Station Number 45291
Prefecture Chiba [ Local Portal ]
Location 千葉県市原市米沢 (ICHIHARA SHI, CHIBA KEN)
Months of Observations 452
Number of Observations 329,913
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 -- 2015/08/99 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 = 305,425
[305,425 (92.58% / 92.73%)] [305,425 / 329,385 (92.73%)]
0.5mm - 1.4mm 0.5mm - 1.4mm = 12,487
[12,487 (3.78% / 3.79%)] [317,912 / 23,960 (96.52%)]
1.5mm - 2.4mm 1.5mm - 2.4mm = 4,595
[4,595 (1.39% / 1.40%)] [322,507 / 11,473 (97.91%)]
2.5mm - 3.4mm 2.5mm - 3.4mm = 2,361
[2,361 (0.72% / 0.72%)] [324,868 / 6,878 (98.63%)]
3.5mm - 4.4mm 3.5mm - 4.4mm = 1,308
[1,308 (0.40% / 0.40%)] [326,176 / 4,517 (99.03%)]
4.5mm - 5.4mm 4.5mm - 5.4mm = 851
[851 (0.26% / 0.26%)] [327,027 / 3,209 (99.28%)]
5.5mm - 6.4mm 5.5mm - 6.4mm = 579
[579 (0.18% / 0.18%)] [327,606 / 2,358 (99.46%)]
6.5mm - 7.4mm 6.5mm - 7.4mm = 394
[394 (0.12% / 0.12%)] [328,000 / 1,779 (99.58%)]
7.5mm - 8.4mm 7.5mm - 8.4mm = 299
[299 (0.09% / 0.09%)] [328,299 / 1,385 (99.67%)]
8.5mm - 9.4mm 8.5mm - 9.4mm = 214
[214 (0.06% / 0.06%)] [328,513 / 1,086 (99.74%)]
9.5mm - 10.4mm 9.5mm - 10.4mm = 176
[176 (0.05% / 0.05%)] [328,689 / 872 (99.79%)]
10.5mm - 11.4mm 10.5mm - 11.4mm = 126
[126 (0.04% / 0.04%)] [328,815 / 696 (99.83%)]
11.5mm - 12.4mm 11.5mm - 12.4mm = 113
[113 (0.03% / 0.03%)] [328,928 / 570 (99.86%)]
12.5mm - 13.4mm 12.5mm - 13.4mm = 74
[74 (0.02% / 0.02%)] [329,002 / 457 (99.88%)]
13.5mm - 14.4mm 13.5mm - 14.4mm = 75
[75 (0.02% / 0.02%)] [329,077 / 383 (99.91%)]
14.5mm - 15.4mm 14.5mm - 15.4mm = 39
[39 (0.01% / 0.01%)] [329,116 / 308 (99.92%)]
15.5mm - 16.4mm 15.5mm - 16.4mm = 45
[45 (0.01% / 0.01%)] [329,161 / 269 (99.93%)]
16.5mm - 17.4mm 16.5mm - 17.4mm = 27
[27 (0.01% / 0.01%)] [329,188 / 224 (99.94%)]
17.5mm - 18.4mm 17.5mm - 18.4mm = 23
[23 (0.01% / 0.01%)] [329,211 / 197 (99.95%)]
18.5mm - 19.4mm 18.5mm - 19.4mm = 27
[27 (0.01% / 0.01%)] [329,238 / 174 (99.96%)]
19.5mm - 20.4mm 19.5mm - 20.4mm = 16
[16 (0.00% / 0.00%)] [329,254 / 147 (99.96%)]
20.5mm - 21.4mm 20.5mm - 21.4mm = 8
[8 (0.00% / 0.00%)] [329,262 / 131 (99.96%)]
