Novo Mesto climate — normals and trends
Novo Mesto (Slovenia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.0 °C and it receives 1,149 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 (20.0 °C on average) and the coldest is January (-0.7 °C). Rainfall peaks in June.
Novo Mesto averages 86 frost days, 10 hot days (≥ 30 °C) and 140 rainy days per year.
Novo Mesto has warmed by +2.7 °C between 1940 and 2025, or +0.32 °C per decade. This trend is statistically significant.
The number of frost days there went from about 105 to 67 per year over the period.
The hottest day of the period reached 37.7 °C (on 4 August 2017) and the coldest -29.7 °C (on 15 February 1940).
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
Novo MestoUrban Municipality of Novo Mesto
- coords
- 45.80°, 15.17°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.0°C
Average daily high
14.4°C
Average daily low
6.0°C
Annual rainfall
1,149mm
Sunshine / day
8.2h
Mean relative humidity
79%
Average peak wind
10.0km/h
Seasonal range
20.7°C
Frost days (< 0 °C)
86 d/yr
Hot days (≥ 30 °C)
10 d/yr
Rainy days (≥ 1 mm)
140 d/yr
Annual snowfall
117.8 cm
Average feels-like high
13.3 °C
Average feels-like low
4.1 °C
Average peak gust
29.8 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
12.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.7 °C
since 1940
+0.3 °C per decade · r² = 0.59 · 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
37.7 °C
4 August 2017
Coldest day
-29.7 °C
15 February 1940
Wettest day
71 mm
15 July 1972
Windiest day
33.8 km/h
30 March 1995
Strongest gust
91.1 km/h
10 February 1984
Hottest feels-like
40.1 °C
4 August 2017
Coldest feels-like
-34.5 °C
15 February 1940
Snowiest day
30.0 cm
10 February 1999
Sunniest day
14.9 h
22 June 2025
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 | 6.9 °C | +4.4 °C | 69 mm | +5 mm |
| Feb | 5.5 °C | +0.4 °C | 73 mm | +3 mm |
| Mar | 13.2 °C | +3.3 °C | 152 mm | +73 mm |
| Apr | 17.5 °C | +2.6 °C | 92 mm | -6 mm |
| May | 19.4 °C | 0.0 °C | 117 mm | +4 mm |
| Jun | 28.4 °C | +5.4 °C | 18 mm | -104 mm |
| Jul | 27.0 °C | +1.8 °C | 161 mm | +50 mm |
| Aug | 26.4 °C | +1.5 °C | 62 mm | -43 mm |
| Sep | 22.2 °C | +1.5 °C | 96 mm | -8 mm |
| Oct | 15.5 °C | +0.5 °C | 118 mm | +23 mm |
| Nov | 9.9 °C | +1.3 °C | 117 mm | +11 mm |
| Dec | 5.2 °C | +1.3 °C | 52 mm | -33 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 Novo Mesto?
Novo Mesto has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 10.0 °C and it receives 1,149 mm of precipitation per year.
What is the hottest day ever recorded in Novo Mesto?
The hottest day measured in Novo Mesto between 1940 and 2025 was 4 August 2017, reaching 37.7 °C.
What is the coldest day in Novo Mesto?
The coldest day measured in Novo Mesto between 1940 and 2025 was 15 February 1940, at -29.7 °C.
Does it snow in Novo Mesto?
Yes. Novo Mesto gets on average 117.8 cm of snow per year and has around 86 frost days.
Has the climate of Novo Mesto warmed?
Yes: Novo Mesto warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Novo Mesto?
The wettest day measured in Novo Mesto between 1940 and 2025 was 15 July 1972, with 71 mm of rain in 24 hours.
What was the windiest day in Novo Mesto?
The windiest day measured in Novo Mesto between 1940 and 2025 was 30 March 1995, with winds reaching 33.8 km/h.
What is the warmest month in Novo Mesto?
The warmest month in Novo Mesto is July (20.0 °C on average); the coldest is January (-0.7 °C).
How much does it rain in Novo Mesto?
Novo Mesto receives on average 1,149 mm of precipitation per year, spread over about 140 rainy days.
Is it sunny in Novo Mesto?
Novo Mesto gets on average 8.2 hours of sunshine per day, roughly 2,993 hours per year over 1940-2025.
What is the biggest single-day snowfall in Novo Mesto?
The heaviest 24-hour snowfall measured in Novo Mesto between 1940 and 2025 was 10 February 1999, with 30.0 cm.
Are there tropical nights in Novo Mesto?
Yes: Novo Mesto has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Novo Mesto?
In Novo Mesto, between 1940 and 2025, the highest apparent temperature reached 40.1 °C on 4 August 2017, and the lowest was -34.5 °C on 15 February 1940.
Compare Novo Mesto with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Novo Mesto