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Rainfall · Chhattisgarh

Rainfall in Janjgir-Champa

1,346 mmof rain in an average year, 2006–2025

Janjgir-Champa gets 85% of its rain from the monsoon, June to September, and July is its wettest month. In 2025 it got 1,484 mm, 10% above average (normal).

Julywettest month, 368 mm on average
2020wettest year, 1,695 mm
2009driest year, 1,025 mm
5months a year with 50 mm of rain or more

Month-wise rainfall in Janjgir-Champa

Average rain in each month, 2006–2025.

0100200300400JanJan: 12 mmFebFeb: 18 mmMarMar: 21 mmAprApr: 26 mmMayMay: 46 mmJunJun: 186 mmJulJul: 368 mmAugAug: 339 mmSepSep: 250 mmOctOct: 57 mmNovNov: 10 mmDecDec: 13 mm
MonthAverage rainShare of the year
January12 mm1%
February18 mm1%
March21 mm2%
April26 mm2%
May46 mm3%
June186 mm14%
July368 mm27%
August339 mm25%
September250 mm19%
October57 mm4%
November10 mm1%
December13 mm1%

Yearly rainfall in Janjgir-Champa since 2006

Lighter bars are dry years, 20% or more below average (2009, 2018), when wells and borewells are drawn hardest. The last ten years averaged 9% more rain than the ten before.

050010001500200020062006: 1,116 mm2007: 1,371 mm2008: 1,229 mm20092009: 1,025 mm2010: 1,109 mm2011: 1,513 mm20122012: 1,448 mm2013: 1,667 mm2014: 1,324 mm20152015: 1,095 mm2016: 1,242 mm2017: 1,148 mm20182018: 1,068 mm2019: 1,507 mm2020: 1,695 mm20212021: 1,446 mm2022: 1,447 mm2023: 1,577 mm20242024: 1,412 mm2025: 1,484 mm- - average 1,346 mm

What Janjgir-Champa'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 Janjgir-Champa sheds about 1,14,410 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 year2,28,820 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 Janjgir-ChampaGroundwater level in Janjgir-ChampaWater quality in Janjgir-Champa

Frequently asked questions

What is the average annual rainfall in Janjgir-Champa?

About 1,346 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 2020 (1,695 mm) and the driest was 2009 (1,025 mm).

Which month gets the most rain in Janjgir-Champa?

July, with 368 mm in an average year, followed by August and September. November is the driest month (10 mm).

How much of Janjgir-Champa'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 Janjgir-Champa in 2025?

1,484 mm, which is 10% above the 2006–2025 average, or "normal" in the India Meteorological Department's terms.

Is rainfall in Janjgir-Champa 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 Janjgir-Champa harvest?

A 100 m² (about 1,076 sq ft) concrete roof in Janjgir-Champa sheds about 1,14,410 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 Janjgir-Champa 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