Annāmalainagar climate — normals and trends

Q: What is the climate of Annāmalainagar?

Annāmalainagar has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.8 °C and it receives 1,036 mm of precipitation per year.

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

The hottest day measured in Annāmalainagar between 1940 and 2025 was 13 May 1956, reaching 37.0 °C.

Q: What is the coldest day in Annāmalainagar?

The coldest day measured in Annāmalainagar between 1940 and 2025 was 15 January 1990, at 19.6 °C.

Q: Does it snow in Annāmalainagar?

Almost never: Annāmalainagar sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of Annāmalainagar warmed?

Yes: Annāmalainagar warmed by +0.7 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Annāmalainagar?

The wettest day measured in Annāmalainagar between 1940 and 2025 was 6 December 1972, with 258 mm of rain in 24 hours.

Q: What was the windiest day in Annāmalainagar?

The windiest day measured in Annāmalainagar between 1940 and 2025 was 4 December 1993, with winds reaching 58.7 km/h.

Q: What is the warmest month in Annāmalainagar?

The warmest month in Annāmalainagar is May (30.5 °C on average); the coldest is January (24.9 °C).

Q: How much does it rain in Annāmalainagar?

Annāmalainagar receives on average 1,036 mm of precipitation per year, spread over about 125 rainy days.

Q: Is it sunny in Annāmalainagar?

Annāmalainagar gets on average 10.3 hours of sunshine per day, roughly 3,760 hours per year over 1940-2025.

Annāmalainagar (India) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.8 °C and it receives 1,036 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 May (30.5 °C on average) and the coldest is January (24.9 °C). Rainfall peaks in November.

Annāmalainagar averages 0 frost days, 207 hot days (≥ 30 °C) and 125 rainy days per year.

Annāmalainagar has warmed by +0.7 °C between 1940 and 2025, or +0.08 °C per decade. This trend is statistically significant.

The hottest day of the period reached 37.0 °C (on 13 May 1956) and the coldest 19.6 °C (on 15 January 1990).

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

AnnāmalainagarTamil Nadu

coords: 11.40°, 79.73°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthMayColdest monthJanuaryWettest monthNovemberDriest monthFebruary

Mean daily temperature

27.8°C

Average daily high

30.3°C

Average daily low

25.8°C

Annual rainfall

1,036mm

Sunshine / day

10.3h

Mean relative humidity

74%

Average peak wind

20.3km/h

Seasonal range

5.6°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

207 d/yr

Rainy days (≥ 1 mm)

125 d/yr

Annual snowfall

0.0 cm

Average feels-like high

34.7 °C

Average feels-like low

29.0 °C

Average peak gust

33.2 km/h

Tropical nights (≥ 20 °C)

