Editing Arendal (section)

==Climate==
The climate along the southern coast is temperate. Arendal has a significant amount of rainfall during the year. This is true, even for the driest month. The climate here is classified as temperate oceanic (Cfb by the [[Köppen climate classification|Köppen-Geiger system]]). The all-time low is from January 1942, and the all-time high is from June 1995. The average date for the last overnight freeze (low below {{convert|0|°C|1|abbr=on}}) in spring is 11 April<ref>{{Cite web |date=4 May 2012 |title=Siste frostnatt om våren |url=https://www.yr.no/artikkel/siste-frostnatt-om-varen-1.8119060}}</ref> and average date for first freeze in autumn is 17 November<ref>{{Cite web |date=25 September 2013 |title=Første frostnatt |url=https://www.yr.no/artikkel/forste-frostnatt-1.11261900}}</ref> giving a frost-free season of 219 days (1981-2010 average for Torungen). The data is from Torungen, a coastal station. Only slightly further inland, the winters get colder and the summer days get warmer. With southeasterly airflow in winter, the area can get heavy snowfall,<ref>{{Cite web |date=24 February 2007 |title=Sørlandet begravd i snø |url=https://www.aftenposten.no/norge/i/k6KOX/soerlandet-begravd-i-snoe}}</ref> which can interrupt traffic. However, the snow rarely lasts long along the coast. 
{{Weather box
|metric first= yes
|single line = yes
|location = Arendal 1991-2020 (12 m, Torungen lighthouse, precipitation days 1961-90, extremes 1877-2020)
|Jan record high C = 12.2 | Jan record low C = -21.6
|Feb record high C = 15.8 | Feb record low C = -20.9
|Mar record high C = 20.5 | Mar record low C = -18.1
|Apr record high C = 20.9 | Apr record low C = -10.2
|May record high C = 24.6 | May record low C = -2.3
|Jun record high C = 29.2 | Jun record low C = 2.6
|Jul record high C = 28.7 | Jul record low C = 7.5
|Aug record high C = 29 | Aug record low C = 6.1
|Sep record high C = 26.4 | Sep record low C = 1.9
|Oct record high C = 20.3 | Oct record low C = -6.8
|Nov record high C = 16.3 | Nov record low C = -12
|Dec record high C = 13.4 | Dec record low C = -17.4
|Jan high C = 3.7
|Feb high C = 3.2
|Mar high C = 5.2
|Apr high C = 8.4
|May high C = 13.1
|Jun high C = 17.1
|Jul high C = 19.3
|Aug high C = 19.2
|Sep high C = 15.9
|Oct high C = 11.3
|Nov high C = 7.4
|Dec high C = 4.6
<!-- Mean daily temperature -->
|Jan mean C=1.6
|Feb mean C=1.1
|Mar mean C=2.7
|Apr mean C=5.8
|May mean C=10.4
|Jun mean C=14.2
|Jul mean C=16.6
|Aug mean C=16.6
|Sep mean C=13.5
|Oct mean C=9.2
|Nov mean C=5.4
|Dec mean C=2.6
|year mean C=
|Jan low C = -0.3
|Feb low C = -0.8
|Mar low C = 0.6
|Apr low C = 3.7
|May low C = 8
|Jun low C = 11.9
|Jul low C = 14.3
|Aug low C = 14.2
|Sep low C = 11.4
|Oct low C = 7.2
|Nov low C = 3.6
|Dec low C = 0.7
<!-- Total precipitation, this should include rain and snow. -->
|precipitation colour= green<!-- Enter "green" for green precipitation colours, remove this line for blue colouring. -->
|Jan precipitation mm=86.5
|Feb precipitation mm=60.6
|Mar precipitation mm=56.5
|Apr precipitation mm=48.1
|May precipitation mm=59.5
|Jun precipitation mm=68.2
|Jul precipitation mm=61
|Aug precipitation mm=87.9
|Sep precipitation mm=88.2
|Oct precipitation mm=116.9
|Nov precipitation mm=113.1
|Dec precipitation mm=93.2
|year precipitation mm=
|unit precipitation days = 1.0&nbsp;mm
|Jan precipitation days= 10
|Feb precipitation days= 7
|Mar precipitation days= 9
|Apr precipitation days= 7
|May precipitation days= 9
|Jun precipitation days= 8
|Jul precipitation days= 8
|Aug precipitation days= 9
|Sep precipitation days= 11
|Oct precipitation days= 12
|Nov precipitation days= 13
|Dec precipitation days= 10
<!-- Mandatory fields, source -->
|source 1= Norwegian Meteorological Institute<ref>{{Cite web |title=EKlima |url=http://sharki.oslo.dnmi.no/portal/page?_pageid=73,39035,73_39080&_dad=portal&_schema=PORTAL |archive-url=https://web.archive.org/web/20210128080558/http://sharki.oslo.dnmi.no/portal/page?_pageid=73,39035,73_39080&_dad=portal&_schema=PORTAL |archive-date=28 January 2021 |access-date=13 March 2021}}</ref>
|source 2=Meteostat 1991-2020 <ref>{{Cite web |title=Meteostat Torungen 1991-2020 (average high and low) |url=https://meteostat.net/en/station/01465/climate}}</ref>|date=February 2022
}}
<br>
{{Weather box
|collapsed=yes
|location = Arendal 1961-1990
|metric first = yes
|single line = yes
|Jan high C = 1.8
|Feb high C = 1.4
|Mar high C = 3.4
|Apr high C = 7.7
|May high C = 13.0
|Jun high C = 16.8
|Jul high C = 19.2
|Aug high C = 19.0
|Sep high C = 15.3
|Oct high C = 11.0
|Nov high C = 6.7
|Dec high C = 3.8
|year high C = 9.9
|Jan mean C = -0.4
|Feb mean C = -1.0
|Mar mean C =  0.9
|Apr mean C =  4.7
|May mean C =  9.6
|Jun mean C = 13.3
|Jul mean C = 15.9
|Aug mean C = 15.8
|Sep mean C = 12.5
|Oct mean C = 8.7
|Nov mean C = 4.5
|Dec mean C = 1.7
|year mean C = 7.2
|Jan low C = -2.5
|Feb low C = -3.4
|Mar low C = -1.6
|Apr low C =  1.7
|May low C =  6.3
|Jun low C =  9.9
|Jul low C = 12.6
|Aug low C = 12.6
|Sep low C =  9.8
|Oct low C =  6.4
|Nov low C =  2.3
|Dec low C = -0.3
|year low C = 4.5
|Jan precipitation mm = 85
|Feb precipitation mm = 60
|Mar precipitation mm = 67
|Apr precipitation mm = 49
|May precipitation mm = 61
|Jun precipitation mm = 64
|Jul precipitation mm = 78
|Aug precipitation mm = 105
|Sep precipitation mm = 107
|Oct precipitation mm = 122
|Nov precipitation mm = 120
|Dec precipitation mm = 92
|year precipitation mm =
|source 1 = Climate-Data.org<ref name="Climate-Data.org">{{Cite web |title=Climate: Arendal |url=http://en.climate-data.org/location/9876/ |access-date=18 April 2014 |publisher=Climate-Data.org}}</ref>
}}