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|
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1943 | 27.5 | 61.5 | 102.8 | 153.0 | 297.6 | 521.5 | 468.9 | 221.3 | 353.1 | 43.4 | 128.9 | 75.2 | 2454.7 |
| 1944 | 44.8 | 104.3 | 73.0 | 117.1 | 370.3 | 220.4 | 418.8 | 143.3 | 230.2 | 67.2 | 224.0 | 45.9 | 2059.3 |
| 1945 | 32.5 | 84.0 | 95.2 | 110.7 | 102.7 | 406.8 | 383.4 | 218.9 | 394.8 | 298.1 | 31.9 | 129.7 | 2288.7 |
| 1946 | 69.8 | 92.9 | 277.9 | 357.1 | 292.7 | 463.9 | 178.1 | 208.5 | 195.6 | 52.6 | 72.2 | 143.2 | 2404.5 |
| 1947 | 99.4 | 34.8 | 84.0 | 75.7 | 240.0 | 519.4 | 365.6 | 93.5 | 134.1 | 35.3 | 37.2 | 141.3 | 1860.3 |
| 1948 | 41.8 | 122.2 | 126.2 | 118.5 | 201.7 | 288.1 | 778.9 | 329.6 | 173.5 | 32.1 | 30.8 | 195.5 | 2438.9 |
| 1949 | 79.4 | 102.5 | 180.7 | 153.2 | 400.7 | 710.9 | 623.0 | 606.3 | 72.8 | 266.6 | 112.8 | 94.8 | 3403.7 |
| 1950 | 128.3 | 136.0 | 185.9 | 135.1 | 187.7 | 304.4 | 484.6 | 260.6 | 434.3 | 96.1 | 149.5 | 97.1 | 2599.6 |
| 1951 | 51.9 | 182.4 | 116.2 | 274.7 | 143.2 | 347.5 | 699.1 | 140.3 | 173.6 | 193.1 | 127.4 | 123.3 | 2572.7 |
| 1952 | 75.6 | 131.2 | 134.0 | 270.7 | 344.4 | 564.9 | 391.7 | 113.7 | 179.3 | 71.8 | 121.5 | 70.2 | 2469.0 |
| 1953 | 77.1 | 117.6 | 149.5 | 128.8 | 385.1 | 813.3 | 385.8 | 58.7 | 145.0 | 68.3 | 62.0 | 79.4 | 2470.6 |
| 1954 | 132.2 | 89.5 | 57.2 | 260.9 | 337.2 | 839.5 | 930.6 | 289.3 | 403.0 | 74.7 | 52.0 | 19.8 | 3485.9 |
| 1955 | 71.6 | 114.8 | 237.1 | 438.1 | 229.3 | 563.8 | 351.8 | 179.2 | 168.5 | 41.4 | 54.3 | 38.5 | 2488.4 |
| 1956 | 76.6 | 84.4 | 227.8 | 144.4 | 301.2 | 487.0 | 321.8 | 227.8 | 438.8 | 112.6 | 21.0 | 17.9 | 2461.3 |
| 1957 | 72.8 | 97.4 | 40.5 | 439.5 | 185.0 | 331.4 | 824.8 | 302.3 | 333.6 | 109.2 | 77.6 | 102.9 | 2917.0 |
| 1958 | 95.8 | 92.8 | 117.3 | 462.7 | 212.2 | 280.7 | 46.9 | 271.6 | 71.3 | 272.8 | 43.2 | 130.4 | 2097.7 |
| 1959 | 92.4 | 259.0 | 145.2 | 219.6 | 142.6 | 243.7 | 713.0 | 164.8 | 153.4 | 91.1 | 111.8 | 75.9 | 2412.5 |
| 1960 | 54.7 | 36.7 | 95.5 | 225.7 | 256.9 | 327.4 | 116.5 | 151.3 | 221.2 | 87.0 | 119.3 | 34.3 | 1726.5 |
| 1961 | 108.8 | 72.1 | 115.4 | 233.5 | 267.3 | 201.2 | 214.9 | 435.3 | 125.8 | 136.7 | 114.4 | 44.4 | 2069.8 |
| 1962 | 32.8 | 88.0 | 98.8 | 208.7 | 272.1 | 480.2 | 711.6 | 503.7 | 178.7 | 134.7 | 153.5 | 68.4 | 2931.2 |
