Northern_Ireland Rainfall (mm) Areal series, starting from 1910 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. Year JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC WIN SPR SUM AUT ANN 1910 93.2 159.2 48.6 68.7 63.1 99.6 107.0 181.4 32.0 47.5 89.8 124.0 --- 180.4 387.9 169.3 1114.0 1911 50.5 103.4 42.4 73.2 52.5 55.3 80.9 67.1 42.6 86.1 122.1 177.9 277.8 168.1 203.3 250.8 953.9 1912 104.4 94.5 122.2 53.4 37.4 152.6 113.2 154.4 31.5 88.7 103.8 152.8 376.8 213.1 420.3 224.0 1209.1 1913 142.4 47.0 101.6 111.6 93.6 87.0 43.7 32.8 102.4 83.8 110.2 100.7 342.2 306.7 163.4 296.4 1056.6 1914 64.0 137.8 127.9 52.6 55.4 37.9 68.8 103.1 48.7 47.3 135.1 198.8 302.5 235.8 209.9 231.1 1077.5 1915 104.0 122.7 35.2 74.9 33.6 63.8 129.5 94.8 40.6 81.8 79.5 174.0 425.5 143.7 288.1 201.8 1034.3 1916 94.3 118.9 49.5 116.2 156.1 61.9 81.3 79.2 32.6 189.2 118.8 87.7 387.2 321.7 222.3 340.6 1185.5 1917 68.4 63.5 83.7 76.2 99.7 66.7 61.2 159.7 65.8 182.0 149.3 86.1 219.6 259.5 287.6 397.2 1162.3 1918 90.8 127.9 35.6 43.1 74.3 48.4 111.0 104.8 163.8 122.6 126.2 138.5 304.8 153.0 264.2 412.6 1187.0 1919 128.8 34.2 101.5 62.4 50.8 87.0 19.7 101.8 93.5 54.3 95.1 224.1 301.5 214.7 208.5 242.8 1053.1 1920 143.6 79.9 100.2 93.8 103.0 70.8 99.8 78.0 81.2 145.7 112.7 119.3 447.5 297.1 248.6 339.6 1228.0 1921 148.4 28.5 102.7 40.3 60.9 11.5 113.3 111.0 42.4 101.1 108.4 130.4 296.2 203.9 235.9 251.8 998.9 1922 128.1 123.2 52.9 109.3 54.6 68.3 113.3 110.8 79.6 39.1 57.6 115.5 381.7 216.9 292.3 176.3 1052.3 1923 116.0 173.0 58.9 96.6 57.1 40.0 84.0 179.8 126.7 125.9 120.4 124.9 404.6 212.6 303.8 373.0 1303.3 1924 117.7 46.2 32.6 92.6 126.6 80.9 131.8 151.2 151.2 76.7 89.5 135.9 288.7 251.8 363.9 317.4 1232.7 1925 95.6 132.0 51.6 110.2 133.4 20.5 103.7 63.9 89.8 91.2 66.2 104.5 363.4 295.1 188.1 247.1 1062.4 1926 158.8 101.3 50.2 60.9 83.9 69.1 91.8 105.1 71.7 101.3 129.4 44.1 364.7 195.0 266.0 302.4 1067.6 1927 130.0 61.0 86.2 51.3 42.8 99.8 88.5 102.2 133.3 89.6 114.8 60.7 235.1 180.2 290.5 337.7 1060.2 1928 192.3 126.2 105.2 52.9 34.9 137.3 63.0 149.1 92.4 154.4 149.1 105.7 379.2 193.0 349.4 395.9 1362.5 1929 50.5 90.3 17.8 36.9 69.2 70.8 90.4 164.0 33.3 145.0 133.6 211.7 246.5 123.9 325.2 311.9 1113.5 1930 128.8 21.1 71.7 51.0 