Iwye climate — normals and trends
Iwye (Belarus) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 6.5 °C and it receives 690 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 (17.9 °C on average) and the coldest is January (-5.3 °C). Rainfall peaks in July.
Iwye averages 129 frost days, 2 hot days (≥ 30 °C) and 138 rainy days per year.
Iwye has warmed by +2.8 °C between 1940 and 2025, or +0.33 °C per decade. This trend is statistically significant.
The number of frost days there went from about 150 to 108 per year over the period.
The hottest day of the period reached 34.1 °C (on 10 August 1992) and the coldest -34.9 °C (on 12 January 1950).
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
IwyeGrodnenskaya
- coords
- 53.93°, 25.78°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
6.5°C
Average daily high
10.0°C
Average daily low
2.9°C
Annual rainfall
690mm
Sunshine / day
6.9h
Mean relative humidity
80%
Average peak wind
18.4km/h
Seasonal range
23.2°C
Frost days (< 0 °C)
129 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
138 d/yr
Annual snowfall
96.4 cm
Average feels-like high
7.1 °C
Average feels-like low
-0.5 °C
Average peak gust
35.9 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.8 °C
since 1940
+0.3 °C per decade · r² = 0.48 · 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
34.1 °C
10 August 1992
Coldest day
-34.9 °C
12 January 1950
Wettest day
70 mm
16 June 1985
Windiest day
56.0 km/h
18 January 1955
Strongest gust
100.4 km/h
29 July 2024
Hottest feels-like
36.3 °C
24 June 2021
Coldest feels-like
-40.1 °C
11 January 1950
Snowiest day
16.2 cm
26 January 2021
Sunniest day
16.3 h
27 June 2024
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 3.1 °C | +6.2 °C | 38 mm | -5 mm |
| Feb | -0.5 °C | +1.4 °C | 16 mm | -23 mm |
| Mar | 9.9 °C | +6.9 °C | 39 mm | -1 mm |
| Apr | 14.7 °C | +3.8 °C | 24 mm | -26 mm |
| May | 14.5 °C | -2.8 °C | 105 mm | +37 mm |
| Jun | 20.3 °C | -0.5 °C | 106 mm | +29 mm |
| Jul | 23.3 °C | +1.0 °C | 215 mm | +126 mm |
| Aug | 21.7 °C | -0.1 °C | 53 mm | -20 mm |
| Sep | 19.4 °C | +2.8 °C | 41 mm | -19 mm |
| Oct | 10.1 °C | +0.1 °C | 88 mm | +35 mm |
| Nov | 4.8 °C | +1.4 °C | 53 mm | +3 mm |
| Dec | 2.7 °C | +3.4 °C | 31 mm | -17 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 Iwye?
Iwye has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 6.5 °C and it receives 690 mm of precipitation per year.
What is the hottest day ever recorded in Iwye?
The hottest day measured in Iwye between 1940 and 2025 was 10 August 1992, reaching 34.1 °C.
What is the coldest day in Iwye?
The coldest day measured in Iwye between 1940 and 2025 was 12 January 1950, at -34.9 °C.
Does it snow in Iwye?
Yes. Iwye gets on average 96.4 cm of snow per year and has around 129 frost days.
Has the climate of Iwye warmed?
Yes: Iwye warmed by +2.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Iwye?
The wettest day measured in Iwye between 1940 and 2025 was 16 June 1985, with 70 mm of rain in 24 hours.
What was the windiest day in Iwye?
The windiest day measured in Iwye between 1940 and 2025 was 18 January 1955, with winds reaching 56.0 km/h.
What is the warmest month in Iwye?
The warmest month in Iwye is July (17.9 °C on average); the coldest is January (-5.3 °C).
How much does it rain in Iwye?
Iwye receives on average 690 mm of precipitation per year, spread over about 138 rainy days.
Is it sunny in Iwye?
Iwye gets on average 6.9 hours of sunshine per day, roughly 2,519 hours per year over 1940-2025.
What is the biggest single-day snowfall in Iwye?
The heaviest 24-hour snowfall measured in Iwye between 1940 and 2025 was 26 January 2021, with 16.2 cm.
Are there tropical nights in Iwye?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Iwye.
What was the most extreme apparent temperature in Iwye?
In Iwye, between 1940 and 2025, the highest apparent temperature reached 36.3 °C on 24 June 2021, and the lowest was -40.1 °C on 11 January 1950.
Compare Iwye with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Iwye