Editing Williston, North Dakota (section)

===Climate===
Williston has a [[cold semi-arid climate]]; closely bordering upon a [[warm-summer humid continental climate]]. It is part of USDA [[Hardiness zone]] 4a.<ref>{{cite web|title=USDA Plant Hardiness Zone Map|url=http://planthardiness.ars.usda.gov/PHZMWeb/ |publisher=United States Department of Agriculture}}</ref> The normal monthly mean temperature ranges from {{convert|11.5|°F|1}} in January to {{convert|70.4|°F|1}} in July.<ref name=NOAA-W /> On average, there are 2 days that reach {{convert|100|°F|0}} or higher, 22 days of {{convert|90|°F|0}}+ highs, 39 days with a low of {{convert|0|°F|0}} or below, 7 days with lows plummeting to at least {{convert|−20|°F|0}}, and 6 days that do not rise above 0 °F annually.<ref name=NOAA-W /> The average window for freezing temperatures is September 20 through May 21,<ref name=NOAA-W /> allowing a growing season of 121 days; . Extreme temperatures officially range from {{convert|−50|°F|0}} on December 23, 1983 and [[1936 North American cold wave|February 16, 1936]] up to {{convert|110|°F|0}} on [[1936 North American heat wave|July 5, 1936]]; the record cold daily maximum is {{convert|−29|°F|0}} on January 16, 1930, while, conversely, the record warm daily minimum is {{convert|78|°F|0}} last set July 19, 1974.<ref name=NOAA-W />

Precipitation is greatest in June and July and averages {{convert|14.88|in|mm|abbr=on}} annually, but has ranged from {{convert|6.13|in|mm|abbr=on}} in 1934 to {{convert|22.04|in|mm|abbr=on}} in 1896.<ref name=NOAA-W /> Snowfall averages {{convert|48.2|in|cm|abbr=on}} per season, and has historically ranged from {{convert|8.0|in|cm|abbr=on}} in 1908–1909 to {{convert|107.2|in|cm|abbr=on}} in 2010–2011;<ref name=NOAA-W /> the average window for measurable (≥{{convert|0.1|in|cm|abbr=on|disp=or}}) snowfall is October 21 through April 26, although snow in May occurs at most several times per decade and September snow is a much rarer event.<ref name=NOAA-W /> Due to the relative aridity, there are only 3.9 days per season where 24-hour snowfall exceeds {{convert|3|in|cm|abbr=on}}.<ref name="NCDC txt KISN"/>
<section begin="weather box" />

