|
Monthly and Annual Mean Water Levels in Metres From 1950
|
Annual Extremes |
. |
|
Niveaux moyens mensuels et annuels en mètres depuis 1950
|
Extrêmes annuels |
| Year |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual Means |
Maximum |
Minimum |
Year |
| Année |
Jan |
Fév |
Mars |
Avr |
Mai |
Juin |
Juil |
Août |
Sept |
Oct |
Nov |
Déc |
Moyens annuels |
Année |
| 1950 |
177.39 |
177.33 |
176.91 |
177.41 |
179.37 |
179.32 |
179.29 |
179.20 |
178.65 |
177.95 |
177.70 |
177.87 |
178.20 |
179.57 |
176.69 |
1950 |
| 1951 |
177.48 |
177.03 |
176.55 |
178.04 |
178.85 |
179.37 |
179.51 |
179.38 |
178.54 |
179.02 |
179.12 |
179.20 |
178.52 |
179.60 |
176.38 |
1951 |
| 1952 |
178.45 |
177.96 |
177.18 |
177.27 |
179.07 |
179.45 |
179.23 |
179.30 |
179.45 |
178.94 |
178.46 |
179.03 |
178.65 |
179.55 |
176.35 |
1952 |
| 1953 |
178.62 |
178.06 |
177.68 |
178.83 |
179.20 |
179.46 |
179.35 |
178.72 |
178.35 |
178.07 |
177.53 |
177.39 |
178.44 |
179.68 |
177.22 |
1953 |
| 1954 |
176.97 |
176.74 |
176.69 |
177.03 |
179.08 |
179.42 |
179.27 |
179.06 |
178.65 |
179.33 |
179.41 |
179.13 |
178.41 |
179.74 |
176.20 |
1954 |
| 1955 |
177.98 |
176.98 |
176.62 |
177.63 |
178.52 |
178.65 |
178.49 |
178.60 |
178.67 |
178.90 |
179.28 |
178.10 |
178.21 |
179.49 |
176.41 |
1955 |
| 1956 |
176.85 |
176.52 |
176.51 |
176.80 |
178.68 |
179.41 |
179.37 |
179.25 |
179.12 |
179.38 |
178.61 |
178.05 |
178.22 |
179.67 |
176.37 |
1956 |
| 1957 |
177.49 |
176.92 |
176.75 |
177.09 |
178.92 |
179.14 |
179.63 |
178.85 |
178.78 |
178.59 |
179.16 |
179.28 |
178.39 |
180.06 |
176.38 |
1957 |
| 1958 |
179.34 |
178.34 |
177.09 |
176.83 |
177.73 |
178.77 |
178.73 |
178.47 |
178.55 |
178.77 |
179.28 |
177.83 |
178.31 |
179.51 |
176.54 |
1958 |
| 1959 |
177.07 |
176.90 |
176.74 |
177.05 |
179.19 |
179.16 |
178.57 |
178.54 |
179.00 |
179.29 |
179.55 |
179.10 |
178.35 |
179.63 |
176.33 |
1959 |
| 1960 |
178.62 |
177.58 |
176.87 |
177.45 |
180.14 |
179.61 |
179.62 |
179.32 |
178.72 |
178.73 |
178.40 |
178.27 |
178.62 |
181.04 |
176.72 |
1960 |
| 1961 |
177.70 |
176.79 |
176.59 |
177.00 |
179.18 |
179.34 |
179.11 |
178.92 |
179.06 |
178.98 |
178.75 |
178.91 |
178.37 |
179.48 |
176.41 |
1961 |
| 1962 |
178.13 |
177.29 |
176.62 |
177.02 |
179.15 |
178.80 |
178.52 |
178.65 |
178.60 |
178.41 |
178.32 |
178.19 |
178.15 |
179.40 |
176.51 |
1962 |
| 1963 |
177.89 |
177.07 |
176.22 |
177.33 |
178.86 |
179.28 |
178.87 |
178.88 |
178.88 |
178.70 |
179.03 |
179.19 |
178.36 |
179.47 |
176.08 |
1963 |
| 1964 |
178.32 |
177.36 |
176.63 |
