Continent: |
Europe | Latitude: |
64.25 | deg. |
Country: |
Russia | Longitude: |
35.43 |
deg. |
River: |
Suma | Elevation: |
3.6 |
m |
Station: |
Sumskiy Posad | Area: |
1990.0 |
km2 |
| Mean for Observation Period: | 1926 | - | 1988 | Total months: | 679 |
| - | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
| m3/c | 12.5 | 10.3 | 8.72 | 10.2 | 35.4 | 41.1 | 25.9 | 19.1 | 18.8 | 20.8 | 20.8 | 16.5 | 20.0 |
| mm | 16.8 | 12.7 | 11.7 | 13.3 | 47.7 | 53.5 | 34.8 | 25.7 | 24.4 | 27.9 | 27.0 | 22.2 | 317. |
| km3 | 0.033 | 0.025 | 0.023 | 0.026 | 0.095 | 0.11 | 0.069 | 0.051 | 0.049 | 0.056 | 0.054 | 0.044 | 0.63 |
| l/s/km2 | 6.28 | 5.19 | 4.38 | 5.13 | 17.8 | 20.7 | 13.0 | 9.59 | 9.43 | 10.4 | 10.4 | 8.28 | 10.0 |
| %% | 5.20 | 4.30 | 3.63 | 4.25 | 14.8 | 17.1 | 10.8 | 7.95 | 7.82 | 8.65 | 8.65 | 6.87 | 100. |
Suma at Sumskiy Posad
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
| 1926 | 8.90 | 8.30 | 8.30 | 12.1 | 39.0 | 44.0 | 25.2 | 15.7 | 15.6 | 16.7 | 18.3 | 10.3 | 18.5 |
| 1927 | 12.4 | 9.20 | 7.70 | 10.4 | 41.3 | 60.2 | 26.3 | 14.8 | 12.3 | 14.0 | 13.0 | 10.4 | 19.3 |
| 1928 | 14.5 | 12.2 | 9.80 | 6.50 | 38.3 | 31.0 | 19.5 | 20.8 | 19.3 | 23.1 | 20.7 | 19.0 | 19.6 |
| 1929 | 21.4 | 18.5 | 16.4 | 14.4 | 43.2 | 55.3 | 47.9 | 26.4 | 31.1 | 31.5 | 33.4 | 21.6 | 30.1 |
| 1930 | 17.6 | 17.0 | 15.0 | 13.4 | 30.8 | 44.3 | 19.6 | 15.8 | 22.1 | 33.4 | 29.7 | 16.5 | 22.9 |
| 1931 | - | - | - | 17.1 | 59.0 | 47.7 | 30.6 | 17.2 | 18.0 | 20.2 | 24.7 | 18.4 | - |
| 1932 | 15.4 | 14.8 | 14.6 | 12.9 | 32.3 | 31.7 | 21.3 | 13.3 | 12.0 | 16.6 | 20.1 | 13.0 | 18.2 |
| 1933 | 11.6 | 10.8 | 9.10 | 9.00 | 26.9 | 34.2 | 24.5 | 14.9 | 12.3 | 13.2 | 12.6 | 10.8 | 15.8 |
| 1934 | 10.3 | 10.2 | 8.90 | 10.0 | 61.9 | 51.1 | 23.7 | 13.2 | 8.10 | 11.0 | 16.5 | 13.3 | 19.9 |
| 1935 | 10.5 | 10.0 | 8.20 | 9.00 | 26.7 | 69.3 | 40.0 | 36.3 | 47.8 | 63.1 | 36.2 | 16.0 | 31.1 |
| 1936 | 11.0 | 9.90 | 9.00 | 9.00 | 39.9 | 42.1 | 25.1 | 14.7 | 9.70 | 14.4 | 21.4 | 9.00 | 17.9 |
| 1937 | 7.30 | 7.30 | 7.20 | 21.3 | 63.3 | 38.1 | 18.0 | 17.3 | 18.8 | 9.20 | 11.2 | 8.80 | 19.0 |
| 1938 | 7.40 | 5.70 | 5.80 | 9.30 | 53.5 | 53.1 | 33.4 | 14.9 | 8.10 | 6.20 | 6.40 | 7.20 | 17.6 |
| 1939 | 6.50 | 6.50 | 5.10 | 5.20 | 14.5 | 34.2 | 22.6 | 12.9 | 8.60 | 11.0 | 13.7 | 9.60 | 12.5 |
