Editing Astoria, Oregon (section)

===Climate===
Astoria lies within the [[Mediterranean climate]] zone ([[Köppen climate classification|Köppen]] ''Csb''), with cool winters and mild summers, although short heat waves can occur. Rainfall is most abundant in late fall and winter and is lightest in July and August, averaging about {{convert|67|in|mm}} of rain each year.<ref name="climate">{{cite web|title=Climate of Clatsop County |url=http://www.ocs.oregonstate.edu/county_climate/Clatsop_files/Clatsop.html |publisher=Oregon State University |access-date=April 22, 2016 |url-status=dead |archive-url=https://web.archive.org/web/20160730095449/http://www.ocs.oregonstate.edu/county_climate/Clatsop_files/Clatsop.html |archive-date=July 30, 2016}}</ref> Snowfall is relatively rare, averaging under {{convert|5|in|cm}} a year and frequently having none.<ref>{{Cite web |date=2002 |title=not found |url=https://www.ncei.noaa.gov/pub/data/lcd/annual/2002/2002AST.pdf |access-date=January 9, 2025 |website=www.ncei.noaa.gov}}</ref> Nevertheless, when conditions are ripe, significant snowfalls can occur.

Astoria's monthly average humidity is always over 80% throughout the year, with average monthly humidity reaching a high of 84% from November to March, with a low of 81% during May.<ref>{{Cite web |last=Aladin |title=Astoria, OR - Climate & Monthly weather forecast |url=https://www.weather-us.com/en/oregon-usa/astoria-climate |access-date=2023-01-25 |website=Weather U.S. |language=en}}</ref> The average relative humidity in Astoria is 89% in the morning and 73% in the afternoon.<ref>{{cite web | title = Average Relative Humidity – Morning (M), Afternoon (A) | work = Comparative Climatic Data for the United States Through 2012 | publisher = National Oceanic and Atmospheric Administration | year = 2013 | url = http://www1.ncdc.noaa.gov/pub/data/ccd-data/CCD-2012.pdf | url-status = dead | archive-url = https://web.archive.org/web/20140718012823/http://www1.ncdc.noaa.gov/pub/data/ccd-data/CCD-2012.pdf | archive-date = July 18, 2014}}</ref>

[[File:Astoria city view.jpg|thumb|Astoria city view]]

Annually, an average of only 4.2 afternoons have temperatures reaching {{convert|80|°F|1}} or higher, and {{convert|90|°F|1|disp=or}} readings are rare. Normally, only one or two nights per year occur when the temperature remains at or above {{convert|60|°F|1|disp=or}}.<ref>{{cite web
| url = ftp://ftp.ncdc.noaa.gov/pub/data/normals/1981-2010/products/station/USW00094224.normals.txt
| title = Station Name: OR ASTORIA RGNL AP
| publisher = National Oceanic and Atmospheric Administration
| access-date = June 13, 2013}}</ref> An average of 31 mornings have minimum temperatures at or below the freezing mark. The record high temperature was {{convert|101|°F|1}} on July 1, 1942, and June 27, 2021. The record low temperature was {{convert|6|°F|1}} on December 8, 1972, and on December 21, 1990. Even with such a cold record low, afternoons usually remain mild in winter. On average, the coldest daytime high is {{convert|36|F|C}} whereas the lowest daytime maximum on record is {{convert|19|F|C}}.<ref name = NCDC /> Even during brief heat spikes, nights remain cool. The warmest overnight low is {{convert|63|F|C}} set  in May  2008.<ref name = NCDC /> Nights close to that record are common with the normally warmest night of the year being at {{convert|61|F|C}}.<ref name = NCDC />

On average, 191 days have measurable precipitation. The wettest "water year", defined as October 1 through September 30 of the next year, was from 1915 to 1916 with {{convert|108.04|in|mm|abbr=on}} and the driest from 2000 to 2001 with {{convert|44.50|in|mm|abbr=on}}. The most rainfall in one month was {{convert|36.07|in|mm|1}} in December 1933, and the most in 24 hours was {{convert|5.56|in|mm|1}} on November 25, 1998.<ref name = NCDC /> The most snowfall in one month was {{convert|26.9|in|cm|abbr=on}} in January 1950,<ref>{{cite web|url=http://www.wrcc.dri.edu/cgi-bin/cliMAIN.pl?or0324|title=Astoria, Oregon (350324)|publisher=Western Regional Climate Center|access-date=December 31, 2013}}</ref><ref>{{cite web|url=http://www.wrcc.dri.edu/cgi-bin/cliMAIN.pl?or0328|title=Astoria WSO Airport, Oregon (350328)|publisher=Western Regional Climate Center|access-date=December 31, 2013}}</ref> and the most snow in 24 hours was {{convert|12.5|in|cm|abbr=on}} on December 11, 1922.<ref name = NCDC />

