Chilmāri climate — normals and trends

Q: What is the climate of Chilmāri?

Chilmāri has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 24.9 °C and it receives 2,107 mm of precipitation per year.

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

The hottest day measured in Chilmāri between 1940 and 2025 was 21 April 1957, reaching 43.4 °C.

Q: What is the coldest day in Chilmāri?

The coldest day measured in Chilmāri between 1940 and 2025 was 9 January 2013, at 6.0 °C.

Q: Does it snow in Chilmāri?

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

Q: Has the climate of Chilmāri warmed?

Yes: Chilmāri warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Chilmāri?

The wettest day measured in Chilmāri between 1940 and 2025 was 23 June 1954, with 154 mm of rain in 24 hours.

Q: What was the windiest day in Chilmāri?

The windiest day measured in Chilmāri between 1940 and 2025 was 26 May 2009, with winds reaching 41.1 km/h.

Q: What is the warmest month in Chilmāri?

The warmest month in Chilmāri is August (28.4 °C on average); the coldest is January (17.9 °C).

Q: How much does it rain in Chilmāri?

Chilmāri receives on average 2,107 mm of precipitation per year, spread over about 174 rainy days.

Q: Is it sunny in Chilmāri?

Chilmāri gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.

Chilmāri (Bangladesh) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 24.9 °C and it receives 2,107 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 (28.4 °C on average) and the coldest is January (17.9 °C). Rainfall peaks in May.

Chilmāri averages 0 frost days, 182 hot days (≥ 30 °C) and 174 rainy days per year.

Chilmāri has warmed by +1.1 °C between 1940 and 2025, or +0.13 °C per decade. This trend is statistically significant.

The hottest day of the period reached 43.4 °C (on 21 April 1957) and the coldest 6.0 °C (on 9 January 2013).

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

ChilmāriRangpur Division

coords: 25.56°, 89.67°
period: 1940–2025 · 86 yrs

CwaHumid subtropical, dry winterWarmest monthAugustColdest monthJanuaryWettest monthMayDriest monthDecember

Mean daily temperature

24.9°C

Average daily high

29.5°C

Average daily low

21.1°C

Annual rainfall

2,107mm

Sunshine / day

9.1h

Mean relative humidity

78%

Average peak wind

12.0km/h

Seasonal range

10.5°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

182 d/yr

Rainy days (≥ 1 mm)

174 d/yr

Annual snowfall

0.0 cm

Average feels-like high

33.3 °C

Average feels-like low

23.9 °C

Average peak gust

26.2 km/h

Tropical nights (≥ 20 °C)

231 d/yr

Solar radiation

15.9 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.1 °C

since 1940

+0.1 °C per decade · r² = 0.47 · 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

