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Rainfall · Uttar Pradesh

Rainfall in Deoria

1,147 mmof rain in an average year, 2006–2025

Deoria gets 85% of its rain from the monsoon, June to September, and July is its wettest month. In 2025 it got 1,072 mm, 7% below average (normal).

Julywettest month, 332 mm on average
2008wettest year, 1,743 mm
2023driest year, 867 mm
6months a year with 50 mm of rain or more

Month-wise rainfall in Deoria

Average rain in each month, 2006–2025.

0100200300400JanJan: 9 mmFebFeb: 15 mmMarMar: 14 mmAprApr: 15 mmMayMay: 63 mmJunJun: 165 mmJulJul: 332 mmAugAug: 272 mmSepSep: 202 mmOctOct: 55 mmNovNov: 1 mmDecDec: 4 mm
MonthAverage rainShare of the year
January9 mm1%
February15 mm1%
March14 mm1%
April15 mm1%
May63 mm5%
June165 mm14%
July332 mm29%
August272 mm24%
September202 mm18%
October55 mm5%
November1 mm0%
December4 mm0%

Yearly rainfall in Deoria since 2006

Lighter bars are dry years, 20% or more below average (2015, 2023), when wells and borewells are drawn hardest. The last ten years averaged 5% less rain than the ten before.

050010001500200020062006: 1,037 mm2007: 1,368 mm2008: 1,743 mm20092009: 971 mm2010: 1,109 mm2011: 1,138 mm20122012: 1,038 mm2013: 1,386 mm2014: 1,127 mm20152015: 878 mm2016: 1,009 mm2017: 1,039 mm20182018: 926 mm2019: 1,162 mm2020: 1,409 mm20212021: 1,677 mm2022: 980 mm2023: 867 mm20242024: 1,011 mm2025: 1,072 mm- - average 1,147 mm

What Deoria'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 Deoria sheds about 97,495 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 year1,94,990 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 DeoriaGroundwater level in DeoriaPonds and lakes in Deoria

Frequently asked questions

What is the average annual rainfall in Deoria?

About 1,147 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 2008 (1,743 mm) and the driest was 2023 (867 mm).

Which month gets the most rain in Deoria?

July, with 332 mm in an average year, followed by August and September. November is the driest month (1 mm).

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

85% of a normal year's rain falls from June to September. 6 months average 50 mm or more.

How much did it rain in Deoria in 2025?

1,072 mm, which is 7% below the 2006–2025 average, or "normal" in the India Meteorological Department's terms.

Is rainfall in Deoria increasing or decreasing?

The last 10 years averaged 5% less rain than the 10 before them. Year-to-year swings are still bigger than that change.

How much rainwater can a house in Deoria harvest?

A 100 m² (about 1,076 sq ft) concrete roof in Deoria sheds about 97,495 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 Deoria 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