Station Number 45291
Prefecture Chiba [ Local Portal ]
Location 千葉県市原市米沢 (ICHIHARA SHI, CHIBA KEN)
Months of Observations 475
Number of Observations 346,713
Period of Observations
Period Name Lat. Long. Height Anemometer
1978/01/11 -- 1985/11/12 USHIKU 35.397N 140.148E 30m 6.5m
1985/11/13 -- 2002/12/23 USHIKU 35.397N 140.148E 30m 6.5m
2002/12/24 -- 2008/02/14 USHIKU 35.397N 140.148E 30m 9.4m
2008/02/15 -- 2017/07/99 USHIKU 35.397N 140.148E 30m 9.4m
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
45261 MOBARA (Chiba) 14.88km 81deg.
45331 OOTAKI (Chiba) 17.20km 159deg.
45326 SAKAHATA (Chiba) 18.54km 194deg.
45282 KISARAZU (Chiba) 19.29km 258deg.
45281 KISARAZU (Chiba) 21.31km 263deg.
45211 CHIBA (Chiba) 22.15km 352deg.
45212 CHIBA (Chiba) 23.11km 349deg.
45905 (Chiba) 23.11km 349deg.

Statistics for the Whole Period

Precipitation

0.0mm - 0.4mm 0.0mm - 0.4mm = 320,860
[320,860 (92.54% / 92.69%)] [320,860 / 346,178 (92.69)]
0.5mm - 1.4mm 0.5mm - 1.4mm = 13,227
[13,227 (3.81% / 3.82%)] [334,087 / 25,318 (96.51)]
1.5mm - 2.4mm 1.5mm - 2.4mm = 4,832
[4,832 (1.39% / 1.40%)] [338,919 / 12,091 (97.90)]
2.5mm - 3.4mm 2.5mm - 3.4mm = 2,461
[2,461 (0.71% / 0.71%)] [341,380 / 7,259 (98.61)]
3.5mm - 4.4mm 3.5mm - 4.4mm = 1,392
[1,392 (0.40% / 0.40%)] [342,772 / 4,798 (99.02)]
4.5mm - 5.4mm 4.5mm - 5.4mm = 893
[893 (0.26% / 0.26%)] [343,665 / 3,406 (99.27)]
5.5mm - 6.4mm 5.5mm - 6.4mm = 621
[621 (0.18% / 0.18%)] [344,286 / 2,513 (99.45)]
6.5mm - 7.4mm 6.5mm - 7.4mm = 415
[415 (0.12% / 0.12%)] [344,701 / 1,892 (99.57)]
7.5mm - 8.4mm 7.5mm - 8.4mm = 324
[324 (0.09% / 0.09%)] [345,025 / 1,477 (99.67)]
8.5mm - 9.4mm 8.5mm - 9.4mm = 232
[232 (0.07% / 0.07%)] [345,257 / 1,153 (99.73)]
9.5mm - 10.4mm 9.5mm - 10.4mm = 181
[181 (0.05% / 0.05%)] [345,438 / 921 (99.79)]
10.5mm - 11.4mm 10.5mm - 11.4mm = 134
[134 (0.04% / 0.04%)] [345,572 / 740 (99.82)]
11.5mm - 12.4mm 11.5mm - 12.4mm = 119
[119 (0.03% / 0.03%)] [345,691 / 606 (99.86)]
12.5mm - 13.4mm 12.5mm - 13.4mm = 85
[85 (0.02% / 0.02%)] [345,776 / 487 (99.88)]
13.5mm - 14.4mm 13.5mm - 14.4mm = 80
[80 (0.02% / 0.02%)] [345,856 / 402 (99.91)]
14.5mm - 15.4mm 14.5mm - 15.4mm = 43
[43 (0.01% / 0.01%)] [345,899 / 322 (99.92)]
15.5mm - 16.4mm 15.5mm - 16.4mm = 46
[46 (0.01% / 0.01%)] [345,945 / 279 (99.93)]
16.5mm - 17.4mm 16.5mm - 17.4mm = 27
[27 (0.01% / 0.01%)] [345,972 / 233 (99.94)]
17.5mm - 18.4mm 17.5mm - 18.4mm = 23
