Continent: |
Asia | Latitude: |
52.28 | deg. |
Country: |
Russia | Longitude: |
104.28 |
deg. |
River: |
Irkut | Elevation: |
424.1 |
m |
Station: |
Irkutsk | Area: |
15000.0 |
km2 |
| Mean for Observation Period: | 1936 | - | 1987 | Total months: | 624 |
| - | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
| m3/c | 27.1 | 22.4 | 23.3 | 68.7 | 180. | 253. | 344. | 319. | 228. | 116. | 47.1 | 36.5 | 139. |
| mm | 4.84 | 3.64 | 4.15 | 11.9 | 32.2 | 43.7 | 61.4 | 56.9 | 39.3 | 20.7 | 8.13 | 6.51 | 292. |
| km3 | 0.073 | 0.055 | 0.062 | 0.18 | 0.48 | 0.66 | 0.92 | 0.85 | 0.59 | 0.31 | 0.12 | 0.098 | 4.38 |
| l/s/km2 | 1.81 | 1.49 | 1.55 | 4.58 | 12.0 | 16.9 | 22.9 | 21.3 | 15.2 | 7.72 | 3.14 | 2.43 | 9.24 |
| %% | 1.63 | 1.35 | 1.40 | 4.13 | 10.8 | 15.2 | 20.7 | 19.2 | 13.7 | 6.96 | 2.83 | 2.19 | 100. |
Irkut at Irkutsk
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
| 1936 | 19.0 | 21.8 | 21.8 | 44.9 | 166. | 220. | 222. | 155. | 155. | 94.9 | 35.5 | 32.0 | 99.0 |
| 1937 | 18.5 | 16.1 | 17.5 | 42.3 | 185. | 243. | 397. | 343. | 172. | 105. | 24.7 | 32.5 | 133. |
| 1938 | 26.7 | 24.1 | 28.3 | 102. | 147. | 613. | 275. | 207. | 175. | 114. | 46.8 | 33.4 | 149. |
| 1939 | 26.2 | 20.8 | 21.5 | 80.8 | 129. | 392. | 231. | 200. | 162. | 94.8 | 39.4 | 29.3 | 119. |
| 1940 | 23.6 | 19.5 | 22.7 | 86.6 | 180. | 527. | 272. | 228. | 236. | 98.0 | 47.1 | 27.3 | 147. |
| 1941 | 25.2 | 22.2 | 25.5 | 57.3 | 181. | 283. | 360. | 488. | 282. | 133. | 38.6 | 45.1 | 162. |
| 1942 | 28.9 | 21.9 | 21.4 | 62.4 | 121. | 208. | 810. | 259. | 187. | 128. | 38.6 | 25.9 | 159. |
| 1943 | 17.3 | 14.0 | 15.0 | 59.1 | 328. | 322. | 260. | 322. | 193. | 116. | 38.8 | 27.9 | 143. |
| 1944 | 22.5 | 17.6 | 17.6 | 80.2 | 150. | 192. | 240. | 225. | 254. | 114. | 28.0 | 37.7 | 115. |
| 1945 | 24.1 | 19.3 | 18.9 | 99.9 | 115. | 142. | 358. | 359. | 408. | 154. | 53.5 | 45.8 | 150. |
| 1946 | 33.6 | 28.2 | 27.3 | 84.7 | 141. | 243. | 368. | 338. | 233. | 127. | 59.7 | 35.1 | 143. |
| 1947 | 27.9 | 21.2 | 20.7 | 82.3 | 146. | 298. | 316. | 374. | 220. | 120. | 40.6 | 34.8 | 142. |
| 1948 | 26.6 | 22.9 | 26.2 | 81.6 | 158. | 272. | 336. | 491. | 341. | 138. | 50.7 | 40.1 | 165. |
| 1949 | 30.6 | 28.3 | 28.8 | 74.2 | 156. | 282. | 444. | 314. | 216. | 101. | 43.8 | 36.5 | 146. |
| 1950 | 23.8 | 24.3 | 24.6 | 51.7 | 217. | 320. | 389. | 458. | 302. | 144. | 49.0 | 45.2 | 171. |
| 1951 | 34.3 | 29.1 | 27.2 | 55.0 | 306. | 155. | 223. | 325. | 255. | 108. | 45.3 | 43.6 | 134. |
| 1952 | 35.3 | 28.6 | 26.2 | 50.8 | 228. | 351. | 519. | 392. | 185. | 113. | 41.3 | 39.0 | 167. |
| 1953 | 31.1 | 26.9 | 27.9 | 78.1 | 172. | 280. | 524. | 295. | 145. | 98.5 | 38.3 | 38.3 | 146. |
| 1954 | 32.1 | 25.8 | 26.1 | 55.5 | 94.0 | 196. | 478. | 371. | 175. | 102. | 42.4 | 34.6 | 136. |
| 1955 | 25.3 | 22.5 | 23.1 | 56.8 | 258. | 373. | 294. | 286. | 228. | 104. | 38.5 | 40.6 | 146. |
| 1956 | 31.8 | 26.5 | 24.6 | 53.2 | 205. | 215. | 243. | 176. | 144. | 86.0 | 38.0 | 34.9 | 106. |
| 1957 | 24.5 | 20.6 | 20.6 | 63.9 | 170. | 290. | 204. | 286. | 325. | 117. | 59.5 | 53.0 | 136. |
