Sultānganj climate — normals and trends
Sultānganj (India) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 25.3 °C and it receives 1,281 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 (30.5 °C on average) and the coldest is January (16.5 °C). Rainfall peaks in July.
Sultānganj averages 0 frost days, 217 hot days (≥ 30 °C) and 133 rainy days per year.
Sultānganj has warmed by +0.9 °C between 1940 and 2025, or +0.11 °C per decade. This trend is statistically significant.
The hottest day of the period reached 46.1 °C (on 25 May 1957) and the coldest 3.9 °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
SultānganjBihar
- coords
- 25.24°, 86.74°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.3°C
Average daily high
30.7°C
Average daily low
20.8°C
Annual rainfall
1,281mm
Sunshine / day
9.8h
Mean relative humidity
70%
Average peak wind
13.0km/h
Seasonal range
14.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
217 d/yr
Rainy days (≥ 1 mm)
133 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.6 °C
Average feels-like low
23.0 °C
Average peak gust
28.2 km/h
Tropical nights (≥ 20 °C)
222 d/yr
Solar radiation
17.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.9 °C
since 1940
+0.1 °C per decade · r² = 0.23 · 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
46.1 °C
25 May 1957
Coldest day
3.9 °C
9 January 2013
Wettest day
266 mm
30 June 1957
Windiest day
40.5 km/h
10 November 1995
Strongest gust
82.4 km/h
10 November 1995
Hottest feels-like
48.9 °C
1 June 1947
Coldest feels-like
1.3 °C
31 January 1964
Sunniest day
13.1 h
8 June 1972
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 | 22.4 °C | -0.8 °C | 0 mm | -21 mm |
| Feb | 27.5 °C | +0.8 °C | 0 mm | -17 mm |
| Mar | 32.1 °C | -0.4 °C | 15 mm | -8 mm |
| Apr | 34.6 °C | -1.8 °C | 54 mm | +22 mm |
| May | 34.3 °C | -2.0 °C | 141 mm | +68 mm |
| Jun | 33.9 °C | -0.5 °C | 160 mm | -38 mm |
| Jul | 32.5 °C | +0.5 °C | 291 mm | -30 mm |
| Aug | 32.4 °C | +0.6 °C | 393 mm | +126 mm |
| Sep | 33.2 °C | +1.7 °C | 192 mm | -34 mm |
| Oct | 31.3 °C | +0.8 °C | 158 mm | +75 mm |
| Nov | 28.2 °C | +0.1 °C | 1 mm | -9 mm |
| Dec | 22.5 °C | -2.1 °C | 0 mm | -8 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 Sultānganj?
Sultānganj has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 25.3 °C and it receives 1,281 mm of precipitation per year.
What is the hottest day ever recorded in Sultānganj?
The hottest day measured in Sultānganj between 1940 and 2025 was 25 May 1957, reaching 46.1 °C.
What is the coldest day in Sultānganj?
The coldest day measured in Sultānganj between 1940 and 2025 was 9 January 2013, at 3.9 °C.
Does it snow in Sultānganj?
Almost never: Sultānganj sees virtually no snow, with about 0 frost days per year.
Has the climate of Sultānganj warmed?
Yes: Sultānganj warmed by +0.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sultānganj?
The wettest day measured in Sultānganj between 1940 and 2025 was 30 June 1957, with 266 mm of rain in 24 hours.
What was the windiest day in Sultānganj?
The windiest day measured in Sultānganj between 1940 and 2025 was 10 November 1995, with winds reaching 40.5 km/h.
What is the warmest month in Sultānganj?
The warmest month in Sultānganj is May (30.5 °C on average); the coldest is January (16.5 °C).
How much does it rain in Sultānganj?
Sultānganj receives on average 1,281 mm of precipitation per year, spread over about 133 rainy days.
Is it sunny in Sultānganj?
Sultānganj gets on average 9.8 hours of sunshine per day, roughly 3,577 hours per year over 1940-2025.
Are there tropical nights in Sultānganj?
Yes: Sultānganj has on average 222 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Sultānganj?
In Sultānganj, between 1940 and 2025, the highest apparent temperature reached 48.9 °C on 1 June 1947, and the lowest was 1.3 °C on 31 January 1964.
Compare Sultānganj with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Sultānganj