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 490
観測回数 357,562
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 〜 2017年03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 = 332,474
[332,474 (92.98% / 93.54%)] [332,474 / 355,420 (93.54%)]
0.5mm - 1.4mm 0.5mm - 1.4mm = 13,374
[13,374 (3.74% / 3.76%)] [345,848 / 22,946 (97.31%)]
1.5mm - 2.4mm 1.5mm - 2.4mm = 4,280
[4,280 (1.20% / 1.20%)] [350,128 / 9,572 (98.51%)]
2.5mm - 3.4mm 2.5mm - 3.4mm = 2,002
[2,002 (0.56% / 0.56%)] [352,130 / 5,292 (99.07%)]
3.5mm - 4.4mm 3.5mm - 4.4mm = 1,079
[1,079 (0.30% / 0.30%)] [353,209 / 3,290 (99.38%)]
4.5mm - 5.4mm 4.5mm - 5.4mm = 625
[625 (0.17% / 0.18%)] [353,834 / 2,211 (99.55%)]
5.5mm - 6.4mm 5.5mm - 6.4mm = 417
[417 (0.12% / 0.12%)] [354,251 / 1,586 (99.67%)]
6.5mm - 7.4mm 6.5mm - 7.4mm = 275
[275 (0.08% / 0.08%)] [354,526 / 1,169 (99.75%)]
7.5mm - 8.4mm 7.5mm - 8.4mm = 185
[185 (0.05% / 0.05%)] [354,711 / 894 (99.80%)]
8.5mm - 9.4mm 8.5mm - 9.4mm = 137
[137 (0.04% / 0.04%)] [354,848 / 709 (99.84%)]
9.5mm - 10.4mm 9.5mm - 10.4mm = 112
[112 (0.03% / 0.03%)] [354,960 / 572 (99.87%)]
10.5mm - 11.4mm 10.5mm - 11.4mm = 71
[71 (0.02% / 0.02%)] [355,031 / 460 (99.89%)]
11.5mm - 12.4mm 11.5mm - 12.4mm = 50
[50 (0.01% / 0.01%)] [355,081 / 389 (99.90%)]
12.5mm - 13.4mm 12.5mm - 13.4mm = 52
[52 (0.01% / 0.01%)] [355,133 / 339 (99.92%)]
13.5mm - 14.4mm 13.5mm - 14.4mm = 39
[39 (0.01% / 0.01%)] [355,172 / 287 (99.93%)]
14.5mm - 15.4mm 14.5mm - 15.4mm = 34
[34 (0.01% / 0.01%)] [355,206 / 248 (99.94%)]
15.5mm - 16.4mm 15.5mm - 16.4mm = 27
[27 (0.01% / 0.01%)] [355,233 / 214 (99.95%)]
16.5mm - 17.4mm 16.5mm - 17.4mm = 25
[25 (0.01% / 0.01%)] [355,258 / 187 (99.95%)]
17.5mm - 18.4mm 17.5mm - 18.4mm = 19
[19 (0.01% / 0.01%)] [355,277 / 162 (99.96%)]
18.5mm - 19.4mm 18.5mm - 19.4mm = 13
[13 (0.00% / 0.00%)] [355,290 / 143 (99.96%)]
19.5mm - 20.4mm 19.5mm - 20.4mm = 15
[15 (0.00% / 0.00%)] [355,305 / 130 (99.97%)]
20.5mm - 21.4mm 20.5mm - 21.4mm = 9
[9 (0.00% / 0.00%)] [355,314 / 115 (99.97%)]
21.5mm - 22.4mm 21.5mm - 22.4mm = 15
[15 (0.00% / 0.00%)] [355,329 / 106 (99.97%)]
22.5mm - 23.4mm 22.5mm - 23.4mm = 9
[9 (0.00% / 0.00%)] [355,338 / 91 (99.98%)]
23.5mm - 24.4mm 23.5mm - 24.4mm = 9
[9 (0.00% / 0.00%)] [355,347 / 82 (99.98%)]
24.5mm - 25.4mm 24.5mm - 25.4mm = 10
[10 (0.00% / 0.00%)] [355,357 / 73 (99.98%)]
25.5mm - 26.4mm 25.5mm - 26.4mm = 9
[9 (0.00% / 0.00%)] [355,366 / 63 (99.98%)]
26.5mm - 27.4mm 26.5mm - 27.4mm = 7
[7 (0.00% / 0.00%)] [355,373 / 54 (99.99%)]
27.5mm - 28.4mm 27.5mm - 28.4mm = 2
[2 (0.00% / 0.00%)] [355,375 / 47 (99.99%)]
28.5mm - 29.4mm 28.5mm - 29.4mm = 6
[6 (0.00% / 0.00%)] [355,381 / 45 (99.99%)]
29.5mm - 30.4mm 29.5mm - 30.4mm = 4
[4 (0.00% / 0.00%)] [355,385 / 39 (99.99%)]
30.5mm - 31.4mm 30.5mm - 31.4mm = 2
[2 (0.00% / 0.00%)] [355,387 / 35 (99.99%)]
31.5mm - 32.4mm 31.5mm - 32.4mm = 4
[4 (0.00% / 0.00%)] [355,391 / 33 (99.99%)]
32.5mm - 33.4mm 32.5mm - 33.4mm = 1
[1 (0.00% / 0.00%)] [355,392 / 29 (99.99%)]
33.5mm - 34.4mm 33.5mm - 34.4mm = 1
[1 (0.00% / 0.00%)] [355,393 / 28 (99.99%)]
34.5mm - 35.4mm 34.5mm - 35.4mm = 1
[1 (0.00% / 0.00%)] [355,394 / 27 (99.99%)]
35.5mm - 36.4mm 35.5mm - 36.4mm = 2
[2 (0.00% / 0.00%)] [355,396 / 26 (99.99%)]
36.5mm - 37.4mm 36.5mm - 37.4mm = 1
[1 (0.00% / 0.00%)] [355,397 / 24 (99.99%)]
38.5mm - 39.4mm 38.5mm - 39.4mm = 3
[3 (0.00% / 0.00%)] [355,400 / 23 (99.99%)]
39.5mm - 40.4mm 39.5mm - 40.4mm = 1
[1 (0.00% / 0.00%)] [355,401 / 20 (99.99%)]
40.5mm - 41.4mm 40.5mm - 41.4mm = 5
[5 (0.00% / 0.00%)] [355,406 / 19 (100.00%)]
41.5mm - 42.4mm 41.5mm - 42.4mm = 1
[1 (0.00% / 0.00%)] [355,407 / 14 (100.00%)]
43.5mm - 44.4mm 43.5mm - 44.4mm = 2
[2 (0.00% / 0.00%)] [355,409 / 13 (100.00%)]
44.5mm - 45.4mm 44.5mm - 45.4mm = 2
[2 (0.00% / 0.00%)] [355,411 / 11 (100.00%)]
45.5mm - 46.4mm 45.5mm - 46.4mm = 1
[1 (0.00% / 0.00%)] [355,412 / 9 (100.00%)]
46.5mm - 47.4mm 46.5mm - 47.4mm = 2
[2 (0.00% / 0.00%)] [355,414 / 8 (100.00%)]
47.5mm - 48.4mm 47.5mm - 48.4mm = 1
[1 (0.00% / 0.00%)] [355,415 / 6 (100.00%)]
48.5mm - 49.4mm 48.5mm - 49.4mm = 1
[1 (0.00% / 0.00%)] [355,416 / 5 (100.00%)]
50.5mm - 51.4mm 50.5mm - 51.4mm = 1
[1 (0.00% / 0.00%)] [355,417 / 4 (100.00%)]
53.5mm - 54.4mm 53.5mm - 54.4mm = 1
[1 (0.00% / 0.00%)] [355,418 / 3 (100.00%)]
68.5mm - 69.4mm 68.5mm - 69.4mm = 2
[2 (0.00% / 0.00%)] [355,420 / 2 (100.00%)]

