Station Number 45371
Prefecture Chiba [ Local Portal ]
Location 千葉県勝浦市墨名 勝浦特別地域気象観測所 (KATSURA SHI, CHIBA KEN)
Months of Observations 504
Number of Observations 368,184
Period of Observations
Period Name Lat. Long. Height Anemometer
1974/11/01 -- 1975/12/06 KATSUURA 35.150N 140.312E 12m 0.0m
1975/12/07 -- 1988/12/31 KATSUURA 35.150N 140.312E 12m 12.3m
1989/01/01 -- 2013/12/04 KATSUURA 35.150N 140.312E 12m 12.3m
2013/12/05 -- 2017/07/99 KATSUURA 35.150N 140.312E 12m 15.2m
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
45331 OOTAKI (Chiba) 14.36km 322deg.
45361 KAMOGAWA (Chiba) 19.78km 257deg.
45326 SAKAHATA (Chiba) 21.65km 295deg.
45261 MOBARA (Chiba) 29.62km 359deg.

Statistics for the Whole Period

Precipitation

0.0mm - 0.4mm 0.0mm - 0.4mm = 339,989
[339,989 (92.34% / 92.37%)] [339,989 / 368,064 (92.37)]
0.5mm - 1.4mm 0.5mm - 1.4mm = 13,280
[13,280 (3.61% / 3.61%)] [353,269 / 28,075 (95.98)]
1.5mm - 2.4mm 1.5mm - 2.4mm = 5,258
[5,258 (1.43% / 1.43%)] [358,527 / 14,795 (97.41)]
2.5mm - 3.4mm 2.5mm - 3.4mm = 2,865
[2,865 (0.78% / 0.78%)] [361,392 / 9,537 (98.19)]
3.5mm - 4.4mm 3.5mm - 4.4mm = 1,783
[1,783 (0.48% / 0.48%)] [363,175 / 6,672 (98.67)]
4.5mm - 5.4mm 4.5mm - 5.4mm = 1,142
[1,142 (0.31% / 0.31%)] [364,317 / 4,889 (98.98)]
5.5mm - 6.4mm 5.5mm - 6.4mm = 844
[844 (0.23% / 0.23%)] [365,161 / 3,747 (99.21)]
6.5mm - 7.4mm 6.5mm - 7.4mm = 648
[648 (0.18% / 0.18%)] [365,809 / 2,903 (99.39)]
7.5mm - 8.4mm 7.5mm - 8.4mm = 431
[431 (0.12% / 0.12%)] [366,240 / 2,255 (99.50)]
8.5mm - 9.4mm 8.5mm - 9.4mm = 348
[348 (0.09% / 0.09%)] [366,588 / 1,824 (99.60)]
9.5mm - 10.4mm 9.5mm - 10.4mm = 266
[266 (0.07% / 0.07%)] [366,854 / 1,476 (99.67)]
10.5mm - 11.4mm 10.5mm - 11.4mm = 189
[189 (0.05% / 0.05%)] [367,043 / 1,210 (99.72)]
11.5mm - 12.4mm 11.5mm - 12.4mm = 181
[181 (0.05% / 0.05%)] [367,224 / 1,021 (99.77)]
12.5mm - 13.4mm 12.5mm - 13.4mm = 137
[137 (0.04% / 0.04%)] [367,361 / 840 (99.81)]
13.5mm - 14.4mm 13.5mm - 14.4mm = 101
[101 (0.03% / 0.03%)] [367,462 / 703 (99.84)]
14.5mm - 15.4mm 14.5mm - 15.4mm = 80
[80 (0.02% / 0.02%)] [367,542 / 602 (99.86)]
15.5mm - 16.4mm 15.5mm - 16.4mm = 55
[55 (0.01% / 0.01%)] [367,597 / 522 (99.87)]
16.5mm - 17.4mm 16.5mm - 17.4mm = 60
[60 (0.02% / 0.02%)] [367,657 / 467 (99.89)]
17.5mm - 18.4mm 17.5mm - 18.4mm = 66
[66 (0.02% / 0.02%)] [367,723 / 407 (99.91)]
18.5mm - 19.4mm 18.5mm - 19.4mm = 45
[45 (0.01% / 0.01%)] [367,768 / 341 (99.92)]
19.5mm - 20.4mm 19.5mm - 20.4mm = 28
[28 (0.01% / 0.01%)] [367,796 / 296 (99.93)]
20.5mm - 21.4mm 20.5mm - 21.4mm = 24
[24 (0.01% / 0.01%)] [367,820 / 268 (99.93)]
21.5mm - 22.4mm 21.5mm - 22.4mm = 24
[24 (0.01% / 0.01%)] [367,844 / 244 (99.94)]
22.5mm - 23.4mm 22.5mm - 23.4mm = 24
[24 (0.01% / 0.01%)] [367,868 / 220 (99.95)]
