|
|
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1937 | 80.2 | 92.7 | 199.6 | 112.9 | 52.1 | 159.7 | 123.1 | 115.8 | 48.6 | 984.7 ] | |||
| 1938 | 59.1 | 32.5 | 80.2 | 88.2 | 91.2 | 192.3 | 238.6 | 212.7 | 124.7 | 288.9 | 45.9 | 42.4 | 1496.7 |
| 1939 | 38.6 | 52.0 | 90.5 | 72.7 | 54.5 | 123.1 | 47.1 | 91.5 | 108.6 | 234.0 | 57.4 | 4.8 | 974.8 |
| 1940 | 5.5 | 114.5 | 56.8 | 131.3 | 41.2 | 354.0 | 154.8 | 149.2 | 23.4 | 93.6 | 51.1 | 33.2 | 1208.6 |
| 1941 | 77.3 | 84.5 | 84.8 | 66.4 | 181.4 | 338.4 | 165.3 | 225.0 | 307.8 | 83.6 | 92.2 | 96.8 | 1803.5 |
| 1942 | 9.5 | 78.3 | 136.8 | 128.9 | 110.8 | 251.8 | 9.3 | 145.1 | 147.2 | 90.7 | 48.8 | 9.8 | 1167.0 |
| 1943 | 29.4 | 57.1 | 50.5 | 95.0 | 125.8 | 130.1 | 354.6 | 162.3 | 138.7 | 203.5 | 39.9 | 37.0 | 1423.9 |
| 1944 | 42.3 | 38.5 | 122.6 | 132.4 | 76.7 | 40.5 | 81.7 | 264.2 | 115.7 | 319.5 | 155.4 | 30.7 | 1420.2 |
| 1945 | 0.3 | 47.3 | 110.7 | 39.4 | 100.3 | 236.3 | 202.1 | 141.2 | 265.1 | 315.9 | 90.9 | 40.9 | 1590.4 |
| 1946 | 53.2 | 58.0 | 123.9 | 162.7 | 119.4 | 215.0 | 130.3 | 110.7 | 150.1 | 185.0 | 85.2 | 70.7 | 1464.2 |
| 1947 | 54.4 | 22.2 | 66.9 | 66.3 | 181.9 | 81.8 | 53.9 | 106.5 | 208.8 | 82.0 | 25.9 | 72.6 | 1023.2 |
| 1948 | 43.9 | 68.9 | 104.6 | 121.0 | 65.4 | 124.3 | 128.7 | 164.4 | 233.4 | 47.6 | 100.8 | 58.8 | 1261.8 |
| 1949 | 40.6 | 52.2 | 95.7 | 85.6 | 144.2 | 268.2 | 250.0 | 39.7 | 259.8 | 169.3 | 105.0 | 116.7 | 1627.0 |
| 1950 | 111.6 | 42.3 | 84.5 | 87.9 | 119.0 | 300.6 | 173.2 | 136.8 | 204.5 | 154.3 | 76.4 | 92.9 | 1584.0 |
| 1951 | 46.1 | 64.1 | 113.7 | 127.7 | 122.7 | 182.9 | 270.4 | 27.8 | 128.7 | 84.0 | 127.3 | 66.2 | 1361.6 |
| 1952 | 61.7 | 60.6 | 112.8 | 126.1 | 158.4 | 280.7 | 364.8 | 35.2 | 156.8 | 131.3 | 158.5 | 35.2 | 1682.1 |
| 1953 | 45.4 | 71.2 | 97.3 | 51.1 | 170.6 | 332.0 | 379.4 | 450.8 | 386.0 | 48.0 | 37.5 | 34.5 | 2103.8 |
| 1954 | 91.8 | 56.3 | 80.1 | 102.6 | 160.3 | 367.1 | 228.6 | 71.2 | 238.2 | 66.3 | 49.5 | 52.6 | 1564.6 |
