Petroşani climate — normals and trends
Petroşani (Romania) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 6.6 °C and it receives 1,080 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 (16.2 °C on average) and the coldest is January (-4.2 °C). Rainfall peaks in June.
Petroşani averages 133 frost days, 1 hot days (≥ 30 °C) and 167 rainy days per year.
Petroşani has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The number of frost days there went from about 149 to 117 per year over the period.
The hottest day of the period reached 32.9 °C (on 23 July 2022) and the coldest -27.4 °C (on 13 February 2004).
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
PetroşaniHunedoara County
- coords
- 45.42°, 23.37°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
6.6°C
Average daily high
11.1°C
Average daily low
2.5°C
Annual rainfall
1,080mm
Sunshine / day
9.2h
Mean relative humidity
81%
Average peak wind
8.9km/h
Seasonal range
20.4°C
Frost days (< 0 °C)
133 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
167 d/yr
Annual snowfall
148.3 cm
Average feels-like high
9.5 °C
Average feels-like low
0.2 °C
Average peak gust
31.5 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
13.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.3 °C per decade · r² = 0.50 · 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
32.9 °C
23 July 2022
Coldest day
-27.4 °C
13 February 2004
Wettest day
86 mm
26 June 1996
Windiest day
27.8 km/h
17 January 1992
Strongest gust
109.4 km/h
18 February 1946
Hottest feels-like
36.7 °C
6 July 1988
Coldest feels-like
-32.2 °C
13 February 2004
Snowiest day
24.1 cm
6 February 1969
Sunniest day
15.0 h
12 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 | 5.0 °C | +5.6 °C | 26 mm | -30 mm |
| Feb | 1.7 °C | +0.4 °C | 22 mm | -36 mm |
| Mar | 11.0 °C | +5.5 °C | 116 mm | +49 mm |
| Apr | 12.8 °C | +1.5 °C | 93 mm | -10 mm |
| May | 13.8 °C | -2.3 °C | 149 mm | +4 mm |
| Jun | 23.3 °C | +3.9 °C | 26 mm | -126 mm |
| Jul | 23.8 °C | +2.4 °C | 134 mm | +3 mm |
| Aug | 23.3 °C | +1.6 °C | 90 mm | -9 mm |
| Sep | 19.5 °C | +1.7 °C | 37 mm | -37 mm |
| Oct | 9.8 °C | -2.7 °C | 96 mm | +33 mm |
| Nov | 8.5 °C | +2.4 °C | 107 mm | +41 mm |
| Dec | 3.9 °C | +2.7 °C | 21 mm | -44 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 Petroşani?
Petroşani has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 6.6 °C and it receives 1,080 mm of precipitation per year.
What is the hottest day ever recorded in Petroşani?
The hottest day measured in Petroşani between 1940 and 2025 was 23 July 2022, reaching 32.9 °C.
What is the coldest day in Petroşani?
The coldest day measured in Petroşani between 1940 and 2025 was 13 February 2004, at -27.4 °C.
Does it snow in Petroşani?
Yes. Petroşani gets on average 148.3 cm of snow per year and has around 133 frost days.
Has the climate of Petroşani warmed?
Yes: Petroşani warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Petroşani?
The wettest day measured in Petroşani between 1940 and 2025 was 26 June 1996, with 86 mm of rain in 24 hours.
What was the windiest day in Petroşani?
The windiest day measured in Petroşani between 1940 and 2025 was 17 January 1992, with winds reaching 27.8 km/h.
What is the warmest month in Petroşani?
The warmest month in Petroşani is July (16.2 °C on average); the coldest is January (-4.2 °C).
How much does it rain in Petroşani?
Petroşani receives on average 1,080 mm of precipitation per year, spread over about 167 rainy days.
Is it sunny in Petroşani?
Petroşani gets on average 9.2 hours of sunshine per day, roughly 3,358 hours per year over 1940-2025.
What is the biggest single-day snowfall in Petroşani?
The heaviest 24-hour snowfall measured in Petroşani between 1940 and 2025 was 6 February 1969, with 24.1 cm.
Are there tropical nights in Petroşani?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Petroşani.
What was the most extreme apparent temperature in Petroşani?
In Petroşani, between 1940 and 2025, the highest apparent temperature reached 36.7 °C on 6 July 1988, and the lowest was -32.2 °C on 13 February 2004.
Compare Petroşani with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Petroşani