| 1963 | 102.0 | 53.6 | 126.1 | 167.5 | 458.2 | 248.7 | 263.6 | 497.6 | 76.9 | 42.8 | 84.6 | 67.6 | 2189.2 |
| 1964 | 171.1 | 75.0 | 85.7 | 219.8 | 147.9 | 584.9 | 128.3 | 303.7 | 137.5 | 98.7 | 72.5 | 39.7 | 2064.8 |
| 1965 | 56.1 | 56.2 | 39.2 | 229.0 | 261.8 | 461.3 | 500.4 | 220.4 | 173.5 | 75.7 | 145.2 | 82.0 | 2300.8 |
| 1966 | 86.9 | 88.7 | 227.5 | 258.6 | 225.3 | 381.3 | 442.5 | 187.1 | 260.0 | 80.9 | 169.7 | 68.0 | 2476.5 |
| 1967 | 57.2 | 32.2 | 242.9 | 291.9 | 144.8 | 206.0 | 231.2 | 72.8 | 17.5 | 89.9 | 129.7 | 27.9 | 1544.0 |
| 1968 | 82.0 | 66.0 | 86.0 | 96.0 | 104.0 | 358.5 | 561.0 | 160.5 | 168.5 | 67.5 | 37.0 | 143.5 | 1930.5 |
| 1969 | 149.0 | 94.0 | 138.0 | 143.0 | 159.0 | 561.5 | 616.5 | 107.0 | 12.0 | 52.5 | 61.0 | 71.5 | 2165.0 |
| 1970 | 34.5 | 87.5 | 102.0 | 242.0 | 298.0 | 581.0 | 326.0 | 316.5 | 291.0 | 58.0 | 49.5 | 79.5 | 2465.5 |
| 1971 | 52.5 | 85.0 | 118.0 | 66.5 | 292.5 | 677.0 | 540.5 | 443.5 | 206.0 | 151.0 | 24.5 | 66.0 | 2723.0 |
| 1972 | 152.0 | 138.0 | 125.5 | 255.5 | 323.5 | 969.0 | 852.0 | 231.5 | 126.0 | 129.0 | 168.0 | 64.0 | 3534.0 |
| 1973 | 99.5 | 126.5 | 67.5 | 521.0 | 281.0 | 254.5 | 282.0 | 132.0 | 298.0 | 114.5 | 20.5 | 28.0 | 2225.0 |
| 1974 | 38.5 | 48.5 | 110.5 | 174.5 | 142.5 | 304.0 | 286.0 | 63.0 | 165.0 | 188.5 | 65.0 | 150.0 | 1736.0 |
| 1975 | 83.5 | 150.0 | 95.5 | 336.0 | 110.5 | 781.0 | 208.5 | 208.5 | 170.0 | 214.5 | 74.5 | 95.0 | 2527.5 |
| 1976 | 42.5 | 164.5 | 146.5 | 259.0 | 288.0 | 518.0 | 313.0 | 67.5 | 324.0 | 108.0 | 44.5 | 97.0 | 2372.5 |
| 1977 | 31.0 | 87.5 | 170.5 | 239.5 | 264.5 | 564.5 | 76.0 | 140.5 | 115.5 | 14.5 | 104.0 | 75.5 | 1883.5 |
| 1978 | 91.5 | 74.0 | 63.0 | 194.0 | 119.5 | 423.0 | 147.0 | 199.0 | 114.0 | 62.0 | 64.0 | 62.5 | 1613.5 |
| 1979 | 111.5 | 106.5 | 220.5 | 124.0 | 136.5 | 907.5 | 497.5 | 187.5 | 150.5 | 158.0 | 147.0 | 102.5 | 2849.5 |
| 1980 | 99.5 | 43.0 | 241.0 | 169.5 | 412.5 | 432.5 | 772.0 | 333.5 | 288.0 | 189.0 | 23.5 | 93.5 | 3097.5 |
| 1981 | 40.0 | 102.0 | 187.5 | 240.5 | 270.0 | 157.5 | 274.5 | 139.5 | 83.0 | 89.5 | 207.0 | 15.5 | 1806.5 |
| 1982 | 37.5 | 154.0 | 161.0 | 140.5 | 226.5 | 160.0 | 1132.0 | 113.5 | 106.5 | 49.5 | 175.0 | 28.0 | 2484.0 |
| 1983 | 59.0 | 91.0 | 246.0 | 383.5 | 293.0 | 463.5 | 580.0 | 156.0 | 339.5 | 74.5 | 16.5 | 23.5 | 2726.0 |
