Castiglione del Lago climate — normals and trends

Q: What is the climate of Castiglione del Lago?

Castiglione del Lago has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 13.4 °C and it receives 908 mm of precipitation per year.

Q: What is the hottest day ever recorded in Castiglione del Lago?

The hottest day measured in Castiglione del Lago between 1940 and 2025 was 4 August 2017, reaching 38.0 °C.

Q: What is the coldest day in Castiglione del Lago?

The coldest day measured in Castiglione del Lago between 1940 and 2025 was 24 January 1942, at -16.2 °C.

Q: Does it snow in Castiglione del Lago?

Yes. Castiglione del Lago gets on average 16.5 cm of snow per year and has around 28 frost days.

Q: Has the climate of Castiglione del Lago warmed?

Yes: Castiglione del Lago warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Castiglione del Lago?

The wettest day measured in Castiglione del Lago between 1940 and 2025 was 30 July 2010, with 81 mm of rain in 24 hours.

Q: What was the windiest day in Castiglione del Lago?

The windiest day measured in Castiglione del Lago between 1940 and 2025 was 29 October 2018, with winds reaching 40.2 km/h.

Q: What is the warmest month in Castiglione del Lago?

The warmest month in Castiglione del Lago is July (23.1 °C on average); the coldest is January (4.4 °C).

Q: How much does it rain in Castiglione del Lago?

Castiglione del Lago receives on average 908 mm of precipitation per year, spread over about 118 rainy days.

Q: Is it sunny in Castiglione del Lago?

Castiglione del Lago gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.

Castiglione del Lago (Italy) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 13.4 °C and it receives 908 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 (23.1 °C on average) and the coldest is January (4.4 °C). Rainfall peaks in November.

Castiglione del Lago averages 28 frost days, 27 hot days (≥ 30 °C) and 118 rainy days per year.

Castiglione del Lago has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.

The number of frost days there went from about 41 to 15 per year over the period.

The hottest day of the period reached 38.0 °C (on 4 August 2017) and the coldest -16.2 °C (on 24 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

Castiglione del LagoUmbria

coords: 43.12°, 12.04°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthJulyColdest monthJanuaryWettest monthNovemberDriest monthJuly

Mean daily temperature

13.4°C

Average daily high

17.9°C

Average daily low

9.5°C

Annual rainfall

908mm

Sunshine / day

9.6h

Mean relative humidity

75%

Average peak wind

13.2km/h

Seasonal range

18.7°C

Frost days (< 0 °C)

28 d/yr

Hot days (≥ 30 °C)

27 d/yr

Rainy days (≥ 1 mm)

118 d/yr

Annual snowfall

16.5 cm

Average feels-like high

16.8 °C

Average feels-like low

8.2 °C

Average peak gust

32.0 km/h

Tropical nights (≥ 20 °C)

