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 499
Number of Observations 364,512
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 -- 2017/07/99 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 = 337,558
[337,558 (92.61% / 92.84%)] [337,558 / 363,601 (92.84)]
0.5mm - 1.4mm 0.5mm - 1.4mm = 13,350
[13,350 (3.66% / 3.67%)] [350,908 / 26,043 (96.51)]
1.5mm - 2.4mm 1.5mm - 2.4mm = 4,945
[4,945 (1.36% / 1.36%)] [355,853 / 12,693 (97.87)]
2.5mm - 3.4mm 2.5mm - 3.4mm = 2,507
[2,507 (0.69% / 0.69%)] [358,360 / 7,748 (98.56)]
3.5mm - 4.4mm 3.5mm - 4.4mm = 1,460
[1,460 (0.40% / 0.40%)] [359,820 / 5,241 (98.96)]
4.5mm - 5.4mm 4.5mm - 5.4mm = 989
[989 (0.27% / 0.27%)] [360,809 / 3,781 (99.23)]
5.5mm - 6.4mm 5.5mm - 6.4mm = 653
[653 (0.18% / 0.18%)] [361,462 / 2,792 (99.41)]
6.5mm - 7.4mm 6.5mm - 7.4mm = 467
[467 (0.13% / 0.13%)] [361,929 / 2,139 (99.54)]
7.5mm - 8.4mm 7.5mm - 8.4mm = 366
[366 (0.10% / 0.10%)] [362,295 / 1,672 (99.64)]
8.5mm - 9.4mm 8.5mm - 9.4mm = 254
[254 (0.07% / 0.07%)] [362,549 / 1,306 (99.71)]
9.5mm - 10.4mm 9.5mm - 10.4mm = 195
[195 (0.05% / 0.05%)] [362,744 / 1,052 (99.76)]
10.5mm - 11.4mm 10.5mm - 11.4mm = 172
[172 (0.05% / 0.05%)] [362,916 / 857 (99.81)]
11.5mm - 12.4mm 11.5mm - 12.4mm = 117
[117 (0.03% / 0.03%)] [363,033 / 685 (99.84)]
12.5mm - 13.4mm 12.5mm - 13.4mm = 92
[92 (0.03% / 0.03%)] [363,125 / 568 (99.87)]
13.5mm - 14.4mm 13.5mm - 14.4mm = 76
[76 (0.02% / 0.02%)] [363,201 / 476 (99.89)]
14.5mm - 15.4mm 14.5mm - 15.4mm = 53
[53 (0.01% / 0.01%)] [363,254 / 400 (99.90)]
15.5mm - 16.4mm 15.5mm - 16.4mm = 62
[62 (0.02% / 0.02%)] [363,316 / 347 (99.92)]
16.5mm - 17.4mm 16.5mm - 17.4mm = 41
[41 (0.01% / 0.01%)] [363,357 / 285 (99.93)]
17.5mm - 18.4mm 17.5mm - 18.4mm = 40
[40 (0.01% / 0.01%)] [363,397 / 244 (99.94)]
18.5mm - 19.4mm 18.5mm - 19.4mm = 25
[25 (0.01% / 0.01%)] [363,422 / 204 (99.95)]
19.5mm - 20.4mm 19.5mm - 20.4mm = 22
[22 (0.01% / 0.01%)] [363,444 / 179 (99.96)]
20.5mm - 21.4mm 20.5mm - 21.4mm = 19
[19 (0.01% / 0.01%)] [363,463 / 157 (99.96)]
21.5mm - 22.4mm 21.5mm - 22.4mm = 24
[24 (0.01% / 0.01%)] [363,487 / 138 (99.97)]
22.5mm - 23.4mm 22.5mm - 23.4mm = 13
[13 (0.00% / 0.00%)] [363,500 / 114 (99.97)]
23.5mm - 24.4mm 23.5mm - 24.4mm = 11
