Monthly Northern Ireland precipitation (mm). Daily automated values used after 1996. Wigley & Jones (J.Climatol.,1987), Gregory et al. (Int.J.Clim.,1991) Jones & Conway (Int.J.Climatol.,1997), Alexander & Jones (ASL,2001). Values may change after QC. Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual 1931 113.2 97.2 41.0 76.8 97.1 168.7 115.6 75.1 69.5 69.0 137.3 94.9 1155.4 1932 108.3 5.3 60.0 99.5 75.9 36.8 124.8 69.8 103.4 117.1 79.3 141.5 1021.7 1933 80.3 84.8 73.2 40.8 63.6 76.1 88.3 71.5 16.2 88.6 40.4 58.4 782.2 1934 102.9 11.7 70.3 79.6 85.0 50.8 66.9 141.3 141.5 140.8 38.5 144.4 1073.7 1935 56.0 107.5 40.0 81.9 34.8 110.5 34.6 69.0 134.0 149.4 122.0 94.4 1034.1 1936 109.7 64.6 66.9 25.6 43.5 93.6 176.5 80.8 129.1 99.3 120.6 108.9 1119.1 1937 132.4 127.2 62.3 68.0 44.5 65.4 118.6 84.8 81.6 53.5 43.0 95.3 976.6 1938 130.6 48.4 52.0 9.6 83.1 121.6 134.0 71.6 80.5 192.2 150.0 118.6 1192.2 1939 111.0 96.9 112.0 63.4 27.1 58.8 120.7 45.7 69.1 71.7 157.1 85.8 1019.3 1940 109.0 87.0 132.5 111.4 40.4 41.5 118.8 38.4 97.5 131.1 141.8 129.5 1178.9 1941 65.1 89.8 99.5 56.8 64.6 16.9 95.8 126.0 39.1 146.2 111.0 62.9 973.7 1942 166.6 56.7 89.3 58.3 91.1 17.7 110.2 157.2 150.1 113.5 33.8 124.4 1168.9 1943 126.8 74.0 37.9 70.7 108.1 106.9 67.6 163.9 83.6 97.8 97.3 76.6 1111.2 1944 120.5 47.8 27.3 63.5 61.7 87.9 89.3 88.5 143.9 132.4 159.8 125.1 1147.7 1945 97.8 99.5 48.7 48.5 114.2 122.3 116.8 45.3 86.6 114.4 30.6 105.3 1030.0 1946 118.0 87.5 52.3 30.2 31.8 105.4 93.9 139.5 176.1 35.4 127.5 128.6 1126.2 1947 89.7 32.7 136.9 101.0 106.2 99.6 102.9 12.5 87.3 61.4 164.7 95.3 1090.2 1948 180.7 68.6 70.3 66.5 55.7 102.2 88.8 115.4 117.8 102.3 83.0 144.7 1196.0 1949 104.4 78.3 75.8 87.7 59.4 32.9 77.4 96.3 67.1 138.3 115.2 152.6 1085.4 1950 70.6 100.2 51.7 129.4 38.9 68.9 146.4 149.5 205.5 95.2 84.3 97.5 1238.1 1951 96.6 87.1 86.6 57.9 49.5 63.8 93.6 119.9 71.5 34.7 168.2 134.7 1064.1 1952 133.3 40.2 50.8 42.3 43.8 77.4 56.1 124.7 67.9 117.9 86.7 122.0 963.1 1953 42.5 42.1 17.2 65.5 58.5 49.0 145.3 105.4 96.1 64.2 109.3 94.7 889.8 1954 87.2 111.1 97.6 27.2 110.4 82.8 125.5 84.9 129.4 171.0 146.7 141.1 1314.9 1955 106.4 98.9 33.0 72.4 81.4 122.1 39.1 27.8 106.8 79.6 60.9 125.6 954.0 1956 97.1 46.4 49.9 41.2 46.6 87.2 112.0 172.9 97.5 83.8 68.3 134.3 1037.2 1957 124.9 67.9 92.3 41.3 67.6 54.8 124.5 119.2 146.4 108.7 45.8 137.1 1130.5 1958 115.6 123.6 48.3 50.3 88.3 144.6 116.7 123.0 105.1 84.0 66.9 130.7 1197.1 1959 72.5 33.2 72.4 85.7 37.2 61.9 97.3 