Wales 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 03/12/2018. Year JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC WIN SPR SUM AUT ANN 1910 146.2 173.6 53.3 109.7 75.3 135.6 120.5 190.5 13.5 130.3 192.3 227.7 --- 238.3 446.7 336.0 1568.5 1911 55.3 111.9 74.3 79.6 57.5 95.3 20.7 117.9 111.3 132.1 189.9 285.5 395.0 211.4 233.9 433.4 1331.3 1912 134.4 99.2 217.9 14.5 52.6 155.8 132.9 254.4 31.3 167.2 130.4 190.8 519.1 285.0 543.1 328.9 1581.3 1913 185.4 68.8 195.8 167.4 96.9 85.8 38.1 68.8 117.5 150.2 176.7 88.2 444.9 460.1 192.8 444.3 1439.5 1914 100.1 151.7 182.4 43.9 75.2 64.9 145.4 115.3 76.7 68.0 157.5 265.9 340.0 301.5 325.6 302.2 1447.1 1915 156.5 206.9 46.3 62.8 83.9 52.2 142.3 95.5 40.0 103.4 113.4 273.6 629.3 193.0 290.0 256.8 1376.9 1916 116.0 180.8 89.2 84.6 110.7 78.3 58.5 95.1 95.4 265.0 131.8 105.5 570.4 284.5 231.9 492.1 1410.8 1917 58.2 50.9 96.3 73.9 96.0 77.5 77.8 274.5 84.1 210.7 116.9 57.9 214.6 266.3 429.9 411.7 1274.8 1918 135.7 140.7 75.6 56.5 85.4 53.1 139.2 77.3 293.1 132.3 108.3 233.9 334.3 217.4 269.6 533.8 1531.2 1919 161.5 92.9 206.9 81.8 35.6 70.5 45.0 105.8 92.1 82.4 89.3 234.6 488.3 324.4 221.3 263.8 1298.6 1920 189.6 109.1 190.4 193.9 123.1 100.0 197.5 80.4 125.9 118.3 79.3 140.3 533.3 507.4 377.9 323.4 1647.7 1921 198.3 9.8 145.1 41.5 64.1 10.6 69.8 167.9 61.3 85.3 99.7 143.4 348.5 250.6 248.3 246.3 1096.7 1922 156.7 176.1 118.0 95.8 45.1 51.5 156.9 113.6 120.0 41.9 68.5 184.6 476.3 258.9 321.9 230.4 1328.7 1923 113.7 271.4 56.0 98.4 96.9 33.1 111.8 144.4 131.7 231.1 159.7 142.5 569.7 251.3 289.2 522.5 1590.6 1924 148.4 24.2 57.5 105.7 149.8 89.4 166.5 165.0 195.5 175.0 102.9 217.7 315.1 313.0 421.0 473.4 1597.6 1925 129.4 230.5 41.8 92.7 139.9 2.1 84.2 140.6 125.0 177.9 94.3 135.0 577.6 274.3 226.9 397.2 1393.3 1926 181.2 127.2 38.8 69.5 86.9 64.4 131.1 134.1 79.2 123.0 254.5 34.0 443.4 195.2 329.6 456.7 1324.0 1927 163.0 112.6 142.7 67.8 52.9 142.6 132.0 224.7 178.7 136.6 161.0 82.1 309.6 263.4 499.3 476.4 1596.7 1928 279.7 168.8 110.6 48.0 31.5 158.4 86.8 140.4 50.8 222.8 241.5 141.1 530.6 190.1 385.7 515.1 1680.4 1929 57.3 44.3 29.1 33.5 100.3 78.3 98.1 117.5 52.2 208.3 336.9 306.7 242.7 162.8 293.9 597.4 1462.4 1930 233.8 17.8 100.1 97.2 64.0 55.1 132.9 150.9 157.0 208.7 