48.8 63.2 108.0 181.2 96.4 161.7 116.7 111.7 361.6 171.5 352.3 374.8 1160.2 1931 106.4 100.1 42.7 81.5 108.6 147.1 117.9 80.6 63.4 69.9 162.1 96.5 318.2 232.7 345.6 295.4 1176.6 1932 113.1 4.8 64.0 97.4 69.9 43.6 130.8 72.6 101.8 107.3 75.1 157.6 214.4 231.3 246.9 284.2 1037.8 1933 84.5 89.3 71.7 47.9 68.8 71.4 83.6 64.1 17.2 82.7 43.1 60.3 331.4 188.4 219.0 143.0 784.6 1934 108.8 11.3 65.6 83.2 85.2 54.5 68.2 143.0 156.9 139.6 34.6 161.1 180.4 233.9 265.7 331.1 1111.9 1935 57.0 117.0 40.8 81.8 30.4 111.6 37.3 69.0 135.0 147.5 131.0 96.4 335.2 153.0 217.9 413.4 1054.8 1936 128.3 64.5 69.0 27.9 46.3 88.3 186.2 74.4 120.5 91.8 121.6 119.3 289.2 143.2 348.9 333.8 1138.1 1937 159.2 137.0 68.9 68.9 40.2 62.9 119.4 93.0 86.0 60.4 45.3 94.5 415.5 177.9 275.2 191.7 1035.5 1938 137.3 51.1 48.8 8.2 82.2 114.4 141.2 69.6 78.6 182.6 159.4 123.1 283.0 139.3 325.2 420.7 1196.8 1939 106.9 92.5 102.1 65.7 29.0 66.4 129.8 46.8 66.3 74.9 156.6 95.2 322.6 196.8 243.1 297.8 1032.4 1940 103.7 85.7 125.8 112.2 35.5 36.5 124.5 29.7 85.9 133.0 138.7 139.8 284.6 273.5 190.8 357.6 1151.0 1941 63.1 95.9 98.8 52.5 61.0 14.6 97.1 123.7 35.2 134.8 133.2 64.0 298.8 212.3 235.5 303.2 973.9 1942 178.8 56.3 91.6 60.0 99.9 14.9 115.6 150.3 143.2 107.9 29.4 142.6 299.1 251.5 280.9 280.5 1190.7 1943 139.6 78.1 38.9 71.2 102.6 97.2 65.8 172.6 86.1 100.8 92.1 79.4 360.3 212.7 335.6 279.1 1124.4 1944 117.8 38.9 24.5 63.4 57.3 86.0 99.4 86.8 149.7 137.4 151.2 135.0 236.1 145.2 272.1 438.3 1147.3 1945 100.5 101.1 43.2 51.4 118.4 119.2 113.4 44.3 91.2 112.0 29.7 112.8 336.6 213.0 276.9 233.0 1037.3 1946 128.2 87.1 44.6 28.7 33.0 99.3 109.7 142.2 180.4 37.1 119.7 132.2 328.2 106.3 351.3 337.2 1142.4 1947 108.7 33.6 136.9 106.5 105.3 106.5 116.8 12.4 81.9 57.5 152.0 81.0 274.5 348.8 235.7 291.5 1099.3 1948 178.9 68.1 72.9 61.6 52.3 101.0 82.4 110.1 111.3 90.1 78.5 163.3 328.1 186.7 293.4 279.9 1170.4 1949 97.6 79.7 67.6 81.4 60.5 29.4 70.4 89.0 67.9 143.1 107.4 154.6 340.6 209.5 188.8 318.4 1048.6 1950 69.5 99.5 53.1 123.4 37.4 66.4 154.2 153.9 193.9 100.3 86.2 104.2 323.6 214.0 374.5 380.5 1242.1 1951 98.6 95.0 82.6 53.7 51.2 67.3 92.7 123.8 73.0 34.2 164.9 138.6 297.8 187.5 283.8 272.0 1075.4 1952 139.5 39.8 49.4 44.0 43.8 71.5 52.5 126.5 59.9 