Station Number 45121
Prefecture Chiba [ Local Portal ]
Location 千葉県成田市古込字込前 成田航空地方気象台 (NARITA SHI, CHIBA KEN)
Months of Observations 153
Number of Observations 111,768
Period of Observations
Period Name Lat. Long. Height Anemometer
1974/11/01 -- 1978/01/09 NARITA 35.765N 140.388E 41m 0.0m
2003/01/01 -- 2015/08/99 NARITA 35.763N 140.385E 41m 11.1m
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
45181 YOKOSHIBAHIKARI (Chiba) 14.57km 143deg.
45081 KATORI (Chiba) 14.93km 45deg.
45116 SAKURA (Chiba) 16.12km 256deg.
45036 SAWARA (Chiba) 18.96km 30deg.
40426 RYUGASAKI (Ibaraki) 21.05km 312deg.
40391 EDOSAKI (Ibaraki) 22.63km 344deg.
45061 ABIKO (Chiba) 27.22km 294deg.
45086 TONOSHO (Chiba) 27.90km 76deg.

Statistics for the Whole Period

Precipitation

0.0mm - 0.4mm 0.0mm - 0.4mm = 103,193
[103,193 (92.33% / 92.97%)] [103,193 / 110,991 (92.97%)]
0.5mm - 1.4mm 0.5mm - 1.4mm = 4,198
[4,198 (3.76% / 3.78%)] [107,391 / 7,798 (96.76%)]
1.5mm - 2.4mm 1.5mm - 2.4mm = 1,413
[1,413 (1.26% / 1.27%)] [108,804 / 3,600 (98.03%)]
2.5mm - 3.4mm 2.5mm - 3.4mm = 759
[759 (0.68% / 0.68%)] [109,563 / 2,187 (98.71%)]
3.5mm - 4.4mm 3.5mm - 4.4mm = 398
[398 (0.36% / 0.36%)] [109,961 / 1,428 (99.07%)]
4.5mm - 5.4mm 4.5mm - 5.4mm = 257
[257 (0.23% / 0.23%)] [110,218 / 1,030 (99.30%)]
5.5mm - 6.4mm 5.5mm - 6.4mm = 178
[178 (0.16% / 0.16%)] [110,396 / 773 (99.46%)]
6.5mm - 7.4mm 6.5mm - 7.4mm = 137
[137 (0.12% / 0.12%)] [110,533 / 595 (99.59%)]
7.5mm - 8.4mm 7.5mm - 8.4mm = 91
[91 (0.08% / 0.08%)] [110,624 / 458 (99.67%)]
8.5mm - 9.4mm 8.5mm - 9.4mm = 65
[65 (0.06% / 0.06%)] [110,689 / 367 (99.73%)]
9.5mm - 10.4mm 9.5mm - 10.4mm = 68
[68 (0.06% / 0.06%)] [110,757 / 302 (99.79%)]
10.5mm - 11.4mm 10.5mm - 11.4mm = 42
[42 (0.04% / 0.04%)] [110,799 / 234 (99.83%)]
11.5mm - 12.4mm 11.5mm - 12.4mm = 33
[33 (0.03% / 0.03%)] [110,832 / 192 (99.86%)]
12.5mm - 13.4mm 12.5mm - 13.4mm = 27
[27 (0.02% / 0.02%)] [110,859 / 159 (99.88%)]
13.5mm - 14.4mm 13.5mm - 14.4mm = 17
[17 (0.02% / 0.02%)] [110,876 / 132 (99.90%)]
14.5mm - 15.4mm 14.5mm - 15.4mm = 16
