Station Number 45261
Prefecture Chiba [ Local Portal ]
Location 千葉県茂原市早野字川中島 (MOBARA SHI, CHIBA KEN)
Months of Observations 476
Number of Observations 347,712
Period of Observations
Period Name Lat. Long. Height Anemometer
1974/11/01 -- 1978/01/10 MOBARA 35.417N 140.310E 9m 0.0m
1978/01/11 -- 1986/06/26 MOBARA 35.417N 140.310E 9m 6.5m
1986/06/27 -- 2008/02/07 MOBARA 35.417N 140.310E 9m 6.5m
2008/02/08 -- 2010/02/28 MOBARA 35.417N 140.310E 9m 6.5m
2010/03/01 -- 2015/08/99 MOBARA 35.417N 140.310E 9m 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
45291 USHIKU (Chiba) 14.88km 261deg.
45331 OOTAKI (Chiba) 20.24km 205deg.
45211 CHIBA (Chiba) 26.39km 318deg.
45212 CHIBA (Chiba) 27.82km 317deg.
45905 (Chiba) 27.82km 317deg.
45326 SAKAHATA (Chiba) 27.92km 223deg.
45371 KATSUURA (Chiba) 29.62km 179deg.

Statistics for the Whole Period

Precipitation

0.0mm - 0.4mm 0.0mm - 0.4mm = 322,092
[322,092 (92.63% / 92.87%)] [322,092 / 346,803 (92.87%)]
0.5mm - 1.4mm 0.5mm - 1.4mm = 12,628
[12,628 (3.63% / 3.64%)] [334,720 / 24,711 (96.52%)]
1.5mm - 2.4mm 1.5mm - 2.4mm = 4,709
[4,709 (1.35% / 1.36%)] [339,429 / 12,083 (97.87%)]
2.5mm - 3.4mm 2.5mm - 3.4mm = 2,396
[2,396 (0.69% / 0.69%)] [341,825 / 7,374 (98.56%)]
3.5mm - 4.4mm 3.5mm - 4.4mm = 1,403
[1,403 (0.40% / 0.40%)] [343,228 / 4,978 (98.97%)]
4.5mm - 5.4mm 4.5mm - 5.4mm = 937
[937 (0.27% / 0.27%)] [344,165 / 3,575 (99.24%)]
5.5mm - 6.4mm 5.5mm - 6.4mm = 614
[614 (0.18% / 0.18%)] [344,779 / 2,638 (99.42%)]
6.5mm - 7.4mm 6.5mm - 7.4mm = 437
[437 (0.13% / 0.13%)] [345,216 / 2,024 (99.54%)]
7.5mm - 8.4mm 7.5mm - 8.4mm = 352
[352 (0.10% / 0.10%)] [345,568 / 1,587 (99.64%)]
8.5mm - 9.4mm 8.5mm - 9.4mm = 239
[239 (0.07% / 0.07%)] [345,807 / 1,235 (99.71%)]
9.5mm - 10.4mm 9.5mm - 10.4mm = 182
[182 (0.05% / 0.05%)] [345,989 / 996 (99.77%)]
10.5mm - 11.4mm 10.5mm - 11.4mm = 163
[163 (0.05% / 0.05%)] [346,152 / 814 (99.81%)]
11.5mm - 12.4mm 11.5mm - 12.4mm = 106
[106 (0.03% / 0.03%)] [346,258 / 651 (99.84%)]
12.5mm - 13.4mm 12.5mm - 13.4mm = 90
[90 (0.03% / 0.03%)] [346,348 / 545 (99.87%)]
13.5mm - 14.4mm 13.5mm - 14.4mm = 73
[73 (0.02% / 0.02%)] [346,421 / 455 (99.89%)]
14.5mm - 15.4mm 14.5mm - 15.4mm = 50
[50 (0.01% / 0.01%)] [346,471 / 382 (99.90%)]
15.5mm - 16.4mm 15.5mm - 16.4mm = 58
[58 (0.02% / 0.02%)] [346,529 / 332 (99.92%)]
16.5mm - 17.4mm 16.5mm - 17.4mm = 38
[38 (0.01% / 0.01%)] [346,567 / 274 (99.93%)]
17.5mm - 18.4mm 17.5mm - 18.4mm = 40
[40 (0.01% / 0.01%)] [346,607 / 236 (99.94%)]
18.5mm - 19.4mm 18.5mm - 19.4mm = 25
