| Target Period | OBS (°C) | 0 lead | 1 lead | 2 lead | 3 lead | 4 lead | 5 lead | 6 lead | 7 lead |
| JFM 1993 | 0.3 | 0.1 | |||||||
| FMA 1993 | 0.6 | 0.1 | |||||||
| MAM 1993 | 0.9 | 0.2 | |||||||
| AMJ 1993 | 1.0 | 0.4 | 0.0 | ||||||
| MJJ 1993 | 0.9 | 0.7 | 0.2 | ||||||
| JJA 1993 | 0.5 | 0.9 | 0.3 | ||||||
| JAS 1993 | 0.4 | 1.2 | 0.7 | -0.2 | |||||
| ASO 1993 | 0.3 | 0.4 | 1.0 | -0.5 | |||||
| SON 1993 | 0.4 | 0.6 | 1.4 | 0.4 | |||||
| OND 1993 | 0.4 | 0.3 | 1.4 | 1.1 | -0.4 | ||||
| NDJ 1993 | 0.2 | 0.4 | 0.8 | 1.4 | 0.4 | ||||
| DJF 1993 | 0.1 | 0.3 | 0.3 | 1.5 | 0.4 | ||||
| JFM 1994 | 0.0 | 0.2 | 0.5 | 1.2 | 0.8 | -0.2 | |||
| FMA 1994 | 0.1 | -0.2 | 0.2 | 0.5 | 0.8 | 0.3 | |||
| MAM 1994 | 0.2 | -0.2 | 0.0 | 0.5 | 0.7 | -0.3 | |||
| AMJ 1994 | 0.4 | 0.0 | -0.1 | -0.1 | 0.2 | 0.0 | 0.1 | ||
| MJJ 1994 | 0.4 | 0.0 | -0.2 | 0.1 | 0.1 | 0.1 | 0.3 | ||
| JJA 1994 | 0.5 | 0.4 | -0.2 | 0.0 | 0.1 | 0.1 | 0.5 | ||
| JAS 1994 | 0.5 | 0.8 | 0.1 | -0.2 | -0.5 | -0.5 | 0.3 | 0.6 | |
| ASO 1994 | 0.7 | 0.2 | 0.0 | -0.5 | -0.8 | -0.1 | 0.1 | 0.1 | |
| SON 1994 | 0.9 | 0.4 | 0.4 | -0.4 | -0.7 | -0.4 | -0.3 | 0.8 | |
| OND 1994 | 1.2 | 0.6 | 0.7 | 0.2 | -0.3 | -0.8 | -0.8 | 0.5 | 0.1 |
| NDJ 1994 | 1.3 | 0.8 | 0.8 | -0.3 | -0.4 | -0.6 | -0.4 | -0.6 | 0.3 |
| DJF 1994 | 1.1 | 1.1 | 0.3 | 0.5 | -0.4 | -0.4 | -0.3 | -0.3 | 0.8 |
| JFM 1995 | 0.8 | 0.9 | 0.6 | 0.4 | 0.2 | -0.2 | -0.6 | -0.4 | 0.2 |
| FMA 1995 | 0.5 | 0.4 | 0.5 | 0.5 | -0.1 | 0.0 | 0.0 | -0.2 | -0.3 |
| MAM 1995 | 0.3 | 0.6 | 0.4 | 0.5 | 0.1 | -0.3 | -0.2 | 0.0 | -0.1 |
| AMJ 1995 | 0.1 | 0.2 | 0.3 | 0.0 | -0.2 | -0.2 | 0.0 | 0.1 | 0.1 |
| MJJ 1995 | 0.0 | 0.2 | 0.7 | 0.2 | 0.0 | 0.3 | 0.0 | 0.1 | 0.1 |
| JJA 1995 | -0.1 | -0.1 | 0.4 | 0.1 | 0.1 | 0.1 | 0.4 | 0.3 | 0.4 |