[16 (0.01% / 0.01%)] [110,892 / 115 (99.91%)]
15.5mm - 16.4mm 15.5mm - 16.4mm = 9
[9 (0.01% / 0.01%)] [110,901 / 99 (99.92%)]
16.5mm - 17.4mm 16.5mm - 17.4mm = 12
[12 (0.01% / 0.01%)] [110,913 / 90 (99.93%)]
17.5mm - 18.4mm 17.5mm - 18.4mm = 13
[13 (0.01% / 0.01%)] [110,926 / 78 (99.94%)]
18.5mm - 19.4mm 18.5mm - 19.4mm = 9
[9 (0.01% / 0.01%)] [110,935 / 65 (99.95%)]
19.5mm - 20.4mm 19.5mm - 20.4mm = 12
[12 (0.01% / 0.01%)] [110,947 / 56 (99.96%)]
20.5mm - 21.4mm 20.5mm - 21.4mm = 3
[3 (0.00% / 0.00%)] [110,950 / 44 (99.96%)]
21.5mm - 22.4mm 21.5mm - 22.4mm = 6
[6 (0.01% / 0.01%)] [110,956 / 41 (99.97%)]
22.5mm - 23.4mm 22.5mm - 23.4mm = 2
[2 (0.00% / 0.00%)] [110,958 / 35 (99.97%)]
23.5mm - 24.4mm 23.5mm - 24.4mm = 2
[2 (0.00% / 0.00%)] [110,960 / 33 (99.97%)]
25.5mm - 26.4mm 25.5mm - 26.4mm = 6
[6 (0.01% / 0.01%)] [110,966 / 31 (99.98%)]
26.5mm - 27.4mm 26.5mm - 27.4mm = 3
[3 (0.00% / 0.00%)] [110,969 / 25 (99.98%)]
27.5mm - 28.4mm 27.5mm - 28.4mm = 1
[1 (0.00% / 0.00%)] [110,970 / 22 (99.98%)]
28.5mm - 29.4mm 28.5mm - 29.4mm = 5
[5 (0.00% / 0.00%)] [110,975 / 21 (99.99%)]
29.5mm - 30.4mm 29.5mm - 30.4mm = 2
[2 (0.00% / 0.00%)] [110,977 / 16 (99.99%)]
30.5mm - 31.4mm 30.5mm - 31.4mm = 1
[1 (0.00% / 0.00%)] [110,978 / 14 (99.99%)]
31.5mm - 32.4mm 31.5mm - 32.4mm = 1
[1 (0.00% / 0.00%)] [110,979 / 13 (99.99%)]
32.5mm - 33.4mm 32.5mm - 33.4mm = 1
[1 (0.00% / 0.00%)] [110,980 / 12 (99.99%)]
33.5mm - 34.4mm 33.5mm - 34.4mm = 1
[1 (0.00% / 0.00%)] [110,981 / 11 (99.99%)]
35.5mm - 36.4mm 35.5mm - 36.4mm = 1
[1 (0.00% / 0.00%)] [110,982 / 10 (99.99%)]
37.5mm - 38.4mm 37.5mm - 38.4mm = 2
[2 (0.00% / 0.00%)] [110,984 / 9 (99.99%)]
38.5mm - 39.4mm 38.5mm - 39.4mm = 3
[3 (0.00% / 0.00%)] [110,987 / 7 (100.00%)]
39.5mm - 40.4mm 39.5mm - 40.4mm = 1
[1 (0.00% / 0.00%)] [110,988 / 4 (100.00%)]
43.5mm - 44.4mm 43.5mm - 44.4mm = 1
[1 (0.00% / 0.00%)] [110,989 / 3 (100.00%)]
44.5mm - 45.4mm 44.5mm - 45.4mm = 1
[1 (0.00% / 0.00%)] [110,990 / 2 (100.00%)]
68.5mm - 69.4mm 68.5mm - 69.4mm = 1
[1 (0.00% / 0.00%)] [110,991 / 1 (100.00%)]

Missing observations (777 / 0.70%)

