Palmerston climate — normals and trends

Q: What is the climate of Palmerston?

Palmerston has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.1 °C and it receives 1,810 mm of precipitation per year.

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

The hottest day measured in Palmerston between 1940 and 2025 was 24 October 1943, reaching 40.7 °C.

Q: What is the coldest day in Palmerston?

The coldest day measured in Palmerston between 1940 and 2025 was 4 August 1990, at 8.3 °C.

Q: Does it snow in Palmerston?

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

Q: Has the climate of Palmerston warmed?

Yes: Palmerston warmed by +0.5 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Palmerston?

The wettest day measured in Palmerston between 1940 and 2025 was 22 November 2025, with 190 mm of rain in 24 hours.

Q: What was the windiest day in Palmerston?

The windiest day measured in Palmerston between 1940 and 2025 was 5 January 2008, with winds reaching 54.4 km/h.

Q: What is the warmest month in Palmerston?

The warmest month in Palmerston is October (29.1 °C on average); the coldest is July (24.5 °C).

Q: How much does it rain in Palmerston?

Palmerston receives on average 1,810 mm of precipitation per year, spread over about 153 rainy days.

Q: Is it sunny in Palmerston?

Palmerston gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.

Palmerston (Australia) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.1 °C and it receives 1,810 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 October (29.1 °C on average) and the coldest is July (24.5 °C). Rainfall peaks in February.

Palmerston averages 0 frost days, 325 hot days (≥ 30 °C) and 153 rainy days per year.

Palmerston has warmed by +0.5 °C between 1940 and 2025, or +0.06 °C per decade. This trend is statistically significant.

The hottest day of the period reached 40.7 °C (on 24 October 1943) and the coldest 8.3 °C (on 4 August 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

PalmerstonNorthern Territory

coords: -12.49°, 130.98°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthOctoberColdest monthJulyWettest monthFebruaryDriest monthAugust

Mean daily temperature

27.1°C

Average daily high

32.7°C

Average daily low

22.8°C

Annual rainfall

1,810mm

Sunshine / day

10.7h

Mean relative humidity

70%

Average peak wind

13.4km/h

Seasonal range

4.6°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

325 d/yr

Rainy days (≥ 1 mm)

153 d/yr

Annual snowfall

0.0 cm

Average feels-like high

36.4 °C

Average feels-like low

26.1 °C

Average peak gust

32.9 km/h

Tropical nights (≥ 20 °C)

301 d/yr

Solar radiation

21.2 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+0.5 °C

since 1940

+0.1 °C per decade · r² = 0.14 · 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

