Lannemezan climate — normals and trends

Q: What is the climate of Lannemezan?

Lannemezan has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 12.3 °C and it receives 1,133 mm of precipitation per year.

Q: What is the hottest day ever recorded in Lannemezan?

The hottest day measured in Lannemezan between 1940 and 2025 was 11 August 2025, reaching 39.2 °C.

Q: What is the coldest day in Lannemezan?

The coldest day measured in Lannemezan between 1940 and 2025 was 16 February 1956, at -19.9 °C.

Q: Does it snow in Lannemezan?

Yes. Lannemezan gets on average 22.4 cm of snow per year and has around 30 frost days.

Q: Has the climate of Lannemezan warmed?

Yes: Lannemezan warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Lannemezan?

The wettest day measured in Lannemezan between 1940 and 2025 was 14 August 2024, with 105 mm of rain in 24 hours.

Q: What was the windiest day in Lannemezan?

The windiest day measured in Lannemezan between 1940 and 2025 was 24 January 2009, with winds reaching 47.2 km/h.

Q: What is the warmest month in Lannemezan?

The warmest month in Lannemezan is July (19.9 °C on average); the coldest is January (4.9 °C).

Q: How much does it rain in Lannemezan?

Lannemezan receives on average 1,133 mm of precipitation per year, spread over about 154 rainy days.

Q: Is it sunny in Lannemezan?

Lannemezan gets on average 8.9 hours of sunshine per day, roughly 3,249 hours per year over 1940-2025.

Lannemezan (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 12.3 °C and it receives 1,133 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 (19.9 °C on average) and the coldest is January (4.9 °C). Rainfall peaks in May.

Lannemezan averages 30 frost days, 10 hot days (≥ 30 °C) and 154 rainy days per year.

Lannemezan 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 41 to 19 per year over the period.

The hottest day of the period reached 39.2 °C (on 11 August 2025) and the coldest -19.9 °C (on 16 February 1956).

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

LannemezanOccitanie

coords: 43.13°, 0.38°
period: 1940–2025 · 86 yrs

CfbTemperate oceanicWarmest monthJulyColdest monthJanuaryWettest monthMayDriest monthJuly

Mean daily temperature

12.3°C

Average daily high

16.7°C

Average daily low

8.3°C

Annual rainfall

1,133mm

Sunshine / day

8.9h

Mean relative humidity

76%

Average peak wind

12.0km/h

Seasonal range

15.0°C

Frost days (< 0 °C)

30 d/yr

Hot days (≥ 30 °C)

10 d/yr

Rainy days (≥ 1 mm)

154 d/yr

Annual snowfall

22.4 cm

Average feels-like high

15.8 °C

Average feels-like low

6.5 °C

Average peak gust

29.8 km/h

Tropical nights (≥ 20 °C)

2 d/yr

Solar radiation

13.5 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.0 °C

since 1940

+0.2 °C per decade · r² = 0.53 · 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

