Station Number 45291
Prefecture Chiba [ Local Portal ]
Location 千葉県市原市米沢 (ICHIHARA SHI, CHIBA KEN)
Months of Observations 471
Number of Observations 343,785
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 -- 2017/03/99 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 = 318,097
[318,097 (92.53% / 92.67%)] [318,097 / 343,256 (92.67%)]
0.5mm - 1.4mm 0.5mm - 1.4mm = 13,143
[13,143 (3.82% / 3.83%)] [331,240 / 25,159 (96.50%)]
1.5mm - 2.4mm 1.5mm - 2.4mm = 4,801
[4,801 (1.40% / 1.40%)] [336,041 / 12,016 (97.90%)]
2.5mm - 3.4mm 2.5mm - 3.4mm = 2,448
[2,448 (0.71% / 0.71%)] [338,489 / 7,215 (98.61%)]
3.5mm - 4.4mm 3.5mm - 4.4mm = 1,383
[1,383 (0.40% / 0.40%)] [339,872 / 4,767 (99.01%)]
4.5mm - 5.4mm 4.5mm - 5.4mm = 887
[887 (0.26% / 0.26%)] [340,759 / 3,384 (99.27%)]
5.5mm - 6.4mm 5.5mm - 6.4mm = 618
[618 (0.18% / 0.18%)] [341,377 / 2,497 (99.45%)]
6.5mm - 7.4mm 6.5mm - 7.4mm = 411
[411 (0.12% / 0.12%)] [341,788 / 1,879 (99.57%)]
7.5mm - 8.4mm 7.5mm - 8.4mm = 324
[324 (0.09% / 0.09%)] [342,112 / 1,468 (99.67%)]
8.5mm - 9.4mm 8.5mm - 9.4mm = 227
[227 (0.07% / 0.07%)] [342,339 / 1,144 (99.73%)]
9.5mm - 10.4mm 9.5mm - 10.4mm = 181
[181 (0.05% / 0.05%)] [342,520 / 917 (99.79%)]
10.5mm - 11.4mm 10.5mm - 11.4mm = 133
[133 (0.04% / 0.04%)] [342,653 / 736 (99.82%)]
11.5mm - 12.4mm 11.5mm - 12.4mm = 118
[118 (0.03% / 0.03%)] [342,771 / 603 (99.86%)]
12.5mm - 13.4mm 12.5mm - 13.4mm = 84
[84 (0.02% / 0.02%)] [342,855 / 485 (99.88%)]
13.5mm - 14.4mm 13.5mm - 14.4mm = 80
[80 (0.02% / 0.02%)] [342,935 / 401 (99.91%)]
14.5mm - 15.4mm 14.5mm - 15.4mm = 42
[42 (0.01% / 0.01%)] [342,977 / 321 (99.92%)]
15.5mm - 16.4mm 15.5mm - 16.4mm = 46
[46 (0.01% / 0.01%)] [343,023 / 279 (99.93%)]
16.5mm - 17.4mm 16.5mm - 17.4mm = 27
[27 (0.01% / 0.01%)] [343,050 / 233 (99.94%)]
17.5mm - 18.4mm 17.5mm - 18.4mm = 23
[23 (0.01% / 0.01%)] [343,073 / 206 (99.95%)]
18.5mm - 19.4mm 18.5mm - 19.4mm = 28
[28 (0.01% / 0.01%)] [343,101 / 183 (99.95%)]
19.5mm - 20.4mm 19.5mm - 20.4mm = 17
[17 (0.00% / 0.00%)] [343,118 / 155 (99.96%)]
20.5mm - 21.4mm 20.5mm - 21.4mm = 9
[9 (0.00% / 0.00%)] [343,127 / 138 (99.96%)]
21.5mm - 22.4mm 21.5mm - 22.4mm = 16
