Phổ Yên climate — normals and trends

Q: What is the climate of Phổ Yên?

Phổ Yên has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 23.4 °C and it receives 1,963 mm of precipitation per year.

Q: What is the hottest day ever recorded in Phổ Yên?

The hottest day measured in Phổ Yên between 1940 and 2025 was 30 July 1946, reaching 40.9 °C.

Q: What is the coldest day in Phổ Yên?

The coldest day measured in Phổ Yên between 1940 and 2025 was 31 December 1975, at 2.8 °C.

Q: Does it snow in Phổ Yên?

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

Q: Has the climate of Phổ Yên warmed?

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

Q: What is the wettest day in Phổ Yên?

The wettest day measured in Phổ Yên between 1940 and 2025 was 18 August 1973, with 226 mm of rain in 24 hours.

Q: What was the windiest day in Phổ Yên?

The windiest day measured in Phổ Yên between 1940 and 2025 was 23 July 1980, with winds reaching 46.9 km/h.

Q: What is the warmest month in Phổ Yên?

The warmest month in Phổ Yên is July (28.6 °C on average); the coldest is January (16.1 °C).

Q: How much does it rain in Phổ Yên?

Phổ Yên receives on average 1,963 mm of precipitation per year, spread over about 195 rainy days.

Q: Is it sunny in Phổ Yên?

Phổ Yên gets on average 6.6 hours of sunshine per day, roughly 2,409 hours per year over 1940-2025.

Phổ Yên (Vietnam) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 23.4 °C and it receives 1,963 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 (28.6 °C on average) and the coldest is January (16.1 °C). Rainfall peaks in August.

Phổ Yên averages 0 frost days, 141 hot days (≥ 30 °C) and 195 rainy days per year.

Phổ Yên has warmed by +1.3 °C between 1940 and 2025, or +0.15 °C per decade. This trend is statistically significant.

The hottest day of the period reached 40.9 °C (on 30 July 1946) and the coldest 2.8 °C (on 31 December 1975).

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

Phổ YênThai Nguyen

coords: 21.42°, 105.89°
period: 1940–2025 · 86 yrs

CwaHumid subtropical, dry winterWarmest monthJulyColdest monthJanuaryWettest monthAugustDriest monthDecember

Mean daily temperature

23.4°C

Average daily high

27.1°C

Average daily low

20.5°C

Annual rainfall

1,963mm

Sunshine / day

6.6h

Mean relative humidity

80%

Average peak wind

11.5km/h

Seasonal range

12.5°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

141 d/yr

Rainy days (≥ 1 mm)

195 d/yr

Annual snowfall

0.0 cm

Average feels-like high

30.8 °C

Average feels-like low

23.0 °C

Average peak gust

26.4 km/h

Tropical nights (≥ 20 °C)

218 d/yr

Solar radiation

13.2 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.3 °C

since 1940

+0.2 °C per decade · r² = 0.41 · 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

