Biswanath Chariali climate — normals and trends

Q: What is the climate of Biswanath Chariali?

Biswanath Chariali has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 23.5 °C and it receives 2,444 mm of precipitation per year.

Q: What is the hottest day ever recorded in Biswanath Chariali?

The hottest day measured in Biswanath Chariali between 1940 and 2025 was 25 May 2024, reaching 40.0 °C.

Q: What is the coldest day in Biswanath Chariali?

The coldest day measured in Biswanath Chariali between 1940 and 2025 was 28 December 1961, at 5.6 °C.

Q: Does it snow in Biswanath Chariali?

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

Q: Has the climate of Biswanath Chariali warmed?

Yes: Biswanath Chariali warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Biswanath Chariali?

The wettest day measured in Biswanath Chariali between 1940 and 2025 was 28 August 1942, with 261 mm of rain in 24 hours.

Q: What was the windiest day in Biswanath Chariali?

The windiest day measured in Biswanath Chariali between 1940 and 2025 was 19 March 1985, with winds reaching 36.3 km/h.

Q: What is the warmest month in Biswanath Chariali?

The warmest month in Biswanath Chariali is August (27.9 °C on average); the coldest is January (16.4 °C).

Q: How much does it rain in Biswanath Chariali?

Biswanath Chariali receives on average 2,444 mm of precipitation per year, spread over about 195 rainy days.

Q: Is it sunny in Biswanath Chariali?

Biswanath Chariali gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.

Biswanath Chariali (India) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 23.5 °C and it receives 2,444 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 (27.9 °C on average) and the coldest is January (16.4 °C). Rainfall peaks in June.

Biswanath Chariali averages 0 frost days, 116 hot days (≥ 30 °C) and 195 rainy days per year.

Biswanath Chariali has warmed by +1.4 °C between 1940 and 2025, or +0.16 °C per decade. This trend is statistically significant.

The hottest day of the period reached 40.0 °C (on 25 May 2024) and the coldest 5.6 °C (on 28 December 1961).

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

Biswanath CharialiAssam

coords: 26.73°, 93.15°
period: 1940–2025 · 86 yrs

CwaHumid subtropical, dry winterWarmest monthAugustColdest monthJanuaryWettest monthJuneDriest monthDecember

Mean daily temperature

23.5°C

Average daily high

27.9°C

Average daily low

19.9°C

Annual rainfall

2,444mm

Sunshine / day

9.4h

Mean relative humidity

78%

Average peak wind

8.4km/h

Seasonal range

11.5°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

116 d/yr

Rainy days (≥ 1 mm)

195 d/yr

Annual snowfall

0.0 cm

Average feels-like high

31.4 °C

Average feels-like low

22.6 °C

Average peak gust

24.2 km/h

Tropical nights (≥ 20 °C)

199 d/yr

Solar radiation

15.1 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.4 °C

since 1940

+0.2 °C per decade · r² = 0.52 · 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