40.7 °C

24 October 1943

Coldest day

8.3 °C

4 August 1990

Wettest day

190 mm

22 November 2025

Windiest day

54.4 km/h

5 January 2008

Strongest gust

115.2 km/h

5 January 2008

Hottest feels-like

45.9 °C

26 October 1987

Coldest feels-like

5.1 °C

4 August 1990

Sunniest day

12.7 h

4 January 2024

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	38.7 °C4 October 2025	13.0 °C4 July 2025	27.2 °C	2,508 mm	342
2024	38.4 °C10 October 2024	12.5 °C19 July 2024	27.7 °C	2,176 mm	346
2023	38.6 °C19 October 2023	11.9 °C25 July 2023	27.4 °C	1,627 mm	342
2022	37.1 °C21 September 2022	12.3 °C24 July 2022	27.3 °C	1,928 mm	325
2021	37.7 °C18 October 2021	15.2 °C22 July 2021	27.5 °C	2,011 mm	344
2020	37.2 °C2 November 2020	14.6 °C31 July 2020	27.6 °C	1,682 mm	345
2019	39.2 °C20 October 2019	11.8 °C27 June 2019	27.2 °C	1,133 mm	348
2018	37.8 °C18 September 2018	13.1 °C24 July 2018	27.3 °C	1,810 mm	353
2017	37.5 °C12 October 2017	15.6 °C22 July 2017	27.4 °C	1,907 mm	339
2016	36.8 °C8 October 2016	11.9 °C18 July 2016	27.9 °C	1,531 mm	351
2015	38.1 °C11 November 2015	13.4 °C18 August 2015	27.2 °C	1,830 mm	333
2014	38.7 °C4 November 2014	12.4 °C24 August 2014	27.1 °C	1,884 mm	339
2013	38.1 °C16 October 2013	13.2 °C8 August 2013	27.4 °C	1,569 mm	345
2012	37.8 °C11 October 2012	12.0 °C14 August 2012	26.7 °C	1,682 mm	320
2011	37.4 °C14 October 2011	11.4 °C14 June 2011	26.2 °C	2,903 mm	297
2010	37.2 °C24 September 2010	14.3 °C5 June 2010	27.5 °C	2,096 mm	341
2009	38.2 °C17 October 2009	12.1 °C20 June 2009	27.3 °C	1,702 mm	341
2008	39.0 °C22 October 2008	11.8 °C27 July 2008	27.0 °C	1,936 mm	334
2007	37.6 °C12 October 2007	10.7 °C1 July 2007	27.0 °C	2,112 mm	326
2006	38.2 °C31 October 2006	13.2 °C20 July 2006	26.6 °C	1,811 mm	304
2005	38.1 °C11 October 2005	13.8 °C1 July 2005	27.5 °C	1,264 mm	348
2004	38.5 °C11 October 2004	11.3 °C20 June 2004	26.9 °C	1,718 mm	312
2003	38.9 °C3 November 2003	12.6 °C28 June 2003	27.5 °C	1,975 mm	337
2002	39.1 °C16 October 2002	12.4 °C17 August 2002	27.5 °C	1,262 mm	348
2001	37.3 °C2 November 2001	12.6 °C1 August 2001	27.0 °C	1,836 mm	342
2000	37.4 °C25 November 2000	12.7 °C3 June 2000	26.8 °C	2,314 mm	316
1999	36.7 °C13 October 1999	12.7 °C28 July 1999	26.6 °C	2,308 mm	328
1998	37.2 °C11 October 1998	13.8 °C30 August 1998	27.9 °C	1,976 mm	344
1997	37.2 °C10 September 1997	14.1 °C17 August 1997	27.1 °C	2,052 mm	335
1996	38.9 °C2 October 1996	12.4 °C29 July 1996	27.3 °C	1,908 mm	351
1995	37.9 °C27 September 1995	13.2 °C30 July 1995	27.2 °C	2,340 mm	337
1994	39.0 °C9 November 1994	12.0 °C4 August 1994	27.0 °C	1,586 mm	340
1993	40.3 °C2 November 1993	12.1 °C14 July 1993	27.7 °C	1,450 mm	345
1992	38.0 °C11 October 1992	14.5 °C29 June 1992	27.6 °C	1,424 mm	349
1991	39.6 °C11 October 1991	12.5 °C31 July 1991	27.3 °C	1,596 mm	330
1990	39.3 °C3 November 1990	8.3 °C4 August 1990	27.3 °C	1,447 mm	328
1989	38.8 °C22 September 1989	14.0 °C21 August 1989	27.5 °C	1,678 mm	335
1988	39.0 °C13 September 1988	15.9 °C18 June 1988	28.1 °C	1,659 mm	347
1987	39.5 °C28 October 1987	16.6 °C31 July 1987	27.9 °C	1,582 mm	341
1986	39.5 °C27 September 1986	13.0 °C9 August 1986	27.6 °C	1,546 mm	334