[25 (0.01% / 0.01%)] [346,632 / 196 (99.95%)]
19.5mm - 20.4mm 19.5mm - 20.4mm = 21
[21 (0.01% / 0.01%)] [346,653 / 171 (99.96%)]
20.5mm - 21.4mm 20.5mm - 21.4mm = 19
[19 (0.01% / 0.01%)] [346,672 / 150 (99.96%)]
21.5mm - 22.4mm 21.5mm - 22.4mm = 22
[22 (0.01% / 0.01%)] [346,694 / 131 (99.97%)]
22.5mm - 23.4mm 22.5mm - 23.4mm = 13
[13 (0.00% / 0.00%)] [346,707 / 109 (99.97%)]
23.5mm - 24.4mm 23.5mm - 24.4mm = 10
[10 (0.00% / 0.00%)] [346,717 / 96 (99.98%)]
24.5mm - 25.4mm 24.5mm - 25.4mm = 4
[4 (0.00% / 0.00%)] [346,721 / 86 (99.98%)]
25.5mm - 26.4mm 25.5mm - 26.4mm = 10
[10 (0.00% / 0.00%)] [346,731 / 82 (99.98%)]
26.5mm - 27.4mm 26.5mm - 27.4mm = 12
[12 (0.00% / 0.00%)] [346,743 / 72 (99.98%)]
27.5mm - 28.4mm 27.5mm - 28.4mm = 8
[8 (0.00% / 0.00%)] [346,751 / 60 (99.99%)]
28.5mm - 29.4mm 28.5mm - 29.4mm = 6
[6 (0.00% / 0.00%)] [346,757 / 52 (99.99%)]
29.5mm - 30.4mm 29.5mm - 30.4mm = 4
[4 (0.00% / 0.00%)] [346,761 / 46 (99.99%)]
30.5mm - 31.4mm 30.5mm - 31.4mm = 4
[4 (0.00% / 0.00%)] [346,765 / 42 (99.99%)]
31.5mm - 32.4mm 31.5mm - 32.4mm = 4
[4 (0.00% / 0.00%)] [346,769 / 38 (99.99%)]
32.5mm - 33.4mm 32.5mm - 33.4mm = 3
[3 (0.00% / 0.00%)] [346,772 / 34 (99.99%)]
33.5mm - 34.4mm 33.5mm - 34.4mm = 4
[4 (0.00% / 0.00%)] [346,776 / 31 (99.99%)]
34.5mm - 35.4mm 34.5mm - 35.4mm = 2
[2 (0.00% / 0.00%)] [346,778 / 27 (99.99%)]
35.5mm - 36.4mm 35.5mm - 36.4mm = 1
[1 (0.00% / 0.00%)] [346,779 / 25 (99.99%)]
36.5mm - 37.4mm 36.5mm - 37.4mm = 3
[3 (0.00% / 0.00%)] [346,782 / 24 (99.99%)]
37.5mm - 38.4mm 37.5mm - 38.4mm = 2
[2 (0.00% / 0.00%)] [346,784 / 21 (99.99%)]
38.5mm - 39.4mm 38.5mm - 39.4mm = 4
[4 (0.00% / 0.00%)] [346,788 / 19 (100.00%)]
39.5mm - 40.4mm 39.5mm - 40.4mm = 2
[2 (0.00% / 0.00%)] [346,790 / 15 (100.00%)]
40.5mm - 41.4mm 40.5mm - 41.4mm = 1
[1 (0.00% / 0.00%)] [346,791 / 13 (100.00%)]
42.5mm - 43.4mm 42.5mm - 43.4mm = 2
[2 (0.00% / 0.00%)] [346,793 / 12 (100.00%)]
43.5mm - 44.4mm 43.5mm - 44.4mm = 1
[1 (0.00% / 0.00%)] [346,794 / 10 (100.00%)]
47.5mm - 48.4mm 47.5mm - 48.4mm = 1
[1 (0.00% / 0.00%)] [346,795 / 9 (100.00%)]
49.5mm - 50.4mm 49.5mm - 50.4mm = 1
[1 (0.00% / 0.00%)] [346,796 / 8 (100.00%)]
50.5mm - 51.4mm 50.5mm - 51.4mm = 2
[2 (0.00% / 0.00%)] [346,798 / 7 (100.00%)]
53.5mm - 54.4mm 53.5mm - 54.4mm = 1
[1 (0.00% / 0.00%)] [346,799 / 5 (100.00%)]
54.5mm - 55.4mm 54.5mm - 55.4mm = 1
[1 (0.00% / 0.00%)] [346,800 / 4 (100.00%)]
55.5mm - 56.4mm 55.5mm - 56.4mm = 1
[1 (0.00% / 0.00%)] [346,801 / 3 (100.00%)]
59.5mm - 60.4mm 59.5mm - 60.4mm = 2
[2 (0.00% / 0.00%)] [346,803 / 2 (100.00%)]