11 August 2025

Coldest day

-19.9 °C

16 February 1956

Wettest day

105 mm

14 August 2024

Windiest day

47.2 km/h

24 January 2009

Strongest gust

128.2 km/h

24 January 2009

Hottest feels-like

41.4 °C

23 August 2023

Coldest feels-like

-24.6 °C

16 February 1956

Snowiest day

16.9 cm

31 January 1986

Sunniest day

14.5 h

21 June 2025

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	39.2 °C11 August 2025	-4.1 °C14 January 2025	13.6 °C	1,072 mm	35	17
2024	35.7 °C29 July 2024	-4.7 °C20 January 2024	13.3 °C	1,374 mm	13	9
2023	38.6 °C24 August 2023	-3.1 °C11 February 2023	13.9 °C	1,141 mm	22	23
2022	38.4 °C18 June 2022	-3.8 °C11 December 2022	14.6 °C	1,050 mm	39	23
2021	33.3 °C14 August 2021	-6.4 °C12 January 2021	12.9 °C	1,081 mm	11	16
2020	37.1 °C7 August 2020	-1.9 °C27 December 2020	13.8 °C	1,065 mm	20	9
2019	36.7 °C23 July 2019	-3.6 °C4 January 2019	13.1 °C	1,175 mm	15	16
2018	32.7 °C6 August 2018	-6.6 °C27 February 2018	13.4 °C	1,324 mm	11	15
2017	34.0 °C18 July 2017	-6.3 °C19 January 2017	13.0 °C	1,097 mm	21	33
2016	34.4 °C19 July 2016	-2.7 °C17 February 2016	13.1 °C	1,020 mm	20	18
2015	35.0 °C3 July 2015	-5.8 °C3 February 2015	13.4 °C	1,010 mm	23	26
2014	33.0 °C17 July 2014	-3.6 °C31 December 2014	13.5 °C	1,329 mm	2	8
2013	35.2 °C1 August 2013	-4.6 °C28 November 2013	12.4 °C	1,398 mm	10	34
2012	34.7 °C17 August 2012	-9.5 °C9 February 2012	12.7 °C	987 mm	16	37
2011	35.6 °C20 August 2011	-5.9 °C24 January 2011	13.5 °C	925 mm	7	21
2010	36.0 °C26 August 2010	-7.6 °C12 January 2010	11.9 °C	1,087 mm	8	52
2009	34.6 °C21 July 2009	-6.2 °C9 January 2009	13.0 °C	1,054 mm	16	23
2008	33.6 °C30 August 2008	-2.1 °C25 December 2008	12.4 °C	1,204 mm	6	16
2007	34.5 °C5 August 2007	-6.6 °C27 January 2007	12.5 °C	1,058 mm	8	24
2006	34.9 °C18 July 2006	-3.7 °C30 January 2006	13.5 °C	985 mm	19	34
2005	34.8 °C27 July 2005	-8.2 °C1 March 2005	12.1 °C	1,113 mm	13	58
2004	34.6 °C1 August 2004	-4.3 °C11 March 2004	12.6 °C	1,063 mm	11	27
2003	37.4 °C4 August 2003	-5.9 °C18 February 2003	13.7 °C	1,165 mm	30	24
2002	33.8 °C14 June 2002	-2.4 °C17 January 2002	12.8 °C	1,237 mm	5	11
2001	34.2 °C25 August 2001	-9.7 °C25 December 2001	12.5 °C	1,043 mm	16	30
2000	32.3 °C18 June 2000	-4.5 °C26 January 2000	12.9 °C	1,234 mm	8	26
1999	33.7 °C2 July 1999	-5.1 °C13 February 1999	12.6 °C	1,275 mm	6	32
1998	35.2 °C20 July 1998	-4.1 °C22 January 1998	12.5 °C	927 mm	11	29
1997	31.1 °C3 August 1997	-2.9 °C6 December 1997	13.6 °C	1,152 mm	6	17
1996	32.8 °C22 July 1996	-6.1 °C29 December 1996	12.3 °C	1,289 mm	5	18
1995	34.2 °C25 July 1995	-4.7 °C15 December 1995	12.8 °C	1,021 mm	6	20
1994	34.0 °C21 August 1994	-5.2 °C19 January 1994	13.1 °C	1,144 mm	15	13
1993	32.8 °C21 August 1993	-6.8 °C25 February 1993	12.0 °C	1,146 mm	9	33
1992	34.4 °C18 August 1992	-2.9 °C23 January 1992	12.1 °C	1,319 mm	13	32
1991	34.7 °C26 August 1991	-5.0 °C15 February 1991	12.0 °C	1,016 mm	15	38
1990	33.9 °C21 July 1990	-5.0 °C21 December 1990	13.1 °C	1,009 mm	18	29
1989	35.8 °C20 July 1989	-3.9 °C3 January 1989	13.3 °C	823 mm	8	23
1988	32.6 °C1 August 1988	-6.3 °C23 November 1988	12.4 °C	1,140 mm	8	33
1987	35.4 °C13 August 1987	-12.8 °C19 January 1987	12.3 °C	1,080 mm	14	35
1986	33.6 °C3 August 1986	-7.6 °C11 February 1986	12.0 °C	1,107 mm	6	30
