Station Number 48191
Prefecture Nagano [ Local Portal ]
Location 長野県大町市大町 (OMACHI SHI, NAGANO KEN)
Months of Observations 467
Number of Observations 340,999
Period of Observations
Period Name Lat. Long. Height Anemometer
1974/11/01 -- 1978/11/19 OMACHI 36.530N 137.835E 789m 0.0m
1978/11/20 -- 1981/10/05 OMACHI 36.530N 137.835E 789m 6.5m
1981/10/06 -- 1981/10/20 OMACHI 36.523N 137.833E 784m 6.5m
1981/10/21 -- 1986/10/21 OMACHI 36.523N 137.833E 784m 6.5m
1986/10/22 -- 2007/12/17 OMACHI 36.523N 137.833E 784m 6.5m
2007/12/18 -- 2010/08/25 OMACHI 36.523N 137.833E 784m 6.5m
2010/08/26 -- 2015/08/99 OMACHI 36.523N 137.833E 784m 10.0m
Real-time Data AMeRAS (AMeDAS Ranking Service)
Past Heavy Rain Data AMeDAS heavy rain
Weather Disaster Reports
Typhoon History
Neighbor Stations
Number Name Distance Azimuth
48930 OMACHI (Nagano) 0.00km 0deg.
48196 SHINSHUSHIMMACHI (Nagano) 14.95km 79deg.
48292 TSUBAKURODAKE (Nagano) 17.23km 209deg.
48291 TSUBAKURODAKE (Nagano) 17.70km 217deg.
48141 HAKUBA (Nagano) 19.59km 7deg.
48920 HAKUBA (Nagano) 19.59km 7deg.
48296 HOTAKA (Nagano) 20.45km 167deg.
48247 HIJIRIKOGEN (Nagano) 21.43km 100deg.
48146 KINASA (Nagano) 21.79km 32deg.
48246 AZUNAYASAM (Nagano) 23.06km 120deg.
55226 TATEYAMA (Toyama) 23.75km 286deg.