[11 (0.00% / 0.00%)] [363,511 / 101 (99.98)]
24.5mm - 25.4mm 24.5mm - 25.4mm = 4
[4 (0.00% / 0.00%)] [363,515 / 90 (99.98)]
25.5mm - 26.4mm 25.5mm - 26.4mm = 10
[10 (0.00% / 0.00%)] [363,525 / 86 (99.98)]
26.5mm - 27.4mm 26.5mm - 27.4mm = 12
[12 (0.00% / 0.00%)] [363,537 / 76 (99.98)]
27.5mm - 28.4mm 27.5mm - 28.4mm = 9
[9 (0.00% / 0.00%)] [363,546 / 64 (99.98)]
28.5mm - 29.4mm 28.5mm - 29.4mm = 6
[6 (0.00% / 0.00%)] [363,552 / 55 (99.99)]
29.5mm - 30.4mm 29.5mm - 30.4mm = 5
[5 (0.00% / 0.00%)] [363,557 / 49 (99.99)]
30.5mm - 31.4mm 30.5mm - 31.4mm = 4
[4 (0.00% / 0.00%)] [363,561 / 44 (99.99)]
31.5mm - 32.4mm 31.5mm - 32.4mm = 4
[4 (0.00% / 0.00%)] [363,565 / 40 (99.99)]
32.5mm - 33.4mm 32.5mm - 33.4mm = 3
[3 (0.00% / 0.00%)] [363,568 / 36 (99.99)]
33.5mm - 34.4mm 33.5mm - 34.4mm = 4
[4 (0.00% / 0.00%)] [363,572 / 33 (99.99)]
34.5mm - 35.4mm 34.5mm - 35.4mm = 2
[2 (0.00% / 0.00%)] [363,574 / 29 (99.99)]
35.5mm - 36.4mm 35.5mm - 36.4mm = 1
[1 (0.00% / 0.00%)] [363,575 / 27 (99.99)]
36.5mm - 37.4mm 36.5mm - 37.4mm = 3
[3 (0.00% / 0.00%)] [363,578 / 26 (99.99)]
37.5mm - 38.4mm 37.5mm - 38.4mm = 2
[2 (0.00% / 0.00%)] [363,580 / 23 (99.99)]
38.5mm - 39.4mm 38.5mm - 39.4mm = 4
[4 (0.00% / 0.00%)] [363,584 / 21 (100.00)]
39.5mm - 40.4mm 39.5mm - 40.4mm = 2
[2 (0.00% / 0.00%)] [363,586 / 17 (100.00)]
40.5mm - 41.4mm 40.5mm - 41.4mm = 1
[1 (0.00% / 0.00%)] [363,587 / 15 (100.00)]
42.5mm - 43.4mm 42.5mm - 43.4mm = 2
[2 (0.00% / 0.00%)] [363,589 / 14 (100.00)]
43.5mm - 44.4mm 43.5mm - 44.4mm = 1
[1 (0.00% / 0.00%)] [363,590 / 12 (100.00)]
47.5mm - 48.4mm 47.5mm - 48.4mm = 1
[1 (0.00% / 0.00%)] [363,591 / 11 (100.00)]
48.5mm - 49.4mm 48.5mm - 49.4mm = 1
[1 (0.00% / 0.00%)] [363,592 / 10 (100.00)]
49.5mm - 50.4mm 49.5mm - 50.4mm = 1
[1 (0.00% / 0.00%)] [363,593 / 9 (100.00)]
50.5mm - 51.4mm 50.5mm - 51.4mm = 2
[2 (0.00% / 0.00%)] [363,595 / 8 (100.00)]
51.5mm - 52.4mm 51.5mm - 52.4mm = 1
[1 (0.00% / 0.00%)] [363,596 / 6 (100.00)]
53.5mm - 54.4mm 53.5mm - 54.4mm = 1
[1 (0.00% / 0.00%)] [363,597 / 5 (100.00)]
54.5mm - 55.4mm 54.5mm - 55.4mm = 1
[1 (0.00% / 0.00%)] [363,598 / 4 (100.00)]
55.5mm - 56.4mm 55.5mm - 56.4mm = 1
[1 (0.00% / 0.00%)] [363,599 / 3 (100.00)]
59.5mm - 60.4mm 59.5mm - 60.4mm = 2
[2 (0.00% / 0.00%)] [363,601 / 2 (100.00)]

