Thị Trấn Na Dương climate — normals and trends

Q: What is the climate of Thị Trấn Na Dương?

Thị Trấn Na Dương has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 21.1 °C and it receives 1,597 mm of precipitation per year.

Q: What is the hottest day ever recorded in Thị Trấn Na Dương?

The hottest day measured in Thị Trấn Na Dương between 1940 and 2025 was 30 July 1946, reaching 38.6 °C.

Q: What is the coldest day in Thị Trấn Na Dương?

The coldest day measured in Thị Trấn Na Dương between 1940 and 2025 was 12 January 1955, at -0.1 °C.

Q: Does it snow in Thị Trấn Na Dương?

Almost never: Thị Trấn Na Dương sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of Thị Trấn Na Dương warmed?

Yes: Thị Trấn Na Dương warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Thị Trấn Na Dương?

The wettest day measured in Thị Trấn Na Dương between 1940 and 2025 was 19 July 2014, with 211 mm of rain in 24 hours.

Q: What was the windiest day in Thị Trấn Na Dương?

The windiest day measured in Thị Trấn Na Dương between 1940 and 2025 was 23 July 1980, with winds reaching 47.3 km/h.

Q: What is the warmest month in Thị Trấn Na Dương?

The warmest month in Thị Trấn Na Dương is July (26.8 °C on average); the coldest is January (13.3 °C).

Q: How much does it rain in Thị Trấn Na Dương?

Thị Trấn Na Dương receives on average 1,597 mm of precipitation per year, spread over about 193 rainy days.

Q: Is it sunny in Thị Trấn Na Dương?

Thị Trấn Na Dương gets on average 7.3 hours of sunshine per day, roughly 2,665 hours per year over 1940-2025.

Thị Trấn Na Dương (Vietnam) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 21.1 °C and it receives 1,597 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 (26.8 °C on average) and the coldest is January (13.3 °C). Rainfall peaks in August.

Thị Trấn Na Dương averages 0 frost days, 73 hot days (≥ 30 °C) and 193 rainy days per year.

Thị Trấn Na Dương has warmed by +1.0 °C between 1940 and 2025, or +0.12 °C per decade. This trend is statistically significant.

The hottest day of the period reached 38.6 °C (on 30 July 1946) and the coldest -0.1 °C (on 12 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

Thị Trấn Na DươngLạng Sơn Province

coords: 21.70°, 106.96°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthJulyColdest monthJanuaryWettest monthAugustDriest monthDecember

Mean daily temperature

21.1°C

Average daily high

24.7°C

Average daily low

18.3°C

Annual rainfall

1,597mm

Sunshine / day

7.3h

Mean relative humidity

83%

Average peak wind

13.8km/h

Seasonal range

13.5°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

73 d/yr

Rainy days (≥ 1 mm)

193 d/yr

Annual snowfall

0.0 cm

Average feels-like high

27.2 °C

Average feels-like low

19.9 °C

Average peak gust

35.5 km/h

Tropical nights (≥ 20 °C)

180 d/yr

Solar radiation

13.5 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.0 °C

since 1940

+0.1 °C per decade · r² = 0.32 · 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

