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 483
観測回数 352,474
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 〜 2016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 = 327,695
[327,695 (92.97% / 93.54%)] [327,695 / 350,332 (93.54%)]
0.5mm - 1.4mm 0.5mm - 1.4mm = 13,166
[13,166 (3.74% / 3.76%)] [340,861 / 22,637 (97.30%)]
1.5mm - 2.4mm 1.5mm - 2.4mm = 4,222
[4,222 (1.20% / 1.21%)] [345,083 / 9,471 (98.50%)]
2.5mm - 3.4mm 2.5mm - 3.4mm = 1,986
[1,986 (0.56% / 0.57%)] [347,069 / 5,249 (99.07%)]
3.5mm - 4.4mm 3.5mm - 4.4mm = 1,071
[1,071 (0.30% / 0.31%)] [348,140 / 3,263 (99.37%)]
4.5mm - 5.4mm 4.5mm - 5.4mm = 618
[618 (0.18% / 0.18%)] [348,758 / 2,192 (99.55%)]
5.5mm - 6.4mm 5.5mm - 6.4mm = 414
[414 (0.12% / 0.12%)] [349,172 / 1,574 (99.67%)]
6.5mm - 7.4mm 6.5mm - 7.4mm = 270
[270 (0.08% / 0.08%)] [349,442 / 1,160 (99.75%)]
7.5mm - 8.4mm 7.5mm - 8.4mm = 184
[184 (0.05% / 0.05%)] [349,626 / 890 (99.80%)]
8.5mm - 9.4mm 8.5mm - 9.4mm = 136
[136 (0.04% / 0.04%)] [349,762 / 706 (99.84%)]
9.5mm - 10.4mm 9.5mm - 10.4mm = 112
[112 (0.03% / 0.03%)] [349,874 / 570 (99.87%)]
10.5mm - 11.4mm 10.5mm - 11.4mm = 70
[70 (0.02% / 0.02%)] [349,944 / 458 (99.89%)]
11.5mm - 12.4mm 11.5mm - 12.4mm = 50
[50 (0.01% / 0.01%)] [349,994 / 388 (99.90%)]
12.5mm - 13.4mm 12.5mm - 13.4mm = 52
[52 (0.01% / 0.01%)] [350,046 / 338 (99.92%)]
13.5mm - 14.4mm 13.5mm - 14.4mm = 39
[39 (0.01% / 0.01%)] [350,085 / 286 (99.93%)]
14.5mm - 15.4mm 14.5mm - 15.4mm = 34
[34 (0.01% / 0.01%)] [350,119 / 247 (99.94%)]
15.5mm - 16.4mm 15.5mm - 16.4mm = 27
[27 (0.01% / 0.01%)] [350,146 / 213 (99.95%)]
16.5mm - 17.4mm 16.5mm - 17.4mm = 24
[24 (0.01% / 0.01%)] [350,170 / 186 (99.95%)]
17.5mm - 18.4mm 17.5mm - 18.4mm = 19
[19 (0.01% / 0.01%)] [350,189 / 162 (99.96%)]
18.5mm - 19.4mm 18.5mm - 19.4mm = 13
[13 (0.00% / 0.00%)] [350,202 / 143 (99.96%)]
19.5mm - 20.4mm 19.5mm - 20.4mm = 15
[15 (0.00% / 0.00%)] [350,217 / 130 (99.97%)]
20.5mm - 21.4mm 20.5mm - 21.4mm = 9
[9 (0.00% / 0.00%)] [350,226 / 115 (99.97%)]
21.5mm - 22.4mm 21.5mm - 22.4mm = 15
[15 (0.00% / 0.00%)] [350,241 / 106 (99.97%)]
22.5mm - 23.4mm 22.5mm - 23.4mm = 9
[9 (0.00% / 0.00%)] [350,250 / 91 (99.98%)]
23.5mm - 24.4mm 23.5mm - 24.4mm = 9
[9 (0.00% / 0.00%)] [350,259 / 82 (99.98%)]
24.5mm - 25.4mm 24.5mm - 25.4mm = 10
[10 (0.00% / 0.00%)] [350,269 / 73 (99.98%)]
25.5mm - 26.4mm 25.5mm - 26.4mm = 9
[9 (0.00% / 0.00%)] [350,278 / 63 (99.98%)]
26.5mm - 27.4mm 26.5mm - 27.4mm = 7
[7 (0.00% / 0.00%)] [350,285 / 54 (99.99%)]
27.5mm - 28.4mm 27.5mm - 28.4mm = 2
[2 (0.00% / 0.00%)] [350,287 / 47 (99.99%)]
28.5mm - 29.4mm 28.5mm - 29.4mm = 6
[6 (0.00% / 0.00%)] [350,293 / 45 (99.99%)]
29.5mm - 30.4mm 29.5mm - 30.4mm = 4
[4 (0.00% / 0.00%)] [350,297 / 39 (99.99%)]
30.5mm - 31.4mm 30.5mm - 31.4mm = 2
[2 (0.00% / 0.00%)] [350,299 / 35 (99.99%)]
31.5mm - 32.4mm 31.5mm - 32.4mm = 4
[4 (0.00% / 0.00%)] [350,303 / 33 (99.99%)]
32.5mm - 33.4mm 32.5mm - 33.4mm = 1
[1 (0.00% / 0.00%)] [350,304 / 29 (99.99%)]
33.5mm - 34.4mm 33.5mm - 34.4mm = 1
[1 (0.00% / 0.00%)] [350,305 / 28 (99.99%)]
34.5mm - 35.4mm 34.5mm - 35.4mm = 1
[1 (0.00% / 0.00%)] [350,306 / 27 (99.99%)]
35.5mm - 36.4mm 35.5mm - 36.4mm = 2
[2 (0.00% / 0.00%)] [350,308 / 26 (99.99%)]
36.5mm - 37.4mm 36.5mm - 37.4mm = 1
[1 (0.00% / 0.00%)] [350,309 / 24 (99.99%)]
38.5mm - 39.4mm 38.5mm - 39.4mm = 3
[3 (0.00% / 0.00%)] [350,312 / 23 (99.99%)]
39.5mm - 40.4mm 39.5mm - 40.4mm = 1
[1 (0.00% / 0.00%)] [350,313 / 20 (99.99%)]
40.5mm - 41.4mm 40.5mm - 41.4mm = 5
[5 (0.00% / 0.00%)] [350,318 / 19 (100.00%)]
41.5mm - 42.4mm 41.5mm - 42.4mm = 1
[1 (0.00% / 0.00%)] [350,319 / 14 (100.00%)]
43.5mm - 44.4mm 43.5mm - 44.4mm = 2
[2 (0.00% / 0.00%)] [350,321 / 13 (100.00%)]
44.5mm - 45.4mm 44.5mm - 45.4mm = 2
[2 (0.00% / 0.00%)] [350,323 / 11 (100.00%)]
45.5mm - 46.4mm 45.5mm - 46.4mm = 1
[1 (0.00% / 0.00%)] [350,324 / 9 (100.00%)]
46.5mm - 47.4mm 46.5mm - 47.4mm = 2
[2 (0.00% / 0.00%)] [350,326 / 8 (100.00%)]
47.5mm - 48.4mm 47.5mm - 48.4mm = 1
[1 (0.00% / 0.00%)] [350,327 / 6 (100.00%)]
48.5mm - 49.4mm 48.5mm - 49.4mm = 1
[1 (0.00% / 0.00%)] [350,328 / 5 (100.00%)]
50.5mm - 51.4mm 50.5mm - 51.4mm = 1
[1 (0.00% / 0.00%)] [350,329 / 4 (100.00%)]
53.5mm - 54.4mm 53.5mm - 54.4mm = 1
[1 (0.00% / 0.00%)] [350,330 / 3 (100.00%)]
68.5mm - 69.4mm 68.5mm - 69.4mm = 2
[2 (0.00% / 0.00%)] [350,332 / 2 (100.00%)]