欠測回数 (2,142 / 0.60%)

風向

静穏 静穏 = 127,184
[127,184 (35.57% / 37.03%)] [0 / 0 (NA)]
北北東 北北東 = 3,049
[3,049 (0.85% / 0.89%)] [0 / 0 (NA)]
北東 北東 = 1,816
[1,816 (0.51% / 0.53%)] [0 / 0 (NA)]
東北東 東北東 = 1,322
[1,322 (0.37% / 0.38%)] [0 / 0 (NA)]
東 = 1,537
[1,537 (0.43% / 0.45%)] [0 / 0 (NA)]
東南東 東南東 = 2,559
[2,559 (0.72% / 0.75%)] [0 / 0 (NA)]
南東 南東 = 5,348
[5,348 (1.50% / 1.56%)] [0 / 0 (NA)]
南南東 南南東 = 25,194
[25,194 (7.05% / 7.34%)] [0 / 0 (NA)]
南 = 32,329
[32,329 (9.04% / 9.41%)] [0 / 0 (NA)]
南南西 南南西 = 7,923
[7,923 (2.22% / 2.31%)] [0 / 0 (NA)]
南西 南西 = 3,366
[3,366 (0.94% / 0.98%)] [0 / 0 (NA)]
西南西 西南西 = 2,670
[2,670 (0.75% / 0.78%)] [0 / 0 (NA)]
西 西 = 3,309
[3,309 (0.93% / 0.96%)] [0 / 0 (NA)]
西北西 西北西 = 7,719
[7,719 (2.16% / 2.25%)] [0 / 0 (NA)]
北西 北西 = 44,255
[44,255 (12.38% / 12.89%)] [0 / 0 (NA)]
北北西 北北西 = 66,025
[66,025 (18.47% / 19.22%)] [0 / 0 (NA)]
北 = 7,836
[7,836 (2.19% / 2.28%)] [0 / 0 (NA)]

欠測回数 (14,121 / 3.95%)

風速

0.0m/s - 0.4m/s 0.0m/s - 0.4m/s = 135,140
[135,140 (37.79% / 39.31%)] [135,140 / 343,811 (39.31%)]
0.5m/s - 1.4m/s 0.5m/s - 1.4m/s = 110,962
[110,962 (31.03% / 32.27%)] [246,102 / 208,671 (71.58%)]
1.5m/s - 2.4m/s 1.5m/s - 2.4m/s = 52,356
[52,356 (14.64% / 15.23%)] [298,458 / 97,709 (86.81%)]
2.5m/s - 3.4m/s 2.5m/s - 3.4m/s = 29,037
[29,037 (8.12% / 8.45%)] [327,495 / 45,353 (95.25%)]
3.5m/s - 4.4m/s 3.5m/s - 4.4m/s = 12,438
[12,438 (3.48% / 3.62%)] [339,933 / 16,316 (98.87%)]
4.5m/s - 5.4m/s 4.5m/s - 5.4m/s = 3,072
[3,072 (0.86% / 0.89%)] [343,005 / 3,878 (99.77%)]
5.5m/s - 6.4m/s 5.5m/s - 6.4m/s = 630
[630 (0.18% / 0.18%)] [343,635 / 806 (99.95%)]
6.5m/s - 7.4m/s 6.5m/s - 7.4m/s = 133
[133 (0.04% / 0.04%)] [343,768 / 176 (99.99%)]
7.5m/s - 8.4m/s 7.5m/s - 8.4m/s = 32
[32 (0.01% / 0.01%)] [343,800 / 43 (100.00%)]
8.5m/s - 9.4m/s 8.5m/s - 9.4m/s = 7
[7 (0.00% / 0.00%)] [343,807 / 11 (100.00%)]
9.5m/s - 10.4m/s 9.5m/s - 10.4m/s = 4
[4 (0.00% / 0.00%)] [343,811 / 4 (100.00%)]

欠測回数 (13,751 / 3.85%)