182.0 195.0 558.3 261.2 338.9 547.7 1594.5 1931 138.0 142.1 35.8 108.9 133.2 127.0 128.1 143.8 89.8 61.9 263.9 88.8 475.1 278.0 398.9 415.6 1461.3 1932 202.4 3.5 90.0 125.6 137.5 49.5 147.2 51.3 134.7 238.4 113.6 103.9 294.8 353.1 248.0 486.8 1397.8 1933 128.3 142.0 102.7 42.8 56.4 83.3 86.5 47.4 43.4 188.7 41.3 52.2 374.3 201.8 217.2 273.4 1015.0 1934 150.4 14.7 103.9 91.2 85.0 55.7 37.7 134.1 115.2 159.1 65.4 289.7 217.4 280.2 227.5 339.7 1302.3 1935 55.9 178.3 40.4 146.2 49.0 145.7 29.0 63.7 219.0 207.0 195.3 111.7 523.9 235.5 238.4 621.3 1441.2 1936 183.3 81.9 96.9 78.2 50.8 131.6 191.8 44.2 123.6 90.0 158.1 188.7 377.0 225.9 367.7 371.8 1419.2 1937 185.3 221.9 94.5 102.5 55.6 56.2 85.7 42.2 84.3 116.2 64.8 109.9 595.9 252.6 184.1 265.3 1219.2 1938 201.7 64.9 40.2 8.8 97.7 120.7 135.4 115.4 65.3 223.9 216.1 145.7 376.6 146.7 371.5 505.3 1436.0 1939 227.5 134.6 83.7 88.5 29.2 79.7 241.4 96.2 31.5 92.1 265.0 103.7 507.8 201.4 417.2 388.6 1473.1 1940 111.3 127.8 105.1 87.9 60.5 28.5 124.9 21.1 83.0 173.5 283.0 113.3 342.9 253.6 174.5 539.5 1320.0 1941 107.2 135.4 102.8 47.1 83.1 35.7 77.6 156.7 32.8 141.3 100.6 110.3 356.0 233.0 270.1 274.7 1130.7 1942 168.4 33.4 103.3 69.7 157.0 15.1 114.3 135.8 117.2 134.3 28.6 194.8 312.1 330.1 265.3 280.1 1272.1 1943 226.9 103.1 42.7 51.0 128.1 106.8 90.3 138.1 155.0 149.7 112.1 76.7 524.9 221.8 335.2 416.8 1380.6 1944 162.8 57.1 21.0 71.5 63.9 82.0 90.7 92.9 143.1 192.3 235.5 125.5 296.6 156.3 265.7 571.0 1338.4 1945 117.9 166.6 63.6 76.5 108.5 128.5 92.6 93.3 99.6 145.1 23.1 174.6 410.0 248.6 314.4 267.9 1290.0 1946 187.6 155.9 51.2 46.4 87.0 129.0 78.7 193.4 196.6 50.4 236.0 160.1 518.1 184.5 401.1 483.0 1572.2 1947 136.9 57.2 253.6 124.3 95.2 75.2 100.4 20.0 82.4 30.8 166.7 124.6 354.2 473.1 195.6 279.9 1267.4 1948 301.4 94.4 77.5 74.1 74.9 133.1 79.0 157.8 128.9 118.3 105.4 216.7 520.4 226.4 370.0 352.6 1561.4 1949 82.1 68.9 71.6 122.4 100.6 23.3 52.1 85.8 58.0 228.7 176.4 172.2 367.6 294.7 161.2 463.1 1242.1 1950 54.0 237.2 79.7 115.9 49.1 64.3 125.3 220.3 246.1 102.1 184.1 111.8 463.3 244.6 409.9 532.4 1589.8 1951 152.8 144.3 170.9 104.8 83.8 37.9 54.5 183.9 146.9 40.4 256.3 195.3 408.9 359.5 276.2 443.7 1571.9 1952 163.5 47.6 89.2 92.6 104.0 86.6 55.9 152.6 106.1 164.9 113.4 