40.9 °C

30 July 1946

Coldest day

2.8 °C

31 December 1975

Wettest day

226 mm

18 August 1973

Windiest day

46.9 km/h

23 July 1980

Strongest gust

117.0 km/h

23 July 1980

Hottest feels-like

47.6 °C

30 May 2015

Coldest feels-like

-0.6 °C

12 January 1955

Sunniest day

13.1 h

21 June 1961

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	38.3 °C1 June 2025	7.3 °C13 January 2025	24.1 °C	2,247 mm	151
2024	38.1 °C26 July 2024	8.3 °C24 January 2024	24.7 °C	2,524 mm	186
2023	37.5 °C17 May 2023	7.5 °C30 January 2023	24.7 °C	1,755 mm	166
2022	36.6 °C4 June 2022	8.1 °C21 February 2022	23.8 °C	2,010 mm	148
2021	38.6 °C3 June 2021	7.5 °C2 January 2021	24.3 °C	1,640 mm	164
2020	38.0 °C21 May 2020	9.2 °C31 January 2020	24.2 °C	1,956 mm	146
2019	37.8 °C19 May 2019	8.2 °C10 December 2019	24.5 °C	1,867 mm	157
2018	38.1 °C6 July 2018	7.1 °C6 February 2018	24.0 °C	2,079 mm	152
2017	39.7 °C3 June 2017	9.2 °C20 December 2017	24.0 °C	2,186 mm	136
2016	37.2 °C2 June 2016	5.3 °C24 January 2016	24.2 °C	1,772 mm	177
2015	37.8 °C30 May 2015	8.6 °C15 January 2015	24.5 °C	2,030 mm	178
2014	37.5 °C22 May 2014	5.6 °C23 January 2014	23.8 °C	1,992 mm	169
2013	38.3 °C16 May 2013	5.9 °C20 December 2013	23.5 °C	1,971 mm	153
2012	37.8 °C4 May 2012	8.1 °C5 January 2012	23.5 °C	1,763 mm	162
2011	36.8 °C31 August 2011	7.5 °C11 January 2011	22.6 °C	1,643 mm	136
2010	37.2 °C19 June 2010	8.4 °C27 December 2010	24.0 °C	2,002 mm	158
2009	37.2 °C8 June 2009	6.6 °C11 January 2009	24.1 °C	1,421 mm	167
2008	36.6 °C23 September 2008	6.2 °C1 February 2008	22.9 °C	2,063 mm	148
2007	37.1 °C9 June 2007	7.0 °C30 November 2007	23.7 °C	1,783 mm	146
2006	36.9 °C12 April 2006	7.9 °C23 December 2006	24.0 °C	1,691 mm	178
2005	36.7 °C17 May 2005	7.6 °C22 December 2005	23.5 °C	1,512 mm	157
2004	37.4 °C3 July 2004	6.2 °C9 February 2004	23.4 °C	1,473 mm	157
2003	38.2 °C6 May 2003	6.4 °C7 January 2003	24.3 °C	1,605 mm	173
2002	36.6 °C10 July 2002	8.0 °C26 December 2002	23.8 °C	1,975 mm	166
2001	36.5 °C6 July 2001	5.2 °C24 December 2001	23.6 °C	1,985 mm	140
2000	36.1 °C12 August 2000	7.0 °C2 February 2000	23.5 °C	2,066 mm	143
1999	35.7 °C6 June 1999	3.7 °C24 December 1999	23.6 °C	1,773 mm	150
1998	37.3 °C15 June 1998	9.0 °C20 January 1998	24.2 °C	1,688 mm	160
1997	37.4 °C8 June 1997	8.4 °C12 January 1997	23.5 °C	2,238 mm	139
1996	37.8 °C6 May 1996	6.6 °C21 February 1996	23.1 °C	2,031 mm	142
1995	36.9 °C21 June 1995	6.1 °C31 December 1995	23.3 °C	2,074 mm	151
1994	38.3 °C3 May 1994	9.3 °C23 January 1994	23.5 °C	2,366 mm	127
1993	36.9 °C4 June 1993	5.3 °C31 January 1993	23.4 °C	1,895 mm	147
1992	36.2 °C21 April 1992	8.3 °C17 January 1992	23.1 °C	1,752 mm	134
1991	36.4 °C24 May 1991	8.3 °C28 December 1991	23.8 °C	1,533 mm	149
1990	37.8 °C22 April 1990	8.9 °C6 December 1990	23.6 °C	2,236 mm	139
1989	36.3 °C21 May 1989	8.0 °C29 January 1989	23.1 °C	1,921 mm	135
1988	37.7 °C21 May 1988	7.5 °C20 February 1988	23.0 °C	1,955 mm	139
1987	37.2 °C21 May 1987	6.4 °C8 December 1987	24.2 °C	1,847 mm	167
1986	37.4 °C2 July 1986	5.6 °C3 March 1986	23.3 °C	2,525 mm	136