21.5mm - 22.4mm 21.5mm - 22.4mm = 16
[16 (0.00% / 0.00%)] [329,278 / 123 (99.97%)]
22.5mm - 23.4mm 22.5mm - 23.4mm = 13
[13 (0.00% / 0.00%)] [329,291 / 107 (99.97%)]
23.5mm - 24.4mm 23.5mm - 24.4mm = 9
[9 (0.00% / 0.00%)] [329,300 / 94 (99.97%)]
24.5mm - 25.4mm 24.5mm - 25.4mm = 5
[5 (0.00% / 0.00%)] [329,305 / 85 (99.98%)]
25.5mm - 26.4mm 25.5mm - 26.4mm = 9
[9 (0.00% / 0.00%)] [329,314 / 80 (99.98%)]
26.5mm - 27.4mm 26.5mm - 27.4mm = 11
[11 (0.00% / 0.00%)] [329,325 / 71 (99.98%)]
27.5mm - 28.4mm 27.5mm - 28.4mm = 7
[7 (0.00% / 0.00%)] [329,332 / 60 (99.98%)]
28.5mm - 29.4mm 28.5mm - 29.4mm = 6
[6 (0.00% / 0.00%)] [329,338 / 53 (99.99%)]
29.5mm - 30.4mm 29.5mm - 30.4mm = 5
[5 (0.00% / 0.00%)] [329,343 / 47 (99.99%)]
30.5mm - 31.4mm 30.5mm - 31.4mm = 2
[2 (0.00% / 0.00%)] [329,345 / 42 (99.99%)]
31.5mm - 32.4mm 31.5mm - 32.4mm = 8
[8 (0.00% / 0.00%)] [329,353 / 40 (99.99%)]
32.5mm - 33.4mm 32.5mm - 33.4mm = 5
[5 (0.00% / 0.00%)] [329,358 / 32 (99.99%)]
33.5mm - 34.4mm 33.5mm - 34.4mm = 2
[2 (0.00% / 0.00%)] [329,360 / 27 (99.99%)]
34.5mm - 35.4mm 34.5mm - 35.4mm = 3
[3 (0.00% / 0.00%)] [329,363 / 25 (99.99%)]
35.5mm - 36.4mm 35.5mm - 36.4mm = 6
[6 (0.00% / 0.00%)] [329,369 / 22 (100.00%)]
36.5mm - 37.4mm 36.5mm - 37.4mm = 3
[3 (0.00% / 0.00%)] [329,372 / 16 (100.00%)]
37.5mm - 38.4mm 37.5mm - 38.4mm = 2
[2 (0.00% / 0.00%)] [329,374 / 13 (100.00%)]
38.5mm - 39.4mm 38.5mm - 39.4mm = 1
[1 (0.00% / 0.00%)] [329,375 / 11 (100.00%)]
40.5mm - 41.4mm 40.5mm - 41.4mm = 1
[1 (0.00% / 0.00%)] [329,376 / 10 (100.00%)]
43.5mm - 44.4mm 43.5mm - 44.4mm = 2
[2 (0.00% / 0.00%)] [329,378 / 9 (100.00%)]
44.5mm - 45.4mm 44.5mm - 45.4mm = 2
[2 (0.00% / 0.00%)] [329,380 / 7 (100.00%)]
45.5mm - 46.4mm 45.5mm - 46.4mm = 1
[1 (0.00% / 0.00%)] [329,381 / 5 (100.00%)]
48.5mm - 49.4mm 48.5mm - 49.4mm = 1
[1 (0.00% / 0.00%)] [329,382 / 4 (100.00%)]
51.5mm - 52.4mm 51.5mm - 52.4mm = 1
[1 (0.00% / 0.00%)] [329,383 / 3 (100.00%)]
56.5mm - 57.4mm 56.5mm - 57.4mm = 1
[1 (0.00% / 0.00%)] [329,384 / 2 (100.00%)]
79.5mm - 80.4mm 79.5mm - 80.4mm = 1
[1 (0.00% / 0.00%)] [329,385 / 1 (100.00%)]