Missing observations (909 / 0.26%)

Wind Direction

Calm Calm = 55,651
[55,651 (16.00% / 16.91%)] [0 / 0 (NA)]
NNE NNE = 26,249
[26,249 (7.55% / 7.98%)] [0 / 0 (NA)]
NE NE = 16,151
[16,151 (4.64% / 4.91%)] [0 / 0 (NA)]
ENE ENE = 15,624
[15,624 (4.49% / 4.75%)] [0 / 0 (NA)]
E E = 10,086
[10,086 (2.90% / 3.07%)] [0 / 0 (NA)]
ESE ESE = 7,508
[7,508 (2.16% / 2.28%)] [0 / 0 (NA)]
SE SE = 8,586
[8,586 (2.47% / 2.61%)] [0 / 0 (NA)]
SSE SSE = 13,142
[13,142 (3.78% / 3.99%)] [0 / 0 (NA)]
S S = 17,647
[17,647 (5.08% / 5.36%)] [0 / 0 (NA)]
SSW SSW = 18,775
[18,775 (5.40% / 5.71%)] [0 / 0 (NA)]
SW SW = 16,055
[16,055 (4.62% / 4.88%)] [0 / 0 (NA)]
WSW WSW = 7,435
[7,435 (2.14% / 2.26%)] [0 / 0 (NA)]
W W = 8,316
[8,316 (2.39% / 2.53%)] [0 / 0 (NA)]
WNW WNW = 22,488
[22,488 (6.47% / 6.83%)] [0 / 0 (NA)]
NW NW = 27,309
[27,309 (7.85% / 8.30%)] [0 / 0 (NA)]
NNW NNW = 25,263
[25,263 (7.27% / 7.68%)] [0 / 0 (NA)]
N N = 32,758
[32,758 (9.42% / 9.96%)] [0 / 0 (NA)]

Missing observations (18,669 / 5.37%)

Wind Speed

0.0m/s - 0.4m/s 0.0m/s - 0.4m/s = 58,085
[58,085 (16.70% / 17.64%)] [58,085 / 329,204 (17.64%)]
0.5m/s - 1.4m/s 0.5m/s - 1.4m/s = 109,013
[109,013 (31.35% / 33.11%)] [167,098 / 271,119 (50.76%)]
1.5m/s - 2.4m/s 1.5m/s - 2.4m/s = 91,496
[91,496 (26.31% / 27.79%)] [258,594 / 162,106 (78.55%)]
2.5m/s - 3.4m/s 2.5m/s - 3.4m/s = 44,567
[44,567 (12.82% / 13.54%)] [303,161 / 70,610 (92.09%)]
3.5m/s - 4.4m/s 3.5m/s - 4.4m/s = 16,918
[16,918 (4.87% / 5.14%)] [320,079 / 26,043 (97.23%)]
4.5m/s - 5.4m/s 4.5m/s - 5.4m/s = 6,073
[6,073 (1.75% / 1.84%)] [326,152 / 9,125 (99.07%)]
5.5m/s - 6.4m/s 5.5m/s - 6.4m/s = 2,057
[2,057 (0.59% / 0.62%)] [328,209 / 3,052 (99.70%)]
6.5m/s - 7.4m/s 6.5m/s - 7.4m/s = 699
[699 (0.20% / 0.21%)] [328,908 / 995 (99.91%)]
7.5m/s - 8.4m/s 7.5m/s - 8.4m/s = 204
[204 (0.06% / 0.06%)] [329,112 / 296 (99.97%)]
8.5m/s - 9.4m/s 8.5m/s - 9.4m/s = 59
[59 (0.02% / 0.02%)] [329,171 / 92 (99.99%)]
9.5m/s - 10.4m/s 9.5m/s - 10.4m/s = 21
[21 (0.01% / 0.01%)] [329,192 / 33 (100.00%)]
10.5m/s - 11.4m/s 10.5m/s - 11.4m/s = 8
[8 (0.00% / 0.00%)] [329,200 / 12 (100.00%)]
11.5m/s - 12.4m/s 11.5m/s - 12.4m/s = 2
[2 (0.00% / 0.00%)] [329,202 / 4 (100.00%)]
13.5m/s - 14.4m/s 13.5m/s - 14.4m/s = 1
[1 (0.00% / 0.00%)] [329,203 / 2 (100.00%)]
15.5m/s - 16.4m/s 15.5m/s - 16.4m/s = 1
[1 (0.00% / 0.00%)] [329,204 / 1 (100.00%)]

