Continent: |
Asia | Latitude: |
55.13 | deg. |
Country: |
Russia | Longitude: |
105.23 |
deg. |
River: |
Lena | Elevation: |
385.3 |
m |
Station: |
Gruznovka | Area: |
41700.0 |
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 | 62.7 | 52.4 | 49.8 | 138. | 588. | 351. | 293. | 256. | 241. | 166. | 86.9 | 80.6 | 197. |
| mm | 4.02 | 3.07 | 3.20 | 8.56 | 37.7 | 21.8 | 18.8 | 16.4 | 15.0 | 10.7 | 5.40 | 5.18 | 149. |
| km3 | 0.17 | 0.13 | 0.13 | 0.36 | 1.57 | 0.91 | 0.78 | 0.69 | 0.62 | 0.45 | 0.23 | 0.22 | 6.22 |
| l/s/km2 | 1.50 | 1.26 | 1.19 | 3.30 | 14.1 | 8.41 | 7.03 | 6.13 | 5.78 | 3.99 | 2.08 | 1.93 | 4.72 |
| %% | 2.65 | 2.22 | 2.11 | 5.82 | 24.9 | 14.8 | 12.4 | 10.8 | 10.2 | 7.03 | 3.67 | 3.41 | 100. |
Lena at Gruznovka
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
| 1936 | 50.3 | 46.5 | 40.0 | 50.5 | 682. | 739. | 390. | 407. | 322. | 216. | 110. | 107. | 263. |
| 1937 | 84.3 | 71.5 | 62.5 | 75.6 | 831. | 215. | 330. | 253. | 277. | 217. | 113. | 106. | 220. |
| 1938 | 82.6 | 72.7 | 67.1 | 375. | 554. | 898. | 539. | 375. | 587. | 309. | 157. | 132. | 346. |
| 1939 | 96.9 | 79.0 | 76.7 | 458. | 344. | 232. | 168. | 131. | 123. | 98.7 | 71.1 | 79.9 | 163. |
| 1940 | 49.7 | 37.1 | 40.7 | 137. | 419. | 245. | 585. | 256. | 291. | 182. | 103. | 88.8 | 203. |
| 1941 | 70.7 | 52.2 | 44.5 | 72.2 | 909. | 359. | 253. | 245. | 322. | 173. | 99.8 | 87.5 | 224. |
| 1942 | 66.4 | 51.7 | 51.6 | 107. | 644. | 783. | 599. | 197. | 165. | 127. | 70.5 | 54.7 | 243. |
| 1943 | 48.1 | 38.9 | 40.2 | 257. | 308. | 138. | 93.2 | 76.0 | 77.0 | 66.8 | 47.6 | 44.2 | 103. |
| 1944 | 35.0 | 29.4 | 28.0 | 166. | 380. | 162. | 265. | 398. | 274. | 212. | 97.4 | 80.3 | 177. |
| 1945 | 70.9 | 54.5 | 49.4 | 399. | 566. | 286. | 186. | 267. | 354. | 317. | 168. | 144. | 238. |
| 1946 | 96.8 | 84.0 | 68.5 | 135. | 439. | 348. | 238. | 237. | 281. | 191. | 93.9 | 101. | 193. |
| 1947 | 81.5 | 67.1 | 67.7 | 211. | 460. | 256. | 431. | 351. | 314. | 237. | 107. | 95.3 | 223. |
| 1948 | 93.5 | 86.7 | 82.1 | 188. | 326. | 493. | 831. | 803. | 729. | 385. | 173. | 156. | 362. |
| 1949 | 126. | 107. | 97.7 | 195. | 430. | 367. | 262. | 200. | 206. | 144. | 79.9 | 80.0 | 191. |
| 1950 | 62.7 | 58.1 | 59.6 | 99.5 | 496. | 167. | 112. | 188. | 150. | 128. | 61.6 | 67.5 | 138. |
| 1951 | 52.6 | 49.6 | 53.0 | 73.9 | 1130. | 289. | 186. | 155. | 162. | 139. | 68.4 | 68.8 | 202. |
| 1952 | 50.4 | 47.3 | 42.8 | 63.1 | 719. | 449. | 270. | 290. | 263. | 219. | 101. | 87.4 | 217. |
| 1953 | 67.5 | 58.8 | 59.7 | 240. | 391. | 202. | 129. | 84.7 | 79.8 | 67.4 | 38.6 | 40.3 | 122. |
| 1954 | 36.8 | 32.2 | 28.3 | 39.8 | 319. | 345. | 355. | 172. | 158. | 110. | 41.1 | 37.7 | 140. |
| 1955 | 31.8 | 32.1 | 30.6 | 51.2 | 716. | 409. | 328. | 254. | 243. | 176. | 82.0 | 87.9 | 203. |
| 1956 | 70.7 | 61.1 | 58.5 | 77.0 | 787. | 356. | 194. | 135. | 121. | 96.9 | 51.5 | 45.9 | 171. |
| 1957 | 35.2 | 27.1 | 25.3 | 58.1 | 480. | 256. | 137. | 317. | 254. | 207. | 72.2 | 76.9 | 162. |
| 1958 | 59.7 | 46.7 | 40.4 | 90.0 | 453. | 175. | 84.9 | 105. | 71.2 | 54.3 | 38.9 | 34.1 | 104. |