40.0 °C

25 May 2024

Coldest day

5.6 °C

28 December 1961

Wettest day

261 mm

28 August 1942

Windiest day

36.3 km/h

19 March 1985

Strongest gust

83.2 km/h

13 March 1988

Hottest feels-like

46.8 °C

5 September 2023

Coldest feels-like

3.4 °C

28 December 1961

Sunniest day

13.4 h

26 June 1961

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	37.6 °C13 July 2025	11.5 °C12 January 2025	24.8 °C	1,821 mm	184
2024	40.0 °C25 May 2024	10.8 °C24 December 2024	24.7 °C	2,268 mm	168
2023	37.7 °C15 April 2023	10.3 °C4 January 2023	24.9 °C	1,972 mm	196
2022	36.8 °C15 July 2022	9.8 °C7 February 2022	24.2 °C	2,188 mm	164
2021	37.3 °C26 April 2021	9.8 °C2 January 2021	24.7 °C	1,690 mm	186
2020	36.8 °C6 August 2020	9.7 °C26 January 2020	24.3 °C	2,246 mm	157
2019	37.6 °C25 April 2019	9.0 °C6 January 2019	24.3 °C	2,226 mm	158
2018	39.0 °C10 June 2018	9.7 °C9 January 2018	24.4 °C	1,812 mm	163
2017	36.9 °C18 July 2017	9.2 °C14 January 2017	24.5 °C	2,669 mm	149
2016	36.3 °C3 August 2016	9.2 °C18 January 2016	24.4 °C	2,366 mm	161
2015	36.8 °C26 July 2015	8.7 °C25 December 2015	24.2 °C	2,458 mm	141
2014	39.5 °C24 April 2014	9.3 °C10 January 2014	24.4 °C	2,538 mm	182
2013	37.0 °C13 June 2013	8.0 °C13 January 2013	24.0 °C	1,955 mm	165
2012	37.4 °C2 April 2012	8.5 °C16 January 2012	23.5 °C	2,563 mm	138
2011	35.4 °C29 August 2011	8.0 °C18 January 2011	23.9 °C	2,219 mm	157
2010	36.7 °C20 March 2010	9.4 °C4 January 2010	23.7 °C	3,403 mm	121
2009	37.2 °C23 May 2009	9.5 °C30 December 2009	24.5 °C	2,027 mm	180
2008	35.6 °C8 July 2008	8.8 °C2 February 2008	23.8 °C	2,170 mm	143
2007	36.0 °C29 March 2007	9.1 °C19 January 2007	23.8 °C	2,761 mm	135
2006	37.6 °C16 August 2006	10.4 °C27 January 2006	24.3 °C	1,408 mm	164
2005	35.5 °C13 September 2005	9.6 °C13 January 2005	23.5 °C	1,920 mm	105
2004	34.3 °C12 August 2004	8.5 °C30 December 2004	23.2 °C	3,171 mm	104
2003	35.5 °C24 July 2003	9.8 °C23 January 2003	23.4 °C	2,555 mm	106
2002	35.4 °C17 May 2002	8.8 °C5 January 2002	23.6 °C	2,611 mm	123
2001	34.6 °C8 July 2001	9.7 °C8 January 2001	23.7 °C	2,371 mm	131
2000	35.7 °C13 May 2000	8.9 °C4 January 2000	23.1 °C	2,355 mm	106
1999	36.9 °C21 April 1999	8.9 °C13 January 1999	24.6 °C	2,248 mm	165
1998	37.7 °C19 May 1998	9.6 °C23 January 1998	24.0 °C	2,484 mm	133
1997	35.9 °C27 August 1997	8.2 °C16 January 1997	22.9 °C	2,186 mm	97
1996	35.9 °C20 June 1996	10.3 °C23 December 1996	23.4 °C	2,830 mm	118
1995	34.9 °C11 June 1995	7.4 °C6 January 1995	23.4 °C	3,288 mm	127
1994	35.8 °C15 July 1994	8.7 °C19 January 1994	23.3 °C	2,315 mm	117
1993	34.4 °C2 May 1993	8.7 °C17 January 1993	23.2 °C	3,012 mm	96
1992	37.0 °C16 April 1992	7.1 °C2 January 1992	22.9 °C	2,050 mm	112
1991	34.9 °C21 August 1991	7.4 °C31 December 1991	23.1 °C	3,045 mm	99
1990	33.8 °C1 September 1990	9.2 °C3 January 1990	23.2 °C	3,272 mm	104
1989	34.9 °C11 June 1989	7.4 °C13 January 1989	23.0 °C	2,628 mm	96
1988	34.3 °C1 August 1988	9.6 °C28 January 1988	23.6 °C	3,120 mm	91
1987	34.2 °C21 June 1987	8.1 °C5 January 1987	23.4 °C	2,409 mm	90
1986	38.0 °C1 April 1986	8.9 °C15 January 1986	23.5 °C	2,150 mm	114
