Marlborough, Wiltshire
| Year | No.Years | Actual Mean Temp | Cum. Mean Temp | Av.Mean Temp |
| 1984 | 1 | 17.24 | 17.24 | 17.24 |
| 1985 | 2 | 14.50 | 31.74 | 15.87 |
| 1986 | 3 | 12.50 | 44.24 | 14.75 |
| 1987 | 4 | 16.39 | 60.63 | 15.16 |
| 1988 | 5 | 14.60 | 75.23 | 15.05 |
| 1989 | 6 | 15.64 | 90.87 | 15.15 |
| 1990 | 7 | 18.06 | 108.93 | 15.56 |
| 1991 | 8 | 17.27 | 126.20 | 15.78 |
| 1992 | 9 | 15.20 | 141.40 | 15.71 |
| 1993 | 10 | 14.25 | 155.65 | 15.57 |
| 1994 | 11 | 16.44 | 172.09 | 15.64 |
| 1995 | 12 | 19.02 | 191.11 | 15.93 |
| 1996 | 13 | 16.19 | 207.30 | 15.95 |
| 1997 | 14 | 19.12 | 226.42 | 16.17 |
| 1998 | 15 | 16.30 | 242.72 | 16.18 |
| 1999 | 16 | 16.49 | 259.21 | 16.20 |
| 2000 | 17 | 17.00 | 276.21 | 16.25 |
| 2001 | 18 | 17.13 | 293.34 | 16.30 |
| 2002 | 19 | 17.15 | 310.49 | 16.34 |
| 2003 | 20 | 18.73 | 329.22 | 16.46 |
| 2004 | 21 | 17.84 | 347.06 | 16.53 |
| 2005 | 22 | 16.36 | 363.42 | 16.52 |
| 2006 | 23 | 16.96 | 380.38 | 16.54 |
| 2007 | 24 | 15.77 | 396.15 | 16.51 |
| 2008 | 25 | 16.35 | 412.50 | 16.50 |
| 2009 | 26 | 16.93 | 429.43 | 16.52 |
| 2010 | 27 | 15.83 | 445.26 | 16.49 |
| 2011 | 28 | 15.97 | 461.23 | 16.47 |