115.4 79.0 121.3 317.9 137.2 250.4 254.3 942.5 1953 40.0 39.7 16.4 56.1 62.3 48.8 135.9 94.4 91.5 62.8 102.7 92.8 201.0 134.8 279.1 257.1 843.4 1954 90.2 118.2 95.7 25.6 106.0 77.2 113.3 82.2 125.9 159.5 147.3 135.5 301.2 227.3 272.7 432.7 1276.6 1955 109.4 95.0 31.9 71.4 84.5 115.8 41.5 32.5 109.0 79.6 69.9 138.5 339.9 187.9 189.8 258.5 979.0 1956 95.9 45.9 51.9 38.9 40.9 87.4 117.7 181.9 100.3 81.1 67.4 141.3 280.3 131.7 387.0 248.8 1050.6 1957 136.5 78.6 88.8 40.2 58.0 45.3 125.9 125.3 139.6 106.4 42.7 145.0 356.3 187.0 296.4 288.7 1132.1 1958 118.7 124.6 48.4 48.4 80.1 142.5 132.2 129.6 110.5 83.6 57.8 141.8 388.3 177.0 404.3 251.9 1218.3 1959 70.8 30.2 79.8 89.0 35.6 66.0 96.4 36.3 45.2 127.9 127.0 160.5 242.8 204.4 198.7 300.1 964.7 1960 112.8 98.7 63.3 80.3 57.4 72.2 163.1 134.5 82.7 125.1 112.5 106.4 372.1 201.0 369.8 320.2 1209.0 1961 115.1 103.6 36.9 144.2 73.1 51.2 71.4 95.0 120.1 128.1 71.7 95.1 325.2 254.2 217.6 319.9 1105.6 1962 122.2 58.8 68.4 55.3 73.6 48.8 62.9 118.5 184.1 51.9 77.0 120.0 276.0 197.2 230.2 313.0 1041.4 1963 39.4 68.5 116.3 73.4 94.9 101.9 70.9 106.4 85.1 130.1 184.2 29.1 227.9 284.6 279.2 399.5 1100.3 1964 56.6 38.5 92.1 62.5 67.0 79.4 54.4 110.1 89.5 140.5 88.7 127.9 124.2 221.5 243.9 318.8 1007.2 1965 135.2 14.9 98.7 85.2 76.5 101.6 82.4 104.0 110.6 87.2 120.9 148.6 278.0 260.4 287.9 318.7 1165.8 1966 74.3 161.0 96.3 98.0 98.0 125.4 55.0 73.9 81.2 126.7 110.2 176.2 383.9 292.4 254.2 318.0 1276.1 1967 89.1 89.3 92.8 54.9 122.3 41.6 86.1 103.7 146.3 167.1 99.4 110.8 354.7 270.0 231.3 412.8 1203.4 1968 132.1 44.2 86.1 60.8 79.3 75.9 39.9 77.2 144.1 149.3 103.2 92.0 287.1 226.2 192.9 396.6 1084.0 1969 136.6 82.5 48.3 72.0 105.2 84.4 48.6 58.9 40.9 63.6 139.9 119.2 311.0 225.5 191.9 244.3 1000.0 1970 110.7 130.9 87.5 89.2 38.5 62.9 93.1 110.7 130.5 122.0 139.1 44.1 360.7 215.3 266.7 391.7 1159.3 1971 80.6 78.3 50.7 86.7 65.5 95.9 68.0 106.7 40.5 63.9 130.4 33.9 202.9 202.9 270.6 234.8 901.1 1972 132.4 81.1 114.4 83.7 118.0 89.7 71.8 59.2 14.8 56.8 117.1 98.1 247.5 316.2 220.7 188.6 1037.2 1973 117.7 81.2 33.5 57.5 83.0 44.9 81.5 97.2 77.5 59.4 116.7 114.0 297.1 174.0 223.6 253.6 964.1 1974 168.5 102.6 57.0 28.5 83.1 49.2 96.0 83.9 154.7 73.3 113.8 126.4 385.2 168.6 229.1 341.8 