Ulu Yam climate — normals and trends

Q: What is the climate of Ulu Yam?

Ulu Yam has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 24.4 °C and it receives 2,280 mm of precipitation per year.

Q: What is the hottest day ever recorded in Ulu Yam?

The hottest day measured in Ulu Yam between 1940 and 2025 was 4 March 2020, reaching 35.9 °C.

Q: What is the coldest day in Ulu Yam?

The coldest day measured in Ulu Yam between 1940 and 2025 was 9 January 1943, at 15.4 °C.

Q: Does it snow in Ulu Yam?

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

Q: Has the climate of Ulu Yam warmed?

Yes: Ulu Yam warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Ulu Yam?

The wettest day measured in Ulu Yam between 1940 and 2025 was 13 May 2020, with 173 mm of rain in 24 hours.

Q: What was the windiest day in Ulu Yam?

The windiest day measured in Ulu Yam between 1940 and 2025 was 10 April 1963, with winds reaching 17.8 km/h.

Q: What is the warmest month in Ulu Yam?

The warmest month in Ulu Yam is May (24.9 °C on average); the coldest is December (23.7 °C).

Q: How much does it rain in Ulu Yam?

Ulu Yam receives on average 2,280 mm of precipitation per year, spread over about 274 rainy days.

Q: Is it sunny in Ulu Yam?

Ulu Yam gets on average 9.9 hours of sunshine per day, roughly 3,614 hours per year over 1940-2025.

Ulu Yam (Malaysia) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 24.4 °C and it receives 2,280 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 (24.9 °C on average) and the coldest is December (23.7 °C). Rainfall peaks in November.

Ulu Yam averages 0 frost days, 104 hot days (≥ 30 °C) and 274 rainy days per year.

Ulu Yam has warmed by +2.4 °C between 1940 and 2025, or +0.28 °C per decade. This trend is statistically significant.

The hottest day of the period reached 35.9 °C (on 4 March 2020) and the coldest 15.4 °C (on 9 January 1943).

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

Ulu YamSelangor

coords: 3.45°, 101.64°
period: 1940–2025 · 86 yrs

AfTropical rainforestWarmest monthMayColdest monthDecemberWettest monthNovemberDriest monthJuly

Mean daily temperature

24.4°C

Average daily high

29.1°C

Average daily low

21.1°C

Annual rainfall

2,280mm

Sunshine / day

9.9h

Mean relative humidity

86%

Average peak wind

7.2km/h

Seasonal range

1.2°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

104 d/yr

Rainy days (≥ 1 mm)

274 d/yr

Annual snowfall

0.0 cm

Average feels-like high

34.5 °C

Average feels-like low

24.7 °C

Average peak gust

26.2 km/h

Tropical nights (≥ 20 °C)

317 d/yr

Solar radiation

18.3 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.4 °C

since 1940

+0.3 °C per decade · r² = 0.83 · 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

