Lons-le-Saunier climate — normals and trends

Q: What is the climate of Lons-le-Saunier?

Lons-le-Saunier has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 11.3 °C and it receives 1,107 mm of precipitation per year.

Q: What is the hottest day ever recorded in Lons-le-Saunier?

The hottest day measured in Lons-le-Saunier between 1940 and 2025 was 24 July 2019, reaching 39.2 °C.

Q: What is the coldest day in Lons-le-Saunier?

The coldest day measured in Lons-le-Saunier between 1940 and 2025 was 9 January 1985, at -21.1 °C.

Q: Does it snow in Lons-le-Saunier?

Yes. Lons-le-Saunier gets on average 38.3 cm of snow per year and has around 52 frost days.

Q: Has the climate of Lons-le-Saunier warmed?

Yes: Lons-le-Saunier warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Lons-le-Saunier?

The wettest day measured in Lons-le-Saunier between 1940 and 2025 was 8 May 1985, with 83 mm of rain in 24 hours.

Q: What was the windiest day in Lons-le-Saunier?

The windiest day measured in Lons-le-Saunier between 1940 and 2025 was 26 December 1999, with winds reaching 48.6 km/h.

Q: What is the warmest month in Lons-le-Saunier?

The warmest month in Lons-le-Saunier is July (20.3 °C on average); the coldest is January (2.7 °C).

Q: How much does it rain in Lons-le-Saunier?

Lons-le-Saunier receives on average 1,107 mm of precipitation per year, spread over about 148 rainy days.

Q: Is it sunny in Lons-le-Saunier?

Lons-le-Saunier gets on average 8.6 hours of sunshine per day, roughly 3,139 hours per year over 1940-2025.

Lons-le-Saunier (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 11.3 °C and it receives 1,107 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 (20.3 °C on average) and the coldest is January (2.7 °C). Rainfall peaks in November.

Lons-le-Saunier averages 52 frost days, 13 hot days (≥ 30 °C) and 148 rainy days per year.

Lons-le-Saunier has warmed by +2.2 °C between 1940 and 2025, or +0.26 °C per decade. This trend is statistically significant.

The number of frost days there went from about 65 to 39 per year over the period.

The hottest day of the period reached 39.2 °C (on 24 July 2019) and the coldest -21.1 °C (on 9 January 1985).

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

Lons-le-SaunierBourgogne

coords: 46.68°, 5.56°
period: 1940–2025 · 86 yrs

CfbTemperate oceanicWarmest monthJulyColdest monthJanuaryWettest monthNovemberDriest monthJuly

Mean daily temperature

11.3°C

Average daily high

15.3°C

Average daily low

7.6°C

Annual rainfall

1,107mm

Sunshine / day

8.6h

Mean relative humidity

74%

Average peak wind

15.1km/h

Seasonal range

17.6°C

Frost days (< 0 °C)

52 d/yr

Hot days (≥ 30 °C)

13 d/yr

Rainy days (≥ 1 mm)

148 d/yr

Annual snowfall

38.3 cm

Average feels-like high

13.5 °C

Average feels-like low

5.3 °C

Average peak gust

33.8 km/h

Tropical nights (≥ 20 °C)

4 d/yr

Solar radiation

12.6 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.2 °C

since 1940

+0.3 °C per decade · r² = 0.51 · 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