{{Weather box 
|collapsed = 
|location = [[Astoria Regional Airport]] (1991–2020 normals,{{efn|Mean monthly maxima and minima (i.e. the highest and lowest temperature readings during an entire month or year) calculated based on data at said location from 1991 to 2020.}} extremes 1892–present)
|single line = Y
|Jan record high F = 70
|Feb record high F = 72
|Mar record high F = 80
|Apr record high F = 85
|May record high F = 93
|Jun record high F = 101
|Jul record high F = 101
|Aug record high F = 98
|Sep record high F = 95
|Oct record high F = 85
|Nov record high F = 73
|Dec record high F = 64
|year record high F = 101
|Jan avg record high F = 58.9
|Feb avg record high F = 61.4
|Mar avg record high F = 65.5
|Apr avg record high F = 71.9
|May avg record high F = 77.8
|Jun avg record high F = 79.1
|Jul avg record high F = 81.7
|Aug avg record high F = 83.7
|Sep avg record high F = 81.9
|Oct avg record high F = 74.1
|Nov avg record high F = 62.8
|Dec avg record high F = 57.9
|year avg record high F = 89.4
|Jan high F = 49.4
|Feb high F = 50.9
|Mar high F = 53.0
|Apr high F = 55.9
|May high F = 60.5
|Jun high F = 64.0
|Jul high F = 67.4
|Aug high F = 68.7
|Sep high F = 67.6
|Oct high F = 60.7
|Nov high F = 53.6
|Dec high F = 48.7
|year high F = 58.4
|Jan mean F = 43.7
|Feb mean F = 44.2
|Mar mean F = 46.0
|Apr mean F = 48.7
|May mean F = 53.4
|Jun mean F = 57.3
|Jul mean F = 60.6
|Aug mean F = 61.3
|Sep mean F = 59.0
|Oct mean F = 52.8
|Nov mean F = 46.9
|Dec mean F = 43.2
|year mean F = 51.4
|Jan low F = 38.1
|Feb low F = 37.4
|Mar low F = 39.0
|Apr low F = 41.5
|May low F = 46.3
|Jun low F = 50.6
|Jul low F = 53.9
|Aug low F = 53.9
|Sep low F = 50.5
|Oct low F = 44.9
|Nov low F = 40.2
|Dec low F = 37.6
|year low F = 44.5
|Jan avg record low F = 27.2
|Feb avg record low F = 26.7
|Mar avg record low F = 29.6
|Apr avg record low F = 33.3
|May avg record low F = 37.6
|Jun avg record low F = 43.0
|Jul avg record low F = 46.9
|Aug avg record low F = 46.7
|Sep avg record low F = 41.8
|Oct avg record low F = 34.1
|Nov avg record low F = 29.3
|Dec avg record low F = 26.8
|year avg record low F = 22.6
|Jan record low F = 11
|Feb record low F = 9
|Mar record low F = 22
|Apr record low F = 26
|May record low F = 30
|Jun record low F = 37
|Jul record low F = 37
|Aug record low F = 39
|Sep record low F = 33
|Oct record low F = 26
|Nov record low F = 15
|Dec record low F =  6
|precipitation colour = green
|Jan precipitation inch = 10.59
|Feb precipitation inch = 7.18
|Mar precipitation inch = 7.90
|Apr precipitation inch = 5.80
|May precipitation inch = 3.40
|Jun precipitation inch = 2.30
|Jul precipitation inch = 0.83
|Aug precipitation inch = 1.12
|Sep precipitation inch = 2.67
|Oct precipitation inch = 6.74
|Nov precipitation inch = 11.05
|Dec precipitation inch = 10.68
|year precipitation inch = 70.26
|Jan snow inch = 0.4
|Feb snow inch = 0.5
|Mar snow inch = 0.0
|Apr snow inch = 0.0
|May snow inch = 0.0
|Jun snow inch = 0.0
|Jul snow inch = 0.0
|Aug snow inch = 0.0
|Sep snow inch = 0.0
|Oct snow inch = 0.0
|Nov snow inch = 0.3
|Dec snow inch = 0.2
|year snow inch = 1.4
|unit precipitation days = 0.01 in
