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 488
Number of Observations 356,496
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 -- 2016/08/99 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 = 330,119
[330,119 (92.60% / 92.84%)] [330,119 / 355,585 (92.84%)]
0.5mm - 1.4mm 0.5mm - 1.4mm = 13,024
[13,024 (3.65% / 3.66%)] [343,143 / 25,466 (96.50%)]
1.5mm - 2.4mm 1.5mm - 2.4mm = 4,845
[4,845 (1.36% / 1.36%)] [347,988 / 12,442 (97.86%)]
2.5mm - 3.4mm 2.5mm - 3.4mm = 2,458
[2,458 (0.69% / 0.69%)] [350,446 / 7,597 (98.55%)]
3.5mm - 4.4mm 3.5mm - 4.4mm = 1,434
[1,434 (0.40% / 0.40%)] [351,880 / 5,139 (98.96%)]
4.5mm - 5.4mm 4.5mm - 5.4mm = 971
[971 (0.27% / 0.27%)] [352,851 / 3,705 (99.23%)]
5.5mm - 6.4mm 5.5mm - 6.4mm = 636
[636 (0.18% / 0.18%)] [353,487 / 2,734 (99.41%)]
6.5mm - 7.4mm 6.5mm - 7.4mm = 455
[455 (0.13% / 0.13%)] [353,942 / 2,098 (99.54%)]
7.5mm - 8.4mm 7.5mm - 8.4mm = 362
[362 (0.10% / 0.10%)] [354,304 / 1,643 (99.64%)]
8.5mm - 9.4mm 8.5mm - 9.4mm = 248
[248 (0.07% / 0.07%)] [354,552 / 1,281 (99.71%)]
9.5mm - 10.4mm 9.5mm - 10.4mm = 192
[192 (0.05% / 0.05%)] [354,744 / 1,033 (99.76%)]
10.5mm - 11.4mm 10.5mm - 11.4mm = 169
[169 (0.05% / 0.05%)] [354,913 / 841 (99.81%)]
11.5mm - 12.4mm 11.5mm - 12.4mm = 113
[113 (0.03% / 0.03%)] [355,026 / 672 (99.84%)]
12.5mm - 13.4mm 12.5mm - 13.4mm = 90
[90 (0.03% / 0.03%)] [355,116 / 559 (99.87%)]
13.5mm - 14.4mm 13.5mm - 14.4mm = 76
[76 (0.02% / 0.02%)] [355,192 / 469 (99.89%)]
14.5mm - 15.4mm 14.5mm - 15.4mm = 52
[52 (0.01% / 0.01%)] [355,244 / 393 (99.90%)]
15.5mm - 16.4mm 15.5mm - 16.4mm = 61
[61 (0.02% / 0.02%)] [355,305 / 341 (99.92%)]
16.5mm - 17.4mm 16.5mm - 17.4mm = 41
[41 (0.01% / 0.01%)] [355,346 / 280 (99.93%)]
17.5mm - 18.4mm 17.5mm - 18.4mm = 40
[40 (0.01% / 0.01%)] [355,386 / 239 (99.94%)]
18.5mm - 19.4mm 18.5mm - 19.4mm = 25
[25 (0.01% / 0.01%)] [355,411 / 199 (99.95%)]
19.5mm - 20.4mm 19.5mm - 20.4mm = 21
[21 (0.01% / 0.01%)] [355,432 / 174 (99.96%)]
20.5mm - 21.4mm 20.5mm - 21.4mm = 19
[19 (0.01% / 0.01%)] [355,451 / 153 (99.96%)]
21.5mm - 22.4mm 21.5mm - 22.4mm = 23
[23 (0.01% / 0.01%)] [355,474 / 134 (99.97%)]
22.5mm - 23.4mm 22.5mm - 23.4mm = 13
[13 (0.00% / 0.00%)] [355,487 / 111 (99.97%)]
23.5mm - 24.4mm 23.5mm - 24.4mm = 10
