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Angarsk weather by month: averages, rainfall & climate trends

Angarsk swings through a wide annual range, with 40.6°C between the monthly means of its warmest and coldest months. This is a dry climate by most measures, though not a rainless one. Angarsk weather by month: average temperatures, rainfall, extremes and how the climate has changed since 1940.

Today vs average

+5.7°Chigh well above average

11° / −1°Today
5° / −5°Average
see today in detail →

How it's changed

+1.6°Caverage temperature, 2016–2025 vs 1940–1949average temperature vs 1940–49204frost days a year now (2016–2025) · 203 in the 1940sfrost days a year · 203 in the 1940s13days above 30°C a year now (2016–2025) · 3 in the 1940sdays above 30°C · 3 in the 1940s+1.6°C vs the 1940s · see how it's changed →
Weather by montha typical year, averaged over the full recordJanuary, rain 10 mmhigh −16°low −26°February, rain 8 mmhigh −11°low −24°March, rain 13 mmhigh −1°low −15°April, rain 24 mmhigh 9°low −3°May, rain 39 mmhigh 18°low 4°June, rain 67 mmhigh 24°low 11°July, rain 92 mmhigh 25°low 14°August, rain 83 mmhigh 23°low 12°September, rain 51 mmhigh 16°low 5°October, rain 24 mmhigh 7°low −4°November, rain 16 mmhigh −5°low −15°December, rain 15 mmhigh −14°low −23°wettest month July, 92 mm · 443 mm a yearsee month by month →

Right now

What it's doing today vs the historical average for this date.
Partly cloudy

Right now

8.2°

5°feels like
56%humidity
0°dew point
5 km/hfrom N
UV index0.1
sunrise07:40sunset17:57day length10h 17m
TodayClear11°−1°
ThuLight snow1°−1°
FriOvercast3°−3°
SatOvercast−1°−4°
SunOvercast1°−7°
MonOvercast−3°−5°
TueLight snow−1°−6°

On this date: October 21

Today (forecast)
11° / −1°
Average for October 21
5° / −5°

High well above average · +5.7°C

  • Highest since 1940: 14.9° · 2023
  • Lowest since 1940: −16.6° · 1964
  • One year ago: 5° / −8°

Every October 21 in history, coldest to hottest

▲ Daily highs▼ Daily lows

Dots show daily highs (top) and lows (bottom) for each October 21 on record (n = 86). Outlined dots are today's forecast.

Area we sample

Each city's history comes from one ERA5 grid cell, about 28 km across, shown by the dashed box. Near mountains or coasts, conditions can vary across the cell.

Location & data

Historical weather for Angarsk is sampled from the ECMWF ERA5 reanalysis at 52.56°N, 103.91°E, with daily records since 1940.

Coordinates
52.56°N, 103.91°E
Time zone
Asia/Irkutsk
Period
1940–2026
Data source
ERA5 (ECMWF)

Last 30 days

18 of the last 30 days were warmer than the historical average for that date. Average difference: +0.6°C.

Each bar is one day, from morning low to afternoon high. Warm-colored bars are days whose mean ran above average; cool bars ran below. The dot inside the bar is the daily mean. The shaded band is the typical 10–90% range expected for that date. Average = the day's mean temperature averaged across every year of record (1940–2026) for that calendar date.

This date over the years

One dot per year, showing the mean temperature on this calendar date. Dots are warmer or cooler than the long-term average (dashed line); the shaded band is the typical 10–90% range, and the highlighted dot is today's forecast. Based on ERA5 reanalysis: modelled estimates, not station readings.

Weather by month

Average temperatures and rainfall for each month: a typical year, from the full record.

Climate overview

The year peaks in July, at around 25.1°C by mid-afternoon, with nights around 14.1°C. In January, the coolest month, afternoons reach about −16.1°C and nights dip to −26.4°C. Around 205 days a year dip below freezing.

Angarsk picks up roughly 443 mm a year, with a peak of 92 mm in July and as little as 8 mm in February.

Over the full record (since 1940), the annual mean temperature in Angarsk has risen by 1.6°C between its first decade and its last. Days above 30°C have grown noticeably more frequent, from around 3 a year in the first decade to about 13 in the last.

Climate graph (climograph)

July is the warmest month, January the coolest: a yearly swing of 41°C. Wettest month: July (~92 mm). Whole year averages ~443 mm of rain.

Bars = average monthly rainfall (right axis). Lines = average daily high and low (left axis). Average = each month's value averaged across every year of record (1940–2026).

Rainy days by month

About 55 rainy days a year: most in July (~10), fewest in January (~1).

Bars = average number of days with ≥ 2 mm per month. Hover for the monthly rainfall total.

Monthly wind

Average daily peak wind at 10 m, by month.

Monthly solar energy

Average daily incoming solar energy in megajoules per square metre: the record's own proxy for how sunny the month is.

Angarsk month by month: what to expect

Typical conditions for each month, averaged across the full record (since 1940). Daylight is the time from sunrise to sunset. Highest and Lowest are the most extreme values in the ERA5 dataset (modelled since 1940), so they can differ from official weather-station readings.

