Ust-Ordynskiy climate
Ust-Ordynskiy (Irkutsk Oblast, Russia) has a subarctic climate (Köppen Dfc). The average temperature over the year is 0 °C32 °F, and about 347 mm14 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Ust-Ordynskiy climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | −171 | −26−14 | −22−7 | 90.4 | 31 |
| Feb | −139 | −24−10 | −18−1 | 80.3 | 28 |
| Mar | −327 | −146 | −916 | 100.4 | 31 |
| Apr | 846 | −426 | 236 | 180.7 | 27 |
| May | 1661 | 337 | 1049 | 331.3 | 12 |
| Jun | 2577 | 1253 | 1865 | 502.0 | 0 |
| Jul | 2781 | 1458 | 2169 | 672.6 | 0 |
| Aug | 2475 | 1152 | 1864 | 682.7 | 0 |
| Sep | 1560 | 438 | 949 | 411.6 | 8 |
| Oct | 541 | −424 | 033 | 170.7 | 29 |
| Nov | −621 | −147 | −1014 | 130.5 | 30 |
| Dec | −155 | −23−9 | −19−2 | 130.5 | 31 |
| Year | 2781 | −26−14 | 032 | 34714 | 228 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 98% | 59% | 1.2 | 8:07 |
| Feb | 97% | 56% | 2.3 | 9:47 |
| Mar | 90% | 62% | 3.8 | 11:41 |
| Apr | 66% | 69% | 4.8 | 13:52 |
| May | 60% | 67% | 5.6 | 15:46 |
| Jun | 59% | 68% | 5.9 | 16:51 |
| Jul | 62% | 67% | 5.5 | 16:24 |
| Aug | 66% | 64% | 4.6 | 14:43 |
| Sep | 72% | 65% | 3.4 | 12:34 |
| Oct | 77% | 70% | 2.2 | 10:28 |
| Nov | 88% | 73% | 1.2 | 8:35 |
| Dec | 95% | 67% | 0.8 | 7:37 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Ust-Ordynskiy is like
The warmest month is July, with an average high of 27 °C81 °F and a low of 14 °C58 °F. The coldest is January, when highs average −17 °C1 °F and lows −26 °C−14 °F. The climate is extremely continental — the average temperature swings by 42.2 °C76 °F between the coldest and the warmest month.
It is dry, with about 347 mm14 in of precipitation per year. The wettest three-month stretch is June–August, which brings 53% of the annual total. Months with less than 20 mm0.8 in on average: October–April. The wettest month is August (68 mm2.7 in), the driest is February (8 mm0.3 in).
Relative humidity ranges from 59% in June to 98% in January. The clearest skies (lowest average cloud amount, 56%) are typical of February. Average wind speed near the ground ranges from 6 km/h (4 mph) in July to 9 km/h (6 mph) in April. Daylight lasts from about 7.6 hours in December to 16.9 hours in June.
A lasting snow cover is typical in October–April, when the average snow depth in the reanalysis exceeds 10 cm (deepest in February, about 20 cm).
Best time to visit Ust-Ordynskiy
Based on these averages, the most comfortable months for sightseeing and outdoor activities are June–August: average highs of 24 °C75 °F to 27 °C81 °F with 50 mm2.0 in to 68 mm2.7 in of precipitation per month.
The most challenging month is January, which is cold, with average highs of −17 °C1 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Ust-Ordynskiy
- Winter (December–February) — highs −171 to −13 °C9 °F, lows −26−14 to −23 °C−9 °F, about 10 mm0.4 in of precipitation a month. Pack heavy insulated clothing, thermal base layers, a warm hat, mittens and insulated boots.
- Spring (March–May) — highs −327 to 16 °C61 °F, lows −146 to 3 °C37 °F, about 21 mm0.8 in of precipitation a month. Pack a warm coat, layers and closed shoes, an extra layer for the cooler mornings and evenings and shoes with good grip, as frost is common.
- Summer (June–August) — highs 2475 to 27 °C81 °F, lows 1152 to 14 °C58 °F, about 61 mm2.4 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
- Autumn (September–November) — highs −621 to 15 °C60 °F, lows −147 to 4 °C38 °F, about 24 mm0.9 in of precipitation a month. Pack a warm coat, layers and closed shoes and shoes with good grip, as frost is common.
How Ust-Ordynskiy compares
Compared with Angarsk, about 63 km to the southwest, Ust-Ordynskiy is on average 1.2 °C2.1 °F cooler and receives 24% less precipitation (347 mm14 in vs 457 mm18 in). The difference is largest in March (2.1 °C3.7 °F cooler).
Of the 169 places in Russia covered by World Climates, Ust-Ordynskiy is the 145th warmest by annual mean temperature and the 165th wettest by annual precipitation. See all of them on the Russia climate page.
Places in other countries with the most similar temperature and rainfall pattern: Hulunbuir (China, Dwb), Yakeshi (China, Dwb) and Jiagedaqi (China, Dwb).
Nearby places
- Angarsk 63 km · 1 °C34 °F · 457 mm18 in
- Irkutsk 65 km · 1 °C34 °F · 418 mm16 in
- Ulan-Ude 223 km · 1 °C33 °F · 310 mm12 in
- Bratsk 421 km · −1 °C30 °F · 525 mm21 in
- Ulan Bator 566 km · 0 °C33 °F · 276 mm11 in
- Ust-Ilimsk 592 km · −2 °C28 °F · 554 mm22 in
- Chita 599 km · 0 °C31 °F · 374 mm15 in
- Kansk 694 km · 1 °C34 °F · 568 mm22 in
Frequently asked questions
What is the warmest month in Ust-Ordynskiy?
July is the warmest month in Ust-Ordynskiy, with an average high of 27 °C (81 °F) and an average low of 14 °C (58 °F).
What is the coldest month in Ust-Ordynskiy?
January is the coldest month, with an average high of -17 °C (1 °F) and an average low of -26 °C (-14 °F).
When does it rain the most in Ust-Ordynskiy?
August is the wettest month with about 68 mm (2.7 in) of precipitation; February is the driest with about 8 mm (0.3 in).
What is the best time to visit Ust-Ordynskiy?
Judging by long-term averages, the most comfortable months are June–August.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 696 m, while Ust-Ordynskiy lies at about 513 m. Temperatures on this page were therefore adjusted by +1.2 °C2.1 °F using the standard lapse rate of 6.5 °C per 1,000 m.