[10 (0.00% / 0.00%)] [355,497 / 98 (99.98%)]
24.5mm - 25.4mm 24.5mm - 25.4mm = 4
[4 (0.00% / 0.00%)] [355,501 / 88 (99.98%)]
25.5mm - 26.4mm 25.5mm - 26.4mm = 10
[10 (0.00% / 0.00%)] [355,511 / 84 (99.98%)]
26.5mm - 27.4mm 26.5mm - 27.4mm = 12
[12 (0.00% / 0.00%)] [355,523 / 74 (99.98%)]
27.5mm - 28.4mm 27.5mm - 28.4mm = 9
[9 (0.00% / 0.00%)] [355,532 / 62 (99.99%)]
28.5mm - 29.4mm 28.5mm - 29.4mm = 6
[6 (0.00% / 0.00%)] [355,538 / 53 (99.99%)]
29.5mm - 30.4mm 29.5mm - 30.4mm = 4
[4 (0.00% / 0.00%)] [355,542 / 47 (99.99%)]
30.5mm - 31.4mm 30.5mm - 31.4mm = 4
[4 (0.00% / 0.00%)] [355,546 / 43 (99.99%)]
31.5mm - 32.4mm 31.5mm - 32.4mm = 4
[4 (0.00% / 0.00%)] [355,550 / 39 (99.99%)]
32.5mm - 33.4mm 32.5mm - 33.4mm = 3
[3 (0.00% / 0.00%)] [355,553 / 35 (99.99%)]
33.5mm - 34.4mm 33.5mm - 34.4mm = 4
[4 (0.00% / 0.00%)] [355,557 / 32 (99.99%)]
34.5mm - 35.4mm 34.5mm - 35.4mm = 2
[2 (0.00% / 0.00%)] [355,559 / 28 (99.99%)]
35.5mm - 36.4mm 35.5mm - 36.4mm = 1
[1 (0.00% / 0.00%)] [355,560 / 26 (99.99%)]
36.5mm - 37.4mm 36.5mm - 37.4mm = 3
[3 (0.00% / 0.00%)] [355,563 / 25 (99.99%)]
37.5mm - 38.4mm 37.5mm - 38.4mm = 2
[2 (0.00% / 0.00%)] [355,565 / 22 (99.99%)]
38.5mm - 39.4mm 38.5mm - 39.4mm = 4
[4 (0.00% / 0.00%)] [355,569 / 20 (100.00%)]
39.5mm - 40.4mm 39.5mm - 40.4mm = 2
[2 (0.00% / 0.00%)] [355,571 / 16 (100.00%)]
40.5mm - 41.4mm 40.5mm - 41.4mm = 1
[1 (0.00% / 0.00%)] [355,572 / 14 (100.00%)]
42.5mm - 43.4mm 42.5mm - 43.4mm = 2
[2 (0.00% / 0.00%)] [355,574 / 13 (100.00%)]
43.5mm - 44.4mm 43.5mm - 44.4mm = 1
[1 (0.00% / 0.00%)] [355,575 / 11 (100.00%)]
47.5mm - 48.4mm 47.5mm - 48.4mm = 1
[1 (0.00% / 0.00%)] [355,576 / 10 (100.00%)]
49.5mm - 50.4mm 49.5mm - 50.4mm = 1
[1 (0.00% / 0.00%)] [355,577 / 9 (100.00%)]
50.5mm - 51.4mm 50.5mm - 51.4mm = 2
[2 (0.00% / 0.00%)] [355,579 / 8 (100.00%)]
51.5mm - 52.4mm 51.5mm - 52.4mm = 1
[1 (0.00% / 0.00%)] [355,580 / 6 (100.00%)]
53.5mm - 54.4mm 53.5mm - 54.4mm = 1
[1 (0.00% / 0.00%)] [355,581 / 5 (100.00%)]
54.5mm - 55.4mm 54.5mm - 55.4mm = 1
[1 (0.00% / 0.00%)] [355,582 / 4 (100.00%)]
55.5mm - 56.4mm 55.5mm - 56.4mm = 1
[1 (0.00% / 0.00%)] [355,583 / 3 (100.00%)]
59.5mm - 60.4mm 59.5mm - 60.4mm = 2
[2 (0.00% / 0.00%)] [355,585 / 2 (100.00%)]