134.8 406.4 285.7 295.1 384.4 1311.1 1953 52.4 87.5 82.9 106.8 79.5 65.3 147.6 129.9 150.3 94.3 153.9 53.8 274.6 269.3 342.8 398.5 1204.2 1954 114.7 136.6 121.7 37.2 99.5 134.0 131.3 147.0 154.2 263.0 278.8 150.2 305.1 258.4 412.4 696.0 1768.2 1955 113.6 78.7 87.6 86.8 141.7 151.5 29.0 39.5 77.4 90.4 95.1 181.4 342.5 316.1 220.0 262.9 1172.7 1956 168.1 20.2 60.8 47.3 40.9 76.8 143.2 199.5 146.0 79.8 60.5 159.5 369.7 149.0 419.4 286.4 1202.6 1957 161.0 137.2 142.0 13.2 68.2 56.7 170.3 157.7 234.7 152.9 81.7 116.1 457.8 223.5 384.7 469.3 1491.8 1958 137.3 210.9 38.4 38.2 116.1 117.6 144.8 128.1 245.4 138.8 95.1 125.8 464.3 192.7 390.5 479.2 1536.4 1959 163.6 22.7 105.0 127.3 50.9 69.4 104.0 35.5 11.7 170.7 213.9 263.8 312.1 283.3 208.9 396.3 1338.5 1960 198.0 152.8 66.3 98.7 50.1 62.9 138.3 137.6 153.6 182.9 282.3 175.9 614.5 215.0 338.8 618.8 1699.4 1961 166.0 107.2 25.5 148.2 59.7 50.0 82.0 125.7 120.1 206.8 102.6 130.9 449.1 233.4 257.7 429.5 1324.6 1962 181.4 69.9 62.8 117.1 97.2 47.4 63.1 160.9 160.2 56.8 93.3 109.1 382.2 277.2 271.4 310.4 1219.3 1963 27.7 44.7 169.0 122.0 82.8 115.4 63.9 111.8 92.2 85.7 240.8 38.3 181.4 373.8 291.1 418.7 1194.3 1964 37.9 43.4 87.2 74.1 83.3 66.5 96.4 83.2 56.3 113.5 110.6 232.2 119.6 244.7 246.1 280.4 1084.7 1965 173.8 14.4 96.1 85.2 90.4 121.6 109.3 84.0 160.9 69.3 131.1 311.3 420.4 271.7 314.8 361.2 1447.3 1966 82.8 170.3 72.6 138.4 103.9 109.3 89.1 100.6 79.5 166.7 127.0 212.1 564.4 314.9 299.1 373.3 1452.4 1967 105.7 155.2 75.7 47.7 179.2 40.7 112.5 96.8 181.8 303.5 97.0 143.1 472.9 302.6 250.0 582.3 1538.9 1968 159.8 48.1 115.2 86.4 100.3 108.2 106.7 73.8 164.8 147.8 93.4 110.5 351.0 301.9 288.7 406.1 1315.2 1969 166.6 93.4 75.1 81.2 152.4 82.3 49.1 101.2 56.4 42.1 185.1 143.2 370.5 308.6 232.6 283.6 1228.0 1970 168.4 141.7 103.4 139.6 29.2 69.5 97.6 114.1 100.0 140.2 253.2 71.2 453.3 272.2 281.2 493.4 1428.1 1971 172.1 69.1 92.6 58.7 54.2 123.8 56.5 149.9 43.7 124.7 144.7 66.4 312.4 205.4 330.3 313.1 1156.4 1972 145.5 115.8 113.1 120.4 117.5 128.8 77.6 65.2 45.9 65.0 173.2 194.6 327.7 351.0 271.7 284.1 1362.6 1973 73.8 85.2 51.2 87.6 110.7 32.5 99.9 123.0 126.7 77.6 114.1 126.3 353.6 249.4 255.4 318.4 1108.5 1974 259.5 172.0 61.5 13.9 69.5 77.1 128.8 94.5 230.2 120.5 171.8 162.4 557.7 