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# Weather Eye with John Maunder
- URL: https://goodoil.news/weather-eye-with-john-maunder-9/
- Published: 2021-06-12T01:15:00.000Z
- Updated: 2021-06-11T02:47:31.000Z
- Author: Guest Post
- Tags: NZ, NZ Climate change, #wp, #wp-post, #Import 2024-07-17 01:54

**John Maunder**  
[sunlive.co.nz](https://www.sunlive.co.nz/blogs/15715-may-rainfalls-tauranga18982021.html?ref=goodoil.news)

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Rainfalls for the month of May have been recorded in Tauranga since 1898 – except for 1904, 1907, 1908, and 1909.  
  
The graph shows the range of rainfalls from an extreme high of 634 mm in 2005 to a low of 13 mm in 2001\. The rainfall for May 2021 was 113 mm.

![](https://storage.ghost.io/c/31/f4/31f4e20a-0315-499e-83ff-139e8eab53bf/content/images/images/sunlive/210608-maunder-blog.jpg)

The second wettest May was 1950, when 311 mm was recorded, and the second driest May was in 1918, when only 24 mm fell. The long-term average rainfall for Tauranga for May is 124 mm.  
  
Apart from the exceptional rainfall of 634 mm in May 2005, the graph shows a small decrease in overall May rainfalls over the last 123 months.  
  
Since 1898, there have been 14 May months with a rainfall of 200 mm or more. In chronological order, the wettest May months are: 1899, 1900, 1917, 1925, 1926, 1928, 1949, 1950, 1956, 1961, 1962, 1971, 2005, and 2010.  
  
In terms of dry May months, there have been only nine May months with rainfall of less than 40 mm. In chronological order, the driest May months are: 1901, 1918, 1939, 1941, 1978, 1991, 1999, 2007, and 2014.  
  
Of particular significance is the exceptional rainfall in May 2005\. I estimated that such a rainfall is likely to occur in Tauranga only about twice in every 1000 years. This suggests central government could have had a much more important role in financial implications of the floods, which affected many areas of Tauranga in May 2005.

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[![](https://storage.ghost.io/c/31/f4/31f4e20a-0315-499e-83ff-139e8eab53bf/content/images/wp-content/uploads/2021/02/unnamed-1.jpg)](https://www.amazon.com/dp/B08NDR1GFD?ref%5F=pe%5F3052080%5F397514860&ref=goodoil.news)

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