| 1940 | 7.70 | 7.20 | 6.70 | 5.10 | 19.2 | 33.3 | 22.9 | 17.8 | 16.5 | 16.5 | 9.90 | 10.1 | 14.4 |
| 1941 | 8.60 | 8.30 | 6.50 | 5.40 | 12.5 | 64.5 | 39.5 | 17.0 | 23.0 | 21.8 | 13.4 | 7.20 | 19.0 |
| 1942 | 8.00 | 8.10 | 6.80 | 8.90 | 24.2 | 35.2 | 19.9 | 36.5 | 21.1 | 15.0 | 19.4 | 18.9 | 18.5 |
| 1943 | 14.3 | 11.7 | 13.3 | 17.0 | 47.9 | 40.3 | 16.3 | 11.9 | 11.1 | 12.0 | 13.1 | 13.1 | 18.5 |
| 1944 | 7.80 | 7.20 | 7.10 | 5.80 | 29.4 | 47.3 | 26.7 | 16.8 | 20.7 | 22.0 | - | - | - |
| 1945 | 6.40 | 6.50 | 5.20 | 3.70 | 20.4 | 55.2 | 34.1 | 14.9 | 13.2 | 13.8 | 13.9 | 10.3 | 16.5 |
| 1946 | 7.80 | 6.40 | 5.80 | 4.70 | 39.5 | 39.9 | 18.4 | 15.9 | 12.8 | 12.0 | 14.4 | 15.5 | 16.1 |
| 1947 | 12.3 | 10.5 | 10.5 | 9.00 | 40.7 | 37.1 | 18.2 | 11.7 | 7.40 | 6.30 | 7.00 | 5.40 | 14.7 |
| 1948 | 5.70 | 5.40 | 4.80 | 11.3 | 35.3 | 26.0 | 12.4 | 9.90 | 12.4 | 18.3 | 21.3 | 14.8 | 14.8 |
| 1949 | 12.1 | 12.0 | 10.4 | 15.5 | 50.6 | 29.1 | 26.3 | 19.1 | 18.8 | 21.5 | 22.8 | 14.0 | 21.0 |
| 1950 | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 1951 | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 1952 | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 1953 | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 1954 | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 1955 | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 1956 | 13.2 | 12.2 | 10.9 | 8.30 | 15.1 | 18.3 | 16.5 | 23.8 | 26.7 | 28.7 | 23.3 | 17.5 | 17.9 |
| 1957 | 14.1 | 13.8 | 11.1 | 10.7 | 72.2 | 66.2 | 32.9 | 20.8 | 20.7 | 40.4 | 42.2 | 30.9 | 31.3 |
| 1958 | 20.0 | 14.7 | 11.3 | 8.60 | 35.1 | 65.7 | 31.9 | 14.9 | 7.40 | 7.80 | 12.7 | 13.6 | 20.3 |
| 1959 | 8.50 | 6.30 | 5.90 | 7.90 | 29.3 | 23.6 | 14.2 | 7.50 | 6.30 | 12.8 | 14.0 | 7.00 | 11.9 |
| 1960 | 8.00 | 6.40 | 5.60 | 8.40 | 20.2 | 32.3 | 27.6 | 11.7 | 8.90 | 4.70 | 6.10 | 11.2 | 12.6 |
| 1961 | 10.3 | 9.60 | 9.20 | 9.20 | 46.3 | 64.7 | 32.6 | 27.4 | 39.2 | 29.8 | 31.4 | 23.0 | 27.7 |
| 1962 | 17.2 | 13.4 | 9.50 | 29.9 | 78.0 | 55.9 | 54.6 | 35.6 | 28.6 | 36.9 | 44.3 | 30.9 | 36.2 |
| 1963 | 25.3 | 17.6 | 11.6 | 13.1 | 35.4 | 29.4 | 17.7 | 12.3 | 8.70 | 8.20 | 5.50 | 3.80 | 15.7 |
| 1964 | 4.70 | 4.50 | 4.10 | 9.60 | 50.8 | 38.5 | 25.8 | 16.3 | 12.5 | 9.40 | 8.30 | 13.6 | 16.5 |
| 1965 | 9.30 | 6.40 | 6.40 | 5.50 | 19.0 | 29.9 | 25.5 | 24.7 | 23.7 | 33.8 | 28.6 | 20.5 | 19.4 |
