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Rainfall · Arunachal Pradesh

Rainfall in Papum Pare

2,576 mmof rain in an average year, 2006–2025

Papum Pare gets 69% of its rain from the monsoon, June to September, and July is its wettest month. In 2025 it got 2,864 mm, 11% above average (normal).

Julywettest month, 523 mm on average
2020wettest year, 3,384 mm
2006driest year, 2,125 mm
8months a year with 50 mm of rain or more

Month-wise rainfall in Papum Pare

Average rain in each month, 2006–2025.

0200400600JanJan: 15 mmFebFeb: 37 mmMarMar: 70 mmAprApr: 207 mmMayMay: 307 mmJunJun: 501 mmJulJul: 523 mmAugAug: 421 mmSepSep: 330 mmOctOct: 140 mmNovNov: 17 mmDecDec: 9 mm
MonthAverage rainShare of the year
January15 mm1%
February37 mm1%
March70 mm3%
April207 mm8%
May307 mm12%
June501 mm19%
July523 mm20%
August421 mm16%
September330 mm13%
October140 mm5%
November17 mm1%
December9 mm0%

Yearly rainfall in Papum Pare since 2006

Lighter bars are dry years, 20% or more below average, when wells and borewells are drawn hardest. The last ten years averaged 12% more rain than the ten before.

0100020003000400020062006: 2,125 mm2007: 2,676 mm2008: 2,422 mm20092009: 2,167 mm2010: 2,902 mm2011: 2,258 mm20122012: 2,539 mm2013: 2,223 mm2014: 2,288 mm20152015: 2,655 mm2016: 2,496 mm2017: 3,014 mm20182018: 2,420 mm2019: 2,678 mm2020: 3,384 mm20212021: 2,343 mm2022: 2,974 mm2023: 2,592 mm20242024: 2,494 mm2025: 2,864 mm- - average 2,576 mm

What Papum Pare'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 Papum Pare sheds about 2,18,960 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 year4,37,920 L≈ 44 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.

Frequently asked questions

What is the average annual rainfall in Papum Pare?

About 2,576 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 (3,384 mm) and the driest was 2006 (2,125 mm).

Which month gets the most rain in Papum Pare?

July, with 523 mm in an average year, followed by June and August. December is the driest month (9 mm).

How much of Papum Pare's rain falls in the monsoon?

69% of a normal year's rain falls from June to September. 8 months average 50 mm or more.

How much did it rain in Papum Pare in 2025?

2,864 mm, which is 11% above the 2006–2025 average, or "normal" in the India Meteorological Department's terms.

Is rainfall in Papum Pare increasing or decreasing?

The last 10 years averaged 12% more rain than the 10 before them. Year-to-year swings are still bigger than that change.

How much rainwater can a house in Papum Pare harvest?

A 100 m² (about 1,076 sq ft) concrete roof in Papum Pare sheds about 2,18,960 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 Papum Pare 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 Arunachal Pradesh