13 d/yr

Solar radiation

14.7 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.8 °C

since 1940

+0.2 °C per decade · r² = 0.47 · p = < 0.001

19402025

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

38.0 °C

4 August 2017

Coldest day

-16.2 °C

24 January 1942

Wettest day

81 mm

30 July 2010

Windiest day

40.2 km/h

29 October 2018

Strongest gust

109.1 km/h

29 October 2018

Hottest feels-like

40.8 °C

1 August 2017

Coldest feels-like

-20.4 °C

24 January 1942

Snowiest day

17.7 cm

23 January 1940

Sunniest day

14.7 h

3 July 1950

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	36.1 °C12 August 2025	-1.4 °C15 January 2025	15.0 °C	877 mm	53	3
2024	37.4 °C11 August 2024	-1.5 °C23 November 2024	15.4 °C	971 mm	61	3
2023	35.3 °C18 July 2023	-2.7 °C11 February 2023	15.2 °C	1,010 mm	44	11
2022	36.4 °C27 June 2022	-2.3 °C2 February 2022	15.1 °C	888 mm	57	16
2021	36.0 °C12 August 2021	-6.0 °C15 February 2021	14.3 °C	775 mm	44	18
2020	36.4 °C1 August 2020	-0.9 °C13 January 2020	14.5 °C	943 mm	40	7
2019	35.3 °C11 August 2019	-4.1 °C4 January 2019	14.7 °C	981 mm	51	18
2018	33.3 °C31 July 2018	-9.9 °C28 February 2018	14.6 °C	1,071 mm	28	14
2017	38.0 °C4 August 2017	-5.2 °C7 January 2017	14.4 °C	651 mm	57	23
2016	32.0 °C11 July 2016	-2.1 °C18 December 2016	14.3 °C	1,117 mm	30	10
2015	34.9 °C21 July 2015	-2.3 °C1 January 2015	14.5 °C	778 mm	46	11
2014	31.1 °C19 July 2014	-1.7 °C27 December 2014	14.5 °C	1,232 mm	8	7
2013	35.3 °C6 August 2013	-2.4 °C19 December 2013	13.8 °C	1,034 mm	26	23
2012	36.1 °C1 July 2012	-6.3 °C15 February 2012	14.5 °C	813 mm	67	36
2011	34.6 °C22 August 2011	-3.1 °C24 January 2011	14.3 °C	680 mm	31	16
2010	35.6 °C16 July 2010	-6.8 °C17 December 2010	13.4 °C	1,322 mm	27	28
2009	34.1 °C22 August 2009	-5.3 °C20 December 2009	14.1 °C	903 mm	41	17
2008	34.0 °C2 August 2008	-4.5 °C18 February 2008	14.0 °C	999 mm	51	14
2007	35.3 °C18 July 2007	-2.7 °C30 December 2007	14.1 °C	608 mm	33	11
2006	35.0 °C21 July 2006	-5.0 °C26 January 2006	13.8 °C	649 mm	39	30
2005	36.6 °C29 July 2005	-7.1 °C2 March 2005	12.8 °C	1,031 mm	24	56
2004	34.5 °C24 July 2004	-6.3 °C31 January 2004	13.7 °C	1,061 mm	27	25
2003	36.6 °C13 August 2003	-4.5 °C3 February 2003	14.4 °C	652 mm	74	32
2002	33.6 °C23 June 2002	-5.4 °C2 January 2002	14.0 °C	1,002 mm	22	21
2001	34.6 °C2 August 2001	-10.2 °C25 December 2001	13.9 °C	686 mm	31	18
2000	34.9 °C26 August 2000	-4.7 °C27 January 2000	14.2 °C	896 mm	24	16
1999	33.8 °C10 August 1999	-4.7 °C14 February 1999	13.9 °C	871 mm	20	29
1998	34.5 °C11 August 1998	-3.5 °C26 December 1998	13.8 °C	880 mm	47	19
1997	32.2 °C23 July 1997	-0.8 °C3 February 1997	13.9 °C	857 mm	11	3
1996	30.4 °C11 June 1996	-10.6 °C30 December 1996	13.0 °C	1,105 mm	6	27
1995	33.6 °C23 July 1995	-5.3 °C29 March 1995	13.0 °C	841 mm	10	20
1994	34.4 °C23 August 1994	-3.3 °C15 February 1994	14.2 °C	569 mm	45	18
1993	35.0 °C5 August 1993	-7.3 °C24 February 1993	13.2 °C	662 mm	33	44
1992	32.6 °C8 August 1992	-5.0 °C20 February 1992	13.3 °C	885 mm	24	26
1991	32.3 °C21 July 1991	-11.0 °C7 February 1991	12.6 °C	881 mm	27	48
1990	32.6 °C22 July 1990	-3.4 °C8 December 1990	13.5 °C	790 mm	17	24
1989	31.7 °C24 July 1989	-3.3 °C4 January 1989	13.0 °C	752 mm	13	29
1988	33.8 °C23 July 1988	-3.5 °C11 January 1988	13.5 °C	709 mm	31	25
1987	33.4 °C23 July 1987	-7.2 °C9 January 1987	13.2 °C	956 mm	25	36