| 1955 | 54.3 | 64.7 | 164.9 | 116.6 | 126.1 | 119.4 | 122.2 | 113.3 | 61.1 | 216.5 | 45.7 | 10.6 | 1215.4 |
| 1956 | 44.9 | 35.1 | 119.9 | 131.3 | 266.7 | 174.3 | 71.5 | 175.4 | 282.5 | 185.2 | 34.5 | 7.4 | 1528.7 |
| 1957 | 46.7 | 55.3 | 46.9 | 133.3 | 139.4 | 240.5 | 264.4 | 149.2 | 341.8 | 22.8 | 72.8 | 64.4 | 1577.5 |
| 1958 | 93.0 | 57.9 | 101.5 | 199.2 | 86.4 | 220.0 | 69.6 | 272.9 | 361.6 | 140.3 | 71.3 | 74.7 | 1748.4 |
| 1959 | 98.3 | 128.9 | 76.3 | 145.2 | 169.3 | 98.7 | 173.9 | 284.3 | 343.8 | 120.7 | 116.4 | 95.6 | 1851.4 |
| 1960 | 23.3 | 17.1 | 63.0 | 96.4 | 154.6 | 197.9 | 103.2 | 397.2 | 158.1 | 70.6 | 97.7 | 30.8 | 1409.9 |
| 1961 | 64.8 | 25.5 | 87.1 | 135.6 | 128.9 | 466.9 | 133.8 | 109.5 | 93.6 | 452.1 | 64.6 | 21.0 | 1783.4 |
| 1962 | 53.9 | 16.5 | 44.3 | 148.6 | 134.7 | 343.4 | 246.5 | 255.6 | 27.9 | 104.2 | 85.8 | 56.9 | 1518.3 |
| 1963 | 25.7 | 37.2 | 87.4 | 106.2 | 330.8 | 187.6 | 175.4 | 252.0 | 115.3 | 83.6 | 39.2 | 25.8 | 1466.2 |
| 1964 | 89.0 | 84.4 | 78.6 | 107.1 | 55.2 | 143.5 | 163.9 | 76.3 | 149.6 | 102.8 | 34.7 | 27.5 | 1112.6 |
| 1965 | 52.7 | 24.6 | 131.8 | 88.7 | 269.3 | 206.3 | 209.1 | 6.6 | 472.3 | 42.9 | 85.4 | 60.0 | 1649.7 |
| 1966 | 53.1 | 85.2 | 141.7 | 100.3 | 130.4 | 230.2 | 184.9 | 140.7 | 149.4 | 85.0 | 46.4 | 24.7 | 1372.0 |
| 1967 | 78.8 | 41.9 | 125.7 | 216.6 | 72.8 | 105.3 | 285.5 | 93.6 | 136.6 | 180.7 | 70.0 | 42.5 | 1450.0 |
| 1968 | 38.0 | 71.5 | 94.0 | 116.0 | 126.0 | 132.0 | 369.0 | 370.5 | 186.0 | 126.0 | 18.0 | 116.0 | 1763.0 |
| 1969 | 64.5 | 103.5 | 129.0 | 92.5 | 81.0 | 265.0 | 234.0 | 114.0 | 52.5 | 58.5 | 57.5 | 31.5 | 1283.5 |
| 1970 | 34.0 | 70.5 | 59.5 | 202.0 | 113.0 | 246.0 | 148.0 | 122.0 | 142.0 | 80.5 | 118.5 | 51.0 | 1387.0 |
| 1971 | 26.5 | 47.5 | 98.5 | 110.5 | 161.0 | 192.5 | 335.0 | 140.5 | 166.0 | 152.5 | 6.0 | 78.5 | 1515.0 |
| 1972 | 109.0 | 119.0 | 95.0 | 122.0 | 117.5 | 201.5 | 474.5 | 150.0 | 311.0 | 55.0 | 102.0 | 57.5 | 1914.0 |