43.4 °C

21 April 1957

Coldest day

6.0 °C

9 January 2013

Wettest day

154 mm

23 June 1954

Windiest day

41.1 km/h

26 May 2009

Strongest gust

87.8 km/h

26 May 2009

Hottest feels-like

47.8 °C

23 September 2024

Coldest feels-like

4.2 °C

9 January 2013

Sunniest day

13.3 h

31 May 1979

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	37.6 °C10 May 2025	11.6 °C9 January 2025	25.7 °C	1,977 mm	217
2024	39.4 °C30 April 2024	9.6 °C28 January 2024	25.7 °C	2,027 mm	212
2023	38.0 °C17 April 2023	10.2 °C19 January 2023	25.9 °C	2,142 mm	224
2022	36.3 °C18 August 2022	10.1 °C29 January 2022	25.5 °C	2,204 mm	205
2021	36.1 °C12 July 2021	9.2 °C1 February 2021	25.6 °C	1,706 mm	223
2020	36.8 °C20 September 2020	9.4 °C19 December 2020	25.1 °C	2,443 mm	204
2019	37.3 °C12 August 2019	11.1 °C28 December 2019	25.4 °C	2,329 mm	202
2018	37.1 °C20 July 2018	7.4 °C8 January 2018	25.2 °C	1,505 mm	212
2017	35.5 °C7 June 2017	6.3 °C14 January 2017	25.3 °C	2,615 mm	182
2016	36.6 °C24 April 2016	9.9 °C25 January 2016	25.6 °C	1,888 mm	219
2015	35.9 °C18 September 2015	9.5 °C1 February 2015	25.1 °C	2,469 mm	179
2014	39.2 °C25 April 2014	10.4 °C8 January 2014	25.2 °C	1,674 mm	217
2013	38.2 °C13 April 2013	6.0 °C9 January 2013	25.3 °C	1,363 mm	223
2012	37.5 °C14 May 2012	8.8 °C15 January 2012	25.1 °C	1,692 mm	222
2011	35.9 °C13 September 2011	8.9 °C12 January 2011	25.1 °C	1,910 mm	209
2010	38.0 °C5 April 2010	9.6 °C6 January 2010	25.7 °C	2,524 mm	222
2009	38.1 °C27 April 2009	11.4 °C27 December 2009	25.8 °C	2,180 mm	226
2008	36.3 °C28 April 2008	10.8 °C31 January 2008	25.2 °C	2,093 mm	192
2007	38.3 °C30 March 2007	9.6 °C17 January 2007	25.3 °C	2,690 mm	198
2006	38.0 °C26 March 2006	11.6 °C9 January 2006	25.7 °C	1,595 mm	223
2005	36.2 °C11 May 2005	10.9 °C4 February 2005	25.3 °C	2,340 mm	198
2004	37.6 °C27 March 2004	9.5 °C27 January 2004	25.1 °C	2,520 mm	177
2003	35.3 °C26 May 2003	7.1 °C22 January 2003	24.8 °C	2,338 mm	180
2002	35.1 °C20 September 2002	10.7 °C31 December 2002	24.9 °C	2,736 mm	177
2001	36.2 °C7 April 2001	8.3 °C11 January 2001	25.2 °C	1,995 mm	200
2000	37.4 °C6 April 2000	8.4 °C8 January 2000	24.7 °C	2,492 mm	186
1999	36.6 °C26 April 1999	9.7 °C19 January 1999	25.5 °C	1,744 mm	215
1998	38.8 °C14 April 1998	8.6 °C20 January 1998	25.2 °C	2,160 mm	200
1997	36.4 °C27 August 1997	9.6 °C26 January 1997	24.6 °C	2,110 mm	188
1996	40.4 °C8 April 1996	10.3 °C20 January 1996	25.3 °C	2,380 mm	204
1995	42.4 °C25 April 1995	8.2 °C3 January 1995	25.3 °C	2,305 mm	210
1994	40.4 °C6 May 1994	9.2 °C18 January 1994	25.2 °C	1,568 mm	212
1993	38.4 °C7 April 1993	9.0 °C14 January 1993	24.7 °C	3,047 mm	156
1992	40.4 °C14 April 1992	9.7 °C5 January 1992	24.8 °C	1,697 mm	200
1991	36.8 °C16 April 1991	9.6 °C7 January 1991	24.6 °C	2,390 mm	172
1990	35.9 °C14 April 1990	8.8 °C2 January 1990	24.7 °C	2,394 mm	161
1989	39.1 °C21 April 1989	7.4 °C13 January 1989	24.7 °C	2,014 mm	185
1988	37.9 °C13 April 1988	8.9 °C27 January 1988	25.2 °C	2,412 mm	182
1987	38.6 °C5 April 1987	10.3 °C5 January 1987	25.2 °C	2,048 mm	179
1986	39.6 °C30 March 1986	10.6 °C29 December 1986	24.8 °C	2,104 mm	163
