Continent: |
Europe | Latitude: |
55.20 | deg. |
Country: |
Russia | Longitude: |
58.57 |
deg. |
River: |
Ay | Elevation: |
238.1 |
m |
Station: |
Lakly | Area: |
6440.0 |
km2 |
| Mean for Observation Period: | 1932 | - | 1985 | Total months: | 624 |
| - | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
| m3/c | 11.1 | 10.4 | 13.4 | 157. | 122. | 54.7 | 45.2 | 38.7 | 30.8 | 36.4 | 23.5 | 13.8 | 46.5 |
| mm | 4.62 | 3.94 | 5.57 | 63.1 | 50.9 | 22.0 | 18.8 | 16.1 | 12.4 | 15.1 | 9.48 | 5.75 | 228. |
| km3 | 0.030 | 0.025 | 0.036 | 0.41 | 0.33 | 0.14 | 0.12 | 0.10 | 0.080 | 0.097 | 0.061 | 0.037 | 1.47 |
| l/s/km2 | 1.73 | 1.62 | 2.08 | 24.3 | 19.0 | 8.49 | 7.02 | 6.02 | 4.78 | 5.65 | 3.66 | 2.15 | 7.21 |
| %% | 1.99 | 1.87 | 2.40 | 28.1 | 22.0 | 9.81 | 8.11 | 6.95 | 5.52 | 6.53 | 4.22 | 2.48 | 100. |
Ay at Lakly
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
| 1932 | - | - | - | - | - | 47.0 | 33.0 | 22.8 | 22.8 | 38.6 | - | - | - |
| 1933 | 10.9 | 11.3 | - | - | 126. | 38.7 | 25.2 | 25.0 | 15.0 | 13.6 | 12.0 | 6.64 | - |
| 1934 | 9.09 | 10.9 | 12.9 | 94.2 | - | - | - | - | - | - | - | - | - |
| 1935 | - | - | - | - | - | - | 46.7 | 21.8 | 23.9 | 24.2 | 20.3 | - | - |
| 1936 | 4.50 | 5.78 | 6.93 | 138. | 74.9 | 20.8 | 11.7 | 8.11 | 8.60 | 8.45 | 10.2 | 6.63 | 25.4 |
| 1937 | 2.63 | 3.36 | 5.01 | 67.6 | 120. | 66.5 | 65.4 | 20.8 | 11.8 | 10.8 | 8.99 | 6.99 | 32.5 |
| 1938 | 7.31 | 7.07 | 8.34 | 195. | 78.3 | 45.6 | 97.9 | 32.5 | 12.0 | 15.2 | 29.5 | 8.63 | 44.8 |
| 1939 | 7.86 | 7.06 | 8.88 | 89.8 | 87.6 | 44.5 | 19.1 | 10.1 | 18.0 | 17.2 | 10.7 | 6.04 | 27.2 |
| 1940 | 5.40 | 6.98 | 9.51 | 94.0 | 58.0 | 38.9 | 27.1 | 16.7 | 8.70 | 9.74 | 8.36 | 6.33 | 24.1 |
| 1941 | 6.41 | 6.48 | 8.97 | 59.2 | 499. | 95.7 | 32.4 | 65.5 | 16.6 | 26.7 | 24.0 | 10.5 | 71.0 |
| 1942 | 8.74 | 9.27 | 8.51 | 80.4 | 102. | 14.6 | 27.2 | 25.1 | 90.3 | 129. | 39.3 | 15.1 | 45.8 |
| 1943 | 11.8 | 12.0 | 9.75 | 268. | 78.9 | 45.8 | 101. | 235. | 86.8 | 63.7 | 25.6 | 14.7 | 79.4 |
| 1944 | 8.84 | 8.57 | 13.9 | 182. | 97.5 | 33.1 | 20.8 | 29.3 | 18.7 | 14.5 | 10.0 | 6.36 | 37.0 |