気温

-9.5℃ - -8.6℃ -9.5℃ - -8.6℃ = 4
[4 (0.00% / 0.00%)] [4 / 343,809 (0.00%)]
-8.5℃ - -7.6℃ -8.5℃ - -7.6℃ = 43
[43 (0.01% / 0.01%)] [47 / 343,805 (0.01%)]
-7.5℃ - -6.6℃ -7.5℃ - -6.6℃ = 190
[190 (0.05% / 0.06%)] [237 / 343,762 (0.07%)]
-6.5℃ - -5.6℃ -6.5℃ - -5.6℃ = 455
[455 (0.13% / 0.13%)] [692 / 343,572 (0.20%)]
-5.5℃ - -4.6℃ -5.5℃ - -4.6℃ = 1,021
[1,021 (0.29% / 0.30%)] [1,713 / 343,117 (0.50%)]
-4.5℃ - -3.6℃ -4.5℃ - -3.6℃ = 2,071
[2,071 (0.58% / 0.60%)] [3,784 / 342,096 (1.10%)]
-3.5℃ - -2.6℃ -3.5℃ - -2.6℃ = 4,015
[4,015 (1.12% / 1.17%)] [7,799 / 340,025 (2.27%)]
-2.5℃ - -1.6℃ -2.5℃ - -1.6℃ = 6,568
[6,568 (1.84% / 1.91%)] [14,367 / 336,010 (4.18%)]
-1.5℃ - -0.6℃ -1.5℃ - -0.6℃ = 9,876
[9,876 (2.76% / 2.87%)] [24,243 / 329,442 (7.05%)]
-0.5℃ - 0.4℃ -0.5℃ - 0.4℃ = 21,856
[21,856 (6.11% / 6.36%)] [46,099 / 319,566 (13.41%)]
0.5℃ - 1.4℃ 0.5℃ - 1.4℃ = 11,168
[11,168 (3.12% / 3.25%)] [57,267 / 297,710 (16.66%)]
1.5℃ - 2.4℃ 1.5℃ - 2.4℃ = 10,832
[10,832 (3.03% / 3.15%)] [68,099 / 286,542 (19.81%)]
2.5℃ - 3.4℃ 2.5℃ - 3.4℃ = 10,381
[10,381 (2.90% / 3.02%)] [78,480 / 275,710 (22.83%)]
3.5℃ - 4.4℃ 3.5℃ - 4.4℃ = 10,839
[10,839 (3.03% / 3.15%)] [89,319 / 265,329 (25.98%)]
4.5℃ - 5.4℃ 4.5℃ - 5.4℃ = 10,566
[10,566 (2.96% / 3.07%)] [99,885 / 254,490 (29.05%)]
5.5℃ - 6.4℃ 5.5℃ - 6.4℃ = 10,659
[10,659 (2.98% / 3.10%)] [110,544 / 243,924 (32.15%)]
6.5℃ - 7.4℃ 6.5℃ - 7.4℃ = 10,693
[10,693 (2.99% / 3.11%)] [121,237 / 233,265 (35.26%)]
7.5℃ - 8.4℃ 7.5℃ - 8.4℃ = 10,327
[10,327 (2.89% / 3.00%)] [131,564 / 222,572 (38.27%)]
8.5℃ - 9.4℃ 8.5℃ - 9.4℃ = 10,310
[10,310 (2.88% / 3.00%)] [141,874 / 212,245 (41.27%)]
9.5℃ - 10.4℃ 9.5℃ - 10.4℃ = 10,408
[10,408 (2.91% / 3.03%)] [152,282 / 201,935 (44.29%)]
10.5℃ - 11.4℃ 10.5℃ - 11.4℃ = 10,684
[10,684 (2.99% / 3.11%)] [162,966 / 191,527 (47.40%)]
11.5℃ - 12.4℃ 11.5℃ - 12.4℃ = 10,616
[10,616 (2.97% / 3.09%)] [173,582 / 180,843 (50.49%)]
12.5℃ - 13.4℃ 12.5℃ - 13.4℃ = 10,695
[10,695 (2.99% / 3.11%)] [184,277 / 170,227 (53.60%)]
13.5℃ - 14.4℃ 13.5℃ - 14.4℃ = 10,953
[10,953 (3.06% / 3.19%)] [195,230 / 159,532 (56.78%)]