| JAS 1995 | -0.3 | 0.0 | -0.2 | 0.1 | -0.3 | -0.4 | 0.4 | 0.2 | 0.7 |
| ASO 1995 | -0.6 | -0.2 | 0.0 | 0.2 | -0.8 | 0.1 | 0.5 | 0.2 | 0.1 |
| SON 1995 | -0.8 | -0.4 | -0.1 | 0.5 | -0.5 | -0.4 | 0.2 | 0.6 | 0.4 |
| OND 1995 | -0.9 | -0.8 | 0.1 | 0.0 | 0.0 | -0.7 | -0.8 | 0.5 | 0.1 |
| NDJ 1995 | -0.8 | -1.0 | 0.0 | 0.1 | 0.8 | -0.4 | -0.5 | 0.0 | 0.4 |
| DJF 1995 | -0.8 | -0.8 | -0.1 | -0.1 | 0.5 | 0.3 | 0.0 | 0.2 | 0.7 |
| JFM 1996 | -0.7 | -0.6 | -0.5 | -0.1 | 0.1 | 0.1 | -0.5 | 0.0 | 0.6 |
| FMA 1996 | -0.5 | -0.4 | -0.5 | 0.0 | 0.1 | 0.5 | 0.2 | -0.3 | 0.3 |
| MAM 1996 | -0.3 | -0.5 | -0.2 | 0.0 | 0.0 | 0.3 | -0.1 | 0.2 | 0.2 |
| AMJ 1996 | -0.2 | -0.2 | -0.2 | -0.2 | -0.1 | 0.4 | 0.4 | 0.2 | 0.1 |
| MJJ 1996 | -0.1 | -0.2 | 0.0 | 0.0 | 0.1 | 0.4 | 0.3 | 0.1 | 0.1 |
| JJA 1996 | 0.0 | -0.2 | 0.1 | -0.2 | 0.1 | 0.1 | 0.2 | 0.2 | -0.2 |
| JAS 1996 | -0.1 | -0.4 | 0.2 | 0.0 | -0.4 | -0.2 | -0.2 | 0.1 | 0.6 |
| ASO 1996 | -0.2 | -0.2 | -0.2 | 0.0 | -0.6 | -0.1 | 0.0 | 0.3 | 0.1 |
| SON 1996 | -0.3 | -0.2 | 0.2 | 0.1 | -0.5 | 0.1 | 0.3 | 0.3 | 0.3 |
| OND 1996 | -0.3 | -0.2 | -0.3 | 0.6 | 0.0 | -0.5 | -0.3 | -0.3 | 0.1 |
| NDJ 1996 | -0.4 | -0.4 | 0.0 | -0.1 | 0.3 | -0.2 | -0.1 | 0.0 | 0.1 |
| DJF 1996 | -0.4 | -0.2 | -0.1 | -0.2 | 0.2 | 0.0 | 0.2 | 0.3 | 0.3 |
| JFM 1997 | -0.3 | -0.3 | -0.1 | -0.2 | 0.5 | 0.1 | -0.4 | -0.1 | -0.3 |
| FMA 1997 | 0.1 | -0.2 | -0.2 | 0.0 | 0.0 | 0.3 | 0.2 | 0.1 | 0.0 |
| MAM 1997 | 0.5 | 0.0 | 0.1 | 0.2 | 0.0 | -0.2 | 0.1 | 0.2 | 0.2 |
| AMJ 1997 | 1.0 | 0.4 | 0.0 | 0.3 | 0.2 | 0.0 | 0.0 | 0.2 | 0.1 |
| MJJ 1997 | 1.5 | 0.9 | 0.2 | 0.1 | 0.4 | 0.4 | 0.2 | 0.1 | 0.1 |
| JJA 1997 | 1.9 | 1.5 | 0.5 | 0.2 | 0.1 | 0.1 | 0.5 | 0.6 | 0.3 |
| JAS 1997 | 2.2 | 1.7 | 0.9 | 0.3 | 0.4 | 0.4 | 0.2 | 0.6 | -0.1 |
| ASO 1997 | 2.4 | 2.3 | 1.2 | 0.4 | 0.3 | 0.5 | 0.7 | 0.0 | 0.1 |