Statistics for the Whole Period

Precipitation

0.0mm - 0.4mm 0.0mm - 0.4mm = 310,080
[310,080 (90.93% / 91.66%)] [310,080 / 338,276 (91.66%)]
0.5mm - 1.4mm 0.5mm - 1.4mm = 16,568
[16,568 (4.86% / 4.90%)] [326,648 / 28,196 (96.56%)]
1.5mm - 2.4mm 1.5mm - 2.4mm = 5,506
[5,506 (1.61% / 1.63%)] [332,154 / 11,628 (98.19%)]
2.5mm - 3.4mm 2.5mm - 3.4mm = 2,660
[2,660 (0.78% / 0.79%)] [334,814 / 6,122 (98.98%)]
3.5mm - 4.4mm 3.5mm - 4.4mm = 1,386
[1,386 (0.41% / 0.41%)] [336,200 / 3,462 (99.39%)]
4.5mm - 5.4mm 4.5mm - 5.4mm = 753
[753 (0.22% / 0.22%)] [336,953 / 2,076 (99.61%)]
5.5mm - 6.4mm 5.5mm - 6.4mm = 449
[449 (0.13% / 0.13%)] [337,402 / 1,323 (99.74%)]
6.5mm - 7.4mm 6.5mm - 7.4mm = 273
[273 (0.08% / 0.08%)] [337,675 / 874 (99.82%)]
7.5mm - 8.4mm 7.5mm - 8.4mm = 167
[167 (0.05% / 0.05%)] [337,842 / 601 (99.87%)]
8.5mm - 9.4mm 8.5mm - 9.4mm = 107
[107 (0.03% / 0.03%)] [337,949 / 434 (99.90%)]
9.5mm - 10.4mm 9.5mm - 10.4mm = 88
[88 (0.03% / 0.03%)] [338,037 / 327 (99.93%)]
10.5mm - 11.4mm 10.5mm - 11.4mm = 56
[56 (0.02% / 0.02%)] [338,093 / 239 (99.95%)]
11.5mm - 12.4mm 11.5mm - 12.4mm = 39
[39 (0.01% / 0.01%)] [338,132 / 183 (99.96%)]
12.5mm - 13.4mm 12.5mm - 13.4mm = 31
[31 (0.01% / 0.01%)] [338,163 / 144 (99.97%)]
13.5mm - 14.4mm 13.5mm - 14.4mm = 25
[25 (0.01% / 0.01%)] [338,188 / 113 (99.97%)]
14.5mm - 15.4mm 14.5mm - 15.4mm = 16
[16 (0.00% / 0.00%)] [338,204 / 88 (99.98%)]
15.5mm - 16.4mm 15.5mm - 16.4mm = 12
[12 (0.00% / 0.00%)] [338,216 / 72 (99.98%)]
16.5mm - 17.4mm 16.5mm - 17.4mm = 10
[10 (0.00% / 0.00%)] [338,226 / 60 (99.99%)]
17.5mm - 18.4mm 17.5mm - 18.4mm = 12
[12 (0.00% / 0.00%)] [338,238 / 50 (99.99%)]
18.5mm - 19.4mm 18.5mm - 19.4mm = 8
[8 (0.00% / 0.00%)] [338,246 / 38 (99.99%)]
19.5mm - 20.4mm 19.5mm - 20.4mm = 3
[3 (0.00% / 0.00%)] [338,249 / 30 (99.99%)]
20.5mm - 21.4mm 20.5mm - 21.4mm = 5
[5 (0.00% / 0.00%)] [338,254 / 27 (99.99%)]
21.5mm - 22.4mm 21.5mm - 22.4mm = 2
[2 (0.00% / 0.00%)] [338,256 / 22 (99.99%)]
22.5mm - 23.4mm 22.5mm - 23.4mm = 3
[3 (0.00% / 0.00%)] [338,259 / 20 (99.99%)]
23.5mm - 24.4mm 23.5mm - 24.4mm = 2
[2 (0.00% / 0.00%)] [338,261 / 17 (100.00%)]
24.5mm - 25.4mm 24.5mm - 25.4mm = 2
[2 (0.00% / 0.00%)] [338,263 / 15 (100.00%)]
25.5mm - 26.4mm 25.5mm - 26.4mm = 2
[2 (0.00% / 0.00%)] [338,265 / 13 (100.00%)]
28.5mm - 29.4mm 28.5mm - 29.4mm = 1
[1 (0.00% / 0.00%)] [338,266 / 11 (100.00%)]
29.5mm - 30.4mm 29.5mm - 30.4mm = 2
[2 (0.00% / 0.00%)] [338,268 / 10 (100.00%)]
30.5mm - 31.4mm 30.5mm - 31.4mm = 1
[1 (0.00% / 0.00%)] [338,269 / 8 (100.00%)]
32.5mm - 33.4mm 32.5mm - 33.4mm = 1
[1 (0.00% / 0.00%)] [338,270 / 7 (100.00%)]
33.5mm - 34.4mm 33.5mm - 34.4mm = 1
[1 (0.00% / 0.00%)] [338,271 / 6 (100.00%)]
36.5mm - 37.4mm 36.5mm - 37.4mm = 1
[1 (0.00% / 0.00%)] [338,272 / 5 (100.00%)]
37.5mm - 38.4mm 37.5mm - 38.4mm = 2
[2 (0.00% / 0.00%)] [338,274 / 4 (100.00%)]
40.5mm - 41.4mm 40.5mm - 41.4mm = 1
[1 (0.00% / 0.00%)] [338,275 / 2 (100.00%)]
44.5mm - 45.4mm 44.5mm - 45.4mm = 1
[1 (0.00% / 0.00%)] [338,276 / 1 (100.00%)]

Missing observations (2,723 / 0.80%)