1985	34.9 °C25 July 1985	-14.4 °C16 January 1985	11.8 °C	1,031 mm	6	53
1984	33.4 °C23 July 1984	-3.8 °C11 January 1984	11.6 °C	1,240 mm	7	24
1983	35.8 °C30 July 1983	-14.3 °C12 February 1983	12.6 °C	1,092 mm	13	31
1982	36.7 °C8 July 1982	-3.0 °C29 January 1982	12.7 °C	1,304 mm	7	8
1981	32.9 °C30 July 1981	-4.8 °C22 February 1981	12.3 °C	1,321 mm	6	30
1980	31.2 °C14 August 1980	-8.5 °C30 December 1980	11.3 °C	1,264 mm	2	37
1979	30.3 °C18 July 1979	-4.6 °C3 January 1979	11.7 °C	1,331 mm	2	31
1978	31.6 °C16 July 1978	-7.3 °C30 November 1978	11.6 °C	1,201 mm	3	33
1977	28.4 °C11 September 1977	-8.2 °C12 January 1977	11.9 °C	1,242 mm	0	22
1976	32.3 °C15 July 1976	-5.8 °C17 February 1976	11.8 °C	1,269 mm	6	29
1975	33.9 °C31 July 1975	-3.6 °C24 December 1975	11.7 °C	1,158 mm	11	26
1974	35.1 °C16 August 1974	-2.2 °C3 January 1974	11.6 °C	1,473 mm	6	14
1973	32.5 °C6 August 1973	-6.3 °C3 December 1973	11.6 °C	1,131 mm	7	44
1972	29.9 °C6 August 1972	-2.9 °C31 January 1972	11.3 °C	1,385 mm	0	20
1971	32.9 °C17 August 1971	-12.1 °C2 January 1971	11.7 °C	1,454 mm	5	37
1970	31.4 °C7 September 1970	-8.9 °C28 December 1970	11.9 °C	1,261 mm	3	32
1969	31.3 °C7 August 1969	-7.0 °C9 February 1969	11.7 °C	1,415 mm	5	40
1968	35.4 °C30 June 1968	-4.8 °C31 December 1968	12.1 °C	1,341 mm	6	22
1967	32.4 °C19 July 1967	-10.4 °C11 December 1967	11.9 °C	1,098 mm	3	32
1966	32.3 °C8 September 1966	-4.5 °C17 January 1966	12.0 °C	1,271 mm	6	16
1965	34.4 °C6 August 1965	-10.7 °C19 February 1965	11.3 °C	1,319 mm	4	47
1964	33.6 °C16 July 1964	-4.1 °C9 March 1964	11.9 °C	902 mm	15	45
1963	30.1 °C21 June 1963	-12.6 °C4 February 1963	10.8 °C	1,212 mm	2	57
1962	35.0 °C14 August 1962	-7.8 °C25 December 1962	11.6 °C	963 mm	11	35
1961	32.4 °C29 August 1961	-3.1 °C20 December 1961	12.9 °C	954 mm	4	12
1960	32.0 °C22 August 1960	-10.4 °C15 January 1960	12.0 °C	1,209 mm	3	27
1959	31.4 °C9 July 1959	-2.2 °C3 February 1959	12.6 °C	1,298 mm	2	12
1958	32.0 °C1 August 1958	-3.0 °C27 February 1958	12.2 °C	1,389 mm	2	21
1957	32.8 °C3 July 1957	-10.6 °C17 January 1957	11.7 °C	1,033 mm	6	27
1956	30.7 °C9 August 1956	-19.9 °C16 February 1956	10.6 °C	995 mm	1	46
1955	33.3 °C17 July 1955	-6.3 °C21 February 1955	12.5 °C	855 mm	5	28
1954	29.6 °C31 August 1954	-14.9 °C2 February 1954	10.9 °C	1,249 mm	0	35
1953	32.3 °C12 August 1953	-7.6 °C18 February 1953	11.4 °C	707 mm	3	45
1952	32.2 °C30 June 1952	-6.9 °C22 January 1952	11.9 °C	1,115 mm	6	48
1951	32.5 °C29 July 1951	-3.9 °C6 February 1951	11.5 °C	1,367 mm	4	19
1950	34.5 °C29 June 1950	-12.4 °C21 January 1950	12.1 °C	1,102 mm	6	31
1949	31.8 °C11 July 1949	-5.2 °C3 February 1949	12.0 °C	1,022 mm	6	46
1948	30.6 °C7 August 1948	-9.5 °C22 February 1948	11.9 °C	892 mm	1	14
1947	36.6 °C26 June 1947	-14.2 °C30 January 1947	12.7 °C	953 mm	22	31
1946	34.2 °C3 August 1946	-6.4 °C17 December 1946	11.3 °C	1,085 mm	6	56
1945	34.3 °C13 July 1945	-11.1 °C9 January 1945	12.2 °C	851 mm	13	50
1944	33.5 °C19 August 1944	-14.0 °C23 February 1944	11.3 °C	1,029 mm	10	56
1943	35.0 °C9 September 1943	-5.3 °C22 November 1943	12.2 °C	1,014 mm	15	34
1942	33.6 °C28 August 1942	-17.2 °C13 January 1942	11.7 °C	856 mm	11	65
1941	37.9 °C25 July 1941	-11.4 °C6 February 1941	11.0 °C	939 mm	14	52
1940	30.0 °C9 August 1940	-11.5 °C21 January 1940	11.2 °C	1,105 mm	1	56