1137.0 1975 161.9 35.7 61.5 66.3 20.7 32.0 73.2 53.5 127.6 93.4 83.7 41.7 324.0 148.6 158.6 304.7 851.2 1976 136.3 55.2 86.6 33.4 118.3 58.7 66.5 17.2 120.8 188.6 74.0 101.8 233.2 238.3 142.4 383.4 1057.3 1977 110.6 162.1 87.1 79.8 28.4 55.1 54.0 93.6 76.2 108.6 127.8 104.7 374.4 195.3 202.7 312.6 1088.0 1978 141.6 75.1 124.0 35.3 32.0 60.5 75.0 82.0 124.5 57.0 124.3 200.6 321.5 191.3 217.5 305.9 1131.9 1979 94.1 31.3 100.4 85.8 96.2 55.2 54.7 138.4 81.3 135.1 167.3 126.0 325.9 282.3 248.2 383.7 1165.7 1980 113.8 97.5 113.8 19.2 35.1 113.9 92.2 86.8 131.4 144.3 89.8 143.9 337.3 168.1 292.9 365.5 1181.7 1981 109.7 73.9 130.5 45.9 146.3 87.1 82.4 42.4 176.6 152.9 93.3 95.9 327.5 322.7 211.8 422.8 1236.8 1982 107.5 90.2 113.7 24.3 67.5 120.8 21.2 94.8 99.1 127.9 163.3 144.7 293.5 205.4 236.8 390.2 1174.8 1983 127.0 50.2 117.8 56.9 83.1 51.2 23.3 34.1 111.1 140.3 40.6 140.5 321.9 257.8 108.5 292.1 976.1 1984 185.8 113.5 75.5 30.6 22.6 60.2 54.3 72.7 105.9 116.8 116.7 118.6 439.8 128.6 187.2 339.4 1073.1 1985 74.8 37.6 90.0 76.1 78.7 76.6 114.8 192.5 156.4 48.4 90.6 98.4 231.0 244.8 383.9 295.3 1134.8 1986 157.1 5.6 118.1 104.4 130.6 47.6 75.6 144.2 9.7 112.7 133.7 164.3 261.1 353.1 267.5 256.2 1203.7 1987 50.1 64.3 108.1 47.5 41.2 99.4 71.2 120.1 88.0 140.7 86.4 71.8 278.7 196.8 290.6 315.1 988.6 1988 180.1 116.8 140.6 40.9 47.6 48.9 135.6 132.4 113.1 146.2 58.7 93.4 368.7 229.1 316.9 318.0 1254.3 1989 76.6 105.5 127.9 107.7 32.9 58.9 45.0 118.0 54.8 148.0 50.2 76.5 275.5 268.5 221.9 253.0 1002.0 1990 139.9 193.6 65.5 73.7 50.3 126.4 63.2 91.4 48.1 208.5 88.3 121.4 410.1 189.4 281.0 344.9 1270.3 1991 101.6 57.3 113.7 119.7 11.3 99.1 64.8 39.3 61.1 109.8 143.3 124.2 280.2 244.7 203.1 314.2 1045.1 1992 81.1 94.1 146.8 109.9 48.8 40.0 91.2 172.1 90.5 85.4 139.2 85.5 299.3 305.4 303.3 315.1 1184.5 1993 141.2 31.6 68.4 125.0 138.5 74.5 110.8 69.7 107.6 41.2 60.6 198.2 258.4 331.8 254.9 209.4 1167.1 1994 156.4 135.1 134.7 90.9 39.0 69.6 68.9 91.2 73.6 65.3 94.2 152.4 489.7 264.6 229.6 233.1 1171.2 1995 153.5 122.7 110.9 37.5 53.5 32.7 79.8 13.8 85.1 173.2 152.4 65.5 428.5 201.9 126.2 410.8 1080.5 1996 121.2 99.9 55.8 115.2 89.9 46.7 71.0 111.0 41.3 151.6 127.6 65.1 286.7 260.9 228.7 320.4 1096.2 1997 31.6 140.8 51.4 