1985	34.5 °C29 June 1985	8.1 °C19 January 1985	23.3 °C	2,324 mm	103
1984	35.7 °C1 June 1984	9.0 °C2 January 1984	23.2 °C	2,771 mm	104
1983	35.0 °C9 April 1983	6.3 °C6 January 1983	23.0 °C	2,561 mm	103
1982	34.9 °C1 August 1982	7.8 °C28 December 1982	23.3 °C	2,276 mm	113
1981	35.0 °C5 May 1981	7.8 °C11 January 1981	23.5 °C	1,875 mm	129
1980	34.3 °C2 September 1980	8.1 °C10 January 1980	23.1 °C	2,301 mm	100
1979	37.6 °C6 June 1979	7.4 °C8 January 1979	23.8 °C	1,806 mm	131
1978	37.8 °C17 May 1978	7.0 °C5 January 1978	23.4 °C	2,152 mm	145
1977	33.6 °C11 September 1977	8.1 °C24 January 1977	22.9 °C	2,762 mm	93
1976	34.7 °C25 May 1976	8.5 °C2 January 1976	23.2 °C	1,986 mm	108
1975	35.3 °C2 April 1975	7.8 °C10 January 1975	23.2 °C	2,276 mm	114
1974	35.5 °C13 August 1974	8.2 °C18 January 1974	23.2 °C	2,645 mm	87
1973	36.4 °C9 April 1973	8.9 °C20 January 1973	23.6 °C	2,876 mm	123
1972	34.8 °C13 July 1972	8.7 °C18 January 1972	23.1 °C	2,738 mm	98
1971	36.0 °C21 May 1971	8.2 °C11 January 1971	23.2 °C	2,278 mm	128
1970	35.1 °C21 August 1970	8.2 °C30 January 1970	23.2 °C	2,463 mm	108
1969	35.1 °C31 May 1969	7.1 °C16 January 1969	23.5 °C	1,889 mm	145
1968	34.9 °C9 May 1968	7.8 °C31 December 1968	22.8 °C	2,639 mm	91
1967	34.2 °C28 August 1967	8.5 °C21 January 1967	23.1 °C	2,340 mm	100
1966	35.1 °C1 April 1966	9.6 °C31 January 1966	23.1 °C	2,650 mm	70
1965	34.3 °C11 June 1965	11.0 °C21 December 1965	22.9 °C	2,290 mm	70
1964	37.1 °C16 March 1964	9.1 °C28 January 1964	23.8 °C	2,889 mm	123
1963	36.7 °C1 April 1963	9.0 °C22 January 1963	23.6 °C	2,592 mm	123
1962	35.1 °C16 April 1962	6.0 °C4 January 1962	23.3 °C	2,702 mm	117
1961	36.0 °C16 April 1961	5.6 °C28 December 1961	23.1 °C	2,393 mm	106
1960	38.8 °C1 May 1960	7.6 °C25 January 1960	23.9 °C	2,905 mm	128
1959	34.9 °C30 August 1959	8.9 °C1 February 1959	23.0 °C	3,280 mm	86
1958	35.1 °C29 March 1958	9.3 °C19 January 1958	23.2 °C	3,553 mm	94
1957	37.9 °C14 April 1957	9.2 °C18 January 1957	23.0 °C	2,712 mm	108
1956	35.1 °C18 April 1956	8.4 °C3 January 1956	23.2 °C	2,712 mm	87
1955	35.1 °C16 March 1955	8.9 °C3 January 1955	23.2 °C	2,240 mm	95
1954	34.4 °C23 March 1954	9.5 °C22 January 1954	23.0 °C	2,559 mm	67
1953	34.9 °C14 August 1953	7.2 °C26 January 1953	22.9 °C	2,619 mm	63
1952	33.4 °C15 April 1952	9.2 °C14 January 1952	23.0 °C	2,585 mm	82
1951	34.2 °C24 July 1951	9.4 °C26 January 1951	22.9 °C	2,678 mm	64
1950	34.0 °C10 April 1950	9.7 °C6 January 1950	23.0 °C	2,370 mm	71
1949	32.7 °C13 July 1949	10.0 °C25 December 1949	22.9 °C	2,665 mm	66
1948	33.5 °C28 July 1948	9.5 °C15 December 1948	23.1 °C	2,095 mm	87
1947	37.3 °C18 May 1947	10.3 °C17 January 1947	23.6 °C	2,509 mm	123
1946	35.4 °C19 April 1946	9.9 °C2 January 1946	23.8 °C	1,684 mm	129
1945	36.7 °C4 April 1945	8.8 °C9 January 1945	23.2 °C	2,222 mm	98
1944	34.8 °C18 August 1944	10.5 °C20 January 1944	23.4 °C	2,147 mm	112
1943	34.1 °C10 July 1943	10.0 °C3 February 1943	22.4 °C	2,411 mm	44
1942	35.3 °C18 March 1942	10.0 °C4 January 1942	23.2 °C	2,738 mm	76
1941	33.3 °C10 July 1941	9.9 °C1 January 1941	22.9 °C	2,173 mm	70
1940	33.9 °C1 July 1940	9.3 °C9 January 1940	22.7 °C	2,089 mm	73