35.9 °C

4 March 2020

Coldest day

15.4 °C

9 January 1943

Wettest day

173 mm

13 May 2020

Windiest day

17.8 km/h

10 April 1963

Strongest gust

63.4 km/h

11 July 1986

Hottest feels-like

41.3 °C

6 March 2016

Coldest feels-like

15.7 °C

9 January 1943

Sunniest day

12.0 h

7 October 1945

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	34.5 °C8 November 2025	19.9 °C31 January 2025	25.4 °C	2,226 mm	206
2024	35.0 °C19 March 2024	20.7 °C12 July 2024	25.9 °C	3,264 mm	237
2023	34.8 °C19 June 2023	19.0 °C6 March 2023	25.6 °C	2,883 mm	203
2022	33.0 °C4 February 2022	19.7 °C14 January 2022	25.3 °C	2,349 mm	193
2021	34.3 °C26 February 2021	19.4 °C5 February 2021	25.2 °C	2,398 mm	159
2020	35.9 °C4 March 2020	20.8 °C27 December 2020	25.7 °C	2,700 mm	196
2019	34.9 °C12 February 2019	20.1 °C1 September 2019	25.8 °C	2,110 mm	258
2018	32.6 °C13 April 2018	19.4 °C13 January 2018	25.2 °C	2,541 mm	173
2017	32.7 °C17 April 2017	20.4 °C28 January 2017	25.3 °C	2,482 mm	162
2016	35.6 °C4 March 2016	20.4 °C12 December 2016	26.2 °C	1,974 mm	263
2015	33.4 °C3 March 2015	19.4 °C14 March 2015	25.4 °C	2,737 mm	201
2014	34.2 °C27 March 2014	17.8 °C1 February 2014	25.2 °C	2,724 mm	186
2013	32.9 °C4 August 2013	20.1 °C22 February 2013	25.3 °C	2,440 mm	195
2012	31.6 °C4 June 2012	20.0 °C7 January 2012	24.8 °C	2,792 mm	129
2011	32.4 °C9 May 2011	19.9 °C8 February 2011	24.8 °C	2,509 mm	111
2010	33.4 °C9 March 2010	19.7 °C20 February 2010	25.3 °C	2,546 mm	188
2009	33.2 °C4 August 2009	19.2 °C11 January 2009	25.1 °C	2,526 mm	178
2008	32.1 °C24 February 2008	18.8 °C19 February 2008	24.6 °C	2,846 mm	91
2007	32.0 °C27 March 2007	17.5 °C3 December 2007	24.7 °C	2,893 mm	117
2006	32.2 °C16 March 2006	20.0 °C26 January 2006	24.8 °C	2,573 mm	120
2005	35.8 °C9 February 2005	18.6 °C7 January 2005	25.9 °C	1,639 mm	237
2004	34.4 °C10 September 2004	19.1 °C15 December 2004	25.2 °C	1,856 mm	203
2003	32.3 °C22 April 2003	19.6 °C20 December 2003	24.9 °C	2,038 mm	158
2002	35.0 °C14 February 2002	18.6 °C4 January 2002	25.4 °C	1,910 mm	225
2001	33.6 °C14 October 2001	19.5 °C31 December 2001	24.8 °C	2,278 mm	143
2000	33.1 °C17 July 2000	18.7 °C28 January 2000	24.7 °C	2,553 mm	137
1999	32.8 °C9 August 1999	19.0 °C28 December 1999	24.5 °C	2,417 mm	88
1998	35.8 °C10 April 1998	19.7 °C9 December 1998	25.5 °C	2,318 mm	197
1997	32.2 °C21 April 1997	18.6 °C3 January 1997	24.6 °C	2,662 mm	111
1996	31.7 °C18 March 1996	18.4 °C4 January 1996	24.4 °C	2,629 mm	81
1995	32.9 °C10 March 1995	19.7 °C8 February 1995	24.6 °C	3,047 mm	101
1994	31.2 °C27 February 1994	18.7 °C18 January 1994	24.4 °C	2,508 mm	64
1993	31.5 °C28 May 1993	17.3 °C24 February 1993	24.3 °C	2,800 mm	67
1992	32.8 °C30 March 1992	18.5 °C13 January 1992	24.4 °C	2,100 mm	93
1991	32.6 °C10 March 1991	18.5 °C7 January 1991	24.3 °C	2,768 mm	108
1990	34.7 °C24 February 1990	17.3 °C4 January 1990	24.7 °C	2,235 mm	132
1989	31.3 °C3 June 1989	17.5 °C14 February 1989	24.1 °C	2,097 mm	67
1988	32.5 °C25 April 1988	18.8 °C18 December 1988	24.4 °C	2,691 mm	124
1987	35.1 °C28 February 1987	18.5 °C4 February 1987	24.6 °C	2,689 mm	129
1986	32.8 °C21 August 1986	17.7 °C11 February 1986	24.2 °C	2,075 mm	95