47.2 104.8 94.4 99.8 71.0 57.8 80.9 126.4 137.0 237.5 203.4 265.2 265.1 1043.2 1998 120.0 51.6 86.0 100.0 48.0 116.6 126.4 93.7 83.6 178.6 133.2 121.6 308.7 233.9 336.6 395.3 1259.1 1999 144.5 88.7 63.1 96.4 63.8 67.5 53.8 95.4 178.2 57.6 111.2 218.4 354.8 223.3 216.6 347.0 1238.6 2000 63.8 111.4 57.2 102.2 65.1 60.4 40.8 104.9 131.0 178.2 155.2 153.2 393.7 224.6 206.1 464.3 1223.4 2001 65.5 68.0 68.2 74.7 50.9 65.9 62.9 109.8 58.1 112.9 79.0 83.1 286.7 193.7 238.6 250.1 899.0 2002 126.9 165.4 73.8 102.2 135.2 119.8 105.0 57.3 42.5 200.8 192.4 89.6 375.4 311.2 282.2 435.7 1411.0 2003 108.2 68.5 48.5 52.6 127.8 86.0 93.5 23.0 65.9 52.7 115.9 96.0 266.3 228.9 202.5 234.4 938.6 2004 133.5 51.1 87.1 78.8 48.9 109.1 63.1 114.0 106.1 133.2 60.9 107.7 280.6 214.8 286.1 300.2 1093.4 2005 136.1 60.1 76.5 91.8 102.9 55.6 45.7 91.0 89.4 129.6 83.0 111.9 303.9 271.2 192.3 302.0 1073.5 2006 51.5 46.8 142.1 73.1 113.8 36.5 68.0 91.7 136.5 125.4 130.7 139.4 210.2 328.9 196.2 392.6 1155.4 2007 129.7 86.6 81.4 28.8 71.5 148.0 131.2 104.7 58.1 56.8 87.6 112.3 355.7 181.7 384.0 202.5 1096.8 2008 186.3 60.7 132.1 47.2 18.7 75.9 121.6 201.4 118.8 147.0 81.4 79.7 359.2 197.9 398.9 347.3 1270.7 2009 134.5 38.2 65.0 110.1 100.7 58.9 133.8 165.4 40.8 115.5 220.0 77.2 252.4 275.8 358.2 376.3 1260.1 2010 87.9 61.9 107.4 57.1 43.4 45.7 137.5 62.9 162.2 65.4 146.7 69.1 227.0 207.8 246.1 374.3 1047.1 2011 66.7 136.7 54.4 35.6 107.3 104.1 70.1 72.6 125.5 210.7 130.3 158.5 272.5 197.3 246.7 466.5 1272.6 2012 115.6 67.3 25.5 69.6 62.6 179.0 105.1 112.9 110.6 120.5 83.2 134.7 341.4 157.7 396.9 314.4 1186.5 2013 141.4 74.0 89.9 77.3 104.8 84.2 73.7 56.1 69.0 157.5 66.1 144.7 350.0 271.9 214.1 292.5 1138.7 2014 173.2 171.2 85.9 43.8 90.9 56.6 72.5 135.8 9.7 134.0 177.7 145.3 489.0 220.6 264.9 321.4 1296.6 2015 142.0 83.1 100.9 60.9 124.0 45.6 119.9 120.3 46.4 69.4 190.5 220.2 370.4 285.8 285.9 306.4 1323.2 2016 175.7 110.8 72.2 78.4 58.5 89.0 98.0 68.0 96.8 45.3 82.3 78.3 506.6 209.0 254.9 224.4 1053.1 2017 55.0 74.6 107.2 25.3 56.4 103.3 122.5 124.1 146.8 105.7 112.8 116.1 207.9 188.9 349.8 365.3 1149.7 2018 170.9 74.0 85.8 80.9 58.3 49.1 80.6 102.0 57.0 69.6 146.1 109.5 361.0 224.9 231.8 272.6 1083.7 2019 52.0 75.5 158.6 78.5 58.5 237.0 295.7