35.3 43.5 126.4 118.2 147.4 931.0 1960 102.5 92.5 64.2 67.9 59.7 79.8 149.9 126.2 82.6 116.3 106.6 99.0 1147.2 1961 105.3 97.4 40.6 125.4 67.2 57.3 72.9 95.8 106.1 114.9 70.9 86.4 1040.2 1962 111.6 61.1 59.8 57.2 59.3 45.0 58.9 127.8 159.1 51.7 76.7 112.8 981.0 1963 41.7 56.3 100.9 65.7 92.3 98.7 70.0 108.6 85.2 118.8 167.1 25.9 1031.2 1964 55.4 28.6 79.6 57.4 58.0 75.7 57.1 113.1 93.3 136.8 88.4 125.0 968.4 1965 126.1 14.9 91.0 87.5 69.4 106.0 74.8 103.1 105.8 87.9 123.8 139.0 1129.3 1966 62.8 146.0 94.2 94.1 90.0 119.2 56.8 63.5 82.1 115.9 107.5 172.1 1204.2 1967 75.9 75.8 83.3 52.8 108.8 41.3 88.8 106.6 129.4 159.3 97.8 109.6 1129.4 1968 127.5 39.9 83.8 56.5 70.2 69.5 45.6 68.9 127.9 143.2 98.4 78.1 1009.5 1969 123.6 75.7 47.7 63.2 104.9 76.0 43.3 53.1 39.2 58.3 136.8 110.0 931.8 1970 87.3 121.7 82.2 89.4 37.8 57.9 93.4 102.9 125.7 124.7 132.2 44.5 1099.7 1971 72.5 75.7 58.4 80.8 53.2 95.4 64.1 108.3 41.5 56.3 124.9 30.9 862.0 1972 116.5 61.0 109.2 78.0 95.6 85.4 62.2 55.8 14.3 48.7 109.8 89.8 926.3 1973 96.6 73.5 33.8 56.8 79.7 42.5 71.8 94.8 68.8 60.4 113.7 102.0 894.4 1974 140.9 83.3 45.3 28.2 73.7 56.1 94.9 75.2 150.8 74.6 105.9 112.7 1041.6 1975 149.4 33.4 53.6 67.5 21.9 32.8 89.1 59.7 131.4 82.2 88.1 41.8 850.9 1976 126.0 50.9 78.8 31.5 118.9 52.0 62.9 14.0 118.3 175.2 76.3 87.3 992.1 1977 98.5 150.9 76.3 81.8 28.0 54.9 56.8 88.4 74.6 91.9 119.1 94.3 1015.5 1978 124.2 66.2 113.9 35.5 28.3 58.7 68.0 84.2 113.2 55.3 117.7 181.5 1046.7 1979 95.2 28.0 92.3 80.1 87.6 50.2 49.7 117.6 74.4 115.7 154.2 111.7 1056.7 1980 117.4 96.7 103.4 17.1 28.3 105.5 86.8 83.1 115.5 138.9 85.9 131.7 1110.3 1981 101.7 63.0 122.3 54.7 131.0 91.1 75.8 39.3 167.7 166.0 91.1 85.6 1189.3 1982 96.7 80.2 109.0 22.3 61.6 106.7 18.0 93.6 94.1 119.5 147.1 139.0 1087.8 1983 117.6 49.2 115.5 55.9 66.9 50.1 19.7 34.9 97.7 138.1 38.1 134.9 918.6 1984 158.5 114.3 65.9 23.5 21.7 57.1 49.7 74.3 103.1 104.0 103.4 108.8 984.3 1985 67.4 36.8 84.4 73.4 75.6 73.4 107.6 179.3 152.7 45.6 79.8 92.4 1068.4 1986 157.0 4.2 111.5 99.2 116.7 52.0 77.0 129.6 9.4 107.0 129.8 148.5 1141.9 1987 48.7 60.9 103.8 47.3 39.7 92.5 73.7 113.0 79.9 129.1 78.2 61.3 928.1 1988 155.3 91.9 138.2 39.5 38.0 44.3 118.3 118.9 110.1 128.4 59.1 77.5 1119.5 1989 69.3 89.2 104.6 95.3 29.1 52.4 37.1 111.6 45.9 130.4 45.1 65.4 875.4 1990 127.7 167.2 58.4 72.4 47.0 110.9 55.8 82.1 43.8 206.4 74.2 111.0 1156.9 1991 93.8 50.1 108.8 109.4 11.6 82.6 58.5 38.4 62.4 103.1 130.0 109.8 958.5 1992 76.6 86.7 148.1 106.0 