23.5mm - 24.4mm 23.5mm - 24.4mm = 14
[14 (0.00% / 0.00%)] [367,882 / 196 (99.95)]
24.5mm - 25.4mm 24.5mm - 25.4mm = 12
[12 (0.00% / 0.00%)] [367,894 / 182 (99.95)]
25.5mm - 26.4mm 25.5mm - 26.4mm = 14
[14 (0.00% / 0.00%)] [367,908 / 170 (99.96)]
26.5mm - 27.4mm 26.5mm - 27.4mm = 20
[20 (0.01% / 0.01%)] [367,928 / 156 (99.96)]
27.5mm - 28.4mm 27.5mm - 28.4mm = 18
[18 (0.00% / 0.00%)] [367,946 / 136 (99.97)]
28.5mm - 29.4mm 28.5mm - 29.4mm = 20
[20 (0.01% / 0.01%)] [367,966 / 118 (99.97)]
29.5mm - 30.4mm 29.5mm - 30.4mm = 11
[11 (0.00% / 0.00%)] [367,977 / 98 (99.98)]
30.5mm - 31.4mm 30.5mm - 31.4mm = 7
[7 (0.00% / 0.00%)] [367,984 / 87 (99.98)]
31.5mm - 32.4mm 31.5mm - 32.4mm = 6
[6 (0.00% / 0.00%)] [367,990 / 80 (99.98)]
32.5mm - 33.4mm 32.5mm - 33.4mm = 4
[4 (0.00% / 0.00%)] [367,994 / 74 (99.98)]
33.5mm - 34.4mm 33.5mm - 34.4mm = 12
[12 (0.00% / 0.00%)] [368,006 / 70 (99.98)]
34.5mm - 35.4mm 34.5mm - 35.4mm = 3
[3 (0.00% / 0.00%)] [368,009 / 58 (99.99)]
35.5mm - 36.4mm 35.5mm - 36.4mm = 4
[4 (0.00% / 0.00%)] [368,013 / 55 (99.99)]
36.5mm - 37.4mm 36.5mm - 37.4mm = 5
[5 (0.00% / 0.00%)] [368,018 / 51 (99.99)]
37.5mm - 38.4mm 37.5mm - 38.4mm = 5
[5 (0.00% / 0.00%)] [368,023 / 46 (99.99)]
38.5mm - 39.4mm 38.5mm - 39.4mm = 4
[4 (0.00% / 0.00%)] [368,027 / 41 (99.99)]
39.5mm - 40.4mm 39.5mm - 40.4mm = 2
[2 (0.00% / 0.00%)] [368,029 / 37 (99.99)]
40.5mm - 41.4mm 40.5mm - 41.4mm = 3
[3 (0.00% / 0.00%)] [368,032 / 35 (99.99)]
41.5mm - 42.4mm 41.5mm - 42.4mm = 1
[1 (0.00% / 0.00%)] [368,033 / 32 (99.99)]
42.5mm - 43.4mm 42.5mm - 43.4mm = 2
[2 (0.00% / 0.00%)] [368,035 / 31 (99.99)]
43.5mm - 44.4mm 43.5mm - 44.4mm = 1
[1 (0.00% / 0.00%)] [368,036 / 29 (99.99)]
44.5mm - 45.4mm 44.5mm - 45.4mm = 1
[1 (0.00% / 0.00%)] [368,037 / 28 (99.99)]
45.5mm - 46.4mm 45.5mm - 46.4mm = 5
[5 (0.00% / 0.00%)] [368,042 / 27 (99.99)]
46.5mm - 47.4mm 46.5mm - 47.4mm = 3
[3 (0.00% / 0.00%)] [368,045 / 22 (99.99)]
47.5mm - 48.4mm 47.5mm - 48.4mm = 2
[2 (0.00% / 0.00%)] [368,047 / 19 (100.00)]
48.5mm - 49.4mm 48.5mm - 49.4mm = 1
[1 (0.00% / 0.00%)] [368,048 / 17 (100.00)]
49.5mm - 50.4mm 49.5mm - 50.4mm = 3
[3 (0.00% / 0.00%)] [368,051 / 16 (100.00)]
50.5mm - 51.4mm 50.5mm - 51.4mm = 4
[4 (0.00% / 0.00%)] [368,055 / 13 (100.00)]
51.5mm - 52.4mm 51.5mm - 52.4mm = 1
[1 (0.00% / 0.00%)] [368,056 / 9 (100.00)]
53.5mm - 54.4mm 53.5mm - 54.4mm = 3
[3 (0.00% / 0.00%)] [368,059 / 8 (100.00)]
65.5mm - 66.4mm 65.5mm - 66.4mm = 1
[1 (0.00% / 0.00%)] [368,060 / 5 (100.00)]
67.5mm - 68.4mm 67.5mm - 68.4mm = 2
[2 (0.00% / 0.00%)] [368,062 / 4 (100.00)]
77.5mm - 78.4mm 77.5mm - 78.4mm = 1
[1 (0.00% / 0.00%)] [368,063 / 2 (100.00)]
90.5mm - 91.4mm 90.5mm - 91.4mm = 1
[1 (0.00% / 0.00%)] [368,064 / 1 (100.00)]

