Continent: |
Asia | Latitude: |
53.97 | deg. |
Country: |
Russia | Longitude: |
105.88 |
deg. |
River: |
Lena | Elevation: |
506.0 |
m |
Station: |
Kachug | Area: |
17400.0 |
km2 |
| Mean for Observation Period: | 1936 | - | 1988 | Total months: | 636 |
| - | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
| m3/c | 27.1 | 23.6 | 23.1 | 54.7 | 205. | 191. | 160. | 138. | 120. | -116. | -153. | 32.6 | 58.9 |
| mm | 4.18 | 3.31 | 3.55 | 8.14 | 31.5 | 28.4 | 24.7 | 21.3 | 17.9 | -18. | -23. | 5.01 | 107. |
| km3 | 0.073 | 0.058 | 0.062 | 0.14 | 0.55 | 0.49 | 0.43 | 0.37 | 0.31 | 0. | 0. | 0.087 | 1.86 |
| l/s/km2 | 1.56 | 1.36 | 1.33 | 3.14 | 11.8 | 10.9 | 9.22 | 7.94 | 6.91 | -7. | -9. | 1.87 | 3.38 |
| %% | 3.84 | 3.34 | 3.27 | 7.74 | 29.0 | 27.0 | 22.7 | 19.5 | 17.0 | -16. | -22. | 4.61 | 100. |
Lena at Kachug
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
| 1936 | 28.5 | 23.4 | 22.0 | 30.9 | 315. | 421. | 177. | 202. | 154. | 96.4 | 59.3 | 47.7 | 131. |
| 1937 | 41.8 | 33.9 | 26.7 | 34.1 | 276. | 126. | 177. | 142. | 154. | 103. | 54.6 | 46.9 | 101. |
| 1938 | 39.3 | 37.0 | 33.2 | 106. | 169. | 374. | 237. | 198. | 351. | 150. | 67.8 | 55.3 | 151. |
| 1939 | 46.7 | 39.7 | 30.8 | 111. | 146. | 144. | 105. | 75.3 | 65.1 | 57.9 | 33.6 | 13.9 | 72.4 |
| 1940 | 10.6 | 8.70 | 6.40 | 18.1 | 160. | 138. | 272. | 139. | 130. | 80.4 | 46.8 | 32.5 | 86.9 |
| 1941 | 24.3 | 19.1 | 15.3 | 26.5 | 323. | 216. | 153. | 141. | 166. | 87.5 | 40.3 | 34.9 | 104. |
| 1942 | 38.6 | 30.4 | 29.0 | 78.0 | 324. | 334. | 352. | 113. | 110. | 70.5 | 35.2 | 25.7 | 128. |
| 1943 | 25.4 | 22.4 | 28.1 | 158. | 150. | 99.4 | 69.3 | 56.2 | 59.2 | 39.1 | 37.7 | 32.5 | 64.8 |
| 1944 | 25.3 | 18.5 | 17.9 | 53.8 | 130. | 96.0 | 171. | 204. | 113. | 84.4 | 43.5 | 38.6 | 83.0 |
| 1945 | 33.4 | 25.5 | 19.8 | 111. | 186. | 136. | 104. | 148. | 151. | 138. | 71.9 | 60.2 | 98.7 |
| 1946 | 42.4 | 32.4 | 22.4 | 55.1 | 130. | 204. | 106. | 94.7 | 110. | -9999. | -9999. | 63.4 | -1595. |
| 1947 | 31.0 | 28.4 | 27.4 | 63.6 | 188. | 168. | 232. | 174. | 153. | 126. | 42.7 | 36.2 | 106. |
| 1948 | 32.5 | 26.2 | 20.4 | 61.7 | 141. | 233. | 323. | 333. | 317. | 161. | 81.3 | 57.1 | 149. |
| 1949 | 45.4 | 43.1 | 43.0 | 70.6 | 205. | 218. | 189. | 153. | 139. | 85.0 | 42.3 | 35.1 | 106. |
| 1950 | 31.4 | 33.5 | 34.9 | 44.0 | 194. | 103. | 74.0 | 129. | 99.7 | 79.0 | 30.4 | 31.9 | 73.7 |
| 1951 | 24.6 | 20.1 | 19.9 | 32.1 | 385. | 172. | 122. | 96.7 | 111. | 90.5 | 31.7 | 22.3 | 94.0 |
| 1952 | 24.1 | 22.3 | 21.3 | 36.2 | 246. | 238. | 134. | 144. | 118. | 95.1 | 39.7 | 33.1 | 96.0 |
| 1953 | 27.1 | 29.6 | 28.7 | 76.9 | 182. | 116. | 68.3 | 54.2 | 51.2 | 43.5 | 20.2 | 21.8 | 60.0 |
| 1954 | 18.7 | 17.1 | 15.2 | 23.3 | 97.2 | 166. | 206. | 97.3 | 60.3 | 46.0 | 19.4 | 20.4 | 65.6 |
| 1955 | 17.3 | 16.2 | 16.7 | 28.7 | 171. | 218. | 114. | 73.9 | 70.0 | 54.0 | 27.7 | 33.5 | 70.1 |
| 1956 | 26.0 | 22.7 | 22.6 | 34.0 | 213. | 212. | 99.9 | 78.7 | 73.5 | 51.3 | 25.5 | 24.5 | 73.6 |
| 1957 | 20.3 | 17.6 | 18.1 | 32.3 | 145. | 117. | 80.4 | 226. | 165. | 113. | 39.4 | 28.2 | 83.5 |