42.6 37.1 92.2 158.9 88.3 79.4 133.7 77.8 1127.4 1993 125.1 28.5 57.4 111.3 132.3 73.6 106.7 64.1 109.2 42.5 54.5 186.3 1091.5 1994 143.2 122.7 127.4 81.1 34.6 67.9 64.7 89.6 70.1 61.0 89.7 147.1 1099.1 1995 143.8 121.8 96.4 38.3 50.2 31.5 85.7 13.9 78.5 146.2 140.9 62.4 1009.6 1996 107.3 80.4 50.5 105.8 73.5 37.0 63.9 96.8 33.7 144.4 122.9 61.9 978.1 1997 23.1 124.2 44.2 40.0 91.5 71.7 95.6 62.2 58.4 78.7 130.3 121.4 941.3 1998 109.0 46.8 77.2 96.2 35.4 96.9 110.0 73.3 73.9 163.4 112.6 98.4 1093.1 1999 124.4 73.0 58.2 77.3 54.2 61.9 47.2 91.7 166.4 48.4 116.7 196.2 1115.6 2000 55.6 98.8 45.0 95.6 52.8 57.6 38.9 80.5 105.2 163.9 141.1 131.5 1066.5 2001 56.7 58.0 59.3 64.6 45.2 60.2 59.1 103.8 51.3 97.4 67.2 67.9 790.7 2002 114.3 137.8 64.3 69.2 106.8 109.5 95.1 49.8 35.6 178.8 163.9 68.3 1193.4 2003 83.7 58.0 43.9 44.6 103.2 73.3 76.5 19.0 60.7 43.9 133.5 88.9 829.2 2004 123.5 42.8 74.8 75.4 53.6 100.6 61.7 80.1 77.5 90.6 32.9 88.4 901.9 2005 133.9 48.3 65.6 100.8 79.6 57.4 40.6 66.7 78.2 98.1 78.7 79.3 927.2 2006 42.3 38.6 128.5 64.5 105.7 34.4 67.9 87.1 125.3 118.5 112.8 128.3 1053.9 2007 129.6 76.7 72.0 26.4 61.4 113.6 126.8 107.0 61.0 61.3 77.1 117.1 1030.0 2008 170.1 56.9 121.7 42.1 15.1 69.1 109.8 183.2 107.5 139.0 73.4 71.5 1159.4 2009 121.2 28.3 55.9 95.9 79.0 49.9 115.8 157.0 35.2 104.1 181.2 61.8 1085.3 2010 65.2 52.0 91.0 52.3 40.2 43.8 128.6 61.0 159.0 63.0 126.3 58.3 940.7 2011 58.3 105.7 52.6 33.0 98.3 94.5 68.4 67.0 108.3 193.1 110.3 129.2 1118.7 2012 106.2 52.4 21.2 69.0 49.4 160.6 92.1 112.4 96.8 109.6 69.0 115.3 1054.0 2013 125.6 66.0 87.2 69.5 93.7 77.7 73.8 58.0 53.2 152.5 53.6 111.9 1022.7 2014 147.5 130.7 82.2 43.6 80.0 55.1 57.9 139.2 8.1 128.6 167.6 113.8 1154.3 2015 108.2 66.9 83.2 54.2 118.0 43.1 108.2 116.1 45.9 63.8 158.7 189.0 1155.3 2016 156.4 100.4 68.4 69.3 53.2 94.0 99.1 68.1 95.5 50.9 68.1 75.0 998.4 2017 43.1 63.7 101.8 24.5 52.3 105.0 116.6 117.6 137.7 106.6 82.9 101.2 1053.0 2018 154.2 72.0 82.1 65.7 50.4 44.3 72.4 99.6 52.5 61.5 143.5 96.9 995.1 2019 42.9 72.8 144.4 74.6 46.1 107.6 80.7 161.2 105.3 99.7 110.6 97.0 1142.9 2020 59.0 193.1 61.5 19.5 30.3 122.2 96.3 136.7 72.6 163.1 103.0 115.2 1172.5 2021 109.4 91.9 73.4 21.5 104.0 33.6 38.7 96.6 72.3 133.8 55.1 116.4 946.7 2022 44.9 124.8 44.6 60.0 83.0 97.5 45.3 48.5 131.7 167.9 102.5 80.1 1030.8 2023 88.0 26.9 148.7 69.5 43.3 63.9 161.5 119.4 134.8 205.4 79.9 148.5 1289.9 2024 82.2 84.2 118.5 90.6 -99.9 -99.9 -99.9 -99.9 -99.9 -99.9 -99.9 -99.9 -99.9