| 1973 | 111.5 | 67.5 | 15.0 | 252.0 | 130.5 | 124.5 | 53.0 | 188.0 | 81.5 | 145.5 | 18.5 | 8.0 | 1195.5 |
| 1974 | 17.5 | 50.0 | 94.5 | 154.0 | 68.0 | 191.5 | 496.5 | 197.5 | 107.5 | 152.0 | 59.5 | 61.0 | 1649.5 |
| 1975 | 30.0 | 42.5 | 33.5 | 126.0 | 84.0 | 215.0 | 149.0 | 238.0 | 149.0 | 231.0 | 60.5 | 51.0 | 1409.5 |
| 1976 | 3.5 | 97.0 | 88.5 | 102.0 | 200.0 | 213.0 | 220.5 | 175.5 | 459.0 | 128.0 | 60.0 | 35.5 | 1782.5 |
| 1977 | 22.0 | 34.0 | 154.5 | 121.5 | 109.0 | 293.5 | 33.5 | 38.0 | 167.5 | 34.5 | 134.0 | 32.5 | 1174.5 |
| 1978 | 26.5 | 16.5 | 39.0 | 72.5 | 83.0 | 243.0 | 39.5 | 85.5 | 106.5 | 98.0 | 48.0 | 39.5 | 897.5 |
| 1979 | 37.0 | 60.5 | 75.5 | 121.0 | 110.5 | 274.5 | 86.5 | 44.0 | 159.5 | 94.5 | 70.5 | 21.0 | 1155.0 |
| 1980 | 68.5 | 29.5 | 96.5 | 157.0 | 184.5 | 165.5 | 287.0 | 181.5 | 83.5 | 122.0 | 71.0 | 31.0 | 1477.5 |
| 1981 | 14.5 | 52.5 | 111.0 | 131.0 | 117.0 | 125.5 | 206.5 | 97.5 | 117.5 | 150.0 | 48.0 | 5.5 | 1176.5 |
| 1982 | 11.0 | 35.5 | 62.0 | 88.5 | 79.0 | 57.0 | 267.0 | 482.5 | 220.5 | 27.5 | 77.0 | 29.5 | 1437.0 |
| 1983 | 31.5 | 28.5 | 85.0 | 154.5 | 99.5 | 168.5 | 154.0 | 170.5 | 321.5 | 123.0 | 10.0 | 7.0 | 1353.5 |
| 1984 | 28.0 | 50.5 | 42.5 | 83.5 | 80.0 | 327.5 | 159.5 | 59.5 | 109.5 | 44.5 | 37.0 | 45.0 | 1067.0 |
| 1985 | 20.5 | 65.5 | 144.5 | 153.0 | 113.5 | 388.0 | 143.5 | 42.5 | 155.5 | 108.0 | 99.0 | 32.5 | 1466.0 |
| 1986 | 10.5 | 20.5 | 150.5 | 91.0 | 229.5 | 208.5 | 333.0 | 19.0 | 80.5 | 63.0 | 31.0 | 47.0 | 1284.0 |
| 1987 | 64.0 | 31.0 | 104.0 | 45.5 | 137.5 | 69.5 | 171.0 | 99.0 | 79.5 | 174.5 | 51.0 | 19.5 | 1046.0 |
| 1988 | 37.0 | 34.0 | 100.5 | 75.5 | 138.5 | 321.0 | 209.0 | 120.5 | 145.5 | 57.0 | 30.5 | 13.5 | 1282.5 |
| 1989 | 92.0 | 178.5 | 89.0 | 81.5 | 230.0 | 213.5 | 181.5 | 146.0 | 272.0 | 56.5 | 31.0 | 23.5 | 1595.0 |
| 1990 | 64.5 | 120.0 | 110.0 | 64.0 | 84.5 | 157.5 | 195.0 | 66.5 | 390.0 | 111.0 | 245.5 | 27.0 | 1635.5 |
| 1991 | 38.5 | 53.5 | 182.0 | 134.0 | 105.0 | 257.0 | 200.0 | 136.5 | 99.5 ) | 239.0 | 130.5 | 66.0 | 1641.5 |
