Station 31: Swansea
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Figure ‘a’: Monthly mean surface temperature for the entire duration of the record at the station which are derived from simple averaging of all the monthly data.
Monthly Mean Sea Temperature for SWANSEA at 51° 36' N, 3° 56' W
| Year |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
mean |
| 1976 |
|
|
6.5 |
9.0 |
12.3 |
16.1 |
19.3 |
19.3 |
16.4 |
13.8 |
10.6 |
7.3 |
|
| 1977 |
5.5 |
6.4 |
7.6 |
8.6 |
12.0 |
14.4 |
17.0 |
17.8 |
16.0 |
13.9 |
|
|
|
| 1978 |
5.9 |
4.9 |
5.8 |
8.2 |
11.8 |
14.9 |
15.5 |
17.1 |
16.3 |
14.1 |
12.1 |
8.3 |
11.2 |
| 1979 |
4.9 |
3.9 |
5.6 |
7.7 |
10.8 |
14.7 |
17.2 |
16.9 |
16.1 |
15.1 |
11.1 |
8.6 |
11.1 |
| 1980 |
5.4 |
7.0 |
6.8 |
9.4 |
12.1 |
14.4 |
15.5 |
|
16.1 |
13.4 |
10.3 |
8.1 |
|
| 1981 |
7.0 |
6.2 |
7.3 |
9.7 |
11.5 |
14.7 |
17.0 |
18.1 |
17.1 |
12.4 |
9.8 |
5.8 |
11.4 |
| 1982 |
3.4 |
4.9 |
6.3 |
8.9 |
11.7 |
15.9 |
17.4 |
17.5 |
16.2 |
12.9 |
10.2 |
6.6 |
11.0 |
| 1983 |
6.4 |
3.8 |
5.1 |
7.4 |
10.7 |
13.9 |
18.5 |
19.7 |
16.6 |
14.0 |
11.4 |
8.8 |
11.4 |
| 1984 |
6.9 |
5.8 |
6.4 |
8.8 |
12.1 |
15.5 |
18.8 |
19.8 |
17.5 |
14.1 |
11.6 |
9.1 |
12.2 |
| 1985 |
5.6 |
4.4 |
5.8 |
8.3 |
11.7 |
14.5 |
17.2 |
16.6 |
16.4 |
14.7 |
9.7 |
8.7 |
11.1 |
| 1986 |
6.8 |
3.4 |
4.7 |
7.0 |
10.9 |
14.3 |
17.2 |
16.7 |
15.2 |
13.9 |
11.1 |
9.0 |
10.9 |
| 1987 |
5.5 |
5.3 |
5.8 |
9.0 |
12.2 |
14.1 |
17.0 |
17.7 |
16.8 |
13.1 |
10.1 |
6.9 |
11.1 |
| 1988 |
7.4 |
6.4 |
7.2 |
9.8 |
12.3 |
15.0 |
16.1 |
16.5 |
15.8 |
|
|
|
|
| 1989 |
|
8.0 |
7.9 |
9.1 |
13.1 |
15.9 |
18.8 |
19.1 |
17.2 |
14.5 |
11.0 |
7.4 |
|
| 1990 |
7.3 |
7.4 |
8.3 |
9.6 |
14.2 |
15.4 |
17.8 |
19.4 |
17.2 |
14.1 |
10.3 |
7.3 |
12.4 |
| 1991 |
5.7 |
3.4 |
6.6 |
8.9 |
11.6 |
14.0 |
16.8 |
18.3 |
18.2 |
13.1 |
9.6 |
7.6 |
11.2 |
| 1992 |
6.7 |
6.2 |
7.7 |
9.3 |
13.3 |
17.1 |
18.5 |
18.0 |
16.0 |
12.7 |
10.1 |
8.2 |
12.0 |
| 1993 |
8.4 |
8.1 |
8.5 |
10.8 |
13.7 |
16.7 |
18.3 |
18.5 |
17.2 |
13.6 |
9.8 |
8.2 |
12.7 |
| 1994 |
7.7 |
7.0 |
8.7 |
9.8 |
12.1 |
14.7 |
18.3 |
18.4 |
15.9 |
13.5 |
12.0 |
9.7 |
12.3 |
| 1995 |
7.7 |
7.7 |
7.3 |
9.7 |
12.5 |
15.3 |
19.0 |
21.0 |
17.6 |
15.3 |
11.9 |
7.5 |
12.7 |
| 1996 |
5.7 |
4.4 |
5.3 |
7.9 |
10.8 |
14.9 |
17.6 |
18.6 |
16.7 |
14.1 |
10.5 |
6.9 |
11.1 |
| 1997 |
3.8 |
5.4 |
7.8 |
10.3 |
12.4 |
15.4 |
17.9 |
19.6 |
17.3 |
14.6 |
10.9 |
8.7 |
12.0 |
| 1998 |
7.3 |
7.1 |
8.3 |
9.3 |
13.3 |
15.3 |
16.7 |
18.0 |
17.0 |
14.1 |
10.2 |
8.1 |
12.1 |
| 1999 |
6.9 |
6.8 |
7.7 |
9.9 |
13.3 |
15.4 |
18.5 |
18.6 |
18.0 |
14.2 |
11.1 |
8.3 |
12.4 |
| 2000 |
6.9 |
7.1 |
8.3 |
9.0 |
|
|
|
|
|
|
|
|
|
| mean |
6.3 |
5.9 |
6.9 |
9.0 |
12.2 |
15.1 |
17.6 |
18.3 |
16.7 |
13.9 |
10.7 |
8.0 |
|
| count |
23 |
24 |
25 |
25 |
24 |
24 |
24 |
23 |
24 |
23 |
22 |
22 |
|
| sd |
1.24 |
1.47 |
1.16 |
0.90 |
0.94 |
0.82 |
1.05 |
1.16 |
0.74 |
0.73 |
0.77 |
0.93 |
|
Source: Cefas