365 d/yr

Solar radiation

19.8 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+0.7 °C

since 1940

+0.1 °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

37.0 °C

13 May 1956

Coldest day

19.6 °C

15 January 1990

Wettest day

258 mm

6 December 1972

Windiest day

58.7 km/h

4 December 1993

Strongest gust

92.9 km/h

6 December 1972

Hottest feels-like

44.1 °C

31 May 2024

Coldest feels-like

16.7 °C

9 December 2022

Sunniest day

12.6 h

31 May 1948

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	34.7 °C29 July 2025	22.3 °C14 February 2025	28.2 °C	1,046 mm	225
2024	34.9 °C2 May 2024	23.4 °C17 January 2024	28.6 °C	1,776 mm	228
2023	35.0 °C16 May 2023	21.8 °C16 January 2023	28.2 °C	1,284 mm	213
2022	33.8 °C1 May 2022	20.3 °C9 December 2022	28.0 °C	1,228 mm	203
2021	34.6 °C15 June 2021	22.4 °C11 February 2021	28.1 °C	1,618 mm	210
2020	36.2 °C19 May 2020	22.8 °C27 January 2020	28.2 °C	1,313 mm	218
2019	35.5 °C9 June 2019	22.3 °C2 January 2019	28.4 °C	1,067 mm	222
2018	35.1 °C29 May 2018	21.8 °C2 February 2018	28.1 °C	819 mm	207
2017	35.4 °C18 May 2017	22.1 °C8 February 2017	28.2 °C	1,355 mm	221
2016	35.2 °C15 June 2016	22.3 °C24 December 2016	28.5 °C	618 mm	236
2015	34.9 °C25 June 2015	21.7 °C13 November 2015	28.2 °C	1,561 mm	212
2014	35.7 °C11 June 2014	21.7 °C6 February 2014	28.3 °C	1,141 mm	210
2013	35.6 °C25 May 2013	21.5 °C10 December 2013	28.2 °C	714 mm	218
2012	35.2 °C25 May 2012	20.8 °C17 January 2012	28.2 °C	1,015 mm	222
2011	35.0 °C27 June 2011	21.5 °C20 January 2011	28.0 °C	1,076 mm	209
2010	35.9 °C25 May 2010	21.9 °C6 December 2010	28.1 °C	1,517 mm	218
2009	35.3 °C13 July 2009	21.6 °C24 January 2009	28.2 °C	1,364 mm	217
2008	35.1 °C2 May 2008	21.3 °C19 January 2008	27.9 °C	1,314 mm	201
2007	35.1 °C10 May 2007	21.3 °C25 December 2007	27.7 °C	1,340 mm	197
2006	35.0 °C3 July 2006	20.8 °C23 January 2006	27.9 °C	1,096 mm	206
2005	35.4 °C17 June 2005	21.5 °C14 February 2005	28.0 °C	1,654 mm	207
2004	34.6 °C17 April 2004	21.5 °C29 February 2004	27.6 °C	1,381 mm	197
2003	35.5 °C22 May 2003	20.0 °C15 December 2003	28.2 °C	884 mm	211
2002	35.3 °C11 May 2002	21.6 °C14 January 2002	28.1 °C	766 mm	210
2001	35.7 °C24 May 2001	22.0 °C7 February 2001	28.1 °C	1,052 mm	215
2000	35.5 °C15 May 2000	20.2 °C23 January 2000	27.9 °C	945 mm	212
1999	35.3 °C14 April 1999	21.4 °C27 January 1999	27.9 °C	944 mm	210
1998	35.9 °C2 June 1998	22.4 °C16 December 1998	28.3 °C	1,065 mm	218
1997	35.3 °C4 August 1997	20.8 °C17 February 1997	27.9 °C	990 mm	205
1996	34.8 °C16 May 1996	20.7 °C2 December 1996	27.7 °C	1,573 mm	189
1995	34.8 °C1 July 1995	21.8 °C2 January 1995	27.8 °C	771 mm	202
1994	35.2 °C2 June 1994	21.4 °C12 December 1994	27.8 °C	902 mm	204
1993	35.4 °C14 July 1993	20.9 °C20 January 1993	27.8 °C	1,340 mm	212
1992	35.3 °C20 June 1992	21.1 °C8 January 1992	27.7 °C	743 mm	212
1991	36.0 °C29 April 1991	22.1 °C29 November 1991	28.0 °C	883 mm	218
1990	35.1 °C22 June 1990	19.6 °C15 January 1990	28.0 °C	1,031 mm	217
1989	35.0 °C29 April 1989	20.0 °C4 February 1989	27.5 °C	1,033 mm	199
1988	36.2 °C10 May 1988	22.0 °C28 November 1988	28.0 °C	968 mm	213
1987	35.7 °C5 June 1987	22.0 °C2 February 1987	28.2 °C	830 mm	210
