Jainagar climate — normals and trends
Jainagar (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 1,536 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 (30.3 °C on average) and the coldest is January (16.2 °C). Rainfall peaks in July.
Jainagar averages 0 frost days, 214 hot days (≥ 30 °C) and 140 rainy days per year.
Jainagar has warmed by +1.4 °C between 1940 and 2025, or +0.16 °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 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
JainagarBihar
- coords
- 26.59°, 86.14°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.0°C
Average daily high
30.7°C
Average daily low
20.2°C
Annual rainfall
1,536mm
Sunshine / day
10.0h
Mean relative humidity
68%
Average peak wind
14.8km/h
Seasonal range
14.1°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
214 d/yr
Rainy days (≥ 1 mm)
140 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.3 °C
Average feels-like low
22.0 °C
Average peak gust
31.2 km/h
Tropical nights (≥ 20 °C)
213 d/yr
Solar radiation
17.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.4 °C
since 1940
+0.2 °C per decade · r² = 0.43 · 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
4.2 °C
9 January 2013
Wettest day
344 mm
12 August 1987
Windiest day
44.3 km/h
12 August 1987
Strongest gust
90.4 km/h
10 November 1995
Hottest feels-like
49.6 °C
12 August 2019
Coldest feels-like
0.3 °C
28 January 1964
Sunniest day
13.1 h
4 June 1986
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 | 22.6 °C | -0.8 °C | 0 mm | -14 mm |
| Feb | 27.1 °C | +0.3 °C | 2 mm | -12 mm |
| Mar | 32.5 °C | -0.1 °C | 7 mm | -11 mm |
| Apr | 34.0 °C | -2.3 °C | 124 mm | +87 mm |
| May | 34.5 °C | -1.6 °C | 81 mm | -1 mm |
| Jun | 35.5 °C | +1.5 °C | 136 mm | -117 mm |
| Jul | 34.8 °C | +3.0 °C | 174 mm | -240 mm |
| Aug | 32.7 °C | +1.0 °C | 418 mm | +78 mm |
| Sep | 33.3 °C | +1.9 °C | 230 mm | -40 mm |
| Oct | 31.3 °C | +0.8 °C | 275 mm | +194 mm |
| Nov | 29.1 °C | +0.7 °C | 1 mm | -7 mm |
| Dec | 23.4 °C | -1.6 °C | 0 mm | -5 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 Jainagar?
Jainagar has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 25.0 °C and it receives 1,536 mm of precipitation per year.
What is the hottest day ever recorded in Jainagar?
The hottest day measured in Jainagar between 1940 and 2025 was 26 May 1957, reaching 46.7 °C.
What is the coldest day in Jainagar?
The coldest day measured in Jainagar between 1940 and 2025 was 9 January 2013, at 4.2 °C.
Does it snow in Jainagar?
Almost never: Jainagar sees virtually no snow, with about 0 frost days per year.
Has the climate of Jainagar warmed?
Yes: Jainagar warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Jainagar?
The wettest day measured in Jainagar between 1940 and 2025 was 12 August 1987, with 344 mm of rain in 24 hours.
What was the windiest day in Jainagar?
The windiest day measured in Jainagar between 1940 and 2025 was 12 August 1987, with winds reaching 44.3 km/h.
What is the warmest month in Jainagar?
The warmest month in Jainagar is May (30.3 °C on average); the coldest is January (16.2 °C).
How much does it rain in Jainagar?
Jainagar receives on average 1,536 mm of precipitation per year, spread over about 140 rainy days.
Is it sunny in Jainagar?
Jainagar gets on average 10.0 hours of sunshine per day, roughly 3,650 hours per year over 1940-2025.
Are there tropical nights in Jainagar?
Yes: Jainagar has on average 213 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Jainagar?
In Jainagar, between 1940 and 2025, the highest apparent temperature reached 49.6 °C on 12 August 2019, and the lowest was 0.3 °C on 28 January 1964.
Compare Jainagar with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Jainagar