[23 (0.01% / 0.01%)] [345,995 / 206 (99.95)]
18.5mm - 19.4mm 18.5mm - 19.4mm = 28
[28 (0.01% / 0.01%)] [346,023 / 183 (99.96)]
19.5mm - 20.4mm 19.5mm - 20.4mm = 17
[17 (0.00% / 0.00%)] [346,040 / 155 (99.96)]
20.5mm - 21.4mm 20.5mm - 21.4mm = 9
[9 (0.00% / 0.00%)] [346,049 / 138 (99.96)]
21.5mm - 22.4mm 21.5mm - 22.4mm = 16
[16 (0.00% / 0.00%)] [346,065 / 129 (99.97)]
22.5mm - 23.4mm 22.5mm - 23.4mm = 14
[14 (0.00% / 0.00%)] [346,079 / 113 (99.97)]
23.5mm - 24.4mm 23.5mm - 24.4mm = 9
[9 (0.00% / 0.00%)] [346,088 / 99 (99.97)]
24.5mm - 25.4mm 24.5mm - 25.4mm = 6
[6 (0.00% / 0.00%)] [346,094 / 90 (99.98)]
25.5mm - 26.4mm 25.5mm - 26.4mm = 10
[10 (0.00% / 0.00%)] [346,104 / 84 (99.98)]
26.5mm - 27.4mm 26.5mm - 27.4mm = 11
[11 (0.00% / 0.00%)] [346,115 / 74 (99.98)]
27.5mm - 28.4mm 27.5mm - 28.4mm = 7
[7 (0.00% / 0.00%)] [346,122 / 63 (99.98)]
28.5mm - 29.4mm 28.5mm - 29.4mm = 6
[6 (0.00% / 0.00%)] [346,128 / 56 (99.99)]
29.5mm - 30.4mm 29.5mm - 30.4mm = 5
[5 (0.00% / 0.00%)] [346,133 / 50 (99.99)]
30.5mm - 31.4mm 30.5mm - 31.4mm = 2
[2 (0.00% / 0.00%)] [346,135 / 45 (99.99)]
31.5mm - 32.4mm 31.5mm - 32.4mm = 8
[8 (0.00% / 0.00%)] [346,143 / 43 (99.99)]
32.5mm - 33.4mm 32.5mm - 33.4mm = 5
[5 (0.00% / 0.00%)] [346,148 / 35 (99.99)]
33.5mm - 34.4mm 33.5mm - 34.4mm = 2
[2 (0.00% / 0.00%)] [346,150 / 30 (99.99)]
34.5mm - 35.4mm 34.5mm - 35.4mm = 4
[4 (0.00% / 0.00%)] [346,154 / 28 (99.99)]
35.5mm - 36.4mm 35.5mm - 36.4mm = 6
[6 (0.00% / 0.00%)] [346,160 / 24 (99.99)]
36.5mm - 37.4mm 36.5mm - 37.4mm = 4
[4 (0.00% / 0.00%)] [346,164 / 18 (100.00)]
37.5mm - 38.4mm 37.5mm - 38.4mm = 2
[2 (0.00% / 0.00%)] [346,166 / 14 (100.00)]
38.5mm - 39.4mm 38.5mm - 39.4mm = 1
[1 (0.00% / 0.00%)] [346,167 / 12 (100.00)]
40.5mm - 41.4mm 40.5mm - 41.4mm = 1
[1 (0.00% / 0.00%)] [346,168 / 11 (100.00)]
43.5mm - 44.4mm 43.5mm - 44.4mm = 2
[2 (0.00% / 0.00%)] [346,170 / 10 (100.00)]
44.5mm - 45.4mm 44.5mm - 45.4mm = 2
[2 (0.00% / 0.00%)] [346,172 / 8 (100.00)]
45.5mm - 46.4mm 45.5mm - 46.4mm = 1
[1 (0.00% / 0.00%)] [346,173 / 6 (100.00)]
48.5mm - 49.4mm 48.5mm - 49.4mm = 1
[1 (0.00% / 0.00%)] [346,174 / 5 (100.00)]
51.5mm - 52.4mm 51.5mm - 52.4mm = 1
[1 (0.00% / 0.00%)] [346,175 / 4 (100.00)]
56.5mm - 57.4mm 56.5mm - 57.4mm = 1
[1 (0.00% / 0.00%)] [346,176 / 3 (100.00)]
64.5mm - 65.4mm 64.5mm - 65.4mm = 1
[1 (0.00% / 0.00%)] [346,177 / 2 (100.00)]
79.5mm - 80.4mm 79.5mm - 80.4mm = 1
[1 (0.00% / 0.00%)] [346,178 / 1 (100.00)]