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

18.7 °C

+2.0 °C

Hot days (≥ 30 °C)

35 d/yr

+25

Frost days (< 0 °C)

17 d/yr

-13

Annual rainfall

1072 mm

-61 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	11.1 °C	+2.1 °C	96 mm	+8 mm
Feb	13.6 °C	+3.2 °C	50 mm	-29 mm
Mar	13.7 °C	+0.3 °C	90 mm	+2 mm
Apr	17.9 °C	+2.6 °C	121 mm	+6 mm
May	20.2 °C	+1.6 °C	148 mm	+12 mm
Jun	27.0 °C	+4.8 °C	118 mm	+14 mm
Jul	25.6 °C	+1.1 °C	31 mm	-41 mm
Aug	28.8 °C	+4.1 °C	106 mm	+22 mm
Sep	21.9 °C	-0.3 °C	86 mm	-1 mm
Oct	19.7 °C	+1.6 °C	32 mm	-60 mm
Nov	13.8 °C	+1.2 °C	141 mm	+44 mm
Dec	11.2 °C	+1.6 °C	55 mm	-36 mm

The year's extremes

Hottest day

39.2 °C

11 Aug 2025

Coldest day

-4.1 °C

14 Jan 2025

Wettest day

40.6 mm

27 Aug 2025

Windiest day

30.8 km/h

23 Oct 2025

Strongest gust

77.4 km/h

23 Oct 2025

Hottest feels-like

41.2 °C

11 Aug 2025

Coldest feels-like

-7.2 °C

14 Jan 2025

Snowiest day

2.5 cm

21 Nov 2025

Sunniest day

14.5 h

21 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 Lannemezan?

Lannemezan has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 12.3 °C and it receives 1,133 mm of precipitation per year.

What is the hottest day ever recorded in Lannemezan?

The hottest day measured in Lannemezan between 1940 and 2025 was 11 August 2025, reaching 39.2 °C.

What is the coldest day in Lannemezan?

The coldest day measured in Lannemezan between 1940 and 2025 was 16 February 1956, at -19.9 °C.

Does it snow in Lannemezan?

Yes. Lannemezan gets on average 22.4 cm of snow per year and has around 30 frost days.

Has the climate of Lannemezan warmed?

Yes: Lannemezan warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Lannemezan?

The wettest day measured in Lannemezan between 1940 and 2025 was 14 August 2024, with 105 mm of rain in 24 hours.

What was the windiest day in Lannemezan?

The windiest day measured in Lannemezan between 1940 and 2025 was 24 January 2009, with winds reaching 47.2 km/h.

What is the warmest month in Lannemezan?

The warmest month in Lannemezan is July (19.9 °C on average); the coldest is January (4.9 °C).

How much does it rain in Lannemezan?

Lannemezan receives on average 1,133 mm of precipitation per year, spread over about 154 rainy days.

Is it sunny in Lannemezan?

Lannemezan 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 Lannemezan?

The heaviest 24-hour snowfall measured in Lannemezan between 1940 and 2025 was 31 January 1986, with 16.9 cm.

Are there tropical nights in Lannemezan?

Yes: Lannemezan has on average 2 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Lannemezan?

In Lannemezan, between 1940 and 2025, the highest apparent temperature reached 41.4 °C on 23 August 2023, and the lowest was -24.6 °C on 16 February 1956.

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