Xi'an climate — normals and trends

Q: What is the climate of Xi'an?

Xi'an has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 14.4 °C and it receives 1,007 mm of precipitation per year.

Q: What is the hottest day ever recorded in Xi'an?

The hottest day measured in Xi'an between 1940 and 2025 was 12 July 2002, reaching 41.8 °C.

Q: What is the coldest day in Xi'an?

The coldest day measured in Xi'an between 1940 and 2025 was 10 January 1955, at -19.8 °C.

Q: Does it snow in Xi'an?

Yes. Xi'an gets on average 25.6 cm of snow per year and has around 76 frost days.

Q: Has the climate of Xi'an warmed?

Yes: Xi'an warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Xi'an?

The wettest day measured in Xi'an between 1940 and 2025 was 10 July 1946, with 218 mm of rain in 24 hours.

Q: What was the windiest day in Xi'an?

The windiest day measured in Xi'an between 1940 and 2025 was 23 April 1958, with winds reaching 31.8 km/h.

Q: What is the warmest month in Xi'an?

The warmest month in Xi'an is July (27.0 °C on average); the coldest is January (0.5 °C).

Q: How much does it rain in Xi'an?

Xi'an receives on average 1,007 mm of precipitation per year, spread over about 103 rainy days.

Q: Is it sunny in Xi'an?

Xi'an gets on average 8.6 hours of sunshine per day, roughly 3,139 hours per year over 1940-2025.

Xi'an (China) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 14.4 °C and it receives 1,007 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 (27.0 °C on average) and the coldest is January (0.5 °C). Rainfall peaks in July.

Xi'an averages 76 frost days, 71 hot days (≥ 30 °C) and 103 rainy days per year.

Xi'an has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.

The number of frost days there went from about 88 to 64 per year over the period.

The hottest day of the period reached 41.8 °C (on 12 July 2002) and the coldest -19.8 °C (on 10 January 1955).

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

Xi'anShaanxi

coords: 34.26°, 108.93°
period: 1940–2025 · 86 yrs

CwaHumid subtropical, dry winterWarmest monthJulyColdest monthJanuaryWettest monthJulyDriest monthDecember

Mean daily temperature

14.4°C

Average daily high

19.6°C

Average daily low

9.8°C

Annual rainfall

1,007mm

Sunshine / day

8.6h

Mean relative humidity

66%

Average peak wind

9.2km/h

Seasonal range

26.5°C

Frost days (< 0 °C)

76 d/yr

Hot days (≥ 30 °C)

71 d/yr

Rainy days (≥ 1 mm)

103 d/yr

Annual snowfall

25.6 cm

Average feels-like high

19.3 °C

Average feels-like low

9.0 °C

Average peak gust

24.3 km/h

Tropical nights (≥ 20 °C)

69 d/yr

Solar radiation

14.9 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.7 °C

since 1940

+0.2 °C per decade · r² = 0.40 · 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