Wind Direction

Calm Calm = 40,166
[40,166 (11.78% / 12.48%)] [0 / 0 (NA)]
NNE NNE = 51,709
[51,709 (15.16% / 16.06%)] [0 / 0 (NA)]
NE NE = 17,383
[17,383 (5.10% / 5.40%)] [0 / 0 (NA)]
ENE ENE = 8,880
[8,880 (2.60% / 2.76%)] [0 / 0 (NA)]
E E = 6,610
[6,610 (1.94% / 2.05%)] [0 / 0 (NA)]
ESE ESE = 6,986
[6,986 (2.05% / 2.17%)] [0 / 0 (NA)]
SE SE = 8,520
[8,520 (2.50% / 2.65%)] [0 / 0 (NA)]
SSE SSE = 11,250
[11,250 (3.30% / 3.49%)] [0 / 0 (NA)]
S S = 13,640
[13,640 (4.00% / 4.24%)] [0 / 0 (NA)]
SSW SSW = 9,944
[9,944 (2.92% / 3.09%)] [0 / 0 (NA)]
SW SW = 6,010
[6,010 (1.76% / 1.87%)] [0 / 0 (NA)]
WSW WSW = 6,882
[6,882 (2.02% / 2.14%)] [0 / 0 (NA)]
W W = 14,384
[14,384 (4.22% / 4.47%)] [0 / 0 (NA)]
WNW WNW = 31,563
[31,563 (9.26% / 9.81%)] [0 / 0 (NA)]
NW NW = 34,625
[34,625 (10.15% / 10.76%)] [0 / 0 (NA)]
NNW NNW = 18,090
[18,090 (5.31% / 5.62%)] [0 / 0 (NA)]
N N = 35,264
[35,264 (10.34% / 10.95%)] [0 / 0 (NA)]

Missing observations (19,093 / 5.60%)

Wind Speed

0.0m/s - 0.4m/s 0.0m/s - 0.4m/s = 41,525
[41,525 (12.18% / 12.90%)] [41,525 / 321,950 (12.90%)]
0.5m/s - 1.4m/s 0.5m/s - 1.4m/s = 119,976
[119,976 (35.18% / 37.27%)] [161,501 / 280,425 (50.16%)]
1.5m/s - 2.4m/s 1.5m/s - 2.4m/s = 81,586
[81,586 (23.93% / 25.34%)] [243,087 / 160,449 (75.50%)]
2.5m/s - 3.4m/s 2.5m/s - 3.4m/s = 35,539
[35,539 (10.42% / 11.04%)] [278,626 / 78,863 (86.54%)]
3.5m/s - 4.4m/s 3.5m/s - 4.4m/s = 21,533
[21,533 (6.31% / 6.69%)] [300,159 / 43,324 (93.23%)]
4.5m/s - 5.4m/s 4.5m/s - 5.4m/s = 12,540
[12,540 (3.68% / 3.90%)] [312,699 / 21,791 (97.13%)]
5.5m/s - 6.4m/s 5.5m/s - 6.4m/s = 5,821
[5,821 (1.71% / 1.81%)] [318,520 / 9,251 (98.93%)]
6.5m/s - 7.4m/s 6.5m/s - 7.4m/s = 2,282
[2,282 (0.67% / 0.71%)] [320,802 / 3,430 (99.64%)]
7.5m/s - 8.4m/s 7.5m/s - 8.4m/s = 822
[822 (0.24% / 0.26%)] [321,624 / 1,148 (99.90%)]
8.5m/s - 9.4m/s 8.5m/s - 9.4m/s = 247
[247 (0.07% / 0.08%)] [321,871 / 326 (99.98%)]
9.5m/s - 10.4m/s 9.5m/s - 10.4m/s = 57
[57 (0.02% / 0.02%)] [321,928 / 79 (99.99%)]
10.5m/s - 11.4m/s 10.5m/s - 11.4m/s = 17
[17 (0.00% / 0.01%)] [321,945 / 22 (100.00%)]
11.5m/s - 12.4m/s 11.5m/s - 12.4m/s = 5
[5 (0.00% / 0.00%)] [321,950 / 5 (100.00%)]

Missing observations (19,049 / 5.59%)