Missing observations (120 / 0.03%)

Wind Direction

Calm Calm = 10,707
[10,707 (2.91% / 2.91%)]
NNE NNE = 64,578
[64,578 (17.54% / 17.54%)]
NE NE = 23,662
[23,662 (6.43% / 6.43%)]
ENE ENE = 14,989
[14,989 (4.07% / 4.07%)]
E E = 9,079
[9,079 (2.47% / 2.47%)]
ESE ESE = 4,601
[4,601 (1.25% / 1.25%)]
SE SE = 3,764
[3,764 (1.02% / 1.02%)]
SSE SSE = 5,269
[5,269 (1.43% / 1.43%)]
S S = 13,317
[13,317 (3.62% / 3.62%)]
SSW SSW = 44,181
[44,181 (12.00% / 12.00%)]
SW SW = 21,427
[21,427 (5.82% / 5.82%)]
WSW WSW = 12,101
[12,101 (3.29% / 3.29%)]
W W = 15,670
[15,670 (4.26% / 4.26%)]
WNW WNW = 4,321
[4,321 (1.17% / 1.17%)]
NW NW = 6,489
[6,489 (1.76% / 1.76%)]
NNW NNW = 49,870
[49,870 (13.54% / 13.55%)]
N N = 64,068
[64,068 (17.40% / 17.41%)]

Missing observations (91 / 0.02%)

