Station 36

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.

Figure 'b': Monthly climatic average with the first standard deviation. The standard deviation has been derived from the difference in the monthly average from the long-term mean (1971 - 2000).

Figure 'c': Yearly anomaly from the base period. Where the average base period temperature (1971 - 2000) has been subtracted from the average annual temperature. The standard deviation of the annually averaged temperature of the entire record is also shown. A trend line derived from a linear least squares analysis has been added to indicate the extent to which annual changes are linear.

Monthly Mean Sea Temperature for MOELFRE at 53° 21' N, 4° 14' W

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1966	5.3	4.9	6.5	6.5	9.2	12.1	14.4	15.1	15.2	13.1	9.5	7.7
1967	6.2	6.3	7.2	7.6	9.0	13.3	14.4	15.0	14.7	12.8	10.0	8.1
1968	6.0	5.4	6.1	7.9	9.7	12.3	14.1	16.0	15.6	14.6	9.9	6.5
1969	6.0	4.6	4.0	6.0	9.1	12.2	14.1	15.6	15.6	14.0	10.3	6.2
1970	5.5	5.5	5.6	6.7	9.3	13.1	14.4	14.7	15.3	13.1	10.4	7.6
1971	5.9	6.3	6.3	7.5	9.6	12.7	15.2	16.1	15.5	13.8	9.9	8.1
1972	6.4	5.6	5.9	8.6	10.1	12.1	13.8	14.7	14.3	13.1	10.2	8.3
1973	6.5	6.9	7.8	9.3	10.2	12.9	15.8	15.7	15.0	12.9	11.1	7.6
1974	7.1	6.9	6.9	8.4	10.7	13.1	14.4	15.0	15.0	11.4	9.2	8.3
1975	7.2	7.3	6.8	7.4	12.3	14.2	15.8	16.0	14.9	12.8	10.0	8.0
1976	7.9	5.4	6.8	10.1	11.6	14.3	17.8	19.7	16.8	12.1	6.5	3.8
1977	5.0	5.4	6.4	8.1	11.6	14.2	15.3	16.3	14.6	13.1	10.0	7.8
1978	6.2	5.1	6.3	7.7	9.6	13.0	14.8	15.4	14.7	13.4	11.8	7.7
1979	4.9	4.2	5.0	5.7	7.2	8.4	10.6	11.0	10.9	9.5	6.6	4.2
1980					11.0	13.8	14.9	14.6	12.9	10.0	9.5	8.2
1981	7.0	6.5	7.8	9.2	10.2	13.3	14.8	16.1	15.1	11.4	9.5	6.5
1982	4.8	5.0	6.9	8.2	10.4	14.6	16.1	16.2	14.2	11.8	9.2	7.3
1983	6.6	4.3	6.0	7.2	9.2	11.9	16.3	16.7	14.3	12.0	7.9	7.4
1984	6.0	5.3	5.4	7.5	11.3	14.1
1985	4.2	3.3	5.3	8.4	9.1	10.2	12.4	13.1	14.6	13.8	9.3	7.9
1986	6.0	3.3	4.4	6.2	9.2	12.6	14.1		14.0	12.8	10.2	8.5
1987	5.3	5.6	5.8	7.8	10.2	11.8	14.9	15.9	15.5	12.6	10.4	7.6
1988	7.5	6.4	6.3	8.4	10.7	13.7	14.6	15.7	14.0	12.1	9.7	8.7
1989	7.8	7.4	7.3	8.0	11.4	14.1	16.1	16.8	15.8	13.7	10.8	7.3
1990	7.7	7.5	7.4	8.1	11.6	12.4	15.2	16.7	15.3	13.3	10.4	7.8
1991	6.2	4.2	6.5	8.2	10.3	12.5	14.4	16.1	16.2	12.8	9.7	8.4
1992	7.9	7.1	7.6	8.0	10.6	13.5	16.0	16.3	14.2	11.7	10.1	8.0
1993	6.7	6.7	5.9	8.2	10.9	12.5	14.5	15.4	15.2	11.7	9.3	8.2
1994	7.1	5.8	6.2	7.4	10.7	13.5	14.5	15.7	14.5	12.6	11.6	9.6
1995	7.2	7.4	7.0	8.5	10.1	13.3	15.9	17.6	16.1	14.5	11.5	7.0
1996	4.8	4.4	5.4	7.4	9.4	12.3	14.9	16.2	15.1	13.7	10.4	7.2
1997	4.8	6.0	7.3	9.1	10.7	13.0	15.1	17.4	15.8	13.2	11.0	8.6
1998	8.1	8.0	8.0	8.9	11.5	13.2	15.0	15.6	14.4	13.6	10.6	8.9
1999	7.9	7.2	7.5	9.0	11.6	14.0	16.7	17.5	17.2	14.5	12.1	8.9
2000	7.4	7.5	7.9	8.1	11.0	13.5
2001			6.4	8.5	12.0	14.7	16.9	17.2
2002	7.0	8.1	8.5	9.7	10.7
2003		6.3	7.3	9.3	10.8		17.1	17.3	16.1		11.0	8.8
2004	6.9	7.8		9.8	11.8	14.5	15.3	16.1
2005	7.5	7.7	7.2	8.7	10.3	13.9	14.7	17.4	16.8		13.0	8.4
2006		7.2	7.0	8.1	11.1	13.4	15.2	16.2	16.5	14.9
2007			7.6	8.3	12.9		15.0	14.9			13.9	7.4
2008	7.3	7.8	7.9	8.6	11.5	14.7
whole data set
mean	6.5	6.1	6.6	8.1	10.5	13.1	15.0	15.9	15.1	12.8	10.2	7.7
count	38	40	41	42	43	40	39	38	36	34	36	36
sd	1.06	1.32	1.01	0.98	1.09	1.21	1.25	1.39	1.16	1.21	1.43	1.16
1971 - 2000
mean	6.5	5.9	6.6	8.1	10.5	13.0	15.0	15.9	14.9	12.6	9.9	7.7
count	29	29	29	29	30	30	28	27	28	28	28	28
sd	1.14	1.32	0.94	0.90	1.03	1.27	1.33	1.54	1.20	1.19	1.32	1.23

Source: Cefas