Missing observations (535 / 0.15%)

Wind Direction

Calm Calm = 69,504
[69,504 (20.05% / 20.07%)]
NNE NNE = 11,139
[11,139 (3.21% / 3.22%)]
NE NE = 12,055
[12,055 (3.48% / 3.48%)]
ENE ENE = 18,632
[18,632 (5.37% / 5.38%)]
E E = 40,650
[40,650 (11.72% / 11.74%)]
ESE ESE = 27,042
[27,042 (7.80% / 7.81%)]
SE SE = 14,449
[14,449 (4.17% / 4.17%)]
SSE SSE = 10,870
[10,870 (3.14% / 3.14%)]
S S = 11,625
[11,625 (3.35% / 3.36%)]
SSW SSW = 15,934
[15,934 (4.60% / 4.60%)]
SW SW = 16,273
[16,273 (4.69% / 4.70%)]
WSW WSW = 9,592
[9,592 (2.77% / 2.77%)]
W W = 5,562
[5,562 (1.60% / 1.61%)]
WNW WNW = 11,362
[11,362 (3.28% / 3.28%)]
NW NW = 26,640
[26,640 (7.68% / 7.69%)]
NNW NNW = 26,021
[26,021 (7.51% / 7.51%)]
N N = 18,935
[18,935 (5.46% / 5.47%)]

Missing observations (428 / 0.12%)

Wind Speed

0.0m/s - 0.4m/s 0.0m/s - 0.4m/s = 74,384
[74,384 (21.45% / 21.48%)] [74,384 / 346,306 (21.48)]
0.5m/s - 1.4m/s 0.5m/s - 1.4m/s = 119,954
[119,954 (34.60% / 34.64%)] [194,338 / 271,922 (56.12)]
1.5m/s - 2.4m/s 1.5m/s - 2.4m/s = 80,135
[80,135 (23.11% / 23.14%)] [274,473 / 151,968 (79.26)]
2.5m/s - 3.4m/s 2.5m/s - 3.4m/s = 42,261
[42,261 (12.19% / 12.20%)] [316,734 / 71,833 (91.46)]
3.5m/s - 4.4m/s 3.5m/s - 4.4m/s = 17,783
[17,783 (5.13% / 5.14%)] [334,517 / 29,572 (96.60)]
4.5m/s - 5.4m/s 4.5m/s - 5.4m/s = 7,578
[7,578 (2.19% / 2.19%)] [342,095 / 11,789 (98.78)]
5.5m/s - 6.4m/s 5.5m/s - 6.4m/s = 2,905
[2,905 (0.84% / 0.84%)] [345,000 / 4,211 (99.62)]
6.5m/s - 7.4m/s 6.5m/s - 7.4m/s = 938
[938 (0.27% / 0.27%)] [345,938 / 1,306 (99.89)]
7.5m/s - 8.4m/s 7.5m/s - 8.4m/s = 273
[273 (0.08% / 0.08%)] [346,211 / 368 (99.97)]
8.5m/s - 9.4m/s 8.5m/s - 9.4m/s = 66
[66 (0.02% / 0.02%)] [346,277 / 95 (99.99)]
9.5m/s - 10.4m/s 9.5m/s - 10.4m/s = 21
[21 (0.01% / 0.01%)] [346,298 / 29 (100.00)]
10.5m/s - 11.4m/s 10.5m/s - 11.4m/s = 7
[7 (0.00% / 0.00%)] [346,305 / 8 (100.00)]
11.5m/s - 12.4m/s 11.5m/s - 12.4m/s = 1
[1 (0.00% / 0.00%)] [346,306 / 1 (100.00)]

Missing observations (407 / 0.12%)