Temperature

-17.5C - -16.6C -17.5C - -16.6C = 2
[2 (0.00% / 0.00%)] [2 / 322,004 (0.00%)]
-16.5C - -15.6C -16.5C - -15.6C = 5
[5 (0.00% / 0.00%)] [7 / 322,002 (0.00%)]
-15.5C - -14.6C -15.5C - -14.6C = 13
[13 (0.00% / 0.00%)] [20 / 321,997 (0.01%)]
-14.5C - -13.6C -14.5C - -13.6C = 90
[90 (0.03% / 0.03%)] [110 / 321,984 (0.03%)]
-13.5C - -12.6C -13.5C - -12.6C = 210
[210 (0.06% / 0.07%)] [320 / 321,894 (0.10%)]
-12.5C - -11.6C -12.5C - -11.6C = 362
[362 (0.11% / 0.11%)] [682 / 321,684 (0.21%)]
-11.5C - -10.6C -11.5C - -10.6C = 668
[668 (0.20% / 0.21%)] [1,350 / 321,322 (0.42%)]
-10.5C - -9.6C -10.5C - -9.6C = 1,008
[1,008 (0.30% / 0.31%)] [2,358 / 320,654 (0.73%)]
-9.5C - -8.6C -9.5C - -8.6C = 1,388
[1,388 (0.41% / 0.43%)] [3,746 / 319,646 (1.16%)]
-8.5C - -7.6C -8.5C - -7.6C = 2,026
[2,026 (0.59% / 0.63%)] [5,772 / 318,258 (1.79%)]
-7.5C - -6.6C -7.5C - -6.6C = 2,720
[2,720 (0.80% / 0.84%)] [8,492 / 316,232 (2.64%)]
-6.5C - -5.6C -6.5C - -5.6C = 3,925
[3,925 (1.15% / 1.22%)] [12,417 / 313,512 (3.86%)]
-5.5C - -4.6C -5.5C - -4.6C = 5,314
[5,314 (1.56% / 1.65%)] [17,731 / 309,587 (5.51%)]
-4.5C - -3.6C -4.5C - -3.6C = 6,717
[6,717 (1.97% / 2.09%)] [24,448 / 304,273 (7.59%)]
-3.5C - -2.6C -3.5C - -2.6C = 8,437
[8,437 (2.47% / 2.62%)] [32,885 / 297,556 (10.21%)]
-2.5C - -1.6C -2.5C - -1.6C = 9,523
[9,523 (2.79% / 2.96%)] [42,408 / 289,119 (13.17%)]
-1.5C - -0.6C -1.5C - -0.6C = 11,004
[11,004 (3.23% / 3.42%)] [53,412 / 279,596 (16.59%)]
-0.5C - 0.4C -0.5C - 0.4C = 23,491
[23,491 (6.89% / 7.30%)] [76,903 / 268,592 (23.88%)]
0.5C - 1.4C 0.5C - 1.4C = 11,854
[11,854 (3.48% / 3.68%)] [88,757 / 245,101 (27.56%)]
1.5C - 2.4C 1.5C - 2.4C = 10,284
[10,284 (3.02% / 3.19%)] [99,041 / 233,247 (30.76%)]
2.5C - 3.4C 2.5C - 3.4C = 9,298
[9,298 (2.73% / 2.89%)] [108,339 / 222,963 (33.65%)]
3.5C - 4.4C 3.5C - 4.4C = 8,475
[8,475 (2.49% / 2.63%)] [116,814 / 213,665 (36.28%)]
4.5C - 5.4C 4.5C - 5.4C = 8,172
[8,172 (2.40% / 2.54%)] [124,986 / 205,190 (38.82%)]
5.5C - 6.4C 5.5C - 6.4C = 8,253
[8,253 (2.42% / 2.56%)] [133,239 / 197,018 (41.38%)]
6.5C - 7.4C 6.5C - 7.4C = 8,199
[8,199 (2.40% / 2.55%)] [141,438 / 188,765 (43.92%)]
7.5C - 8.4C 7.5C - 8.4C = 8,128
[8,128 (2.38% / 2.52%)] [149,566 / 180,566 (46.45%)]
8.5C - 9.4C 8.5C - 9.4C = 8,261