MonthAvg highAvg lowRainRainy daysDaylightHighestLowest
January−16.1°−26.4°10 mm17.9 h1.2° (2002)−45.7° (2001)
February−10.8°−24.4°8 mm19.6 h6.6° (1987)−43.6° (2006)
March−0.8°−15.4°13 mm211.5 h20.6° (2025)−38.3° (1971)
April9.3°−3.0°24 mm313.7 h29.6° (2017)−28.5° (1984)
May17.7°4.1°39 mm615.5 h35.1° (1999)−5.9° (2001)
June23.8°11.1°67 mm916.6 h37.5° (1977)−1.4° (1992)
July25.1°14.1°92 mm1016.1 h36.0° (2024)4.8° (2011)
August22.5°11.7°83 mm914.5 h36.4° (2015)1.0° (1972)
September15.9°4.5°51 mm712.4 h31.4° (2022)−6.0° (1963)
October7.0°−3.7°24 mm410.3 h26.1° (1986)−20.4° (1969)
November−5.1°−14.7°16 mm28.4 h10.9° (2019)−39.1° (1962)
December−14.1°−23.5°15 mm27.4 h2.4° (2021)−44.1° (1968)

How it's changed

Year-by-year signals from 1940 to today.

Climate stripes

Annual mean shifted from 1940–1949 to 2016–2025 by +1.6°C.

Each vertical stripe is one year. Color encodes how much that year's annual mean differed from the long-term average. Average = each year's annual mean compared to the average of all years (1940–2026). cooler ← → warmer

Annual mean temperature

Long-term trend: +0.22°C per decade.

One point per year, showing the temperature averaged across the whole year. The dashed line is the least-squares long-term trend. Based on ERA5 reanalysis: modelled estimates, not station readings.

Seasonal warming

Mar–May is warming fastest: +0.33°C per decade.

Each faint line is one three-month period's average per year; the bold dashed line is its long-term trend. Different parts of the year often warm at different rates. Based on ERA5 reanalysis: modelled estimates, not station readings.

Hot days vs frost days

Days ≥ 30°C per year: 3.3 early in the record → 13.4 recently. Frost days: 203 → 204.

Thin lines are raw yearly counts; thick lines are the smoothed trend that removes year-to-year noise. The hot-day threshold is auto-picked per city so the line actually moves. Average = a centered 5-year rolling average to smooth weather noise.

Yearly hot & cold extremes

Hottest day since 1940 in 1977, coldest in 2001: 37.5°C / −45.7°C.

One point per year: the single hottest and coldest day recorded that year.

Annual rainfall

~443 mm/year on average. Last decade: −7% vs that average. Long-term trend: −2 mm per decade.

One bar per year of total rainfall. Dashed line is the long-term average. Average = the average annual rainfall across every year of record (1940–2026).

Day-by-day grid

Each tiny square is one calendar day across the full record, about 30,000 days per city. Use the mode switch above the chart: Anomaly colors each day by how far it ran from the historical average for that date (red = warmer, blue = cooler), Daily mean temp shows the absolute mean temperature for the day (useful to see seasons and heatwaves), and Precipitation shows daily rainfall (useful to spot wet/dry seasons and droughts). Average = the long-term average for that calendar date (1940–2026).

Frequently asked questions about Angarsk

Which is the warmest month in Angarsk?
On long-term average, the warmest month in Angarsk is July (mean daily temperature of about 19.5°C) and the coolest is January (about −21.1°C).
How does today's temperature in Angarsk compare to the historical average?
On October 21, 2026, Angarsk is forecast to reach a high of 10.8°C and a low of −0.6°C. The long-term average for this date (the full record since 1940) is a high of 5.1°C and a low of −4.8°C, so today's high is 5.7°C warmer than that average.
How much has Angarsk warmed since 1940?
Comparing the first decade of the record (1940–1949) with the most recent (2016–2025), the annual mean temperature in Angarsk is about 1.6°C warmer.
How much does it rain in Angarsk?
Angarsk receives about 443 mm of precipitation per year on long-term average, with July typically the wettest month.
What is the average temperature in Angarsk?
Over the full record (since 1940), the annual mean temperature in Angarsk is about 0.5°C. The warmest month is July and the coolest is January.
What are the average temperatures in Angarsk by month?
Average daily highs and lows for each month in Angarsk (°C, full record since 1940): January −16°/−26°, February −11°/−24°, March −1°/−15°, April 9°/−3°, May 18°/4°, June 24°/11°, July 25°/14°, August 23°/12°, September 16°/5°, October 7°/−4°, November −5°/−15°, December −14°/−23°.
What is the weather like in Angarsk in summer?
June to August is summer in Angarsk, and it is pleasantly warm. Expect 23–25°C by day and 11–14°C at night, with July the warmest month. Rain falls on about 9 days a month, adding up to around 81 mm. It is the wettest season of the year.
What is the weather like in Angarsk in winter?
In winter, December through February, Angarsk is freezing. Daytime highs sit at −16 to −11°C and nights at −26 to −23°C; January is the coldest month. Precipitation, mostly snow, falls off from 15 mm on 2 days in December to 8 mm on 1 day in February. It is the driest season of the year.
What is the weather like in Angarsk in spring?
March to May is spring in Angarsk, and it is on the cool side. March is still −1°C in the afternoon and −15°C at night, May already 18°C and 4°C. Rain and snow pick up through the season: 13 mm on 2 days in March, 39 mm on 6 days in May.
What is the weather like in Angarsk in autumn?
Autumn in Angarsk (September to November) is cold. It cools from 16°C by day and 5°C at night in September to −5°C and −15°C in November. Rain and snow fall off from 51 mm on 7 days in September to 16 mm on 2 days in November.
How many days a year does it rain in Angarsk?
On long-term average, Angarsk has about 55 days a year with at least 2 mm of rain or snow. The annual total is roughly 443 mm.

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