欠測回数 (2,142 / 0.61%)

風向

静穏 静穏 = 125,587
[125,587 (35.63% / 37.11%)] [0 / 0 (NA)]
北北東 北北東 = 3,018
[3,018 (0.86% / 0.89%)] [0 / 0 (NA)]
北東 北東 = 1,791
[1,791 (0.51% / 0.53%)] [0 / 0 (NA)]
東北東 東北東 = 1,300
[1,300 (0.37% / 0.38%)] [0 / 0 (NA)]
東 = 1,513
[1,513 (0.43% / 0.45%)] [0 / 0 (NA)]
東南東 東南東 = 2,522
[2,522 (0.72% / 0.75%)] [0 / 0 (NA)]
南東 南東 = 5,250
[5,250 (1.49% / 1.55%)] [0 / 0 (NA)]
南南東 南南東 = 24,817
[24,817 (7.04% / 7.33%)] [0 / 0 (NA)]
南 = 32,036
[32,036 (9.09% / 9.47%)] [0 / 0 (NA)]
南南西 南南西 = 7,858
[7,858 (2.23% / 2.32%)] [0 / 0 (NA)]
南西 南西 = 3,331
[3,331 (0.95% / 0.98%)] [0 / 0 (NA)]
西南西 西南西 = 2,642
[2,642 (0.75% / 0.78%)] [0 / 0 (NA)]
西 西 = 3,261
[3,261 (0.93% / 0.96%)] [0 / 0 (NA)]
西北西 西北西 = 7,534
[7,534 (2.14% / 2.23%)] [0 / 0 (NA)]
北西 北西 = 43,374
[43,374 (12.31% / 12.82%)] [0 / 0 (NA)]
北北西 北北西 = 64,843
[64,843 (18.40% / 19.16%)] [0 / 0 (NA)]
北 = 7,724
[7,724 (2.19% / 2.28%)] [0 / 0 (NA)]

欠測回数 (14,073 / 3.99%)

風速

0.0m/s - 0.4m/s 0.0m/s - 0.4m/s = 133,143
[133,143 (37.77% / 39.30%)] [133,143 / 338,771 (39.30%)]
0.5m/s - 1.4m/s 0.5m/s - 1.4m/s = 109,580
[109,580 (31.09% / 32.35%)] [242,723 / 205,628 (71.65%)]
1.5m/s - 2.4m/s 1.5m/s - 2.4m/s = 51,452
[51,452 (14.60% / 15.19%)] [294,175 / 96,048 (86.84%)]
2.5m/s - 3.4m/s 2.5m/s - 3.4m/s = 28,564
[28,564 (8.10% / 8.43%)] [322,739 / 44,596 (95.27%)]
3.5m/s - 4.4m/s 3.5m/s - 4.4m/s = 12,242
[12,242 (3.47% / 3.61%)] [334,981 / 16,032 (98.88%)]
4.5m/s - 5.4m/s 4.5m/s - 5.4m/s = 3,007
[3,007 (0.85% / 0.89%)] [337,988 / 3,790 (99.77%)]
5.5m/s - 6.4m/s 5.5m/s - 6.4m/s = 612
[612 (0.17% / 0.18%)] [338,600 / 783 (99.95%)]
6.5m/s - 7.4m/s 6.5m/s - 7.4m/s = 130
[130 (0.04% / 0.04%)] [338,730 / 171 (99.99%)]
7.5m/s - 8.4m/s 7.5m/s - 8.4m/s = 32
[32 (0.01% / 0.01%)] [338,762 / 41 (100.00%)]
8.5m/s - 9.4m/s 8.5m/s - 9.4m/s = 6
[6 (0.00% / 0.00%)] [338,768 / 9 (100.00%)]
9.5m/s - 10.4m/s 9.5m/s - 10.4m/s = 3
[3 (0.00% / 0.00%)] [338,771 / 3 (100.00%)]

欠測回数 (13,703 / 3.89%)

