Cuelgo aqui un currillo metiendo el numero de dias con ola de frio de cada grupo de meses. Los dias que se superan los -5, -10 o -15 lo mismo para olas de calor, todo esto en el Pirineo central.
Año Invasiones frías Invasiones calidas
Ma,Ju,
En,Fr,Mz,abr No,Di Total frio Jl,Ag,Sep
<-5 <-10 <-15 <-5 <-10 <-5 <-10 <-15 >20 >25
1948 4 1 0 1 0 5 1 0 3 0
1949 11 0 0 2 0 13 0 0 6 1
1950 6 0 0 7 0 13 0 0 12 0
1951 2 0 0 0 0 2 0 0 4 0
1952 15 0 0 2 0 17 0 0 4 0
1953 18 0 0 1 0 19 0 0 2 0
1954 12 1 1 0 0 12 1 1 1 0
1955 10 0 0 0 0 10 0 0 1 0
1956 9 7 4 2 0 13 7 4 3 0
1957 3 0 0 0 0 3 0 0 9 0
1958 13 0 0 0 0 3 0 0 7 0
1959 5 0 0 0 0 5 0 0 4 0
1960 5 2 0 2 0 7 2 0 2 0
1961 0 0 0 0 0 0 0 0 3 0
1962 8 0 0 4 1 12 1 0 7 0
1963 17 0 0 3 0 20 0 0 8 0
1964 4 0 0 1 0 5 0 0 2 0
1965 11 0 0 1 0 12 0 0 4 0
1966 3 0 0 1 0 4 0 0 3 0
1967 3 0 0 4 0 7 0 0 6 0
1968 4 0 0 4 0 8 0 0 6 0
1969 15 0 0 5 0 20 0 0 4 0
1970 10 0 0 6 0 16 0 0 2 0
1971 9 4 0 2 0 11 4 0 7 0
1972 3 0 0 0 0 3 0 0 1 0
1973 6 0 0 2 1 8 1 0 8 0
1974 2 0 0 0 0 2 0 0 10 0
1975 4 0 0 0 0 4 0 0 9 0
1976 5 0 0 1 0 6 0 0 3 0
1977 5 0 0 1 0 6 0 0 0 0
1978 7 0 0 5 0 13 0 0 2 0
1979 3 0 0 3 0 6 0 0 5 0
1980 1 1 0 9 0 10 1 0 7 0
1981 8 0 0 0 0 8 0 0 4 0
1982 1 0 0 2 0 3 0 0 8 2
1983 7 1 0 0 0 7 1 0 15 1
1984 7 0 0 0 0 7 0 0 8 0
1985 11 6 0 4 0 17 6 0 7 0
1986 6 1 0 3 0 9 1 0 9 0
1987 10 2 0 0 0 10 2 0 13 3
1988 7 0 0 2 0 9 0 0 11 0
1989 0 0 0 0 0 0 0 0 4 0
1990 1 0 0 2 0 3 0 0 10 0
1991 7 0 0 0 0 7 0 0 13 0
1992 3 0 0 0 0 3 0 0 16 0
1993 7 0 0 0 0 7 0 0 14 0
1994 2 0 0 1 0 3 0 0 25 0
1995 2 0 0 2 0 4 0 0 8 1
1996 4 1 0 2 0 6 1 0 4 0
1997 1 0 0 1 0 2 0 0 6 0
1998 1 0 0 0 0 1 0 0 14 0
1999 9 0 0 5 0 14 0 0 6 1
2000 2 0 0 1 0 3 0 0 16 0
2001 1 0 0 4 0 5 0 0 12 1
2002 0 0 0 0 0 0 0 0 12 0
2003 9 0 0 1 0 10 0 0 25 0
2004 7 0 0 0 0 7 0 0 12 0
2005 22 4 0 3 0 25 4 0 12 0
2006 2 0 0 2 0 0 11 0