177.38 |
179.36 |
179.43 |
179.04 |
178.74 |
178.58 |
178.76 |
178.83 |
178.62 |
178.42 |
179.62 |
176.29 |
1964 |
| 1965 |
178.24 |
177.33 |
176.44 |
176.21 |
178.90 |
179.09 |
178.96 |
179.02 |
179.03 |
179.37 |
179.32 |
179.13 |
178.43 |
179.48 |
175.89 |
1965 |
| 1966 |
178.08 |
177.29 |
176.81 |
177.39 |
178.98 |
179.38 |
179.24 |
179.19 |
178.75 |
179.08 |
179.30 |
179.72 |
178.61 |
180.25 |
176.62 |
1966 |
| 1967 |
178.85 |
177.62 |
177.03 |
177.50 |
179.14 |
179.49 |
179.13 |
179.19 |
178.93 |
178.65 |
179.36 |
179.20 |
178.68 |
179.78 |
176.75 |
1967 |
| 1968 |
178.69 |
177.29 |
176.48 |
177.87 |
178.79 |
179.06 |
178.99 |
179.24 |
179.06 |
178.81 |
178.58 |
178.46 |
178.45 |
179.39 |
176.12 |
1968 |
| 1969 |
178.06 |
177.13 |
176.24 |
177.04 |
179.22 |
179.35 |
179.16 |
179.17 |
178.90 |
178.84 |
179.44 |
179.11 |
178.48 |
179.65 |
175.85 |
1969 |
| 1970 |
178.40 |
177.30 |
176.35 |
176.11 |
178.94 |
179.46 |
179.50 |
179.18 |
178.77 |
179.00 |
178.79 |
178.63 |
178.38 |
179.61 |
175.65 |
1970 |
| 1971 |
177.85 |
177.03 |
176.54 |
176.60 |
178.38 |
179.09 |
178.88 |
178.79 |
178.40 |
178.44 |
178.57 |
178.39 |
178.09 |
179.26 |
175.92 |
1971 |
| 1972 |
177.63 |
177.11 |
176.39 |
176.02 |
178.72 |
179.28 |
179.29 |
179.00 |
179.11 |
178.78 |
179.05 |
178.81 |
178.27 |
179.47 |
175.57 |
1972 |
| 1973 |
178.42 |
177.87 |
177.00 |
178.71 |
179.28 |
179.46 |
179.22 |
178.98 |
179.20 |
179.22 |
178.77 |
178.64 |
178.73 |
179.55 |
176.79 |
1973 |
| 1974 |
177.88 |
177.20 |
176.57 |
176.48 |
179.33 |
179.39 |
179.27 |
178.97 |
178.77 |
179.24 |
179.41 |
178.99 |
178.47 |
179.67 |
175.91 |
1974 |
| 1975 |
178.13 |
177.25 |
176.15 |
175.95 |
178.39 |
179.33 |
179.00 |
178.87 |
178.64 |
178.71 |
178.75 |
178.37 |
178.13 |
179.57 |
175.50 |
1975 |
| 1976 |
177.49 |
176.23 |
176.03 |
177.83 |
179.24 |
179.27 |
179.21 |
178.87 |
178.83 |
178.88 |
178.60 |
178.12 |
178.22 |
179.48 |
175.83 |
1976 |
| 1977 |
177.06 |
176.55 |
176.20 |
177.41 |
178.91 |
179.22 |
179.12 |
178.80 |
178.76 |
179.00 |
179.26 |
179.09 |
178.29 |
179.42 |
176.10 |
1977 |
| 1978 |
178.34 |
177.21 |
175.97 |
175.61 |
177.82 |
179.36 |
179.14 |
178.76 |
178.80 |
179.25 |
178.90 |
178.90 |
178.18 |
179.49 |
175.39 |
1978 |
| 1979 |
178.22 |
177.05 |
176.15 |
177.16 |
179.26 |
179.46 |
179.12 |
179.28 |
179.16 |
179.28 |
179.41 |
179.27 |
178.58 |
179.57 |
176.05 |
1979 |
| 1980 |
178.40 |
177.09 |
176.12 |
177.20 |
179.22 |
179.21 |
179.36 |
179.16 |
179.00 |
179.14 |
179.19 |
178.75 |
178.49 |
179.43 |
175.86 |