[16 (0.00% / 0.00%)] [343,143 / 129 (99.97%)]
22.5mm - 23.4mm 22.5mm - 23.4mm = 14
[14 (0.00% / 0.00%)] [343,157 / 113 (99.97%)]
23.5mm - 24.4mm 23.5mm - 24.4mm = 9
[9 (0.00% / 0.00%)] [343,166 / 99 (99.97%)]
24.5mm - 25.4mm 24.5mm - 25.4mm = 6
[6 (0.00% / 0.00%)] [343,172 / 90 (99.98%)]
25.5mm - 26.4mm 25.5mm - 26.4mm = 10
[10 (0.00% / 0.00%)] [343,182 / 84 (99.98%)]
26.5mm - 27.4mm 26.5mm - 27.4mm = 11
[11 (0.00% / 0.00%)] [343,193 / 74 (99.98%)]
27.5mm - 28.4mm 27.5mm - 28.4mm = 7
[7 (0.00% / 0.00%)] [343,200 / 63 (99.98%)]
28.5mm - 29.4mm 28.5mm - 29.4mm = 6
[6 (0.00% / 0.00%)] [343,206 / 56 (99.99%)]
29.5mm - 30.4mm 29.5mm - 30.4mm = 5
[5 (0.00% / 0.00%)] [343,211 / 50 (99.99%)]
30.5mm - 31.4mm 30.5mm - 31.4mm = 2
[2 (0.00% / 0.00%)] [343,213 / 45 (99.99%)]
31.5mm - 32.4mm 31.5mm - 32.4mm = 8
[8 (0.00% / 0.00%)] [343,221 / 43 (99.99%)]
32.5mm - 33.4mm 32.5mm - 33.4mm = 5
[5 (0.00% / 0.00%)] [343,226 / 35 (99.99%)]
33.5mm - 34.4mm 33.5mm - 34.4mm = 2
[2 (0.00% / 0.00%)] [343,228 / 30 (99.99%)]
34.5mm - 35.4mm 34.5mm - 35.4mm = 4
[4 (0.00% / 0.00%)] [343,232 / 28 (99.99%)]
35.5mm - 36.4mm 35.5mm - 36.4mm = 6
[6 (0.00% / 0.00%)] [343,238 / 24 (99.99%)]
36.5mm - 37.4mm 36.5mm - 37.4mm = 4
[4 (0.00% / 0.00%)] [343,242 / 18 (100.00%)]
37.5mm - 38.4mm 37.5mm - 38.4mm = 2
[2 (0.00% / 0.00%)] [343,244 / 14 (100.00%)]
38.5mm - 39.4mm 38.5mm - 39.4mm = 1
[1 (0.00% / 0.00%)] [343,245 / 12 (100.00%)]
40.5mm - 41.4mm 40.5mm - 41.4mm = 1
[1 (0.00% / 0.00%)] [343,246 / 11 (100.00%)]
43.5mm - 44.4mm 43.5mm - 44.4mm = 2
[2 (0.00% / 0.00%)] [343,248 / 10 (100.00%)]
44.5mm - 45.4mm 44.5mm - 45.4mm = 2
[2 (0.00% / 0.00%)] [343,250 / 8 (100.00%)]
45.5mm - 46.4mm 45.5mm - 46.4mm = 1
[1 (0.00% / 0.00%)] [343,251 / 6 (100.00%)]
48.5mm - 49.4mm 48.5mm - 49.4mm = 1
[1 (0.00% / 0.00%)] [343,252 / 5 (100.00%)]
51.5mm - 52.4mm 51.5mm - 52.4mm = 1
[1 (0.00% / 0.00%)] [343,253 / 4 (100.00%)]
56.5mm - 57.4mm 56.5mm - 57.4mm = 1
[1 (0.00% / 0.00%)] [343,254 / 3 (100.00%)]
64.5mm - 65.4mm 64.5mm - 65.4mm = 1
[1 (0.00% / 0.00%)] [343,255 / 2 (100.00%)]
79.5mm - 80.4mm 79.5mm - 80.4mm = 1
[1 (0.00% / 0.00%)] [343,256 / 1 (100.00%)]