Missing observations (911 / 0.26%)

Wind Direction

Calm Calm = 56,061
[56,061 (15.73% / 16.59%)] [0 / 0 (NA)]
NNE NNE = 27,183
[27,183 (7.63% / 8.05%)] [0 / 0 (NA)]
NE NE = 16,676
[16,676 (4.68% / 4.94%)] [0 / 0 (NA)]
ENE ENE = 16,086
[16,086 (4.51% / 4.76%)] [0 / 0 (NA)]
E E = 10,453
[10,453 (2.93% / 3.09%)] [0 / 0 (NA)]
ESE ESE = 7,819
[7,819 (2.19% / 2.31%)] [0 / 0 (NA)]
SE SE = 8,849
[8,849 (2.48% / 2.62%)] [0 / 0 (NA)]
SSE SSE = 13,560
[13,560 (3.80% / 4.01%)] [0 / 0 (NA)]
S S = 18,319
[18,319 (5.14% / 5.42%)] [0 / 0 (NA)]
SSW SSW = 19,350
[19,350 (5.43% / 5.73%)] [0 / 0 (NA)]
SW SW = 16,453
[16,453 (4.62% / 4.87%)] [0 / 0 (NA)]
WSW WSW = 7,652
[7,652 (2.15% / 2.27%)] [0 / 0 (NA)]
W W = 8,472
[8,472 (2.38% / 2.51%)] [0 / 0 (NA)]
WNW WNW = 22,895
[22,895 (6.42% / 6.78%)] [0 / 0 (NA)]
NW NW = 27,960
[27,960 (7.84% / 8.28%)] [0 / 0 (NA)]
NNW NNW = 26,162
[26,162 (7.34% / 7.74%)] [0 / 0 (NA)]
N N = 33,876
[33,876 (9.50% / 10.03%)] [0 / 0 (NA)]

Missing observations (18,670 / 5.24%)

Wind Speed

0.0m/s - 0.4m/s 0.0m/s - 0.4m/s = 58,798
[58,798 (16.49% / 17.40%)] [58,798 / 337,987 (17.40%)]
0.5m/s - 1.4m/s 0.5m/s - 1.4m/s = 111,625
[111,625 (31.31% / 33.03%)] [170,423 / 279,189 (50.42%)]
1.5m/s - 2.4m/s 1.5m/s - 2.4m/s = 94,436
[94,436 (26.49% / 27.94%)] [264,859 / 167,564 (78.36%)]
2.5m/s - 3.4m/s 2.5m/s - 3.4m/s = 46,144
[46,144 (12.94% / 13.65%)] [311,003 / 73,128 (92.02%)]
3.5m/s - 4.4m/s 3.5m/s - 4.4m/s = 17,533
[17,533 (4.92% / 5.19%)] [328,536 / 26,984 (97.20%)]
4.5m/s - 5.4m/s 4.5m/s - 5.4m/s = 6,272
[6,272 (1.76% / 1.86%)] [334,808 / 9,451 (99.06%)]
5.5m/s - 6.4m/s 5.5m/s - 6.4m/s = 2,139
[2,139 (0.60% / 0.63%)] [336,947 / 3,179 (99.69%)]
6.5m/s - 7.4m/s 6.5m/s - 7.4m/s = 729
[729 (0.20% / 0.22%)] [337,676 / 1,040 (99.91%)]
7.5m/s - 8.4m/s 7.5m/s - 8.4m/s = 211
[211 (0.06% / 0.06%)] [337,887 / 311 (99.97%)]
8.5m/s - 9.4m/s 8.5m/s - 9.4m/s = 65
[65 (0.02% / 0.02%)] [337,952 / 100 (99.99%)]
9.5m/s - 10.4m/s 9.5m/s - 10.4m/s = 22
[22 (0.01% / 0.01%)] [337,974 / 35 (100.00%)]
10.5m/s - 11.4m/s 10.5m/s - 11.4m/s = 8
[8 (0.00% / 0.00%)] [337,982 / 13 (100.00%)]
11.5m/s - 12.4m/s 11.5m/s - 12.4m/s = 3
[3 (0.00% / 0.00%)] [337,985 / 5 (100.00%)]
13.5m/s - 14.4m/s 13.5m/s - 14.4m/s = 1
[1 (0.00% / 0.00%)] [337,986 / 2 (100.00%)]
15.5m/s - 16.4m/s 15.5m/s - 16.4m/s = 1
[1 (0.00% / 0.00%)] [337,987 / 1 (100.00%)]

Missing observations (18,509 / 5.19%)

