Biswān climate — normals and trends
Biswān (India) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 24.8 °C and it receives 1,122 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 (32.3 °C on average) and the coldest is January (14.7 °C). Rainfall peaks in July.
Biswān averages 0 frost days, 215 hot days (≥ 30 °C) and 106 rainy days per year.
No statistically significant temperature trend emerges for Biswān between 1940 and 2025: over this span, year-to-year swings outweigh the climate signal.
The hottest day of the period reached 46.8 °C (on 8 June 1966) and the coldest 3.2 °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
BiswānUttar Pradesh
- coords
- 27.50°, 81.00°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
24.8°C
Average daily high
30.8°C
Average daily low
19.8°C
Annual rainfall
1,122mm
Sunshine / day
10.2h
Mean relative humidity
64%
Average peak wind
14.9km/h
Seasonal range
17.6°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
215 d/yr
Rainy days (≥ 1 mm)
106 d/yr
Annual snowfall
0.0 cm
Average feels-like high
32.8 °C
Average feels-like low
20.8 °C
Average peak gust
30.1 km/h
Tropical nights (≥ 20 °C)
199 d/yr
Solar radiation
18.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
No clear trend over this period
Over a short window, year-to-year swings outweigh the climate signal. Try 86 years.
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
46.8 °C
8 June 1966
Coldest day
3.2 °C
9 January 2013
Wettest day
338 mm
9 October 1952
Windiest day
45.6 km/h
13 October 1961
Strongest gust
92.2 km/h
20 September 1980
Hottest feels-like
50.7 °C
30 May 2024
Coldest feels-like
-0.8 °C
11 February 1950
Sunniest day
13.0 h
28 April 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 | 20.8 °C | -0.7 °C | 3 mm | -23 mm |
| Feb | 27.1 °C | +1.9 °C | 1 mm | -23 mm |
| Mar | 32.6 °C | +1.4 °C | 10 mm | -9 mm |
| Apr | 37.3 °C | +0.3 °C | 7 mm | -6 mm |
| May | 37.4 °C | -1.6 °C | 22 mm | -3 mm |
| Jun | 36.6 °C | -0.8 °C | 132 mm | +7 mm |
| Jul | 33.9 °C | +1.2 °C | 178 mm | -139 mm |
| Aug | 32.4 °C | +0.6 °C | 347 mm | +57 mm |
| Sep | 32.9 °C | +1.2 °C | 370 mm | +169 mm |
| Oct | 30.9 °C | 0.0 °C | 67 mm | +7 mm |
| Nov | 27.9 °C | +0.1 °C | 0 mm | -7 mm |
| Dec | 21.0 °C | -2.5 °C | 0 mm | -14 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 Biswān?
Biswān has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 24.8 °C and it receives 1,122 mm of precipitation per year.
What is the hottest day ever recorded in Biswān?
The hottest day measured in Biswān between 1940 and 2025 was 8 June 1966, reaching 46.8 °C.
What is the coldest day in Biswān?
The coldest day measured in Biswān between 1940 and 2025 was 9 January 2013, at 3.2 °C.
Does it snow in Biswān?
Almost never: Biswān sees virtually no snow, with about 0 frost days per year.
Has the climate of Biswān warmed?
Between 1940 and 2025, no statistically significant temperature trend emerges in Biswān.
What is the wettest day in Biswān?
The wettest day measured in Biswān between 1940 and 2025 was 9 October 1952, with 338 mm of rain in 24 hours.
What was the windiest day in Biswān?
The windiest day measured in Biswān between 1940 and 2025 was 13 October 1961, with winds reaching 45.6 km/h.
What is the warmest month in Biswān?
The warmest month in Biswān is May (32.3 °C on average); the coldest is January (14.7 °C).
How much does it rain in Biswān?
Biswān receives on average 1,122 mm of precipitation per year, spread over about 106 rainy days.
Is it sunny in Biswān?
Biswān gets on average 10.2 hours of sunshine per day, roughly 3,723 hours per year over 1940-2025.
Are there tropical nights in Biswān?
Yes: Biswān has on average 199 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Biswān?
In Biswān, between 1940 and 2025, the highest apparent temperature reached 50.7 °C on 30 May 2024, and the lowest was -0.8 °C on 11 February 1950.
Compare Biswān with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Biswān