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Rainfall · Uttar Pradesh

Rainfall in Prayagraj (Allahabad)

892 mmof rain in an average year, 2006–2025

Prayagraj gets 86% of its rain from the monsoon, June to September, and July is its wettest month. In 2025 it got 1,140 mm, 28% above average (excess).

Julywettest month, 268 mm on average
2013wettest year, 1,199 mm
2010driest year, 526 mm
4months a year with 50 mm of rain or more

Month-wise rainfall in Prayagraj

Average rain in each month, 2006–2025.

0100200300JanJan: 12 mmFebFeb: 15 mmMarMar: 13 mmAprApr: 10 mmMayMay: 23 mmJunJun: 117 mmJulJul: 268 mmAugAug: 228 mmSepSep: 156 mmOctOct: 42 mmNovNov: 3 mmDecDec: 6 mm
MonthAverage rainShare of the year
January12 mm1%
February15 mm2%
March13 mm1%
April10 mm1%
May23 mm3%
June117 mm13%
July268 mm30%
August228 mm26%
September156 mm17%
October42 mm5%
November3 mm0%
December6 mm1%

Yearly rainfall in Prayagraj since 2006

Lighter bars are dry years, 20% or more below average (2006, 2009, 2010, 2015), when wells and borewells are drawn hardest. The last ten years averaged 16% more rain than the ten before.

05001000150020062006: 564 mm2007: 752 mm2008: 1,113 mm20092009: 609 mm2010: 526 mm2011: 1,041 mm20122012: 1,047 mm2013: 1,199 mm2014: 723 mm20152015: 683 mm2016: 1,069 mm2017: 785 mm20182018: 794 mm2019: 1,110 mm2020: 1,033 mm20212021: 1,069 mm2022: 876 mm2023: 807 mm20242024: 908 mm2025: 1,140 mm- - average 892 mm

What Prayagraj'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 Prayagraj sheds about 75,820 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 year1,51,640 L≈ 15 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 PrayagrajGroundwater level in PrayagrajPonds and lakes in PrayagrajWater quality in Prayagraj

Frequently asked questions

What is the average annual rainfall in Prayagraj?

About 892 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 (1,199 mm) and the driest was 2010 (526 mm).

Which month gets the most rain in Prayagraj?

July, with 268 mm in an average year, followed by August and September. November is the driest month (3 mm).

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

86% of a normal year's rain falls from June to September. 4 months average 50 mm or more.

How much did it rain in Prayagraj in 2025?

1,140 mm, which is 28% above the 2006–2025 average, or "excess" in the India Meteorological Department's terms.

Is rainfall in Prayagraj increasing or decreasing?

The last 10 years averaged 16% more rain than the 10 before them. Year-to-year swings are still bigger than that change.

How much rainwater can a house in Prayagraj harvest?

A 100 m² (about 1,076 sq ft) concrete roof in Prayagraj sheds about 75,820 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 Prayagraj 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 Uttar Pradesh