Ulmi climate — normals and trends
Ulmi (Romania) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 11.3 °C and it receives 666 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 (23.0 °C on average) and the coldest is January (-1.8 °C). Rainfall peaks in June.
Ulmi averages 87 frost days, 29 hot days (≥ 30 °C) and 105 rainy days per year.
Ulmi has warmed by +2.0 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The number of frost days there went from about 102 to 72 per year over the period.
The hottest day of the period reached 41.3 °C (on 26 June 2007) and the coldest -29.1 °C (on 25 January 1942).
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
UlmiGiurgiu County
- coords
- 44.49°, 25.78°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.3°C
Average daily high
16.0°C
Average daily low
7.1°C
Annual rainfall
666mm
Sunshine / day
8.9h
Mean relative humidity
75%
Average peak wind
14.6km/h
Seasonal range
24.8°C
Frost days (< 0 °C)
87 d/yr
Hot days (≥ 30 °C)
29 d/yr
Rainy days (≥ 1 mm)
105 d/yr
Annual snowfall
56.3 cm
Average feels-like high
14.6 °C
Average feels-like low
4.9 °C
Average peak gust
29.2 km/h
Tropical nights (≥ 20 °C)
12 d/yr
Solar radiation
13.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.35 · 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
41.3 °C
26 June 2007
Coldest day
-29.1 °C
25 January 1942
Wettest day
78 mm
3 July 2017
Windiest day
45.1 km/h
8 December 1945
Strongest gust
89.3 km/h
29 January 2007
Hottest feels-like
43.3 °C
21 July 1987
Coldest feels-like
-33.7 °C
25 January 1942
Snowiest day
22.1 cm
12 March 1973
Sunniest day
15.0 h
23 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 | 9.4 °C | +7.9 °C | 8 mm | -33 mm |
| Feb | 1.8 °C | -2.7 °C | 29 mm | -6 mm |
| Mar | 15.9 °C | +5.8 °C | 38 mm | -6 mm |
| Apr | 18.2 °C | +1.3 °C | 34 mm | -27 mm |
| May | 21.0 °C | -1.2 °C | 137 mm | +56 mm |
| Jun | 30.0 °C | +3.9 °C | 34 mm | -56 mm |
| Jul | 32.8 °C | +4.4 °C | 29 mm | -47 mm |
| Aug | 31.4 °C | +2.9 °C | 35 mm | -19 mm |
| Sep | 26.3 °C | +2.4 °C | 29 mm | -17 mm |
| Oct | 16.0 °C | -1.0 °C | 165 mm | +119 mm |
| Nov | 11.7 °C | +2.2 °C | 114 mm | +66 mm |
| Dec | 5.9 °C | +2.2 °C | 17 mm | -28 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 Ulmi?
Ulmi has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 11.3 °C and it receives 666 mm of precipitation per year.
What is the hottest day ever recorded in Ulmi?
The hottest day measured in Ulmi between 1940 and 2025 was 26 June 2007, reaching 41.3 °C.
What is the coldest day in Ulmi?
The coldest day measured in Ulmi between 1940 and 2025 was 25 January 1942, at -29.1 °C.
Does it snow in Ulmi?
Yes. Ulmi gets on average 56.3 cm of snow per year and has around 87 frost days.
Has the climate of Ulmi warmed?
Yes: Ulmi warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ulmi?
The wettest day measured in Ulmi between 1940 and 2025 was 3 July 2017, with 78 mm of rain in 24 hours.
What was the windiest day in Ulmi?
The windiest day measured in Ulmi between 1940 and 2025 was 8 December 1945, with winds reaching 45.1 km/h.
What is the warmest month in Ulmi?
The warmest month in Ulmi is July (23.0 °C on average); the coldest is January (-1.8 °C).
How much does it rain in Ulmi?
Ulmi receives on average 666 mm of precipitation per year, spread over about 105 rainy days.
Is it sunny in Ulmi?
Ulmi gets on average 8.9 hours of sunshine per day, roughly 3,249 hours per year over 1940-2025.
What is the biggest single-day snowfall in Ulmi?
The heaviest 24-hour snowfall measured in Ulmi between 1940 and 2025 was 12 March 1973, with 22.1 cm.
Are there tropical nights in Ulmi?
Yes: Ulmi has on average 12 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ulmi?
In Ulmi, between 1940 and 2025, the highest apparent temperature reached 43.3 °C on 21 July 1987, and the lowest was -33.7 °C on 25 January 1942.
Compare Ulmi with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ulmi