| 1959 | 30.1 | 29.2 | 31.9 | 55.0 | 542. | 493. | 273. | 376. | 294. | 198. | 66.7 | 83.5 | 206. |
| 1960 | 68.7 | 67.8 | 65.5 | 122. | 779. | 560. | 404. | 249. | 208. | 171. | 109. | 88.8 | 241. |
| 1961 | 67.7 | 62.6 | 62.6 | 336. | 535. | 452. | 219. | 343. | 287. | 170. | 85.2 | 109. | 227. |
| 1962 | 79.7 | 69.5 | 66.6 | 138. | 703. | 316. | 515. | 210. | 176. | 140. | 67.2 | 73.1 | 213. |
| 1963 | 66.1 | 55.5 | 55.7 | 72.3 | 469. | 352. | 271. | 347. | 514. | 254. | 122. | 112. | 224. |
| 1964 | 89.6 | 62.1 | 57.9 | 90.3 | 803. | 242. | 202. | 143. | 179. | 131. | 82.2 | 70.0 | 179. |
| 1965 | 63.1 | 55.6 | 50.2 | 87.4 | 752. | 282. | 204. | 413. | 243. | 181. | 90.0 | 88.5 | 209. |
| 1966 | 63.4 | 54.1 | 54.3 | 71.3 | 773. | 302. | 404. | 198. | 180. | 141. | 79.8 | 68.1 | 199. |
| 1967 | 55.8 | 45.0 | 45.9 | 384. | 471. | 153. | 244. | 470. | 411. | 274. | 161. | 135. | 237. |
| 1968 | 106. | 78.5 | 72.5 | 346. | 794. | 294. | 278. | 353. | 305. | 208. | 111. | 109. | 255. |
| 1969 | 79.8 | 61.5 | 54.0 | 89.9 | 635. | 284. | 195. | 141. | 136. | 96.7 | 52.2 | 56.6 | 157. |
| 1970 | 45.9 | 41.0 | 37.4 | 84.3 | 762. | 448. | 186. | 140. | 127. | 119. | 60.6 | 48.4 | 175. |
| 1971 | 42.7 | 39.9 | 35.1 | 125. | 377. | 335. | 366. | 419. | 279. | 186. | 117. | 88.7 | 201. |
| 1972 | 66.1 | 50.6 | 52.7 | 129. | 280. | 258. | 474. | 230. | 186. | 125. | 88.4 | 75.7 | 168. |
| 1973 | 55.0 | 41.5 | 43.7 | 62.2 | 826. | 336. | 374. | 309. | 253. | 151. | 85.0 | 82.0 | 218. |
| 1974 | 64.7 | 44.8 | 41.8 | 111. | 448. | 554. | 158. | 126. | 134. | 109. | 68.1 | 55.4 | 160. |
| 1975 | 49.7 | 42.7 | 41.2 | 123. | 732. | 250. | 234. | 348. | 277. | 191. | 119. | 102. | 209. |
| 1976 | 74.0 | 62.5 | 59.4 | 76.3 | 516. | 316. | 246. | 172. | 190. | 112. | 60.9 | 58.6 | 162. |
| 1977 | 46.0 | 33.3 | 34.1 | 91.6 | 668. | 369. | 118. | 113. | 106. | 77.0 | 42.1 | 38.1 | 145. |
| 1978 | 33.6 | 23.0 | 24.4 | 93.8 | 671. | 408. | 453. | 201. | 175. | 115. | 69.0 | 58.8 | 194. |
| 1979 | 43.5 | 37.0 | 36.5 | 48.7 | 654. | 231. | 105. | 101. | 115. | 90.2 | 41.9 | 40.2 | 129. |
| 1980 | 24.8 | 21.9 | 23.3 | 37.3 | 558. | 373. | 238. | 194. | 146. | 129. | 64.1 | 63.2 | 156. |
| 1981 | 52.6 | 40.8 | 40.3 | 289. | 396. | 146. | 134. | 147. | 134. | 101. | 57.2 | 47.1 | 132. |
| 1982 | 32.8 | 28.4 | 31.4 | 119. | 538. | 333. | 295. | 499. | 213. | 162. | 86.5 | 83.0 | 202. |
| 1983 | 69.7 | 62.3 | 56.4 | 61.2 | 868. | 415. | 458. | 392. | 439. | 304. | 148. | 147. | 285. |
| 1984 | 115. | 88.3 | 80.3 | 93.9 | 855. | 282. | 250. | 178. | 163. | 132. | 67.8 | 61.2 | 197. |
| 1985 | 46.3 | 44.5 | 40.9 | 79.6 | 385. | 459. | 240. | 257. | 330. | 182. | 94.2 | 84.6 | 187. |
| 1986 | 65.6 | 55.4 | 50.4 | 97.8 | 621. | 435. | 155. | 120. | 151. | 98.5 | 65.0 | 52.0 | 164. |
| 1987 | 36.7 | 33.2 | 28.7 | 49.9 | 366. | 361. | 200. | 121. | 211. | 172. | 85.0 | 80.0 | 145. |
| 1988 | 65.7 | 53.7 | 48.4 | 114. | 579. | 372. | 669. | 352. | 382. | 220. | 111. | 109. | 256. |