Missing observations (528 / 0.16%)

Wind Direction

Calm Calm = 68,158
[68,158 (20.66% / 20.69%)] [0 / 0 (NA)]
NNE NNE = 10,481
[10,481 (3.18% / 3.18%)] [0 / 0 (NA)]
NE NE = 11,382
[11,382 (3.45% / 3.45%)] [0 / 0 (NA)]
ENE ENE = 17,594
[17,594 (5.33% / 5.34%)] [0 / 0 (NA)]
E E = 38,347
[38,347 (11.62% / 11.64%)] [0 / 0 (NA)]
ESE ESE = 25,289
[25,289 (7.67% / 7.67%)] [0 / 0 (NA)]
SE SE = 13,575
[13,575 (4.11% / 4.12%)] [0 / 0 (NA)]
SSE SSE = 10,212
[10,212 (3.10% / 3.10%)] [0 / 0 (NA)]
S S = 10,871
[10,871 (3.30% / 3.30%)] [0 / 0 (NA)]
SSW SSW = 14,982
[14,982 (4.54% / 4.55%)] [0 / 0 (NA)]
SW SW = 15,539
[15,539 (4.71% / 4.72%)] [0 / 0 (NA)]
WSW WSW = 9,157
[9,157 (2.78% / 2.78%)] [0 / 0 (NA)]
W W = 5,310
[5,310 (1.61% / 1.61%)] [0 / 0 (NA)]
WNW WNW = 10,930
[10,930 (3.31% / 3.32%)] [0 / 0 (NA)]
NW NW = 25,355
[25,355 (7.69% / 7.70%)] [0 / 0 (NA)]
NNW NNW = 24,465
[24,465 (7.42% / 7.42%)] [0 / 0 (NA)]
N N = 17,852
[17,852 (5.41% / 5.42%)] [0 / 0 (NA)]

Missing observations (414 / 0.13%)

Wind Speed

0.0m/s - 0.4m/s 0.0m/s - 0.4m/s = 71,939
[71,939 (21.81% / 21.83%)] [71,939 / 329,520 (21.83%)]
0.5m/s - 1.4m/s 0.5m/s - 1.4m/s = 113,673
[113,673 (34.46% / 34.50%)] [185,612 / 257,581 (56.33%)]
1.5m/s - 2.4m/s 1.5m/s - 2.4m/s = 75,925
[75,925 (23.01% / 23.04%)] [261,537 / 143,908 (79.37%)]
2.5m/s - 3.4m/s 2.5m/s - 3.4m/s = 40,073
[40,073 (12.15% / 12.16%)] [301,610 / 67,983 (91.53%)]
3.5m/s - 4.4m/s 3.5m/s - 4.4m/s = 16,849
[16,849 (5.11% / 5.11%)] [318,459 / 27,910 (96.64%)]
4.5m/s - 5.4m/s 4.5m/s - 5.4m/s = 7,146
[7,146 (2.17% / 2.17%)] [325,605 / 11,061 (98.81%)]
5.5m/s - 6.4m/s 5.5m/s - 6.4m/s = 2,705
[2,705 (0.82% / 0.82%)] [328,310 / 3,915 (99.63%)]
6.5m/s - 7.4m/s 6.5m/s - 7.4m/s = 871
[871 (0.26% / 0.26%)] [329,181 / 1,210 (99.90%)]
7.5m/s - 8.4m/s 7.5m/s - 8.4m/s = 254
[254 (0.08% / 0.08%)] [329,435 / 339 (99.97%)]
8.5m/s - 9.4m/s 8.5m/s - 9.4m/s = 58
[58 (0.02% / 0.02%)] [329,493 / 85 (99.99%)]
9.5m/s - 10.4m/s 9.5m/s - 10.4m/s = 19
[19 (0.01% / 0.01%)] [329,512 / 27 (100.00%)]
10.5m/s - 11.4m/s 10.5m/s - 11.4m/s = 7
[7 (0.00% / 0.00%)] [329,519 / 8 (100.00%)]
11.5m/s - 12.4m/s 11.5m/s - 12.4m/s = 1
[1 (0.00% / 0.00%)] [329,520 / 1 (100.00%)]

Missing observations (393 / 0.12%)