Temperature

-7.5C - -6.6C -7.5C - -6.6C = 2
[2 (0.00% / 0.00%)] [2 / 337,884 (0.00%)]
-6.5C - -5.6C -6.5C - -5.6C = 13
[13 (0.00% / 0.00%)] [15 / 337,882 (0.00%)]
-5.5C - -4.6C -5.5C - -4.6C = 42
[42 (0.01% / 0.01%)] [57 / 337,869 (0.02%)]
-4.5C - -3.6C -4.5C - -3.6C = 106
[106 (0.03% / 0.03%)] [163 / 337,827 (0.05%)]
-3.5C - -2.6C -3.5C - -2.6C = 293
[293 (0.08% / 0.09%)] [456 / 337,721 (0.13%)]
-2.5C - -1.6C -2.5C - -1.6C = 714
[714 (0.20% / 0.21%)] [1,170 / 337,428 (0.35%)]
-1.5C - -0.6C -1.5C - -0.6C = 1,572
[1,572 (0.44% / 0.47%)] [2,742 / 336,714 (0.81%)]
-0.5C - 0.4C -0.5C - 0.4C = 6,259
[6,259 (1.76% / 1.85%)] [9,001 / 335,142 (2.66%)]
0.5C - 1.4C 0.5C - 1.4C = 5,433
[5,433 (1.52% / 1.61%)] [14,434 / 328,883 (4.27%)]
1.5C - 2.4C 1.5C - 2.4C = 6,856
[6,856 (1.92% / 2.03%)] [21,290 / 323,450 (6.30%)]
2.5C - 3.4C 2.5C - 3.4C = 8,187
[8,187 (2.30% / 2.42%)] [29,477 / 316,594 (8.72%)]
3.5C - 4.4C 3.5C - 4.4C = 9,421
[9,421 (2.64% / 2.79%)] [38,898 / 308,407 (11.51%)]
4.5C - 5.4C 4.5C - 5.4C = 10,465
[10,465 (2.94% / 3.10%)] [49,363 / 298,986 (14.61%)]
5.5C - 6.4C 5.5C - 6.4C = 10,890
[10,890 (3.05% / 3.22%)] [60,253 / 288,521 (17.83%)]
6.5C - 7.4C 6.5C - 7.4C = 11,519
[11,519 (3.23% / 3.41%)] [71,772 / 277,631 (21.24%)]
7.5C - 8.4C 7.5C - 8.4C = 11,641
[11,641 (3.27% / 3.45%)] [83,413 / 266,112 (24.69%)]
8.5C - 9.4C 8.5C - 9.4C = 11,840
[11,840 (3.32% / 3.50%)] [95,253 / 254,471 (28.19%)]
9.5C - 10.4C 9.5C - 10.4C = 11,818
[11,818 (3.32% / 3.50%)] [107,071 / 242,631 (31.69%)]
10.5C - 11.4C 10.5C - 11.4C = 11,186
[11,186 (3.14% / 3.31%)] [118,257 / 230,813 (35.00%)]
11.5C - 12.4C 11.5C - 12.4C = 11,228
[11,228 (3.15% / 3.32%)] [129,485 / 219,627 (38.32%)]
12.5C - 13.4C 12.5C - 13.4C = 10,914
[10,914 (3.06% / 3.23%)] [140,399 / 208,399 (41.55%)]
13.5C - 14.4C 13.5C - 14.4C = 11,543
[11,543 (3.24% / 3.42%)] [151,942 / 197,485 (44.97%)]
14.5C - 15.4C 14.5C - 15.4C = 11,968
[11,968 (3.36% / 3.54%)] [163,910 / 185,942 (48.51%)]
15.5C - 16.4C 15.5C - 16.4C = 12,317
[12,317 (3.46% / 3.65%)] [176,227 / 173,974 (52.16%)]
16.5C - 17.4C 16.5C - 17.4C = 13,197
[13,197 (3.70% / 3.91%)] [189,424 / 161,657 (56.06%)]
17.5C - 18.4C 17.5C - 18.4C = 13,952
[13,952 (3.91% / 4.13%)] [203,376 / 148,460 (60.19%)]
18.5C - 19.4C 18.5C - 19.4C = 14,259
[14,259 (4.00% / 4.22%)] [217,635 / 134,508 (64.41%)]
19.5C - 20.4C 19.5C - 20.4C = 14,242
[14,242 (3.99% / 4.22%)] [231,877 / 120,249 (68.63%)]
20.5C - 21.4C 20.5C - 21.4C = 14,222
[14,222 (3.99% / 4.21%)] [246,099 / 106,007 (72.84%)]
21.5C - 22.4C 21.5C - 22.4C = 13,272
[13,272 (3.72% / 3.93%)] [259,371 / 91,785 (76.76%)]
22.5C - 23.4C 22.5C - 23.4C = 13,217
[13,217 (3.71% / 3.91%)] [272,588 / 78,513 (80.68%)]
23.5C - 24.4C 23.5C - 24.4C = 12,773
[12,773 (3.58% / 3.78%)] [285,361 / 65,296 (84.46%)]
24.5C - 25.4C 24.5C - 25.4C = 12,094
[12,094 (3.39% / 3.58%)] [297,455 / 52,523 (88.03%)]
25.5C - 26.4C 25.5C - 26.4C = 10,326
[10,326 (2.90% / 3.06%)] [307,781 / 40,429 (91.09%)]
26.5C - 27.4C 26.5C - 27.4C = 8,006
[8,006 (2.25% / 2.37%)] [315,787 / 30,103 (93.46%)]
27.5C - 28.4C 27.5C - 28.4C = 5,928
[5,928 (1.66% / 1.75%)] [321,715 / 22,097 (95.21%)]
28.5C - 29.4C 28.5C - 29.4C = 4,542
[4,542 (1.27% / 1.34%)] [326,257 / 16,169 (96.56%)]
29.5C - 30.4C 29.5C - 30.4C = 3,660
[3,660 (1.03% / 1.08%)] [329,917 / 11,627 (97.64%)]
30.5C - 31.4C 30.5C - 31.4C = 2,934
[2,934 (0.82% / 0.87%)] [332,851 / 7,967 (98.51%)]
31.5C - 32.4C 31.5C - 32.4C = 2,238
[2,238 (0.63% / 0.66%)] [335,089 / 5,033 (99.17%)]
32.5C - 33.4C 32.5C - 33.4C = 1,508
[1,508 (0.42% / 0.45%)] [336,597 / 2,795 (99.62%)]
33.5C - 34.4C 33.5C - 34.4C = 786
[786 (0.22% / 0.23%)] [337,383 / 1,287 (99.85%)]
34.5C - 35.4C 34.5C - 35.4C = 350
[350 (0.10% / 0.10%)] [337,733 / 501 (99.96%)]
35.5C - 36.4C 35.5C - 36.4C = 117
[117 (0.03% / 0.03%)] [337,850 / 151 (99.99%)]
36.5C - 37.4C 36.5C - 37.4C = 24
[24 (0.01% / 0.01%)] [337,874 / 34 (100.00%)]
37.5C - 38.4C 37.5C - 38.4C = 10
[10 (0.00% / 0.00%)] [337,884 / 10 (100.00%)]