144.9 300.4 522.5 1561.7 1975 219.6 48.4 77.3 101.5 36.2 22.2 100.6 69.1 135.0 66.1 123.6 88.8 430.3 215.1 191.9 324.6 1088.4 1976 104.5 73.4 78.6 28.0 88.8 23.3 40.5 18.0 200.5 206.0 119.1 107.9 266.7 195.4 81.8 525.7 1088.7 1977 134.0 216.5 112.0 85.4 55.3 100.9 36.1 100.8 87.0 145.9 201.8 140.0 458.4 252.6 237.9 434.7 1415.6 1978 152.7 113.6 126.2 68.8 32.7 68.1 118.3 86.6 80.8 35.0 140.0 209.5 406.3 227.7 273.0 255.8 1232.3 1979 124.2 68.7 169.8 83.1 148.0 32.3 35.9 132.8 83.4 123.5 174.2 267.5 402.4 400.9 201.0 381.1 1443.5 1980 113.8 152.3 147.7 16.7 40.6 131.5 72.5 122.0 103.2 186.9 165.0 160.5 533.6 205.0 326.1 455.0 1412.7 1981 89.7 87.6 278.7 51.3 116.3 67.9 55.4 38.3 230.3 229.5 125.2 120.1 337.8 446.2 161.6 585.0 1490.2 1982 140.3 97.2 163.6 35.9 44.9 126.6 42.5 123.6 148.2 165.5 221.4 188.5 357.5 244.3 292.6 535.2 1498.0 1983 207.8 53.2 106.3 110.7 137.7 57.5 30.0 75.1 178.6 158.5 70.6 174.9 449.5 354.7 162.6 407.7 1360.9 1984 218.9 92.6 48.9 11.8 50.8 44.5 30.9 74.6 173.5 183.4 216.7 144.2 486.5 111.6 150.0 573.5 1290.9 1985 90.5 51.4 98.7 113.0 72.2 138.0 100.0 205.2 65.1 98.3 118.0 209.9 286.1 283.9 443.1 281.4 1360.2 1986 189.3 7.4 130.3 107.2 117.9 57.1 88.2 153.8 18.0 150.0 236.0 265.4 406.6 355.4 299.2 403.9 1520.6 1987 39.5 106.1 142.4 84.9 47.9 123.8 75.2 67.2 108.7 253.4 130.8 143.6 411.0 275.2 266.1 492.8 1323.5 1988 241.5 99.4 173.4 56.8 98.5 44.3 172.5 149.7 117.5 127.7 71.4 78.1 484.5 328.7 366.5 316.6 1430.7 1989 91.7 157.7 173.2 98.0 24.8 69.7 46.3 92.3 61.8 182.4 110.6 198.5 327.5 296.0 208.2 354.7 1306.8 1990 246.6 220.6 39.1 49.8 35.0 100.4 55.6 68.5 87.4 158.9 116.9 168.7 665.6 124.0 224.5 363.3 1347.6 1991 151.0 98.1 128.2 128.4 15.5 113.6 98.6 58.6 85.7 157.4 148.7 74.1 417.7 272.1 270.8 391.9 1258.0 1992 74.5 84.3 135.7 98.4 71.1 57.5 93.6 223.6 117.0 106.4 222.0 148.1 232.8 305.2 374.7 445.5 1432.2 1993 197.6 24.7 36.8 110.7 135.5 98.6 114.6 77.7 116.4 75.6 111.7 287.1 370.4 283.0 290.9 303.7 1387.0 1994 188.0 129.7 194.3 120.6 64.2 60.0 65.6 93.4 131.0 139.3 134.1 258.5 604.9 379.2 219.0 404.4 1578.8 1995 239.4 186.1 90.7 36.6 74.3 27.8 73.0 14.7 121.6 113.0 128.6 99.1 684.1 201.7 115.4 363.2 1204.9 1996 98.2 128.1 70.3 86.2 108.5 46.4 48.0 103.4 60.8 184.3 173.4 53.3 325.4 265.0 197.8 