| SON 1997 | 2.6 | 2.1 | 2.0 | 0.7 | 0.5 | 0.4 | 0.6 | 0.7 | 0.8 |
| OND 1997 | 2.6 | 2.2 | 2.8 | 2.4 | 0.8 | 0.6 | 0.6 | 0.4 | 0.1 |
| NDJ 1997 | 2.8 | 2.6 | 3.1 | 1.5 | 0.9 | 0.4 | 0.7 | 0.4 | 0.2 |
| DJF 1997 | 2.5 | 2.2 | 2.8 | 2.5 | 0.8 | 0.5 | 0.3 | 0.7 | 0.8 |
| JFM 1998 | 2.1 | 1.8 | 1.5 | 2.0 | 1.3 | 0.5 | 0.5 | 0.6 | 0.3 |
| FMA 1998 | 1.6 | 1.3 | 1.4 | 1.6 | 0.8 | 0.4 | 0.4 | 0.3 | 0.2 |
| MAM 1998 | 1.1 | 1.2 | 0.8 | 0.8 | 0.9 | 0.3 | 0.4 | 0.2 | 0.4 |
| AMJ 1998 | 0.4 | 0.8 | 0.2 | 0.0 | 0.6 | 0.2 | 0.2 | 0.2 | 0.1 |
| MJJ 1998 | -0.3 | 0.5 | 0.3 | 0.2 | 0.4 | -0.1 | 0.2 | 0.1 | 0.1 |
| JJA 1998 | -1.0 | -0.2 | 0.0 | -0.5 | 0.1 | 0.1 | 0.4 | 0.2 | 0.2 |
| JAS 1998 | -1.1 | -0.6 | -0.1 | -0.9 | -0.6 | -0.5 | 0.3 | 0.1 | 0.2 |
| ASO 1998 | -1.1 | -1.2 | -0.3 | -0.5 | -0.2 | -0.2 | 0.0 | 0.1 | 0.0 |
| SON 1998 | -1.1 | -1.8 | -1.2 | -0.1 | -0.8 | -0.5 | -0.4 | 0.5 | 0.2 |
| OND 1998 | -1.4 | -1.7 | -1.7 | -0.8 | -1.7 | -1.0 | -0.9 | 0.4 | 0.1 |
| NDJ 1998 | -1.5 | -1.1 | -2.0 | -0.8 | -1.3 | -0.6 | -0.2 | -0.1 | 0.6 |
| DJF 1998 | -1.5 | -1.1 | -1.6 | -0.9 | -0.1 | -1.5 | -0.8 | -0.3 | 0.6 |
| JFM 1999 | -1.2 | -1.0 | -1.1 | -1.1 | -0.5 | -1.4 | -0.7 | -0.7 | -0.1 |
| FMA 1999 | -0.9 | -0.7 | -0.5 | -1.0 | -0.4 | -0.9 | -0.4 | -0.4 | -0.2 |
| MAM 1999 | -0.7 | -0.9 | -0.3 | -0.6 | -0.4 | -0.7 | -0.8 | -0.4 | -0.2 |
| AMJ 1999 | -0.8 | -0.5 | -0.5 | -0.6 | -0.5 | -0.8 | -0.6 | -0.4 | 0.2 |
| MJJ 1999 | -0.7 | -0.5 | -0.6 | 0.0 | -0.2 | -1.0 | -0.5 | 0.2 | 0.2 |
| JJA 1999 | -0.9 | -0.4 | -0.5 | 0.0 | 0.1 | 0.1 | -0.9 | -0.7 | -0.1 |
| JAS 1999 | -0.9 | -0.2 | -0.1 | 0.0 | -0.4 | 0.0 | -0.7 | -0.5 | -0.6 |
| ASO 1999 | -0.9 | -0.7 | -0.6 | -0.3 | 0.3 | 0.2 | -0.4 | 0.3 | 0.1 |
| SON 1999 | -1.0 | -0.8 | -0.5 | -0.9 | 0.1 | 0.5 | -0.4 | -1.6 | -1.1 |