1986	31.8 °C3 August 1986	-6.6 °C11 February 1986	13.0 °C	936 mm	17	40
1985	34.0 °C16 August 1985	-13.3 °C11 January 1985	13.2 °C	686 mm	35	35
1984	32.5 °C4 August 1984	-3.4 °C21 February 1984	12.4 °C	1,058 mm	11	29
1983	35.6 °C27 July 1983	-4.6 °C24 February 1983	12.9 °C	780 mm	19	42
1982	33.5 °C25 June 1982	-5.4 °C23 February 1982	13.4 °C	892 mm	20	25
1981	34.2 °C3 August 1981	-8.7 °C15 January 1981	12.8 °C	830 mm	8	51
1980	34.3 °C3 August 1980	-7.2 °C6 December 1980	12.2 °C	1,064 mm	13	29
1979	32.2 °C5 August 1979	-9.9 °C3 January 1979	13.0 °C	1,127 mm	11	25
1978	32.1 °C14 July 1978	-3.0 °C9 January 1978	12.5 °C	1,075 mm	9	24
1977	30.8 °C13 July 1977	-2.9 °C19 December 1977	13.2 °C	959 mm	3	17
1976	31.3 °C17 July 1976	-5.5 °C29 January 1976	12.7 °C	1,112 mm	3	19
1975	32.2 °C18 July 1975	-2.9 °C26 November 1975	13.1 °C	926 mm	11	16
1974	35.0 °C16 August 1974	-3.3 °C17 December 1974	13.1 °C	835 mm	24	9
1973	32.9 °C20 August 1973	-5.3 °C29 November 1973	13.0 °C	833 mm	19	35
1972	33.6 °C9 July 1972	-2.9 °C28 November 1972	12.9 °C	1,221 mm	9	8
1971	35.7 °C8 August 1971	-6.4 °C7 March 1971	12.9 °C	854 mm	40	30
1970	35.3 °C23 July 1970	-9.9 °C26 December 1970	13.2 °C	839 mm	31	28
1969	32.3 °C20 July 1969	-6.0 °C12 February 1969	12.8 °C	1,130 mm	12	28
1968	34.9 °C10 July 1968	-10.2 °C14 January 1968	12.8 °C	1,160 mm	7	31
1967	35.0 °C25 July 1967	-11.1 °C10 January 1967	13.3 °C	928 mm	26	33
1966	34.3 °C15 August 1966	-8.6 °C20 January 1966	13.0 °C	1,197 mm	8	34
1965	33.8 °C26 June 1965	-6.8 °C18 February 1965	12.8 °C	1,162 mm	22	34
1964	31.6 °C20 July 1964	-4.4 °C22 February 1964	13.0 °C	986 mm	11	43
1963	31.1 °C3 August 1963	-12.6 °C31 January 1963	12.5 °C	1,109 mm	10	52
1962	36.3 °C28 July 1962	-5.4 °C3 February 1962	13.3 °C	953 mm	61	38
1961	35.2 °C10 August 1961	-5.2 °C17 December 1961	14.2 °C	924 mm	24	19
1960	36.7 °C28 August 1960	-7.8 °C14 January 1960	13.6 °C	1,229 mm	13	17
1959	33.7 °C28 July 1959	-2.3 °C13 February 1959	13.7 °C	834 mm	23	10
1958	37.2 °C1 August 1958	-6.2 °C20 February 1958	13.6 °C	937 mm	26	30
1957	36.1 °C13 August 1957	-7.0 °C20 January 1957	13.2 °C	950 mm	19	28
1956	37.2 °C10 August 1956	-14.3 °C15 February 1956	12.6 °C	726 mm	40	48
1955	33.7 °C20 July 1955	-4.2 °C2 January 1955	13.8 °C	870 mm	21	12
1954	31.7 °C29 July 1954	-6.6 °C1 February 1954	12.9 °C	766 mm	17	41
1953	34.0 °C28 July 1953	-3.4 °C9 February 1953	13.5 °C	951 mm	24	36
1952	35.7 °C6 July 1952	-2.8 °C4 February 1952	13.9 °C	865 mm	48	26
1951	32.4 °C7 August 1951	-1.0 °C18 January 1951	13.2 °C	986 mm	9	11
1950	36.5 °C5 July 1950	-3.6 °C21 December 1950	13.9 °C	705 mm	52	23
1949	34.1 °C9 August 1949	-4.7 °C5 March 1949	13.1 °C	811 mm	30	33
1948	30.6 °C23 July 1948	-3.3 °C19 February 1948	12.7 °C	846 mm	5	34
1947	35.8 °C2 August 1947	-7.6 °C1 February 1947	13.4 °C	960 mm	23	46
1946	34.9 °C14 August 1946	-4.0 °C17 January 1946	13.2 °C	927 mm	40	37
1945	36.6 °C29 July 1945	-10.7 °C11 January 1945	13.3 °C	487 mm	40	53
1944	33.6 °C23 August 1944	-5.9 °C8 January 1944	12.2 °C	1,038 mm	17	50
1943	34.8 °C20 August 1943	-7.4 °C4 January 1943	13.5 °C	880 mm	35	28
1942	32.2 °C31 August 1942	-16.2 °C24 January 1942	12.3 °C	763 mm	25	52
1941	34.7 °C26 July 1941	-9.0 °C19 January 1941	11.9 °C	836 mm	30	53
1940	33.7 °C10 August 1940	-14.7 °C20 January 1940	11.1 °C	810 mm	15	92