Temperature

-8.5C - -7.6C -8.5C - -7.6C = 4
[4 (0.00% / 0.00%)] [4 / 329,616 (0.00%)]
-7.5C - -6.6C -7.5C - -6.6C = 26
[26 (0.01% / 0.01%)] [30 / 329,612 (0.01%)]
-6.5C - -5.6C -6.5C - -5.6C = 139
[139 (0.04% / 0.04%)] [169 / 329,586 (0.05%)]
-5.5C - -4.6C -5.5C - -4.6C = 317
[317 (0.10% / 0.10%)] [486 / 329,447 (0.15%)]
-4.5C - -3.6C -4.5C - -3.6C = 784
[784 (0.24% / 0.24%)] [1,270 / 329,130 (0.39%)]
-3.5C - -2.6C -3.5C - -2.6C = 1,571
[1,571 (0.48% / 0.48%)] [2,841 / 328,346 (0.86%)]
-2.5C - -1.6C -2.5C - -1.6C = 2,432
[2,432 (0.74% / 0.74%)] [5,273 / 326,775 (1.60%)]
-1.5C - -0.6C -1.5C - -0.6C = 3,598
[3,598 (1.09% / 1.09%)] [8,871 / 324,343 (2.69%)]
-0.5C - 0.4C -0.5C - 0.4C = 9,443
[9,443 (2.86% / 2.86%)] [18,314 / 320,745 (5.56%)]
0.5C - 1.4C 0.5C - 1.4C = 6,244
[6,244 (1.89% / 1.89%)] [24,558 / 311,302 (7.45%)]
1.5C - 2.4C 1.5C - 2.4C = 6,987
[6,987 (2.12% / 2.12%)] [31,545 / 305,058 (9.57%)]
2.5C - 3.4C 2.5C - 3.4C = 7,897
[7,897 (2.39% / 2.40%)] [39,442 / 298,071 (11.97%)]
3.5C - 4.4C 3.5C - 4.4C = 8,898
[8,898 (2.70% / 2.70%)] [48,340 / 290,174 (14.67%)]
4.5C - 5.4C 4.5C - 5.4C = 9,401
[9,401 (2.85% / 2.85%)] [57,741 / 281,276 (17.52%)]
5.5C - 6.4C 5.5C - 6.4C = 10,114
[10,114 (3.07% / 3.07%)] [67,855 / 271,875 (20.59%)]
6.5C - 7.4C 6.5C - 7.4C = 10,459
[10,459 (3.17% / 3.17%)] [78,314 / 261,761 (23.76%)]
7.5C - 8.4C 7.5C - 8.4C = 10,792
[10,792 (3.27% / 3.27%)] [89,106 / 251,302 (27.03%)]
8.5C - 9.4C 8.5C - 9.4C = 10,923
[10,923 (3.31% / 3.31%)] [100,029 / 240,510 (30.35%)]
9.5C - 10.4C 9.5C - 10.4C = 10,793
[10,793 (3.27% / 3.27%)] [110,822 / 229,587 (33.62%)]
10.5C - 11.4C 10.5C - 11.4C = 10,456
[10,456 (3.17% / 3.17%)] [121,278 / 218,794 (36.79%)]
11.5C - 12.4C 11.5C - 12.4C = 10,551
[10,551 (3.20% / 3.20%)] [131,829 / 208,338 (39.99%)]
12.5C - 13.4C 12.5C - 13.4C = 10,797
[10,797 (3.27% / 3.28%)] [142,626 / 197,787 (43.27%)]
13.5C - 14.4C 13.5C - 14.4C = 10,998
[10,998 (3.33% / 3.34%)] [153,624 / 186,990 (46.61%)]
14.5C - 15.4C 14.5C - 15.4C = 11,155
[11,155 (3.38% / 3.38%)] [164,779 / 175,992 (49.99%)]
15.5C - 16.4C 15.5C - 16.4C = 11,860
[11,860 (3.59% / 3.60%)] [176,639 / 164,837 (53.59%)]
16.5C - 17.4C 16.5C - 17.4C = 12,504
[12,504 (3.79% / 3.79%)] [189,143 / 152,977 (57.38%)]
17.5C - 18.4C 17.5C - 18.4C = 13,262
[13,262 (4.02% / 4.02%)] [202,405 / 140,473 (61.41%)]
18.5C - 19.4C 18.5C - 19.4C = 13,370
[13,370 (4.05% / 4.06%)] [215,775 / 127,211 (65.46%)]
19.5C - 20.4C 19.5C - 20.4C = 13,040
[13,040 (3.95% / 3.96%)] [228,815 / 113,841 (69.42%)]
20.5C - 21.4C 20.5C - 21.4C = 12,964
[12,964 (3.93% / 3.93%)] [241,779 / 100,801 (73.35%)]
21.5C - 22.4C 21.5C - 22.4C = 12,625
[12,625 (3.83% / 3.83%)] [254,404 / 87,837 (77.18%)]
22.5C - 23.4C 22.5C - 23.4C = 12,877
[12,877 (3.90% / 3.91%)] [267,281 / 75,212 (81.09%)]
23.5C - 24.4C 23.5C - 24.4C = 11,978
[11,978 (3.63% / 3.63%)] [279,259 / 62,335 (84.72%)]
24.5C - 25.4C 24.5C - 25.4C = 10,852
[10,852 (3.29% / 3.29%)] [290,111 / 50,357 (88.01%)]
25.5C - 26.4C 25.5C - 26.4C = 9,256
[9,256 (2.81% / 2.81%)] [299,367 / 39,505 (90.82%)]
26.5C - 27.4C 26.5C - 27.4C = 7,264
[7,264 (2.20% / 2.20%)] [306,631 / 30,249 (93.03%)]
27.5C - 28.4C 27.5C - 28.4C = 5,641
[5,641 (1.71% / 1.71%)] [312,272 / 22,985 (94.74%)]
28.5C - 29.4C 28.5C - 29.4C = 4,503
[4,503 (1.36% / 1.37%)] [316,775 / 17,344 (96.10%)]
29.5C - 30.4C 29.5C - 30.4C = 3,654
[3,654 (1.11% / 1.11%)] [320,429 / 12,841 (97.21%)]
30.5C - 31.4C 30.5C - 31.4C = 3,045
[3,045 (0.92% / 0.92%)] [323,474 / 9,187 (98.14%)]
31.5C - 32.4C 31.5C - 32.4C = 2,565
[2,565 (0.78% / 0.78%)] [326,039 / 6,142 (98.91%)]
32.5C - 33.4C 32.5C - 33.4C = 1,739
[1,739 (0.53% / 0.53%)] [327,778 / 3,577 (99.44%)]
33.5C - 34.4C 33.5C - 34.4C = 1,083
[1,083 (0.33% / 0.33%)] [328,861 / 1,838 (99.77%)]
34.5C - 35.4C 34.5C - 35.4C = 509
[509 (0.15% / 0.15%)] [329,370 / 755 (99.93%)]
35.5C - 36.4C 35.5C - 36.4C = 181
[181 (0.05% / 0.05%)] [329,551 / 246 (99.98%)]
36.5C - 37.4C 36.5C - 37.4C = 47
[47 (0.01% / 0.01%)] [329,598 / 65 (99.99%)]
37.5C - 38.4C 37.5C - 38.4C = 14
[14 (0.00% / 0.00%)] [329,612 / 18 (100.00%)]
38.5C - 39.4C 38.5C - 39.4C = 2
[2 (0.00% / 0.00%)] [329,614 / 4 (100.00%)]
39.5C - 40.4C 39.5C - 40.4C = 2
[2 (0.00% / 0.00%)] [329,616 / 2 (100.00%)]