気温

-9.5℃ - -8.6℃ -9.5℃ - -8.6℃ = 4
[4 (0.00% / 0.00%)] [4 / 338,722 (0.00%)]
-8.5℃ - -7.6℃ -8.5℃ - -7.6℃ = 43
[43 (0.01% / 0.01%)] [47 / 338,718 (0.01%)]
-7.5℃ - -6.6℃ -7.5℃ - -6.6℃ = 190
[190 (0.05% / 0.06%)] [237 / 338,675 (0.07%)]
-6.5℃ - -5.6℃ -6.5℃ - -5.6℃ = 455
[455 (0.13% / 0.13%)] [692 / 338,485 (0.20%)]
-5.5℃ - -4.6℃ -5.5℃ - -4.6℃ = 1,020
[1,020 (0.29% / 0.30%)] [1,712 / 338,030 (0.51%)]
-4.5℃ - -3.6℃ -4.5℃ - -3.6℃ = 2,052
[2,052 (0.58% / 0.61%)] [3,764 / 337,010 (1.11%)]
-3.5℃ - -2.6℃ -3.5℃ - -2.6℃ = 3,952
[3,952 (1.12% / 1.17%)] [7,716 / 334,958 (2.28%)]
-2.5℃ - -1.6℃ -2.5℃ - -1.6℃ = 6,455
[6,455 (1.83% / 1.91%)] [14,171 / 331,006 (4.18%)]
-1.5℃ - -0.6℃ -1.5℃ - -0.6℃ = 9,618
[9,618 (2.73% / 2.84%)] [23,789 / 324,551 (7.02%)]
-0.5℃ - 0.4℃ -0.5℃ - 0.4℃ = 21,286
[21,286 (6.04% / 6.28%)] [45,075 / 314,933 (13.31%)]
0.5℃ - 1.4℃ 0.5℃ - 1.4℃ = 10,881
[10,881 (3.09% / 3.21%)] [55,956 / 293,647 (16.52%)]
1.5℃ - 2.4℃ 1.5℃ - 2.4℃ = 10,549
[10,549 (2.99% / 3.11%)] [66,505 / 282,766 (19.63%)]
2.5℃ - 3.4℃ 2.5℃ - 3.4℃ = 10,133
[10,133 (2.87% / 2.99%)] [76,638 / 272,217 (22.63%)]
3.5℃ - 4.4℃ 3.5℃ - 4.4℃ = 10,585
[10,585 (3.00% / 3.12%)] [87,223 / 262,084 (25.75%)]
4.5℃ - 5.4℃ 4.5℃ - 5.4℃ = 10,340
[10,340 (2.93% / 3.05%)] [97,563 / 251,499 (28.80%)]
5.5℃ - 6.4℃ 5.5℃ - 6.4℃ = 10,433
[10,433 (2.96% / 3.08%)] [107,996 / 241,159 (31.88%)]
6.5℃ - 7.4℃ 6.5℃ - 7.4℃ = 10,434
[10,434 (2.96% / 3.08%)] [118,430 / 230,726 (34.96%)]
7.5℃ - 8.4℃ 7.5℃ - 8.4℃ = 10,095
[10,095 (2.86% / 2.98%)] [128,525 / 220,292 (37.94%)]
8.5℃ - 9.4℃ 8.5℃ - 9.4℃ = 10,103
[10,103 (2.87% / 2.98%)] [138,628 / 210,197 (40.93%)]
9.5℃ - 10.4℃ 9.5℃ - 10.4℃ = 10,226
[10,226 (2.90% / 3.02%)] [148,854 / 200,094 (43.95%)]
10.5℃ - 11.4℃ 10.5℃ - 11.4℃ = 10,543
[10,543 (2.99% / 3.11%)] [159,397 / 189,868 (47.06%)]
11.5℃ - 12.4℃ 11.5℃ - 12.4℃ = 10,473
[10,473 (2.97% / 3.09%)] [169,870 / 179,325 (50.15%)]
12.5℃ - 13.4℃ 12.5℃ - 13.4℃ = 10,581
[10,581 (3.00% / 3.12%)] [180,451 / 168,852 (53.27%)]
13.5℃ - 14.4℃ 13.5℃ - 14.4℃ = 10,873
[10,873 (3.08% / 3.21%)] [191,324 / 158,271 (56.48%)]
