Continent: |
Europe | Latitude: |
57.75 | deg. |
Country: |
Russia | Longitude: |
53.47 |
deg. |
River: |
Cheptca | Elevation: |
149.0 |
m |
Station: |
Polom | Area: |
5930.0 |
km2 |
| Mean for Observation Period: | 1933 | - | 1985 | Total months: | 633 |
| - | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
| m3/c | 7.69 | 6.52 | 6.70 | 160. | 125. | 26.6 | 15.8 | 11.9 | 15.2 | 19.3 | 16.6 | 9.90 | 35.1 |
| mm | 3.47 | 2.69 | 3.03 | 69.9 | 56.3 | 11.6 | 7.15 | 5.36 | 6.66 | 8.71 | 7.27 | 4.47 | 187. |
| km3 | 0.021 | 0.016 | 0.018 | 0.41 | 0.33 | 0.069 | 0.042 | 0.032 | 0.039 | 0.052 | 0.043 | 0.027 | 1.11 |
| l/s/km2 | 1.30 | 1.10 | 1.13 | 27.0 | 21.0 | 4.49 | 2.67 | 2.00 | 2.57 | 3.25 | 2.80 | 1.67 | 5.91 |
| %% | 1.83 | 1.55 | 1.59 | 38.0 | 29.6 | 6.33 | 3.76 | 2.82 | 3.62 | 4.58 | 3.95 | 2.35 | 100. |
Cheptca at Polom
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
| 1933 | 3.74 | 4.27 | 4.58 | 154. | 66.2 | 16.1 | 5.69 | 3.42 | 5.36 | 5.92 | 6.51 | 7.03 | 23.6 |
| 1934 | 5.18 | 4.05 | 3.89 | 72.7 | 96.2 | 25.3 | 10.3 | 4.96 | 7.74 | 15.4 | 6.70 | 3.58 | 21.3 |
| 1935 | 2.59 | 2.90 | 2.89 | 99.5 | 126. | 21.3 | 15.9 | 10.6 | - | - | - | 2.20 | - |
| 1936 | 2.93 | 3.12 | 3.80 | 141. | 53.8 | 15.3 | 6.53 | 0.92 | 2.41 | 6.91 | 12.6 | 5.04 | 21.2 |
| 1937 | 3.86 | 3.17 | 3.03 | 108. | 36.4 | 31.5 | 9.91 | 3.54 | 4.34 | 6.13 | 4.29 | 2.53 | 18.1 |
| 1938 | 2.87 | 3.31 | 3.83 | 154. | 72.0 | 18.1 | 10.2 | 4.10 | 3.72 | 8.45 | 14.6 | 5.94 | 25.1 |
| 1939 | 4.53 | 4.51 | 3.22 | 234. | 129. | 19.7 | 5.74 | 1.83 | 4.12 | 10.8 | 10.9 | 4.29 | 36.1 |
| 1940 | 3.30 | 3.03 | 3.12 | 225. | 65.8 | 71.2 | 6.24 | 2.16 | 3.95 | 5.26 | 3.55 | 3.41 | 33.0 |
| 1941 | 3.14 | 3.19 | 3.60 | 6.88 | 301. | 104. | 15.4 | 6.44 | 8.59 | 23.1 | 25.0 | 6.08 | 42.2 |
| 1942 | 5.22 | 3.88 | 4.80 | 140. | 123. | 34.5 | 32.9 | 12.2 | 9.60 | 29.4 | 15.7 | 8.24 | 35.0 |
| 1943 | 6.26 | 4.39 | 4.50 | 224. | 90.7 | 43.0 | 22.0 | 21.1 | 22.1 | 14.2 | 5.04 | 4.48 | 38.5 |
| 1944 | 4.66 | 4.02 | 5.47 | 125. | 332. | 27.9 | 15.0 | 17.4 | 13.5 | 16.9 | 7.12 | 4.33 | 47.8 |