[8,261 (2.42% / 2.57%)] [157,827 / 172,438 (49.01%)]
9.5C - 10.4C 9.5C - 10.4C = 8,577
[8,577 (2.52% / 2.66%)] [166,404 / 164,177 (51.68%)]
10.5C - 11.4C 10.5C - 11.4C = 8,705
[8,705 (2.55% / 2.70%)] [175,109 / 155,600 (54.38%)]
11.5C - 12.4C 11.5C - 12.4C = 9,043
[9,043 (2.65% / 2.81%)] [184,152 / 146,895 (57.19%)]
12.5C - 13.4C 12.5C - 13.4C = 9,295
[9,295 (2.73% / 2.89%)] [193,447 / 137,852 (60.08%)]
13.5C - 14.4C 13.5C - 14.4C = 9,402
[9,402 (2.76% / 2.92%)] [202,849 / 128,557 (63.00%)]
14.5C - 15.4C 14.5C - 15.4C = 9,943
[9,943 (2.92% / 3.09%)] [212,792 / 119,155 (66.08%)]
15.5C - 16.4C 15.5C - 16.4C = 10,488
[10,488 (3.08% / 3.26%)] [223,280 / 109,212 (69.34%)]
16.5C - 17.4C 16.5C - 17.4C = 11,096
[11,096 (3.25% / 3.45%)] [234,376 / 98,724 (72.79%)]
17.5C - 18.4C 17.5C - 18.4C = 12,578
[12,578 (3.69% / 3.91%)] [246,954 / 87,628 (76.69%)]
18.5C - 19.4C 18.5C - 19.4C = 13,078
[13,078 (3.84% / 4.06%)] [260,032 / 75,050 (80.75%)]
19.5C - 20.4C 19.5C - 20.4C = 13,086
[13,086 (3.84% / 4.06%)] [273,118 / 61,972 (84.82%)]
20.5C - 21.4C 20.5C - 21.4C = 11,322
[11,322 (3.32% / 3.52%)] [284,440 / 48,886 (88.33%)]
21.5C - 22.4C 21.5C - 22.4C = 8,736
[8,736 (2.56% / 2.71%)] [293,176 / 37,564 (91.05%)]
22.5C - 23.4C 22.5C - 23.4C = 6,873
[6,873 (2.02% / 2.13%)] [300,049 / 28,828 (93.18%)]
23.5C - 24.4C 23.5C - 24.4C = 5,628
[5,628 (1.65% / 1.75%)] [305,677 / 21,955 (94.93%)]
24.5C - 25.4C 24.5C - 25.4C = 4,495
[4,495 (1.32% / 1.40%)] [310,172 / 16,327 (96.33%)]
25.5C - 26.4C 25.5C - 26.4C = 3,555
[3,555 (1.04% / 1.10%)] [313,727 / 11,832 (97.43%)]
26.5C - 27.4C 26.5C - 27.4C = 2,825
[2,825 (0.83% / 0.88%)] [316,552 / 8,277 (98.31%)]
27.5C - 28.4C 27.5C - 28.4C = 2,108
[2,108 (0.62% / 0.65%)] [318,660 / 5,452 (98.96%)]
28.5C - 29.4C 28.5C - 29.4C = 1,547
[1,547 (0.45% / 0.48%)] [320,207 / 3,344 (99.44%)]
29.5C - 30.4C 29.5C - 30.4C = 950
[950 (0.28% / 0.30%)] [321,157 / 1,797 (99.74%)]
30.5C - 31.4C 30.5C - 31.4C = 514
[514 (0.15% / 0.16%)] [321,671 / 847 (99.90%)]
31.5C - 32.4C 31.5C - 32.4C = 224
[224 (0.07% / 0.07%)] [321,895 / 333 (99.97%)]
32.5C - 33.4C 32.5C - 33.4C = 81
[81 (0.02% / 0.03%)] [321,976 / 109 (99.99%)]
33.5C - 34.4C 33.5C - 34.4C = 21
[21 (0.01% / 0.01%)] [321,997 / 28 (100.00%)]
34.5C - 35.4C 34.5C - 35.4C = 7
[7 (0.00% / 0.00%)] [322,004 / 7 (100.00%)]

