Carolina climate — normals and trends

Q: What is the climate of Carolina?

Carolina has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.8 °C and it receives 978 mm of precipitation per year.

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

The hottest day measured in Carolina between 1940 and 2025 was 4 October 2015, reaching 33.7 °C.

Q: What is the coldest day in Carolina?

The coldest day measured in Carolina between 1940 and 2025 was 12 March 1951, at 18.5 °C.

Q: Does it snow in Carolina?

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

Q: Has the climate of Carolina warmed?

Yes: Carolina warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Carolina?

The wettest day measured in Carolina between 1940 and 2025 was 20 September 2017, with 152 mm of rain in 24 hours.

Q: What was the windiest day in Carolina?

The windiest day measured in Carolina between 1940 and 2025 was 20 September 2017, with winds reaching 77.5 km/h.

Q: What is the warmest month in Carolina?

The warmest month in Carolina is August (27.2 °C on average); the coldest is January (24.1 °C).

Q: How much does it rain in Carolina?

Carolina receives on average 978 mm of precipitation per year, spread over about 191 rainy days.

Q: Is it sunny in Carolina?

Carolina gets on average 11.3 hours of sunshine per day, roughly 4,125 hours per year over 1940-2025.

Carolina (Puerto Rico) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.8 °C and it receives 978 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 August (27.2 °C on average) and the coldest is January (24.1 °C). Rainfall peaks in October.

Carolina averages 0 frost days, 70 hot days (≥ 30 °C) and 191 rainy days per year.

Carolina has warmed by +1.3 °C between 1940 and 2025, or +0.16 °C per decade. This trend is statistically significant.

The hottest day of the period reached 33.7 °C (on 4 October 2015) and the coldest 18.5 °C (on 12 March 1951).

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

CarolinaCarolina

coords: 18.38°, -65.96°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthAugustColdest monthJanuaryWettest monthOctoberDriest monthFebruary

Mean daily temperature

25.8°C

Average daily high

28.4°C

Average daily low

23.7°C

Annual rainfall

978mm

Sunshine / day

11.3h

Mean relative humidity

80%

Average peak wind

19.3km/h

Seasonal range

3.1°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

70 d/yr

Rainy days (≥ 1 mm)

191 d/yr

Annual snowfall

0.0 cm

Average feels-like high

31.8 °C

Average feels-like low

26.7 °C

Average peak gust

35.3 km/h

Tropical nights (≥ 20 °C)

363 d/yr

Solar radiation

20.5 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.3 °C

since 1940

+0.2 °C per decade · r² = 0.70 · 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