1980 |
| 1981 |
178.08 |
177.55 |
177.16 |
178.28 |
179.29 |
179.47 |
179.29 |
178.83 |
178.80 |
179.03 |
178.97 |
178.57 |
178.62 |
179.53 |
176.41 |
1981 |
| 1982 |
178.45 |
177.75 |
175.97 |
175.93 |
178.56 |
179.34 |
179.23 |
178.84 |
178.69 |
179.15 |
179.32 |
179.32 |
178.39 |
179.45 |
175.43 |
1982 |
| 1983 |
178.98 |
177.91 |
176.55 |
176.59 |
179.14 |
179.43 |
179.28 |
178.96 |
178.60 |
178.95 |
179.27 |
179.19 |
178.58 |
179.69 |
175.89 |
1983 |
| 1984 |
178.41 |
177.11 |
176.09 |
176.85 |
178.83 |
179.44 |
179.39 |
179.31 |
179.03 |
178.92 |
179.31 |
179.36 |
178.51 |
179.55 |
175.81 |
1984 |
| 1985 |
178.63 |
177.05 |
176.17 |
176.39 |
179.20 |
179.39 |
179.35 |
179.10 |
178.83 |
178.87 |
179.16 |
179.07 |
178.45 |
179.58 |
175.68 |
1985 |
| 1986 |
178.33 |
176.79 |
175.75 |
176.81 |
178.91 |
179.28 |
179.20 |
179.13 |
179.07 |
179.21 |
179.00 |
178.24 |
178.32 |
179.39 |
175.55 |
1986 |
| 1987 |
177.92 |
176.86 |
175.71 |
176.54 |
177.70 |
178.66 |
179.21 |
178.84 |
178.58 |
178.66 |
178.93 |
178.94 |
178.05 |
179.31 |
175.39 |
1987 |
| 1988 |
178.54 |
176.85 |
175.60 |
177.61 |
179.11 |
179.32 |
179.06 |
179.03 |
179.15 |
179.31 |
179.28 |
179.16 |
178.51 |
179.46 |
175.45 |
1988 |
| 1989 |
178.80 |
177.03 |
175.79 |
176.32 |
178.35 |
179.35 |
179.27 |
178.92 |
178.59 |
178.52 |
179.05 |
179.05 |
178.26 |
179.55 |
175.65 |
1989 |
| 1990 |
178.17 |
176.51 |
176.00 |
176.33 |
178.84 |
179.36 |
179.33 |
179.27 |
179.02 |
179.39 |
179.27 |
179.30 |
178.41 |
179.59 |
175.66 |
1990 |
| 1991 |
178.89 |
177.20 |
175.86 |
177.54 |
178.99 |
179.38 |
179.27 |
178.96 |
178.72 |
178.87 |
179.37 |
179.16 |
178.53 |
179.55 |
175.62 |
1991 |
| 1992 |
178.26 |
176.63 |
175.71 |
175.71 |
178.53 |
179.37 |
179.12 |
178.82 |
179.09 |
179.03 |
179.29 |
179.13 |
178.23 |
179.51 |
175.18 |
1992 |
| 1993 |
178.68 |
177.19 |
175.69 |
176.24 |
178.65 |
179.27 |
179.26 |
179.16 |
179.22 |
179.36 |
179.25 |
179.02 |
178.43 |
179.56 |
175.49 |
1993 |
| 1994 |
178.88 |
177.71 |
176.07 |
176.02 |
178.57 |
179.27 |
179.33 |
179.08 |
178.99 |
179.04 |
179.10 |
179.00 |
178.43 |
179.46 |
175.42 |
1994 |
| 1995 |
177.87 |
177.10 |
176.55 |
176.33 |
178.72 |
179.26 |
179.11 |
178.89 |
178.66 |
178.69 |
179.20 |
178.88 |
178.28 |
179.41 |
175.87 |
1995 |
| 1996 |
177.67 |
177.10 |
176.28 |
176.12 |
178.92 |
179.37 |
179.37 |
179.17 |
179.04 |
179.09 |
178.95 |
178.83 |
178.33 |
179.48 |
175.46 |
1996 |
| 1997 |
178.95 |
178.27 |
176.43 |
176.58 |
178.93 |
179.23 |
179.31 |
179.02 |
178.84 |
178.65 |
178.76 |