1985	37.4 °C27 May 1985	7.1 °C25 December 1985	22.9 °C	2,003 mm	153
1984	36.3 °C5 June 1984	5.9 °C10 January 1984	22.8 °C	1,857 mm	129
1983	37.7 °C18 June 1983	5.2 °C23 January 1983	23.0 °C	1,844 mm	152
1982	36.7 °C21 June 1982	3.5 °C27 December 1982	23.3 °C	2,155 mm	136
1981	36.9 °C25 August 1981	7.2 °C14 January 1981	23.5 °C	2,438 mm	161
1980	36.9 °C31 May 1980	7.6 °C8 February 1980	23.5 °C	2,265 mm	148
1979	36.3 °C15 July 1979	9.4 °C26 December 1979	23.5 °C	2,141 mm	164
1978	36.2 °C21 August 1978	7.0 °C21 January 1978	23.0 °C	2,629 mm	128
1977	37.0 °C9 June 1977	5.3 °C31 January 1977	23.0 °C	1,652 mm	136
1976	35.8 °C16 June 1976	7.0 °C13 January 1976	22.6 °C	1,849 mm	135
1975	36.0 °C30 July 1975	2.8 °C31 December 1975	23.1 °C	2,487 mm	143
1974	38.0 °C2 June 1974	2.9 °C2 January 1974	23.2 °C	2,013 mm	162
1973	39.5 °C8 April 1973	4.8 °C27 December 1973	24.0 °C	2,658 mm	154
1972	38.7 °C10 May 1972	6.5 °C16 January 1972	23.4 °C	2,311 mm	161
1971	36.2 °C18 May 1971	4.5 °C10 January 1971	22.8 °C	1,928 mm	131
1970	36.6 °C9 May 1970	7.2 °C31 January 1970	23.2 °C	1,808 mm	140
1969	37.7 °C13 May 1969	7.0 °C5 December 1969	23.4 °C	1,495 mm	170
1968	37.6 °C24 May 1968	3.8 °C14 February 1968	23.4 °C	1,963 mm	135
1967	38.6 °C6 July 1967	4.4 °C18 January 1967	23.0 °C	1,411 mm	138
1966	35.8 °C12 May 1966	6.0 °C1 January 1966	22.9 °C	2,200 mm	111
1965	35.4 °C14 May 1965	6.2 °C31 December 1965	22.7 °C	1,947 mm	106
1964	36.4 °C18 June 1964	4.9 °C19 December 1964	23.0 °C	2,326 mm	129
1963	35.6 °C6 September 1963	3.8 °C16 January 1963	23.0 °C	1,996 mm	139
1962	36.8 °C28 May 1962	5.2 °C28 January 1962	23.0 °C	1,662 mm	145
1961	36.9 °C1 June 1961	3.5 °C19 January 1961	23.4 °C	2,096 mm	139
1960	37.3 °C5 May 1960	5.1 °C2 January 1960	23.4 °C	2,202 mm	139
1959	36.9 °C12 June 1959	8.0 °C14 January 1959	23.2 °C	1,772 mm	149
1958	39.3 °C2 June 1958	5.1 °C2 February 1958	23.4 °C	1,712 mm	146
1957	37.6 °C16 August 1957	4.8 °C14 February 1957	23.3 °C	1,832 mm	146
1956	36.1 °C19 April 1956	7.1 °C9 January 1956	22.9 °C	1,918 mm	127
1955	36.9 °C16 April 1955	3.1 °C12 January 1955	23.0 °C	1,746 mm	118
1954	37.8 °C23 July 1954	6.1 °C17 December 1954	23.5 °C	1,660 mm	124
1953	36.7 °C26 June 1953	7.1 °C13 December 1953	23.3 °C	2,068 mm	128
1952	36.4 °C11 July 1952	6.3 °C19 February 1952	23.6 °C	2,537 mm	122
1951	34.4 °C18 July 1951	6.9 °C14 January 1951	22.9 °C	2,298 mm	107
1950	36.2 °C21 April 1950	8.6 °C14 February 1950	23.2 °C	2,353 mm	120
1949	39.4 °C14 June 1949	4.8 °C10 January 1949	23.6 °C	1,558 mm	123
1948	34.7 °C1 July 1948	5.6 °C4 January 1948	23.0 °C	1,873 mm	107
1947	35.6 °C14 June 1947	6.3 °C21 December 1947	22.7 °C	1,816 mm	97
1946	40.9 °C30 July 1946	6.7 °C7 January 1946	24.6 °C	947 mm	162
1945	34.3 °C21 May 1945	5.3 °C18 January 1945	21.8 °C	2,012 mm	87
1944	37.2 °C8 April 1944	3.2 °C21 December 1944	22.7 °C	2,209 mm	99
1943	34.7 °C29 May 1943	5.3 °C13 January 1943	22.3 °C	1,858 mm	86
1942	34.3 °C24 May 1942	7.4 °C7 December 1942	22.5 °C	2,490 mm	74
1941	34.0 °C26 April 1941	8.0 °C4 February 1941	22.8 °C	1,912 mm	93
1940	34.3 °C15 May 1940	6.2 °C25 January 1940	22.4 °C	2,064 mm	94

