Editing Bergen County, New Jersey (section)

===Climate===
{{climate chart
|[[Hackensack, New Jersey]]
|19|38|3.65
|22|41|3.21
|30|50|4.36
|40|62|4.50
|50|72|4.19
|60|81|4.41
|65|86|4.60
|63|84|4.44
|55|76|4.28
|42|64|4.40
|34|54|4.02
|25|43|4.00
|float=right
|units=imperial
|clear=both
|source=The Weather Channel<ref name="weather">{{cite web
  |url=http://www.weather.com/weather/wxclimatology/monthly/graph/USNJ0190
  |title=Monthly Averages for Hackensack, New Jersey
  |access-date=October 13, 2012
|publisher=The Weather Channel
}}</ref>}}

Southeastern Bergen County lies at the edge of the [[humid subtropical climate]] zone (''Cfa'') according to the [[Köppen climate classification]] because its coldest month (January) averages above 26.6&nbsp;°F / -3&nbsp;°C.<ref>{{cite web|url=http://www.idcide.com/weather/nj/ramsey.htm |title=Ramsey Weather &#124; Ramsey NJ &#124; Conditions, Forecast, Average |publisher=Idcide.com |access-date=January 14, 2012}}</ref><ref>{{cite web|url=http://www.idcide.com/weather/nj/hackensack.htm |title=Hackensack Weather &#124; Hackensack NJ &#124; Conditions, Forecast, Average |publisher=Idcide.com |access-date=January 14, 2012}}</ref><ref>{{cite web|url=http://www.idcide.com/weather/nj/fairview.htm |title=Fairview Weather &#124; Fairview NJ &#124; Conditions, Forecast, Average |publisher=Idcide.com |access-date=January 14, 2012}}</ref> In part due to Bergen's coastal location, its lower [[elevation]], and the partial shielding of the county from colder air by the three ridges of the [[Watchung Mountains]] as well as by the higher [[Appalachian Mountains|Appalachians]], the climate of Bergen County is milder than in New Jersey counties further inland such as [[Sussex County, New Jersey|Sussex County]]. Bergen County has a moderately sunny climate, averaging between 2,400 and 2,800 hours of [[sunshine]] annually.<ref>{{cite web|url=http://maps.howstuffworks.com/united-states-annual-sunshine-map.htm |title=united states annual sunshine map |publisher=HowStuffWorks, Inc |access-date=March 15, 2011 |url-status=dead |archive-url=https://web.archive.org/web/20110429042722/http://maps.howstuffworks.com/united-states-annual-sunshine-map.htm |archive-date=April 29, 2011  }}</ref>

In recent years, average temperatures in the county seat of Hackensack have ranged from a low of {{convert|19|F}} in January to a high of {{convert|86|F}} in July, although a record low of {{convert|-15|F}} was recorded in February 1934 and a record high of {{convert|106|F}} was recorded in July 1936. Average monthly precipitation ranged from {{convert|3.21|in}} in February to {{convert|4.60|in}} in July.<ref name="weather"/>

Average monthly temperatures at the interchange of Route 17 and MacArthur Boulevard in Mahwah range from 28.5&nbsp;°F in January to 73.8&nbsp;°F in July. Using the 0&nbsp;°C January isotherm, most of Bergen has a hot-summer [[humid continental climate]] (''Dfa'') except for higher areas in the [[Ramapo Mountains]], which are ''Dfb'', and along the Hudson River from Fort Lee downward, where ''Cfa'' exists.<ref>[http://prism.oregonstate.edu/explorer/ Time Series Values for Individual Locations], PRISM. Accessed March 29, 2023.</ref> Due to its location and elevation span, Bergen is the only county in New Jersey to have all three of the state's Köppen climate zones.{{Citation needed|date=March 2023}}