Station Number 48731
Prefecture Nagano [ Local Portal ]
Location 長野県上伊那郡飯島町七久保 (KAMIINA GUN IIJIMA MACHI, NAGANO KEN)
Months of Observations 466
Number of Observations 339,734
Period of Observations
Period Name Lat. Long. Height Anemometer
1974/11/01 -- 1978/11/27 IIJIMA 35.653N 137.898E 728m 0.0m
1978/11/28 -- 1988/08/22 IIJIMA 35.653N 137.898E 728m 6.5m
1988/08/23 -- 2008/01/21 IIJIMA 35.653N 137.898E 728m 6.5m
2008/01/22 -- 2010/03/22 IIJIMA 35.653N 137.898E 728m 6.5m
2010/03/23 -- 2015/08/99 IIJIMA 35.653N 137.898E 728m 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
48686 MIYADA (Nagano) 11.06km 6deg.
48681 MIYATAKOGEN (Nagano) 13.37km 354deg.
48767 IIDA (Nagano) 15.98km 205deg.
48945 IIDA (Nagano) 15.98km 205deg.
48721 SURIKOGIYAMA (Nagano) 16.00km 255deg.
48761 SURIKOGIYAMA (Nagano) 16.36km 246deg.
48766 IIDA (Nagano) 16.65km 200deg.
48737 OSHIKA (Nagano) 16.70km 129deg.
48736 SASAYAMA (Nagano) 17.66km 106deg.
48716 SUHARA (Nagano) 19.31km 285deg.
48691 SUGISHIMA (Nagano) 19.47km 64deg.
48621 INA (Nagano) 19.94km 14deg.
48696 MATSUMINE (Nagano) 22.13km 64deg.
48626 TAKATO (Nagano) 25.06km 34deg.
48717 NAGISO (Nagano) 25.63km 259deg.
48606 KISOFUKUSHIMA (Nagano) 28.13km 317deg.
48796 AMIKAKEYAMA (Nagano) 29.15km 218deg.