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?

Year

Across the whole year

Average daily high

19.8 °C

+1.9 °C

Hot days (≥ 30 °C)

53 d/yr

+26

Frost days (< 0 °C)

3 d/yr

-25

Annual rainfall

877 mm

-31 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	10.7 °C	+2.9 °C	33 mm	-31 mm
Feb	11.7 °C	+2.2 °C	88 mm	+17 mm
Mar	14.5 °C	+1.7 °C	131 mm	+56 mm
Apr	18.6 °C	+2.2 °C	85 mm	+2 mm
May	21.7 °C	+0.8 °C	109 mm	+30 mm
Jun	30.8 °C	+5.5 °C	10 mm	-52 mm
Jul	30.1 °C	+1.4 °C	55 mm	+14 mm
Aug	30.3 °C	+1.6 °C	81 mm	+24 mm
Sep	25.5 °C	+1.2 °C	107 mm	+19 mm
Oct	19.5 °C	+0.7 °C	51 mm	-49 mm
Nov	14.0 °C	+1.1 °C	97 mm	-10 mm
Dec	10.1 °C	+1.3 °C	31 mm	-53 mm

The year's extremes

Hottest day

36.1 °C

12 Aug 2025

Coldest day

-1.4 °C

15 Jan 2025

Wettest day

42.2 mm

10 Sep 2025

Windiest day

30.5 km/h

12 Jan 2025

Strongest gust

69.5 km/h

14 Mar 2025

Hottest feels-like

39.3 °C

13 Aug 2025

Coldest feels-like

-4.9 °C

15 Jan 2025

Snowiest day

1.3 cm

22 Nov 2025

Sunniest day

14.7 h

26 Jun 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Castiglione del Lago?

Castiglione del Lago has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 13.4 °C and it receives 908 mm of precipitation per year.

What is the hottest day ever recorded in Castiglione del Lago?

The hottest day measured in Castiglione del Lago between 1940 and 2025 was 4 August 2017, reaching 38.0 °C.

What is the coldest day in Castiglione del Lago?

The coldest day measured in Castiglione del Lago between 1940 and 2025 was 24 January 1942, at -16.2 °C.

Does it snow in Castiglione del Lago?

Yes. Castiglione del Lago gets on average 16.5 cm of snow per year and has around 28 frost days.

Has the climate of Castiglione del Lago warmed?

Yes: Castiglione del Lago warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Castiglione del Lago?

The wettest day measured in Castiglione del Lago between 1940 and 2025 was 30 July 2010, with 81 mm of rain in 24 hours.

What was the windiest day in Castiglione del Lago?

The windiest day measured in Castiglione del Lago between 1940 and 2025 was 29 October 2018, with winds reaching 40.2 km/h.

What is the warmest month in Castiglione del Lago?

The warmest month in Castiglione del Lago is July (23.1 °C on average); the coldest is January (4.4 °C).

How much does it rain in Castiglione del Lago?

Castiglione del Lago receives on average 908 mm of precipitation per year, spread over about 118 rainy days.

Is it sunny in Castiglione del Lago?

Castiglione del Lago gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.

What is the biggest single-day snowfall in Castiglione del Lago?

The heaviest 24-hour snowfall measured in Castiglione del Lago between 1940 and 2025 was 23 January 1940, with 17.7 cm.

Are there tropical nights in Castiglione del Lago?

Yes: Castiglione del Lago has on average 13 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Castiglione del Lago?

In Castiglione del Lago, between 1940 and 2025, the highest apparent temperature reached 40.8 °C on 1 August 2017, and the lowest was -20.4 °C on 24 January 1942.

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