|Jan precipitation days = 21.6
|Feb precipitation days = 18.8
|Mar precipitation days = 21.5
|Apr precipitation days = 19.2
|May precipitation days = 15.5
|Jun precipitation days = 13.7
|Jul precipitation days = 8.1
|Aug precipitation days = 7.7
|Sep precipitation days = 10.1
|Oct precipitation days = 16.6
|Nov precipitation days = 21.1
|Dec precipitation days = 22.0
|year precipitation days = 195.9
|unit snow days = 0.1 in
|Jul snow days = 0.0
|Aug snow days = 0.0
|Sep snow days = 0.0
|Oct snow days = 0.0
|Nov snow days = 0.1
|Dec snow days = 0.3
|Jan snow days = 0.6
|Feb snow days = 0.7
|Mar snow days = 0.0
|Apr snow days = 0.0
|May snow days = 0.0
|Jun snow days = 0.0
|year snow days = 1.7
|Jan humidity = 82.7
|Feb humidity = 82.2
|Mar humidity = 80.9
|Apr humidity = 79.5
|May humidity = 79.5
|Jun humidity = 79.8
|Jul humidity = 79.8
|Aug humidity = 81.6
|Sep humidity = 81.1
|Oct humidity = 82.9
|Nov humidity = 83.3
|Dec humidity = 84.0
|year humidity = 81.4
|Jan dew point C = 2.6
|Feb dew point C = 3.7
|Mar dew point C = 4.1
|Apr dew point C = 5.2
|May dew point C = 7.7
|Jun dew point C = 10.1
|Jul dew point C = 11.7
|Aug dew point C = 12.3
|Sep dew point C = 11.0
|Oct dew point C = 8.4
|Nov dew point C = 5.5
|Dec dew point C = 3.2
|source 1 = [[NOAA]] (relative humidity and dew point 1961–1990, snowfall & snow days 1981–2010)<ref name= NCDC >{{cite web
|url = https://www.weather.gov/wrh/climate?wfo=pqr
|title = NOWData – NOAA Online Weather Data
|publisher= National Oceanic and Atmospheric Administration
|access-date= 2018-04-18
}}</ref><ref>
{{cite web
|url = https://www.ncei.noaa.gov/access/services/data/v1?dataset=normals-monthly-1991-2020&stations=USW00094224&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: Astoria RGNL AP, OR (1991&ndash;2020)
|access-date = December 30, 2022
|archive-url = https://web.archive.org/web/20230906224959/https://www.ncei.noaa.gov/access/services/data/v1?dataset=normals-monthly-1991-2020&stations=USW00094224&format=pdf&dataTypes=MLY-TMAX-NORMAL,MLY-TMIN-NORMAL,MLY-TAVG-NORMAL,MLY-PRCP-NORMAL,MLY-SNOW-NORMAL
|archive-date = 2023-09-06
}}
</ref><ref>
{{cite web
|url = https://www.ncei.noaa.gov/access/services/data/v1?dataset=normals-monthly&stations=USW00094224&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: Astoria Regional Airport, OR (1981&ndash;2010)
|access-date = December 30, 2022
|archive-url = https://web.archive.org/web/20230906225009/https://www.ncei.noaa.gov/access/services/data/v1?dataset=normals-monthly&stations=USW00094224&format=pdf&dataTypes=MLY-TMAX-NORMAL,MLY-TMIN-NORMAL,MLY-TAVG-NORMAL,MLY-PRCP-NORMAL,MLY-SNOW-NORMAL
|archive-date = 2023-09-06
}}
</ref><ref name= NOAA2>
{{cite web 
|title = WMO climate normals for ASTORIA/CLATSOP, OR 1961–1990 
|publisher = National Oceanic and Atmospheric Administration 
|url = ftp://ftp.atdd.noaa.gov/pub/GCOS/WMO-Normals/TABLES/REG_IV/US/GROUP4/72791.TXT
|access-date = September 6, 2023
|archive-url = https://web.archive.org/web/20230906151206/ftp://ftp.atdd.noaa.gov/pub/GCOS/WMO-Normals/TABLES/REG_IV/US/GROUP4/72791.TXT
|archive-date = 2023-09-06}}</ref>
}}