Areraj climate — normals and trends
Areraj (India) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 25.4 °C and it receives 1,323 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 (31.7 °C on average) and the coldest is January (16.2 °C). Rainfall peaks in July.
Areraj averages 0 frost days, 223 hot days (≥ 30 °C) and 126 rainy days per year.
Areraj 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 46.6 °C (on 26 May 1957) and the coldest 3.9 °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
ArerajBihar
- coords
- 26.55°, 84.68°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.4°C
Average daily high
31.1°C
Average daily low
20.7°C
Annual rainfall
1,323mm
Sunshine / day
10.0h
Mean relative humidity
67%
Average peak wind
14.9km/h
Seasonal range
15.5°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
223 d/yr
Rainy days (≥ 1 mm)
126 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.6 °C
Average feels-like low
22.4 °C
Average peak gust
30.0 km/h
Tropical nights (≥ 20 °C)
216 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 = 0.25 · 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
46.6 °C
26 May 1957
Coldest day
3.9 °C
9 January 2013
Wettest day
249 mm
16 June 1963
Windiest day
43.4 km/h
19 July 1975
Strongest gust
89.3 km/h
4 October 1968
Hottest feels-like
49.6 °C
11 June 1998
Coldest feels-like
1.1 °C
31 January 1964
Sunniest day
13.0 h
2 June 1958
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 | 21.4 °C | -1.6 °C | 0 mm | -18 mm |
| Feb | 26.8 °C | +0.2 °C | 0 mm | -19 mm |
| Mar | 32.5 °C | -0.2 °C | 7 mm | -12 mm |
| Apr | 35.2 °C | -2.1 °C | 58 mm | +34 mm |
| May | 35.9 °C | -1.9 °C | 65 mm | +12 mm |
| Jun | 36.4 °C | +0.7 °C | 147 mm | -49 mm |
| Jul | 34.6 °C | +2.3 °C | 170 mm | -192 mm |
| Aug | 32.9 °C | +0.9 °C | 503 mm | +198 mm |
| Sep | 33.1 °C | +1.5 °C | 281 mm | +42 mm |
| Oct | 31.1 °C | +0.3 °C | 240 mm | +169 mm |
| Nov | 28.6 °C | +0.1 °C | 5 mm | -4 mm |
| Dec | 22.3 °C | -2.4 °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 Areraj?
Areraj has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 25.4 °C and it receives 1,323 mm of precipitation per year.
What is the hottest day ever recorded in Areraj?
The hottest day measured in Areraj between 1940 and 2025 was 26 May 1957, reaching 46.6 °C.
What is the coldest day in Areraj?
The coldest day measured in Areraj between 1940 and 2025 was 9 January 2013, at 3.9 °C.
Does it snow in Areraj?
Almost never: Areraj sees virtually no snow, with about 0 frost days per year.
Has the climate of Areraj warmed?
Yes: Areraj warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Areraj?
The wettest day measured in Areraj between 1940 and 2025 was 16 June 1963, with 249 mm of rain in 24 hours.
What was the windiest day in Areraj?
The windiest day measured in Areraj between 1940 and 2025 was 19 July 1975, with winds reaching 43.4 km/h.
What is the warmest month in Areraj?
The warmest month in Areraj is May (31.7 °C on average); the coldest is January (16.2 °C).
How much does it rain in Areraj?
Areraj receives on average 1,323 mm of precipitation per year, spread over about 126 rainy days.
Is it sunny in Areraj?
Areraj gets on average 10.0 hours of sunshine per day, roughly 3,650 hours per year over 1940-2025.
Are there tropical nights in Areraj?
Yes: Areraj has on average 216 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Areraj?
In Areraj, between 1940 and 2025, the highest apparent temperature reached 49.6 °C on 11 June 1998, and the lowest was 1.1 °C on 31 January 1964.
Compare Areraj with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Areraj