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Biysk, Altai Krai Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Biysk, Altai Krai?
Biysk, Altai Krai gets 540 mm of precipitation a year over about 149 rainy days. July is the warmest month (average high 27°C) and January the coldest (average low -22°C).
Humid continental climate
Biysk, Altai Krai has warm summers and cold winters. Daytime highs range from about -11°C in January to 27°C in July. July is usually the wettest month. The most comfortable time to visit is typically May to June and August to September, when daytime highs sit near 22°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | -20° | -9° |
| Spring | Mar–May | -2° | 11° |
| Summer | Jun–Aug | 12° | 26° |
| Autumn | Sep–Nov | -2° | 9° |
How much rain does Biysk get?
Biysk gets 540 mm of precipitation in an average year, spread over about 149 days with measurable rain. That is more rainy days than 65% of Russia.
July is the wettest month, with 70 mm. February is the driest, with 24 mm. December has the most rainy days, about 16.
The longest dry spell in the last five years lasted 15 days, to October 30, 2021.
Biysk weather by month
Biysk weather in January
In January, Biysk averages a high of -11°C and a low of -22°C. It gets 30 mm of precipitation over about 14 rainy days. Estimated sunshine is 24% of daylight hours, derived from ERA5 cloud cover. The January record high is 7°C (1983) and the record low is -52°C (2001).
Biysk weather in February
In February, Biysk averages a high of -7°C and a low of -20°C. It gets 24 mm of precipitation over about 10 rainy days. Estimated sunshine is 31% of daylight hours, derived from ERA5 cloud cover. The February record high is 10°C (1978) and the record low is -46°C (1974).
Biysk weather in March
In March, Biysk averages a high of 1°C and a low of -12°C. It gets 26 mm of precipitation over about 11 rainy days. Estimated sunshine is 28% of daylight hours, derived from ERA5 cloud cover. The March record high is 17°C (1989) and the record low is -43°C (1971).
Biysk weather in April
In April, Biysk averages a high of 12°C and a low of -1°C. It gets 40 mm of precipitation over about 11 rainy days. Estimated sunshine is 46% of daylight hours, derived from ERA5 cloud cover. The April record high is 34°C (1997) and the record low is -25°C (2001).
Biysk weather in May
In May, Biysk averages a high of 21°C and a low of 6°C. It gets 57 mm of precipitation over about 12 rainy days. Estimated sunshine is 47% of daylight hours, derived from ERA5 cloud cover. The May record high is 37°C (1980) and the record low is -8°C (2017). May is one of the most comfortable months to visit.
Biysk weather in June
In June, Biysk averages a high of 25°C and a low of 12°C. It gets 55 mm of precipitation over about 11 rainy days. Estimated sunshine is 44% of daylight hours, derived from ERA5 cloud cover. The June record high is 37°C (2023) and the record low is -1°C (2014). June is one of the most comfortable months to visit.
Biysk weather in July
In July, Biysk averages a high of 27°C and a low of 14°C. It gets 70 mm of precipitation over about 13 rainy days. Estimated sunshine is 47% of daylight hours, derived from ERA5 cloud cover. The July record high is 39°C (1992) and the record low is 1°C (1971).
Biysk weather in August
In August, Biysk averages a high of 25°C and a low of 11°C. It gets 53 mm of precipitation over about 11 rainy days. Estimated sunshine is 49% of daylight hours, derived from ERA5 cloud cover. The August record high is 39°C (2002) and the record low is -1°C (1982). August is one of the most comfortable months to visit.
Biysk weather in September
In September, Biysk averages a high of 18°C and a low of 5°C. It gets 42 mm of precipitation over about 11 rainy days. Estimated sunshine is 41% of daylight hours, derived from ERA5 cloud cover. The September record high is 37°C (2022) and the record low is -7°C (2004). September is one of the most comfortable months to visit.
Biysk weather in October
In October, Biysk averages a high of 10°C and a low of -1°C. It gets 49 mm of precipitation over about 13 rainy days. Estimated sunshine is 34% of daylight hours, derived from ERA5 cloud cover. The October record high is 28°C (1997) and the record low is -24°C (1976).
Biysk weather in November
In November, Biysk averages a high of -2°C and a low of -11°C. It gets 53 mm of precipitation over about 16 rainy days. Estimated sunshine is 25% of daylight hours, derived from ERA5 cloud cover. The November record high is 19°C (1978) and the record low is -44°C (1987).