33.7 °C

4 October 2015

Coldest day

18.5 °C

12 March 1951

Wettest day

152 mm

20 September 2017

Windiest day

77.5 km/h

20 September 2017

Strongest gust

142.2 km/h

20 September 2017

Hottest feels-like

39.8 °C

24 August 2023

Coldest feels-like

17.2 °C

16 January 2000

Sunniest day

13.0 h

13 June 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	32.6 °C28 September 2025	21.0 °C29 December 2025	26.6 °C	937 mm	106
2024	33.2 °C10 October 2024	21.7 °C8 February 2024	27.1 °C	1,391 mm	167
2023	33.4 °C13 September 2023	21.2 °C28 February 2023	26.8 °C	972 mm	155
2022	32.1 °C5 June 2022	21.0 °C5 February 2022	26.2 °C	1,127 mm	85
2021	31.9 °C19 May 2021	21.9 °C4 March 2021	26.4 °C	688 mm	98
2020	32.0 °C21 June 2020	21.5 °C27 March 2020	26.6 °C	829 mm	132
2019	32.3 °C26 September 2019	21.8 °C26 January 2019	26.5 °C	627 mm	111
2018	30.9 °C4 July 2018	20.9 °C26 February 2018	26.0 °C	782 mm	51
2017	31.8 °C10 September 2017	20.6 °C19 January 2017	26.3 °C	1,310 mm	77
2016	31.5 °C7 August 2016	21.8 °C5 February 2016	26.4 °C	1,131 mm	109
2015	33.7 °C4 October 2015	22.0 °C20 January 2015	26.6 °C	568 mm	148
2014	31.9 °C1 July 2014	21.9 °C5 March 2014	26.4 °C	752 mm	130
2013	32.3 °C29 September 2013	21.4 °C11 March 2013	26.1 °C	1,039 mm	64
2012	32.6 °C27 October 2012	21.2 °C18 February 2012	26.2 °C	987 mm	117
2011	31.3 °C14 August 2011	21.2 °C23 February 2011	25.8 °C	1,349 mm	53
2010	32.4 °C5 August 2010	20.9 °C24 December 2010	26.3 °C	1,265 mm	97
2009	31.9 °C21 August 2009	20.8 °C7 March 2009	26.1 °C	859 mm	100
2008	32.1 °C5 September 2008	20.7 °C10 January 2008	25.8 °C	1,038 mm	81
2007	31.7 °C9 October 2007	21.6 °C10 January 2007	26.2 °C	1,127 mm	101
2006	31.9 °C30 September 2006	21.2 °C1 February 2006	26.1 °C	1,024 mm	78
2005	32.3 °C21 May 2005	19.8 °C23 January 2005	26.1 °C	1,445 mm	93
2004	31.7 °C24 September 2004	19.8 °C29 March 2004	25.8 °C	1,068 mm	78
2003	32.0 °C14 September 2003	20.6 °C30 December 2003	26.1 °C	1,086 mm	80
2002	31.8 °C6 September 2002	21.0 °C11 April 2002	26.0 °C	717 mm	96
2001	32.3 °C1 October 2001	20.2 °C27 February 2001	26.0 °C	777 mm	102
2000	31.3 °C15 July 2000	18.7 °C21 January 2000	25.6 °C	651 mm	73
1999	31.3 °C1 May 1999	19.9 °C1 February 1999	25.6 °C	1,142 mm	62
1998	32.0 °C12 May 1998	21.6 °C12 February 1998	26.2 °C	1,152 mm	96
1997	32.5 °C10 September 1997	20.6 °C6 April 1997	26.0 °C	640 mm	118
1996	31.3 °C4 July 1996	20.1 °C17 December 1996	25.4 °C	1,184 mm	35
1995	32.4 °C29 June 1995	19.7 °C25 March 1995	26.1 °C	722 mm	120
1994	32.5 °C4 October 1994	20.9 °C30 December 1994	26.1 °C	606 mm	112
1993	31.9 °C3 June 1993	20.2 °C21 February 1993	25.9 °C	907 mm	90
1992	32.2 °C28 April 1992	21.1 °C30 January 1992	25.8 °C	972 mm	52
1991	32.3 °C3 September 1991	20.1 °C6 February 1991	25.7 °C	685 mm	78
1990	32.6 °C23 May 1990	20.2 °C6 February 1990	25.7 °C	759 mm	91
1989	31.2 °C20 May 1989	20.4 °C29 January 1989	25.4 °C	777 mm	43
1988	32.7 °C5 June 1988	20.8 °C1 April 1988	25.7 °C	896 mm	68
1987	32.2 °C26 September 1987	20.5 °C9 January 1987	26.0 °C	1,257 mm	79
1986	30.9 °C9 July 1986	19.9 °C26 February 1986	25.5 °C	961 mm	49