1985	37.0 °C14 April 1985	10.8 °C19 January 1985	24.8 °C	1,754 mm	178
1984	39.1 °C4 April 1984	8.7 °C18 January 1984	24.6 °C	1,896 mm	173
1983	37.5 °C8 April 1983	7.0 °C5 February 1983	24.6 °C	2,088 mm	180
1982	37.4 °C24 May 1982	10.0 °C5 January 1982	24.8 °C	1,561 mm	186
1981	35.0 °C22 March 1981	9.3 °C9 January 1981	24.6 °C	1,434 mm	197
1980	39.9 °C15 April 1980	8.8 °C7 February 1980	24.8 °C	1,687 mm	182
1979	39.1 °C5 June 1979	8.8 °C4 February 1979	25.3 °C	1,806 mm	185
1978	37.1 °C9 April 1978	7.0 °C4 January 1978	24.6 °C	2,097 mm	189
1977	38.1 °C20 March 1977	7.6 °C30 January 1977	24.5 °C	2,199 mm	159
1976	38.9 °C11 April 1976	9.6 °C8 January 1976	24.9 °C	2,050 mm	203
1975	39.1 °C8 April 1975	8.5 °C15 January 1975	24.8 °C	1,919 mm	190
1974	34.8 °C17 March 1974	7.4 °C7 February 1974	24.3 °C	3,227 mm	154
1973	40.1 °C17 April 1973	9.0 °C16 January 1973	24.9 °C	2,651 mm	171
1972	39.2 °C1 May 1972	9.0 °C9 February 1972	24.9 °C	2,141 mm	191
1971	35.3 °C19 March 1971	7.5 °C30 January 1971	24.4 °C	2,225 mm	142
1970	40.8 °C12 May 1970	9.7 °C4 February 1970	24.9 °C	2,069 mm	182
1969	35.1 °C14 March 1969	9.0 °C17 January 1969	24.8 °C	2,006 mm	203
1968	37.7 °C11 May 1968	8.2 °C3 February 1968	24.4 °C	2,386 mm	162
1967	34.7 °C3 June 1967	9.1 °C31 January 1967	24.3 °C	2,160 mm	163
1966	39.6 °C16 April 1966	9.9 °C19 December 1966	24.7 °C	1,999 mm	155
1965	37.0 °C26 April 1965	9.9 °C8 January 1965	24.3 °C	2,329 mm	137
1964	40.3 °C9 April 1964	8.1 °C26 January 1964	25.1 °C	2,536 mm	188
1963	39.8 °C31 March 1963	8.0 °C4 January 1963	24.9 °C	2,400 mm	191
1962	38.7 °C15 April 1962	7.7 °C16 January 1962	24.9 °C	1,846 mm	195
1961	41.2 °C24 April 1961	8.3 °C10 February 1961	24.8 °C	1,967 mm	193
1960	42.9 °C1 May 1960	9.5 °C24 January 1960	25.6 °C	1,961 mm	204
1959	36.9 °C21 March 1959	10.7 °C8 January 1959	24.5 °C	2,712 mm	141
1958	37.7 °C25 March 1958	11.0 °C26 December 1958	25.2 °C	2,357 mm	190
1957	43.4 °C21 April 1957	9.1 °C13 February 1957	25.4 °C	1,630 mm	196
1956	42.0 °C18 April 1956	10.1 °C8 February 1956	24.8 °C	2,192 mm	172
1955	39.8 °C23 April 1955	8.5 °C2 January 1955	25.0 °C	1,781 mm	170
1954	41.0 °C26 April 1954	9.3 °C27 January 1954	24.7 °C	2,401 mm	153
1953	34.6 °C13 August 1953	8.4 °C26 January 1953	23.9 °C	2,417 mm	90
1952	35.3 °C14 April 1952	10.2 °C13 January 1952	24.1 °C	2,104 mm	130
1951	36.2 °C18 April 1951	10.4 °C24 January 1951	24.3 °C	2,141 mm	145
1950	34.7 °C11 April 1950	8.4 °C12 February 1950	24.2 °C	2,375 mm	126
1949	34.5 °C16 June 1949	10.3 °C23 December 1949	23.8 °C	2,382 mm	93
1948	37.7 °C13 April 1948	10.9 °C22 December 1948	24.5 °C	2,287 mm	165
1947	39.7 °C10 April 1947	10.6 °C17 January 1947	25.1 °C	1,518 mm	176
1946	38.0 °C13 March 1946	11.0 °C2 January 1946	24.9 °C	1,833 mm	177
1945	39.7 °C4 April 1945	7.7 °C8 January 1945	24.6 °C	1,835 mm	176
1944	36.1 °C2 May 1944	11.8 °C17 January 1944	25.0 °C	1,380 mm	184
1943	33.9 °C4 March 1943	10.5 °C2 February 1943	24.1 °C	1,861 mm	132
1942	38.2 °C5 April 1942	10.5 °C6 January 1942	24.5 °C	2,195 mm	141
1941	35.3 °C6 April 1941	10.3 °C22 January 1941	24.2 °C	1,882 mm	134
1940	35.2 °C23 April 1940	10.5 °C21 December 1940	24.1 °C	1,716 mm	148