| 1958 | 36.5 | 28.5 | 27.0 | 80.0 | 222. | 185. | 222. | 200. | 172. | 89.4 | 39.4 | 36.4 | 112. |
| 1959 | 29.1 | 25.3 | 25.8 | 75.7 | 120. | 216. | 306. | 396. | 221. | 112. | 38.5 | 34.1 | 133. |
| 1960 | 27.0 | 23.4 | 22.8 | 66.7 | 115. | 367. | 406. | 275. | 203. | 92.7 | 40.5 | 34.5 | 139. |
| 1961 | 22.0 | 20.8 | 25.3 | 94.7 | 122. | 136. | 343. | 275. | 191. | 94.4 | 47.4 | 38.1 | 117. |
| 1962 | 29.3 | 21.4 | 24.2 | 66.4 | 186. | 194. | 532. | 305. | 154. | 91.1 | 37.5 | 34.7 | 140. |
| 1963 | 34.0 | 29.8 | 34.9 | 55.0 | 139. | 226. | 245. | 229. | 310. | 126. | 52.4 | 40.6 | 127. |
| 1964 | 37.1 | 25.4 | 24.6 | 52.4 | 223. | 187. | 204. | 256. | 212. | 102. | 48.8 | 36.3 | 117. |
| 1965 | 29.8 | 28.2 | 32.1 | 57.8 | 220. | 159. | 188. | 426. | 218. | 128. | 59.7 | 41.9 | 132. |
| 1966 | 37.0 | 29.4 | 32.3 | 57.5 | 222. | 313. | 622. | 381. | 228. | 138. | 45.8 | 42.2 | 179. |
| 1967 | 32.6 | 27.9 | 29.7 | 78.8 | 143. | 176. | 239. | 592. | 271. | 154. | 59.7 | 46.8 | 154. |
| 1968 | 36.7 | 31.8 | 32.5 | 83.2 | 209. | 222. | 588. | 392. | 254. | 129. | 45.0 | 40.6 | 172. |
| 1969 | 26.6 | 18.4 | 18.4 | 68.8 | 172. | 137. | 180. | 284. | 238. | 120. | 47.2 | 43.3 | 113. |
| 1970 | 34.0 | 27.0 | 24.0 | 58.2 | 296. | 233. | 265. | 335. | 340. | 162. | 66.8 | 49.9 | 158. |
| 1971 | 31.8 | 26.0 | 26.3 | 95.2 | 142. | 252. | 656. | 344. | 204. | 112. | 53.0 | 31.4 | 164. |
| 1972 | 29.1 | 24.7 | 27.9 | 92.0 | 118. | 148. | 277. | 267. | 138. | 83.8 | 47.2 | 38.7 | 108. |
| 1973 | 29.0 | 24.6 | 25.6 | 64.9 | 196. | 245. | 443. | 458. | 466. | 176. | 80.2 | 48.9 | 188. |
| 1974 | 39.9 | 26.1 | 24.3 | 96.8 | 177. | 304. | 248. | 290. | 182. | 116. | 53.0 | 39.1 | 133. |
| 1975 | 32.4 | 27.5 | 28.2 | 62.1 | 296. | 277. | 402. | 455. | 243. | 110. | 67.3 | 42.8 | 170. |
| 1976 | 36.0 | 32.5 | 30.4 | 51.9 | 151. | 151. | 264. | 277. | 162. | 110. | 39.3 | 31.3 | 111. |
| 1977 | 19.0 | 15.0 | 16.1 | 70.5 | 160. | 301. | 390. | 263. | 180. | 96.0 | 45.2 | 37.1 | 133. |
| 1978 | 29.8 | 21.2 | 25.1 | 67.0 | 97.1 | 144. | 325. | 216. | 185. | 91.2 | 42.8 | 31.8 | 106. |
| 1979 | 21.5 | 18.4 | 20.4 | 39.1 | 232. | 138. | 200. | 264. | 139. | 97.6 | 42.4 | 32.6 | 104. |
| 1980 | 20.9 | 17.8 | 19.8 | 33.6 | 190. | 258. | 196. | 288. | 208. | 110. | 49.4 | 31.8 | 119. |
| 1981 | 20.2 | 13.2 | 13.7 | 106. | 206. | 144. | 212. | 286. | 220. | 122. | 44.8 | 27.2 | 118. |
| 1982 | 16.1 | 12.2 | 12.4 | 74.8 | 163. | 180. | 361. | 386. | 287. | 151. | 46.0 | 27.9 | 143. |
| 1983 | 24.7 | 20.4 | 19.5 | 77.4 | 156. | 274. | 476. | 303. | 284. | 144. | 64.4 | 26.6 | 156. |
| 1984 | 21.6 | 17.4 | 16.3 | 45.1 | 190. | 249. | 359. | 224. | 192. | 106. | 48.2 | 31.1 | 125. |
| 1985 | 9.50 | 8.80 | 7.60 | 49.0 | 225. | 297. | 314. | 244. | 232. | 119. | 60.7 | 22.5 | 132. |
| 1986 | 15.1 | 8.90 | 20.3 | 74.4 | 199. | 319. | 372. | 237. | 152. | 95.4 | 38.2 | 17.9 | 129. |
| 1987 | 11.5 | 9.90 | 8.10 | 72.6 | 130. | 296. | 279. | 540. | 352. | 130. | 58.3 | 45.0 | 161. |