| 1992 | 40.5 | 33.5 | 142.5 | 150.5 | 156.5 | 178.5 | 125.0 | 166.5 | 60.0 | 153.5 | 53.0 | 75.5 | 1335.5 |
| 1993 | 67.5 | 63.5 | 82.0 | 87.5 | 96.0 | 368.0 | 258.5 | 263.5 | 282.5 | 95.5 | 98.5 | 47.0 | 1810.0 |
| 1994 | 34.0 | 50.5 | 54.0 | 68.0 | 87.5 | 147.0 | 82.5 | 66.0 | 395.0 | 34.0 | 25.5 | 36.5 | 1080.5 |
| 1995 | 41.0 | 14.0 | 86.0 | 125.5 | 336.0 | 135.0 | 407.5 | 23.5 | 81.0 | 80.0 | 55.0 | 13.5 | 1398.0 |
| 1996 | 32.0 | 37.5 | 143.0 | 29.5 | 89.0 | 254.0 | 104.5 | 72.0 | 135.5 | 117.5 | 88.0 | 57.0 | 1159.5 |
| 1997 | 23.5 | 25.5 | 105.5 | 108.5 | 166.0 | 114.0 | 376.0 | 62.0 | 152.5 | 22.0 | 183.0 | 83.0 | 1421.5 |
| 1998 | 130.5 | 100.0 | 86.5 | 208.0 | 260.0 | 233.5 | 172.0 | 46.0 | 246.5 | 152.0 | 11.5 | 40.0 | 1686.5 |
| 1999 | 17.5 | 47.0 | 107.5 ) | 82.0 | 156.0 | 312.5 | 74.5 | 233.0 | 153.5 | 93.5 | 51.0 | 2.0 | 1330.0 |
| 2000 | 66.0 | 33.5 | 86.0 | 75.5 | 190.0 | 258.0 | 25.5 | 43.5 | 290.5 | 139.5 | 75.5 | 24.0 | 1307.5 |
| 2001 | 90.0 | 54.5 | 78.0 | 33.5 | 109.5 | 203.0 | 107.0 | 215.5 | 139.5 | 146.0 ) | 58.0 | 32.0 | 1266.5 |
| 2002 | 46.5 | 52.0 | 84.0 | 76.0 | 88.0 | 92.5 | 232.5 | 135.0 | 71.0 | 107.5 | 54.5 ) | 87.5 | 1127.0 |
| 2003 | 92.5 | 66.5 ) | 116.5 | 155.0 | 93.0 ) | 166.5 ) | 166.0 | 276.0 | 142.5 | 105.5 | 181.0 | 30.0 | 1591.0 |
| 2004 | 22.5 | 51.0 | 82.0 | 55.5 | 258.0 | 113.5 | 135.0 | 206.0 | 183.5 | 282.5 | 112.5 | 68.5 | 1570.5 |
| 2005 | 26.0 | 51.0 | 61.0 | 43.5 | 60.5 | 71.0 | 147.0 | 213.0 | 122.0 | 129.5 | 28.0 | 20.5 | 973.0 |
| 2006 | 45.5 | 112.0 | 91.0 | 96.5 | 120.5 | 179.5 | 335.0 | 38.5 | 138.5 | 93.0 | 61.0 | 111.0 | 1422.0 |
| 2007 | 41.0 | 68.0 | 46.0 | 61.0 ) | 135.0 | 175.0 | 251.5 | 97.0 | 86.0 | 75.0 | 17.5 | 104.5 | 1157.5 |
| 2008 | 47.0 | 51.0 | 112.5 | 157.0 | 221.5 | 224.5 | 125.5 | 87.0 | 241.5 | 60.0 ) | 39.5 ) | 27.5 | 1394.5 |
| 2009 | 93.5 | 71.0 | 105.5 | 108.0 | 116.0 | 157.5 | 176.0 | 50.0 | 25.5 | 235.0 | 141.5 | 34.0 | 1313.5 |