Missing observations (529 / 0.15%)

Wind Direction

Calm Calm = 69,428
[69,428 (20.20% / 20.22%)] [0 / 0 (NA)]
NNE NNE = 11,056
[11,056 (3.22% / 3.22%)] [0 / 0 (NA)]
NE NE = 11,966
[11,966 (3.48% / 3.48%)] [0 / 0 (NA)]
ENE ENE = 18,435
[18,435 (5.36% / 5.37%)] [0 / 0 (NA)]
E E = 40,176
[40,176 (11.69% / 11.70%)] [0 / 0 (NA)]
ESE ESE = 26,619
[26,619 (7.74% / 7.75%)] [0 / 0 (NA)]
SE SE = 14,242
[14,242 (4.14% / 4.15%)] [0 / 0 (NA)]
SSE SSE = 10,681
[10,681 (3.11% / 3.11%)] [0 / 0 (NA)]
S S = 11,401
[11,401 (3.32% / 3.32%)] [0 / 0 (NA)]
SSW SSW = 15,628
[15,628 (4.55% / 4.55%)] [0 / 0 (NA)]
SW SW = 16,092
[16,092 (4.68% / 4.69%)] [0 / 0 (NA)]
WSW WSW = 9,526
[9,526 (2.77% / 2.77%)] [0 / 0 (NA)]
W W = 5,529
[5,529 (1.61% / 1.61%)] [0 / 0 (NA)]
WNW WNW = 11,331
[11,331 (3.30% / 3.30%)] [0 / 0 (NA)]
NW NW = 26,561
[26,561 (7.73% / 7.74%)] [0 / 0 (NA)]
NNW NNW = 25,894
[25,894 (7.53% / 7.54%)] [0 / 0 (NA)]
N N = 18,796
[18,796 (5.47% / 5.47%)] [0 / 0 (NA)]

Missing observations (424 / 0.12%)

Wind Speed

0.0m/s - 0.4m/s 0.0m/s - 0.4m/s = 74,189
[74,189 (21.58% / 21.61%)] [74,189 / 343,382 (21.61%)]
0.5m/s - 1.4m/s 0.5m/s - 1.4m/s = 118,877
[118,877 (34.58% / 34.62%)] [193,066 / 269,193 (56.22%)]
1.5m/s - 2.4m/s 1.5m/s - 2.4m/s = 79,267
[79,267 (23.06% / 23.08%)] [272,333 / 150,316 (79.31%)]
2.5m/s - 3.4m/s 2.5m/s - 3.4m/s = 41,755
[41,755 (12.15% / 12.16%)] [314,088 / 71,049 (91.47%)]
3.5m/s - 4.4m/s 3.5m/s - 4.4m/s = 17,585
[17,585 (5.12% / 5.12%)] [331,673 / 29,294 (96.59%)]
4.5m/s - 5.4m/s 4.5m/s - 5.4m/s = 7,527
[7,527 (2.19% / 2.19%)] [339,200 / 11,709 (98.78%)]
5.5m/s - 6.4m/s 5.5m/s - 6.4m/s = 2,880
[2,880 (0.84% / 0.84%)] [342,080 / 4,182 (99.62%)]
6.5m/s - 7.4m/s 6.5m/s - 7.4m/s = 935
[935 (0.27% / 0.27%)] [343,015 / 1,302 (99.89%)]
7.5m/s - 8.4m/s 7.5m/s - 8.4m/s = 273
[273 (0.08% / 0.08%)] [343,288 / 367 (99.97%)]
8.5m/s - 9.4m/s 8.5m/s - 9.4m/s = 65
[65 (0.02% / 0.02%)] [343,353 / 94 (99.99%)]
9.5m/s - 10.4m/s 9.5m/s - 10.4m/s = 21
[21 (0.01% / 0.01%)] [343,374 / 29 (100.00%)]
10.5m/s - 11.4m/s 10.5m/s - 11.4m/s = 7
[7 (0.00% / 0.00%)] [343,381 / 8 (100.00%)]
11.5m/s - 12.4m/s 11.5m/s - 12.4m/s = 1
[1 (0.00% / 0.00%)] [343,382 / 1 (100.00%)]

Missing observations (403 / 0.12%)