38.6 °C

30 July 1946

Coldest day

-0.1 °C

12 January 1955

Wettest day

211 mm

19 July 2014

Windiest day

47.3 km/h

23 July 1980

Strongest gust

139.7 km/h

7 September 2024

Hottest feels-like

44.5 °C

16 May 2013

Coldest feels-like

-5.2 °C

24 January 2016

Snowiest day

1.1 cm

24 January 2016

Sunniest day

13.1 h

22 June 1946

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	34.6 °C30 July 2025	5.3 °C13 January 2025	21.7 °C	1,713 mm	96	0
2024	35.5 °C30 April 2024	4.0 °C23 January 2024	22.2 °C	1,763 mm	104	0
2023	36.0 °C22 May 2023	4.9 °C31 January 2023	22.3 °C	1,404 mm	109	0
2022	33.9 °C4 July 2022	4.3 °C20 February 2022	21.4 °C	1,675 mm	98	0
2021	35.7 °C20 June 2021	4.2 °C8 January 2021	22.0 °C	1,436 mm	117	0
2020	35.2 °C21 May 2020	5.9 °C17 December 2020	21.9 °C	1,385 mm	106	0
2019	35.1 °C19 May 2019	5.2 °C1 January 2019	22.2 °C	1,621 mm	104	0
2018	34.9 °C5 July 2018	3.7 °C30 December 2018	21.6 °C	1,703 mm	87	0
2017	36.9 °C3 June 2017	7.2 °C20 December 2017	21.7 °C	1,757 mm	83	0
2016	34.8 °C3 June 2016	0.8 °C24 January 2016	21.7 °C	1,574 mm	100	0
2015	35.9 °C30 May 2015	6.2 °C14 January 2015	22.1 °C	1,588 mm	104	0
2014	34.3 °C23 May 2014	3.5 °C20 February 2014	21.3 °C	1,726 mm	98	0
2013	35.6 °C16 May 2013	2.9 °C20 December 2013	21.1 °C	1,635 mm	76	0
2012	35.7 °C4 May 2012	4.1 °C5 January 2012	21.1 °C	1,788 mm	91	0
2011	34.2 °C31 August 2011	3.6 °C11 January 2011	20.1 °C	1,350 mm	87	0
2010	34.6 °C20 May 2010	5.1 °C17 December 2010	21.7 °C	1,636 mm	94	0
2009	34.3 °C21 June 2009	4.0 °C11 January 2009	21.8 °C	1,239 mm	104	0
2008	33.6 °C30 July 2008	2.5 °C1 February 2008	20.6 °C	1,661 mm	74	0
2007	34.6 °C24 May 2007	5.6 °C29 January 2007	21.5 °C	1,331 mm	89	0
2006	33.6 °C24 July 2006	6.2 °C23 December 2006	21.6 °C	1,535 mm	91	0
2005	33.5 °C12 May 2005	4.6 °C13 January 2005	21.1 °C	1,242 mm	97	0
2004	34.9 °C1 July 2004	3.5 °C9 February 2004	21.1 °C	1,116 mm	79	0
2003	35.7 °C7 May 2003	3.6 °C7 January 2003	21.9 °C	1,306 mm	98	0
2002	34.0 °C21 May 2002	2.8 °C27 December 2002	21.4 °C	1,704 mm	68	0
2001	34.6 °C21 April 2001	3.0 °C25 December 2001	21.1 °C	2,012 mm	68	0
2000	33.6 °C23 August 2000	3.9 °C2 February 2000	21.2 °C	1,339 mm	78	0
1999	34.1 °C6 June 1999	2.5 °C23 December 1999	21.4 °C	1,428 mm	89	0
1998	34.5 °C22 May 1998	5.0 °C20 January 1998	22.1 °C	1,217 mm	87	0
1997	34.7 °C9 June 1997	6.9 °C24 January 1997	21.3 °C	1,957 mm	58	0
1996	34.7 °C2 August 1996	2.4 °C21 February 1996	20.7 °C	1,691 mm	70	0
1995	33.8 °C23 June 1995	4.1 °C30 December 1995	20.8 °C	1,620 mm	67	0
1994	35.0 °C2 May 1994	5.5 °C20 January 1994	21.4 °C	1,864 mm	63	0
1993	33.6 °C4 June 1993	3.7 °C16 January 1993	21.1 °C	1,416 mm	89	0
1992	34.3 °C8 May 1992	5.7 °C17 January 1992	20.9 °C	1,477 mm	83	0
1991	34.1 °C12 July 1991	2.0 °C28 December 1991	21.6 °C	1,106 mm	89	0
1990	35.4 °C22 April 1990	4.7 °C1 February 1990	21.4 °C	1,588 mm	77	0
1989	34.3 °C18 June 1989	3.8 °C13 January 1989	20.8 °C	1,550 mm	75	0
1988	35.7 °C24 May 1988	3.9 °C19 February 1988	20.6 °C	1,557 mm	72	0
1987	34.5 °C25 June 1987	4.1 °C8 December 1987	21.9 °C	1,649 mm	86	0
1986	35.0 °C2 July 1986	2.7 °C1 March 1986	21.0 °C	1,943 mm	76	0