14.5℃ - 15.4℃ 14.5℃ - 15.4℃ = 10,794
[10,794 (3.06% / 3.19%)] [202,118 / 147,398 (59.67%)]
15.5℃ - 16.4℃ 15.5℃ - 16.4℃ = 11,754
[11,754 (3.33% / 3.47%)] [213,872 / 136,604 (63.14%)]
16.5℃ - 17.4℃ 16.5℃ - 17.4℃ = 11,858
[11,858 (3.36% / 3.50%)] [225,730 / 124,850 (66.64%)]
17.5℃ - 18.4℃ 17.5℃ - 18.4℃ = 12,798
[12,798 (3.63% / 3.78%)] [238,528 / 112,992 (70.42%)]
18.5℃ - 19.4℃ 18.5℃ - 19.4℃ = 12,838
[12,838 (3.64% / 3.79%)] [251,366 / 100,194 (74.21%)]
19.5℃ - 20.4℃ 19.5℃ - 20.4℃ = 13,129
[13,129 (3.72% / 3.88%)] [264,495 / 87,356 (78.09%)]
20.5℃ - 21.4℃ 20.5℃ - 21.4℃ = 12,990
[12,990 (3.69% / 3.84%)] [277,485 / 74,227 (81.92%)]
21.5℃ - 22.4℃ 21.5℃ - 22.4℃ = 13,131
[13,131 (3.73% / 3.88%)] [290,616 / 61,237 (85.80%)]
22.5℃ - 23.4℃ 22.5℃ - 23.4℃ = 11,308
[11,308 (3.21% / 3.34%)] [301,924 / 48,106 (89.14%)]
23.5℃ - 24.4℃ 23.5℃ - 24.4℃ = 8,482
[8,482 (2.41% / 2.50%)] [310,406 / 36,798 (91.64%)]
24.5℃ - 25.4℃ 24.5℃ - 25.4℃ = 6,217
[6,217 (1.76% / 1.84%)] [316,623 / 28,316 (93.48%)]
25.5℃ - 26.4℃ 25.5℃ - 26.4℃ = 4,921
[4,921 (1.40% / 1.45%)] [321,544 / 22,099 (94.93%)]
26.5℃ - 27.4℃ 26.5℃ - 27.4℃ = 4,007
[4,007 (1.14% / 1.18%)] [325,551 / 17,178 (96.11%)]
27.5℃ - 28.4℃ 27.5℃ - 28.4℃ = 3,324
[3,324 (0.94% / 0.98%)] [328,875 / 13,171 (97.09%)]
28.5℃ - 29.4℃ 28.5℃ - 29.4℃ = 2,729
[2,729 (0.77% / 0.81%)] [331,604 / 9,847 (97.90%)]
29.5℃ - 30.4℃ 29.5℃ - 30.4℃ = 2,208
[2,208 (0.63% / 0.65%)] [333,812 / 7,118 (98.55%)]
30.5℃ - 31.4℃ 30.5℃ - 31.4℃ = 1,761
[1,761 (0.50% / 0.52%)] [335,573 / 4,910 (99.07%)]
31.5℃ - 32.4℃ 31.5℃ - 32.4℃ = 1,347
[1,347 (0.38% / 0.40%)] [336,920 / 3,149 (99.47%)]
32.5℃ - 33.4℃ 32.5℃ - 33.4℃ = 884
[884 (0.25% / 0.26%)] [337,804 / 1,802 (99.73%)]
33.5℃ - 34.4℃ 33.5℃ - 34.4℃ = 534
[534 (0.15% / 0.16%)] [338,338 / 918 (99.89%)]
34.5℃ - 35.4℃ 34.5℃ - 35.4℃ = 273
[273 (0.08% / 0.08%)] [338,611 / 384 (99.97%)]
35.5℃ - 36.4℃ 35.5℃ - 36.4℃ = 94
[94 (0.03% / 0.03%)] [338,705 / 111 (99.99%)]
36.5℃ - 37.4℃ 36.5℃ - 37.4℃ = 14
[14 (0.00% / 0.00%)] [338,719 / 17 (100.00%)]
37.5℃ - 38.4℃ 37.5℃ - 38.4℃ = 3
[3 (0.00% / 0.00%)] [338,722 / 3 (100.00%)]

