Chalonnes-sur-Loire climate — normals and trends

Q: What is the climate of Chalonnes-sur-Loire?

Chalonnes-sur-Loire has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 11.7 °C and it receives 653 mm of precipitation per year.

Q: What is the hottest day ever recorded in Chalonnes-sur-Loire?

The hottest day measured in Chalonnes-sur-Loire between 1940 and 2025 was 18 July 2022, reaching 41.8 °C.

Q: What is the coldest day in Chalonnes-sur-Loire?

The coldest day measured in Chalonnes-sur-Loire between 1940 and 2025 was 18 January 1987, at -15.9 °C.

Q: Does it snow in Chalonnes-sur-Loire?

Yes. Chalonnes-sur-Loire gets on average 5.8 cm of snow per year and has around 35 frost days.

Q: Has the climate of Chalonnes-sur-Loire warmed?

Yes: Chalonnes-sur-Loire warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Chalonnes-sur-Loire?

The wettest day measured in Chalonnes-sur-Loire between 1940 and 2025 was 9 October 2024, with 76 mm of rain in 24 hours.

Q: What was the windiest day in Chalonnes-sur-Loire?

The windiest day measured in Chalonnes-sur-Loire between 1940 and 2025 was 26 December 1999, with winds reaching 64.6 km/h.

Q: What is the warmest month in Chalonnes-sur-Loire?

The warmest month in Chalonnes-sur-Loire is July (19.2 °C on average); the coldest is January (4.7 °C).

Q: How much does it rain in Chalonnes-sur-Loire?

Chalonnes-sur-Loire receives on average 653 mm of precipitation per year, spread over about 119 rainy days.

Q: Is it sunny in Chalonnes-sur-Loire?

Chalonnes-sur-Loire gets on average 8.3 hours of sunshine per day, roughly 3,030 hours per year over 1940-2025.

Chalonnes-sur-Loire (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 11.7 °C and it receives 653 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 (19.2 °C on average) and the coldest is January (4.7 °C). Rainfall peaks in May.

Chalonnes-sur-Loire averages 35 frost days, 7 hot days (≥ 30 °C) and 119 rainy days per year.

Chalonnes-sur-Loire has warmed by +1.6 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.

The number of frost days there went from about 45 to 25 per year over the period.

The hottest day of the period reached 41.8 °C (on 18 July 2022) and the coldest -15.9 °C (on 18 January 1987).

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

Chalonnes-sur-LoirePays de la Loire Region

coords: 47.35°, -0.76°
period: 1940–2025 · 86 yrs

CfbTemperate oceanicWarmest monthJulyColdest monthJanuaryWettest monthMayDriest monthJuly

Mean daily temperature

11.7°C

Average daily high

15.7°C

Average daily low

7.9°C

Annual rainfall

653mm

Sunshine / day

8.3h

Mean relative humidity

79%

Average peak wind

19.5km/h

Seasonal range

14.5°C

Frost days (< 0 °C)

35 d/yr

Hot days (≥ 30 °C)

7 d/yr

Rainy days (≥ 1 mm)

119 d/yr

Annual snowfall

5.8 cm

Average feels-like high

13.5 °C

Average feels-like low

5.4 °C

Average peak gust

37.4 km/h

Tropical nights (≥ 20 °C)

1 d/yr

Solar radiation

12.4 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.6 °C

since 1940

+0.2 °C per decade · r² = 0.35 · 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