1985	33.6 °C23 June 1985	4.9 °C24 December 1985	20.5 °C	1,828 mm	76	0
1984	34.4 °C19 March 1984	2.9 °C9 January 1984	20.4 °C	1,533 mm	78	0
1983	35.1 °C13 July 1983	2.9 °C29 December 1983	20.7 °C	1,568 mm	106	0
1982	33.5 °C31 May 1982	1.2 °C27 December 1982	21.1 °C	1,809 mm	75	0
1981	34.2 °C25 August 1981	4.5 °C8 December 1981	21.2 °C	2,121 mm	79	0
1980	34.4 °C24 April 1980	3.5 °C8 February 1980	21.2 °C	1,782 mm	72	0
1979	34.5 °C29 July 1979	5.4 °C31 January 1979	21.2 °C	1,828 mm	67	0
1978	34.1 °C29 July 1978	4.8 °C18 January 1978	20.8 °C	2,352 mm	64	0
1977	33.9 °C30 May 1977	1.5 °C31 January 1977	20.8 °C	1,434 mm	78	0
1976	33.6 °C17 June 1976	3.1 °C29 December 1976	20.3 °C	1,512 mm	65	0
1975	33.2 °C30 July 1975	1.4 °C14 December 1975	21.0 °C	1,804 mm	82	0
1974	34.1 °C6 May 1974	1.7 °C1 January 1974	20.8 °C	1,565 mm	72	0
1973	35.9 °C8 April 1973	1.6 °C27 December 1973	21.6 °C	2,496 mm	82	0
1972	34.8 °C10 July 1972	3.3 °C8 February 1972	21.1 °C	2,057 mm	85	0
1971	33.8 °C22 July 1971	2.2 °C6 January 1971	20.6 °C	1,602 mm	61	0
1970	34.9 °C12 May 1970	4.1 °C31 January 1970	20.7 °C	1,590 mm	75	0
1969	35.7 °C13 May 1969	3.8 °C31 January 1969	21.1 °C	1,291 mm	95	0
1968	34.2 °C28 July 1968	2.7 °C14 February 1968	21.1 °C	1,630 mm	69	0
1967	34.3 °C23 May 1967	0.9 °C17 January 1967	20.5 °C	1,333 mm	84	0
1966	33.4 °C12 May 1966	3.1 °C27 December 1966	20.8 °C	1,800 mm	30	0
1965	33.3 °C21 July 1965	1.2 °C18 December 1965	20.6 °C	1,873 mm	33	0
1964	33.9 °C8 August 1964	3.0 °C25 February 1964	20.9 °C	1,431 mm	70	0
1963	33.4 °C18 July 1963	2.1 °C15 January 1963	20.9 °C	1,561 mm	68	0
1962	33.7 °C30 July 1962	3.2 °C28 January 1962	20.7 °C	1,560 mm	77	0
1961	33.9 °C26 August 1961	1.7 °C18 January 1961	21.3 °C	1,604 mm	78	0
1960	34.1 °C27 April 1960	2.6 °C24 January 1960	21.2 °C	1,680 mm	74	0
1959	33.8 °C30 August 1959	5.0 °C25 December 1959	20.8 °C	1,492 mm	52	0
1958	36.4 °C10 May 1958	1.7 °C2 February 1958	21.2 °C	1,531 mm	86	0
1957	34.8 °C15 August 1957	2.1 °C14 February 1957	21.1 °C	1,472 mm	84	0
1956	34.6 °C19 April 1956	2.6 °C9 January 1956	20.8 °C	1,218 mm	48	0
1955	33.5 °C15 April 1955	-0.1 °C12 January 1955	20.9 °C	1,141 mm	30	1
1954	33.6 °C29 July 1954	4.0 °C26 January 1954	21.2 °C	1,203 mm	51	0
1953	32.8 °C15 July 1953	4.3 °C13 December 1953	21.1 °C	1,677 mm	58	0
1952	32.6 °C11 July 1952	1.8 °C19 February 1952	21.5 °C	1,867 mm	52	0
1951	32.6 °C10 April 1951	1.5 °C13 January 1951	20.8 °C	1,920 mm	31	0
1950	33.4 °C21 April 1950	4.2 °C14 February 1950	21.0 °C	1,826 mm	30	0
1949	36.2 °C14 June 1949	3.4 °C10 January 1949	21.5 °C	1,158 mm	61	0
1948	32.2 °C16 July 1948	1.9 °C26 January 1948	20.9 °C	1,641 mm	51	0
1947	32.5 °C18 July 1947	2.8 °C20 December 1947	20.5 °C	1,504 mm	31	0
1946	38.6 °C30 July 1946	4.3 °C8 January 1946	22.0 °C	760 mm	117	0
1945	31.4 °C14 July 1945	2.1 °C4 February 1945	19.5 °C	1,669 mm	16	0
1944	35.2 °C8 April 1944	1.9 °C22 December 1944	20.5 °C	1,644 mm	17	0
1943	33.9 °C29 May 1943	3.0 °C13 January 1943	20.3 °C	1,264 mm	34	0
1942	31.7 °C6 August 1942	4.1 °C13 February 1942	20.4 °C	1,951 mm	14	0
1941	32.3 °C26 April 1941	5.6 °C1 February 1941	20.4 °C	1,867 mm	13	0
1940	31.5 °C15 May 1940	3.0 °C25 January 1940	20.2 °C	1,555 mm	23	0

