Editing Hillsboro, Oregon (section)

===Climate===
Summers in Hillsboro are generally warm, but temperatures year-round are moderated by a marine influence from the Pacific Ocean.<ref name=climate>{{cite web |url=http://www.ocs.orst.edu/page_links/climate_data_zones/climate_oregon.html |title=The Climate of Oregon |last=Taylor |first=George |publisher=Oregon Climate Service |archive-url=https://web.archive.org/web/20071015033654/http://www.ocs.orst.edu/page_links/climate_data_zones/climate_oregon.html <!--Added by H3llBot--> |archive-date=October 15, 2007}}</ref> The [[Willamette Valley]] in which Hillsboro lies receives the majority of its [[Precipitation (meteorology)|precipitation]] during the winter months, with the wettest period from November through March.<ref name=climate/> This occasionally includes snowfall.<ref>{{cite book |last=Taylor |first=George H |author2=Hannan, Chris |year=1999 |title=The Climate of Oregon: From Rain Forest to Desert |location=Corvallis |publisher=Oregon State University Press |page=51 |isbn=0-87071-468-6}}</ref> Hillsboro receives precipitation on 161 days per year, on average.<ref name=usnews>{{cite journal |last=Go |first=Alison |date=October 1, 2007 |title=Best Places to Retire: Hillsboro, Oregon |journal=U.S. News & World Report |url=https://www.usnews.com/usnews/biztech/articles/070920/20retire.hillsboro.htm |url-status=dead |archive-url=https://web.archive.org/web/20071012014521/http://usnews.com/usnews/biztech/articles/070920/20retire.hillsboro.htm |archive-date=October 12, 2007}} Retrieved on November 24, 2008.</ref> The average yearly precipitation between 1930 and 1998 was {{cvt|38|in|mm}}.<ref>{{cite web |url=http://www.ocs.orst.edu/pub_ftp/climate_data/tpcp/tpcp3908.up |title=Hillsboro station daily precipitation |publisher=Oregon Climate Service |archive-url=https://web.archive.org/web/20071015160932/http://www.ocs.orst.edu/pub_ftp/climate_data/tpcp/tpcp3908.up |archive-date=October 15, 2007 |url-status=dead}}</ref> August is the warmest month with an average high temperature of {{cvt|81|°F|C|0|lk=on}}, while January is the coolest month with an average high of {{cvt|46|°F|C|0|}}.<ref name="WeatherChannel">{{cite web |title=Monthly Averages for Hillsboro, Oregon |url=http://www.weather.com/outlook/driving/interstate/wxclimatology/monthly/USOR0160 |access-date=March 5, 2009 |publisher=The Weather Channel Interactive, Inc |archive-date=June 29, 2014 |archive-url=https://web.archive.org/web/20140629093045/http://www.weather.com/outlook/driving/interstate/wxclimatology/monthly/USOR0160 |url-status=live }}</ref> The highest recorded temperature, {{cvt|114|°F|C|0|}}, occurred on June 28, 2021, and the lowest, {{cvt|-14|°F|C|0|}}, occurred in January 1930.<ref name="WeatherChannel"/>

Like the rest of the Willamette Valley, Hillsboro lies in the Marine West Coast climate zone, with Mediterranean characteristics.