14.5℃ - 15.4℃ 14.5℃ - 15.4℃ = 10,889
[10,889 (3.05% / 3.17%)] [206,119 / 148,579 (59.95%)]
15.5℃ - 16.4℃ 15.5℃ - 16.4℃ = 11,828
[11,828 (3.31% / 3.44%)] [217,947 / 137,690 (63.39%)]
16.5℃ - 17.4℃ 16.5℃ - 17.4℃ = 11,983
[11,983 (3.35% / 3.49%)] [229,930 / 125,862 (66.88%)]
17.5℃ - 18.4℃ 17.5℃ - 18.4℃ = 12,932
[12,932 (3.62% / 3.76%)] [242,862 / 113,879 (70.64%)]
18.5℃ - 19.4℃ 18.5℃ - 19.4℃ = 12,944
[12,944 (3.62% / 3.76%)] [255,806 / 100,947 (74.40%)]
19.5℃ - 20.4℃ 19.5℃ - 20.4℃ = 13,271
[13,271 (3.71% / 3.86%)] [269,077 / 88,003 (78.26%)]
20.5℃ - 21.4℃ 20.5℃ - 21.4℃ = 13,110
[13,110 (3.67% / 3.81%)] [282,187 / 74,732 (82.08%)]
21.5℃ - 22.4℃ 21.5℃ - 22.4℃ = 13,244
[13,244 (3.70% / 3.85%)] [295,431 / 61,622 (85.93%)]
22.5℃ - 23.4℃ 22.5℃ - 23.4℃ = 11,395
[11,395 (3.19% / 3.31%)] [306,826 / 48,378 (89.24%)]
23.5℃ - 24.4℃ 23.5℃ - 24.4℃ = 8,537
[8,537 (2.39% / 2.48%)] [315,363 / 36,983 (91.73%)]
24.5℃ - 25.4℃ 24.5℃ - 25.4℃ = 6,249
[6,249 (1.75% / 1.82%)] [321,612 / 28,446 (93.54%)]
25.5℃ - 26.4℃ 25.5℃ - 26.4℃ = 4,952
[4,952 (1.38% / 1.44%)] [326,564 / 22,197 (94.98%)]
26.5℃ - 27.4℃ 26.5℃ - 27.4℃ = 4,033
[4,033 (1.13% / 1.17%)] [330,597 / 17,245 (96.16%)]
27.5℃ - 28.4℃ 27.5℃ - 28.4℃ = 3,341
[3,341 (0.93% / 0.97%)] [333,938 / 13,212 (97.13%)]
28.5℃ - 29.4℃ 28.5℃ - 29.4℃ = 2,740
[2,740 (0.77% / 0.80%)] [336,678 / 9,871 (97.93%)]
29.5℃ - 30.4℃ 29.5℃ - 30.4℃ = 2,214
[2,214 (0.62% / 0.64%)] [338,892 / 7,131 (98.57%)]
30.5℃ - 31.4℃ 30.5℃ - 31.4℃ = 1,768
[1,768 (0.49% / 0.51%)] [340,660 / 4,917 (99.08%)]
31.5℃ - 32.4℃ 31.5℃ - 32.4℃ = 1,347
[1,347 (0.38% / 0.39%)] [342,007 / 3,149 (99.48%)]
32.5℃ - 33.4℃ 32.5℃ - 33.4℃ = 884
[884 (0.25% / 0.26%)] [342,891 / 1,802 (99.73%)]
33.5℃ - 34.4℃ 33.5℃ - 34.4℃ = 534
[534 (0.15% / 0.16%)] [343,425 / 918 (99.89%)]
34.5℃ - 35.4℃ 34.5℃ - 35.4℃ = 273
[273 (0.08% / 0.08%)] [343,698 / 384 (99.97%)]
35.5℃ - 36.4℃ 35.5℃ - 36.4℃ = 94
[94 (0.03% / 0.03%)] [343,792 / 111 (100.00%)]
36.5℃ - 37.4℃ 36.5℃ - 37.4℃ = 14
[14 (0.00% / 0.00%)] [343,806 / 17 (100.00%)]
37.5℃ - 38.4℃ 37.5℃ - 38.4℃ = 3
[3 (0.00% / 0.00%)] [343,809 / 3 (100.00%)]

