Duliajan climate — normals and trends
Duliajan (India) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 23.2 °C and it receives 2,931 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 (27.8 °C on average) and the coldest is January (16.4 °C). Rainfall peaks in July.
Duliajan averages 0 frost days, 108 hot days (≥ 30 °C) and 217 rainy days per year.
Duliajan 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 38.6 °C (on 8 June 2023) and the coldest 5.7 °C (on 6 January 1983).
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
DuliajanAssam
- coords
- 27.36°, 95.32°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
23.2°C
Average daily high
27.5°C
Average daily low
19.6°C
Annual rainfall
2,931mm
Sunshine / day
9.4h
Mean relative humidity
80%
Average peak wind
6.6km/h
Seasonal range
11.4°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
108 d/yr
Rainy days (≥ 1 mm)
217 d/yr
Annual snowfall
0.0 cm
Average feels-like high
31.3 °C
Average feels-like low
22.5 °C
Average peak gust
22.5 km/h
Tropical nights (≥ 20 °C)
192 d/yr
Solar radiation
15.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.3 °C
since 1940
+0.2 °C per decade · r² = 0.52 · p = < 0.001
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
8 June 2023
Coldest day
5.7 °C
6 January 1983
Wettest day
181 mm
8 August 1947
Windiest day
21.4 km/h
7 June 1946
Strongest gust
62.3 km/h
13 March 1983
Hottest feels-like
47.9 °C
23 September 2024
Coldest feels-like
4.1 °C
6 January 1983
Sunniest day
13.1 h
6 July 1979
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?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 24.2 °C | +2.1 °C | 38 mm | +2 mm |
| Feb | 23.7 °C | 0.0 °C | 45 mm | -13 mm |
| Mar | 25.9 °C | -0.7 °C | 101 mm | -21 mm |
| Apr | 29.0 °C | +1.3 °C | 135 mm | -117 mm |
| May | 29.9 °C | +0.5 °C | 332 mm | -12 mm |
| Jun | 33.0 °C | +2.4 °C | 322 mm | -181 mm |
| Jul | 33.4 °C | +2.8 °C | 347 mm | -169 mm |
| Aug | 31.0 °C | +0.1 °C | 312 mm | -164 mm |
| Sep | 32.9 °C | +2.6 °C | 396 mm | +14 mm |
| Oct | 30.7 °C | +2.0 °C | 137 mm | -46 mm |
| Nov | 27.8 °C | +1.8 °C | 65 mm | +28 mm |
| Dec | 24.9 °C | +1.8 °C | 3 mm | -20 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Duliajan?
Duliajan has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 23.2 °C and it receives 2,931 mm of precipitation per year.
What is the hottest day ever recorded in Duliajan?
The hottest day measured in Duliajan between 1940 and 2025 was 8 June 2023, reaching 38.6 °C.
What is the coldest day in Duliajan?
The coldest day measured in Duliajan between 1940 and 2025 was 6 January 1983, at 5.7 °C.
Does it snow in Duliajan?
Almost never: Duliajan sees virtually no snow, with about 0 frost days per year.
Has the climate of Duliajan warmed?
Yes: Duliajan warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Duliajan?
The wettest day measured in Duliajan between 1940 and 2025 was 8 August 1947, with 181 mm of rain in 24 hours.
What was the windiest day in Duliajan?
The windiest day measured in Duliajan between 1940 and 2025 was 7 June 1946, with winds reaching 21.4 km/h.
What is the warmest month in Duliajan?
The warmest month in Duliajan is August (27.8 °C on average); the coldest is January (16.4 °C).
How much does it rain in Duliajan?
Duliajan receives on average 2,931 mm of precipitation per year, spread over about 217 rainy days.
Is it sunny in Duliajan?
Duliajan gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.
Are there tropical nights in Duliajan?
Yes: Duliajan has on average 192 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Duliajan?
In Duliajan, between 1940 and 2025, the highest apparent temperature reached 47.9 °C on 23 September 2024, and the lowest was 4.1 °C on 6 January 1983.
Compare Duliajan with another city
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Nearby cities
The climate around Duliajan