Muzaffarpur climate — normals and trends
Muzaffarpur (India) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 25.5 °C and it receives 1,278 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 (31.5 °C on average) and the coldest is January (16.4 °C). Rainfall peaks in July.
Muzaffarpur averages 0 frost days, 226 hot days (≥ 30 °C) and 122 rainy days per year.
Muzaffarpur has warmed by +1.0 °C between 1940 and 2025, or +0.11 °C per decade. This trend is statistically significant.
The hottest day of the period reached 46.7 °C (on 26 May 1957) and the coldest 3.4 °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
MuzaffarpurBihar
- coords
- 26.12°, 85.39°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.5°C
Average daily high
31.2°C
Average daily low
20.8°C
Annual rainfall
1,278mm
Sunshine / day
10.0h
Mean relative humidity
67%
Average peak wind
15.3km/h
Seasonal range
15.1°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
226 d/yr
Rainy days (≥ 1 mm)
122 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.7 °C
Average feels-like low
22.5 °C
Average peak gust
30.5 km/h
Tropical nights (≥ 20 °C)
220 d/yr
Solar radiation
18.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.0 °C
since 1940
+0.1 °C per decade · r² = 0.23 · 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
46.7 °C
26 May 1957
Coldest day
3.4 °C
9 January 2013
Wettest day
314 mm
11 July 1999
Windiest day
47.0 km/h
10 November 1995
Strongest gust
86.0 km/h
8 August 1979
Hottest feels-like
49.5 °C
18 June 2005
Coldest feels-like
0.5 °C
9 January 2013
Sunniest day
13.0 h
23 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 | 21.7 °C | -1.4 °C | 0 mm | -21 mm |
| Feb | 27.2 °C | +0.5 °C | 0 mm | -18 mm |
| Mar | 32.5 °C | -0.4 °C | 2 mm | -15 mm |
| Apr | 35.8 °C | -1.5 °C | 29 mm | +6 mm |
| May | 36.3 °C | -1.4 °C | 46 mm | -2 mm |
| Jun | 36.7 °C | +1.0 °C | 96 mm | -80 mm |
| Jul | 34.5 °C | +2.0 °C | 193 mm | -166 mm |
| Aug | 32.9 °C | +0.7 °C | 348 mm | +54 mm |
| Sep | 33.4 °C | +1.7 °C | 241 mm | +12 mm |
| Oct | 31.0 °C | +0.1 °C | 270 mm | +196 mm |
| Nov | 28.6 °C | 0.0 °C | 1 mm | -8 mm |
| Dec | 22.3 °C | -2.5 °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 Muzaffarpur?
Muzaffarpur has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 25.5 °C and it receives 1,278 mm of precipitation per year.
What is the hottest day ever recorded in Muzaffarpur?
The hottest day measured in Muzaffarpur between 1940 and 2025 was 26 May 1957, reaching 46.7 °C.
What is the coldest day in Muzaffarpur?
The coldest day measured in Muzaffarpur between 1940 and 2025 was 9 January 2013, at 3.4 °C.
Does it snow in Muzaffarpur?
Almost never: Muzaffarpur sees virtually no snow, with about 0 frost days per year.
Has the climate of Muzaffarpur warmed?
Yes: Muzaffarpur warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Muzaffarpur?
The wettest day measured in Muzaffarpur between 1940 and 2025 was 11 July 1999, with 314 mm of rain in 24 hours.
What was the windiest day in Muzaffarpur?
The windiest day measured in Muzaffarpur between 1940 and 2025 was 10 November 1995, with winds reaching 47.0 km/h.
What is the warmest month in Muzaffarpur?
The warmest month in Muzaffarpur is May (31.5 °C on average); the coldest is January (16.4 °C).
How much does it rain in Muzaffarpur?
Muzaffarpur receives on average 1,278 mm of precipitation per year, spread over about 122 rainy days.
Is it sunny in Muzaffarpur?
Muzaffarpur gets on average 10.0 hours of sunshine per day, roughly 3,650 hours per year over 1940-2025.
Are there tropical nights in Muzaffarpur?
Yes: Muzaffarpur has on average 220 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Muzaffarpur?
In Muzaffarpur, between 1940 and 2025, the highest apparent temperature reached 49.5 °C on 18 June 2005, and the lowest was 0.5 °C on 9 January 2013.
Compare Muzaffarpur with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Muzaffarpur