Biržai climate — normals and trends
Biržai (Lithuania) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 6.5 °C and it receives 696 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 (17.8 °C on average) and the coldest is January (-4.8 °C). Rainfall peaks in July.
Biržai averages 124 frost days, 1 hot days (≥ 30 °C) and 140 rainy days per year.
Biržai has warmed by +2.7 °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 147 to 101 per year over the period.
The hottest day of the period reached 33.5 °C (on 8 July 2006) and the coldest -37.0 °C (on 1 February 1956).
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
BiržaiPanevėžys
- coords
- 56.20°, 24.75°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
6.5°C
Average daily high
10.0°C
Average daily low
3.0°C
Annual rainfall
696mm
Sunshine / day
7.1h
Mean relative humidity
79%
Average peak wind
16.5km/h
Seasonal range
22.6°C
Frost days (< 0 °C)
124 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
140 d/yr
Annual snowfall
91.3 cm
Average feels-like high
7.1 °C
Average feels-like low
-0.2 °C
Average peak gust
35.7 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
9.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.7 °C
since 1940
+0.3 °C per decade · r² = 0.44 · 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
33.5 °C
8 July 2006
Coldest day
-37.0 °C
1 February 1956
Wettest day
54 mm
30 June 2020
Windiest day
47.1 km/h
14 January 1993
Strongest gust
104.0 km/h
18 October 1967
Hottest feels-like
37.0 °C
16 July 2021
Coldest feels-like
-42.1 °C
8 February 1956
Snowiest day
13.5 cm
15 April 2001
Sunniest day
17.0 h
18 June 1940
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 | 3.4 °C | +6.0 °C | 69 mm | +26 mm |
| Feb | -0.3 °C | +1.3 °C | 22 mm | -16 mm |
| Mar | 8.8 °C | +5.6 °C | 30 mm | -10 mm |
| Apr | 13.6 °C | +3.1 °C | 42 mm | -7 mm |
| May | 14.1 °C | -2.7 °C | 120 mm | +57 mm |
| Jun | 19.3 °C | -1.1 °C | 122 mm | +46 mm |
| Jul | 23.6 °C | +1.5 °C | 146 mm | +59 mm |
| Aug | 20.6 °C | -0.7 °C | 72 mm | -8 mm |
| Sep | 19.6 °C | +3.3 °C | 40 mm | -20 mm |
| Oct | 10.5 °C | +0.6 °C | 71 mm | +14 mm |
| Nov | 4.5 °C | +0.9 °C | 31 mm | -22 mm |
| Dec | 3.6 °C | +3.8 °C | 37 mm | -12 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 Biržai?
Biržai has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 6.5 °C and it receives 696 mm of precipitation per year.
What is the hottest day ever recorded in Biržai?
The hottest day measured in Biržai between 1940 and 2025 was 8 July 2006, reaching 33.5 °C.
What is the coldest day in Biržai?
The coldest day measured in Biržai between 1940 and 2025 was 1 February 1956, at -37.0 °C.
Does it snow in Biržai?
Yes. Biržai gets on average 91.3 cm of snow per year and has around 124 frost days.
Has the climate of Biržai warmed?
Yes: Biržai warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Biržai?
The wettest day measured in Biržai between 1940 and 2025 was 30 June 2020, with 54 mm of rain in 24 hours.
What was the windiest day in Biržai?
The windiest day measured in Biržai between 1940 and 2025 was 14 January 1993, with winds reaching 47.1 km/h.
What is the warmest month in Biržai?
The warmest month in Biržai is July (17.8 °C on average); the coldest is January (-4.8 °C).
How much does it rain in Biržai?
Biržai receives on average 696 mm of precipitation per year, spread over about 140 rainy days.
Is it sunny in Biržai?
Biržai gets on average 7.1 hours of sunshine per day, roughly 2,592 hours per year over 1940-2025.
What is the biggest single-day snowfall in Biržai?
The heaviest 24-hour snowfall measured in Biržai between 1940 and 2025 was 15 April 2001, with 13.5 cm.
Are there tropical nights in Biržai?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Biržai.
What was the most extreme apparent temperature in Biržai?
In Biržai, between 1940 and 2025, the highest apparent temperature reached 37.0 °C on 16 July 2021, and the lowest was -42.1 °C on 8 February 1956.
Compare Biržai with another city
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Nearby cities
The climate around Biržai