Statistics for the Whole Period

Precipitation

0.0mm - 0.4mm 0.0mm - 0.4mm = 309,311
[309,311 (91.05% / 91.45%)] [309,311 / 338,217 (91.45%)]
0.5mm - 1.4mm 0.5mm - 1.4mm = 12,959
[12,959 (3.81% / 3.83%)] [322,270 / 28,906 (95.28%)]
1.5mm - 2.4mm 1.5mm - 2.4mm = 5,675
[5,675 (1.67% / 1.68%)] [327,945 / 15,947 (96.96%)]
2.5mm - 3.4mm 2.5mm - 3.4mm = 3,288
[3,288 (0.97% / 0.97%)] [331,233 / 10,272 (97.94%)]
3.5mm - 4.4mm 3.5mm - 4.4mm = 2,054
[2,054 (0.60% / 0.61%)] [333,287 / 6,984 (98.54%)]
4.5mm - 5.4mm 4.5mm - 5.4mm = 1,426
[1,426 (0.42% / 0.42%)] [334,713 / 4,930 (98.96%)]
5.5mm - 6.4mm 5.5mm - 6.4mm = 943
[943 (0.28% / 0.28%)] [335,656 / 3,504 (99.24%)]
6.5mm - 7.4mm 6.5mm - 7.4mm = 693
[693 (0.20% / 0.20%)] [336,349 / 2,561 (99.45%)]
7.5mm - 8.4mm 7.5mm - 8.4mm = 510
[510 (0.15% / 0.15%)] [336,859 / 1,868 (99.60%)]
8.5mm - 9.4mm 8.5mm - 9.4mm = 391
[391 (0.12% / 0.12%)] [337,250 / 1,358 (99.71%)]
9.5mm - 10.4mm 9.5mm - 10.4mm = 258
[258 (0.08% / 0.08%)] [337,508 / 967 (99.79%)]
10.5mm - 11.4mm 10.5mm - 11.4mm = 179
[179 (0.05% / 0.05%)] [337,687 / 709 (99.84%)]
11.5mm - 12.4mm 11.5mm - 12.4mm = 133
[133 (0.04% / 0.04%)] [337,820 / 530 (99.88%)]
12.5mm - 13.4mm 12.5mm - 13.4mm = 82
[82 (0.02% / 0.02%)] [337,902 / 397 (99.91%)]
13.5mm - 14.4mm 13.5mm - 14.4mm = 78
[78 (0.02% / 0.02%)] [337,980 / 315 (99.93%)]
14.5mm - 15.4mm 14.5mm - 15.4mm = 58
[58 (0.02% / 0.02%)] [338,038 / 237 (99.95%)]
15.5mm - 16.4mm 15.5mm - 16.4mm = 34
[34 (0.01% / 0.01%)] [338,072 / 179 (99.96%)]
16.5mm - 17.4mm 16.5mm - 17.4mm = 28
[28 (0.01% / 0.01%)] [338,100 / 145 (99.97%)]
17.5mm - 18.4mm 17.5mm - 18.4mm = 17
[17 (0.01% / 0.01%)] [338,117 / 117 (99.97%)]
18.5mm - 19.4mm 18.5mm - 19.4mm = 29
[29 (0.01% / 0.01%)] [338,146 / 100 (99.98%)]
19.5mm - 20.4mm 19.5mm - 20.4mm = 14
[14 (0.00% / 0.00%)] [338,160 / 71 (99.98%)]
20.5mm - 21.4mm 20.5mm - 21.4mm = 11
[11 (0.00% / 0.00%)] [338,171 / 57 (99.99%)]
21.5mm - 22.4mm 21.5mm - 22.4mm = 5
[5 (0.00% / 0.00%)] [338,176 / 46 (99.99%)]
22.5mm - 23.4mm 22.5mm - 23.4mm = 11
[11 (0.00% / 0.00%)] [338,187 / 41 (99.99%)]
23.5mm - 24.4mm 23.5mm - 24.4mm = 2
[2 (0.00% / 0.00%)] [338,189 / 30 (99.99%)]
24.5mm - 25.4mm 24.5mm - 25.4mm = 4
[4 (0.00% / 0.00%)] [338,193 / 28 (99.99%)]
25.5mm - 26.4mm 25.5mm - 26.4mm = 4
[4 (0.00% / 0.00%)] [338,197 / 24 (99.99%)]
26.5mm - 27.4mm 26.5mm - 27.4mm = 3
[3 (0.00% / 0.00%)] [338,200 / 20 (99.99%)]
27.5mm - 28.4mm 27.5mm - 28.4mm = 2
[2 (0.00% / 0.00%)] [338,202 / 17 (100.00%)]
28.5mm - 29.4mm 28.5mm - 29.4mm = 2
[2 (0.00% / 0.00%)] [338,204 / 15 (100.00%)]
29.5mm - 30.4mm 29.5mm - 30.4mm = 2
[2 (0.00% / 0.00%)] [338,206 / 13 (100.00%)]
31.5mm - 32.4mm 31.5mm - 32.4mm = 2
[2 (0.00% / 0.00%)] [338,208 / 11 (100.00%)]
34.5mm - 35.4mm 34.5mm - 35.4mm = 1
[1 (0.00% / 0.00%)] [338,209 / 9 (100.00%)]
35.5mm - 36.4mm 35.5mm - 36.4mm = 4
[4 (0.00% / 0.00%)] [338,213 / 8 (100.00%)]
37.5mm - 38.4mm 37.5mm - 38.4mm = 1
[1 (0.00% / 0.00%)] [338,214 / 4 (100.00%)]
42.5mm - 43.4mm 42.5mm - 43.4mm = 1
[1 (0.00% / 0.00%)] [338,215 / 3 (100.00%)]
46.5mm - 47.4mm 46.5mm - 47.4mm = 1
[1 (0.00% / 0.00%)] [338,216 / 2 (100.00%)]
50.5mm - 51.4mm 50.5mm - 51.4mm = 1
[1 (0.00% / 0.00%)] [338,217 / 1 (100.00%)]

Missing observations (1,517 / 0.45%)