Missing observations (911 / 0.25%)

Wind Direction

Calm Calm = 56,462
[56,462 (15.49% / 16.33%)]
NNE NNE = 27,784
[27,784 (7.62% / 8.03%)]
NE NE = 16,992
[16,992 (4.66% / 4.91%)]
ENE ENE = 16,423
[16,423 (4.51% / 4.75%)]
E E = 10,816
[10,816 (2.97% / 3.13%)]
ESE ESE = 8,085
[8,085 (2.22% / 2.34%)]
SE SE = 9,044
[9,044 (2.48% / 2.62%)]
SSE SSE = 13,863
[13,863 (3.80% / 4.01%)]
S S = 19,020
[19,020 (5.22% / 5.50%)]
SSW SSW = 19,953
[19,953 (5.47% / 5.77%)]
SW SW = 16,870
[16,870 (4.63% / 4.88%)]
WSW WSW = 7,838
[7,838 (2.15% / 2.27%)]
W W = 8,653
[8,653 (2.37% / 2.50%)]
WNW WNW = 23,379
[23,379 (6.41% / 6.76%)]
NW NW = 28,804
[28,804 (7.90% / 8.33%)]
NNW NNW = 27,188
[27,188 (7.46% / 7.86%)]
N N = 34,667
[34,667 (9.51% / 10.02%)]

Missing observations (18,671 / 5.12%)

Wind Speed

0.0m/s - 0.4m/s 0.0m/s - 0.4m/s = 59,511
[59,511 (16.33% / 17.20%)] [59,511 / 346,002 (17.20)]
0.5m/s - 1.4m/s 0.5m/s - 1.4m/s = 113,943
[113,943 (31.26% / 32.93%)] [173,454 / 286,491 (50.13)]
1.5m/s - 2.4m/s 1.5m/s - 2.4m/s = 96,991
[96,991 (26.61% / 28.03%)] [270,445 / 172,548 (78.16)]
2.5m/s - 3.4m/s 2.5m/s - 3.4m/s = 47,555
[47,555 (13.05% / 13.74%)] [318,000 / 75,557 (91.91)]
3.5m/s - 4.4m/s 3.5m/s - 4.4m/s = 18,155
[18,155 (4.98% / 5.25%)] [336,155 / 28,002 (97.15)]
4.5m/s - 5.4m/s 4.5m/s - 5.4m/s = 6,521
[6,521 (1.79% / 1.88%)] [342,676 / 9,847 (99.04)]
5.5m/s - 6.4m/s 5.5m/s - 6.4m/s = 2,245
[2,245 (0.62% / 0.65%)] [344,921 / 3,326 (99.69)]
6.5m/s - 7.4m/s 6.5m/s - 7.4m/s = 754
[754 (0.21% / 0.22%)] [345,675 / 1,081 (99.91)]
7.5m/s - 8.4m/s 7.5m/s - 8.4m/s = 225
[225 (0.06% / 0.07%)] [345,900 / 327 (99.97)]
8.5m/s - 9.4m/s 8.5m/s - 9.4m/s = 67
[67 (0.02% / 0.02%)] [345,967 / 102 (99.99)]
9.5m/s - 10.4m/s 9.5m/s - 10.4m/s = 22
[22 (0.01% / 0.01%)] [345,989 / 35 (100.00)]
10.5m/s - 11.4m/s 10.5m/s - 11.4m/s = 8
[8 (0.00% / 0.00%)] [345,997 / 13 (100.00)]
11.5m/s - 12.4m/s 11.5m/s - 12.4m/s = 3
[3 (0.00% / 0.00%)] [346,000 / 5 (100.00)]
13.5m/s - 14.4m/s 13.5m/s - 14.4m/s = 1
[1 (0.00% / 0.00%)] [346,001 / 2 (100.00)]
15.5m/s - 16.4m/s 15.5m/s - 16.4m/s = 1
[1 (0.00% / 0.00%)] [346,002 / 1 (100.00)]

Missing observations (18,510 / 5.08%)