Wind Direction

Calm Calm = 665
[665 (0.59% / 0.71%)] [0 / 0 (NA)]
NNE NNE = 11,063
[11,063 (9.90% / 11.84%)] [0 / 0 (NA)]
NE NE = 7,281
[7,281 (6.51% / 7.79%)] [0 / 0 (NA)]
ENE ENE = 4,396
[4,396 (3.93% / 4.71%)] [0 / 0 (NA)]
E E = 3,305
[3,305 (2.96% / 3.54%)] [0 / 0 (NA)]
ESE ESE = 4,098
[4,098 (3.67% / 4.39%)] [0 / 0 (NA)]
SE SE = 6,332
[6,332 (5.67% / 6.78%)] [0 / 0 (NA)]
SSE SSE = 7,380
[7,380 (6.60% / 7.90%)] [0 / 0 (NA)]
S S = 5,855
[5,855 (5.24% / 6.27%)] [0 / 0 (NA)]
SSW SSW = 4,674
[4,674 (4.18% / 5.00%)] [0 / 0 (NA)]
SW SW = 4,750
[4,750 (4.25% / 5.08%)] [0 / 0 (NA)]
WSW WSW = 2,806
[2,806 (2.51% / 3.00%)] [0 / 0 (NA)]
W W = 2,745
[2,745 (2.46% / 2.94%)] [0 / 0 (NA)]
WNW WNW = 4,957
[4,957 (4.44% / 5.31%)] [0 / 0 (NA)]
NW NW = 8,490
[8,490 (7.60% / 9.09%)] [0 / 0 (NA)]
NNW NNW = 6,983
[6,983 (6.25% / 7.47%)] [0 / 0 (NA)]
N N = 7,649
[7,649 (6.84% / 8.19%)] [0 / 0 (NA)]

Missing observations (18,339 / 16.41%)

Wind Speed

0.0m/s - 0.4m/s 0.0m/s - 0.4m/s = 1,224
[1,224 (1.10% / 1.31%)] [1,224 / 93,430 (1.31%)]
0.5m/s - 1.4m/s 0.5m/s - 1.4m/s = 11,067
[11,067 (9.90% / 11.85%)] [12,291 / 92,206 (13.16%)]
1.5m/s - 2.4m/s 1.5m/s - 2.4m/s = 19,672
[19,672 (17.60% / 21.06%)] [31,963 / 81,139 (34.21%)]
2.5m/s - 3.4m/s 2.5m/s - 3.4m/s = 19,058
[19,058 (17.05% / 20.40%)] [51,021 / 61,467 (54.61%)]
3.5m/s - 4.4m/s 3.5m/s - 4.4m/s = 15,259
[15,259 (13.65% / 16.33%)] [66,280 / 42,409 (70.94%)]
4.5m/s - 5.4m/s 4.5m/s - 5.4m/s = 10,922
[10,922 (9.77% / 11.69%)] [77,202 / 27,150 (82.63%)]
5.5m/s - 6.4m/s 5.5m/s - 6.4m/s = 6,994
[6,994 (6.26% / 7.49%)] [84,196 / 16,228 (90.12%)]
6.5m/s - 7.4m/s 6.5m/s - 7.4m/s = 4,158
[4,158 (3.72% / 4.45%)] [88,354 / 9,234 (94.57%)]
7.5m/s - 8.4m/s 7.5m/s - 8.4m/s = 2,332
[2,332 (2.09% / 2.50%)] [90,686 / 5,076 (97.06%)]
8.5m/s - 9.4m/s 8.5m/s - 9.4m/s = 1,294
[1,294 (1.16% / 1.38%)] [91,980 / 2,744 (98.45%)]
9.5m/s - 10.4m/s 9.5m/s - 10.4m/s = 663
[663 (0.59% / 0.71%)] [92,643 / 1,450 (99.16%)]
10.5m/s - 11.4m/s 10.5m/s - 11.4m/s = 376
[376 (0.34% / 0.40%)] [93,019 / 787 (99.56%)]
11.5m/s - 12.4m/s 11.5m/s - 12.4m/s = 198
[198 (0.18% / 0.21%)] [93,217 / 411 (99.77%)]
12.5m/s - 13.4m/s 12.5m/s - 13.4m/s = 104
[104 (0.09% / 0.11%)] [93,321 / 213 (99.88%)]
13.5m/s - 14.4m/s 13.5m/s - 14.4m/s = 53
[53 (0.05% / 0.06%)] [93,374 / 109 (99.94%)]
14.5m/s - 15.4m/s 14.5m/s - 15.4m/s = 33
[33 (0.03% / 0.04%)] [93,407 / 56 (99.98%)]
15.5m/s - 16.4m/s 15.5m/s - 16.4m/s = 9
[9 (0.01% / 0.01%)] [93,416 / 23 (99.99%)]
16.5m/s - 17.4m/s 16.5m/s - 17.4m/s = 8
[8 (0.01% / 0.01%)] [93,424 / 14 (99.99%)]
17.5m/s - 18.4m/s 17.5m/s - 18.4m/s = 4
[4 (0.00% / 0.00%)] [93,428 / 6 (100.00%)]
18.5m/s - 19.4m/s 18.5m/s - 19.4m/s = 2
[2 (0.00% / 0.00%)] [93,430 / 2 (100.00%)]