| 1945 | 9.51 | 10.0 | 10.7 | 85.7 | 249. | 107. | 157. | 32.6 | 67.7 | 43.3 | 29.4 | 16.0 | 68.2 |
| 1946 | 10.3 | 8.17 | 8.48 | 198. | 170. | 32.5 | 52.5 | 70.1 | 54.1 | 86.8 | 47.4 | 21.6 | 63.3 |
| 1947 | 9.81 | 9.06 | 15.4 | 238. | 128. | 113. | 110. | 62.1 | 36.7 | 33.8 | 28.6 | 19.6 | 67.0 |
| 1948 | 9.46 | 7.52 | 8.94 | 122. | 275. | 33.9 | 34.4 | 53.3 | 25.4 | 46.4 | 23.5 | 14.1 | 54.5 |
| 1949 | 9.97 | 10.6 | 9.83 | 129. | 149. | 24.8 | 13.0 | 8.11 | 7.25 | 14.3 | 7.99 | 5.10 | 32.4 |
| 1950 | 7.56 | 9.11 | 12.2 | 117. | 65.7 | 29.7 | 40.9 | 62.9 | 111. | 53.2 | 17.2 | 16.1 | 45.2 |
| 1951 | 11.6 | 11.1 | 17.0 | 234. | 79.9 | 40.3 | 13.5 | 17.6 | 17.5 | 23.5 | 16.2 | 13.7 | 41.3 |
| 1952 | 13.6 | 10.6 | 13.1 | 70.2 | 194. | 295. | 20.3 | 11.5 | 9.00 | 10.6 | 9.83 | 7.16 | 55.4 |
| 1953 | 8.09 | 7.06 | 10.2 | 122. | 113. | 27.2 | 12.3 | 8.30 | 8.66 | 30.9 | 11.5 | 9.79 | 30.8 |
| 1954 | 8.85 | 7.46 | 8.29 | 177. | 134. | 47.8 | 15.8 | 11.6 | 11.3 | 13.4 | 31.8 | 9.20 | 39.7 |
| 1955 | 9.09 | 8.00 | 16.7 | 59.6 | 65.1 | 14.7 | 25.6 | 54.5 | 26.0 | 16.2 | 12.5 | 10.4 | 26.5 |
| 1956 | 8.79 | 8.75 | 9.89 | 215. | 56.9 | 36.6 | 19.0 | 20.4 | 41.0 | 86.7 | 45.8 | 22.1 | 47.6 |
| 1957 | 13.6 | 14.1 | 13.2 | 275. | 107. | 22.1 | 21.1 | 47.3 | 15.3 | 26.0 | 28.2 | 12.6 | 49.6 |
| 1958 | 13.6 | 12.5 | 12.1 | 108. | 90.5 | 24.8 | 8.71 | 6.52 | 16.4 | 29.0 | 18.3 | 8.63 | 29.1 |
| 1959 | 7.67 | 7.26 | 8.06 | 232. | 61.2 | 37.2 | 40.9 | 50.6 | 88.2 | 127. | 43.6 | 21.1 | 60.4 |
| 1960 | 18.1 | 14.6 | 15.0 | 197. | 157. | 78.0 | 64.2 | 45.2 | 22.0 | 26.5 | 24.3 | 18.0 | 56.7 |
| 1961 | 15.4 | 13.9 | 41.2 | 188. | 109. | 60.4 | 73.0 | 24.1 | 36.8 | 44.4 | 29.3 | 16.2 | 54.3 |
| 1962 | 15.4 | 12.5 | 31.4 | 144. | 120. | 37.8 | 22.0 | 26.8 | 36.0 | 32.2 | 26.4 | 18.2 | 43.6 |
| 1963 | 17.1 | 14.8 | 13.7 | 238. | 108. | 20.8 | 14.5 | 34.3 | 30.6 | 35.3 | 40.3 | 22.2 | 49.1 |
| 1964 | 16.4 | 13.4 | 14.0 | 125. | 191. | 147. | 138. | 147. | 64.0 | 54.5 | 37.8 | 27.0 | 81.3 |