| 1945 | 4.38 | 4.82 | 5.16 | 92.2 | 115. | 45.7 | 17.8 | 6.93 | 8.20 | 13.7 | 29.3 | 10.7 | 29.5 |
| 1946 | 9.41 | 9.02 | 8.86 | 96.8 | 279. | 21.4 | 13.7 | 10.6 | 33.2 | 33.6 | 32.6 | 19.1 | 47.3 |
| 1947 | 14.2 | 10.9 | 12.7 | 29.2 | 184. | 41.7 | 13.9 | 23.4 | 10.8 | 17.6 | 16.5 | 16.4 | 32.6 |
| 1948 | 16.3 | 13.8 | 11.9 | 89.4 | 211. | 19.6 | 14.8 | 11.3 | 11.8 | 26.7 | 17.5 | 14.1 | 38.2 |
| 1949 | 10.8 | 8.12 | 6.80 | 58.2 | 185. | 22.6 | 11.4 | 10.9 | 6.55 | 11.0 | 8.81 | 6.66 | 28.9 |
| 1950 | 4.10 | 3.68 | 4.45 | 215. | 48.3 | 21.0 | 35.8 | 37.6 | 113. | 37.1 | 35.7 | 14.7 | 47.5 |
| 1951 | 7.71 | 5.97 | 5.54 | 291. | 77.3 | 29.0 | 8.95 | 6.87 | 5.42 | 7.62 | 5.36 | 5.33 | 38.0 |
| 1952 | 4.02 | 4.22 | 3.43 | 29.3 | 134. | 22.4 | 13.1 | 5.27 | 6.75 | 7.78 | 7.72 | 5.24 | 20.3 |
| 1953 | 4.45 | 4.17 | 4.99 | 181. | 51.5 | 10.2 | 5.98 | 3.63 | 6.13 | 10.4 | 5.87 | 6.57 | 24.6 |
| 1954 | 5.46 | 4.38 | 4.09 | 97.2 | 42.9 | 9.31 | 5.28 | 5.38 | 14.3 | 31.1 | 42.4 | 5.83 | 22.3 |
| 1955 | 5.13 | 4.83 | 6.17 | 243. | 171. | 26.2 | 9.07 | 6.10 | 6.70 | 9.45 | 8.97 | 7.06 | 42.0 |
| 1956 | 4.91 | 4.83 | 4.87 | 192. | 101. | 10.5 | 9.56 | 23.1 | 30.5 | 47.1 | 24.5 | 18.0 | 39.2 |
| 1957 | 15.3 | 13.0 | 11.4 | 247. | 275. | 19.6 | 28.6 | 16.6 | 8.20 | 15.1 | 15.7 | 9.46 | 56.2 |
| 1958 | 11.0 | 10.5 | 10.3 | 140. | 220. | 27.2 | 9.96 | 6.87 | 10.6 | 15.5 | 9.49 | 9.27 | 40.1 |
| 1959 | 8.46 | 7.25 | 6.00 | 216. | 90.5 | 27.5 | 18.2 | 14.3 | 22.5 | 32.1 | 24.5 | 6.97 | 39.5 |
| 1960 | 7.22 | 6.04 | 6.53 | 273. | 52.7 | 15.3 | 7.57 | 5.21 | 6.50 | 7.82 | 5.73 | 4.67 | 33.2 |
| 1961 | 6.44 | 6.45 | 7.24 | 215. | 222. | 17.8 | 4.82 | 6.94 | 10.7 | 9.04 | 7.42 | 4.73 | 43.2 |
| 1962 | 4.52 | 7.94 | 6.40 | 235. | 32.8 | 13.7 | 13.6 | 9.28 | 32.1 | 16.1 | 14.6 | 11.8 | 33.2 |
| 1963 | 9.09 | 7.82 | 6.89 | 192. | 112. | 11.1 | 5.26 | 6.87 | 7.13 | 16.8 | 29.3 | 11.5 | 34.6 |
| 1964 | 9.32 | 10.0 | 9.38 | 98.4 | 174. | 16.1 | 7.77 | 8.97 | 8.47 | 10.6 | 10.0 | 4.88 | 30.7 |