Temperature

-8.5C - -7.6C -8.5C - -7.6C = 4
[4 (0.00% / 0.00%)] [4 / 346,412 (0.00)]
-7.5C - -6.6C -7.5C - -6.6C = 26
[26 (0.01% / 0.01%)] [30 / 346,408 (0.01)]
-6.5C - -5.6C -6.5C - -5.6C = 139
[139 (0.04% / 0.04%)] [169 / 346,382 (0.05)]
-5.5C - -4.6C -5.5C - -4.6C = 328
[328 (0.09% / 0.09%)] [497 / 346,243 (0.14)]
-4.5C - -3.6C -4.5C - -3.6C = 803
[803 (0.23% / 0.23%)] [1,300 / 345,915 (0.38)]
-3.5C - -2.6C -3.5C - -2.6C = 1,609
[1,609 (0.46% / 0.46%)] [2,909 / 345,112 (0.84)]
-2.5C - -1.6C -2.5C - -1.6C = 2,516
[2,516 (0.73% / 0.73%)] [5,425 / 343,503 (1.57)]
-1.5C - -0.6C -1.5C - -0.6C = 3,763
[3,763 (1.09% / 1.09%)] [9,188 / 340,987 (2.65)]
-0.5C - 0.4C -0.5C - 0.4C = 9,922
[9,922 (2.86% / 2.86%)] [19,110 / 337,224 (5.52)]
0.5C - 1.4C 0.5C - 1.4C = 6,514
[6,514 (1.88% / 1.88%)] [25,624 / 327,302 (7.40)]
1.5C - 2.4C 1.5C - 2.4C = 7,359
[7,359 (2.12% / 2.12%)] [32,983 / 320,788 (9.52)]
2.5C - 3.4C 2.5C - 3.4C = 8,284
[8,284 (2.39% / 2.39%)] [41,267 / 313,429 (11.91)]
3.5C - 4.4C 3.5C - 4.4C = 9,307
[9,307 (2.68% / 2.69%)] [50,574 / 305,145 (14.60)]
4.5C - 5.4C 4.5C - 5.4C = 9,802
[9,802 (2.83% / 2.83%)] [60,376 / 295,838 (17.43)]
5.5C - 6.4C 5.5C - 6.4C = 10,623
[10,623 (3.06% / 3.07%)] [70,999 / 286,036 (20.50)]
6.5C - 7.4C 6.5C - 7.4C = 10,980
[10,980 (3.17% / 3.17%)] [81,979 / 275,413 (23.67)]
7.5C - 8.4C 7.5C - 8.4C = 11,284
[11,284 (3.25% / 3.26%)] [93,263 / 264,433 (26.92)]
8.5C - 9.4C 8.5C - 9.4C = 11,491
[11,491 (3.31% / 3.32%)] [104,754 / 253,149 (30.24)]
9.5C - 10.4C 9.5C - 10.4C = 11,460
[11,460 (3.31% / 3.31%)] [116,214 / 241,658 (33.55)]
10.5C - 11.4C 10.5C - 11.4C = 11,073
[11,073 (3.19% / 3.20%)] [127,287 / 230,198 (36.74)]
11.5C - 12.4C 11.5C - 12.4C = 11,167
[11,167 (3.22% / 3.22%)] [138,454 / 219,125 (39.97)]
12.5C - 13.4C 12.5C - 13.4C = 11,414
[11,414 (3.29% / 3.29%)] [149,868 / 207,958 (43.26)]
13.5C - 14.4C 13.5C - 14.4C = 11,546
[11,546 (3.33% / 3.33%)] [161,414 / 196,544 (46.60)]
14.5C - 15.4C 14.5C - 15.4C = 11,722
[11,722 (3.38% / 3.38%)] [173,136 / 184,998 (49.98)]
15.5C - 16.4C 15.5C - 16.4C = 12,443
[12,443 (3.59% / 3.59%)] [185,579 / 173,276 (53.57)]
16.5C - 17.4C 16.5C - 17.4C = 13,151
[13,151 (3.79% / 3.80%)] [198,730 / 160,833 (57.37)]
17.5C - 18.4C 17.5C - 18.4C = 13,912
[13,912 (4.01% / 4.02%)] [212,642 / 147,682 (61.38)]
18.5C - 19.4C 18.5C - 19.4C = 14,058
[14,058 (4.05% / 4.06%)] [226,700 / 133,770 (65.44)]
19.5C - 20.4C 19.5C - 20.4C = 13,771
[13,771 (3.97% / 3.98%)] [240,471 / 119,712 (69.42)]
20.5C - 21.4C 20.5C - 21.4C = 13,677
[13,677 (3.94% / 3.95%)] [254,148 / 105,941 (73.37)]
21.5C - 22.4C 21.5C - 22.4C = 13,395
[13,395 (3.86% / 3.87%)] [267,543 / 92,264 (77.23)]
22.5C - 23.4C 22.5C - 23.4C = 13,562
[13,562 (3.91% / 3.91%)] [281,105 / 78,869 (81.15)]
23.5C - 24.4C 23.5C - 24.4C = 12,594
[12,594 (3.63% / 3.64%)] [293,699 / 65,307 (84.78)]
24.5C - 25.4C 24.5C - 25.4C = 11,420
[11,420 (3.29% / 3.30%)] [305,119 / 52,713 (88.08)]
25.5C - 26.4C 25.5C - 26.4C = 9,714
[9,714 (2.80% / 2.80%)] [314,833 / 41,293 (90.88)]
26.5C - 27.4C 26.5C - 27.4C = 7,622
[7,622 (2.20% / 2.20%)] [322,455 / 31,579 (93.08)]
27.5C - 28.4C 27.5C - 28.4C = 5,950
[5,950 (1.72% / 1.72%)] [328,405 / 23,957 (94.80)]
28.5C - 29.4C 28.5C - 29.4C = 4,730
[4,730 (1.36% / 1.37%)] [333,135 / 18,007 (96.17)]
29.5C - 30.4C 29.5C - 30.4C = 3,831
[3,831 (1.10% / 1.11%)] [336,966 / 13,277 (97.27)]
30.5C - 31.4C 30.5C - 31.4C = 3,164
[3,164 (0.91% / 0.91%)] [340,130 / 9,446 (98.19)]
31.5C - 32.4C 31.5C - 32.4C = 2,653
[2,653 (0.77% / 0.77%)] [342,783 / 6,282 (98.95)]
32.5C - 33.4C 32.5C - 33.4C = 1,770
[1,770 (0.51% / 0.51%)] [344,553 / 3,629 (99.46)]
33.5C - 34.4C 33.5C - 34.4C = 1,095
[1,095 (0.32% / 0.32%)] [345,648 / 1,859 (99.78)]
34.5C - 35.4C 34.5C - 35.4C = 512
[512 (0.15% / 0.15%)] [346,160 / 764 (99.93)]
35.5C - 36.4C 35.5C - 36.4C = 183
[183 (0.05% / 0.05%)] [346,343 / 252 (99.98)]
36.5C - 37.4C 36.5C - 37.4C = 51
[51 (0.01% / 0.01%)] [346,394 / 69 (99.99)]
37.5C - 38.4C 37.5C - 38.4C = 14
[14 (0.00% / 0.00%)] [346,408 / 18 (100.00)]
38.5C - 39.4C 38.5C - 39.4C = 2
[2 (0.00% / 0.00%)] [346,410 / 4 (100.00)]
39.5C - 40.4C 39.5C - 40.4C = 2
[2 (0.00% / 0.00%)] [346,412 / 2 (100.00)]