1985	38.7 °C20 September 1985	14.0 °C20 July 1985	27.3 °C	1,509 mm	327
1984	37.3 °C9 October 1984	14.1 °C29 July 1984	27.2 °C	2,126 mm	327
1983	39.2 °C17 September 1983	13.9 °C8 July 1983	27.4 °C	1,700 mm	335
1982	40.5 °C18 October 1982	15.7 °C15 July 1982	27.2 °C	1,646 mm	330
1981	38.7 °C22 October 1981	17.6 °C2 August 1981	27.9 °C	1,845 mm	339
1980	39.0 °C21 September 1980	15.5 °C27 July 1980	27.4 °C	1,826 mm	336
1979	38.3 °C17 November 1979	16.7 °C31 July 1979	27.7 °C	1,440 mm	346
1978	36.0 °C23 December 1978	11.9 °C16 July 1978	27.3 °C	1,778 mm	335
1977	37.0 °C11 October 1977	14.7 °C29 June 1977	26.6 °C	1,796 mm	289
1976	37.1 °C7 September 1976	14.8 °C23 June 1976	26.6 °C	1,993 mm	294
1975	37.5 °C20 September 1975	14.7 °C22 June 1975	26.8 °C	2,439 mm	309
1974	37.7 °C28 October 1974	13.9 °C10 July 1974	26.4 °C	2,308 mm	267
1973	38.4 °C6 October 1973	16.1 °C13 August 1973	27.6 °C	1,635 mm	329
1972	37.6 °C8 October 1972	16.1 °C9 July 1972	27.1 °C	1,539 mm	338
1971	37.5 °C11 October 1971	13.2 °C31 July 1971	26.8 °C	1,745 mm	310
1970	37.6 °C8 September 1970	14.6 °C25 July 1970	27.5 °C	1,514 mm	342
1969	37.2 °C5 December 1969	15.9 °C12 June 1969	27.0 °C	1,702 mm	313
1968	37.3 °C16 November 1968	15.6 °C18 August 1968	26.7 °C	2,241 mm	270
1967	36.0 °C30 September 1967	14.8 °C28 July 1967	26.5 °C	1,716 mm	272
1966	35.5 °C23 October 1966	15.7 °C20 July 1966	27.0 °C	1,465 mm	310
1965	36.9 °C8 November 1965	12.4 °C20 July 1965	26.4 °C	2,111 mm	282
1964	35.0 °C20 September 1964	14.3 °C6 July 1964	26.9 °C	1,951 mm	323
1963	35.5 °C23 November 1963	13.1 °C24 June 1963	26.5 °C	2,041 mm	301
1962	35.9 °C11 October 1962	17.2 °C4 August 1962	27.3 °C	1,612 mm	328
1961	35.9 °C27 October 1961	15.6 °C28 July 1961	26.8 °C	1,788 mm	318
1960	36.0 °C9 October 1960	15.5 °C15 July 1960	26.5 °C	2,185 mm	279
1959	38.8 °C23 October 1959	14.6 °C27 July 1959	27.1 °C	1,940 mm	324
1958	38.8 °C16 November 1958	14.1 °C3 July 1958	27.6 °C	1,557 mm	353
1957	38.5 °C25 October 1957	13.6 °C17 August 1957	26.8 °C	1,746 mm	309
1956	36.0 °C23 September 1956	15.6 °C11 June 1956	26.8 °C	2,226 mm	286
1955	37.4 °C15 October 1955	17.3 °C5 July 1955	27.2 °C	1,664 mm	322
1954	35.6 °C28 September 1954	14.4 °C13 July 1954	26.9 °C	1,965 mm	305
1953	36.7 °C9 October 1953	14.6 °C6 August 1953	26.9 °C	1,472 mm	296
1952	37.0 °C7 October 1952	14.2 °C9 August 1952	27.5 °C	1,403 mm	344
1951	37.4 °C9 November 1951	15.5 °C22 July 1951	27.1 °C	1,595 mm	330
1950	36.5 °C6 October 1950	14.6 °C26 June 1950	26.8 °C	2,193 mm	312
1949	35.3 °C15 September 1949	14.1 °C19 June 1949	26.4 °C	2,048 mm	290
1948	37.0 °C15 October 1948	15.2 °C18 June 1948	27.0 °C	1,580 mm	322
1947	37.0 °C20 October 1947	16.0 °C22 July 1947	27.0 °C	1,442 mm	337
1946	39.2 °C25 October 1946	15.7 °C21 July 1946	27.0 °C	1,410 mm	322
1945	37.4 °C13 October 1945	14.4 °C19 July 1945	26.9 °C	2,105 mm	315
1944	39.2 °C18 October 1944	16.9 °C28 May 1944	26.6 °C	2,155 mm	291
1943	40.7 °C24 October 1943	15.1 °C30 August 1943	26.8 °C	1,539 mm	289
1942	38.3 °C19 September 1942	16.1 °C10 August 1942	27.4 °C	1,651 mm	335
1941	37.1 °C30 October 1941	14.9 °C24 July 1941	26.7 °C	1,755 mm	319
1940	37.7 °C4 November 1940	15.3 °C20 July 1940	26.6 °C	1,771 mm	321

