Climate averages 1991–2020
Ust’-Ilimsk weather
in April.
A cold, fairly dry month: the 6th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a cold month in Ust’-Ilimsk: daytime highs average 3.5°C and nights cool to about -4.7°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 28 mm of rain on roughly 8 days, which makes April a fairly dry month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 19 min on an average April day.
The nearest other city in this atlas is Bratsk (217 km away). In April its highs average 3.2°C, about as warm as Ust’-Ilimsk, with 19 mm of rain.
Among the 236 cities listed in Russia, Ust’-Ilimsk ranks 221st of 236 for the warmest April highs and joint 18th of 236 for the driest April (rainfall, lowest first). The mean April high of those 236 cities is 9.5°C; Ust’-Ilimsk is 6.0°C cooler than that mean.
From April to May, average highs rise by 8.9°C to 12.5°C, and monthly rainfall rises from 28 mm to 43 mm.
The annual picture
April in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Ust’-Ilimsk climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -18.5°C-24.1°C | -24.1°C | 14 | 5.1 | 7.37 h |
| February | -14.1°C-20.7°C | -20.7°C | 12 | 4.5 | 9.39 h |
| March | -5.0°C-12.5°C | -12.5°C | 19 | 6.3 | 11.812 h |
| April, selected | 3.5°C-4.7°C | -4.7°C | 28 | 7.8 | 14.314 h |
| May | 12.5°C2.6°C | 2.6°C | 43 | 10.6 | 16.717 h |
| June | 20.8°C11.2°C | 11.2°C | 56 | 10.5 | 18.018 h |
| July | 23.6°C15.0°C | 15.0°C | 59 | 10.0 | 17.417 h |
| August | 20.6°C12.6°C | 12.6°C | 57 | 9.9 | 15.415 h |
| September | 12.1°C5.2°C | 5.2°C | 51 | 10.9 | 12.913 h |
| October | 2.6°C-2.8°C | -2.8°C | 41 | 11.4 | 10.410 h |
| November | -9.5°C-15.8°C | -15.8°C | 31 | 9.7 | 8.08 h |
| December | -16.9°C-23.2°C | -23.2°C | 22 | 7.7 | 6.67 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
April in nearby cities
- Bratsk in AprilRussia · 217 kmHigh 3.2°C · Low -4.1°C · 19 mm rain
- Kansk in AprilRussia · 464 kmHigh 7.2°C · Low -3.0°C · 27 mm rain
- Zelenogorsk in AprilRussia · 531 kmHigh 7.1°C · Low -3.0°C · 31 mm rain
- Zheleznogorsk (Krasnoyarsk Krai), Russia in AprilRussia · 584 kmHigh 7.2°C · Low -2.8°C · 36 mm rain
- Usol’ye-Sibirskoye in AprilRussia · 587 kmHigh 9.5°C · Low -2.8°C · 20 mm rain
- Angarsk in AprilRussia · 610 kmHigh 9.7°C · Low -2.6°C · 19 mm rain
- Krasnoyarsk in AprilRussia · 627 kmHigh 7.3°C · Low -2.6°C · 31 mm rain
- Irkutsk in AprilRussia · 643 kmHigh 9.4°C · Low -2.7°C · 22 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Ust’-Ilimsk) is explained once on the Ust’-Ilimsk year overview and on the Sources, method and limits page.