1986	36.2 °C18 May 1986	21.8 °C23 February 1986	28.0 °C	969 mm	211
1985	36.3 °C28 May 1985	21.5 °C28 January 1985	27.9 °C	903 mm	214
1984	35.8 °C3 June 1984	20.3 °C1 December 1984	27.6 °C	1,502 mm	179
1983	36.3 °C31 May 1983	21.7 °C9 January 1983	28.1 °C	963 mm	224
1982	35.2 °C3 May 1982	21.6 °C14 February 1982	28.0 °C	561 mm	213
1981	35.4 °C19 May 1981	20.6 °C10 December 1981	27.7 °C	773 mm	194
1980	36.3 °C23 May 1980	21.2 °C29 January 1980	28.1 °C	642 mm	202
1979	35.4 °C30 June 1979	22.2 °C28 January 1979	27.9 °C	1,055 mm	191
1978	34.8 °C16 May 1978	20.3 °C19 January 1978	27.8 °C	980 mm	204
1977	34.7 °C22 May 1977	20.3 °C13 January 1977	27.7 °C	1,079 mm	191
1976	36.2 °C29 July 1976	21.1 °C26 February 1976	27.7 °C	772 mm	201
1975	35.3 °C4 May 1975	21.0 °C11 January 1975	27.7 °C	988 mm	205
1974	35.1 °C17 June 1974	20.7 °C6 February 1974	27.7 °C	506 mm	201
1973	35.9 °C9 May 1973	21.7 °C15 January 1973	27.9 °C	891 mm	204
1972	35.2 °C5 June 1972	21.3 °C4 February 1972	27.7 °C	1,142 mm	190
1971	34.7 °C6 May 1971	21.5 °C12 February 1971	27.5 °C	1,130 mm	199
1970	35.0 °C4 May 1970	21.0 °C4 December 1970	27.7 °C	883 mm	206
1969	35.4 °C13 May 1969	20.5 °C27 January 1969	28.1 °C	1,288 mm	205
1968	34.7 °C30 May 1968	21.2 °C15 February 1968	27.7 °C	914 mm	193
1967	35.5 °C3 June 1967	20.1 °C9 February 1967	27.5 °C	1,146 mm	190
1966	35.8 °C23 May 1966	21.0 °C14 December 1966	27.5 °C	1,266 mm	185
1965	35.7 °C11 May 1965	21.7 °C21 January 1965	27.4 °C	1,200 mm	194
1964	36.4 °C28 May 1964	20.5 °C15 January 1964	27.7 °C	862 mm	207
1963	35.3 °C27 May 1963	20.4 °C13 February 1963	27.5 °C	1,362 mm	203
1962	34.4 °C2 August 1962	21.5 °C11 January 1962	27.5 °C	842 mm	185
1961	35.1 °C27 May 1961	21.6 °C28 December 1961	27.6 °C	736 mm	207
1960	35.9 °C22 May 1960	20.6 °C4 February 1960	27.6 °C	1,437 mm	193
1959	35.3 °C23 May 1959	21.9 °C12 February 1959	27.8 °C	896 mm	223
1958	35.4 °C5 June 1958	21.8 °C5 February 1958	27.9 °C	979 mm	213
1957	35.2 °C4 July 1957	20.4 °C6 February 1957	27.7 °C	1,002 mm	206
1956	37.0 °C13 May 1956	20.3 °C21 January 1956	27.3 °C	966 mm	192
1955	34.4 °C7 June 1955	20.9 °C30 December 1955	27.3 °C	1,120 mm	190
1954	35.3 °C29 May 1954	20.2 °C30 December 1954	27.4 °C	1,028 mm	204
1953	36.0 °C8 June 1953	21.5 °C1 January 1953	28.0 °C	616 mm	203
1952	36.3 °C20 May 1952	21.8 °C17 February 1952	28.2 °C	391 mm	243
1951	35.7 °C10 May 1951	21.7 °C27 February 1951	27.9 °C	732 mm	224
1950	35.6 °C29 May 1950	21.3 °C3 January 1950	28.0 °C	357 mm	227
1949	35.7 °C23 April 1949	21.8 °C7 January 1949	27.7 °C	580 mm	216
1948	35.6 °C18 May 1948	22.5 °C25 February 1948	27.9 °C	1,337 mm	208
1947	35.2 °C26 June 1947	22.0 °C7 February 1947	27.7 °C	885 mm	186
1946	36.3 °C12 May 1946	20.4 °C26 January 1946	27.6 °C	1,321 mm	219
1945	36.0 °C17 May 1945	20.1 °C13 December 1945	27.8 °C	904 mm	221
1944	35.2 °C24 July 1944	21.1 °C13 December 1944	27.5 °C	1,088 mm	190
1943	35.1 °C26 May 1943	21.5 °C26 January 1943	27.0 °C	1,146 mm	175
1942	34.3 °C19 June 1942	20.7 °C1 January 1942	27.2 °C	845 mm	184
1941	36.8 °C23 May 1941	20.3 °C26 December 1941	27.6 °C	1,317 mm	205
1940	35.0 °C13 May 1940	20.6 °C9 January 1940	27.5 °C	755 mm	208