Missing observations (18,995 / 5.57%)

Sunshine Duration

0.0h 0.0h = 230,123
[230,123 (67.48% / 71.47%)] [230,123 / 321,973 (71.47%)]
0.1h 0.1h = 7,876
[7,876 (2.31% / 2.45%)] [237,999 / 91,850 (73.92%)]
0.2h 0.2h = 5,829
[5,829 (1.71% / 1.81%)] [243,828 / 83,974 (75.73%)]
0.3h 0.3h = 5,068
[5,068 (1.49% / 1.57%)] [248,896 / 78,145 (77.30%)]
0.4h 0.4h = 4,678
[4,678 (1.37% / 1.45%)] [253,574 / 73,077 (78.76%)]
0.5h 0.5h = 4,459
[4,459 (1.31% / 1.38%)] [258,033 / 68,399 (80.14%)]
0.6h 0.6h = 4,604
[4,604 (1.35% / 1.43%)] [262,637 / 63,940 (81.57%)]
0.7h 0.7h = 4,693
[4,693 (1.38% / 1.46%)] [267,330 / 59,336 (83.03%)]
0.8h 0.8h = 5,346
[5,346 (1.57% / 1.66%)] [272,676 / 54,643 (84.69%)]
0.9h 0.9h = 6,838
[6,838 (2.01% / 2.12%)] [279,514 / 49,297 (86.81%)]
1.0h 1.0h = 42,459
[42,459 (12.45% / 13.19%)] [321,973 / 42,459 (100.00%)]

Missing observations (19,026 / 5.58%)

Snow Depth

0cm 0cm = 21,015
[21,015 (6.16% / 59.06%)] [21,015 / 35,581 (59.06%)]
1cm - 5cm 1cm - 5cm = 1,619
[1,619 (0.47% / 4.55%)] [22,634 / 14,566 (63.61%)]
6cm - 10cm 6cm - 10cm = 2,091
[2,091 (0.61% / 5.88%)] [24,725 / 12,947 (69.49%)]
11cm - 15cm 11cm - 15cm = 1,885
[1,885 (0.55% / 5.30%)] [26,610 / 10,856 (74.79%)]
16cm - 20cm 16cm - 20cm = 1,483
[1,483 (0.43% / 4.17%)] [28,093 / 8,971 (78.96%)]
21cm - 25cm 21cm - 25cm = 1,017
[1,017 (0.30% / 2.86%)] [29,110 / 7,488 (81.81%)]
26cm - 30cm 26cm - 30cm = 1,586
[1,586 (0.47% / 4.46%)] [30,696 / 6,471 (86.27%)]
31cm - 35cm 31cm - 35cm = 1,366
[1,366 (0.40% / 3.84%)] [32,062 / 4,885 (90.11%)]
36cm - 40cm 36cm - 40cm = 1,223
[1,223 (0.36% / 3.44%)] [33,285 / 3,519 (93.55%)]
41cm - 45cm 41cm - 45cm = 656
[656 (0.19% / 1.84%)] [33,941 / 2,296 (95.39%)]
46cm - 50cm 46cm - 50cm = 424
[424 (0.12% / 1.19%)] [34,365 / 1,640 (96.58%)]
51cm - 55cm 51cm - 55cm = 440
[440 (0.13% / 1.24%)] [34,805 / 1,216 (97.82%)]
56cm - 60cm 56cm - 60cm = 352
[352 (0.10% / 0.99%)] [35,157 / 776 (98.81%)]
61cm - 65cm 61cm - 65cm = 193
[193 (0.06% / 0.54%)] [35,350 / 424 (99.35%)]
66cm - 70cm 66cm - 70cm = 138
[138 (0.04% / 0.39%)] [35,488 / 231 (99.74%)]
71cm - 75cm 71cm - 75cm = 49
[49 (0.01% / 0.14%)] [35,537 / 93 (99.88%)]
76cm - 80cm 76cm - 80cm = 32
[32 (0.01% / 0.09%)] [35,569 / 44 (99.97%)]
81cm - 85cm 81cm - 85cm = 4
[4 (0.00% / 0.01%)] [35,573 / 12 (99.98%)]
86cm - 90cm 86cm - 90cm = 6
[6 (0.00% / 0.02%)] [35,579 / 8 (99.99%)]
91cm - 95cm 91cm - 95cm = 2
[2 (0.00% / 0.01%)] [35,581 / 2 (100.00%)]

Missing observations (305,418 / 89.57%)