Dumraon climate — normals and trends
Dumraon (India) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 25.7 °C and it receives 1,182 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 May (33.0 °C on average) and the coldest is January (16.1 °C). Rainfall peaks in July.
Dumraon averages 0 frost days, 225 hot days (≥ 30 °C) and 114 rainy days per year.
Dumraon has warmed by +0.6 °C between 1940 and 2025, or +0.06 °C per decade. This trend is statistically significant.
The hottest day of the period reached 47.3 °C (on 29 May 1957) and the coldest 4.1 °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
DumraonBihar
- coords
- 25.55°, 84.15°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.7°C
Average daily high
31.5°C
Average daily low
20.8°C
Annual rainfall
1,182mm
Sunshine / day
10.2h
Mean relative humidity
65%
Average peak wind
14.5km/h
Seasonal range
16.9°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
225 d/yr
Rainy days (≥ 1 mm)
114 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.8 °C
Average feels-like low
22.6 °C
Average peak gust
29.6 km/h
Tropical nights (≥ 20 °C)
216 d/yr
Solar radiation
18.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.6 °C
since 1940
+0.1 °C per decade · r² = 0.08 · p = 0.008
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
47.3 °C
29 May 1957
Coldest day
4.1 °C
9 January 2013
Wettest day
258 mm
29 June 1997
Windiest day
45.0 km/h
28 July 1992
Strongest gust
83.5 km/h
10 November 1995
Hottest feels-like
51.2 °C
30 May 2024
Coldest feels-like
1.2 °C
9 January 2013
Sunniest day
13.0 h
14 May 1940
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 | 21.3 °C | -1.6 °C | 0 mm | -19 mm |
| Feb | 27.4 °C | +0.8 °C | 3 mm | -16 mm |
| Mar | 32.5 °C | -0.4 °C | 3 mm | -9 mm |
| Apr | 36.5 °C | -1.7 °C | 22 mm | +8 mm |
| May | 37.1 °C | -2.4 °C | 42 mm | +15 mm |
| Jun | 36.5 °C | -0.8 °C | 146 mm | -9 mm |
| Jul | 33.4 °C | +0.6 °C | 335 mm | -5 mm |
| Aug | 32.2 °C | 0.0 °C | 319 mm | +21 mm |
| Sep | 32.8 °C | +1.1 °C | 268 mm | +55 mm |
| Oct | 30.6 °C | -0.1 °C | 264 mm | +200 mm |
| Nov | 27.5 °C | -0.7 °C | 3 mm | -8 mm |
| Dec | 21.3 °C | -3.2 °C | 0 mm | -9 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 Dumraon?
Dumraon has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 25.7 °C and it receives 1,182 mm of precipitation per year.
What is the hottest day ever recorded in Dumraon?
The hottest day measured in Dumraon between 1940 and 2025 was 29 May 1957, reaching 47.3 °C.
What is the coldest day in Dumraon?
The coldest day measured in Dumraon between 1940 and 2025 was 9 January 2013, at 4.1 °C.
Does it snow in Dumraon?
Almost never: Dumraon sees virtually no snow, with about 0 frost days per year.
Has the climate of Dumraon warmed?
Yes: Dumraon warmed by +0.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Dumraon?
The wettest day measured in Dumraon between 1940 and 2025 was 29 June 1997, with 258 mm of rain in 24 hours.
What was the windiest day in Dumraon?
The windiest day measured in Dumraon between 1940 and 2025 was 28 July 1992, with winds reaching 45.0 km/h.
What is the warmest month in Dumraon?
The warmest month in Dumraon is May (33.0 °C on average); the coldest is January (16.1 °C).
How much does it rain in Dumraon?
Dumraon receives on average 1,182 mm of precipitation per year, spread over about 114 rainy days.
Is it sunny in Dumraon?
Dumraon gets on average 10.2 hours of sunshine per day, roughly 3,723 hours per year over 1940-2025.
Are there tropical nights in Dumraon?
Yes: Dumraon has on average 216 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Dumraon?
In Dumraon, between 1940 and 2025, the highest apparent temperature reached 51.2 °C on 30 May 2024, and the lowest was 1.2 °C on 9 January 2013.
Compare Dumraon with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Dumraon