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Rainfall · Chhattisgarh

Rainfall in Raigarh

1,361 mmof rain in an average year, 2006–2025

Raigarh gets 85% of its rain from the monsoon, June to September, and July is its wettest month. In 2025 it got 1,501 mm, 10% above average (normal).

Julywettest month, 372 mm on average
2013wettest year, 1,604 mm
2010driest year, 1,069 mm
5months a year with 50 mm of rain or more

Month-wise rainfall in Raigarh

Average rain in each month, 2006–2025.

0100200300400JanJan: 11 mmFebFeb: 16 mmMarMar: 21 mmAprApr: 24 mmMayMay: 43 mmJunJun: 183 mmJulJul: 372 mmAugAug: 361 mmSepSep: 245 mmOctOct: 61 mmNovNov: 9 mmDecDec: 12 mm
MonthAverage rainShare of the year
January11 mm1%
February16 mm1%
March21 mm2%
April24 mm2%
May43 mm3%
June183 mm13%
July372 mm27%
August361 mm27%
September245 mm18%
October61 mm4%
November9 mm1%
December12 mm1%

Yearly rainfall in Raigarh since 2006

Lighter bars are dry years, 20% or more below average (2010), when wells and borewells are drawn hardest.

050010001500200020062006: 1,184 mm2007: 1,322 mm2008: 1,547 mm20092009: 1,136 mm2010: 1,069 mm2011: 1,489 mm20122012: 1,577 mm2013: 1,604 mm2014: 1,350 mm20152015: 1,295 mm2016: 1,236 mm2017: 1,271 mm20182018: 1,137 mm2019: 1,452 mm2020: 1,599 mm20212021: 1,310 mm2022: 1,353 mm2023: 1,498 mm20242024: 1,289 mm2025: 1,501 mm- - average 1,361 mm

What Raigarh's rain is worth to a building

Every millimetre of rain on a square metre of roof is a litre of water. A 100 m² roof in Raigarh sheds about 1,15,685 litres in an average year, most of it in four monsoon months. Sent into a recharge pit, it refills the ground instead of flooding the street.

Your building: how much can you recharge?

Water you can put back each year2,31,370 L≈ 23 water tankers of 10,000 L

1 mm of rain on 1 m² is 1 litre. The surface factor allows for water lost to splash, evaporation and first-flush.

Rainwater harvesting cost in RaigarhGroundwater level in RaigarhWater quality in Raigarh

Frequently asked questions

What is the average annual rainfall in Raigarh?

About 1,361 mm a year, averaged over 2006–2025 from NASA POWER satellite and weather-model data for the centre of the district. The wettest year in that time was 2013 (1,604 mm) and the driest was 2010 (1,069 mm).

Which month gets the most rain in Raigarh?

July, with 372 mm in an average year, followed by August and September. November is the driest month (9 mm).

How much of Raigarh's rain falls in the monsoon?

85% of a normal year's rain falls from June to September. 5 months average 50 mm or more.

How much did it rain in Raigarh in 2025?

1,501 mm, which is 10% above the 2006–2025 average, or "normal" in the India Meteorological Department's terms.

Is rainfall in Raigarh increasing or decreasing?

It has held roughly steady: the last 10 years averaged within 5% of the 10 before them. Year-to-year swings are much bigger than the trend.

How much rainwater can a house in Raigarh harvest?

A 100 m² (about 1,076 sq ft) concrete roof in Raigarh sheds about 1,15,685 litres in an average year: area × rainfall × 0.85 for splash and evaporation. Sent into a recharge pit, that refills the ground under the house instead of running into the drain.

Rainfall from NASA POWER (bias-corrected satellite and weather-model rainfall) at the centre of Raigarh district. It reads close to, but not exactly the same as, India Meteorological Department rain-gauge totals, and rain varies within a district.

Rainfall in other districts of Chhattisgarh