Northern_Ireland Raindays>=1.0mm Areal series, starting from 1961 Allowances have been made for topographic, coastal and urban effects where relationships are found to exist. Seasons: Winter=Dec-Feb, Spring=Mar-May, Summer=June-Aug, Autumn=Sept-Nov. (Winter: Year refers to Jan/Feb). Values are ranked and displayed to 1 dp. Where values are equal, rankings are based in order of year descending. Data are provisional from January 2018 and Winter 2018. Last updated 04/06/2019. JAN Year FEB Year MAR Year APR Year MAY Year JUN Year JUL Year AUG Year SEP Year OCT Year NOV Year DEC Year WIN Year SPR Year SUM Year AUT Year ANN Year 24.1 1986 23.3 2014 25.0 1994 19.0 1961 22.4 2003 19.5 1980 22.8 1988 27.2 1985 21.2 1980 23.7 1967 23.6 2002 26.3 2015 67.5 2016 56.8 1986 60.0 1985 64.9 2000 199.3 1998 23.6 2016 23.3 1990 23.1 1988 18.9 1992 22.1 1986 19.4 2002 20.8 2009 20.7 2008 20.8 2017 22.5 2000 23.5 2000 26.0 2011 66.8 2014 54.5 1979 53.5 2012 61.2 1970 196.8 1967 23.6 2014 21.7 2002 23.0 1992 18.6 1998 21.2 1981 19.1 2012 20.2 2007 20.5 2009 20.8 1975 21.6 1981 23.0 1992 25.3 1966 63.9 1995 52.7 1992 52.3 1998 58.2 1967 194.6 1979 23.5 1993 21.3 2000 22.5 1978 18.4 1970 20.9 1976 18.1 1998 19.0 2016 20.3 2014 20.6 1974 21.2 1996 22.3 1982 24.2 1993 63.2 1994 51.6 2009 50.9 1980 56.9 2011 194.4 2011 23.3 1975 20.6 1997 21.8 2008 18.0 1979 20.6 2011 17.8 1972 18.8 2015 20.2 1962 20.5 1970 21.2 1990 22.1 1970 24.0 1999 59.3 2000 50.8 1963 50.5 2017 56.7 1982 194.2 2002 23.2 1994 20.2 1995 21.5 1986 18.0 1977 20.0 1972 17.7 1991 18.6 1993 19.9 1992 19.2 1984 21.1 2011 21.9 2015 22.8 1986 58.7 1999 50.4 2006 50.5 2009 56.4 2017 193.4 1999 22.9 2008 19.9 1966 20.1 1989 17.5 1965 19.9 1979 17.3 1990 18.3 2010 18.7 2018 19.0 2010 20.8 2008 21.9 1979 22.7 1965 57.9 1974 49.3 1994 50.2 2007 56.4 1974 192.5 1966 22.9 1984 19.5 1977 20.0 1995 17.4 2009 19.9 1967 17.2 1966 18.0 1998 18.4 1988 19.0 1999 20.7 1989 21.7 2009 22.4 1974 57.3 1984 49.3 1967 50.1 2008 56.3 1981 192.4 2000 22.3 1990 19.2 2011 19.9 1983 17.4 1993 19.4 1963 16.9 1965 17.9 1986 18.1 2017 18.9 2011 20.5 1998 20.9 1977 22.3 1994 57.1 1990 48.3 1983 48.0 2016 55.9 1979 192.2 1994 22.3 1974 19.2 1989 19.2 1980 17.1 1999 19.1 2009 16.7 1987 17.7 1985 18.1 1989 18.9 2000 20.5 1979 20.1 1998 22.3 1980 56.7 2012 48.3 1966 47.9 1965 55.4 1998 192.2 1980 22.2 1988 18.2 1992 19.1 2019 16.8 1996 18.8 2015 15.8 2011 17.3 2017 18.0 1963 18.8 1968 20.3 2001 20.0 1991 21.2 1982 56.7 1967 48.1 1965 47.6 1988 55.0 1980 191.4 2015 22.1 2018 17.6 2016 19.1 1967 16.2 1994 18.2 2002 15.5 2007 17.3 2012 17.8 2001 18.6 1981 19.4 1983 19.3 1963 21.0 