41.8 °C

12 July 2002

Coldest day

-19.8 °C

10 January 1955

Wettest day

218 mm

10 July 1946

Windiest day

31.8 km/h

23 April 1958

Strongest gust

70.2 km/h

23 April 1958

Hottest feels-like

45.4 °C

12 July 1959

Coldest feels-like

-24.3 °C

10 January 1955

Snowiest day

17.2 cm

11 November 2009

Sunniest day

13.9 h

26 June 2025

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	40.1 °C15 July 2025	-11.4 °C27 January 2025	15.9 °C	1,028 mm	91	61
2024	37.2 °C12 June 2024	-8.7 °C22 January 2024	16.0 °C	1,121 mm	103	71
2023	38.0 °C10 July 2023	-8.9 °C22 December 2023	15.0 °C	1,049 mm	80	52
2022	40.4 °C24 June 2022	-6.5 °C18 December 2022	15.6 °C	799 mm	90	70
2021	37.3 °C13 July 2021	-9.5 °C9 January 2021	15.1 °C	1,117 mm	71	67
2020	37.5 °C5 June 2020	-8.3 °C31 December 2020	14.7 °C	834 mm	64	61
2019	37.2 °C28 July 2019	-6.6 °C1 January 2019	14.9 °C	831 mm	62	58
2018	38.2 °C20 July 2018	-14.6 °C29 January 2018	15.0 °C	672 mm	81	67
2017	40.0 °C23 July 2017	-5.7 °C17 December 2017	15.1 °C	731 mm	75	63
2016	38.9 °C14 August 2016	-12.1 °C25 January 2016	15.6 °C	633 mm	91	61
2015	37.9 °C31 July 2015	-6.6 °C17 December 2015	15.2 °C	721 mm	73	54
2014	38.2 °C30 July 2014	-6.9 °C11 February 2014	15.1 °C	793 mm	69	65
2013	37.1 °C6 August 2013	-7.7 °C27 December 2013	15.8 °C	633 mm	95	73
2012	37.0 °C22 June 2012	-12.2 °C25 January 2012	14.4 °C	741 mm	71	80
2011	38.6 °C30 June 2011	-7.6 °C6 January 2011	14.4 °C	964 mm	69	72
2010	38.5 °C6 July 2010	-8.0 °C18 February 2010	14.9 °C	808 mm	73	69
2009	37.6 °C25 June 2009	-9.9 °C24 January 2009	14.7 °C	952 mm	59	69
2008	36.8 °C7 August 2008	-16.2 °C31 January 2008	14.1 °C	630 mm	75	91
2007	36.5 °C29 May 2007	-7.2 °C7 January 2007	15.1 °C	979 mm	74	55
2006	40.1 °C18 June 2006	-11.5 °C7 January 2006	15.7 °C	733 mm	91	68
2005	39.9 °C23 June 2005	-11.6 °C2 January 2005	15.2 °C	866 mm	89	84
2004	38.8 °C25 June 2004	-8.8 °C31 December 2004	15.4 °C	800 mm	83	56
2003	38.4 °C25 July 2003	-6.8 °C8 January 2003	14.8 °C	1,082 mm	73	64
2002	41.8 °C12 July 2002	-8.7 °C26 December 2002	16.0 °C	646 mm	87	48
2001	38.3 °C16 July 2001	-6.7 °C14 December 2001	15.6 °C	673 mm	89	63
2000	39.0 °C22 July 2000	-5.4 °C30 January 2000	15.2 °C	902 mm	78	75
1999	37.7 °C25 July 1999	-9.1 °C22 December 1999	15.7 °C	889 mm	78	72
1998	38.9 °C21 June 1998	-8.2 °C19 January 1998	15.6 °C	1,114 mm	77	60
1997	38.4 °C22 July 1997	-9.3 °C24 January 1997	15.6 °C	536 mm	99	75
1996	37.4 °C1 July 1996	-6.6 °C10 January 1996	14.4 °C	923 mm	71	94
1995	39.9 °C12 July 1995	-6.4 °C5 February 1995	15.4 °C	629 mm	96	86
1994	39.5 °C4 August 1994	-8.7 °C21 January 1994	15.1 °C	924 mm	97	66
1993	37.0 °C15 June 1993	-8.6 °C16 January 1993	13.8 °C	983 mm	65	80
1992	38.2 °C9 June 1992	-10.3 °C3 January 1992	14.1 °C	1,039 mm	71	93
1991	38.5 °C20 July 1991	-15.6 °C28 December 1991	14.8 °C	769 mm	81	55
1990	38.2 °C15 July 1990	-13.1 °C1 February 1990	14.7 °C	989 mm	81	70
1989	38.7 °C21 July 1989	-11.6 °C14 January 1989	14.3 °C	1,079 mm	52	62
1988	39.8 °C30 June 1988	-14.6 °C17 February 1988	14.2 °C	957 mm	64	76
1987	37.0 °C7 July 1987	-6.9 °C2 December 1987	14.8 °C	1,016 mm	87	75
1986	39.0 °C11 August 1986	-5.8 °C5 January 1986	14.4 °C	768 mm	76	86
1985	40.0 °C5 August 1985	-7.4 °C8 January 1985	14.1 °C	806 mm	69	84