178.78 |
178.48 |
179.39 |
175.48 |
1997 |
| 1998 |
178.43 |
177.28 |
175.88 |
178.54 |
178.98 |
179.31 |
179.14 |
178.82 |
178.68 |
178.68 |
178.59 |
179.08 |
178.46 |
179.37 |
175.52 |
1998 |
| 1999 |
178.83 |
177.79 |
176.13 |
176.71 |
178.10 |
179.19 |
179.26 |
179.05 |
178.81 |
179.17 |
179.16 |
179.23 |
178.46 |
179.41 |
175.63 |
1999 |
| 2000 |
178.84 |
177.43 |
176.49 |
177.43 |
178.85 |
179.33 |
179.29 |
179.21 |
178.90 |
178.65 |
178.98 |
178.96 |
178.53 |
179.44 |
176.26 |
2000 |
| 2001 |
178.41 |
177.55 |
176.07 |
176.83 |
179.18 |
179.25 |
179.14 |
178.87 |
178.77 |
179.13 |
179.16 |
179.14 |
178.47 |
179.47 |
175.50 |
2001 |
| 2002 |
178.37 |
177.02 |
176.26 |
177.24 |
179.09 |
179.34 |
179.22 |
179.07 |
178.75 |
178.63 |
178.69 |
178.94 |
178.40 |
179.53 |
175.87 |
2002 |
| 2003 |
178.70 |
177.26 |
175.97 |
176.04 |
178.10 |
179.31 |
179.33 |
179.15 |
178.79 |
178.81 |
179.20 |
179.06 |
178.32 |
179.42 |
175.54 |
2003 |
| 2004 |
178.41 |
177.04 |
176.00 |
176.89 |
179.01 |
179.25 |
179.32 |
179.08 |
178.98 |
178.72 |
178.75 |
178.68 |
178.35 |
179.53 |
175.77 |
2004 |
| 2005 |
178.29 |
177.03 |
175.72 |
176.81 |
178.75 |
179.13 |
179.14 |
178.88 |
178.69 |
178.82 |
179.05 |
--- |
178.27 |
179.27 |
175.48 |
2005 |
| 2006 |
178.62 |
177.56 |
176.21 |
177.81 |
179.14 |
179.23 |
179.17 |
179.22 |
178.94 |
179.11 |
179.21 |
179.27 |
178.63 |
179.42 |
175.85 |
2006 |
| 2007 |
178.68 |
177.62 |
176.18 |
176.85 |
178.87 |
179.29 |
179.22 |
178.98 |
178.78 |
178.67 |
178.86 |
178.68 |
178.40 |
179.46 |
175.77 |
2007 |
| 2008 |
178.57 |
178.09 |
176.16 |
176.86 |
179.14 |
179.27 |
179.16 |
179.20 |
179.12 |
179.01 |
179.07 |
178.95 |
178.55 |
179.48 |
175.54 |
2008 |
| 2009 |
178.75 |
177.31 |
176.12 |
177.04 |
179.12 |
179.09 |
179.24 |
179.23 |
179.00 |
178.90 |
178.94 |
179.01 |
178.49 |
179.38 |
175.83 |
2009 |
| 2010 |
178.57 |
177.10 |
175.98 |
177.32 |
178.75 |
178.97 |
178.94 |
178.79 |
178.97 |
179.05 |
179.12 |
179.13 |
178.40 |
179.42 |
175.87 |
2010 |
| 2011 |
178.63 |
177.19 |
176.03 |
176.49 |
179.02 |
179.15 |
179.27 |
179.26 |
--- |
--- |
--- |
--- |
--- |
179.42 |
175.72 |
2011 |
| . |
| Mean - Moyen |
178.22 |
177.23 |
176.35 |
176.98 |
178.88 |
179.28 |
179.19 |
179.00 |
178.84 |
178.91 |
178.99 |
178.84 |
178.40 |
179.56 |
175.96 |
Mean - Moyen |
| Year |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual Means |
Maximum |
Minimum |
Year |
| Année |
Jan |
Fév |
Mars |
Avr |
Mai |
Juin |
Juil |
Août |
Sept |
Oct |
Nov |
Déc |
Moyens annuels |
Année |
|