Islaz climate — normals and trends
Islaz (Romania) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 12.5 °C and it receives 608 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 (24.3 °C on average) and the coldest is January (-1.1 °C). Rainfall peaks in June.
Islaz averages 73 frost days, 44 hot days (≥ 30 °C) and 96 rainy days per year.
Islaz has warmed by +2.1 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.
The number of frost days there went from about 89 to 57 per year over the period.
The hottest day of the period reached 45.1 °C (on 5 July 2000) and the coldest -28.0 °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
IslazTeleorman County
- coords
- 43.72°, 24.76°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
12.5°C
Average daily high
17.2°C
Average daily low
8.2°C
Annual rainfall
608mm
Sunshine / day
9.2h
Mean relative humidity
73%
Average peak wind
15.6km/h
Seasonal range
25.4°C
Frost days (< 0 °C)
73 d/yr
Hot days (≥ 30 °C)
44 d/yr
Rainy days (≥ 1 mm)
96 d/yr
Annual snowfall
56.8 cm
Average feels-like high
15.8 °C
Average feels-like low
6.2 °C
Average peak gust
30.5 km/h
Tropical nights (≥ 20 °C)
25 d/yr
Solar radiation
14.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.2 °C per decade · r² = 0.39 · 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
45.1 °C
5 July 2000
Coldest day
-28.0 °C
25 January 1942
Wettest day
121 mm
3 July 2017
Windiest day
52.9 km/h
6 February 1969
Strongest gust
92.9 km/h
1 September 1978
Hottest feels-like
45.2 °C
5 July 2000
Coldest feels-like
-33.6 °C
25 January 1942
Snowiest day
23.9 cm
26 February 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 | 9.3 °C | +7.1 °C | 7 mm | -32 mm |
| Feb | 3.9 °C | -1.7 °C | 24 mm | -12 mm |
| Mar | 16.9 °C | +5.5 °C | 36 mm | -9 mm |
| Apr | 18.2 °C | +0.2 °C | 32 mm | -26 mm |
| May | 21.8 °C | -1.4 °C | 102 mm | +31 mm |
| Jun | 31.3 °C | +4.1 °C | 14 mm | -65 mm |
| Jul | 34.3 °C | +4.6 °C | 26 mm | -37 mm |
| Aug | 32.5 °C | +2.6 °C | 35 mm | -11 mm |
| Sep | 27.7 °C | +2.4 °C | 10 mm | -28 mm |
| Oct | 16.8 °C | -1.5 °C | 190 mm | +149 mm |
| Nov | 11.7 °C | +1.1 °C | 97 mm | +51 mm |
| Dec | 6.4 °C | +2.0 °C | 43 mm | -2 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 Islaz?
Islaz has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 12.5 °C and it receives 608 mm of precipitation per year.
What is the hottest day ever recorded in Islaz?
The hottest day measured in Islaz between 1940 and 2025 was 5 July 2000, reaching 45.1 °C.
What is the coldest day in Islaz?
The coldest day measured in Islaz between 1940 and 2025 was 25 January 1942, at -28.0 °C.
Does it snow in Islaz?
Yes. Islaz gets on average 56.8 cm of snow per year and has around 73 frost days.
Has the climate of Islaz warmed?
Yes: Islaz warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Islaz?
The wettest day measured in Islaz between 1940 and 2025 was 3 July 2017, with 121 mm of rain in 24 hours.
What was the windiest day in Islaz?
The windiest day measured in Islaz between 1940 and 2025 was 6 February 1969, with winds reaching 52.9 km/h.
What is the warmest month in Islaz?
The warmest month in Islaz is July (24.3 °C on average); the coldest is January (-1.1 °C).
How much does it rain in Islaz?
Islaz receives on average 608 mm of precipitation per year, spread over about 96 rainy days.
Is it sunny in Islaz?
Islaz 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 Islaz?
The heaviest 24-hour snowfall measured in Islaz between 1940 and 2025 was 26 February 1973, with 23.9 cm.
Are there tropical nights in Islaz?
Yes: Islaz has on average 25 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Islaz?
In Islaz, between 1940 and 2025, the highest apparent temperature reached 45.2 °C on 5 July 2000, and the lowest was -33.6 °C on 25 January 1942.
Compare Islaz with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Islaz