1985	32.4 °C23 January 1985	16.5 °C17 January 1985	24.2 °C	2,111 mm	110
1984	31.2 °C22 March 1984	18.8 °C10 January 1984	23.8 °C	2,746 mm	33
1983	35.3 °C25 April 1983	18.5 °C24 December 1983	24.9 °C	1,820 mm	162
1982	33.8 °C20 February 1982	17.5 °C28 July 1982	24.4 °C	1,794 mm	121
1981	32.9 °C3 August 1981	18.2 °C29 January 1981	24.3 °C	1,697 mm	118
1980	32.9 °C16 February 1980	17.6 °C4 January 1980	24.3 °C	1,943 mm	104
1979	34.9 °C31 January 1979	17.9 °C17 January 1979	24.6 °C	2,221 mm	162
1978	34.3 °C3 September 1978	18.2 °C4 January 1978	24.8 °C	1,406 mm	203
1977	33.9 °C11 April 1977	16.6 °C18 February 1977	24.4 °C	1,699 mm	140
1976	33.7 °C12 February 1976	17.4 °C9 January 1976	24.0 °C	1,649 mm	112
1975	32.9 °C17 October 1975	17.7 °C21 January 1975	24.0 °C	1,579 mm	116
1974	31.8 °C23 August 1974	17.4 °C16 January 1974	23.8 °C	1,665 mm	46
1973	33.0 °C6 March 1973	17.9 °C30 January 1973	24.0 °C	2,043 mm	81
1972	32.3 °C25 March 1972	16.4 °C3 January 1972	24.0 °C	2,113 mm	59
1971	33.7 °C22 April 1971	17.8 °C28 January 1971	23.9 °C	1,887 mm	86
1970	32.8 °C9 March 1970	17.5 °C13 July 1970	23.9 °C	2,074 mm	62
1969	31.9 °C7 March 1969	17.5 °C6 March 1969	23.9 °C	2,414 mm	60
1968	33.7 °C1 March 1968	17.3 °C20 February 1968	23.8 °C	2,095 mm	67
1967	31.1 °C24 March 1967	16.9 °C16 January 1967	23.5 °C	2,327 mm	28
1966	31.0 °C30 April 1966	17.4 °C25 February 1966	23.6 °C	2,565 mm	14
1965	32.3 °C7 March 1965	16.7 °C14 January 1965	23.9 °C	2,225 mm	77
1964	32.3 °C1 April 1964	17.9 °C2 February 1964	23.9 °C	1,933 mm	98
1963	35.1 °C2 May 1963	16.2 °C15 January 1963	24.1 °C	1,893 mm	128
1962	31.6 °C2 June 1962	17.5 °C7 February 1962	23.7 °C	1,884 mm	60
1961	32.6 °C4 March 1961	17.8 °C4 February 1961	24.0 °C	1,580 mm	111
1960	31.7 °C2 July 1960	18.2 °C27 January 1960	23.9 °C	1,928 mm	61
1959	33.3 °C6 March 1959	17.7 °C15 September 1959	23.9 °C	2,452 mm	47
1958	31.8 °C14 July 1958	16.9 °C27 February 1958	24.1 °C	2,069 mm	80
1957	30.9 °C14 April 1957	17.2 °C16 February 1957	23.7 °C	2,556 mm	27
1956	30.9 °C7 May 1956	16.8 °C24 January 1956	23.4 °C	2,670 mm	19
1955	31.1 °C5 June 1955	17.3 °C15 February 1955	23.5 °C	2,435 mm	23
1954	31.4 °C3 May 1954	18.5 °C21 December 1954	23.4 °C	2,866 mm	13
1953	30.6 °C20 June 1953	18.8 °C9 January 1953	23.8 °C	2,395 mm	19
1952	30.9 °C1 March 1952	18.7 °C22 February 1952	23.9 °C	2,308 mm	20
1951	32.2 °C3 April 1951	16.7 °C2 March 1951	23.8 °C	1,865 mm	17
1950	30.8 °C16 February 1950	18.5 °C22 January 1950	23.7 °C	2,224 mm	12
1949	32.1 °C2 February 1949	17.3 °C9 January 1949	24.4 °C	289 mm	102
1948	30.2 °C6 March 1948	16.6 °C18 January 1948	23.3 °C	1,976 mm	1
1947	28.9 °C16 March 1947	18.2 °C31 December 1947	23.1 °C	3,183 mm	0
1946	29.7 °C8 July 1946	17.1 °C28 January 1946	23.2 °C	2,571 mm	0
1945	28.8 °C12 June 1945	17.8 °C30 December 1945	22.9 °C	3,109 mm	0
1944	31.0 °C17 February 1944	16.5 °C8 February 1944	23.3 °C	1,834 mm	15
1943	30.6 °C1 March 1943	15.4 °C9 January 1943	23.1 °C	2,025 mm	9
1942	29.4 °C14 March 1942	16.8 °C18 February 1942	22.9 °C	2,322 mm	0
1941	29.1 °C27 February 1941	17.8 °C15 January 1941	23.1 °C	2,771 mm	0
1940	31.5 °C3 March 1940	16.6 °C24 January 1940	23.3 °C	2,032 mm	9

