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Rainfall · Chhattisgarh

Rainfall in Korba

1,323 mmof rain in an average year, 2006–2025

Korba gets 83% of its rain from the monsoon, June to September, and July is its wettest month. In 2025 it got 1,472 mm, 11% above average (normal).

Julywettest month, 344 mm on average
2013wettest year, 1,692 mm
2009driest year, 954 mm
5months a year with 50 mm of rain or more

Month-wise rainfall in Korba

Average rain in each month, 2006–2025.

0100200300400JanJan: 15 mmFebFeb: 20 mmMarMar: 25 mmAprApr: 28 mmMayMay: 47 mmJunJun: 181 mmJulJul: 344 mmAugAug: 339 mmSepSep: 239 mmOctOct: 64 mmNovNov: 9 mmDecDec: 12 mm
MonthAverage rainShare of the year
January15 mm1%
February20 mm2%
March25 mm2%
April28 mm2%
May47 mm4%
June181 mm14%
July344 mm26%
August339 mm26%
September239 mm18%
October64 mm5%
November9 mm1%
December12 mm1%

Yearly rainfall in Korba since 2006

Lighter bars are dry years, 20% or more below average (2009, 2010), when wells and borewells are drawn hardest. The last ten years averaged 9% more rain than the ten before.

050010001500200020062006: 1,094 mm2007: 1,312 mm2008: 1,279 mm20092009: 954 mm2010: 1,047 mm2011: 1,485 mm20122012: 1,331 mm2013: 1,692 mm2014: 1,358 mm20152015: 1,111 mm2016: 1,281 mm2017: 1,185 mm20182018: 1,059 mm2019: 1,465 mm2020: 1,579 mm20212021: 1,376 mm2022: 1,464 mm2023: 1,499 mm20242024: 1,415 mm2025: 1,472 mm- - average 1,323 mm

What Korba'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 Korba sheds about 1,12,455 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 year2,24,910 L≈ 22 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 KorbaGroundwater level in KorbaPonds and lakes in KorbaWater quality in Korba

Frequently asked questions

What is the average annual rainfall in Korba?

About 1,323 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 (1,692 mm) and the driest was 2009 (954 mm).

Which month gets the most rain in Korba?

July, with 344 mm in an average year, followed by August and September. November is the driest month (9 mm).

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

83% of a normal year's rain falls from June to September. 5 months average 50 mm or more.

How much did it rain in Korba in 2025?

1,472 mm, which is 11% above the 2006–2025 average, or "normal" in the India Meteorological Department's terms.

Is rainfall in Korba increasing or decreasing?

The last 10 years averaged 9% more rain than the 10 before them. Year-to-year swings are still bigger than that change.

How much rainwater can a house in Korba harvest?

A 100 m² (about 1,076 sq ft) concrete roof in Korba sheds about 1,12,455 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 Korba 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