Climate averages 1991–2020
Ust’-Ilimsk weather
in May.
A cool, moderately wet month: the 4th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a cool month in Ust’-Ilimsk: daytime highs average 12.5°C and nights cool to about 2.6°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 43 mm of rain on roughly 11 days, which makes May a moderately wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 16 h 40 min on an average May day.
The nearest other city in this atlas is Bratsk (217 km away). In May its highs average 10.9°C, 1.6°C cooler than Ust’-Ilimsk, with 38 mm of rain.
Among the 236 cities listed in Russia, Ust’-Ilimsk ranks 218th of 236 for the warmest May highs and joint 40th of 236 for the driest May (rainfall, lowest first). The mean May high of those 236 cities is 17.0°C; Ust’-Ilimsk is 4.6°C cooler than that mean.
From May to June, average highs rise by 8.3°C to 20.8°C, and monthly rainfall rises from 43 mm to 56 mm.
The annual picture
May 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 | 3.5°C-4.7°C | -4.7°C | 28 | 7.8 | 14.314 h |
| May, selected | 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
May in nearby cities
- Bratsk in MayRussia · 217 kmHigh 10.9°C · Low 1.9°C · 38 mm rain
- Kansk in MayRussia · 464 kmHigh 15.2°C · Low 3.8°C · 46 mm rain
- Zelenogorsk in MayRussia · 531 kmHigh 15.1°C · Low 3.8°C · 51 mm rain
- Zheleznogorsk (Krasnoyarsk Krai), Russia in MayRussia · 584 kmHigh 15.3°C · Low 3.7°C · 54 mm rain
- Usol’ye-Sibirskoye in MayRussia · 587 kmHigh 17.2°C · Low 3.7°C · 34 mm rain
- Angarsk in MayRussia · 610 kmHigh 17.4°C · Low 3.6°C · 33 mm rain
- Krasnoyarsk in MayRussia · 627 kmHigh 15.2°C · Low 3.7°C · 48 mm rain
- Irkutsk in MayRussia · 643 kmHigh 16.8°C · Low 3.3°C · 38 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.