41.8 °C

18 July 2022

Coldest day

-15.9 °C

18 January 1987

Wettest day

76 mm

9 October 2024

Windiest day

64.6 km/h

26 December 1999

Strongest gust

132.5 km/h

26 December 1999

Hottest feels-like

41.1 °C

5 August 2003

Coldest feels-like

-20.7 °C

18 January 1987

Snowiest day

10.2 cm

26 January 1945

Sunniest day

15.7 h

17 June 2025

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	37.8 °C30 June 2025	-5.1 °C14 January 2025	13.2 °C	604 mm	31	33
2024	35.2 °C11 August 2024	-4.6 °C19 January 2024	12.7 °C	931 mm	9	14
2023	34.4 °C23 August 2023	-4.5 °C9 February 2023	13.6 °C	753 mm	19	25
2022	41.8 °C18 July 2022	-5.5 °C10 December 2022	13.8 °C	554 mm	34	25
2021	32.4 °C7 September 2021	-5.0 °C11 February 2021	12.0 °C	696 mm	7	35
2020	37.8 °C7 August 2020	-1.4 °C22 January 2020	13.4 °C	753 mm	15	10
2019	39.6 °C23 July 2019	-3.0 °C24 January 2019	12.8 °C	690 mm	18	21
2018	34.8 °C6 August 2018	-8.2 °C28 February 2018	13.0 °C	748 mm	14	28
2017	36.0 °C19 June 2017	-7.3 °C20 January 2017	12.7 °C	514 mm	18	33
2016	37.1 °C19 July 2016	-4.0 °C17 February 2016	12.2 °C	639 mm	16	19
2015	36.1 °C30 June 2015	-4.6 °C1 January 2015	12.7 °C	555 mm	11	26
2014	34.0 °C17 July 2014	-6.9 °C29 December 2014	13.0 °C	725 mm	1	10
2013	33.5 °C21 July 2013	-5.0 °C15 March 2013	11.7 °C	729 mm	7	36
2012	34.9 °C17 August 2012	-9.8 °C12 February 2012	11.8 °C	778 mm	9	33
2011	35.1 °C26 June 2011	-4.7 °C3 January 2011	12.9 °C	516 mm	3	15
2010	33.3 °C8 July 2010	-6.8 °C5 January 2010	11.1 °C	562 mm	7	63
2009	33.7 °C15 August 2009	-9.7 °C7 January 2009	12.1 °C	663 mm	13	37
2008	32.0 °C30 August 2008	-4.1 °C27 January 2008	11.6 °C	664 mm	2	32
2007	32.2 °C5 August 2007	-6.4 °C26 January 2007	12.0 °C	621 mm	1	25
2006	36.4 °C18 July 2006	-5.2 °C25 January 2006	12.4 °C	746 mm	16	45
2005	34.1 °C27 June 2005	-10.0 °C1 March 2005	12.2 °C	481 mm	16	43
2004	33.4 °C1 August 2004	-4.6 °C2 March 2004	12.0 °C	533 mm	11	34
2003	38.0 °C5 August 2003	-7.4 °C9 January 2003	12.7 °C	632 mm	22	35
2002	31.5 °C17 June 2002	-3.9 °C1 January 2002	12.4 °C	728 mm	2	12
2001	33.4 °C25 August 2001	-6.3 °C21 December 2001	12.0 °C	755 mm	10	36
2000	33.9 °C25 August 2000	-5.4 °C25 January 2000	12.3 °C	779 mm	8	20
1999	33.1 °C2 July 1999	-4.2 °C20 December 1999	12.5 °C	864 mm	6	22
1998	35.5 °C10 August 1998	-6.6 °C24 November 1998	11.8 °C	678 mm	7	38
1997	31.6 °C9 August 1997	-13.9 °C2 January 1997	12.5 °C	577 mm	11	28
1996	34.3 °C22 July 1996	-12.2 °C30 December 1996	11.2 °C	625 mm	6	40
1995	34.7 °C3 August 1995	-5.5 °C3 January 1995	12.4 °C	666 mm	16	32
1994	34.2 °C3 August 1994	-3.8 °C18 January 1994	12.6 °C	872 mm	8	13
1993	32.5 °C21 August 1993	-7.6 °C3 January 1993	11.3 °C	587 mm	2	38
1992	31.5 °C31 July 1992	-6.5 °C23 January 1992	11.6 °C	547 mm	5	32
1991	32.1 °C21 August 1991	-10.8 °C8 February 1991	11.1 °C	533 mm	6	47
1990	36.5 °C4 August 1990	-5.2 °C7 December 1990	12.5 °C	527 mm	16	27
1989	31.1 °C20 July 1989	-4.0 °C26 November 1989	12.5 °C	558 mm	5	34
1988	29.5 °C7 August 1988	-4.9 °C22 November 1988	11.8 °C	722 mm	0	18
1987	31.1 °C20 August 1987	-15.9 °C18 January 1987	10.7 °C	599 mm	6	56
1986	32.6 °C28 June 1986	-13.6 °C22 February 1986	10.6 °C	729 mm	3	45