Wind Direction

Calm Calm = 15,391
[15,391 (4.53% / 4.78%)] [0 / 0 (NA)]
NNE NNE = 21,128
[21,128 (6.22% / 6.56%)] [0 / 0 (NA)]
NE NE = 11,669
[11,669 (3.43% / 3.62%)] [0 / 0 (NA)]
ENE ENE = 4,129
[4,129 (1.22% / 1.28%)] [0 / 0 (NA)]
E E = 2,975
[2,975 (0.88% / 0.92%)] [0 / 0 (NA)]
ESE ESE = 3,539
[3,539 (1.04% / 1.10%)] [0 / 0 (NA)]
SE SE = 10,666
[10,666 (3.14% / 3.31%)] [0 / 0 (NA)]
SSE SSE = 27,780
[27,780 (8.18% / 8.63%)] [0 / 0 (NA)]
S S = 53,087
[53,087 (15.63% / 16.49%)] [0 / 0 (NA)]
SSW SSW = 30,040
[30,040 (8.84% / 9.33%)] [0 / 0 (NA)]
SW SW = 9,793
[9,793 (2.88% / 3.04%)] [0 / 0 (NA)]
WSW WSW = 5,293
[5,293 (1.56% / 1.64%)] [0 / 0 (NA)]
W W = 8,256
[8,256 (2.43% / 2.56%)] [0 / 0 (NA)]
WNW WNW = 37,259
[37,259 (10.97% / 11.57%)] [0 / 0 (NA)]
NW NW = 21,098
[21,098 (6.21% / 6.55%)] [0 / 0 (NA)]
NNW NNW = 23,060
[23,060 (6.79% / 7.16%)] [0 / 0 (NA)]
N N = 36,810
[36,810 (10.83% / 11.43%)] [0 / 0 (NA)]

Missing observations (17,761 / 5.23%)

Wind Speed

0.0m/s - 0.4m/s 0.0m/s - 0.4m/s = 15,967
[15,967 (4.70% / 4.96%)] [15,967 / 322,033 (4.96%)]
0.5m/s - 1.4m/s 0.5m/s - 1.4m/s = 80,960
[80,960 (23.83% / 25.14%)] [96,927 / 306,066 (30.10%)]
1.5m/s - 2.4m/s 1.5m/s - 2.4m/s = 96,460
[96,460 (28.39% / 29.95%)] [193,387 / 225,106 (60.05%)]
2.5m/s - 3.4m/s 2.5m/s - 3.4m/s = 57,301
[57,301 (16.87% / 17.79%)] [250,688 / 128,646 (77.85%)]
3.5m/s - 4.4m/s 3.5m/s - 4.4m/s = 38,030
[38,030 (11.19% / 11.81%)] [288,718 / 71,345 (89.65%)]
4.5m/s - 5.4m/s 4.5m/s - 5.4m/s = 21,927
[21,927 (6.45% / 6.81%)] [310,645 / 33,315 (96.46%)]
5.5m/s - 6.4m/s 5.5m/s - 6.4m/s = 8,632
[8,632 (2.54% / 2.68%)] [319,277 / 11,388 (99.14%)]
6.5m/s - 7.4m/s 6.5m/s - 7.4m/s = 2,254
[2,254 (0.66% / 0.70%)] [321,531 / 2,756 (99.84%)]
7.5m/s - 8.4m/s 7.5m/s - 8.4m/s = 401
[401 (0.12% / 0.12%)] [321,932 / 502 (99.97%)]
8.5m/s - 9.4m/s 8.5m/s - 9.4m/s = 78
[78 (0.02% / 0.02%)] [322,010 / 101 (99.99%)]
9.5m/s - 10.4m/s 9.5m/s - 10.4m/s = 14
[14 (0.00% / 0.00%)] [322,024 / 23 (100.00%)]
10.5m/s - 11.4m/s 10.5m/s - 11.4m/s = 4
[4 (0.00% / 0.00%)] [322,028 / 9 (100.00%)]
11.5m/s - 12.4m/s 11.5m/s - 12.4m/s = 3
[3 (0.00% / 0.00%)] [322,031 / 5 (100.00%)]
12.5m/s - 13.4m/s 12.5m/s - 13.4m/s = 2
[2 (0.00% / 0.00%)] [322,033 / 2 (100.00%)]

Missing observations (17,701 / 5.21%)