Temperature

-7.5C - -6.6C -7.5C - -6.6C = 2
[2 (0.00% / 0.00%)] [2 / 345,900 (0.00)]
-6.5C - -5.6C -6.5C - -5.6C = 13
[13 (0.00% / 0.00%)] [15 / 345,898 (0.00)]
-5.5C - -4.6C -5.5C - -4.6C = 42
[42 (0.01% / 0.01%)] [57 / 345,885 (0.02)]
-4.5C - -3.6C -4.5C - -3.6C = 108
[108 (0.03% / 0.03%)] [165 / 345,843 (0.05)]
-3.5C - -2.6C -3.5C - -2.6C = 299
[299 (0.08% / 0.09%)] [464 / 345,735 (0.13)]
-2.5C - -1.6C -2.5C - -1.6C = 722
[722 (0.20% / 0.21%)] [1,186 / 345,436 (0.34)]
-1.5C - -0.6C -1.5C - -0.6C = 1,591
[1,591 (0.44% / 0.46%)] [2,777 / 344,714 (0.80)]
-0.5C - 0.4C -0.5C - 0.4C = 6,362
[6,362 (1.75% / 1.84%)] [9,139 / 343,123 (2.64)]
0.5C - 1.4C 0.5C - 1.4C = 5,546
[5,546 (1.52% / 1.60%)] [14,685 / 336,761 (4.25)]
1.5C - 2.4C 1.5C - 2.4C = 7,012
[7,012 (1.92% / 2.03%)] [21,697 / 331,215 (6.27)]
2.5C - 3.4C 2.5C - 3.4C = 8,375
[8,375 (2.30% / 2.42%)] [30,072 / 324,203 (8.69)]
3.5C - 4.4C 3.5C - 4.4C = 9,670
[9,670 (2.65% / 2.80%)] [39,742 / 315,828 (11.49)]
4.5C - 5.4C 4.5C - 5.4C = 10,703
[10,703 (2.94% / 3.09%)] [50,445 / 306,158 (14.58)]
5.5C - 6.4C 5.5C - 6.4C = 11,153
[11,153 (3.06% / 3.22%)] [61,598 / 295,455 (17.81)]
6.5C - 7.4C 6.5C - 7.4C = 11,801
[11,801 (3.24% / 3.41%)] [73,399 / 284,302 (21.22)]
7.5C - 8.4C 7.5C - 8.4C = 11,923
[11,923 (3.27% / 3.45%)] [85,322 / 272,501 (24.67)]
8.5C - 9.4C 8.5C - 9.4C = 12,152
[12,152 (3.33% / 3.51%)] [97,474 / 260,578 (28.18)]
9.5C - 10.4C 9.5C - 10.4C = 12,130
[12,130 (3.33% / 3.51%)] [109,604 / 248,426 (31.69)]
10.5C - 11.4C 10.5C - 11.4C = 11,533
[11,533 (3.16% / 3.33%)] [121,137 / 236,296 (35.02)]
11.5C - 12.4C 11.5C - 12.4C = 11,555
[11,555 (3.17% / 3.34%)] [132,692 / 224,763 (38.36)]
12.5C - 13.4C 12.5C - 13.4C = 11,197
[11,197 (3.07% / 3.24%)] [143,889 / 213,208 (41.60)]
13.5C - 14.4C 13.5C - 14.4C = 11,807
[11,807 (3.24% / 3.41%)] [155,696 / 202,011 (45.01)]
14.5C - 15.4C 14.5C - 15.4C = 12,198
[12,198 (3.35% / 3.53%)] [167,894 / 190,204 (48.54)]
15.5C - 16.4C 15.5C - 16.4C = 12,559
[12,559 (3.45% / 3.63%)] [180,453 / 178,006 (52.17)]
16.5C - 17.4C 16.5C - 17.4C = 13,497
[13,497 (3.70% / 3.90%)] [193,950 / 165,447 (56.07)]
17.5C - 18.4C 17.5C - 18.4C = 14,282
[14,282 (3.92% / 4.13%)] [208,232 / 151,950 (60.20)]
18.5C - 19.4C 18.5C - 19.4C = 14,593
[14,593 (4.00% / 4.22%)] [222,825 / 137,668 (64.42)]
19.5C - 20.4C 19.5C - 20.4C = 14,535
[14,535 (3.99% / 4.20%)] [237,360 / 123,075 (68.62)]
20.5C - 21.4C 20.5C - 21.4C = 14,546
[14,546 (3.99% / 4.21%)] [251,906 / 108,540 (72.83)]
21.5C - 22.4C 21.5C - 22.4C = 13,613
[13,613 (3.73% / 3.94%)] [265,519 / 93,994 (76.76)]
22.5C - 23.4C 22.5C - 23.4C = 13,532
[13,532 (3.71% / 3.91%)] [279,051 / 80,381 (80.67)]
23.5C - 24.4C 23.5C - 24.4C = 13,068
[13,068 (3.59% / 3.78%)] [292,119 / 66,849 (84.45)]
24.5C - 25.4C 24.5C - 25.4C = 12,379
[12,379 (3.40% / 3.58%)] [304,498 / 53,781 (88.03)]
25.5C - 26.4C 25.5C - 26.4C = 10,560
[10,560 (2.90% / 3.05%)] [315,058 / 41,402 (91.08)]
26.5C - 27.4C 26.5C - 27.4C = 8,229
[8,229 (2.26% / 2.38%)] [323,287 / 30,842 (93.46)]
27.5C - 28.4C 27.5C - 28.4C = 6,062
[6,062 (1.66% / 1.75%)] [329,349 / 22,613 (95.22)]
28.5C - 29.4C 28.5C - 29.4C = 4,661
[4,661 (1.28% / 1.35%)] [334,010 / 16,551 (96.56)]
29.5C - 30.4C 29.5C - 30.4C = 3,761
[3,761 (1.03% / 1.09%)] [337,771 / 11,890 (97.65)]
30.5C - 31.4C 30.5C - 31.4C = 3,004
[3,004 (0.82% / 0.87%)] [340,775 / 8,129 (98.52)]
31.5C - 32.4C 31.5C - 32.4C = 2,290
[2,290 (0.63% / 0.66%)] [343,065 / 5,125 (99.18)]
32.5C - 33.4C 32.5C - 33.4C = 1,539
[1,539 (0.42% / 0.44%)] [344,604 / 2,835 (99.63)]
33.5C - 34.4C 33.5C - 34.4C = 792
[792 (0.22% / 0.23%)] [345,396 / 1,296 (99.85)]
34.5C - 35.4C 34.5C - 35.4C = 352
[352 (0.10% / 0.10%)] [345,748 / 504 (99.96)]
35.5C - 36.4C 35.5C - 36.4C = 118
[118 (0.03% / 0.03%)] [345,866 / 152 (99.99)]
36.5C - 37.4C 36.5C - 37.4C = 24
[24 (0.01% / 0.01%)] [345,890 / 34 (100.00)]
37.5C - 38.4C 37.5C - 38.4C = 10
[10 (0.00% / 0.00%)] [345,900 / 10 (100.00)]