Wind Speed

0.0m/s - 0.4m/s 0.0m/s - 0.4m/s = 11,227
[11,227 (3.05% / 3.05%)] [11,227 / 368,094 (3.05)]
0.5m/s - 1.4m/s 0.5m/s - 1.4m/s = 49,816
[49,816 (13.53% / 13.53%)] [61,043 / 356,867 (16.58)]
1.5m/s - 2.4m/s 1.5m/s - 2.4m/s = 79,393
[79,393 (21.56% / 21.57%)] [140,436 / 307,051 (38.15)]
2.5m/s - 3.4m/s 2.5m/s - 3.4m/s = 81,220
[81,220 (22.06% / 22.07%)] [221,656 / 227,658 (60.22)]
3.5m/s - 4.4m/s 3.5m/s - 4.4m/s = 62,874
[62,874 (17.08% / 17.08%)] [284,530 / 146,438 (77.30)]
4.5m/s - 5.4m/s 4.5m/s - 5.4m/s = 38,781
[38,781 (10.53% / 10.54%)] [323,311 / 83,564 (87.83)]
5.5m/s - 6.4m/s 5.5m/s - 6.4m/s = 20,304
[20,304 (5.51% / 5.52%)] [343,615 / 44,783 (93.35)]
6.5m/s - 7.4m/s 6.5m/s - 7.4m/s = 10,609
[10,609 (2.88% / 2.88%)] [354,224 / 24,479 (96.23)]
7.5m/s - 8.4m/s 7.5m/s - 8.4m/s = 5,890
[5,890 (1.60% / 1.60%)] [360,114 / 13,870 (97.83)]
8.5m/s - 9.4m/s 8.5m/s - 9.4m/s = 3,356
[3,356 (0.91% / 0.91%)] [363,470 / 7,980 (98.74)]
9.5m/s - 10.4m/s 9.5m/s - 10.4m/s = 1,908
[1,908 (0.52% / 0.52%)] [365,378 / 4,624 (99.26)]
10.5m/s - 11.4m/s 10.5m/s - 11.4m/s = 1,188
[1,188 (0.32% / 0.32%)] [366,566 / 2,716 (99.58)]
11.5m/s - 12.4m/s 11.5m/s - 12.4m/s = 674
[674 (0.18% / 0.18%)] [367,240 / 1,528 (99.77)]
12.5m/s - 13.4m/s 12.5m/s - 13.4m/s = 381
[381 (0.10% / 0.10%)] [367,621 / 854 (99.87)]
13.5m/s - 14.4m/s 13.5m/s - 14.4m/s = 194
[194 (0.05% / 0.05%)] [367,815 / 473 (99.92)]
14.5m/s - 15.4m/s 14.5m/s - 15.4m/s = 104
[104 (0.03% / 0.03%)] [367,919 / 279 (99.95)]
15.5m/s - 16.4m/s 15.5m/s - 16.4m/s = 81
[81 (0.02% / 0.02%)] [368,000 / 175 (99.97)]
16.5m/s - 17.4m/s 16.5m/s - 17.4m/s = 39
[39 (0.01% / 0.01%)] [368,039 / 94 (99.99)]
17.5m/s - 18.4m/s 17.5m/s - 18.4m/s = 19
[19 (0.01% / 0.01%)] [368,058 / 55 (99.99)]
18.5m/s - 19.4m/s 18.5m/s - 19.4m/s = 9
[9 (0.00% / 0.00%)] [368,067 / 36 (99.99)]
19.5m/s - 20.4m/s 19.5m/s - 20.4m/s = 12
[12 (0.00% / 0.00%)] [368,079 / 27 (100.00)]
20.5m/s - 21.4m/s 20.5m/s - 21.4m/s = 7
[7 (0.00% / 0.00%)] [368,086 / 15 (100.00)]
21.5m/s - 22.4m/s 21.5m/s - 22.4m/s = 2
[2 (0.00% / 0.00%)] [368,088 / 8 (100.00)]
22.5m/s - 23.4m/s 22.5m/s - 23.4m/s = 1
[1 (0.00% / 0.00%)] [368,089 / 6 (100.00)]
23.5m/s - 24.4m/s 23.5m/s - 24.4m/s = 2
[2 (0.00% / 0.00%)] [368,091 / 5 (100.00)]
25.5m/s - 26.4m/s 25.5m/s - 26.4m/s = 2
[2 (0.00% / 0.00%)] [368,093 / 3 (100.00)]
29.5m/s - 30.4m/s 29.5m/s - 30.4m/s = 1
[1 (0.00% / 0.00%)] [368,094 / 1 (100.00)]

Missing observations (90 / 0.02%)