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

25.3 °C

+0.6 °C

Hot days (≥ 30 °C)

96 d/yr

+23

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1713 mm

+116 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	19.2 °C	+2.3 °C	17 mm	-29 mm
Feb	16.3 °C	-1.7 °C	39 mm	-9 mm
Mar	21.6 °C	0.0 °C	59 mm	-10 mm
Apr	26.7 °C	+1.1 °C	91 mm	-12 mm
May	28.4 °C	-0.1 °C	191 mm	-16 mm
Jun	30.3 °C	+0.5 °C	236 mm	-14 mm
Jul	31.2 °C	+1.0 °C	267 mm	+35 mm
Aug	29.9 °C	+0.1 °C	286 mm	+13 mm
Sep	29.9 °C	+1.2 °C	253 mm	+66 mm
Oct	26.8 °C	+0.8 °C	168 mm	+68 mm
Nov	21.4 °C	-1.1 °C	53 mm	+5 mm
Dec	20.7 °C	+2.0 °C	54 mm	+20 mm

The year's extremes

Hottest day

34.6 °C

30 Jul 2025

Coldest day

5.3 °C

13 Jan 2025

Wettest day

86.1 mm

6 Oct 2025

Windiest day

34.5 km/h

21 Jul 2025

Strongest gust

81.4 km/h

22 Jul 2025

Hottest feels-like

43.7 °C

30 Jul 2025

Coldest feels-like

2.7 °C

13 Jan 2025

Sunniest day

12.7 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 Thị Trấn Na Dương?

Thị Trấn Na Dương has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 21.1 °C and it receives 1,597 mm of precipitation per year.

What is the hottest day ever recorded in Thị Trấn Na Dương?

The hottest day measured in Thị Trấn Na Dương between 1940 and 2025 was 30 July 1946, reaching 38.6 °C.

What is the coldest day in Thị Trấn Na Dương?

The coldest day measured in Thị Trấn Na Dương between 1940 and 2025 was 12 January 1955, at -0.1 °C.

Does it snow in Thị Trấn Na Dương?

Almost never: Thị Trấn Na Dương sees virtually no snow, with about 0 frost days per year.

Has the climate of Thị Trấn Na Dương warmed?

Yes: Thị Trấn Na Dương warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Thị Trấn Na Dương?

The wettest day measured in Thị Trấn Na Dương between 1940 and 2025 was 19 July 2014, with 211 mm of rain in 24 hours.

What was the windiest day in Thị Trấn Na Dương?

The windiest day measured in Thị Trấn Na Dương between 1940 and 2025 was 23 July 1980, with winds reaching 47.3 km/h.

What is the warmest month in Thị Trấn Na Dương?

The warmest month in Thị Trấn Na Dương is July (26.8 °C on average); the coldest is January (13.3 °C).

How much does it rain in Thị Trấn Na Dương?

Thị Trấn Na Dương receives on average 1,597 mm of precipitation per year, spread over about 193 rainy days.

Is it sunny in Thị Trấn Na Dương?

Thị Trấn Na Dương gets on average 7.3 hours of sunshine per day, roughly 2,665 hours per year over 1940-2025.

What is the biggest single-day snowfall in Thị Trấn Na Dương?

The heaviest 24-hour snowfall measured in Thị Trấn Na Dương between 1940 and 2025 was 24 January 2016, with 1.1 cm.

Are there tropical nights in Thị Trấn Na Dương?

Yes: Thị Trấn Na Dương has on average 180 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Thị Trấn Na Dương?

In Thị Trấn Na Dương, between 1940 and 2025, the highest apparent temperature reached 44.5 °C on 16 May 2013, and the lowest was -5.2 °C on 24 January 2016.

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