| 2010 | 29.5 | 124.0 | 173.5 | 175.0 | 160.5 | 184.0 | 194.5 | 96.0 | 188.5 | 163.0 | 31.5 | 68.5 | 1588.5 |
| 2011 | 4.0 | 90.0 | 71.0 | 88.5 | 280.5 | 206.5 | 286.0 | 79.0 | 357.0 | 118.5 | 63.5 | 11.5 | 1656.0 |
| 2012 | 40.0 | 119.0 | 187.5 | 75.0 | 79.0 | 234.0 | 212.0 | 113.5 | 295.5 | 87.0 | 83.5 | 83.5 | 1609.5 |
| 2013 | 45.0 | 85.0 | 88.0 | 102.5 | 47.5 | 237.0 | 86.0 | 85.0 | 371.5 | 229.5 | 64.0 | 40.0 | 1481.0 |
| 2014 | 51.0 | 58.5 | 127.0 | 81.5 | 74.0 | 81.0 | 131.0 | 357.0 | 128.5 | 117.5 | 83.0 | 55.0 | 1345.0 |
| 2015 | 109.5 | 38.0 | 149.5 | 108.5 | 78.5 | 222.5 | 298.0 | 182.5 | 190.5 | 29.5 | 120.5 | 48.0 | 1575.5 |
| 2016 | 57.0 | 66.5 | 73.5 | 143.0 | 122.5 | 251.5 | 111.0 | 142.5 | 305.0 | 52.0 | 84.5 | 89.5 | 1498.5 |
| 2017 | 58.0 | 52.5 | 75.5 | 83.5 | 89.5 | 141.5 | 84.0 | 206.5 | 158.0 | 511.0 | 54.5 | 26.5 | 1541.0 |
| 2018 | 51.5 | 18.5 | 132.5 | 171.0 | 202.5 | 240.0 | 260.0 | 132.5 | 364.0 | 33.0 | 53.0 | 64.0 | 1722.5 |
| 2019 | 25.0 | 53.5 | 81.5 | 104.5 | 101.0 | 151.0 | 255.5 | 247.0 | 24.0 | 368.0 | 28.5 | 65.0 | 1504.5 |
| 2020 | 62.0 ) | 60.0 | 115.5 | 138.5 | 111.0 | 240.5 | 408.0 | 19.5 | 191.0 | 330.0 | 31.0 | 13.0 | 1720.0 |
| 2021 | 74.5 | 44.5 | 112.5 | 116.0 | 199.5 | 175.0 | 275.5 | 264.0 | 218.0 | 37.0 | 57.5 | 89.0 | 1663.0 |
| 2022 | 20.5 | 15.0 | 83.0 | 112.0 | 117.5 | 150.0 | 148.0 ) | 162.0 | 244.5 | 86.5 | 73.0 | 17.5 | 1229.5 |
| 2023 | 25.0 | 47.0 | 61.5 | 129.5 | 159.5 | 260.5 | 103.5 | 219.0 | 51.5 | 90.0 | 73.5 | 30.0 | 1250.5 |
| 2024 | 29.5 | 72.0 | 230.5 | 128.5 | 159.5 | 326.0 | 179.5 | 163.5 | 35.0 | 130.0 | 112.0 | 4.5 | 1570.5 |
| 2025 | 18.0 | 22.5 | 64.5 | 74.0 | 180.0 | 224.5 | 84.5 | 43.0 | 116.0 | 171.0 | 31.5 | 36.5 | 1066.0 |
| 2026 | 0.5 | 33.0 | 70.0 | 191.5 | 91.5 | 376.0 | 182.5 | × | 945.0 ] |
Remarks
The red lines, if any, indicate data inhomogeneity caused by changes in instrumentation, observation methods and/or site location.