Missing observations (18,338 / 16.41%)

Temperature

-7.5C - -6.6C -7.5C - -6.6C = 3
[3 (0.00% / 0.00%)] [3 / 93,427 (0.00%)]
-6.5C - -5.6C -6.5C - -5.6C = 23
[23 (0.02% / 0.02%)] [26 / 93,424 (0.03%)]
-5.5C - -4.6C -5.5C - -4.6C = 63
[63 (0.06% / 0.07%)] [89 / 93,401 (0.10%)]
-4.5C - -3.6C -4.5C - -3.6C = 150
[150 (0.13% / 0.16%)] [239 / 93,338 (0.26%)]
-3.5C - -2.6C -3.5C - -2.6C = 350
[350 (0.31% / 0.37%)] [589 / 93,188 (0.63%)]
-2.5C - -1.6C -2.5C - -1.6C = 529
[529 (0.47% / 0.57%)] [1,118 / 92,838 (1.20%)]
-1.5C - -0.6C -1.5C - -0.6C = 759
[759 (0.68% / 0.81%)] [1,877 / 92,309 (2.01%)]
-0.5C - 0.4C -0.5C - 0.4C = 2,419
[2,419 (2.16% / 2.59%)] [4,296 / 91,550 (4.60%)]
0.5C - 1.4C 0.5C - 1.4C = 1,823
[1,823 (1.63% / 1.95%)] [6,119 / 89,131 (6.55%)]
1.5C - 2.4C 1.5C - 2.4C = 2,044
[2,044 (1.83% / 2.19%)] [8,163 / 87,308 (8.74%)]
2.5C - 3.4C 2.5C - 3.4C = 2,558
[2,558 (2.29% / 2.74%)] [10,721 / 85,264 (11.48%)]
3.5C - 4.4C 3.5C - 4.4C = 2,789
[2,789 (2.50% / 2.99%)] [13,510 / 82,706 (14.46%)]
4.5C - 5.4C 4.5C - 5.4C = 3,149
[3,149 (2.82% / 3.37%)] [16,659 / 79,917 (17.83%)]
5.5C - 6.4C 5.5C - 6.4C = 3,146
[3,146 (2.81% / 3.37%)] [19,805 / 76,768 (21.20%)]
6.5C - 7.4C 6.5C - 7.4C = 3,352
[3,352 (3.00% / 3.59%)] [23,157 / 73,622 (24.79%)]
7.5C - 8.4C 7.5C - 8.4C = 3,243
[3,243 (2.90% / 3.47%)] [26,400 / 70,270 (28.26%)]
8.5C - 9.4C 8.5C - 9.4C = 3,215
[3,215 (2.88% / 3.44%)] [29,615 / 67,027 (31.70%)]
9.5C - 10.4C 9.5C - 10.4C = 3,045
[3,045 (2.72% / 3.26%)] [32,660 / 63,812 (34.96%)]
10.5C - 11.4C 10.5C - 11.4C = 2,893
[2,893 (2.59% / 3.10%)] [35,553 / 60,767 (38.05%)]
11.5C - 12.4C 11.5C - 12.4C = 2,755
[2,755 (2.46% / 2.95%)] [38,308 / 57,874 (41.00%)]
12.5C - 13.4C 12.5C - 13.4C = 2,809
[2,809 (2.51% / 3.01%)] [41,117 / 55,119 (44.01%)]
13.5C - 14.4C 13.5C - 14.4C = 2,934
[2,934 (2.63% / 3.14%)] [44,051 / 52,310 (47.15%)]
14.5C - 15.4C 14.5C - 15.4C = 3,008
