Jonava climate — normals and trends
Jonava (Lithuania) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 6.9 °C and it receives 680 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 (18.0 °C on average) and the coldest is January (-4.4 °C). Rainfall peaks in July.
Jonava averages 116 frost days, 2 hot days (≥ 30 °C) and 138 rainy days per year.
Jonava 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 138 to 94 per year over the period.
The hottest day of the period reached 34.4 °C (on 10 August 1992) and the coldest -36.6 °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
JonavaKaunas
- coords
- 55.08°, 24.28°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
6.9°C
Average daily high
10.3°C
Average daily low
3.5°C
Annual rainfall
680mm
Sunshine / day
7.0h
Mean relative humidity
79%
Average peak wind
17.6km/h
Seasonal range
22.4°C
Frost days (< 0 °C)
116 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
138 d/yr
Annual snowfall
83.3 cm
Average feels-like high
7.5 °C
Average feels-like low
0.2 °C
Average peak gust
36.1 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
9.8 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
34.4 °C
10 August 1992
Coldest day
-36.6 °C
1 February 1956
Wettest day
60 mm
9 August 2005
Windiest day
49.5 km/h
14 January 1993
Strongest gust
103.3 km/h
22 January 1956
Hottest feels-like
37.0 °C
16 July 2021
Coldest feels-like
-41.7 °C
1 February 1956
Snowiest day
15.1 cm
26 January 2021
Sunniest day
17.0 h
27 June 2010
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 | 3.5 °C | +5.7 °C | 46 mm | +2 mm |
| Feb | 0.3 °C | +1.4 °C | 27 mm | -10 mm |
| Mar | 9.6 °C | +6.0 °C | 46 mm | +6 mm |
| Apr | 15.0 °C | +4.1 °C | 22 mm | -26 mm |
| May | 14.5 °C | -2.6 °C | 70 mm | +9 mm |
| Jun | 20.0 °C | -0.6 °C | 119 mm | +45 mm |
| Jul | 23.5 °C | +1.2 °C | 160 mm | +75 mm |
| Aug | 21.3 °C | -0.3 °C | 48 mm | -31 mm |
| Sep | 19.6 °C | +2.9 °C | 64 mm | +8 mm |
| Oct | 10.8 °C | +0.4 °C | 99 mm | +45 mm |
| Nov | 4.6 °C | +0.6 °C | 62 mm | +10 mm |
| Dec | 3.5 °C | +3.3 °C | 30 mm | -19 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 Jonava?
Jonava has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 6.9 °C and it receives 680 mm of precipitation per year.
What is the hottest day ever recorded in Jonava?
The hottest day measured in Jonava between 1940 and 2025 was 10 August 1992, reaching 34.4 °C.
What is the coldest day in Jonava?
The coldest day measured in Jonava between 1940 and 2025 was 1 February 1956, at -36.6 °C.
Does it snow in Jonava?
Yes. Jonava gets on average 83.3 cm of snow per year and has around 116 frost days.
Has the climate of Jonava warmed?
Yes: Jonava warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Jonava?
The wettest day measured in Jonava between 1940 and 2025 was 9 August 2005, with 60 mm of rain in 24 hours.
What was the windiest day in Jonava?
The windiest day measured in Jonava between 1940 and 2025 was 14 January 1993, with winds reaching 49.5 km/h.
What is the warmest month in Jonava?
The warmest month in Jonava is July (18.0 °C on average); the coldest is January (-4.4 °C).
How much does it rain in Jonava?
Jonava receives on average 680 mm of precipitation per year, spread over about 138 rainy days.
Is it sunny in Jonava?
Jonava gets on average 7.0 hours of sunshine per day, roughly 2,555 hours per year over 1940-2025.
What is the biggest single-day snowfall in Jonava?
The heaviest 24-hour snowfall measured in Jonava between 1940 and 2025 was 26 January 2021, with 15.1 cm.
Are there tropical nights in Jonava?
Yes: Jonava has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Jonava?
In Jonava, between 1940 and 2025, the highest apparent temperature reached 37.0 °C on 16 July 2021, and the lowest was -41.7 °C on 1 February 1956.
Compare Jonava with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Jonava