39.2 °C

24 July 2019

Coldest day

-21.1 °C

9 January 1985

Wettest day

83 mm

8 May 1985

Windiest day

48.6 km/h

26 December 1999

Strongest gust

118.8 km/h

26 December 1999

Hottest feels-like

42.1 °C

27 June 2019

Coldest feels-like

-25.3 °C

9 January 1985

Snowiest day

20.0 cm

7 January 1994

Sunniest day

15.0 h

9 July 2025

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	37.8 °C13 August 2025	-6.6 °C14 January 2025	12.3 °C	1,080 mm	32	46
2024	35.1 °C30 July 2024	-5.8 °C14 January 2024	12.3 °C	1,370 mm	17	38
2023	39.1 °C11 July 2023	-5.3 °C10 February 2023	13.4 °C	1,108 mm	36	40
2022	37.6 °C4 August 2022	-5.6 °C17 December 2022	13.5 °C	1,023 mm	36	46
2021	32.4 °C16 June 2021	-7.8 °C14 February 2021	11.6 °C	1,276 mm	11	48
2020	39.1 °C31 July 2020	-4.4 °C23 January 2020	13.3 °C	972 mm	31	34
2019	39.2 °C24 July 2019	-4.3 °C25 January 2019	12.8 °C	1,117 mm	34	41
2018	36.1 °C5 August 2018	-11.4 °C28 February 2018	13.3 °C	1,078 mm	39	33
2017	35.3 °C22 June 2017	-9.1 °C20 January 2017	12.2 °C	1,056 mm	27	42
2016	34.3 °C27 August 2016	-5.8 °C18 January 2016	11.7 °C	1,274 mm	20	44
2015	38.7 °C5 July 2015	-5.0 °C24 November 2015	12.8 °C	962 mm	39	35
2014	34.9 °C9 June 2014	-5.6 °C29 December 2014	12.7 °C	1,110 mm	9	15
2013	36.5 °C27 July 2013	-5.8 °C11 December 2013	11.3 °C	1,285 mm	15	64
2012	36.4 °C19 August 2012	-12.3 °C5 February 2012	12.0 °C	1,288 mm	18	41
2011	36.6 °C22 August 2011	-3.9 °C4 January 2011	12.8 °C	843 mm	14	33
2010	35.2 °C14 July 2010	-10.2 °C26 December 2010	11.2 °C	1,111 mm	19	64
2009	36.9 °C20 August 2009	-10.5 °C20 December 2009	12.3 °C	1,006 mm	17	50
2008	32.8 °C2 July 2008	-5.2 °C29 December 2008	11.7 °C	1,206 mm	8	47
2007	32.3 °C19 June 2007	-9.8 °C26 January 2007	12.0 °C	1,175 mm	7	32
2006	36.8 °C25 July 2006	-6.3 °C12 February 2006	12.4 °C	1,118 mm	30	65
2005	36.3 °C28 July 2005	-16.7 °C30 December 2005	11.7 °C	945 mm	23	71
2004	34.1 °C2 August 2004	-6.3 °C29 January 2004	11.5 °C	1,032 mm	10	59
2003	39.1 °C7 August 2003	-11.4 °C13 January 2003	12.7 °C	874 mm	51	57
2002	34.4 °C18 June 2002	-6.5 °C2 January 2002	12.4 °C	1,179 mm	15	25
2001	33.3 °C26 August 2001	-9.8 °C15 December 2001	11.8 °C	1,288 mm	15	48
2000	32.9 °C20 August 2000	-11.0 °C25 January 2000	12.5 °C	1,137 mm	16	24
1999	33.1 °C25 August 1999	-8.0 °C12 January 1999	12.0 °C	1,485 mm	11	35
1998	37.5 °C11 August 1998	-8.7 °C23 November 1998	11.6 °C	1,092 mm	16	50
1997	32.0 °C24 August 1997	-8.1 °C2 January 1997	12.0 °C	957 mm	8	46
1996	31.2 °C6 June 1996	-9.0 °C29 December 1996	10.8 °C	1,042 mm	4	55
1995	35.0 °C21 July 1995	-8.0 °C5 January 1995	11.7 °C	1,348 mm	15	46
1994	34.2 °C4 August 1994	-6.3 °C19 January 1994	12.6 °C	1,248 mm	22	24
1993	32.1 °C21 August 1993	-10.8 °C4 January 1993	11.2 °C	1,076 mm	8	52
1992	34.9 °C8 August 1992	-9.1 °C23 January 1992	11.6 °C	1,250 mm	16	42
1991	33.2 °C11 July 1991	-12.0 °C14 February 1991	11.1 °C	945 mm	14	57
1990	34.1 °C5 August 1990	-7.8 °C18 December 1990	11.9 °C	1,091 mm	14	45
1989	33.4 °C21 July 1989	-6.5 °C5 December 1989	12.0 °C	883 mm	12	54
1988	33.0 °C23 July 1988	-9.3 °C3 March 1988	11.6 °C	1,303 mm	5	38
1987	31.8 °C21 August 1987	-15.6 °C12 January 1987	10.6 °C	1,262 mm	10	62
1986	35.4 °C3 August 1986	-12.6 °C10 February 1986	10.7 °C	1,263 mm	11	67