欠測回数 (13,752 / 3.90%)

日照時間

0.0h 0.0h = 252,025
[252,025 (71.50% / 74.84%)] [252,025 / 336,752 (74.84%)]
0.1h 0.1h = 5,745
[5,745 (1.63% / 1.71%)] [257,770 / 84,727 (76.55%)]
0.2h 0.2h = 4,390
[4,390 (1.25% / 1.30%)] [262,160 / 78,982 (77.85%)]
0.3h 0.3h = 4,063
[4,063 (1.15% / 1.21%)] [266,223 / 74,592 (79.06%)]
0.4h 0.4h = 3,947
[3,947 (1.12% / 1.17%)] [270,170 / 70,529 (80.23%)]
0.5h 0.5h = 3,738
[3,738 (1.06% / 1.11%)] [273,908 / 66,582 (81.34%)]
0.6h 0.6h = 3,899
[3,899 (1.11% / 1.16%)] [277,807 / 62,844 (82.50%)]
0.7h 0.7h = 4,513
[4,513 (1.28% / 1.34%)] [282,320 / 58,945 (83.84%)]
0.8h 0.8h = 5,402
[5,402 (1.53% / 1.60%)] [287,722 / 54,432 (85.44%)]
0.9h 0.9h = 6,917
[6,917 (1.96% / 2.05%)] [294,639 / 49,030 (87.49%)]
1.0h 1.0h = 42,113
[42,113 (11.95% / 12.51%)] [336,752 / 42,113 (100.00%)]

欠測回数 (15,722 / 4.46%)