Missing observations (301 / 0.09%)

Sunshine Duration

0.0h 0.0h = 247,669
[247,669 (71.43% / 71.50%)] [247,669 / 346,377 (71.50)]
0.1h 0.1h = 8,041
[8,041 (2.32% / 2.32%)] [255,710 / 98,708 (73.82)]
0.2h 0.2h = 6,318
[6,318 (1.82% / 1.82%)] [262,028 / 90,667 (75.65)]
0.3h 0.3h = 5,516
[5,516 (1.59% / 1.59%)] [267,544 / 84,349 (77.24)]
0.4h 0.4h = 5,137
[5,137 (1.48% / 1.48%)] [272,681 / 78,833 (78.72)]
0.5h 0.5h = 5,164
[5,164 (1.49% / 1.49%)] [277,845 / 73,696 (80.21)]
0.6h 0.6h = 5,233
[5,233 (1.51% / 1.51%)] [283,078 / 68,532 (81.73)]
0.7h 0.7h = 5,720
[5,720 (1.65% / 1.65%)] [288,798 / 63,299 (83.38)]
0.8h 0.8h = 6,350
[6,350 (1.83% / 1.83%)] [295,148 / 57,579 (85.21)]
0.9h 0.9h = 8,019
[8,019 (2.31% / 2.32%)] [303,167 / 51,229 (87.53)]
1.0h 1.0h = 43,210
[43,210 (12.46% / 12.47%)] [346,377 / 43,210 (100.00)]

Missing observations (336 / 0.10%)