Maui

====Rainfall====
[[File:KahikinuiCoastlineMaui.JPG|thumb|right|Kahikinui coastline near [[Kaupo, Hawaii|Kaupo]]]]
[[File:Rainbow in Hawaii.jpg|thumb|left|[[Rainbow]] over the [[West Maui Mountains]] after rainfall in [[Kaanapali, Hawaii|Kā{{okina}}anapali]]]]

Showers are very common; while some of these are very heavy, the vast majority are light and brief. Even the heaviest rain showers are seldom accompanied by thunder and lightning. Throughout the lowlands in summer the dominance of the trade winds produce a drier season. At one extreme, the annual rainfall averages {{cvt|17|in|mm}} to {{cvt|20|in|mm}} or less in leeward coastal areas, such as the shoreline from [[Ma'alaea Bay|Maalaea Bay]] to Kaupo. At the other extreme, the annual average rainfall exceeds {{cvt|300|in|mm}} along the lower windward slopes of Haleakalā, particularly along the [[Hana Highway|Hāna Highway]]. [[Big Bog, Maui|Big Bog]], a spot on the edge of Haleakalā National Park overlooking Hana at about {{cvt|5,400|ft}} elevation had an estimated mean annual rainfall of {{cvt|404|in|mm}} over the 30-year period of 1978 to 2007.<ref>{{Cite news |first=Lee |last=Imada |title='Big Bog' ranks among wettest spots in Hawaii, possibly world |url=http://www.mauinews.com/page/content.detail/id/559332.html |archive-url=https://web.archive.org/web/20130611072538/http://www.mauinews.com/page/content.detail/id/559332.html |archive-date=11 June 2013 |url-status=dead |website=[[The Maui News]] |access-date=6 May 2020}}</ref> If the islands of Hawaii did not exist, the average annual rainfall on the same patch of water would be about {{cvt|25|in|mm}}.{{citation needed|date=November 2023}} Instead, the mountainous topography of Maui and the other islands induce an actual average of about {{cvt|70|in|mm}}.

{{climate chart
|Maui
|7|20|33
|6|19|31
|6|21|40
|5|22|11
|8|23|10
|9|21|4
|11|26|20
|11|28|3
|8|26|7
|8|22|36
|8|20|9
|6|20|12
|float=right
|clear=right
|source=<ref name="nasa">{{Cite web |url=http://neo.sci.gsfc.nasa.gov/dataset_index.php |title=NASA Earth Observations Data Set Index |access-date=30 January 2016 |publisher=NASA |archive-date=11 May 2020 |archive-url=https://web.archive.org/web/20200511075542/https://neo.sci.gsfc.nasa.gov/dataset_index.php |url-status=live }}</ref>
}}

In the lowlands, rainfall is most likely to occur throughout the year during the night or morning hours, and least likely in mid-afternoon. The most pronounced daily variations in rainfall occur during the summer because summer rainfall generally consists of trade winds showers that often occur at night. Winter rainfall in the lowlands is the result of storm activity, which is as likely to occur in the daytime as at night. Rainfall variability is far greater during the winter when occasional storms contribute appreciably to rainfall totals. With such wide swings in rainfall, there are inevitably occasional droughts, sometimes causing economic losses. These occur when winter rains fail to produce sufficient significant rainstorms, impacting normally dry areas outside the trade winds that depend on them the most. The winter of 2011–2012 produced extreme drought on the leeward sides of Moloka{{okina}}i, Maui, and the Island of Hawaii.