| 1958 | 26.8 | 21.5 | 23.5 | 36.9 | 160. | 97.5 | 62.8 | 62.4 | 39.2 | 32.2 | 19.6 | 20.5 | 50.2 |
| 1959 | 14.3 | 13.6 | 19.6 | 31.5 | 140. | 316. | 115. | 240. | 143. | 83.1 | 35.0 | 32.7 | 98.6 |
| 1960 | 29.3 | 27.6 | 27.1 | 50.8 | 234. | 279. | 202. | 136. | 106. | 62.6 | 35.0 | 37.1 | 102. |
| 1961 | 28.5 | 25.3 | 27.9 | 124. | 199. | 230. | 122. | 227. | 169. | 84.2 | 38.9 | 38.8 | 110. |
| 1962 | 30.7 | 29.8 | 30.8 | 70.3 | 246. | 205. | 302. | 99.7 | 72.3 | 47.9 | 24.0 | 26.4 | 98.7 |
| 1963 | 24.4 | 26.0 | 25.3 | 43.1 | 166. | 225. | 148. | 180. | 223. | 84.1 | 40.6 | 41.6 | 102. |
| 1964 | 34.8 | 25.4 | 26.7 | 46.0 | 282. | 126. | 143. | 83.8 | 103. | 62.4 | 25.5 | 25.9 | 82.0 |
| 1965 | 26.4 | 25.5 | 28.0 | 36.8 | 253. | 179. | 110. | 306. | 133. | 92.7 | 39.7 | 39.5 | 106. |
| 1966 | 33.2 | 31.0 | 30.6 | 47.8 | 263. | 200. | 258. | 113. | 105. | 77.5 | 25.0 | 31.1 | 101. |
| 1967 | 26.5 | 25.2 | 26.9 | 137. | 190. | 89.9 | 167. | 234. | 174. | 107. | 64.4 | 48.4 | 108. |
| 1968 | 41.8 | 34.3 | 37.7 | 132. | 305. | 193. | 137. | 147. | 115. | 78.5 | 39.2 | 37.3 | 108. |
| 1969 | 31.1 | 22.9 | 21.9 | 52.3 | 198. | 155. | 103. | 86.3 | 86.0 | 49.2 | 19.0 | 24.2 | 70.7 |
| 1970 | 22.5 | 24.2 | 23.1 | 56.2 | 295. | 193. | 96.6 | 64.5 | 60.0 | 51.3 | 27.4 | 19.8 | 77.8 |
| 1971 | 19.2 | 16.2 | 18.0 | 45.2 | 130. | 128. | 158. | 202. | 102. | 61.9 | 38.3 | 29.8 | 79.0 |
| 1972 | 24.9 | 22.1 | 23.0 | 50.8 | 119. | 142. | 237. | 119. | 82.6 | 45.3 | 30.0 | 25.8 | 76.8 |
| 1973 | 24.9 | 22.2 | 23.3 | 37.1 | 232. | 201. | 263. | 232. | 152. | 66.0 | 48.2 | 35.5 | 111. |
| 1974 | 28.8 | 21.4 | 21.6 | 54.9 | 162. | 289. | 88.2 | 66.3 | 70.4 | 56.0 | 30.8 | 25.7 | 76.3 |
| 1975 | 22.3 | 21.4 | 22.0 | 53.9 | 287. | 150. | 164. | 155. | 125. | 68.0 | 28.0 | 25.4 | 93.5 |
| 1976 | 25.2 | 22.9 | 23.1 | 32.1 | 155. | 159. | 109. | 81.6 | 90.8 | 40.7 | 21.8 | 24.7 | 65.5 |
| 1977 | 20.4 | 18.3 | 17.0 | 34.7 | 165. | 199. | 49.4 | 50.2 | 51.7 | 32.8 | 24.2 | 26.6 | 57.4 |
| 1978 | 20.4 | 14.8 | 15.8 | 39.0 | 196. | 189. | 218. | 108. | 77.2 | 43.1 | 15.6 | 22.6 | 80.0 |
| 1979 | 19.3 | 16.9 | 17.8 | 27.5 | 277. | 134. | 53.9 | 55.3 | 70.4 | 48.7 | 30.1 | 26.8 | 64.8 |
| 1980 | 15.8 | 14.6 | 15.3 | 22.5 | 166. | 234. | 148. | 60.5 | 57.4 | 54.1 | 26.7 | 24.0 | 69.9 |
| 1981 | 18.4 | 15.2 | 15.6 | 80.2 | 176. | 78.1 | 66.2 | 61.9 | 57.5 | 39.3 | 25.4 | 18.8 | 54.4 |
| 1982 | 16.3 | 14.2 | 15.1 | 42.3 | 179. | 197. | 176. | 318. | 96.0 | 63.0 | 32.4 | 32.2 | 98.5 |
| 1983 | 30.8 | 22.5 | 23.4 | 28.9 | 234. | 227. | 277. | 159. | 213. | 125. | 50.3 | 35.2 | 119. |
| 1984 | 36.7 | 32.0 | 31.0 | 44.3 | 324. | 165. | 102. | 79.3 | 57.5 | 40.2 | 20.9 | 22.8 | 79.6 |
| 1985 | 18.9 | 15.2 | 13.9 | 32.3 | 110. | 238. | 106. | 198. | 198. | 88.1 | 37.8 | 36.3 | 91.0 |
| 1986 | 26.9 | 24.5 | 24.4 | 45.7 | 221. | 259. | 104. | 68.8 | 86.4 | 50.2 | 33.4 | 28.7 | 81.1 |
| 1987 | 20.5 | 17.2 | 16.0 | 26.1 | 137. | 195. | 122. | 58.1 | 94.8 | 69.4 | 32.4 | 17.6 | 67.2 |
| 1988 | 22.8 | 18.2 | 18.3 | 49.1 | 179. | 176. | 526. | 192. | 239. | 103. | 50.4 | 48.2 | 135. |