欠測回数 (13,753 / 3.85%)

日照時間

0.0h 0.0h = 255,750
[255,750 (71.53% / 74.82%)] [255,750 / 341,840 (74.82%)]
0.1h 0.1h = 5,838
[5,838 (1.63% / 1.71%)] [261,588 / 86,090 (76.52%)]
0.2h 0.2h = 4,465
[4,465 (1.25% / 1.31%)] [266,053 / 80,252 (77.83%)]
0.3h 0.3h = 4,136
[4,136 (1.16% / 1.21%)] [270,189 / 75,787 (79.04%)]
0.4h 0.4h = 4,014
[4,014 (1.12% / 1.17%)] [274,203 / 71,651 (80.21%)]
0.5h 0.5h = 3,784
[3,784 (1.06% / 1.11%)] [277,987 / 67,637 (81.32%)]
0.6h 0.6h = 3,939
[3,939 (1.10% / 1.15%)] [281,926 / 63,853 (82.47%)]
0.7h 0.7h = 4,563
[4,563 (1.28% / 1.33%)] [286,489 / 59,914 (83.81%)]
0.8h 0.8h = 5,487
[5,487 (1.53% / 1.61%)] [291,976 / 55,351 (85.41%)]
0.9h 0.9h = 7,028
[7,028 (1.97% / 2.06%)] [299,004 / 49,864 (87.47%)]
1.0h 1.0h = 42,836
[42,836 (11.98% / 12.53%)] [341,840 / 42,836 (100.00%)]

欠測回数 (15,722 / 4.40%)