Missing observations (18,508 / 5.32%)

Temperature

-7.5C - -6.6C -7.5C - -6.6C = 2
[2 (0.00% / 0.00%)] [2 / 329,100 (0.00%)]
-6.5C - -5.6C -6.5C - -5.6C = 13
[13 (0.00% / 0.00%)] [15 / 329,098 (0.00%)]
-5.5C - -4.6C -5.5C - -4.6C = 42
[42 (0.01% / 0.01%)] [57 / 329,085 (0.02%)]
-4.5C - -3.6C -4.5C - -3.6C = 106
[106 (0.03% / 0.03%)] [163 / 329,043 (0.05%)]
-3.5C - -2.6C -3.5C - -2.6C = 289
[289 (0.08% / 0.09%)] [452 / 328,937 (0.14%)]
-2.5C - -1.6C -2.5C - -1.6C = 710
[710 (0.20% / 0.22%)] [1,162 / 328,648 (0.35%)]
-1.5C - -0.6C -1.5C - -0.6C = 1,558
[1,558 (0.45% / 0.47%)] [2,720 / 327,938 (0.83%)]
-0.5C - 0.4C -0.5C - 0.4C = 6,182
[6,182 (1.78% / 1.88%)] [8,902 / 326,380 (2.70%)]
0.5C - 1.4C 0.5C - 1.4C = 5,342
[5,342 (1.54% / 1.62%)] [14,244 / 320,198 (4.33%)]
1.5C - 2.4C 1.5C - 2.4C = 6,730
[6,730 (1.94% / 2.04%)] [20,974 / 314,856 (6.37%)]
2.5C - 3.4C 2.5C - 3.4C = 8,026
[8,026 (2.31% / 2.44%)] [29,000 / 308,126 (8.81%)]
3.5C - 4.4C 3.5C - 4.4C = 9,242
[9,242 (2.66% / 2.81%)] [38,242 / 300,100 (11.62%)]
4.5C - 5.4C 4.5C - 5.4C = 10,202
[10,202 (2.93% / 3.10%)] [48,444 / 290,858 (14.72%)]
5.5C - 6.4C 5.5C - 6.4C = 10,674
[10,674 (3.07% / 3.24%)] [59,118 / 280,656 (17.96%)]
6.5C - 7.4C 6.5C - 7.4C = 11,259
[11,259 (3.24% / 3.42%)] [70,377 / 269,982 (21.38%)]
7.5C - 8.4C 7.5C - 8.4C = 11,380
[11,380 (3.27% / 3.46%)] [81,757 / 258,723 (24.84%)]
8.5C - 9.4C 8.5C - 9.4C = 11,598
[11,598 (3.34% / 3.52%)] [93,355 / 247,343 (28.37%)]
9.5C - 10.4C 9.5C - 10.4C = 11,545
[11,545 (3.32% / 3.51%)] [104,900 / 235,745 (31.87%)]
10.5C - 11.4C 10.5C - 11.4C = 10,854
[10,854 (3.12% / 3.30%)] [115,754 / 224,200 (35.17%)]
11.5C - 12.4C 11.5C - 12.4C = 10,921
[10,921 (3.14% / 3.32%)] [126,675 / 213,346 (38.49%)]
12.5C - 13.4C 12.5C - 13.4C = 10,628
[10,628 (3.06% / 3.23%)] [137,303 / 202,425 (41.72%)]
13.5C - 14.4C 13.5C - 14.4C = 11,207
[11,207 (3.22% / 3.41%)] [148,510 / 191,797 (45.13%)]
14.5C - 15.4C 14.5C - 15.4C = 11,633
[11,633 (3.35% / 3.53%)] [160,143 / 180,590 (48.66%)]
15.5C - 16.4C 15.5C - 16.4C = 11,993
[11,993 (3.45% / 3.64%)] [172,136 / 168,957 (52.31%)]
16.5C - 17.4C 16.5C - 17.4C = 12,830
[12,830 (3.69% / 3.90%)] [184,966 / 156,964 (56.20%)]
17.5C - 18.4C 17.5C - 18.4C = 13,567
[13,567 (3.90% / 4.12%)] [198,533 / 144,134 (60.33%)]
18.5C - 19.4C 18.5C - 19.4C = 13,923
[13,923 (4.00% / 4.23%)] [212,456 / 130,567 (64.56%)]
19.5C - 20.4C 19.5C - 20.4C = 13,861
[13,861 (3.99% / 4.21%)] [226,317 / 116,644 (68.77%)]
20.5C - 21.4C 20.5C - 21.4C = 13,790
[13,790 (3.97% / 4.19%)] [240,107 / 102,783 (72.96%)]
21.5C - 22.4C 21.5C - 22.4C = 12,805
[12,805 (3.68% / 3.89%)] [252,912 / 88,993 (76.85%)]
22.5C - 23.4C 22.5C - 23.4C = 12,793
[12,793 (3.68% / 3.89%)] [265,705 / 76,188 (80.74%)]
23.5C - 24.4C 23.5C - 24.4C = 12,399
[12,399 (3.57% / 3.77%)] [278,104 / 63,395 (84.50%)]
24.5C - 25.4C 24.5C - 25.4C = 11,715
[11,715 (3.37% / 3.56%)] [289,819 / 50,996 (88.06%)]
25.5C - 26.4C 25.5C - 26.4C = 9,978
[9,978 (2.87% / 3.03%)] [299,797 / 39,281 (91.10%)]
26.5C - 27.4C 26.5C - 27.4C = 7,733
[7,733 (2.22% / 2.35%)] [307,530 / 29,303 (93.45%)]
27.5C - 28.4C 27.5C - 28.4C = 5,768
[5,768 (1.66% / 1.75%)] [313,298 / 21,570 (95.20%)]
28.5C - 29.4C 28.5C - 29.4C = 4,414
[4,414 (1.27% / 1.34%)] [317,712 / 15,802 (96.54%)]
29.5C - 30.4C 29.5C - 30.4C = 3,543
[3,543 (1.02% / 1.08%)] [321,255 / 11,388 (97.62%)]
30.5C - 31.4C 30.5C - 31.4C = 2,862
[2,862 (0.82% / 0.87%)] [324,117 / 7,845 (98.49%)]
31.5C - 32.4C 31.5C - 32.4C = 2,208
[2,208 (0.64% / 0.67%)] [326,325 / 4,983 (99.16%)]
32.5C - 33.4C 32.5C - 33.4C = 1,498
[1,498 (0.43% / 0.46%)] [327,823 / 2,775 (99.61%)]
33.5C - 34.4C 33.5C - 34.4C = 782
[782 (0.22% / 0.24%)] [328,605 / 1,277 (99.85%)]
34.5C - 35.4C 34.5C - 35.4C = 349
[349 (0.10% / 0.11%)] [328,954 / 495 (99.96%)]
35.5C - 36.4C 35.5C - 36.4C = 115
[115 (0.03% / 0.03%)] [329,069 / 146 (99.99%)]
36.5C - 37.4C 36.5C - 37.4C = 23
[23 (0.01% / 0.01%)] [329,092 / 31 (100.00%)]
37.5C - 38.4C 37.5C - 38.4C = 8
[8 (0.00% / 0.00%)] [329,100 / 8 (100.00%)]