[3,008 (2.69% / 3.22%)] [47,059 / 49,376 (50.37%)]
15.5C - 16.4C 15.5C - 16.4C = 3,211
[3,211 (2.87% / 3.44%)] [50,270 / 46,368 (53.81%)]
16.5C - 17.4C 16.5C - 17.4C = 3,460
[3,460 (3.10% / 3.70%)] [53,730 / 43,157 (57.51%)]
17.5C - 18.4C 17.5C - 18.4C = 3,684
[3,684 (3.30% / 3.94%)] [57,414 / 39,697 (61.45%)]
18.5C - 19.4C 18.5C - 19.4C = 3,880
[3,880 (3.47% / 4.15%)] [61,294 / 36,013 (65.61%)]
19.5C - 20.4C 19.5C - 20.4C = 3,928
[3,928 (3.51% / 4.20%)] [65,222 / 32,133 (69.81%)]
20.5C - 21.4C 20.5C - 21.4C = 3,917
[3,917 (3.50% / 4.19%)] [69,139 / 28,205 (74.00%)]
21.5C - 22.4C 21.5C - 22.4C = 3,828
[3,828 (3.42% / 4.10%)] [72,967 / 24,288 (78.10%)]
22.5C - 23.4C 22.5C - 23.4C = 3,810
[3,810 (3.41% / 4.08%)] [76,777 / 20,460 (82.18%)]
23.5C - 24.4C 23.5C - 24.4C = 3,733
[3,733 (3.34% / 4.00%)] [80,510 / 16,650 (86.17%)]
24.5C - 25.4C 24.5C - 25.4C = 3,245
[3,245 (2.90% / 3.47%)] [83,755 / 12,917 (89.65%)]
25.5C - 26.4C 25.5C - 26.4C = 2,512
[2,512 (2.25% / 2.69%)] [86,267 / 9,672 (92.34%)]
26.5C - 27.4C 26.5C - 27.4C = 1,849
[1,849 (1.65% / 1.98%)] [88,116 / 7,160 (94.32%)]
27.5C - 28.4C 27.5C - 28.4C = 1,382
[1,382 (1.24% / 1.48%)] [89,498 / 5,311 (95.79%)]
28.5C - 29.4C 28.5C - 29.4C = 1,170
[1,170 (1.05% / 1.25%)] [90,668 / 3,929 (97.05%)]
29.5C - 30.4C 29.5C - 30.4C = 940
[940 (0.84% / 1.01%)] [91,608 / 2,759 (98.05%)]
30.5C - 31.4C 30.5C - 31.4C = 781
[781 (0.70% / 0.84%)] [92,389 / 1,819 (98.89%)]
31.5C - 32.4C 31.5C - 32.4C = 533
[533 (0.48% / 0.57%)] [92,922 / 1,038 (99.46%)]
32.5C - 33.4C 32.5C - 33.4C = 312
[312 (0.28% / 0.33%)] [93,234 / 505 (99.79%)]
33.5C - 34.4C 33.5C - 34.4C = 150
[150 (0.13% / 0.16%)] [93,384 / 193 (99.95%)]
34.5C - 35.4C 34.5C - 35.4C = 38
[38 (0.03% / 0.04%)] [93,422 / 43 (99.99%)]
35.5C - 36.4C 35.5C - 36.4C = 4
[4 (0.00% / 0.00%)] [93,426 / 5 (100.00%)]
36.5C - 37.4C 36.5C - 37.4C = 1
[1 (0.00% / 0.00%)] [93,427 / 1 (100.00%)]

Missing observations (18,341 / 16.41%)