Editing Hilo, Hawaii (section)

=== Climate ===
Hilo has a [[tropical rainforest climate]] ([[Köppen climate classification|Köppen]]: ''Af''), with substantial rainfall throughout the year. Its location on the [[Windward and leeward|windward]] coast (relative to the [[trade wind]]s), makes it the fourth-wettest city in the United States, behind the [[southeast Alaska]]n cities of [[Whittier, Alaska|Whittier]], [[Ketchikan, Alaska|Ketchikan]] and [[Yakutat, Alaska|Yakutat]], and one of the wettest in the world. An average of around {{convert|126.72|in|mm|sigfig=3}} of rain fell at Hilo International Airport annually between 1981 and 2010, with 272 days of the year receiving some rain.<ref name="NCDC txt PHTO"/> Rainfall in Hilo varies with altitude, with more at higher elevations. At some weather stations in upper Hilo the annual rainfall is above {{convert|200|in|mm}}.<ref>[http://www.prh.noaa.gov/hnl/climate/phto_clim.php Hilo, Hawai{{Okina}}i information] {{Webarchive|url=https://web.archive.org/web/20090115025122/http://www.prh.noaa.gov/hnl/climate/phto_clim.php |date=2009-01-15 }} on [[NOAA]] web site</ref>

Monthly mean temperatures range from {{convert|71.2|°F|1}} in February to {{convert|76.4|°F|1}} in August.<ref name="NCDC txt PHTO"/> The highest recorded temperature was {{convert|94|°F|0}} on May 20, 1996, and the lowest {{convert|53|°F|0}} on February 21, 1962.<ref name = NOAA/> The wettest year was 1994 with {{convert|182.81|in|mm|1}}, and the driest was 1983, with {{convert|68.09|in|mm|1}}. The most rainfall in one month was {{convert|50.82|in|mm|1}} in December 1954. The most rainfall in 24 hours was {{convert|27.24|in|mm|1}} on November 2, 2000.<ref>[http://www.ncdc.noaa.gov/oa/climate/extremes/2000/november/extremes1100.html Record 24-hour rainfall] {{Webarchive|url=https://web.archive.org/web/20090509034118/http://www.ncdc.noaa.gov/oa/climate/extremes/2000/november/extremes1100.html |date=2009-05-09 }} on [[NOAA]] web site</ref>

Hilo's location on the shore of the funnel-shaped [[Hilo Bay]] also makes it vulnerable to [[tsunami]]s.<ref>{{cite web |title=Where is Hilo Hawai'i? |work=Frequently Asked Questions |url=http://www.tsunami.org/faq.html |access-date=2009-07-23 |publisher=The [[Pacific Tsunami Museum]] web site |url-status=dead |archive-url=https://web.archive.org/web/20090528094603/http://www.tsunami.org/faq.html |archive-date=2009-05-28 }}</ref>