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

30.4 °C

+0.1 °C

Hot days (≥ 30 °C)

225 d/yr

+18

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1046 mm

+10 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	27.3 °C	+0.6 °C	50 mm	+7 mm
Feb	28.9 °C	+0.8 °C	7 mm	-10 mm
Mar	30.6 °C	+0.5 °C	47 mm	+27 mm
Apr	32.1 °C	+0.1 °C	26 mm	+1 mm
May	32.6 °C	-0.8 °C	121 mm	+84 mm
Jun	32.8 °C	-0.3 °C	28 mm	-4 mm
Jul	32.8 °C	+0.4 °C	32 mm	-16 mm
Aug	31.3 °C	-0.6 °C	67 mm	-1 mm
Sep	31.5 °C	+0.1 °C	54 mm	-27 mm
Oct	29.7 °C	0.0 °C	242 mm	+43 mm
Nov	28.5 °C	+0.7 °C	310 mm	+22 mm
Dec	27.1 °C	+0.3 °C	63 mm	-116 mm

The year's extremes

Hottest day

34.7 °C

29 Jul 2025

Coldest day

22.3 °C

14 Feb 2025

Wettest day

133.2 mm

29 Nov 2025

Windiest day

40.4 km/h

28 Nov 2025

Strongest gust

63.4 km/h

28 Nov 2025

Hottest feels-like

42.2 °C

12 Apr 2025

Coldest feels-like

23.6 °C

13 Dec 2025

Sunniest day

12.3 h

4 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 Annāmalainagar?

Annāmalainagar has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.8 °C and it receives 1,036 mm of precipitation per year.

What is the hottest day ever recorded in Annāmalainagar?

The hottest day measured in Annāmalainagar between 1940 and 2025 was 13 May 1956, reaching 37.0 °C.

What is the coldest day in Annāmalainagar?

The coldest day measured in Annāmalainagar between 1940 and 2025 was 15 January 1990, at 19.6 °C.

Does it snow in Annāmalainagar?

Almost never: Annāmalainagar sees virtually no snow, with about 0 frost days per year.

Has the climate of Annāmalainagar warmed?

Yes: Annāmalainagar warmed by +0.7 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Annāmalainagar?

The wettest day measured in Annāmalainagar between 1940 and 2025 was 6 December 1972, with 258 mm of rain in 24 hours.

What was the windiest day in Annāmalainagar?

The windiest day measured in Annāmalainagar between 1940 and 2025 was 4 December 1993, with winds reaching 58.7 km/h.

What is the warmest month in Annāmalainagar?

The warmest month in Annāmalainagar is May (30.5 °C on average); the coldest is January (24.9 °C).

How much does it rain in Annāmalainagar?

Annāmalainagar receives on average 1,036 mm of precipitation per year, spread over about 125 rainy days.

Is it sunny in Annāmalainagar?

Annāmalainagar gets on average 10.3 hours of sunshine per day, roughly 3,760 hours per year over 1940-2025.

Are there tropical nights in Annāmalainagar?

Yes: Annāmalainagar has on average 365 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Annāmalainagar?

In Annāmalainagar, between 1940 and 2025, the highest apparent temperature reached 44.1 °C on 31 May 2024, and the lowest was 16.7 °C on 9 December 2022.

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