The IMD gridded rainfall data is available from 1901-2022
https://www.imdpune.gov.in/cmpg/Griddata/Rainfall_25_NetCDF.html
<https://mailtrack.io/trace/link/b238ccfa64f789701a1ca7af3b54a5e3e24d7dcd?url=https%3A%2F%2Fwww.imdpune.gov.in%2Fcmpg%2FGriddata%2FRainfall_25_NetCDF.html&userId=8747767&signature=ce9e45137af369df>

There's a python package 'imdlib' to read and convert this data to XArray.
I have used this in the past to process the data.
https://github.com/spatialthoughts/projects/blob/master/imd/imd_annual_average.ipynb
<https://mailtrack.io/trace/link/ac0912ca419d6e7594c567ca44e4d94d2efdf8a5?url=https%3A%2F%2Fgithub.com%2Fspatialthoughts%2Fprojects%2Fblob%2Fmaster%2Fimd%2Fimd_annual_average.ipynb&userId=8747767&signature=b02d82c756801e30>

You can use this to easily compute LPA and anomalies. Some sample code is
at
https://github.com/spatialthoughts/python-tutorials/blob/main/calculating_climate_anomaly.ipynb
<https://mailtrack.io/trace/link/cfd2a6f58798725326b3d4b471445867173296ea?url=https%3A%2F%2Fgithub.com%2Fspatialthoughts%2Fpython-tutorials%2Fblob%2Fmain%2Fcalculating_climate_anomaly.ipynb&userId=8747767&signature=7d2dc35e6a847df4>

I also have video tutorials and Earth Engine code for calculating LPA and
rainfall anomaly using CHIRPS data
https://www.youtube.com/watch?v=zHUCM3XLc6k&list=PLppGmFLhQ1HJ5VhW6BZfhPX6spUcTY7SR
<https://mailtrack.io/trace/link/ab43838fe825ee43d84e70966800a6e7c610213d?url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DzHUCM3XLc6k%26list%3DPLppGmFLhQ1HJ5VhW6BZfhPX6spUcTY7SR&userId=8747767&signature=e72aaae20e773a90>

---
Ujaval Gandhi
Spatial Thoughts
www.spatialthoughts.com
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On Tue, Jun 20, 2023 at 4:17 PM dimple behal <dimplebeh...@gmail.com> wrote:

> Hi Shijith,
> I’m also looking for the same. Let me know if you will be able to get
> something.
>
> On Tue, 20 Jun 2023 at 4:11 PM, Shijith Kunhitty <shijit...@gmail.com>
> wrote:
>
>> This Q. is for people who work with weather data. I'm trying to do
>> something related to the monsoon, but can't find what I'm looking for.
>>
>> Now monsoons are considered normal or not by comparing it with the
>> average  monsoon rainfall over a 50 year period 1971-2020, which is called
>> the long-period average (LPA).
>>
>> Tried looking for state-wise LPAs for 1971-2020 on the IMD website, but
>> couldn't find it.
>>
>> The closest I got was this image
>> <https://mausam.imd.gov.in/Rainfall/Normal_Rainfall_Maps/Monsoon/Monsoon_STATE_NORMAL_RAINFALLMAP_COUNTRY_INDIA_c.JPG>
>> from the IMD but it's for the period 1951-2000.
>>
>> If someone could give me some leads on where to find more recent
>> state-wise LPAs, I'd really appreciate it.
>>
>> -shijith
>>
>>
>>
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>> .
>>
> --
>
> If you have any other questions or need anything else, please feel free to
> write to me directly.
>
> Have a wonderful, and full of positive energy day!
> *Thank you and Regards,*
>
> *Dimple Behal*
> *Urban & Regional Planner*
> *Masters of Planning (Environmental Planning)*
> *School of Planning and Architecture, Bhopal.*
>
> *(An Institute of National Importance, MHRD, Government of India)*
> *Contact : +91-8288852144, **+91-8989958438*
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> <https://www.linkedin.com/in/dimplebehal4/>
>
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> .
>

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