1985	31.5 °C27 June 1985	20.1 °C11 March 1985	25.4 °C	848 mm	74
1984	31.6 °C11 April 1984	20.2 °C19 December 1984	25.5 °C	842 mm	62
1983	31.7 °C23 June 1983	21.0 °C4 February 1983	26.1 °C	954 mm	89
1982	31.9 °C3 May 1982	20.4 °C18 December 1982	25.5 °C	886 mm	50
1981	32.2 °C1 September 1981	20.7 °C6 April 1981	25.9 °C	1,254 mm	88
1980	32.3 °C21 August 1980	20.4 °C22 January 1980	26.2 °C	847 mm	106
1979	31.0 °C22 October 1979	19.7 °C7 March 1979	25.5 °C	1,391 mm	41
1978	31.4 °C10 September 1978	21.2 °C13 February 1978	26.0 °C	893 mm	80
1977	31.3 °C14 May 1977	21.2 °C28 March 1977	25.8 °C	868 mm	44
1976	31.4 °C24 August 1976	20.0 °C29 January 1976	25.5 °C	711 mm	51
1975	32.1 °C7 June 1975	20.9 °C15 January 1975	25.6 °C	858 mm	57
1974	32.0 °C23 June 1974	21.3 °C30 April 1974	25.7 °C	943 mm	68
1973	31.9 °C27 May 1973	21.3 °C10 February 1973	26.1 °C	905 mm	86
1972	32.3 °C2 August 1972	20.5 °C14 March 1972	26.0 °C	915 mm	77
1971	32.4 °C26 September 1971	21.1 °C5 February 1971	25.8 °C	818 mm	87
1970	31.7 °C17 July 1970	19.7 °C6 March 1970	25.8 °C	1,181 mm	28
1969	32.6 °C2 September 1969	19.5 °C25 February 1969	25.9 °C	1,008 mm	89
1968	31.8 °C1 October 1968	19.1 °C5 February 1968	25.6 °C	632 mm	77
1967	31.7 °C2 September 1967	20.2 °C28 March 1967	25.6 °C	666 mm	53
1966	31.8 °C27 August 1966	21.1 °C19 January 1966	25.6 °C	809 mm	61
1965	31.8 °C1 September 1965	19.4 °C8 January 1965	25.4 °C	900 mm	42
1964	32.6 °C10 June 1964	20.0 °C30 December 1964	25.8 °C	793 mm	64
1963	31.7 °C10 October 1963	20.6 °C7 January 1963	25.6 °C	1,081 mm	38
1962	31.2 °C7 August 1962	19.9 °C16 February 1962	25.4 °C	871 mm	37
1961	31.1 °C25 May 1961	20.9 °C2 February 1961	25.4 °C	1,054 mm	20
1960	31.3 °C10 June 1960	20.5 °C21 January 1960	25.7 °C	987 mm	53
1959	31.6 °C30 August 1959	20.6 °C18 February 1959	25.6 °C	875 mm	68
1958	31.2 °C28 March 1958	20.3 °C16 January 1958	25.9 °C	1,186 mm	60
1957	31.9 °C11 June 1957	19.8 °C3 March 1957	25.6 °C	805 mm	65
1956	31.4 °C12 April 1956	19.2 °C15 January 1956	25.2 °C	900 mm	37
1955	31.3 °C8 August 1955	19.2 °C5 January 1955	25.1 °C	992 mm	20
1954	31.1 °C2 June 1954	20.1 °C4 February 1954	25.0 °C	1,028 mm	25
1953	31.1 °C27 August 1953	19.9 °C3 January 1953	25.4 °C	906 mm	45
1952	31.4 °C4 June 1952	19.3 °C18 January 1952	25.4 °C	921 mm	63
1951	31.4 °C9 September 1951	18.5 °C12 March 1951	25.1 °C	1,188 mm	47
1950	31.0 °C31 July 1950	19.2 °C28 January 1950	24.7 °C	1,026 mm	22
1949	31.4 °C19 August 1949	19.0 °C26 February 1949	25.1 °C	847 mm	49
1948	31.5 °C29 April 1948	19.9 °C20 February 1948	25.2 °C	1,343 mm	10
1947	31.0 °C11 June 1947	20.2 °C18 February 1947	25.4 °C	1,001 mm	40
1946	31.0 °C25 August 1946	20.0 °C7 March 1946	25.2 °C	1,085 mm	37
1945	30.4 °C11 September 1945	19.2 °C15 January 1945	24.9 °C	1,192 mm	2
1944	31.2 °C10 September 1944	19.9 °C1 March 1944	25.2 °C	1,211 mm	34
1943	30.6 °C23 August 1943	19.8 °C24 January 1943	24.9 °C	1,030 mm	26
1942	31.1 °C20 September 1942	19.8 °C28 January 1942	25.1 °C	1,533 mm	10
1941	30.5 °C28 March 1941	20.1 °C12 January 1941	25.1 °C	1,500 mm	9
1940	31.7 °C23 April 1940	19.9 °C6 March 1940	25.1 °C	1,429 mm	24