Temperature

-13.5C - -12.6C -13.5C - -12.6C = 6
[6 (0.00% / 0.00%)] [6 / 321,964 (0.00%)]
-12.5C - -11.6C -12.5C - -11.6C = 15
[15 (0.00% / 0.00%)] [21 / 321,958 (0.01%)]
-11.5C - -10.6C -11.5C - -10.6C = 36
[36 (0.01% / 0.01%)] [57 / 321,943 (0.02%)]
-10.5C - -9.6C -10.5C - -9.6C = 139
[139 (0.04% / 0.04%)] [196 / 321,907 (0.06%)]
-9.5C - -8.6C -9.5C - -8.6C = 352
[352 (0.10% / 0.11%)] [548 / 321,768 (0.17%)]
-8.5C - -7.6C -8.5C - -7.6C = 662
[662 (0.19% / 0.21%)] [1,210 / 321,416 (0.38%)]
-7.5C - -6.6C -7.5C - -6.6C = 1,125
[1,125 (0.33% / 0.35%)] [2,335 / 320,754 (0.73%)]
-6.5C - -5.6C -6.5C - -5.6C = 1,982
[1,982 (0.58% / 0.62%)] [4,317 / 319,629 (1.34%)]
-5.5C - -4.6C -5.5C - -4.6C = 3,039
[3,039 (0.89% / 0.94%)] [7,356 / 317,647 (2.28%)]
-4.5C - -3.6C -4.5C - -3.6C = 4,169
[4,169 (1.23% / 1.29%)] [11,525 / 314,608 (3.58%)]
-3.5C - -2.6C -3.5C - -2.6C = 5,743
[5,743 (1.69% / 1.78%)] [17,268 / 310,439 (5.36%)]
-2.5C - -1.6C -2.5C - -1.6C = 7,265
[7,265 (2.14% / 2.26%)] [24,533 / 304,696 (7.62%)]
-1.5C - -0.6C -1.5C - -0.6C = 9,093
[9,093 (2.68% / 2.82%)] [33,626 / 297,431 (10.44%)]
-0.5C - 0.4C -0.5C - 0.4C = 21,677
[21,677 (6.38% / 6.73%)] [55,303 / 288,338 (17.18%)]
0.5C - 1.4C 0.5C - 1.4C = 11,323
[11,323 (3.33% / 3.52%)] [66,626 / 266,661 (20.69%)]
1.5C - 2.4C 1.5C - 2.4C = 10,927
[10,927 (3.22% / 3.39%)] [77,553 / 255,338 (24.09%)]
2.5C - 3.4C 2.5C - 3.4C = 10,093
[10,093 (2.97% / 3.13%)] [87,646 / 244,411 (27.22%)]
3.5C - 4.4C 3.5C - 4.4C = 9,849
[9,849 (2.90% / 3.06%)] [97,495 / 234,318 (30.28%)]
4.5C - 5.4C 4.5C - 5.4C = 9,295
[9,295 (2.74% / 2.89%)] [106,790 / 224,469 (33.17%)]
5.5C - 6.4C 5.5C - 6.4C = 9,121
[9,121 (2.68% / 2.83%)] [115,911 / 215,174 (36.00%)]
6.5C - 7.4C 6.5C - 7.4C = 8,972
[8,972 (2.64% / 2.79%)] [124,883 / 206,053 (38.79%)]
7.5C - 8.4C 7.5C - 8.4C = 8,984
[8,984 (2.64% / 2.79%)] [133,867 / 197,081 (41.58%)]
8.5C - 9.4C 8.5C - 9.4C = 9,199
[9,199 (2.71% / 2.86%)] [143,066 / 188,097 (44.44%)]
9.5C - 10.4C 9.5C - 10.4C = 9,384
[9,384 (2.76% / 2.91%)] [152,450 / 178,898 (47.35%)]
10.5C - 11.4C 10.5C - 11.4C = 9,731
[9,731 (2.86% / 3.02%)] [162,181 / 169,514 (50.37%)]
11.5C - 12.4C 11.5C - 12.4C = 9,883
[9,883 (2.91% / 3.07%)] [172,064 / 159,783 (53.44%)]
12.5C - 13.4C 12.5C - 13.4C = 9,896
[9,896 (2.91% / 3.07%)] [181,960 / 149,900 (56.52%)]
13.5C - 14.4C 13.5C - 14.4C = 10,049
[10,049 (2.96% / 3.12%)] [192,009 / 140,004 (59.64%)]
14.5C - 15.4C 14.5C - 15.4C = 10,166
[10,166 (2.99% / 3.16%)] [202,175 / 129,955 (62.79%)]
15.5C - 16.4C 15.5C - 16.4C = 10,598
[10,598 (3.12% / 3.29%)] [212,773 / 119,789 (66.09%)]
16.5C - 17.4C 16.5C - 17.4C = 11,039
[11,039 (3.25% / 3.43%)] [223,812 / 109,191 (69.51%)]
17.5C - 18.4C 17.5C - 18.4C = 11,891
[11,891 (3.50% / 3.69%)] [235,703 / 98,152 (73.21%)]
18.5C - 19.4C 18.5C - 19.4C = 13,058
[13,058 (3.84% / 4.06%)] [248,761 / 86,261 (77.26%)]
19.5C - 20.4C 19.5C - 20.4C = 14,186
[14,186 (4.18% / 4.41%)] [262,947 / 73,203 (81.67%)]
20.5C - 21.4C 20.5C - 21.4C = 13,344
[13,344 (3.93% / 4.14%)] [276,291 / 59,017 (85.81%)]
21.5C - 22.4C 21.5C - 22.4C = 10,584
[10,584 (3.12% / 3.29%)] [286,875 / 45,673 (89.10%)]
22.5C - 23.4C 22.5C - 23.4C = 7,985
[7,985 (2.35% / 2.48%)] [294,860 / 35,089 (91.58%)]
23.5C - 24.4C 23.5C - 24.4C = 6,283
[6,283 (1.85% / 1.95%)] [301,143 / 27,104 (93.53%)]
24.5C - 25.4C 24.5C - 25.4C = 5,126
[5,126 (1.51% / 1.59%)] [306,269 / 20,821 (95.13%)]
25.5C - 26.4C 25.5C - 26.4C = 4,156
[4,156 (1.22% / 1.29%)] [310,425 / 15,695 (96.42%)]
26.5C - 27.4C 26.5C - 27.4C = 3,414
[3,414 (1.00% / 1.06%)] [313,839 / 11,539 (97.48%)]
27.5C - 28.4C 27.5C - 28.4C = 2,680
[2,680 (0.79% / 0.83%)] [316,519 / 8,125 (98.31%)]
28.5C - 29.4C 28.5C - 29.4C = 2,120
[2,120 (0.62% / 0.66%)] [318,639 / 5,445 (98.97%)]
29.5C - 30.4C 29.5C - 30.4C = 1,536
[1,536 (0.45% / 0.48%)] [320,175 / 3,325 (99.44%)]
30.5C - 31.4C 30.5C - 31.4C = 981
[981 (0.29% / 0.30%)] [321,156 / 1,789 (99.75%)]
31.5C - 32.4C 31.5C - 32.4C = 540
[540 (0.16% / 0.17%)] [321,696 / 808 (99.92%)]
32.5C - 33.4C 32.5C - 33.4C = 213
[213 (0.06% / 0.07%)] [321,909 / 268 (99.98%)]
33.5C - 34.4C 33.5C - 34.4C = 51
[51 (0.02% / 0.02%)] [321,960 / 55 (100.00%)]
34.5C - 35.4C 34.5C - 35.4C = 3
[3 (0.00% / 0.00%)] [321,963 / 4 (100.00%)]
35.5C - 36.4C 35.5C - 36.4C = 1
[1 (0.00% / 0.00%)] [321,964 / 1 (100.00%)]