{{Weather box
|location = [[Hilo International Airport]], Hawaii (1991–2020 normals,{{efn|Mean monthly maxima and minima (i.e. the expected highest and lowest temperature readings at any point during the year or given month) calculated based on data at said location from 1991 to 2020.}} extremes 1949–present)
|single line = Y 
|Jan record high F = 92
|Feb record high F = 92
|Mar record high F = 93
|Apr record high F = 89
|May record high F = 94
|Jun record high F = 90
|Jul record high F = 93
|Aug record high F = 93
|Sep record high F = 93
|Oct record high F = 91
|Nov record high F = 94
|Dec record high F = 93
|year record high F = 94
|Jan avg record high F = 85.2
|Feb avg record high F = 84.8
|Mar avg record high F = 85.0
|Apr avg record high F = 84.1
|May avg record high F = 85.4
|Jun avg record high F = 85.7
|Jul avg record high F = 87.1
|Aug avg record high F = 87.2
|Sep avg record high F = 87.7
|Oct avg record high F = 87.4
|Nov avg record high F = 85.9
|Dec avg record high F = 84.2
|year avg record high F = 89.6
|Jan high F = 78.7
|Feb high F = 78.4
|Mar high F = 78.5
|Apr high F = 79.0
|May high F = 80.7
|Jun high F = 81.8
|Jul high F = 82.8
|Aug high F = 82.9
|Sep high F = 83.3
|Oct high F = 82.4
|Nov high F = 80.3
|Dec high F = 78.8
|year high F = 80.6
|Jan mean F = 71.4
|Feb mean F = 71.2
|Mar mean F = 71.9
|Apr mean F = 72.5
|May mean F = 74.0
|Jun mean F = 75.2
|Jul mean F = 76.3
|Aug mean F = 76.6
|Sep mean F = 76.5
|Oct mean F = 75.7
|Nov mean F = 74.0
|Dec mean F = 72.2
|year mean F = 74.0
|Jan low F = 64.1
|Feb low F = 64.1
|Mar low F = 65.2
|Apr low F = 66.1
|May low F = 67.3
|Jun low F = 68.7
|Jul low F = 69.9
|Aug low F = 70.4
|Sep low F = 69.8
|Oct low F = 69.0
|Nov low F = 67.6
|Dec low F = 65.7
|year low F = 67.3
|Jan avg record low F = 59.3
|Feb avg record low F = 59.1
|Mar avg record low F = 61.1
|Apr avg record low F = 62.4
|May avg record low F = 63.6
|Jun avg record low F = 65.2
|Jul avg record low F = 66.1
|Aug avg record low F = 66.7
|Sep avg record low F = 66.1
|Oct avg record low F = 65.2
|Nov avg record low F = 63.4
|Dec avg record low F = 61.3
|year avg record low F = 58.2
|Jan record low F = 54
|Feb record low F = 53
|Mar record low F = 54
|Apr record low F = 58
|May record low F = 58
|Jun record low F = 61
|Jul record low F = 62
|Aug record low F = 63
|Sep record low F = 61
|Oct record low F = 62
|Nov record low F = 58
|Dec record low F = 55
|year record low F = 53
|precipitation colour = green
|Jan precipitation inch = 7.86
|Feb precipitation inch = 10.22
|Mar precipitation inch = 12.68
|Apr precipitation inch = 9.40
|May precipitation inch = 6.99
|Jun precipitation inch = 7.30
|Jul precipitation inch = 9.24
|Aug precipitation inch = 11.30
|Sep precipitation inch = 8.70
|Oct precipitation inch = 10.24
|Nov precipitation inch = 14.39
|Dec precipitation inch = 12.07
|year precipitation inch = 120.39
|unit precipitation days = 0.01 in
|Jan precipitation days = 15.7
|Feb precipitation days = 16.6
|Mar precipitation days = 21.8
|Apr precipitation days = 24.5
|May precipitation days = 22.9
|Jun precipitation days = 25.4
|Jul precipitation days = 26.6
|Aug precipitation days = 27.2
|Sep precipitation days = 23.3
|Oct precipitation days = 23.4
|Nov precipitation days = 23.3
|Dec precipitation days = 22.3
|year precipitation days = 273.0
|Jan humidity = 76.6
|Feb humidity = 76.0
|Mar humidity = 78.1
|Apr humidity = 80.2
|May humidity = 78.9
|Jun humidity = 77.4
|Jul humidity = 79.5
|Aug humidity = 79.5
|Sep humidity = 79.2
|Oct humidity = 80.0
|Nov humidity = 80.3
|Dec humidity = 78.7
|year humidity = 78.7
|Jan sun = 161.0
|Feb sun = 152.0
|Mar sun = 152.7
|Apr sun = 135.9
|May sun = 155.0
|Jun sun = 176.9
|Jul sun = 167.2
|Aug sun = 174.9
|Sep sun = 161.5
|Oct sun = 136.3
|Nov sun = 115.0
|Dec sun = 129.0
|year sun = 1817.4
|Jan percentsun = 47
|Feb percentsun = 47
|Mar percentsun = 41
|Apr percentsun = 36
|May percentsun = 38
|Jun percentsun = 44
|Jul percentsun = 41
|Aug percentsun = 44
|Sep percentsun = 44
|Oct percentsun = 38
|Nov percentsun = 34
|Dec percentsun = 38
|year percentsun = 41
|Jan dew point C = 17.1
|Feb dew point C = 16.9
|Mar dew point C = 17.6
|Apr dew point C = 18.4
|May dew point C = 18.9
|Jun dew point C = 19.3
|Jul dew point C = 20.1
|Aug dew point C = 20.3
|Sep dew point C = 20.2
|Oct dew point C = 20.0
|Nov dew point C = 19.2
|Dec dew point C = 17.9
|year dew point F = 
|source 1 =  [[NOAA]] (relative humidity, dew points and sun 1961−1990)<ref name= NOAA>{{cite web
|url = https://www.weather.gov/wrh/Climate?wfo=hfo
|title = NowData – NOAA Online Weather Data
|publisher = National Oceanic and Atmospheric Administration
|access-date = September 11, 2021}}</ref><ref name="NCDC txt PHTO">
{{cite web
|url = https://www.ncei.noaa.gov/access/services/data/v1?dataset=normals-monthly-1991-2020&startDate=0001-01-01&endDate=9996-12-31&stations=USW00021504&format=pdf
|title = Station: Hilo INTL AP, HI
|work = U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991–2020)
|publisher = National Oceanic and Atmospheric Administration
|access-date = September 11, 2021
|archive-url = https://web.archive.org/web/20230618041052/https://www.ncei.noaa.gov/access/services/data/v1?dataset=normals-monthly-1991-2020&startDate=0001-01-01&endDate=9996-12-31&stations=USW00021504&format=pdf
|archive-date = 2023-06-18}}</ref><ref name="WMO 1961–90 PHTO">
{{cite web 
|url = https://www.ncei.noaa.gov/pub/data/normals/WMO/1961-1990/TABLES/REG__V/U1/91285.TXT
|title = WMO climate normals for Hilo/WSO AP 87, HI 1961−1990 
|publisher = [[National Oceanic and Atmospheric Administration]] 
|access-date = 29 April 2015
|archive-url = https://web.archive.org/web/20230618040412/https://www.ncei.noaa.gov/pub/data/normals/WMO/1961-1990/TABLES/REG__V/U1/91285.TXT
|archive-date=2023-06-18}}</ref>
}}
{{Graph:Weather monthly history
| table=Ncei.noaa.gov/weather/Hilo, Hawaii.tab
| title=Hilo monthly weather statistics
}}