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

29.6 °C

+1.7 °C

Hot days (≥ 30 °C)

184 d/yr

+68

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1821 mm

-623 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	24.8 °C	+2.1 °C	10 mm	-5 mm
Feb	24.7 °C	0.0 °C	22 mm	-6 mm
Mar	28.4 °C	+0.2 °C	65 mm	-19 mm
Apr	31.1 °C	+2.2 °C	163 mm	-76 mm
May	29.5 °C	+0.2 °C	365 mm	-11 mm
Jun	32.7 °C	+2.4 °C	248 mm	-216 mm
Jul	33.7 °C	+3.2 °C	270 mm	-175 mm
Aug	31.6 °C	+0.9 °C	360 mm	-10 mm
Sep	32.8 °C	+2.7 °C	182 mm	-100 mm
Oct	31.2 °C	+2.3 °C	92 mm	-25 mm
Nov	28.3 °C	+1.8 °C	45 mm	+29 mm
Dec	25.6 °C	+1.9 °C	0 mm	-9 mm

The year's extremes

Hottest day

37.6 °C

13 Jul 2025

Coldest day

11.5 °C

12 Jan 2025

Wettest day

138.5 mm

30 May 2025

Windiest day

26.8 km/h

18 Mar 2025

Strongest gust

55.8 km/h

18 Mar 2025

Hottest feels-like

46.3 °C

13 Jun 2025

Coldest feels-like

11.1 °C

12 Jan 2025

Sunniest day

13.1 h

11 Jul 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 Biswanath Chariali?

Biswanath Chariali has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 23.5 °C and it receives 2,444 mm of precipitation per year.

What is the hottest day ever recorded in Biswanath Chariali?

The hottest day measured in Biswanath Chariali between 1940 and 2025 was 25 May 2024, reaching 40.0 °C.

What is the coldest day in Biswanath Chariali?

The coldest day measured in Biswanath Chariali between 1940 and 2025 was 28 December 1961, at 5.6 °C.

Does it snow in Biswanath Chariali?

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

Has the climate of Biswanath Chariali warmed?

Yes: Biswanath Chariali warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Biswanath Chariali?

The wettest day measured in Biswanath Chariali between 1940 and 2025 was 28 August 1942, with 261 mm of rain in 24 hours.

What was the windiest day in Biswanath Chariali?

The windiest day measured in Biswanath Chariali between 1940 and 2025 was 19 March 1985, with winds reaching 36.3 km/h.

What is the warmest month in Biswanath Chariali?

The warmest month in Biswanath Chariali is August (27.9 °C on average); the coldest is January (16.4 °C).

How much does it rain in Biswanath Chariali?

Biswanath Chariali receives on average 2,444 mm of precipitation per year, spread over about 195 rainy days.

Is it sunny in Biswanath Chariali?

Biswanath Chariali gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.

Are there tropical nights in Biswanath Chariali?

Yes: Biswanath Chariali has on average 199 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Biswanath Chariali?

In Biswanath Chariali, between 1940 and 2025, the highest apparent temperature reached 46.8 °C on 5 September 2023, and the lowest was 3.4 °C on 28 December 1961.

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