September Mean Temperatures

wdt_ID	Year	No.Years	Actual Mean Temp	Cum.Mean Temp	Av.Mean Temp
1	1984	1	13.5	13.5	13.5
2	1985	2	14.0	27.4	13.7
3	1986	3	10.6	38.0	12.7
4	1987	4	13.6	51.6	12.9
5	1988	5	13.0	64.6	12.9
6	1989	6	14.6	79.1	13.2
7	1990	7	12.6	91.8	13.1
8	1991	8	14.2	106.0	13.3
9	1992	9	13.2	119.2	13.3
10	1993	10	11.8	131.0	13.1
	Year	No.Years	Actual Mean Temp	Cum.Mean Temp	Av.Mean Temp