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Rainfall · Telangana

Rainfall in Khammam

1,108 mmof rain in an average year, 2006–2025

Khammam gets 70% of its rain from the monsoon, June to September, and July is its wettest month. In 2025 it got 1,264 mm, 14% above average (normal).

Julywettest month, 238 mm on average
2020wettest year, 1,611 mm
2014driest year, 725 mm
7months a year with 50 mm of rain or more

Month-wise rainfall in Khammam

Average rain in each month, 2006–2025.

0100200300JanJan: 5 mmFebFeb: 9 mmMarMar: 11 mmAprApr: 19 mmMayMay: 65 mmJunJun: 147 mmJulJul: 238 mmAugAug: 217 mmSepSep: 175 mmOctOct: 147 mmNovNov: 54 mmDecDec: 20 mm
MonthAverage rainShare of the year
January5 mm0%
February9 mm1%
March11 mm1%
April19 mm2%
May65 mm6%
June147 mm13%
July238 mm21%
August217 mm20%
September175 mm16%
October147 mm13%
November54 mm5%
December20 mm2%

Yearly rainfall in Khammam since 2006

Lighter bars are dry years, 20% or more below average (2009, 2011, 2014, 2015), when wells and borewells are drawn hardest. The last ten years averaged 8% more rain than the ten before.

050010001500200020062006: 1,319 mm2007: 1,068 mm2008: 1,163 mm20092009: 810 mm2010: 1,473 mm2011: 767 mm20122012: 1,197 mm2013: 1,325 mm2014: 725 mm20152015: 796 mm2016: 998 mm2017: 1,083 mm20182018: 976 mm2019: 968 mm2020: 1,611 mm20212021: 1,216 mm2022: 1,093 mm2023: 1,064 mm20242024: 1,253 mm2025: 1,264 mm- - average 1,108 mm

What Khammam'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 Khammam sheds about 94,180 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 year1,88,360 L≈ 19 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 KhammamGroundwater level in KhammamPonds and lakes in KhammamWater table depth in KhammamWater quality in Khammam

Frequently asked questions

What is the average annual rainfall in Khammam?

About 1,108 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 (1,611 mm) and the driest was 2014 (725 mm).

Which month gets the most rain in Khammam?

July, with 238 mm in an average year, followed by August and September. January is the driest month (5 mm).

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

70% of a normal year's rain falls from June to September. 7 months average 50 mm or more.

How much did it rain in Khammam in 2025?

1,264 mm, which is 14% above the 2006–2025 average, or "normal" in the India Meteorological Department's terms.

Is rainfall in Khammam increasing or decreasing?

The last 10 years averaged 8% more rain than the 10 before them. Year-to-year swings are still bigger than that change.

How much rainwater can a house in Khammam harvest?

A 100 m² (about 1,076 sq ft) concrete roof in Khammam sheds about 94,180 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 Khammam 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 Telangana