Lucknow climate — normals and trends
Lucknow (India) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 25.2 °C and it receives 1,025 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 (33.1 °C on average) and the coldest is January (15.0 °C). Rainfall peaks in July.
Lucknow averages 0 frost days, 222 hot days (≥ 30 °C) and 99 rainy days per year.
No statistically significant temperature trend emerges for Lucknow between 1940 and 2025: over this span, year-to-year swings outweigh the climate signal.
The hottest day of the period reached 47.3 °C (on 27 May 1944) and the coldest 3.0 °C (on 27 December 1961).
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
LucknowUttar Pradesh
- coords
- 26.84°, 80.92°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.2°C
Average daily high
31.2°C
Average daily low
20.1°C
Annual rainfall
1,025mm
Sunshine / day
10.2h
Mean relative humidity
62%
Average peak wind
14.9km/h
Seasonal range
18.1°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
222 d/yr
Rainy days (≥ 1 mm)
99 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.0 °C
Average feels-like low
21.2 °C
Average peak gust
30.3 km/h
Tropical nights (≥ 20 °C)
203 d/yr
Solar radiation
18.7 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
47.3 °C
27 May 1944
Coldest day
3.0 °C
27 December 1961
Wettest day
240 mm
29 July 1973
Windiest day
47.8 km/h
20 September 1980
Strongest gust
86.0 km/h
20 September 1980
Hottest feels-like
50.9 °C
29 May 2024
Coldest feels-like
-0.7 °C
2 January 1946
Sunniest day
13.0 h
30 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 | -1.1 °C | 1 mm | -23 mm |
| Feb | 27.3 °C | +1.7 °C | 0 mm | -21 mm |
| Mar | 32.8 °C | +0.9 °C | 1 mm | -13 mm |
| Apr | 37.8 °C | +0.1 °C | 7 mm | -3 mm |
| May | 38.4 °C | -1.5 °C | 10 mm | -8 mm |
| Jun | 37.0 °C | -1.0 °C | 132 mm | +22 mm |
| Jul | 33.6 °C | +0.7 °C | 188 mm | -117 mm |
| Aug | 32.4 °C | +0.5 °C | 253 mm | -23 mm |
| Sep | 33.2 °C | +1.4 °C | 223 mm | +41 mm |
| Oct | 30.8 °C | -0.5 °C | 73 mm | +25 mm |
| Nov | 28.2 °C | 0.0 °C | 1 mm | -6 mm |
| Dec | 21.7 °C | -2.1 °C | 0 mm | -11 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 Lucknow?
Lucknow has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 25.2 °C and it receives 1,025 mm of precipitation per year.
What is the hottest day ever recorded in Lucknow?
The hottest day measured in Lucknow between 1940 and 2025 was 27 May 1944, reaching 47.3 °C.
What is the coldest day in Lucknow?
The coldest day measured in Lucknow between 1940 and 2025 was 27 December 1961, at 3.0 °C.
Does it snow in Lucknow?
Almost never: Lucknow sees virtually no snow, with about 0 frost days per year.
Has the climate of Lucknow warmed?
Between 1940 and 2025, no statistically significant temperature trend emerges in Lucknow.
What is the wettest day in Lucknow?
The wettest day measured in Lucknow between 1940 and 2025 was 29 July 1973, with 240 mm of rain in 24 hours.
What was the windiest day in Lucknow?
The windiest day measured in Lucknow between 1940 and 2025 was 20 September 1980, with winds reaching 47.8 km/h.
What is the warmest month in Lucknow?
The warmest month in Lucknow is May (33.1 °C on average); the coldest is January (15.0 °C).
How much does it rain in Lucknow?
Lucknow receives on average 1,025 mm of precipitation per year, spread over about 99 rainy days.
Is it sunny in Lucknow?
Lucknow gets on average 10.2 hours of sunshine per day, roughly 3,723 hours per year over 1940-2025.
Are there tropical nights in Lucknow?
Yes: Lucknow has on average 203 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Lucknow?
In Lucknow, between 1940 and 2025, the highest apparent temperature reached 50.9 °C on 29 May 2024, and the lowest was -0.7 °C on 2 January 1946.
Compare Lucknow with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Lucknow