Missing observations (18,612 / 5.22%)

Sunshine Duration

0.0h 0.0h = 241,488
[241,488 (67.74% / 71.46%)] [241,488 / 337,928 (71.46%)]
0.1h 0.1h = 7,511
[7,511 (2.11% / 2.22%)] [248,999 / 96,440 (73.68%)]
0.2h 0.2h = 5,646
[5,646 (1.58% / 1.67%)] [254,645 / 88,929 (75.35%)]
0.3h 0.3h = 5,008
[5,008 (1.40% / 1.48%)] [259,653 / 83,283 (76.84%)]
0.4h 0.4h = 4,762
[4,762 (1.34% / 1.41%)] [264,415 / 78,275 (78.25%)]
0.5h 0.5h = 5,122
[5,122 (1.44% / 1.52%)] [269,537 / 73,513 (79.76%)]
0.6h 0.6h = 5,070
[5,070 (1.42% / 1.50%)] [274,607 / 68,391 (81.26%)]
0.7h 0.7h = 5,313
[5,313 (1.49% / 1.57%)] [279,920 / 63,321 (82.83%)]
0.8h 0.8h = 5,982
[5,982 (1.68% / 1.77%)] [285,902 / 58,008 (84.60%)]
0.9h 0.9h = 7,741
[7,741 (2.17% / 2.29%)] [293,643 / 52,026 (86.90%)]
1.0h 1.0h = 44,285
[44,285 (12.42% / 13.10%)] [337,928 / 44,285 (100.00%)]

Missing observations (18,568 / 5.21%)