Temperature

-8.5C - -7.6C -8.5C - -7.6C = 4
[4 (0.00% / 0.00%)] [4 / 343,488 (0.00%)]
-7.5C - -6.6C -7.5C - -6.6C = 26
[26 (0.01% / 0.01%)] [30 / 343,484 (0.01%)]
-6.5C - -5.6C -6.5C - -5.6C = 139
[139 (0.04% / 0.04%)] [169 / 343,458 (0.05%)]
-5.5C - -4.6C -5.5C - -4.6C = 328
[328 (0.10% / 0.10%)] [497 / 343,319 (0.14%)]
-4.5C - -3.6C -4.5C - -3.6C = 803
[803 (0.23% / 0.23%)] [1,300 / 342,991 (0.38%)]
-3.5C - -2.6C -3.5C - -2.6C = 1,609
[1,609 (0.47% / 0.47%)] [2,909 / 342,188 (0.85%)]
-2.5C - -1.6C -2.5C - -1.6C = 2,516
[2,516 (0.73% / 0.73%)] [5,425 / 340,579 (1.58%)]
-1.5C - -0.6C -1.5C - -0.6C = 3,763
[3,763 (1.09% / 1.10%)] [9,188 / 338,063 (2.67%)]
-0.5C - 0.4C -0.5C - 0.4C = 9,922
[9,922 (2.89% / 2.89%)] [19,110 / 334,300 (5.56%)]
0.5C - 1.4C 0.5C - 1.4C = 6,514
[6,514 (1.89% / 1.90%)] [25,624 / 324,378 (7.46%)]
1.5C - 2.4C 1.5C - 2.4C = 7,352
[7,352 (2.14% / 2.14%)] [32,976 / 317,864 (9.60%)]
2.5C - 3.4C 2.5C - 3.4C = 8,280
[8,280 (2.41% / 2.41%)] [41,256 / 310,512 (12.01%)]
3.5C - 4.4C 3.5C - 4.4C = 9,288
[9,288 (2.70% / 2.70%)] [50,544 / 302,232 (14.71%)]
4.5C - 5.4C 4.5C - 5.4C = 9,775
[9,775 (2.84% / 2.85%)] [60,319 / 292,944 (17.56%)]
5.5C - 6.4C 5.5C - 6.4C = 10,604
[10,604 (3.08% / 3.09%)] [70,923 / 283,169 (20.65%)]
6.5C - 7.4C 6.5C - 7.4C = 10,950
[10,950 (3.19% / 3.19%)] [81,873 / 272,565 (23.84%)]
7.5C - 8.4C 7.5C - 8.4C = 11,257
[11,257 (3.27% / 3.28%)] [93,130 / 261,615 (27.11%)]
8.5C - 9.4C 8.5C - 9.4C = 11,459
[11,459 (3.33% / 3.34%)] [104,589 / 250,358 (30.45%)]
9.5C - 10.4C 9.5C - 10.4C = 11,416
[11,416 (3.32% / 3.32%)] [116,005 / 238,899 (33.77%)]
10.5C - 11.4C 10.5C - 11.4C = 11,023
[11,023 (3.21% / 3.21%)] [127,028 / 227,483 (36.98%)]
11.5C - 12.4C 11.5C - 12.4C = 11,095
[11,095 (3.23% / 3.23%)] [138,123 / 216,460 (40.21%)]
12.5C - 13.4C 12.5C - 13.4C = 11,356
[11,356 (3.30% / 3.31%)] [149,479 / 205,365 (43.52%)]
13.5C - 14.4C 13.5C - 14.4C = 11,468
[11,468 (3.34% / 3.34%)] [160,947 / 194,009 (46.86%)]
14.5C - 15.4C 14.5C - 15.4C = 11,586
[11,586 (3.37% / 3.37%)] [172,533 / 182,541 (50.23%)]
15.5C - 16.4C 15.5C - 16.4C = 12,296
[12,296 (3.58% / 3.58%)] [184,829 / 170,955 (53.81%)]
16.5C - 17.4C 16.5C - 17.4C = 12,990
[12,990 (3.78% / 3.78%)] [197,819 / 158,659 (57.59%)]
17.5C - 18.4C 17.5C - 18.4C = 13,703
[13,703 (3.99% / 3.99%)] [211,522 / 145,669 (61.58%)]
18.5C - 19.4C 18.5C - 19.4C = 13,884
[13,884 (4.04% / 4.04%)] [225,406 / 131,966 (65.62%)]
19.5C - 20.4C 19.5C - 20.4C = 13,596
[13,596 (3.95% / 3.96%)] [239,002 / 118,082 (69.58%)]
20.5C - 21.4C 20.5C - 21.4C = 13,505
[13,505 (3.93% / 3.93%)] [252,507 / 104,486 (73.51%)]
21.5C - 22.4C 21.5C - 22.4C = 13,193
[13,193 (3.84% / 3.84%)] [265,700 / 90,981 (77.35%)]
22.5C - 23.4C 22.5C - 23.4C = 13,400
[13,400 (3.90% / 3.90%)] [279,100 / 77,788 (81.25%)]
23.5C - 24.4C 23.5C - 24.4C = 12,418
[12,418 (3.61% / 3.62%)] [291,518 / 64,388 (84.87%)]
24.5C - 25.4C 24.5C - 25.4C = 11,285
[11,285 (3.28% / 3.29%)] [302,803 / 51,970 (88.16%)]
25.5C - 26.4C 25.5C - 26.4C = 9,596
[9,596 (2.79% / 2.79%)] [312,399 / 40,685 (90.95%)]
26.5C - 27.4C 26.5C - 27.4C = 7,501
[7,501 (2.18% / 2.18%)] [319,900 / 31,089 (93.13%)]
27.5C - 28.4C 27.5C - 28.4C = 5,845
[5,845 (1.70% / 1.70%)] [325,745 / 23,588 (94.83%)]
28.5C - 29.4C 28.5C - 29.4C = 4,657
[4,657 (1.35% / 1.36%)] [330,402 / 17,743 (96.19%)]
29.5C - 30.4C 29.5C - 30.4C = 3,767
[3,767 (1.10% / 1.10%)] [334,169 / 13,086 (97.29%)]
30.5C - 31.4C 30.5C - 31.4C = 3,112
[3,112 (0.91% / 0.91%)] [337,281 / 9,319 (98.19%)]
31.5C - 32.4C 31.5C - 32.4C = 2,606
[2,606 (0.76% / 0.76%)] [339,887 / 6,207 (98.95%)]
32.5C - 33.4C 32.5C - 33.4C = 1,754
[1,754 (0.51% / 0.51%)] [341,641 / 3,601 (99.46%)]
33.5C - 34.4C 33.5C - 34.4C = 1,084
[1,084 (0.32% / 0.32%)] [342,725 / 1,847 (99.78%)]
34.5C - 35.4C 34.5C - 35.4C = 511
[511 (0.15% / 0.15%)] [343,236 / 763 (99.93%)]
35.5C - 36.4C 35.5C - 36.4C = 183
[183 (0.05% / 0.05%)] [343,419 / 252 (99.98%)]
36.5C - 37.4C 36.5C - 37.4C = 51
[51 (0.01% / 0.01%)] [343,470 / 69 (99.99%)]
37.5C - 38.4C 37.5C - 38.4C = 14
[14 (0.00% / 0.00%)] [343,484 / 18 (100.00%)]
38.5C - 39.4C 38.5C - 39.4C = 2
[2 (0.00% / 0.00%)] [343,486 / 4 (100.00%)]
39.5C - 40.4C 39.5C - 40.4C = 2
[2 (0.00% / 0.00%)] [343,488 / 2 (100.00%)]

