Pre-monsoon Toppers, Records, Rainfall Analysis in May Month in Kanyakumari and Kerala

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It has been one awesome hot weather season for Kerala and Kanyakumari. Lets see some of the stats from one of the wettest season. Some of the data courtesy to West coast weatherman.
1. Top Kerala Pre-monsoon rainfall (Mar-May)
1933 – 915.2
1960 – 791
1932 – 788
1918 – 767
2004 – 758.4
2021 – 750.9 (6th Wettest)
Normal for Mar to May for Kerala – 361.5
Now a basic question comes, though it does not make sense logically or technically. Lets see if massive Pre-monsoon rains have any co-relation with SW Monsoon (Jun -Sept) rainfall
1933- Excess
1960- Normal
1932 – Below normal
1918 – Flop
2004 – Below normal
2021 – Below normal predicted by Official Agency. But with Kerala monsoon, i dont think it is so easy to predict monsoon months ahead. Eg. 2020 September was wettest in 150 years. From 2018, it has been breaking records one month or another. And August and September looks very good indeed even this year too.

 

2. Top May month rainfall for Kerala

1933 – 738
1918 –  683
1932 – 646
2004 – 604
2021 – 569 (5th Wettest)

For the May month, it has been 5th wettest in 120 years for Kerala, the last time kerala got massive rains in May month was also during cyclone in 2004.  All the Top months for Kerala had a cyclone in Arabian sea. The 1933 cyclone, 1932 cyclones, 2004 cyclone and 2021 Tauktae.

3. Top Kanyakumari district Premonsoon rainfall (Mar-May)

1933 – 863.1
2021 – 639.1 (2nd Wettest)
1932 – 591.6
1959 – 540.8
1960 – 527.4
1995 – 508.2
Normal for Kanyakumari in Mar to May – 273.4 mm.
Thanks to Cyclone Taukate which pulled the moist cross equatorial winds, it has been 2nd wettest ever pre-monsoon for Kanyakumari.
4. Top May month Kanyakumari district rainfall

1933 – 715.9
2021 – 527.6 (5th Wettest)
1932 – 436.5
1959 – 383.6
1960 – 366.1
1918 – 354.9

2021 ends as 2nd best Pre-monsoon rainfall for Kanyakumari district and again like kerala, the rainfall in 1993, 2021, 1932, 1959, 1960 and 1995 all had cyclones.

 

5. Premonsoon (March to May) Toppers in Tamil Nadu

in mm (550 mm)

  1. Perunchani Dam, Kanyakumari – 1061
  2. Puthan Dam, Kanyakumari – 1030
  3. Chittar II Dam, Kanyakumari – 1030
  4. Upper Kodayar, Kanyakumari – 1027
  5. Chittar I Dam, Kanyakumari – 992
  6. Pechiparai Dam, Kanyakumari – 976
  7. Kuzhithurai, Kanyakumari – 966
  8. Suralacode, Kanyakumari – 867
  9. Eraniel, Kanyakumari – 862
  10. Lower Kodayar, Kanyakumari – 838
  11. Mylaudy, Kanyakumari – 793
  12. Nagercoil, Kanyakumari – 702
  13. Kalial, Kanyakumari – 699
  14. Sholayar Dam, Coimbatore – 665
  15. Periyakallar (Valparai PTO), Coimbatore – 664
  16. Chinnakallar, Coimbatore – 648
  17. Valparai PAP, Coimbatore –  59 2
  18. Periyar Dam, Theni – 571
  19. Cincona, Coimbatore – 567
  20. Thuckalay, Kanyakumari –  566
  21. Valparai Taluk Office, Coimbatore – 558

The toppers were dominated by Kanyakumari stations.

 

6. Premonsoon (March to May) Toppers in Kerala

in mm (1000 mm)

  1. Kottarakkara, Kollam – 1979
  2. Pathanamthitta, Pathanamthitta – 1561
  3. Konni, Pathanamthitta – 1461
  4. Punalur, Kollam – 1370
  5. Kanjirapally, Kottayam – 1334
  6. Neyyar Dam, Trivandrum – 1279
  7. Moozhiyar, Pathanamthitta  – 1225
  8. Aryanad, Trivandrum – 1219
  9. Vamanapuram, Trivandrum – 1204
  10. Konni Estate, Pathanamthitta – 1201
  11. Ponmudi, Trivandrum – 1200
  12. Mundakayam, Idukki – 1193
  13. Keerampara, Ernakulam – 1187
  14. Kollakadavu, Pathanamthitta – 1137
  15. Kurudamannil, Pathanamthitta – 1122
  16. Erattupetta, Kottayam – 1118
  17. Perumthenaruvi, Pathanamthitta – 1092
  18. Bhoothathankettu, Ernakulam – 1081
  19. Kakki Dam, Pathanamthitta – 1072
  20. Kottayam, Kottayam – 1047
  21. Boyce Estate, Idukki – 1041
  22. Kakkayam, Kozhikode – 1038
  23. Alapuzha, Alapuzha – 1018
  24. Pulingome, Kannur – 1000
The southern Kerala districts has dominated the premonsoon season.

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