1985	31.3 °C13 July 1985	-14.6 °C15 January 1985	10.5 °C	614 mm	2	62
1984	32.6 °C29 July 1984	-4.9 °C16 February 1984	11.3 °C	757 mm	4	25
1983	33.3 °C11 July 1983	-4.3 °C17 February 1983	11.7 °C	716 mm	10	40
1982	33.6 °C8 July 1982	-3.1 °C13 January 1982	12.1 °C	790 mm	5	15
1981	30.7 °C4 August 1981	-4.5 °C12 February 1981	11.4 °C	776 mm	3	36
1980	30.1 °C25 July 1980	-7.7 °C14 January 1980	10.5 °C	648 mm	1	40
1979	29.4 °C26 July 1979	-7.1 °C2 January 1979	10.8 °C	749 mm	0	49
1978	28.0 °C29 July 1978	-5.9 °C12 February 1978	10.9 °C	725 mm	0	36
1977	28.0 °C3 July 1977	-5.4 °C30 November 1977	11.2 °C	689 mm	0	31
1976	34.6 °C28 June 1976	-5.4 °C28 December 1976	11.9 °C	534 mm	17	38
1975	35.5 °C4 August 1975	-4.2 °C19 December 1975	11.2 °C	615 mm	7	37
1974	30.9 °C15 August 1974	-3.4 °C6 March 1974	11.3 °C	708 mm	1	19
1973	33.1 °C13 August 1973	-6.0 °C3 December 1973	11.0 °C	619 mm	7	47
1972	28.5 °C17 July 1972	-8.0 °C31 January 1972	10.7 °C	775 mm	0	23
1971	33.1 °C9 July 1971	-9.4 °C5 January 1971	11.1 °C	694 mm	6	43
1970	31.5 °C3 August 1970	-9.5 °C6 January 1970	11.1 °C	690 mm	3	39
1969	33.8 °C8 August 1969	-7.7 °C16 February 1969	11.5 °C	688 mm	5	43
1968	34.2 °C1 July 1968	-6.6 °C13 December 1968	11.1 °C	691 mm	2	36
1967	30.5 °C12 July 1967	-8.0 °C12 December 1967	11.2 °C	669 mm	1	31
1966	28.9 °C12 August 1966	-7.9 °C16 January 1966	11.6 °C	938 mm	0	23
1965	26.6 °C12 August 1965	-5.6 °C3 March 1965	10.8 °C	832 mm	0	40
1964	32.3 °C17 July 1964	-9.9 °C29 December 1964	11.1 °C	627 mm	6	48
1963	29.1 °C23 July 1963	-11.2 °C19 January 1963	10.0 °C	596 mm	0	65
1962	29.6 °C2 September 1962	-7.6 °C25 December 1962	10.7 °C	582 mm	0	50
1961	34.2 °C29 August 1961	-5.2 °C18 December 1961	12.3 °C	530 mm	8	22
1960	29.5 °C22 June 1960	-9.0 °C16 January 1960	11.4 °C	806 mm	0	34
1959	32.1 °C9 July 1959	-4.3 °C9 January 1959	12.5 °C	609 mm	3	30
1958	27.1 °C5 September 1958	-5.4 °C10 March 1958	11.4 °C	865 mm	0	30
1957	32.6 °C3 July 1957	-5.2 °C20 January 1957	11.8 °C	644 mm	6	20
1956	30.3 °C8 July 1956	-10.1 °C2 February 1956	10.5 °C	489 mm	2	54
1955	30.7 °C23 August 1955	-5.1 °C8 March 1955	11.6 °C	601 mm	5	48
1954	30.2 °C3 August 1954	-11.2 °C2 February 1954	11.0 °C	536 mm	1	32
1953	31.5 °C11 August 1953	-6.4 °C15 January 1953	11.3 °C	434 mm	3	43
1952	34.2 °C1 July 1952	-5.3 °C31 December 1952	11.3 °C	737 mm	3	50
1951	30.1 °C29 July 1951	-3.9 °C30 January 1951	11.1 °C	674 mm	1	25
1950	30.8 °C29 June 1950	-6.7 °C30 December 1950	11.4 °C	704 mm	1	38
1949	36.5 °C12 July 1949	-4.4 °C3 February 1949	12.5 °C	441 mm	20	36
1948	33.7 °C28 July 1948	-10.0 °C22 February 1948	11.6 °C	625 mm	3	25
1947	37.6 °C28 July 1947	-11.7 °C29 January 1947	12.4 °C	501 mm	25	51
1946	32.6 °C3 July 1946	-12.1 °C21 December 1946	10.9 °C	500 mm	10	52
1945	34.0 °C18 July 1945	-14.3 °C29 January 1945	11.9 °C	491 mm	5	47
1944	34.9 °C13 August 1944	-6.9 °C28 December 1944	11.4 °C	498 mm	8	56
1943	32.8 °C31 July 1943	-3.1 °C12 December 1943	12.0 °C	481 mm	8	39
1942	32.1 °C27 August 1942	-14.7 °C23 January 1942	10.9 °C	594 mm	8	69
1941	35.3 °C25 July 1941	-10.0 °C14 January 1941	10.8 °C	624 mm	7	44
1940	31.7 °C6 September 1940	-10.9 °C21 January 1940	11.4 °C	611 mm	5	53