Missing observations (17,770 / 5.23%)

Sunshine Duration

0.0h 0.0h = 221,627
[221,627 (65.24% / 68.83%)] [221,627 / 321,985 (68.83%)]
0.1h 0.1h = 7,280
[7,280 (2.14% / 2.26%)] [228,907 / 100,358 (71.09%)]
0.2h 0.2h = 5,393
[5,393 (1.59% / 1.67%)] [234,300 / 93,078 (72.77%)]
0.3h 0.3h = 4,829
[4,829 (1.42% / 1.50%)] [239,129 / 87,685 (74.27%)]
0.4h 0.4h = 4,587
[4,587 (1.35% / 1.42%)] [243,716 / 82,856 (75.69%)]
0.5h 0.5h = 4,493
[4,493 (1.32% / 1.40%)] [248,209 / 78,269 (77.09%)]
0.6h 0.6h = 4,743
[4,743 (1.40% / 1.47%)] [252,952 / 73,776 (78.56%)]
0.7h 0.7h = 4,801
[4,801 (1.41% / 1.49%)] [257,753 / 69,033 (80.05%)]
0.8h 0.8h = 5,771
[5,771 (1.70% / 1.79%)] [263,524 / 64,232 (81.84%)]
0.9h 0.9h = 6,999
[6,999 (2.06% / 2.17%)] [270,523 / 58,461 (84.02%)]
1.0h 1.0h = 51,462
[51,462 (15.15% / 15.98%)] [321,985 / 51,462 (100.00%)]

Missing observations (17,749 / 5.22%)