1998 55.5 2007 47.7 1972 46.8 1963 53.9 1984 191.1 2014 21.9 2015 17.0 1970 19.0 1981 16.1 2018 17.9 1969 15.5 2004 17.3 1970 17.8 1979 18.6 1962 19.4 1963 19.1 2017 20.7 2014 55.4 2015 47.3 1981 46.0 2002 53.2 1963 190.8 1970 21.9 1976 16.8 1988 18.9 1982 16.1 1975 16.7 1983 15.1 2017 16.5 1980 17.4 1961 18.5 1967 18.6 1984 19.0 2006 20.4 2006 54.3 2018 46.3 2002 45.9 2015 53.1 2006 189.7 2008 21.4 1995 16.8 1961 18.6 1987 16.0 2000 16.6 1966 15.1 1985 16.5 1974 17.2 2012 18.3 1961 18.6 1970 19.0 1996 20.0 2012 54.0 1966 46.3 1970 44.5 2014 52.6 1992 189.5 1981 21.0 1999 16.7 1999 18.4 2014 15.7 2006 16.4 2006 15.0 2016 16.2 2002 17.1 2015 17.4 1985 18.5 1982 18.6 1978 19.9 1983 53.6 1981 45.6 1993 44.0 2004 51.4 1977 189.1 2009 20.9 2013 16.7 1980 18.4 1970 15.7 2004 16.4 2005 14.8 1971 16.2 1992 17.1 1982 17.0 2006 18.5 1976 18.6 1974 19.8 2013 52.9 1975 44.8 2015 43.9 1990 50.4 1961 188.1 1974 20.9 1969 16.6 1974 18.3 2006 15.7 1985 15.8 2013 14.8 1963 16.0 2003 16.8 1973 17.0 1978 18.5 1961 18.4 1972 19.1 1973 52.5 2002 44.4 1999 43.5 1974 50.3 2008 188.0 1990 20.8 1983 16.0 1982 17.7 1966 15.2 2016 15.8 1996 14.4 1982 15.6 1997 16.7 2006 16.7 2016 18.4 1980 18.0 1986 19.1 1964 51.9 2013 44.2 1985 43.3 1986 49.3 2001 186.6 1986 20.4 1978 15.8 1994 17.6 1963 15.1 1964 15.7 2014 13.9 2008 15.5 2008 16.5 1965 16.7 1983 18.0 2013 17.7 1997 18.8 2004 51.9 2008 43.7 1976 42.5 1966 48.9 1978 186.5 1982 20.2 1962 15.7 2007 16.6 1991 15.0 1991 15.3 1965 13.8 1994 15.4 1981 16.2 1998 16.2 2004 17.9 2014 17.4 1969 18.7 1979 51.7 1980 43.5 2005 42.4 2001 48.9 1968 186.1 2017 19.4 2007 15.2 1973 16.6 1979 14.5 2002 15.2 1993 13.7 1981 14.9 2014 15.9 1971 15.9 2012 17.8 1988 17.3 2007 18.7 1978 51.0 1988 43.3 2014 42.3 1962 48.2 2002 185.9 1992 19.3 1968 15.0 1969 16.5 1977 14.4 2001 15.2 1973 13.6 1999 14.9 1967 15.8 1986 15.9 2005 17.8 1968 17.3 1971 18.5 1967 50.9 1983 42.7 1998 41.4 2011 48.0 2005 184.4 1965 18.9 1981 14.8 1967 16.1 2017 14.2 2012 14.8 1974 13.4 1969 14.8 1995 15.8 1974 15.9 1987 17.7 2004 16.9 2011 18.1 2017 50.7 1970 42.6 2003 41.3 1994 47.6 1996 184.1 1988 18.8 2002 14.4 1984 16.0 2015 14.1 1972 14.6 1964 13.2 2001 14.5 1965 15.8 1967 15.9 1982 17.6 1995 16.9 2010 17.9 1977 50.2 1978 42.5 1995 41.3 1979 47.3 2012 183.7 2012 18.6 2005 14.2 2017 16.0 1985 14.0 1966 14.3 1997 13.1 1997 14.0 1963 15.7 1964 15.6 1964 17.2 2002 16.9 1965 17.8 2018 50.1 1969 42.4 2019 41.2 1992 47.3 2010 180.8 1985 18.4 2004 14.1 2018 15.3 1998 13.9 2013 14.0 2007 12.8 1964 13.6 1978 15.6 1990 15.3 1992 17.2 1974 16.8 1973 17.7 1984 48.6 1973 42.2 1964 41.2 1971 47.3 2004 178.7 1978 18.0 