1985	32.9 °C25 July 1985	-21.1 °C9 January 1985	10.2 °C	1,080 mm	4	69
1984	33.0 °C11 July 1984	-6.6 °C17 February 1984	10.5 °C	1,154 mm	8	46
1983	39.0 °C31 July 1983	-7.0 °C4 December 1983	11.2 °C	1,340 mm	19	61
1982	32.4 °C9 July 1982	-4.4 °C26 February 1982	11.5 °C	1,287 mm	9	33
1981	32.0 °C5 August 1981	-9.1 °C9 January 1981	10.9 °C	1,413 mm	4	56
1980	31.7 °C2 August 1980	-9.3 °C9 December 1980	10.2 °C	1,192 mm	3	56
1979	32.3 °C29 July 1979	-11.4 °C17 January 1979	10.7 °C	1,246 mm	4	53
1978	30.9 °C29 July 1978	-7.1 °C15 February 1978	10.5 °C	1,131 mm	2	48
1977	28.6 °C3 July 1977	-7.2 °C30 November 1977	11.2 °C	1,441 mm	0	29
1976	35.3 °C16 July 1976	-13.8 °C29 January 1976	11.3 °C	911 mm	23	47
1975	33.5 °C4 August 1975	-5.7 °C20 December 1975	10.9 °C	1,081 mm	9	46
1974	34.4 °C16 August 1974	-3.2 °C6 March 1974	11.4 °C	1,278 mm	7	14
1973	32.2 °C4 July 1973	-11.8 °C3 December 1973	10.5 °C	1,036 mm	16	80
1972	30.1 °C8 July 1972	-8.8 °C31 January 1972	10.4 °C	1,132 mm	1	39
1971	32.8 °C18 August 1971	-18.1 °C2 January 1971	10.7 °C	957 mm	10	72
1970	31.5 °C6 August 1970	-10.7 °C8 January 1970	10.6 °C	1,404 mm	4	64
1969	32.3 °C24 July 1969	-11.4 °C9 February 1969	10.5 °C	1,145 mm	6	68
1968	34.1 °C1 July 1968	-16.1 °C13 January 1968	10.8 °C	1,337 mm	6	57
1967	33.8 °C18 July 1967	-18.7 °C11 January 1967	11.1 °C	1,157 mm	8	58
1966	32.1 °C13 August 1966	-13.1 °C16 January 1966	11.3 °C	1,319 mm	2	43
1965	32.0 °C25 June 1965	-10.7 °C17 February 1965	10.4 °C	1,527 mm	3	57
1964	36.5 °C18 July 1964	-14.4 °C30 December 1964	11.0 °C	776 mm	13	57
1963	31.2 °C22 July 1963	-17.8 °C5 February 1963	10.0 °C	1,083 mm	4	75
1962	35.9 °C14 August 1962	-16.2 °C28 December 1962	10.5 °C	1,003 mm	14	71
1961	32.7 °C25 June 1961	-7.4 °C19 December 1961	12.2 °C	917 mm	14	33
1960	31.2 °C18 June 1960	-11.2 °C14 January 1960	11.3 °C	1,143 mm	3	41
1959	33.0 °C9 July 1959	-7.3 °C18 January 1959	12.3 °C	838 mm	12	36
1958	33.7 °C1 August 1958	-8.8 °C25 January 1958	11.2 °C	1,365 mm	3	47
1957	34.8 °C6 July 1957	-13.8 °C19 January 1957	11.1 °C	927 mm	9	39
1956	29.7 °C9 July 1956	-17.5 °C15 February 1956	9.7 °C	1,028 mm	0	64
1955	33.4 °C18 July 1955	-6.4 °C19 February 1955	11.2 °C	1,046 mm	2	56
1954	29.6 °C3 August 1954	-11.7 °C9 January 1954	10.2 °C	1,126 mm	0	52
1953	30.6 °C12 August 1953	-12.9 °C8 February 1953	10.8 °C	706 mm	2	65
1952	35.2 °C6 July 1952	-11.1 °C28 January 1952	11.0 °C	1,159 mm	16	70
1951	30.4 °C31 July 1951	-8.0 °C4 January 1951	10.8 °C	1,143 mm	1	39
1950	35.6 °C4 July 1950	-12.1 °C21 December 1950	11.1 °C	1,063 mm	12	57
1949	33.2 °C13 July 1949	-13.1 °C7 March 1949	11.5 °C	763 mm	14	63
1948	29.1 °C27 July 1948	-9.8 °C25 February 1948	10.7 °C	1,202 mm	0	50
1947	35.5 °C28 July 1947	-11.2 °C29 January 1947	11.8 °C	958 mm	22	69
1946	34.5 °C5 August 1946	-11.3 °C20 December 1946	10.6 °C	876 mm	7	67
1945	33.8 °C15 July 1945	-19.9 °C11 January 1945	10.7 °C	786 mm	10	79
1944	35.7 °C23 August 1944	-14.3 °C20 February 1944	10.2 °C	1,102 mm	10	85
1943	33.6 °C19 August 1943	-12.6 °C5 January 1943	11.3 °C	780 mm	13	58
1942	31.8 °C28 August 1942	-17.3 °C2 February 1942	10.4 °C	750 mm	8	90
1941	33.3 °C25 July 1941	-19.3 °C13 January 1941	9.4 °C	981 mm	6	81
1940	29.0 °C5 August 1940	-19.7 °C14 February 1940	9.6 °C	956 mm	0	87