Temperature

-9.5C - -8.6C -9.5C - -8.6C = 3
[3 (0.00% / 0.00%)] [3 / 368,115 (0.00)]
-8.5C - -7.6C -8.5C - -7.6C = 4
[4 (0.00% / 0.00%)] [7 / 368,112 (0.00)]
-7.5C - -6.6C -7.5C - -6.6C = 6
[6 (0.00% / 0.00%)] [13 / 368,108 (0.00)]
-6.5C - -5.6C -6.5C - -5.6C = 17
[17 (0.00% / 0.00%)] [30 / 368,102 (0.01)]
-5.5C - -4.6C -5.5C - -4.6C = 3
[3 (0.00% / 0.00%)] [33 / 368,085 (0.01)]
-4.5C - -3.6C -4.5C - -3.6C = 11
[11 (0.00% / 0.00%)] [44 / 368,082 (0.01)]
-3.5C - -2.6C -3.5C - -2.6C = 27
[27 (0.01% / 0.01%)] [71 / 368,071 (0.02)]
-2.5C - -1.6C -2.5C - -1.6C = 71
[71 (0.02% / 0.02%)] [142 / 368,044 (0.04)]
-1.5C - -0.6C -1.5C - -0.6C = 208
[208 (0.06% / 0.06%)] [350 / 367,973 (0.10)]
-0.5C - 0.4C -0.5C - 0.4C = 2,047
[2,047 (0.56% / 0.56%)] [2,397 / 367,765 (0.65)]
0.5C - 1.4C 0.5C - 1.4C = 3,040
[3,040 (0.83% / 0.83%)] [5,437 / 365,718 (1.48)]
1.5C - 2.4C 1.5C - 2.4C = 5,269
[5,269 (1.43% / 1.43%)] [10,706 / 362,678 (2.91)]
2.5C - 3.4C 2.5C - 3.4C = 7,397
[7,397 (2.01% / 2.01%)] [18,103 / 357,409 (4.92)]
3.5C - 4.4C 3.5C - 4.4C = 9,070
[9,070 (2.46% / 2.46%)] [27,173 / 350,012 (7.38)]
4.5C - 5.4C 4.5C - 5.4C = 10,635
[10,635 (2.89% / 2.89%)] [37,808 / 340,942 (10.27)]
5.5C - 6.4C 5.5C - 6.4C = 11,664
[11,664 (3.17% / 3.17%)] [49,472 / 330,307 (13.44)]
6.5C - 7.4C 6.5C - 7.4C = 12,594
[12,594 (3.42% / 3.42%)] [62,066 / 318,643 (16.86)]
7.5C - 8.4C 7.5C - 8.4C = 12,476
[12,476 (3.39% / 3.39%)] [74,542 / 306,049 (20.25)]
8.5C - 9.4C 8.5C - 9.4C = 13,228
[13,228 (3.59% / 3.59%)] [87,770 / 293,573 (23.84)]
9.5C - 10.4C 9.5C - 10.4C = 12,565
[12,565 (3.41% / 3.41%)] [100,335 / 280,345 (27.26)]
10.5C - 11.4C 10.5C - 11.4C = 12,995
[12,995 (3.53% / 3.53%)] [113,330 / 267,780 (30.79)]
11.5C - 12.4C 11.5C - 12.4C = 12,683
[12,683 (3.44% / 3.45%)] [126,013 / 254,785 (34.23)]
12.5C - 13.4C 12.5C - 13.4C = 12,783
[12,783 (3.47% / 3.47%)] [138,796 / 242,102 (37.70)]
13.5C - 14.4C 13.5C - 14.4C = 13,644
[13,644 (3.71% / 3.71%)] [152,440 / 229,319 (41.41)]
14.5C - 15.4C 14.5C - 15.4C = 14,472
[14,472 (3.93% / 3.93%)] [166,912 / 215,675 (45.34)]
15.5C - 16.4C 15.5C - 16.4C = 15,334
[15,334 (4.16% / 4.17%)] [182,246 / 201,203 (49.51)]
16.5C - 17.4C 16.5C - 17.4C = 17,042
[17,042 (4.63% / 4.63%)] [199,288 / 185,869 (54.14)]
17.5C - 18.4C 17.5C - 18.4C = 17,628
[17,628 (4.79% / 4.79%)] [216,916 / 168,827 (58.93)]
18.5C - 19.4C 18.5C - 19.4C = 17,892
[17,892 (4.86% / 4.86%)] [234,808 / 151,199 (63.79)]
19.5C - 20.4C 19.5C - 20.4C = 17,175
[17,175 (4.66% / 4.67%)] [251,983 / 133,307 (68.45)]
20.5C - 21.4C 20.5C - 21.4C = 18,406
[18,406 (5.00% / 5.00%)] [270,389 / 116,132 (73.45)]
21.5C - 22.4C 21.5C - 22.4C = 17,556
[17,556 (4.77% / 4.77%)] [287,945 / 97,726 (78.22)]
22.5C - 23.4C 22.5C - 23.4C = 16,608
[16,608 (4.51% / 4.51%)] [304,553 / 80,170 (82.73)]
23.5C - 24.4C 23.5C - 24.4C = 16,178
[16,178 (4.39% / 4.39%)] [320,731 / 63,562 (87.13)]
24.5C - 25.4C 24.5C - 25.4C = 14,933
[14,933 (4.06% / 4.06%)] [335,664 / 47,384 (91.18)]
25.5C - 26.4C 25.5C - 26.4C = 12,529
[12,529 (3.40% / 3.40%)] [348,193 / 32,451 (94.59)]
26.5C - 27.4C 26.5C - 27.4C = 9,182
[9,182 (2.49% / 2.49%)] [357,375 / 19,922 (97.08)]
27.5C - 28.4C 27.5C - 28.4C = 5,815
[5,815 (1.58% / 1.58%)] [363,190 / 10,740 (98.66)]
28.5C - 29.4C 28.5C - 29.4C = 3,248
[3,248 (0.88% / 0.88%)] [366,438 / 4,925 (99.54)]
29.5C - 30.4C 29.5C - 30.4C = 1,265
[1,265 (0.34% / 0.34%)] [367,703 / 1,677 (99.89)]
30.5C - 31.4C 30.5C - 31.4C = 342
[342 (0.09% / 0.09%)] [368,045 / 412 (99.98)]
31.5C - 32.4C 31.5C - 32.4C = 59
[59 (0.02% / 0.02%)] [368,104 / 70 (100.00)]
32.5C - 33.4C 32.5C - 33.4C = 9
[9 (0.00% / 0.00%)] [368,113 / 11 (100.00)]
33.5C - 34.4C 33.5C - 34.4C = 1
[1 (0.00% / 0.00%)] [368,114 / 2 (100.00)]
34.5C - 35.4C 34.5C - 35.4C = 1
[1 (0.00% / 0.00%)] [368,115 / 1 (100.00)]