| 1984 | 57.0 | 34.0 | 121.0 | 156.5 | 200.5 | 542.5 | 137.0 | 359.0 | 132.0 | 30.5 | 59.5 | 35.5 | 1865.0 |
| 1985 | 27.5 | 180.0 | 235.5 | 151.0 | 294.5 | 576.5 | 516.5 | 138.0 | 238.0 | 92.0 | 78.0 | 80.0 | 2607.5 |
| 1986 | 48.5 | 49.5 | 156.0 | 165.0 | 161.5 | 407.5 | 343.0 | 145.0 | 234.0 | 69.5 | 25.0 | 103.5 | 1908.0 |
| 1987 | 73.0 | 108.5 | 270.0 | 174.0 | 365.5 | 140.5 | 588.0 | 205.5 | 221.0 | 215.5 | 95.0 | 18.5 | 2475.0 |
| 1988 | 31.5 | 80.0 | 165.5 | 155.5 | 226.5 | 531.0 | 299.5 | 123.0 | 156.5 | 14.5 | 42.0 | 14.5 | 1840.0 |
| 1989 | 203.0 | 195.5 | 123.0 | 76.5 | 303.0 | 262.0 | 622.5 | 162.5 | 419.0 | 22.0 | 22.0 | 23.5 | 2434.5 |
| 1990 | 109.0 | 139.0 | 196.0 | 163.0 | 268.5 | 454.5 | 279.5 | 138.5 | 272.0 | 122.0 | 64.5 | 58.0 | 2264.5 |
| 1991 | 51.5 | 108.5 | 252.0 | 225.0 | 305.0 | 676.5 | 447.5 | 152.5 | 301.5 | 103.5 | 62.0 | 65.0 | 2750.5 |
| 1992 | 56.0 | 51.5 | 423.5 | 173.5 | 119.0 | 380.0 | 212.5 | 307.0 | 67.5 | 23.5 | 42.5 | 89.0 | 1945.5 |
| 1993 | 57.5 | 89.0 | 157.5 | 137.0 | 178.5 | 896.0 | 1022.5 | 778.0 | 561.0 | 64.5 | 80.0 | 99.5 | 4121.0 |
| 1994 | 75.0 | 94.0 | 51.0 | 308.0 | 77.5 | 462.0 | 55.5 | 56.5 | 16.0 | 23.0 ) | 12.5 | 107.5 | 1338.5 |
| 1995 | 51.5 | 70.5 | 119.5 | 305.0 | 268.0 | 477.0 | 803.0 | 105.5 | 257.0 | 128.0 | 77.5 | 7.5 | 2670.0 |
| 1996 | 87.0 | 52.0 | 227.0 | 156.0 | 85.5 | 625.5 | 683.0 | 268.5 | 45.0 | 31.5 | 81.0 | 67.0 | 2409.0 |
| 1997 | 66.5 | 56.5 | 162.5 | 223.5 | 228.5 | 362.5 | 836.0 | 283.0 | 354.0 | 3.5 | 180.0 | 123.0 | 2879.5 |
| 1998 | 169.0 | 87.5 | 138.5 | 360.0 | 280.0 | 868.5 | 232.0 | 26.5 | 139.5 | 255.0 | 63.0 | 13.5 | 2633.0 |
| 1999 | 25.5 | 81.5 | 210.0 | 93.5 | 239.5 | 618.0 | 321.0 | 253.5 | 280.5 | 97.5 | 83.5 | 20.0 | 2324.0 |
| 2000 | 61.5 | 51.5 | 132.0 | 113.5 | 161.5 | 574.5 | 295.0 | 302.5 | 155.5 | 135.0 | 125.0 | 51.5 | 2159.0 |
| 2001 | 126.0 | 117.0 | 100.0 | 88.0 | 62.5 | 664.5 | 318.5 | 114.5 | 264.0 | 131.5 | 81.5 | 78.0 | 2146.0 |
| 2002 | 78.5 | 63.5 | 118.5 | 209.0 | 214.0 | 434.5 | 307.0 | 198.5 | 59.0 | 81.5 | 112.5 | 192.0 | 2068.5 |
| 2003 | 88.5 | 87.5 | 199.5 | 211.5 | 172.0 | 639.0 | 310.0 | 435.5 | 32.5 | 59.5 | 215.5 | 42.0 | 2493.0 |
| 2004 | 50.5 | 61.5 | 140.0 | 147.0 | 398.0 | 136.0 | 125.0 | 376.5 | 447.0 | 301.0 | 104.0 | 153.5 | 2440.0 |