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

29.0 °C

+0.6 °C

Hot days (≥ 30 °C)

106 d/yr

+36

Frost days (< 0 °C)

0 d/yr

Annual rainfall

937 mm

-41 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	27.4 °C	+0.7 °C	46 mm	+5 mm
Feb	27.6 °C	+0.7 °C	35 mm	-1 mm
Mar	28.2 °C	+0.7 °C	53 mm	+16 mm
Apr	28.0 °C	-0.1 °C	135 mm	+61 mm
May	28.7 °C	-0.1 °C	122 mm	+7 mm
Jun	29.8 °C	+0.2 °C	21 mm	-53 mm
Jul	30.2 °C	+0.5 °C	42 mm	-39 mm
Aug	30.6 °C	+0.7 °C	85 mm	-16 mm
Sep	30.4 °C	+0.7 °C	179 mm	+51 mm
Oct	30.1 °C	+0.8 °C	118 mm	-14 mm
Nov	28.9 °C	+0.9 °C	72 mm	-33 mm
Dec	28.1 °C	+1.0 °C	29 mm	-24 mm

The year's extremes

Hottest day

32.6 °C

28 Sep 2025

Coldest day

21.0 °C

29 Dec 2025

Wettest day

38.4 mm

24 Sep 2025

Windiest day

31.6 km/h

3 Apr 2025

Strongest gust

51.5 km/h

3 Apr 2025

Hottest feels-like

39.0 °C

18 Oct 2025

Coldest feels-like

23.3 °C

29 Dec 2025

Sunniest day

13.0 h

13 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 Carolina?

Carolina has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.8 °C and it receives 978 mm of precipitation per year.

What is the hottest day ever recorded in Carolina?

The hottest day measured in Carolina between 1940 and 2025 was 4 October 2015, reaching 33.7 °C.

What is the coldest day in Carolina?

The coldest day measured in Carolina between 1940 and 2025 was 12 March 1951, at 18.5 °C.

Does it snow in Carolina?

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

Has the climate of Carolina warmed?

Yes: Carolina warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Carolina?

The wettest day measured in Carolina between 1940 and 2025 was 20 September 2017, with 152 mm of rain in 24 hours.

What was the windiest day in Carolina?

The windiest day measured in Carolina between 1940 and 2025 was 20 September 2017, with winds reaching 77.5 km/h.

What is the warmest month in Carolina?

The warmest month in Carolina is August (27.2 °C on average); the coldest is January (24.1 °C).

How much does it rain in Carolina?

Carolina receives on average 978 mm of precipitation per year, spread over about 191 rainy days.

Is it sunny in Carolina?

Carolina gets on average 11.3 hours of sunshine per day, roughly 4,125 hours per year over 1940-2025.

Are there tropical nights in Carolina?

Yes: Carolina has on average 363 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Carolina?

In Carolina, between 1940 and 2025, the highest apparent temperature reached 39.8 °C on 24 August 2023, and the lowest was 17.2 °C on 16 January 2000.

Compare Carolina with another city

Pick a second city: its normals will be set against these, indicator by indicator.

Nearby cities

The climate around Carolina

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