| 1965 | 6.57 | 3.35 | 6.91 | 70.8 | 286. | 46.0 | 12.7 | 28.0 | 20.1 | 23.3 | 18.9 | 8.50 | 44.3 |
| 1966 | 9.69 | 8.43 | 8.73 | 387. | 102. | 22.8 | 31.8 | 11.6 | 13.4 | 18.4 | 13.9 | 9.43 | 53.1 |
| 1967 | 4.18 | 5.26 | 5.70 | 158. | 32.4 | 13.0 | 13.9 | 7.88 | 9.80 | 16.5 | 12.3 | 9.50 | 24.0 |
| 1968 | 8.20 | 6.71 | 7.01 | 156. | 294. | 30.0 | 21.2 | 14.0 | 10.5 | 13.8 | 20.2 | 9.35 | 49.2 |
| 1969 | 7.98 | 5.22 | 4.15 | 232. | 55.5 | 33.7 | 25.7 | 14.9 | 11.5 | 14.2 | 8.91 | 11.8 | 35.5 |
| 1970 | 5.99 | 5.55 | 4.68 | 251. | 96.8 | 23.3 | 11.5 | 7.34 | 10.6 | 17.6 | 11.5 | 8.18 | 37.8 |
| 1971 | 7.39 | 8.01 | 7.37 | 158. | 127. | 36.2 | 42.8 | 12.0 | 11.1 | 16.0 | 19.6 | 23.6 | 39.1 |
| 1972 | 12.9 | 7.13 | 7.29 | 245. | 59.9 | 32.4 | 14.2 | 7.49 | 3.45 | 13.8 | 13.3 | 13.1 | 35.8 |
| 1973 | 9.52 | 7.11 | 7.92 | 188. | 23.9 | 8.31 | 6.87 | 6.74 | 19.5 | 46.4 | 31.8 | 15.5 | 31.0 |
| 1974 | 11.8 | 8.68 | 10.6 | 314. | 92.6 | 30.4 | 26.0 | 11.9 | 10.9 | 10.9 | 10.9 | 5.86 | 45.4 |
| 1975 | 5.48 | 5.28 | 6.39 | 184. | 16.3 | 6.41 | 4.16 | 3.45 | 3.17 | 4.28 | 4.28 | 3.82 | 20.6 |
| 1976 | 4.50 | 4.33 | 4.28 | 78.5 | 45.1 | 13.0 | 33.4 | 17.1 | 8.68 | 8.77 | 7.39 | 5.79 | 19.2 |
| 1977 | 5.61 | 4.72 | 4.40 | 144. | 40.4 | 12.3 | 10.5 | 6.17 | 6.59 | 9.69 | 18.3 | 10.0 | 22.7 |
| 1978 | 4.78 | 4.71 | 8.55 | 118. | 78.5 | 55.4 | 15.5 | 15.9 | 28.0 | 67.9 | 44.1 | 13.4 | 37.9 |
| 1979 | 9.43 | 9.15 | 8.99 | 19.4 | 338. | 22.6 | 17.9 | 24.2 | 13.4 | 18.7 | 13.0 | 14.0 | 42.4 |
| 1980 | 10.1 | 6.84 | 6.28 | 155. | 68.3 | 15.6 | 21.6 | 18.6 | 30.8 | 26.6 | 22.0 | 16.5 | 33.2 |
| 1981 | 14.8 | 13.5 | 12.8 | 67.2 | 241. | 20.8 | 9.60 | 9.11 | 9.22 | 11.6 | 10.8 | 7.44 | 35.7 |
| 1982 | 6.18 | 6.15 | 6.08 | 130. | 81.7 | 18.5 | 8.91 | 9.00 | 10.5 | 10.4 | 10.9 | 11.2 | 25.8 |
| 1983 | 10.5 | 7.63 | 9.60 | 194. | 33.3 | 24.9 | 24.5 | 13.5 | 25.0 | 36.2 | 22.0 | 25.7 | 35.6 |
| 1984 | 18.7 | 12.7 | 11.5 | 111. | 53.9 | 31.3 | 37.8 | 55.4 | 77.8 | 73.4 | 66.0 | 28.7 | 48.2 |
| 1985 | 22.9 | 13.7 | 16.2 | 197. | 164. | 58.0 | 37.1 | 20.3 | 13.4 | 25.6 | 20.3 | 23.1 | 51.0 |