ClimateAverages

Ust'-Ilimsk Climate

Irkutsk, Russian Federation · 11 weather stations within 200 km · records 1820 to 2025

Average annual daytime high
2.7°C
Warmest month · July
24.6°C
Typical daytime high
Coldest month · January
-29.9°C
Typical overnight low

Ust'-Ilimsk has an average annual daytime high of 2.7°C, based on the 1951 to 1980 baseline. Its warmest month is July, when highs typically reach 24.6°C, and its coldest is January, with overnight lows near -29.9°C.

Month by month averages

MonthAvg highAvg low
January-19.5°C-29.9°CColdest
February-16.2°C-29.8°C
March-4.3°C-20.7°C
April4.4°C-8.6°C
May13.1°C0.6°C
June22.1°C7.7°C
July24.6°C11.2°CWarmest
August20.6°C8.5°C
September13.1°C2.4°C
October2.1°C-5.9°C
November-9.6°C-19.3°C
December-18.5°C-28.1°C

Temperature range across the year

-32°-17°-3°12°27°JanFebMarAprMayJunJulAugSepOctNovDec
Daytime high Overnight low
Hottest year on record
2024
+3.6°C vs. 1951–1980
Coldest year on record
1840
-3.3°C vs. 1951–1980

These figures reflect annual averages, not single-day records. Daily observations are outside this dataset's precision.

Is Ust'-Ilimsk getting hotter?

Since 1900, Ust'-Ilimsk's average temperature has risen by +2.4°C. Compared to the earliest station records that begin in 1820, warming totals +2.7°C.

-3.3°-2.6°-1.8°-1.0°-0.2°1951–1980 baseline190019251950197520002025

20-year smoothed annual temperature reconstructed from station anomalies. Dashed line: 1951–1980 baseline.

Best time to visit
June to August

Daytime highs sit within a comfortable 15°C to 26°C range.

FAQ

What is the average temperature in Ust'-Ilimsk?

Ust'-Ilimsk's average annual daytime high is 2.7°C, based on the 1951 to 1980 baseline period. The warmest month is July, with highs averaging 24.6°C, and the coldest is January, with lows averaging -29.9°C.

What is the warmest month in Ust'-Ilimsk?

July is the warmest month in Ust'-Ilimsk, with typical daytime highs of 24.6°C.

What is the hottest year on record for Ust'-Ilimsk?

2024 is the hottest year on record for Ust'-Ilimsk, running +3.6°C above the 1951 to 1980 baseline.

Is Ust'-Ilimsk getting hotter?

Yes. Since 1900, Ust'-Ilimsk has warmed by roughly +2.4°C.

When is the best time to visit Ust'-Ilimsk?

June to August typically offers the most comfortable daytime highs, in the 15°C to 26°C range.

Nearby cities

Baseline period 1951 to 1980. Monthly averages are the mean of station observations weighted by proximity. Warming trend is the 20-year smoothed anomaly against that baseline.