Missing observations (297 / 0.09%)

Sunshine Duration

0.0h 0.0h = 245,806
[245,806 (71.50% / 71.57%)] [245,806 / 343,457 (71.57%)]
0.1h 0.1h = 7,933
[7,933 (2.31% / 2.31%)] [253,739 / 97,651 (73.88%)]
0.2h 0.2h = 6,252
[6,252 (1.82% / 1.82%)] [259,991 / 89,718 (75.70%)]
0.3h 0.3h = 5,462
[5,462 (1.59% / 1.59%)] [265,453 / 83,466 (77.29%)]
0.4h 0.4h = 5,084
[5,084 (1.48% / 1.48%)] [270,537 / 78,004 (78.77%)]
0.5h 0.5h = 5,102
[5,102 (1.48% / 1.49%)] [275,639 / 72,920 (80.25%)]
0.6h 0.6h = 5,176
[5,176 (1.51% / 1.51%)] [280,815 / 67,818 (81.76%)]
0.7h 0.7h = 5,640
[5,640 (1.64% / 1.64%)] [286,455 / 62,642 (83.40%)]
0.8h 0.8h = 6,281
[6,281 (1.83% / 1.83%)] [292,736 / 57,002 (85.23%)]
0.9h 0.9h = 7,915
[7,915 (2.30% / 2.30%)] [300,651 / 50,721 (87.54%)]
1.0h 1.0h = 42,806
[42,806 (12.45% / 12.46%)] [343,457 / 42,806 (100.00%)]

Missing observations (328 / 0.10%)