Rāiganj climate — normals and trends
Rāiganj (India) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 25.0 °C and it receives 1,655 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 June (28.9 °C on average) and the coldest is January (17.0 °C). Rainfall peaks in July.
Rāiganj averages 0 frost days, 211 hot days (≥ 30 °C) and 153 rainy days per year.
Rāiganj has warmed by +1.0 °C between 1940 and 2025, or +0.12 °C per decade. This trend is statistically significant.
The hottest day of the period reached 46.4 °C (on 26 May 1957) and the coldest 4.2 °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
RāiganjWest Bengal
- coords
- 25.61°, 88.12°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.0°C
Average daily high
30.4°C
Average daily low
20.7°C
Annual rainfall
1,655mm
Sunshine / day
9.4h
Mean relative humidity
72%
Average peak wind
12.5km/h
Seasonal range
11.9°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
211 d/yr
Rainy days (≥ 1 mm)
153 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.6 °C
Average feels-like low
23.0 °C
Average peak gust
27.5 km/h
Tropical nights (≥ 20 °C)
223 d/yr
Solar radiation
16.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.0 °C
since 1940
+0.1 °C per decade · r² = 0.31 · 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
46.4 °C
26 May 1957
Coldest day
4.2 °C
9 January 2013
Wettest day
188 mm
2 July 2024
Windiest day
47.7 km/h
26 May 2009
Strongest gust
103.3 km/h
26 May 2009
Hottest feels-like
48.7 °C
12 May 1988
Coldest feels-like
1.5 °C
9 January 2013
Sunniest day
13.2 h
6 June 1944
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 | 23.3 °C | -0.6 °C | 0 mm | -17 mm |
| Feb | 27.4 °C | +0.2 °C | 1 mm | -16 mm |
| Mar | 31.8 °C | -0.7 °C | 14 mm | -11 mm |
| Apr | 32.9 °C | -2.2 °C | 104 mm | +36 mm |
| May | 32.7 °C | -1.1 °C | 313 mm | +141 mm |
| Jun | 33.8 °C | +1.1 °C | 207 mm | -98 mm |
| Jul | 33.0 °C | +1.1 °C | 230 mm | -129 mm |
| Aug | 32.7 °C | +0.8 °C | 255 mm | -48 mm |
| Sep | 33.4 °C | +2.0 °C | 292 mm | +27 mm |
| Oct | 31.7 °C | +1.2 °C | 196 mm | +88 mm |
| Nov | 29.0 °C | +0.5 °C | 53 mm | +42 mm |
| Dec | 23.6 °C | -1.8 °C | 0 mm | -6 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 Rāiganj?
Rāiganj has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 25.0 °C and it receives 1,655 mm of precipitation per year.
What is the hottest day ever recorded in Rāiganj?
The hottest day measured in Rāiganj between 1940 and 2025 was 26 May 1957, reaching 46.4 °C.
What is the coldest day in Rāiganj?
The coldest day measured in Rāiganj between 1940 and 2025 was 9 January 2013, at 4.2 °C.
Does it snow in Rāiganj?
Almost never: Rāiganj sees virtually no snow, with about 0 frost days per year.
Has the climate of Rāiganj warmed?
Yes: Rāiganj warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Rāiganj?
The wettest day measured in Rāiganj between 1940 and 2025 was 2 July 2024, with 188 mm of rain in 24 hours.
What was the windiest day in Rāiganj?
The windiest day measured in Rāiganj between 1940 and 2025 was 26 May 2009, with winds reaching 47.7 km/h.
What is the warmest month in Rāiganj?
The warmest month in Rāiganj is June (28.9 °C on average); the coldest is January (17.0 °C).
How much does it rain in Rāiganj?
Rāiganj receives on average 1,655 mm of precipitation per year, spread over about 153 rainy days.
Is it sunny in Rāiganj?
Rāiganj gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.
Are there tropical nights in Rāiganj?
Yes: Rāiganj has on average 223 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Rāiganj?
In Rāiganj, between 1940 and 2025, the highest apparent temperature reached 48.7 °C on 12 May 1988, and the lowest was 1.5 °C on 9 January 2013.
Compare Rāiganj with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Rāiganj