| 1965 | 23.0 | 19.8 | 22.6 | 155. | 176. | 27.6 | 20.4 | 21.6 | 21.1 | 26.0 | 22.2 | 15.6 | 45.9 |
| 1966 | 9.36 | 11.3 | 14.6 | 234. | 89.5 | 58.9 | 39.6 | 18.0 | 16.2 | 18.8 | 18.6 | 7.20 | 44.7 |
| 1967 | 6.23 | 7.85 | 11.8 | 91.7 | 60.2 | 83.2 | 102. | 23.1 | 36.4 | 35.0 | 19.9 | 14.1 | 41.0 |
| 1968 | 11.5 | 12.3 | 16.4 | 152. | 156. | 69.2 | 68.1 | 19.2 | 20.4 | 18.1 | 14.6 | 11.5 | 47.4 |
| 1969 | 11.1 | 7.57 | 9.80 | 201. | 151. | 121. | 139. | 59.7 | 23.7 | 21.8 | 22.5 | 14.7 | 65.2 |
| 1970 | 12.9 | 12.9 | 13.8 | 242. | 169. | 41.2 | 55.5 | 47.6 | 31.0 | 29.0 | 21.2 | 16.5 | 57.7 |
| 1971 | 14.6 | 14.8 | 14.6 | 178. | 175. | 43.4 | 51.9 | 166. | 26.2 | 35.2 | 44.9 | 20.2 | 65.4 |
| 1972 | 15.3 | 14.3 | 15.3 | 281. | 99.2 | 49.6 | 27.1 | 22.0 | 15.2 | 17.2 | 16.0 | 12.3 | 48.7 |
| 1973 | 10.4 | 10.8 | 11.5 | 213. | 38.0 | 24.8 | 36.8 | 30.6 | 62.1 | 68.3 | 33.0 | 21.7 | 46.7 |
| 1974 | 16.6 | 14.0 | 16.8 | 225. | 66.8 | 38.0 | 50.7 | 19.8 | 17.6 | 15.1 | 9.97 | 8.61 | 41.6 |
| 1975 | 9.78 | 10.9 | 14.5 | 106. | 23.8 | 13.4 | 11.1 | 9.71 | 8.92 | 8.52 | 7.77 | 7.76 | 19.3 |
| 1976 | 8.61 | 8.31 | 10.8 | 90.5 | 38.3 | 11.3 | 19.4 | 20.5 | 10.7 | 11.5 | 9.98 | 7.00 | 20.6 |
| 1977 | 6.31 | 7.45 | 9.62 | 204. | 86.7 | 40.8 | 15.6 | 13.4 | 13.8 | 19.7 | 17.6 | 15.1 | 37.5 |
| 1978 | 10.8 | 9.19 | 22.1 | 138. | 124. | 54.8 | 53.6 | 21.8 | 17.9 | 29.8 | 21.8 | 14.5 | 43.2 |
| 1979 | 12.3 | 13.2 | 18.7 | 64.0 | 251. | 110. | 70.9 | 40.5 | 23.8 | 28.1 | 20.4 | 16.0 | 55.7 |
| 1980 | 12.3 | 11.1 | 11.1 | 163. | 78.4 | 31.2 | 25.5 | 22.1 | 46.6 | 61.9 | 35.0 | 13.7 | 42.7 |
| 1981 | 11.9 | 9.51 | 10.8 | 88.0 | 212. | 63.8 | 20.5 | 15.8 | 15.4 | 17.4 | 19.2 | 10.5 | 41.2 |
| 1982 | 10.7 | 9.88 | 10.6 | 148. | 47.3 | 28.3 | 11.9 | 14.8 | 13.1 | 27.4 | 17.3 | 13.1 | 29.4 |
| 1983 | 13.2 | 11.5 | 13.3 | 192. | 53.5 | 68.9 | 33.9 | 39.4 | 81.6 | 83.8 | 31.8 | 21.9 | 53.7 |
| 1984 | 15.3 | 10.1 | 14.0 | 85.0 | 111. | 47.5 | 21.8 | 39.9 | 46.6 | 119. | 67.9 | 29.0 | 50.6 |
| 1985 | 18.1 | 15.1 | 18.8 | 201. | 95.1 | 96.0 | 117. | 80.0 | 25.3 | 32.0 | 24.1 | 17.9 | 61.7 |