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

17.3 °C

+2.0 °C

Hot days (≥ 30 °C)

32 d/yr

+19

Frost days (< 0 °C)

46 d/yr

-6

Annual rainfall

1080 mm

-27 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	7.6 °C	+2.2 °C	125 mm	+20 mm
Feb	9.1 °C	+1.7 °C	57 mm	-39 mm
Mar	13.9 °C	+2.3 °C	63 mm	-27 mm
Apr	18.1 °C	+3.0 °C	92 mm	+1 mm
May	20.4 °C	+1.3 °C	72 mm	-24 mm
Jun	27.9 °C	+5.1 °C	61 mm	-20 mm
Jul	26.0 °C	+0.8 °C	60 mm	-5 mm
Aug	27.9 °C	+3.1 °C	69 mm	-5 mm
Sep	20.5 °C	-0.6 °C	134 mm	+46 mm
Oct	15.6 °C	-0.3 °C	139 mm	+46 mm
Nov	11.2 °C	+1.6 °C	150 mm	+34 mm
Dec	8.4 °C	+2.3 °C	58 mm	-54 mm

The year's extremes

Hottest day

37.8 °C

13 Aug 2025

Coldest day

-6.6 °C

14 Jan 2025

Wettest day

33.0 mm

22 Sep 2025

Windiest day

36.0 km/h

6 Jan 2025

Strongest gust

91.4 km/h

23 Oct 2025

Hottest feels-like

39.0 °C

12 Aug 2025

Coldest feels-like

-10.6 °C

23 Nov 2025

Snowiest day

3.9 cm

20 Nov 2025

Sunniest day

15.0 h

9 Jul 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 Lons-le-Saunier?

Lons-le-Saunier has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 11.3 °C and it receives 1,107 mm of precipitation per year.

What is the hottest day ever recorded in Lons-le-Saunier?

The hottest day measured in Lons-le-Saunier between 1940 and 2025 was 24 July 2019, reaching 39.2 °C.

What is the coldest day in Lons-le-Saunier?

The coldest day measured in Lons-le-Saunier between 1940 and 2025 was 9 January 1985, at -21.1 °C.

Does it snow in Lons-le-Saunier?

Yes. Lons-le-Saunier gets on average 38.3 cm of snow per year and has around 52 frost days.

Has the climate of Lons-le-Saunier warmed?

Yes: Lons-le-Saunier warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Lons-le-Saunier?

The wettest day measured in Lons-le-Saunier between 1940 and 2025 was 8 May 1985, with 83 mm of rain in 24 hours.

What was the windiest day in Lons-le-Saunier?

The windiest day measured in Lons-le-Saunier between 1940 and 2025 was 26 December 1999, with winds reaching 48.6 km/h.

What is the warmest month in Lons-le-Saunier?

The warmest month in Lons-le-Saunier is July (20.3 °C on average); the coldest is January (2.7 °C).

How much does it rain in Lons-le-Saunier?

Lons-le-Saunier receives on average 1,107 mm of precipitation per year, spread over about 148 rainy days.

Is it sunny in Lons-le-Saunier?

Lons-le-Saunier gets on average 8.6 hours of sunshine per day, roughly 3,139 hours per year over 1940-2025.

What is the biggest single-day snowfall in Lons-le-Saunier?

The heaviest 24-hour snowfall measured in Lons-le-Saunier between 1940 and 2025 was 7 January 1994, with 20.0 cm.

Are there tropical nights in Lons-le-Saunier?

Yes: Lons-le-Saunier has on average 4 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Lons-le-Saunier?

In Lons-le-Saunier, between 1940 and 2025, the highest apparent temperature reached 42.1 °C on 27 June 2019, and the lowest was -25.3 °C on 9 January 1985.

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