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

29.9 °C

+0.8 °C

Hot days (≥ 30 °C)

206 d/yr

+102

Frost days (< 0 °C)

0 d/yr

Annual rainfall

2226 mm

-54 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	28.7 °C	+0.2 °C	205 mm	+62 mm
Feb	29.9 °C	+0.3 °C	129 mm	-5 mm
Mar	29.9 °C	0.0 °C	225 mm	+22 mm
Apr	30.4 °C	+0.6 °C	278 mm	+41 mm
May	30.5 °C	+0.9 °C	164 mm	-36 mm
Jun	30.6 °C	+1.3 °C	84 mm	-43 mm
Jul	30.5 °C	+1.5 °C	65 mm	-59 mm
Aug	30.2 °C	+1.2 °C	101 mm	-51 mm
Sep	29.6 °C	+0.8 °C	152 mm	-40 mm
Oct	30.2 °C	+1.4 °C	168 mm	-93 mm
Nov	29.4 °C	+1.0 °C	440 mm	+151 mm
Dec	29.0 °C	+0.9 °C	217 mm	-2 mm

The year's extremes

Hottest day

34.5 °C

8 Nov 2025

Coldest day

19.9 °C

31 Jan 2025

Wettest day

104.2 mm

16 Nov 2025

Windiest day

16.1 km/h

20 Jul 2025

Strongest gust

50.4 km/h

12 Jan 2025

Hottest feels-like

41.0 °C

17 May 2025

Coldest feels-like

22.2 °C

31 Jan 2025

Sunniest day

11.9 h

13 Oct 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 Ulu Yam?

Ulu Yam has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 24.4 °C and it receives 2,280 mm of precipitation per year.

What is the hottest day ever recorded in Ulu Yam?

The hottest day measured in Ulu Yam between 1940 and 2025 was 4 March 2020, reaching 35.9 °C.

What is the coldest day in Ulu Yam?

The coldest day measured in Ulu Yam between 1940 and 2025 was 9 January 1943, at 15.4 °C.

Does it snow in Ulu Yam?

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

Has the climate of Ulu Yam warmed?

Yes: Ulu Yam warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Ulu Yam?

The wettest day measured in Ulu Yam between 1940 and 2025 was 13 May 2020, with 173 mm of rain in 24 hours.

What was the windiest day in Ulu Yam?

The windiest day measured in Ulu Yam between 1940 and 2025 was 10 April 1963, with winds reaching 17.8 km/h.

What is the warmest month in Ulu Yam?

The warmest month in Ulu Yam is May (24.9 °C on average); the coldest is December (23.7 °C).

How much does it rain in Ulu Yam?

Ulu Yam receives on average 2,280 mm of precipitation per year, spread over about 274 rainy days.

Is it sunny in Ulu Yam?

Ulu Yam gets on average 9.9 hours of sunshine per day, roughly 3,614 hours per year over 1940-2025.

Are there tropical nights in Ulu Yam?

Yes: Ulu Yam has on average 317 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Ulu Yam?

In Ulu Yam, between 1940 and 2025, the highest apparent temperature reached 41.3 °C on 6 March 2016, and the lowest was 15.7 °C on 9 January 1943.

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