Biysk weather in December
In December, Biysk averages a high of -8°C and a low of -18°C. It gets 41 mm of precipitation over about 16 rainy days. Estimated sunshine is 24% of daylight hours, derived from ERA5 cloud cover. The December record high is 11°C (1989) and the record low is -47°C (2012).
Sunshine, humidity and wind in Biysk
August is the sunniest month in Biysk, with estimated sunshine of 49% of daylight hours from ERA5 cloud cover. January is the cloudiest, at 24%. The annual cloud-cover estimate is 37% of daylight hours; it is not a measurement of sunshine duration. Biysk is sunnier than 68% of Russia.
Humidity peaks in January at 78% and is lowest in May at 44%.
Biysk has about 6 days a year above 32°C. Biysk is hotter than 74% of Russia.
First and last freeze in Biysk
The first fall freeze in Biysk typically comes around September 24, and the last spring freeze around May 19. That leaves a frost-free growing season of about 128 days.
Biysk weather records
These records cover BIJSK ZONALNAJA during 1970–2025. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Biysk station is 39°C, on July 15, 1992. The coldest is -52°C, on January 6, 2001.
The wettest day in the available station history brought 60 mm of precipitation, on June 18, 1970.
47 all-time records have been set at the station since 1970.
The annual mean temperature has changed by +0.2°C per decade since 1970.
The best time to visit Biysk
The most comfortable time to visit is typically May to June and August to September, when daytime highs sit near 22°C.
Winter (December–February) is cold, with average highs around -9°C and lows near -20°C.
Spring (March–May) is chilly, with average highs around 11°C and lows near -2°C.
Summer (June–August) is warm, with average highs around 26°C and lows near 12°C.
Autumn (September–November) is chilly, with average highs around 9°C and lows near -2°C.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | -22° | -11° | 30 mm | 14 | 78% | 24% | 7° | -52° |
| February | -20° | -7° | 24 mm | 10 | 75% | 31% | 10° | -46° |
| March | -12° | 1° | 26 mm | 11 | 71% | 28% | 17° | -43° |
| April | -1° | 12° | 40 mm | 11 | 56% | 46% | 34° | -25° |
| May | 6° | 21° | 57 mm | 12 | 44% | 47% | 37° | -8° |
| June | 12° | 25° | 55 mm | 11 | 54% | 44% | 37° | -1° |
| July | 14° | 27° | 70 mm | 13 | 57% | 47% | 39° | 1° |
| August | 11° | 25° | 53 mm | 11 | 60% | 49% | 39° | -1° |
| September | 5° | 18° | 42 mm | 11 | 63% | 41% | 37° | -7° |
| October | -1° | 10° | 49 mm | 13 | 70% | 34% | 28° | -24° |
| November | -11° | -2° | 53 mm | 16 | 76% | 25% | 19° | -44° |
| December | -18° | -8° | 41 mm | 16 | 77% | 24% | 11° | -47° |
Station: BIJSK ZONALNAJA, 23 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 1970–2025; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
Biysk climate questions
How much rain does Biysk get?
Biysk gets 540 mm of precipitation in an average year, over about 149 rainy days.
What is the wettest month in Biysk?
July is the wettest month in Biysk, with 70 mm. February is the driest, with 24 mm.
How many rainy days does Biysk have a year?
Biysk has about 149 days with measurable rain in an average year. December has the most, about 16.
What is the hottest month in Biysk?
July is the warmest month in Biysk, with an average high of 27°C.
What is the coldest month in Biysk?
January is the coldest month in Biysk, with an average low of -22°C.
What is the record high temperature in Biysk?
Within the available 1970–2025 station history, the record high at the Biysk station is 39°C, set on July 15, 1992. The record low is -52°C, on January 6, 2001.
What is the sunniest month in Biysk?
August is the sunniest month in Biysk, with estimated sunshine of 49% of daylight hours from ERA5 cloud cover. January is the cloudiest.
When is the first frost in Biysk?
The first fall freeze in Biysk typically comes around September 24. The last spring freeze is around May 19.
What is the best time to visit Biysk?
The most comfortable time to visit is typically May to June and August to September, when daytime highs sit near 22°C.