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

27.8 °C

+0.7 °C

Hot days (≥ 30 °C)

151 d/yr

+10

Frost days (< 0 °C)

0 d/yr

Annual rainfall

2247 mm

+284 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	22.5 °C	+2.9 °C	15 mm	-34 mm
Feb	18.9 °C	-1.7 °C	49 mm	-5 mm
Mar	24.2 °C	+0.2 °C	50 mm	-28 mm
Apr	29.2 °C	+1.2 °C	81 mm	-34 mm
May	30.7 °C	-0.3 °C	320 mm	+72 mm
Jun	32.6 °C	+0.4 °C	414 mm	+115 mm
Jul	33.1 °C	+0.7 °C	331 mm	+29 mm
Aug	32.0 °C	+0.2 °C	339 mm	-21 mm
Sep	32.1 °C	+1.2 °C	319 mm	+79 mm
Oct	29.3 °C	+0.8 °C	226 mm	+96 mm
Nov	24.5 °C	-0.7 °C	62 mm	+7 mm
Dec	23.5 °C	+2.0 °C	40 mm	+8 mm

The year's extremes

Hottest day

38.3 °C

1 Jun 2025

Coldest day

7.3 °C

13 Jan 2025

Wettest day

113.0 mm

6 Oct 2025

Windiest day

34.7 km/h

22 Jul 2025

Strongest gust

72.7 km/h

22 Jul 2025

Hottest feels-like

47.0 °C

2 Jun 2025

Coldest feels-like

5.1 °C

13 Jan 2025

Sunniest day

12.6 h

1 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 Phổ Yên?

Phổ Yên has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 23.4 °C and it receives 1,963 mm of precipitation per year.

What is the hottest day ever recorded in Phổ Yên?

The hottest day measured in Phổ Yên between 1940 and 2025 was 30 July 1946, reaching 40.9 °C.

What is the coldest day in Phổ Yên?

The coldest day measured in Phổ Yên between 1940 and 2025 was 31 December 1975, at 2.8 °C.

Does it snow in Phổ Yên?

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

Has the climate of Phổ Yên warmed?

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

What is the wettest day in Phổ Yên?

The wettest day measured in Phổ Yên between 1940 and 2025 was 18 August 1973, with 226 mm of rain in 24 hours.

What was the windiest day in Phổ Yên?

The windiest day measured in Phổ Yên between 1940 and 2025 was 23 July 1980, with winds reaching 46.9 km/h.

What is the warmest month in Phổ Yên?

The warmest month in Phổ Yên is July (28.6 °C on average); the coldest is January (16.1 °C).

How much does it rain in Phổ Yên?

Phổ Yên receives on average 1,963 mm of precipitation per year, spread over about 195 rainy days.

Is it sunny in Phổ Yên?

Phổ Yên gets on average 6.6 hours of sunshine per day, roughly 2,409 hours per year over 1940-2025.

Are there tropical nights in Phổ Yên?

Yes: Phổ Yên has on average 218 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Phổ Yên?

In Phổ Yên, between 1940 and 2025, the highest apparent temperature reached 47.6 °C on 30 May 2015, and the lowest was -0.6 °C on 12 January 1955.

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