{{Weather box
|location = Williston, North Dakota (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 1894–present{{efn|Official records for Williston kept at the Weather Bureau Office from January 1894 to June 1948, [[Sloulin Field International Airport]] from July 1948 until October 22, 2019, and the new Williston Basin Int'l since October 23, 2019.<ref>{{cite web|url=http://threadex.rcc-acis.org/|title=Threaded Extremes|website=threadex.rcc-acis.org|accessdate=February 16, 2021}}</ref>}}
|collapsed = 
|single line = Y
|Jan record high F = 58
|Feb record high F = 66
|Mar record high F = 84
|Apr record high F = 92
|May record high F = 106
|Jun record high F = 108
|Jul record high F = 110
|Aug record high F = 108
|Sep record high F = 104
|Oct record high F = 93
|Nov record high F = 76
|Dec record high F = 63
|year record high F = 
|Jan avg record high F = 44.0
|Feb avg record high F = 46.7
|Mar avg record high F = 65.1
|Apr avg record high F = 79.0
|May avg record high F = 86.6
|Jun avg record high F = 93.5
|Jul avg record high F = 98.0
|Aug avg record high F = 98.9
|Sep avg record high F = 93.3
|Oct avg record high F = 80.3
|Nov avg record high F = 60.4
|Dec avg record high F = 46.1
|year avg record high F = 100.6
|Jan high F = 22.1
|Feb high F = 26.7
|Mar high F = 40.1
|Apr high F = 55.6
|May high F = 67.4
|Jun high F = 76.7
|Jul high F = 84.5
|Aug high F = 83.9
|Sep high F = 72.6
|Oct high F = 55.9
|Nov high F = 38.4
|Dec high F = 26.1
|year high F = 54.2
|Jan mean F = 11.6
|Feb mean F = 16.1
|Mar mean F = 28.8
|Apr mean F = 42.4
|May mean F = 53.8
|Jun mean F = 63.5
|Jul mean F = 70.4
|Aug mean F = 69.0
|Sep mean F = 58.0
|Oct mean F = 43.2
|Nov mean F = 27.8
|Dec mean F = 16.1
|year mean F = 41.7
|Jan low F = 1.0
|Feb low F = 5.5
|Mar low F = 17.5
|Apr low F = 29.2
|May low F = 40.2
|Jun low F = 50.2
|Jul low F = 56.3
|Aug low F = 54.0
|Sep low F = 43.5
|Oct low F = 30.4
|Nov low F = 17.1
|Dec low F = 6.1
|year low F = 29.3
|Jan avg record low F = -25.8
|Feb avg record low F = -19.5
|Mar avg record low F = -7.6
|Apr avg record low F = 12.6
|May avg record low F = 24.4
|Jun avg record low F = 37.5
|Jul avg record low F = 45.1
|Aug avg record low F = 40.9
|Sep avg record low F = 27.2
|Oct avg record low F = 12.0
|Nov avg record low F = -4.6
|Dec avg record low F = -19.8
|year avg record low F = -29.2
|Jan record low F = −42
|Feb record low F = −50
|Mar record low F = −35
|Apr record low F = −15
|May record low F =  10
|Jun record low F =  26
|Jul record low F =  34
|Aug record low F =  32
|Sep record low F =  13
|Oct record low F =  −9
|Nov record low F = −27
|Dec record low F = −50
|year record low F = -50
|precipitation colour = green
|Jan precipitation inch = 0.56
|Feb precipitation inch = 0.48
|Mar precipitation inch = 0.63
|Apr precipitation inch = 1.05
|May precipitation inch = 2.10
|Jun precipitation inch = 2.64
|Jul precipitation inch = 2.48
|Aug precipitation inch = 1.57
|Sep precipitation inch = 1.36
|Oct precipitation inch = 0.94
|Nov precipitation inch = 0.67
|Dec precipitation inch = 0.63
|year precipitation inch = 15.11
|Jan snow inch = 11.2
|Feb snow inch = 6.7
|Mar snow inch = 6.4
|Apr snow inch = 3.7
|May snow inch = 0.9
|Jun snow inch = 0.0
|Jul snow inch = 0.0
|Aug snow inch = 0.0
|Sep snow inch = 0.0
|Oct snow inch = 2.6
|Nov snow inch = 6.3
|Dec snow inch = 10.4
|year snow inch = 48.2
|unit precipitation days = 0.01 in
|Jan precipitation days = 7.6
|Feb precipitation days = 7.1
|Mar precipitation days = 7.4
|Apr precipitation days = 8.3
|May precipitation days = 9.9
|Jun precipitation days = 12.3
|Jul precipitation days = 9.2
|Aug precipitation days = 8.7
|Sep precipitation days = 7.5
|Oct precipitation days = 6.9
|Nov precipitation days = 6.8
|Dec precipitation days = 8.5
|year precipitation days = 100.2
|unit snow days = 0.1 in
|Jan snow days = 9.8
|Feb snow days = 6.9
|Mar snow days = 6.0
|Apr snow days = 2.7
|May snow days = 0.9
|Jun snow days = 0.0
|Jul snow days = 0.0
|Aug snow days = 0.0
|Sep snow days = 0.0
|Oct snow days = 1.9
|Nov snow days = 5.8
|Dec snow days = 8.8
|year snow days = 42.8
|Jan humidity = 71.3
|Feb humidity = 75.6
|Mar humidity = 72.5
|Apr humidity = 61.4
|May humidity = 58.5
|Jun humidity = 59.6
|Jul humidity = 56.1
|Aug humidity = 54.9
|Sep humidity = 61.1
|Oct humidity = 65.2
|Nov humidity = 74.9
|Dec humidity = 77.1
|year humidity = 66.1
|Jan sun = 144.5
|Feb sun = 169.7
|Mar sun = 227.3
|Apr sun = 250.3
|May sun = 297.9
|Jun sun = 326.0
|Jul sun = 366.3
|Aug sun = 331.5
|Sep sun = 249.5
|Oct sun = 197.1
|Nov sun = 122.2
|Dec sun = 125.5 
|year sun = 2807.8
|Jan percentsun = 53 
|Feb percentsun = 59
|Mar percentsun = 62
|Apr percentsun = 61
|May percentsun = 63
|Jun percentsun = 68
|Jul percentsun = 76
|Aug percentsun = 75
|Sep percentsun = 66
|Oct percentsun = 59
|Nov percentsun = 44
|Dec percentsun = 48
|year percentsun = 63
| Jan dew point C = −15.9
| Feb dew point C = −12.2
| Mar dew point C =  −6.7
| Apr dew point C =  −1.9
| May dew point C =   3.8
| Jun dew point C =   9.2
| Jul dew point C =  11.2
| Aug dew point C =   9.7
| Sep dew point C =   5.1
| Oct dew point C =  −0.5
| Nov dew point C =  −6.9
| Dec dew point C = −13.6
|source 1 = [[NOAA]] (relative humidity and dew point 1962–1990, sun 1961–1990){{efn|Only 22 to 24 years out of the 29 in the normals period were used to calculate the humidity normals.}}<ref name=NOAA-W>
{{cite web
| url = https://www.weather.gov/wrh/Climate?wfo=bis
| title = NowData – NOAA Online Weather Data
| publisher = National Oceanic and Atmospheric Administration
|access-date = September 17, 2021}}</ref><ref name="NCDC txt KISN">
{{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=USW00094014&format=pdf
| title = Station: Williston Sloulin INTL AP, ND
| work = U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991-2020)
| publisher = National Oceanic and Atmospheric Administration
| access-date = September 17, 2021}}</ref><ref>
{{cite web 
| url = https://www.ncei.noaa.gov/pub/data/normals/WMO/1961-1990/TABLES/REG_IV/US/GROUP4/72767.TXT
| title = WMO climate normals for Williston/Sloulin Field, ND 1961−1990 
| publisher = National Oceanic and Atmospheric Administration
| access-date = September 17, 2021}}</ref>
}}<section end="weather box" />
;Notes: 
{{notelist}}