| 1966 | 10.8 | 7.20 | 6.50 | 8.80 | 41.4 | 53.1 | 40.2 | 29.9 | 26.1 | 31.6 | 27.0 | 21.6 | 25.3 |
| 1967 | 10.9 | 8.40 | 5.50 | 7.40 | 45.7 | 33.1 | 22.8 | 16.7 | 15.2 | 11.8 | 14.9 | 13.4 | 17.1 |
| 1968 | 10.1 | 7.70 | 6.20 | 5.80 | 38.1 | 48.5 | 34.8 | 28.3 | 24.9 | 26.5 | 22.3 | 18.2 | 22.6 |
| 1969 | 13.0 | 8.60 | 6.40 | 8.70 | 17.1 | 29.5 | 21.7 | 18.4 | 20.3 | 31.0 | 27.1 | 24.4 | 18.8 |
| 1970 | 16.6 | 14.0 | 9.50 | 7.60 | 30.5 | 34.3 | 22.2 | 18.0 | 16.6 | 25.4 | 25.5 | 17.7 | 19.8 |
| 1971 | 15.1 | 13.2 | 10.9 | 10.8 | 29.7 | 40.5 | 27.4 | 23.7 | 23.1 | 24.4 | 24.0 | 24.0 | 22.2 |
| 1972 | 17.0 | 11.7 | 8.80 | 8.70 | 14.2 | 30.4 | 23.0 | 18.0 | 18.8 | 18.2 | 20.3 | 25.5 | 17.9 |
| 1973 | 23.3 | 18.9 | 13.7 | 10.8 | 29.3 | 32.1 | 18.7 | 13.3 | 10.8 | 9.40 | 7.20 | 7.30 | 16.2 |
| 1974 | 6.90 | 6.60 | 6.70 | 7.30 | 22.8 | 52.3 | 34.8 | 21.9 | 17.7 | 15.5 | 13.2 | 11.2 | 18.1 |
| 1975 | 11.8 | 12.8 | 10.5 | 11.1 | 35.7 | 29.7 | 19.0 | 13.2 | 14.0 | 18.6 | 14.1 | 14.5 | 17.1 |
| 1976 | 13.3 | 10.1 | 8.40 | 9.20 | 10.4 | 32.4 | 41.6 | 34.6 | 38.8 | 33.1 | 26.3 | 17.9 | 23.0 |
| 1977 | 14.1 | 10.8 | 9.50 | 8.10 | 16.0 | 22.7 | 17.9 | 16.7 | 27.8 | 41.8 | 55.0 | 35.8 | 23.0 |
| 1978 | 14.4 | 11.3 | 9.30 | 10.4 | 13.0 | 25.8 | 22.3 | 20.7 | 29.6 | 32.3 | 38.0 | 30.3 | 21.5 |
| 1979 | 22.7 | 15.9 | 11.9 | 7.90 | 49.4 | 38.7 | 28.4 | 22.3 | 19.0 | 20.4 | 18.9 | 22.3 | 23.2 |
| 1980 | 18.0 | 14.5 | 11.5 | 11.7 | 21.2 | 26.6 | 23.4 | 15.5 | 11.7 | 11.6 | 6.40 | 7.30 | 15.0 |
| 1981 | 7.20 | 7.00 | 7.10 | 6.40 | 32.3 | 78.2 | 43.3 | 28.3 | 40.2 | 37.9 | 37.1 | 29.1 | 29.5 |
| 1982 | 18.8 | 13.5 | 10.7 | 15.5 | 46.8 | 42.2 | 26.2 | 17.2 | 15.3 | 13.1 | 15.6 | 24.9 | 21.6 |
| 1983 | 21.0 | 14.6 | 11.8 | 22.5 | 46.5 | 39.7 | 18.2 | 11.2 | 7.30 | 32.6 | 44.2 | 38.2 | 25.7 |
| 1984 | 23.9 | 16.6 | 12.6 | 16.8 | 57.4 | 34.2 | 19.1 | 22.4 | 25.8 | 26.7 | 30.0 | 19.6 | 25.4 |
| 1985 | 12.6 | 10.0 | 7.00 | 6.80 | 20.6 | 39.7 | 20.9 | 13.0 | 6.00 | 8.00 | 14.0 | 9.20 | 14.0 |
| 1986 | 9.10 | 6.60 | 6.20 | 6.20 | 28.0 | 27.0 | 13.6 | 5.90 | 12.0 | 18.7 | 22.3 | 17.3 | 14.4 |
| 1987 | 3.40 | 2.20 | 3.10 | 6.40 | 24.6 | 27.4 | 22.1 | 47.7 | 48.8 | 23.9 | 13.3 | 11.2 | 19.5 |
| 1988 | 9.20 | 7.50 | 6.90 | 9.40 | 56.7 | 55.9 | 22.5 | 15.8 | 16.4 | 15.4 | 15.8 | 16.8 | 20.7 |