Kotlas climate — normals and trends
Kotlas (Russia) has a subarctic climate (Dfc) under the Köppen-Geiger classification. Its mean annual temperature is 1.9 °C and it receives 611 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (17.4 °C on average) and the coldest is January (-13.8 °C). Rainfall peaks in July.
Kotlas averages 189 frost days, 2 hot days (≥ 30 °C) and 135 rainy days per year.
Kotlas has warmed by +2.6 °C between 1940 and 2025, or +0.31 °C per decade. This trend is statistically significant.
The number of frost days there went from about 199 to 179 per year over the period.
The hottest day of the period reached 35.5 °C (on 8 July 2020) and the coldest -47.6 °C (on 30 December 1978).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
KotlasArkhangelskaya oblast
- coords
- 61.26°, 46.65°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
1.9°C
Average daily high
5.4°C
Average daily low
-2.0°C
Annual rainfall
611mm
Sunshine / day
6.3h
Mean relative humidity
78%
Average peak wind
15.1km/h
Seasonal range
31.2°C
Frost days (< 0 °C)
189 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
135 d/yr
Annual snowfall
152.9 cm
Average feels-like high
2.1 °C
Average feels-like low
-5.7 °C
Average peak gust
33.8 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
8.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.6 °C
since 1940
+0.3 °C per decade · r² = 0.37 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
35.5 °C
8 July 2020
Coldest day
-47.6 °C
30 December 1978
Wettest day
58 mm
10 July 2016
Windiest day
37.9 km/h
14 March 1972
Strongest gust
89.3 km/h
20 April 1994
Hottest feels-like
36.8 °C
6 August 2010
Coldest feels-like
-52.7 °C
30 December 1978
Snowiest day
14.8 cm
29 November 1983
Sunniest day
18.0 h
2 July 2024
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | -3.0 °C | +7.9 °C | 78 mm | +46 mm |
| Feb | -4.7 °C | +3.9 °C | 22 mm | -6 mm |
| Mar | 3.5 °C | +5.1 °C | 42 mm | +9 mm |
| Apr | 6.6 °C | +0.3 °C | 69 mm | +29 mm |
| May | 16.7 °C | +2.9 °C | 60 mm | +4 mm |
| Jun | 19.6 °C | +0.2 °C | 59 mm | -7 mm |
| Jul | 23.2 °C | +1.2 °C | 53 mm | -22 mm |
| Aug | 20.9 °C | +1.8 °C | 134 mm | +64 mm |
| Sep | 15.7 °C | +3.2 °C | 41 mm | -22 mm |
| Oct | 7.2 °C | +3.0 °C | 38 mm | -24 mm |
| Nov | 1.2 °C | +4.3 °C | 93 mm | +47 mm |
| Dec | -5.6 °C | +2.3 °C | 50 mm | +10 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Kotlas?
Kotlas has a subarctic climate (Köppen Dfc). Over 1940-2025, the average annual temperature is 1.9 °C and it receives 611 mm of precipitation per year.
What is the hottest day ever recorded in Kotlas?
The hottest day measured in Kotlas between 1940 and 2025 was 8 July 2020, reaching 35.5 °C.
What is the coldest day in Kotlas?
The coldest day measured in Kotlas between 1940 and 2025 was 30 December 1978, at -47.6 °C.
Does it snow in Kotlas?
Yes. Kotlas gets on average 152.9 cm of snow per year and has around 189 frost days.
Has the climate of Kotlas warmed?
Yes: Kotlas warmed by +2.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kotlas?
The wettest day measured in Kotlas between 1940 and 2025 was 10 July 2016, with 58 mm of rain in 24 hours.
What was the windiest day in Kotlas?
The windiest day measured in Kotlas between 1940 and 2025 was 14 March 1972, with winds reaching 37.9 km/h.
What is the warmest month in Kotlas?
The warmest month in Kotlas is July (17.4 °C on average); the coldest is January (-13.8 °C).
How much does it rain in Kotlas?
Kotlas receives on average 611 mm of precipitation per year, spread over about 135 rainy days.
Is it sunny in Kotlas?
Kotlas gets on average 6.3 hours of sunshine per day, roughly 2,300 hours per year over 1940-2025.
What is the biggest single-day snowfall in Kotlas?
The heaviest 24-hour snowfall measured in Kotlas between 1940 and 2025 was 29 November 1983, with 14.8 cm.
Are there tropical nights in Kotlas?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Kotlas.
What was the most extreme apparent temperature in Kotlas?
In Kotlas, between 1940 and 2025, the highest apparent temperature reached 36.8 °C on 6 August 2010, and the lowest was -52.7 °C on 30 December 1978.
Compare Kotlas with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Kotlas