| 2005 | 67.0 | 173.5 | 145.0 | 107.5 | 304.5 | 171.0 | 610.5 | 119.0 | 304.5 | 101.0 | 65.0 | 55.0 | 2223.5 |
| 2006 | 91.5 | 131.0 | 138.0 | 216.5 | 309.5 | 360.0 | 1182.0 | 168.0 ) | 149.0 | 16.0 | 115.0 | 129.5 | 3006.0 |
| 2007 | 46.5 | 111.5 | 138.0 | 152.5 | 178.5 | 269.0 | 431.5 | 252.0 | 136.5 | 69.0 | 68.0 | 79.0 | 1932.0 |
| 2008 | 143.0 | 56.0 | 101.0 | 156.0 | 312.0 | 843.0 | 127.5 | 214.5 | 471.5 | 138.5 | 102.5 | 44.5 | 2710.0 |
| 2009 | 70.5 | 211.5 | 189.0 | 104.0 | 92.5 | 301.0 | 480.5 | 77.5 | 62.0 | 133.5 | 142.5 | 77.5 | 1942.0 |
| 2010 | 60.0 | 196.0 | 289.5 | 305.0 | 325.0 | 798.5 | 569.5 | 153.5 | 94.0 | 125.0 | 31.5 | 150.0 | 3097.5 |
| 2011 | 5.0 | 88.0 | 47.0 | 56.5 | 251.0 | 1042.5 ) | 271.5 | 340.5 | 260.0 | 112.0 | 106.0 | 54.5 | 2634.5 |
| 2012 | 37.0 | 208.0 | 211.5 | 149.0 | 65.5 ) | 911.0 | 581.0 ) | 189.0 | 218.0 | 45.0 | 121.0 | 138.0 | 2874.0 |
| 2013 | 64.0 | 176.0 | 92.0 | 105.0 | 60.0 | 396.0 | 149.5 | 342.0 ) | 355.0 | 203.5 | 76.5 ) | 84.5 | 2104.0 |
| 2014 | 72.0 | 153.5 | 179.0 | 103.5 | 210.5 | 460.0 | 470.5 | 232.5 | 310.0 | 76.0 ) | 107.0 | 74.0 | 2448.5 |
| 2015 | 88.0 | 83.5 | 140.0 | 159.0 | 127.5 ) | 894.0 | 410.5 | 367.0 | 127.0 | 52.0 | 201.0 | 165.5 | 2815.0 |
| 2016 | 169.5 | 131.0 | 120.0 | 278.0 | 378.0 | 630.0 | 626.0 | 84.0 | 320.5 | 249.0 | 98.0 | 78.0 | 3162.0 |
| 2017 | 61.5 | 95.5 | 133.5 | 280.5 | 243.0 | 429.5 | 346.5 | 140.5 | 277.0 | 245.5 | 90.5 | 17.5 | 2361.0 |
| 2018 | 104.5 | 103.0 | 180.0 | 198.0 | 359.0 | 500.5 | 567.0 | 125.5 | 377.5 | 89.5 | 97.5 | 110.5 | 2812.5 |
| 2019 | 39.0 | 126.0 | 161.0 | 126.5 | 51.5 | 460.5 | 834.5 | 264.5 | 66.0 | 92.5 | 47.5 | 107.0 | 2376.5 |
| 2020 | 99.0 | 154.0 | 126.0 | 86.0 | 411.0 | 546.0 | 1102.5 | 61.0 | 369.5 | 76.5 | 116.0 | 23.5 | 3171.0 |
| 2021 | 30.5 | 67.0 | 127.5 | 103.0 | 689.0 | 158.5 | 282.5 | 883.0 | 160.5 | 32.0 | 124.0 | 48.5 | 2706.0 |
| 2022 | 52.0 | 30.0 | 207.0 | 314.5 | 155.5 | 469.5 | 603.0 | 125.5 ) | 425.0 | 61.5 | 78.0 | 47.5 | 2569.0 |
| 2023 | 74.0 | 152.0 | 112.0 | 281.0 | 227.0 | 479.5 | 293.5 | 211.5 | 52.0 | 90.0 | 66.5 | 91.0 | 2130.0 |
| 2024 | 18.0 | 220.5 | 288.5 | 260.0 | 108.5 ] | 895.5 ] |
Remarks
The red lines, if any, indicate data inhomogeneity caused by changes in instrumentation, observation methods and/or site location.