Missing observations (18,612 / 5.11%)

Sunshine Duration

0.0h 0.0h = 246,973
[246,973 (67.75% / 71.39%)] [246,973 / 345,942 (71.39)]
0.1h 0.1h = 7,718
[7,718 (2.12% / 2.23%)] [254,691 / 98,969 (73.62)]
0.2h 0.2h = 5,797
[5,797 (1.59% / 1.68%)] [260,488 / 91,251 (75.30)]
0.3h 0.3h = 5,120
[5,120 (1.40% / 1.48%)] [265,608 / 85,454 (76.78)]
0.4h 0.4h = 4,882
[4,882 (1.34% / 1.41%)] [270,490 / 80,334 (78.19)]
0.5h 0.5h = 5,259
[5,259 (1.44% / 1.52%)] [275,749 / 75,452 (79.71)]
0.6h 0.6h = 5,193
[5,193 (1.42% / 1.50%)] [280,942 / 70,193 (81.21)]
0.7h 0.7h = 5,456
[5,456 (1.50% / 1.58%)] [286,398 / 65,000 (82.79)]
0.8h 0.8h = 6,146
[6,146 (1.69% / 1.78%)] [292,544 / 59,544 (84.56)]
0.9h 0.9h = 7,956
[7,956 (2.18% / 2.30%)] [300,500 / 53,398 (86.86)]
1.0h 1.0h = 45,442
[45,442 (12.47% / 13.14%)] [345,942 / 45,442 (100.00)]

Missing observations (18,570 / 5.09%)