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

30.3 °C

+0.8 °C

Hot days (≥ 30 °C)

217 d/yr

+35

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1977 mm

-130 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	24.2 °C	0.0 °C	1 mm	-12 mm
Feb	27.5 °C	+0.4 °C	2 mm	-15 mm
Mar	31.7 °C	+0.4 °C	13 mm	-43 mm
Apr	32.0 °C	-0.2 °C	175 mm	-23 mm
May	31.6 °C	+0.4 °C	504 mm	+68 mm
Jun	33.1 °C	+1.8 °C	225 mm	-208 mm
Jul	33.0 °C	+1.8 °C	239 mm	-79 mm
Aug	32.1 °C	+0.8 °C	331 mm	+78 mm
Sep	33.3 °C	+2.3 °C	233 mm	+7 mm
Oct	31.9 °C	+1.8 °C	145 mm	+10 mm
Nov	29.1 °C	+1.0 °C	111 mm	+92 mm
Dec	24.5 °C	-0.8 °C	0 mm	-5 mm

The year's extremes

Hottest day

37.6 °C

10 May 2025

Coldest day

11.6 °C

9 Jan 2025

Wettest day

105.0 mm

1 Nov 2025

Windiest day

28.6 km/h

17 Mar 2025

Strongest gust

55.4 km/h

29 May 2025

Hottest feels-like

45.7 °C

13 Jul 2025

Coldest feels-like

11.2 °C

9 Jan 2025

Sunniest day

12.7 h

8 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 Chilmāri?

Chilmāri has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 24.9 °C and it receives 2,107 mm of precipitation per year.

What is the hottest day ever recorded in Chilmāri?

The hottest day measured in Chilmāri between 1940 and 2025 was 21 April 1957, reaching 43.4 °C.

What is the coldest day in Chilmāri?

The coldest day measured in Chilmāri between 1940 and 2025 was 9 January 2013, at 6.0 °C.

Does it snow in Chilmāri?

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

Has the climate of Chilmāri warmed?

Yes: Chilmāri warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Chilmāri?

The wettest day measured in Chilmāri between 1940 and 2025 was 23 June 1954, with 154 mm of rain in 24 hours.

What was the windiest day in Chilmāri?

The windiest day measured in Chilmāri between 1940 and 2025 was 26 May 2009, with winds reaching 41.1 km/h.

What is the warmest month in Chilmāri?

The warmest month in Chilmāri is August (28.4 °C on average); the coldest is January (17.9 °C).

How much does it rain in Chilmāri?

Chilmāri receives on average 2,107 mm of precipitation per year, spread over about 174 rainy days.

Is it sunny in Chilmāri?

Chilmāri gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.

Are there tropical nights in Chilmāri?

Yes: Chilmāri has on average 231 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Chilmāri?

In Chilmāri, between 1940 and 2025, the highest apparent temperature reached 47.8 °C on 23 September 2024, and the lowest was 4.2 °C on 9 January 2013.

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