{{Weather box
|location = Hillsboro, Oregon (1991–2020 normals, extremes 1929–present)
|single line = Y
| Jan record high F = 69
| Feb record high F = 70
| Mar record high F = 83
| Apr record high F = 90
| May record high F = 100
| Jun record high F = 114
| Jul record high F = 108
| Aug record high F = 107
| Sep record high F = 103
| Oct record high F = 92
| Nov record high F = 78
| Dec record high F = 64
| year record high F = 114
| Jan avg record high F = 57.2
| Feb avg record high F = 60.6
| Mar avg record high F = 69.5
| Apr avg record high F = 78.3
| May avg record high F = 86.6
| Jun avg record high F = 91.4
| Jul avg record high F = 96.9
| Aug avg record high F = 97.3
| Sep avg record high F = 92.4
| Oct avg record high F = 77.9
| Nov avg record high F = 63.5
| Dec avg record high F = 56.9
| year avg record high F = 99.9
| Jan high F = 47.3
| Feb high F = 51.0
| Mar high F = 55.9
| Apr high F = 60.9
| May high F = 68.7
| Jun high F = 73.5
| Jul high F = 82.1
| Aug high F = 82.4
| Sep high F = 76.4
| Oct high F = 63.7
| Nov high F = 52.6
| Dec high F = 46.2
| year high F = 63.4
| Jan mean F =40.4
| Feb mean F =42.3
| Mar mean F =46.2
| Apr mean F =50.1
| May mean F =56.7
| Jun mean F =61.0
| Jul mean F =67.2
| Aug mean F =67.1
| Sep mean F =62.0
| Oct mean F =52.3
| Nov mean F =44.6
| Dec mean F =39.8
| year mean F =52.5
| Jan low F = 33.6
| Feb low F = 33.5
| Mar low F = 36.5
| Apr low F = 39.2
| May low F = 44.7
| Jun low F = 48.6
| Jul low F = 52.2
| Aug low F = 51.8
| Sep low F = 47.5
| Oct low F = 40.9
| Nov low F = 36.5
| Dec low F = 33.3
| year low F = 41.5
| Jan avg record low F = 22.0
| Feb avg record low F = 23.9
| Mar avg record low F = 27.5
| Apr avg record low F = 31.2
| May avg record low F = 35.3
| Jun avg record low F = 40.4
| Jul avg record low F = 45.0
| Aug avg record low F = 44.3
| Sep avg record low F = 38.5
| Oct avg record low F = 30.4
| Nov avg record low F = 25.0
| Dec avg record low F = 21.4
| year avg record low F = 16.8
| Jan record low F = -14
| Feb record low F = -9
| Mar record low F = 18
| Apr record low F = 20
| May record low F = 26
| Jun record low F = 30
| Jul record low F = 36
| Aug record low F = 30
| Sep record low F = 29
| Oct record low F = 20
| Nov record low F = 8
| Dec record low F = -2
| year record low F = -14 
| precipitation colour = green
| Jan precipitation inch = 5.27
| Feb precipitation inch = 3.97
| Mar precipitation inch = 3.70
| Apr precipitation inch = 2.57
| May precipitation inch = 2.02
| Jun precipitation inch = 1.31
| Jul precipitation inch = 0.37
| Aug precipitation inch = 0.48
| Sep precipitation inch = 1.38
| Oct precipitation inch = 3.37
| Nov precipitation inch = 5.44
| Dec precipitation inch = 6.05
| year precipitation inch = 35.93
| Jan precipitation days = 19.3
| Feb precipitation days = 16.1
| Mar precipitation days = 18.4
| Apr precipitation days = 16.0
| May precipitation days = 12.0
| Jun precipitation days = 8.7
| Jul precipitation days = 2.9
| Aug precipitation days = 3.5
| Sep precipitation days = 7.6
| Oct precipitation days = 14.9
| Nov precipitation days = 19.4
| Dec precipitation days = 19.9
| Jan humidity =85
| Feb humidity =85
| Mar humidity =83
| Apr humidity =78
| May humidity =73
| Jun humidity =71
| Jul humidity =65
| Aug humidity =64
| Sep humidity =70
| Oct humidity =78
| Nov humidity =85
| Dec humidity =85
| year humidity =
| Jand sun =3.8
| Febd sun =3.7
| Mard sun =5.3
| Aprd sun =7.0
| Mayd sun =8.3
| Jund sun =8.9
| Juld sun =10.5
| Augd sun =10.6
| Sepd sun =8.9
| Octd sun =5.1
| Novd sun =4.3
| Decd sun =3.9
| yeard sun =
| Jan light = 9.2
| Feb light = 10.4
| Mar light = 12.0
| Apr light = 13.6
| May light = 14.9
| Jun light = 15.6
| Jul light = 15.3
| Aug light = 14.0
| Sep light = 12.5
| Oct light = 10.9
| Nov light = 9.5
| Dec light = 8.8
| year light= 
| Jan uv =2
| Feb uv =2
| Mar uv =3
| Apr uv =3
| May uv =4
| Jun uv =5
| Jul uv =6
| Aug uv =4
| Sep uv =4
| Oct uv =3
| Nov uv =2
| Dec uv =2
| year uv =
|source 1 = [[NOAA]]<ref>{{cite web |url=https://w2.weather.gov/climate/xmacis.php?wfo=pqr |title=NOWData Portland - Hillsboro Area |access-date=April 21, 2021 |archive-date=February 17, 2020 |archive-url=https://web.archive.org/web/20200217125347/https://w2.weather.gov/climate/xmacis.php?wfo=pqr |url-status=live }}</ref><ref>{{cite web |url=https://www.ncei.noaa.gov/access/services/data/v1?dataset=normals-monthly-1991-2020&stations=USW00094261&format=pdf&dataTypes=MLY-TMAX-NORMAL,MLY-TMIN-NORMAL,MLY-TAVG-NORMAL,MLY-PRCP-NORMAL,MLY-SNOW-NORMAL |publisher=National Oceanic and Atmospheric Administration |title=U.S. Climate Normals Quick Access – Station: Portland&ndash;Hillsboro AP, OR |access-date=December 30, 2022 |archive-date=December 30, 2022 |archive-url=https://web.archive.org/web/20221230174210/https://www.ncei.noaa.gov/access/services/data/v1?dataset=normals-monthly-1991-2020&stations=USW00094261&format=pdf&dataTypes=MLY-TMAX-NORMAL,MLY-TMIN-NORMAL,MLY-TAVG-NORMAL,MLY-PRCP-NORMAL,MLY-SNOW-NORMAL |url-status=live }}</ref>
|source 2 = Weather Atlas (UV and humidity)<ref>{{cite web |url=https://www.weather-atlas.com/en/oregon-usa/astoria-climate |title=Climate and monthly weather forecast Astoria, OR |access-date=August 16, 2022 |archive-date=August 16, 2022 |archive-url=https://web.archive.org/web/20220816085815/https://www.weather-atlas.com/en/oregon-usa/astoria-climate |url-status=live }}</ref>
}}