1984	38.4 °C4 June 1984	-10.2 °C22 January 1984	13.6 °C	1,172 mm	55	80
1983	36.5 °C27 July 1983	-10.7 °C20 January 1983	13.9 °C	1,254 mm	46	76
1982	40.0 °C17 June 1982	-6.7 °C12 December 1982	14.6 °C	939 mm	68	69
1981	38.9 °C14 June 1981	-11.6 °C18 December 1981	14.3 °C	1,201 mm	66	78
1980	38.0 °C23 July 1980	-13.9 °C5 February 1980	14.2 °C	927 mm	57	75
1979	38.3 °C10 August 1979	-13.3 °C18 November 1979	14.5 °C	825 mm	67	82
1978	38.6 °C5 August 1978	-9.8 °C12 February 1978	14.8 °C	722 mm	86	78
1977	39.9 °C30 June 1977	-14.2 °C30 January 1977	14.8 °C	729 mm	85	77
1976	39.0 °C24 July 1976	-10.6 °C29 December 1976	13.8 °C	838 mm	60	90
1975	38.4 °C16 July 1975	-13.7 °C12 December 1975	14.3 °C	1,115 mm	74	80
1974	38.0 °C16 July 1974	-10.4 °C17 January 1974	13.9 °C	1,111 mm	71	81
1973	38.2 °C11 August 1973	-9.0 °C3 January 1973	15.1 °C	795 mm	81	66
1972	39.2 °C11 August 1972	-9.3 °C9 February 1972	14.4 °C	854 mm	83	84
1971	40.2 °C4 July 1971	-10.8 °C30 January 1971	14.5 °C	845 mm	81	82
1970	38.7 °C22 July 1970	-8.0 °C15 January 1970	14.2 °C	918 mm	82	85
1969	39.6 °C1 August 1969	-14.5 °C5 February 1969	14.3 °C	807 mm	102	99
1968	38.8 °C17 August 1968	-11.0 °C24 January 1968	14.2 °C	1,180 mm	71	77
1967	39.1 °C31 July 1967	-11.5 °C16 January 1967	14.0 °C	931 mm	81	93
1966	38.2 °C21 June 1966	-10.6 °C28 January 1966	13.9 °C	1,037 mm	50	88
1965	33.6 °C30 July 1965	-9.4 °C19 December 1965	13.4 °C	1,291 mm	37	81
1964	38.3 °C8 August 1964	-8.1 °C26 February 1964	14.1 °C	1,324 mm	62	74
1963	37.4 °C28 June 1963	-11.3 °C12 January 1963	14.1 °C	1,368 mm	61	81
1962	39.6 °C11 July 1962	-9.6 °C23 January 1962	14.5 °C	1,001 mm	85	79
1961	39.2 °C13 June 1961	-8.4 °C1 February 1961	14.8 °C	1,394 mm	75	71
1960	40.6 °C23 June 1960	-8.3 °C30 December 1960	14.7 °C	761 mm	84	79
1959	40.7 °C11 July 1959	-8.2 °C13 January 1959	14.7 °C	808 mm	94	68
1958	36.8 °C28 June 1958	-14.1 °C16 January 1958	14.0 °C	1,491 mm	51	88
1957	38.0 °C28 August 1957	-12.5 °C10 February 1957	14.0 °C	1,234 mm	63	77
1956	33.8 °C28 July 1956	-16.5 °C26 January 1956	12.6 °C	1,450 mm	25	99
1955	34.0 °C20 June 1955	-19.8 °C10 January 1955	12.9 °C	1,343 mm	39	85
1954	31.6 °C8 July 1954	-19.4 °C25 January 1954	12.3 °C	1,964 mm	11	92
1953	35.3 °C13 August 1953	-10.4 °C10 December 1953	13.7 °C	1,512 mm	53	80
1952	35.2 °C29 July 1952	-13.9 °C19 February 1952	13.2 °C	1,637 mm	31	89
1951	33.8 °C5 August 1951	-16.7 °C2 March 1951	13.5 °C	1,270 mm	41	96
1950	34.2 °C6 July 1950	-13.2 °C17 February 1950	13.5 °C	1,119 mm	46	81
1949	33.6 °C24 July 1949	-14.5 °C9 January 1949	13.5 °C	1,325 mm	47	79
1948	35.4 °C26 July 1948	-17.3 °C26 January 1948	13.6 °C	1,198 mm	64	85
1947	36.7 °C14 July 1947	-17.2 °C20 December 1947	14.3 °C	781 mm	77	76
1946	33.7 °C9 August 1946	-10.1 °C3 January 1946	14.4 °C	3,950 mm	28	79
1945	38.5 °C21 July 1945	-16.2 °C15 January 1945	13.8 °C	566 mm	88	98
1944	37.0 °C26 July 1944	-15.0 °C16 December 1944	13.9 °C	1,066 mm	67	95
1943	35.3 °C15 June 1943	-10.8 °C6 February 1943	14.0 °C	1,174 mm	37	85
1942	39.3 °C18 July 1942	-6.3 °C12 February 1942	15.7 °C	602 mm	101	77
1941	40.7 °C30 June 1941	-11.6 °C14 February 1941	15.2 °C	593 mm	87	84
1940	39.3 °C30 June 1940	-15.9 °C26 January 1940	14.1 °C	989 mm	74	88