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

17.9 °C

+2.2 °C

Hot days (≥ 30 °C)

31 d/yr

+24

Frost days (< 0 °C)

33 d/yr

-2

Annual rainfall

604 mm

-49 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	8.1 °C	+0.7 °C	148 mm	+87 mm
Feb	9.5 °C	+0.7 °C	54 mm	-1 mm
Mar	13.5 °C	+1.6 °C	45 mm	-9 mm
Apr	18.2 °C	+3.5 °C	69 mm	+14 mm
May	21.1 °C	+2.8 °C	21 mm	-45 mm
Jun	27.6 °C	+5.7 °C	20 mm	-27 mm
Jul	26.7 °C	+2.6 °C	37 mm	-2 mm
Aug	27.8 °C	+3.9 °C	28 mm	-15 mm
Sep	20.9 °C	-0.3 °C	34 mm	-13 mm
Oct	17.7 °C	+1.1 °C	46 mm	-16 mm
Nov	13.6 °C	+2.4 °C	56 mm	-7 mm
Dec	9.7 °C	+1.5 °C	47 mm	-16 mm

The year's extremes

Hottest day

37.8 °C

30 Jun 2025

Coldest day

-5.1 °C

14 Jan 2025

Wettest day

28.2 mm

19 Apr 2025

Windiest day

41.2 km/h

27 Jan 2025

Strongest gust

89.3 km/h

26 Jan 2025

Hottest feels-like

39.0 °C

30 Jun 2025

Coldest feels-like

-9.0 °C

14 Jan 2025

Snowiest day

0.4 cm

25 Dec 2025

Sunniest day

15.7 h

17 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 Chalonnes-sur-Loire?

Chalonnes-sur-Loire has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 11.7 °C and it receives 653 mm of precipitation per year.

What is the hottest day ever recorded in Chalonnes-sur-Loire?

The hottest day measured in Chalonnes-sur-Loire between 1940 and 2025 was 18 July 2022, reaching 41.8 °C.

What is the coldest day in Chalonnes-sur-Loire?

The coldest day measured in Chalonnes-sur-Loire between 1940 and 2025 was 18 January 1987, at -15.9 °C.

Does it snow in Chalonnes-sur-Loire?

Yes. Chalonnes-sur-Loire gets on average 5.8 cm of snow per year and has around 35 frost days.

Has the climate of Chalonnes-sur-Loire warmed?

Yes: Chalonnes-sur-Loire warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Chalonnes-sur-Loire?

The wettest day measured in Chalonnes-sur-Loire between 1940 and 2025 was 9 October 2024, with 76 mm of rain in 24 hours.

What was the windiest day in Chalonnes-sur-Loire?

The windiest day measured in Chalonnes-sur-Loire between 1940 and 2025 was 26 December 1999, with winds reaching 64.6 km/h.

What is the warmest month in Chalonnes-sur-Loire?

The warmest month in Chalonnes-sur-Loire is July (19.2 °C on average); the coldest is January (4.7 °C).

How much does it rain in Chalonnes-sur-Loire?

Chalonnes-sur-Loire receives on average 653 mm of precipitation per year, spread over about 119 rainy days.

Is it sunny in Chalonnes-sur-Loire?

Chalonnes-sur-Loire gets on average 8.3 hours of sunshine per day, roughly 3,030 hours per year over 1940-2025.

What is the biggest single-day snowfall in Chalonnes-sur-Loire?

The heaviest 24-hour snowfall measured in Chalonnes-sur-Loire between 1940 and 2025 was 26 January 1945, with 10.2 cm.

Are there tropical nights in Chalonnes-sur-Loire?

Yes: Chalonnes-sur-Loire has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Chalonnes-sur-Loire?

In Chalonnes-sur-Loire, between 1940 and 2025, the highest apparent temperature reached 41.1 °C on 5 August 2003, and the lowest was -20.7 °C on 18 January 1987.

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