418.6 1161.0 1997 11.7 218.5 52.6 36.6 109.8 139.8 55.9 134.1 72.3 94.1 189.9 153.2 283.5 199.0 329.8 356.3 1268.5 1998 200.6 44.5 181.6 154.9 31.2 183.1 86.6 80.1 134.1 270.1 137.8 149.7 398.4 367.8 349.8 542.0 1654.3 1999 242.2 101.0 97.9 118.1 80.1 81.4 26.7 133.0 198.0 133.4 122.9 249.4 492.9 296.2 241.1 454.4 1584.3 2000 109.4 174.2 65.2 147.4 93.4 85.3 84.0 104.2 162.6 277.3 282.3 243.4 533.1 305.9 273.5 722.2 1828.6 2001 100.4 131.7 116.1 140.8 59.1 47.3 112.0 132.2 97.2 206.8 130.3 75.3 475.5 316.0 291.6 434.3 1349.2 2002 179.5 266.4 66.2 99.5 149.2 75.9 74.1 75.4 36.4 199.5 231.7 172.6 521.2 314.9 225.5 467.6 1626.6 2003 114.3 63.9 77.8 78.5 128.7 71.0 124.3 24.8 59.8 94.6 140.5 161.4 350.8 284.9 220.1 294.9 1139.5 2004 192.4 120.3 90.2 81.6 66.1 74.1 79.3 157.0 145.5 257.1 90.8 133.1 474.1 237.9 310.3 493.4 1487.3 2005 123.8 77.9 74.6 115.0 62.9 74.4 86.3 69.4 102.0 220.2 185.2 113.3 334.7 252.5 230.1 507.4 1305.0 2006 66.5 80.0 172.7 67.8 164.1 34.8 51.0 101.9 83.3 188.7 198.6 258.0 259.8 404.6 187.7 470.6 1467.6 2007 202.6 145.8 103.7 24.7 128.9 167.7 204.6 76.3 92.0 61.3 93.1 183.7 606.4 257.2 448.6 246.4 1484.3 2008 245.7 80.5 146.6 90.2 61.2 94.1 150.2 188.5 154.6 228.9 128.4 95.1 509.9 298.0 432.8 511.9 1663.9 2009 167.9 32.7 67.5 76.5 92.7 75.0 226.5 102.0 53.3 128.3 318.8 154.3 295.7 236.7 403.5 500.5 1495.7 2010 100.1 61.1 99.4 43.1 53.5 42.3 158.9 104.9 152.6 118.6 140.2 52.8 315.5 196.0 306.0 411.4 1127.5 2011 149.1 130.3 30.7 30.8 93.9 109.6 95.0 83.5 128.8 127.1 97.3 211.0 332.2 155.4 288.1 353.2 1287.1 2012 129.8 64.2 31.4 168.7 76.6 219.1 133.6 156.4 131.1 149.7 177.9 264.7 405.0 276.7 509.2 458.7 1703.3 2013 139.8 76.0 88.6 53.8 112.6 62.2 62.5 108.5 74.6 225.3 113.4 225.8 480.5 255.0 233.3 413.3 1343.2 2014 257.8 242.3 80.1 78.7 130.2 58.0 57.1 143.1 16.3 178.1 151.5 159.4 725.8 288.9 258.2 345.8 1552.5 2015 187.0 87.5 97.0 35.1 135.8 59.4 114.0 128.8 72.1 71.9 246.1 334.7 433.9 267.9 302.2 390.0 1569.4 2016 243.5 147.5 104.0 87.8 85.1 130.3 86.5 103.9 135.4 45.2 118.1 82.6 725.7 276.9 320.7 298.6 1369.8 2017 83.0 118.7 154.0 25.4 72.0 131.3 121.7 111.5 171.5 109.7 145.9 171.3 284.3 251.3 364.5 427.1 1415.8 2018 188.9 79.9 151.4 120.2 64.3 19.0 63.4 101.5 144.6 135.8 169.8 440.1 336.0 183.8 450.2