1972 13.7 1972 15.3 1965 13.9 2005 13.7 2000 12.7 2003 13.6 1973 15.4 2004 15.3 1988 17.0 2006 16.7 2018 17.5 1997 48.4 2005 41.9 2013 41.1 1999 47.1 1964 178.1 1977 17.7 1965 13.4 2012 15.1 2009 13.8 1963 13.5 1968 12.7 1968 13.3 1996 15.3 2000 14.8 1998 16.6 1966 16.6 1966 17.0 1972 48.3 1977 41.8 1996 40.8 1993 47.0 1975 177.5 2006 17.3 2012 13.4 1996 14.8 1976 13.7 1990 13.2 1982 12.3 2013 13.2 1994 15.0 1999 14.6 1963 16.5 2017 16.5 2005 16.7 1985 48.3 1968 41.7 1989 40.7 1991 46.8 1995 176.9 2016 17.3 1970 13.4 1971 14.5 1968 13.6 1989 13.2 1962 12.3 1978 13.1 2004 15.0 1980 14.1 2008 16.5 1986 16.1 1984 16.6 2007 47.4 1989 41.6 1977 40.7 1987 46.6 1990 175.5 1961 16.9 2003 12.9 2015 14.4 2018 13.3 1986 12.9 1999 12.0 1979 12.9 1966 14.5 2007 14.1 1977 16.4 1977 16.1 1981 16.5 2000 46.6 1982 41.2 1988 40.7 1964 46.1 2009 175.1 2004 16.7 1967 12.5 1981 14.4 1999 12.6 1968 12.8 1995 11.9 1961 12.7 1991 14.2 1994 13.9 1995 16.0 1991 15.9 2012 16.4 1969 45.4 1998 40.7 2000 40.6 1997 46.1 1999 174.5 1993 16.7 1961 12.5 1962 14.3 2016 12.5 2008 12.5 1985 11.7 2000 12.6 1972 14.1 2011 13.7 2018 16.0 1964 15.9 1967 15.4 2003 45.4 1962 40.6 1968 40.1 1972 45.7 1991 172.6 2013 16.4 2009 12.4 2008 13.8 2004 12.3 1973 12.3 2019 11.6 1962 12.5 1999 14.0 2016 13.7 1993 15.6 2005 15.8 2003 15.3 1990 43.9 1993 40.3 2018 39.5 1973 45.2 1966 172.1 2018 16.4 1998 12.3 2001 13.8 1990 11.8 1969 12.1 1971 11.3 1974 12.4 1975 13.7 2005 13.7 1965 15.5 2012 15.8 2001 15.3 1981 43.7 1987 40.3 2016 39.5 1967 44.7 1987 171.2 2007 16.4 1973 11.9 1978 13.6 2002 11.7 1983 11.8 2017 11.2 2005 12.2 1964 13.4 2013 13.5 2003 15.2 2009 15.5 1964 14.9 1962 43.4 2004 40.1 2008 39.2 1981 44.3 1983 171.2 1963 16.3 1980 11.5 1998 13.6 1972 11.5 1962 11.6 1961 11.2 1993 12.1 1977 13.4 1987 13.5 1979 14.4 1987 15.4 2008 14.6 1976 43.1 1976 40.1 1978 39.2 1961 43.7 2013 169.4 1972 15.7 1979 11.4 1991 13.4 2007 11.0 2019 11.0 2012 11.2 1970 12.0 1976 13.3 1969 13.2 2001 14.2 1992 15.4 1980 14.4 2009 43.0 2019 39.7 1961 38.8 2010 43.2 1976 169.3 2005 15.5 1996 11.1 2005 13.1 2005 10.2 1967 10.8 1992 10.8 1976 11.6 1979 13.2 2010 13.1 1994 13.4 1971 15.2 1995 14.3 2005 42.8 1979 38.9 1987 38.8 1978 42.9 1965 168.2 1964 15.5 1991 11.1 2003 13.0 1993 10.1 1987 10.7 2016 10.7 1977 11.5 2011 12.9 1978 12.5 1976 13.3 1978 14.7 1994 14.2 1968 42.6 1986 38.8 1982 38.5 1982 42.6 1988 167.3 1995 15.3 1982 11.0 2013 12.5 1975 10.0 2003 10.6 2010 10.2 1989 11.3 2001 12.7 1996 12.2 1997 12.5 1999 14.6 1999 13.9 2008 42.3 1991 38.5 2011 37.3 1970 42.5 2018 165.9 1962 14.8 2010 10.9 2019 12.5 1964 9.9 2015 10.2 1987 10.1 1983 11.0 