| OND 1999 | -1.3 | -0.7 | -0.7 | -0.6 | 0.0 | -0.3 | 0.0 | -1.5 | 0.2 |
| NDJ 1999 | -1.6 | -1.0 | -0.7 | -0.9 | -1.0 | 0.6 | 0.0 | -0.5 | -1.2 |
| DJF 1999 | -1.6 | -0.9 | -0.9 | -0.6 | -0.9 | 0.6 | 0.5 | -0.5 | -1.7 |
| JFM 2000 | -1.4 | -1.0 | -0.4 | -0.5 | -0.4 | 0.1 | -0.2 | 0.2 | -1.0 |
| FMA 2000 | -1.0 | -1.0 | -0.4 | -0.3 | -0.4 | -0.3 | -0.4 | 0.4 | 0.1 |
| MAM 2000 | -0.7 | -0.7 | -0.3 | -0.1 | -0.2 | -0.1 | 0.3 | 0.2 | 0.0 |
| AMJ 2000 | -0.5 | -0.4 | -0.2 | -0.1 | -0.2 | 0.3 | 0.3 | 0.3 | 0.2 |
| MJJ 2000 | -0.4 | -0.4 | -0.3 | 0.0 | -0.1 | 0.4 | 0.2 | 0.2 | 0.2 |
| JJA 2000 | -0.3 | -0.4 | -0.1 | 0.5 | 0.1 | 0.1 | 0.2 | 0.3 | 0.2 |
| JAS 2000 | -0.3 | 0.2 | 0.2 | 0.4 | 0.5 | 0.4 | 0.1 | 0.2 | 0.3 |
| ASO 2000 | -0.4 | -0.3 | 0.1 | -0.3 | 0.4 | 0.5 | 0.0 | 0.1 | |
| SON 2000 | -0.1 | -0.4 | -0.4 | 0.2 | 0.2 | 0.5 | 0.2 | 0.3 | |
| OND 2000 | -0.1 | 0.2 | 0.7 | 0.7 | 0.6 | 0.3 | 0.1 | ||
| NDJ 2000 | -0.5 | -0.1 | -0.1 | 0.1 | 0.4 | 0.9 | 0.1 | ||
| DJF 2000 | -0.6 | 0.0 | -0.3 | 0.7 | 0.8 | 0.7 | 0.4 | ||
| JFM 2001 | 0.0 | 0.2 | 0.7 | 0.6 | 0.8 | 0.3 | |||
| FMA 2001 | -0.2 | 0.0 | -0.1 | 0.6 | 0.2 | 0.5 | |||
| MAM 2001 | 0.1 | 0.1 | 0.3 | 0.4 | 0.3 | 0.3 | |||
| AMJ 2001 | -0.1 | 0.0 | 0.2 | 0.3 | 0.1 | ||||
| MJJ 2001 | -0.2 | 0.2 | 0.1 | 0.1 | 0.1 | ||||
| JJA 2001 | 0.1 | 0.1 | 0.6 | 0.4 | 0.4 | ||||
| JAS 2001 | 0.2 | 0.3 | 0.1 | 0.3 | |||||
| ASO 2001 | 0.2 | 0.6 | 0.3 | 0.0 | |||||
| SON 2001 | 0.1 | 0.8 | 0.8 | 0.4 | |||||
| OND 2001 | 0.4 | 0.6 | 0.0 | ||||||
| NDJ 2001 | 0.2 | 0.6 | 0.8 | ||||||
| DJF 2001 | 0.5 | 1.1 | 1.0 | ||||||
| JFM 2002 | 0.6 | 0.4 | |||||||
| FMA 2002 | 0.0 | 0.2 | |||||||
| MAM 2002 | 0.2 | 0.5 | |||||||
| AMJ 2002 | 0.1 | ||||||||
| MJJ 2002 | 0.1 | ||||||||
| JJA 2002 | 0.0 |