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

33.1 °C

+0.4 °C

Hot days (≥ 30 °C)

342 d/yr

+17

Frost days (< 0 °C)

0 d/yr

Annual rainfall

2508 mm

+698 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	33.0 °C	+1.5 °C	426 mm	+29 mm
Feb	32.5 °C	+1.4 °C	370 mm	-37 mm
Mar	32.4 °C	+0.5 °C	369 mm	+62 mm
Apr	32.5 °C	-0.3 °C	150 mm	+58 mm
May	32.8 °C	+0.2 °C	26 mm	+10 mm
Jun	31.5 °C	+0.1 °C	0 mm	-3 mm
Jul	32.6 °C	+1.2 °C	2 mm	-1 mm
Aug	33.4 °C	+0.7 °C	0 mm	-2 mm
Sep	34.9 °C	+0.3 °C	31 mm	+16 mm
Oct	35.7 °C	+0.6 °C	89 mm	+26 mm
Nov	32.8 °C	-1.3 °C	632 mm	+443 mm
Dec	32.9 °C	+0.3 °C	414 mm	+96 mm

The year's extremes

Hottest day

38.7 °C

4 Oct 2025

Coldest day

13.0 °C

4 Jul 2025

Wettest day

189.8 mm

22 Nov 2025

Windiest day

42.3 km/h

22 Nov 2025

Strongest gust

99.7 km/h

22 Nov 2025

Hottest feels-like

44.8 °C

6 Mar 2025

Coldest feels-like

10.7 °C

6 Aug 2025

Sunniest day

12.6 h

20 Jan 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 Palmerston?

Palmerston has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.1 °C and it receives 1,810 mm of precipitation per year.

What is the hottest day ever recorded in Palmerston?

The hottest day measured in Palmerston between 1940 and 2025 was 24 October 1943, reaching 40.7 °C.

What is the coldest day in Palmerston?

The coldest day measured in Palmerston between 1940 and 2025 was 4 August 1990, at 8.3 °C.

Does it snow in Palmerston?

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

Has the climate of Palmerston warmed?

Yes: Palmerston warmed by +0.5 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Palmerston?

The wettest day measured in Palmerston between 1940 and 2025 was 22 November 2025, with 190 mm of rain in 24 hours.

What was the windiest day in Palmerston?

The windiest day measured in Palmerston between 1940 and 2025 was 5 January 2008, with winds reaching 54.4 km/h.

What is the warmest month in Palmerston?

The warmest month in Palmerston is October (29.1 °C on average); the coldest is July (24.5 °C).

How much does it rain in Palmerston?

Palmerston receives on average 1,810 mm of precipitation per year, spread over about 153 rainy days.

Is it sunny in Palmerston?

Palmerston gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.

Are there tropical nights in Palmerston?

Yes: Palmerston has on average 301 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Palmerston?

In Palmerston, between 1940 and 2025, the highest apparent temperature reached 45.9 °C on 26 October 1987, and the lowest was 5.1 °C on 4 August 1990.

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