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

21.2 °C

+1.6 °C

Hot days (≥ 30 °C)

91 d/yr

+20

Frost days (< 0 °C)

61 d/yr

-15

Annual rainfall

1028 mm

+21 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	7.3 °C	+1.7 °C	38 mm	+23 mm
Feb	9.1 °C	+0.1 °C	10 mm	-11 mm
Mar	16.0 °C	+0.7 °C	40 mm	+0 mm
Apr	26.6 °C	+5.0 °C	3 mm	-61 mm
May	30.1 °C	+3.9 °C	34 mm	-60 mm
Jun	31.7 °C	+1.1 °C	61 mm	-43 mm
Jul	34.9 °C	+3.2 °C	87 mm	-107 mm
Aug	31.8 °C	+1.2 °C	117 mm	-50 mm
Sep	23.9 °C	-1.2 °C	383 mm	+225 mm
Oct	17.4 °C	-2.0 °C	217 mm	+128 mm
Nov	14.9 °C	+2.0 °C	18 mm	-27 mm
Dec	10.1 °C	+3.1 °C	20 mm	+5 mm

The year's extremes

Hottest day

40.1 °C

15 Jul 2025

Coldest day

-11.4 °C

27 Jan 2025

Wettest day

72.5 mm

11 Sep 2025

Windiest day

28.8 km/h

9 May 2025

Strongest gust

64.1 km/h

9 May 2025

Hottest feels-like

43.9 °C

17 Jul 2025

Coldest feels-like

-15.3 °C

27 Jan 2025

Snowiest day

8.4 cm

25 Jan 2025

Sunniest day

13.9 h

26 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 Xi'an?

Xi'an has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 14.4 °C and it receives 1,007 mm of precipitation per year.

What is the hottest day ever recorded in Xi'an?

The hottest day measured in Xi'an between 1940 and 2025 was 12 July 2002, reaching 41.8 °C.

What is the coldest day in Xi'an?

The coldest day measured in Xi'an between 1940 and 2025 was 10 January 1955, at -19.8 °C.

Does it snow in Xi'an?

Yes. Xi'an gets on average 25.6 cm of snow per year and has around 76 frost days.

Has the climate of Xi'an warmed?

Yes: Xi'an warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Xi'an?

The wettest day measured in Xi'an between 1940 and 2025 was 10 July 1946, with 218 mm of rain in 24 hours.

What was the windiest day in Xi'an?

The windiest day measured in Xi'an between 1940 and 2025 was 23 April 1958, with winds reaching 31.8 km/h.

What is the warmest month in Xi'an?

The warmest month in Xi'an is July (27.0 °C on average); the coldest is January (0.5 °C).

How much does it rain in Xi'an?

Xi'an receives on average 1,007 mm of precipitation per year, spread over about 103 rainy days.

Is it sunny in Xi'an?

Xi'an gets on average 8.6 hours of sunshine per day, roughly 3,139 hours per year over 1940-2025.

What is the biggest single-day snowfall in Xi'an?

The heaviest 24-hour snowfall measured in Xi'an between 1940 and 2025 was 11 November 2009, with 17.2 cm.

Are there tropical nights in Xi'an?

Yes: Xi'an has on average 69 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Xi'an?

In Xi'an, between 1940 and 2025, the highest apparent temperature reached 45.4 °C on 12 July 1959, and the lowest was -24.3 °C on 10 January 1955.

Compare Xi'an with another city

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