Missing observations (69 / 0.02%)

Sunshine Duration

0.0h 0.0h = 252,616
[252,616 (68.61% / 68.96%)] [252,616 / 366,347 (68.96)]
0.1h 0.1h = 8,901
[8,901 (2.42% / 2.43%)] [261,517 / 113,731 (71.39)]
0.2h 0.2h = 6,756
[6,756 (1.83% / 1.84%)] [268,273 / 104,830 (73.23)]
0.3h 0.3h = 5,885
[5,885 (1.60% / 1.61%)] [274,158 / 98,074 (74.84)]
0.4h 0.4h = 5,530
[5,530 (1.50% / 1.51%)] [279,688 / 92,189 (76.35)]
0.5h 0.5h = 5,351
[5,351 (1.45% / 1.46%)] [285,039 / 86,659 (77.81)]
0.6h 0.6h = 5,287
[5,287 (1.44% / 1.44%)] [290,326 / 81,308 (79.25)]
0.7h 0.7h = 5,555
[5,555 (1.51% / 1.52%)] [295,881 / 76,021 (80.77)]
0.8h 0.8h = 6,484
[6,484 (1.76% / 1.77%)] [302,365 / 70,466 (82.54)]
0.9h 0.9h = 8,762
[8,762 (2.38% / 2.39%)] [311,127 / 63,982 (84.93)]
1.0h 1.0h = 55,220
[55,220 (15.00% / 15.07%)] [366,347 / 55,220 (100.00)]

Missing observations (1,837 / 0.50%)