Missing observations (297 / 0.09%)

Sunshine Duration

0.0h 0.0h = 236,045
[236,045 (71.55% / 71.62%)] [236,045 / 329,591 (71.62%)]
0.1h 0.1h = 7,566
[7,566 (2.29% / 2.30%)] [243,611 / 93,546 (73.91%)]
0.2h 0.2h = 5,956
[5,956 (1.81% / 1.81%)] [249,567 / 85,980 (75.72%)]
0.3h 0.3h = 5,216
[5,216 (1.58% / 1.58%)] [254,783 / 80,024 (77.30%)]
0.4h 0.4h = 4,878
[4,878 (1.48% / 1.48%)] [259,661 / 74,808 (78.78%)]
0.5h 0.5h = 4,877
[4,877 (1.48% / 1.48%)] [264,538 / 69,930 (80.26%)]
0.6h 0.6h = 4,946
[4,946 (1.50% / 1.50%)] [269,484 / 65,053 (81.76%)]
0.7h 0.7h = 5,397
[5,397 (1.64% / 1.64%)] [274,881 / 60,107 (83.40%)]
0.8h 0.8h = 6,017
[6,017 (1.82% / 1.83%)] [280,898 / 54,710 (85.23%)]
0.9h 0.9h = 7,573
[7,573 (2.30% / 2.30%)] [288,471 / 48,693 (87.52%)]
1.0h 1.0h = 41,120
[41,120 (12.46% / 12.48%)] [329,591 / 41,120 (100.00%)]

Missing observations (322 / 0.10%)