1990 12.4 1966 12.1 1966 12.5 1994 14.5 2014 13.7 1988 41.9 1965 37.2 1962 36.8 1969 42.3 1989 165.8 1973 14.7 1971 10.8 1976 12.5 1962 9.6 2010 10.0 1988 10.0 2015 10.6 1987 12.0 1997 11.9 1973 12.3 1965 14.4 1987 13.2 2002 41.4 2011 37.1 2004 35.9 1996 41.8 1997 165.3 1983 14.5 1989 10.7 2010 12.2 2013 9.6 1995 9.9 2018 10.0 1996 10.5 1971 11.5 1975 11.7 2013 12.1 2018 14.4 1975 12.7 1961 41.2 2003 36.6 2017 35.5 1989 41.5 2003 165.1 1969 14.4 2019 10.6 1987 11.9 2001 9.3 1978 9.5 2001 10.0 1984 10.5 1962 11.0 1993 11.3 1990 12.1 2003 14.1 1985 12.5 1992 40.4 2009 36.6 1990 35.3 2018 40.6 1985 164.6 1989 14.3 1977 10.6 1968 11.6 1984 9.2 2014 9.5 1970 9.6 1986 10.2 1969 10.7 1977 11.1 1989 12.1 1969 14.0 2013 12.0 2001 40.1 2001 36.5 1973 35.3 2013 40.3 1994 163.7 1996 13.9 2000 10.1 2009 11.4 1997 8.7 2017 9.1 1990 9.4 2014 9.8 2006 10.4 2002 10.6 2007 11.9 1997 14.0 1990 12.0 1987 39.9 2010 36.5 1969 35.2 2000 39.6 2015 163.1 2001 12.8 1985 9.6 2004 11.1 1971 8.1 1988 8.8 1998 9.2 2009 9.8 1961 10.3 1991 10.0 1969 11.8 1975 13.5 1961 11.8 2016 39.8 1972 35.8 2001 34.7 2003 39.5 1969 162.8 1984 12.4 2011 9.2 2006 11.0 2000 8.1 1984 8.3 1978 9.1 1973 9.7 2018 10.2 1984 9.8 1991 11.4 2010 13.4 2004 11.7 1970 39.7 1971 35.2 1991 34.0 2005 39.1 1973 162.7 1968 11.4 2001 9.2 1964 10.4 2010 8.0 1976 8.1 1994 8.8 1967 9.6 2013 10.1 1981 9.1 2009 10.4 1973 12.3 1968 11.4 1989 39.1 1996 33.8 1975 33.5 2006 38.9 1962 162.2 2003 11.4 1966 8.9 1983 10.3 2003 7.9 2011 8.1 1989 7.3 2010 9.0 2005 10.1 1968 8.1 1971 9.8 2015 12.2 1976 10.4 1991 37.4 1992 32.8 1997 33.5 1977 38.7 1971 160.8 1976 11.0 2006 8.4 1979 10.0 2011 7.9 1971 7.5 2004 7.0 2006 8.2 2000 9.7 1972 7.9 2015 9.5 2007 12.1 1962 10.4 1975 37.1 1985 32.3 2012 30.3 1975 37.8 1986 160.0 1997 10.3 2017 7.8 1993 9.3 1996 7.1 1997 7.1 1980 6.9 2018 7.8 1984 8.8 1970 7.4 2002 9.4 1972 11.7 2016 10.2 1995 36.6 1997 31.8 2007 29.2 1968 37.4 2007 159.1 1991 10.3 1987 7.2 1975 9.2 1974 7.1 1981 7.1 1977 6.4 1988 7.2 1989 7.8 1983 7.4 1996 9.1 1985 10.9 1993 9.8 2010 36.3 2017 31.0 1980 27.9 1984 35.7 2014 157.3 1987 9.9 1964 6.5 1985 9.1 1973 6.7 1982 6.1 1984 6.4 1975 7.0 1982 6.0 2003 5.0 1972 8.2 1962 10.5 1989 9.4 1996 34.4 2006 31.0 1971 26.7 1976 35.6 2016 152.1 1975 8.7 1992 6.3 1963 9.0 1961 4.7 1980 5.8 2008 5.8 1995 6.4 1968 5.6 1995 3.3 1986 8.0 1993 9.5 1988 8.0 1971 28.4 1963 30.7 2010 26.2 1995 32.8 1972 152.0 2010 7.2 1963 5.1 1965 7.1 2012 4.5 2007 5.1 1975 5.2 1992 5.3 1983 3.8 1976 3.2 2014 7.2 2016 8.1 1983 6.7 1963 25.8 1964 27.0 1974 23.1 1983 32.6 1993 147.0 1971 6.6 1997 1.8 1986 6.8 1969 3.0 1974 3.6 1991 25.8 1984