Missing observations (18,612 / 5.35%)

Sunshine Duration

0.0h 0.0h = 235,304
[235,304 (67.67% / 71.49%)] [235,304 / 329,148 (71.49%)]
0.1h 0.1h = 7,277
[7,277 (2.09% / 2.21%)] [242,581 / 93,844 (73.70%)]
0.2h 0.2h = 5,486
[5,486 (1.58% / 1.67%)] [248,067 / 86,567 (75.37%)]
0.3h 0.3h = 4,867
[4,867 (1.40% / 1.48%)] [252,934 / 81,081 (76.85%)]
0.4h 0.4h = 4,616
[4,616 (1.33% / 1.40%)] [257,550 / 76,214 (78.25%)]
0.5h 0.5h = 4,990
[4,990 (1.44% / 1.52%)] [262,540 / 71,598 (79.76%)]
0.6h 0.6h = 4,931
[4,931 (1.42% / 1.50%)] [267,471 / 66,608 (81.26%)]
0.7h 0.7h = 5,160
[5,160 (1.48% / 1.57%)] [272,631 / 61,677 (82.83%)]
0.8h 0.8h = 5,795
[5,795 (1.67% / 1.76%)] [278,426 / 56,517 (84.59%)]
0.9h 0.9h = 7,499
[7,499 (2.16% / 2.28%)] [285,925 / 50,722 (86.87%)]
1.0h 1.0h = 43,223
[43,223 (12.43% / 13.13%)] [329,148 / 43,223 (100.00%)]

Missing observations (18,564 / 5.34%)