.5℃ - 36.4℃ 35.5℃ - 36.4℃ = 94
[94 (0.03% / 0.03%)] [329,921 / 111 (99.99%)]
36.5℃ - 37.4℃ 36.5℃ - 37.4℃ = 14
[14 (0.00% / 0.00%)] [329,935 / 17 (100.00%)]
37.5℃ - 38.4℃ 37.5℃ - 38.4℃ = 3
[3 (0.00% / 0.00%)] [329,938 / 3 (100.00%)]

欠測回数 (13,752 / 4.00%)

日照時間

0.0h 0.0h = 245,511
[245,511 (71.43% / 74.86%)] [245,511 / 327,971 (74.86%)]
0.1h 0.1h = 5,597
[5,597 (1.63% / 1.71%)] [251,108 / 82,460 (76.56%)]
0.2h 0.2h = 4,276
[4,276 (1.24% / 1.30%)] [255,384 / 76,863 (77.87%)]
0.3h 0.3h = 3,946
[3,946 (1.15% / 1.20%)] [259,330 / 72,587 (79.07%)]
0.4h 0.4h = 3,837
[3,837 (1.12% / 1.17%)] [263,167 / 68,641 (80.24%)]
0.5h 0.5h = 3,646
[3,646 (1.06% / 1.11%)] [266,813 / 64,804 (81.35%)]
0.6h 0.6h = 3,791
[3,791 (1.10% / 1.16%)] [270,604 / 61,158 (82.51%)]
0.7h 0.7h = 4,393
[4,393 (1.28% / 1.34%)] [274,997 / 57,367 (83.85%)]
0.8h 0.8h = 5,277
[5,277 (1.54% / 1.61%)] [280,274 / 52,974 (85.46%)]
0.9h 0.9h = 6,724
[6,724 (1.96% / 2.05%)] [286,998 / 47,697 (87.51%)]
1.0h 1.0h = 40,973
[40,973 (11.92% / 12.49%)] [327,971 / 40,973 (100.00%)]

欠測回数 (15,719 / 4.57%)