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Sidney, MT vs Williston, ND weather comparison

Sidney

MT

Williston picks up around 17 more inches of snow each winter.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Sidney, MT and Williston, ND
SidneyMetricWilliston
217 daysSunny daysclear or partly cloudy skies204 days
17 inPrecipitationper year18 in
91 daysWet daysrain or snow per year95 days
30 inSnowfallper year48 in
30 daysHot daysabove 90 °F21 days
176 daysFreezing nightsat or below 32 °F190 days
63%Humidityaverage relative66%
45 °FAverage temperatureyear round42 °F

Monthly temperatures

Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.

SidneyWilliston

Daily highs

20406080JanMarMayJulSepNovSidney, Jan: 27 °FSidney, Feb: 32 °FSidney, Mar: 46 °FSidney, Apr: 60 °FSidney, May: 71 °FSidney, Jun: 79 °FSidney, Jul: 87 °FSidney, Aug: 86 °FSidney, Sep: 76 °FSidney, Oct: 59 °FSidney, Nov: 42 °FSidney, Dec: 31 °FWilliston, Jan: 22 °FWilliston, Feb: 27 °FWilliston, Mar: 40 °FWilliston, Apr: 56 °FWilliston, May: 67 °FWilliston, Jun: 77 °FWilliston, Jul: 85 °FWilliston, Aug: 84 °FWilliston, Sep: 73 °FWilliston, Oct: 56 °FWilliston, Nov: 38 °FWilliston, Dec: 26 °F

Daily lows

0204060JanMarMayJulSepNovSidney, Jan: 6 °FSidney, Feb: 11 °FSidney, Mar: 21 °FSidney, Apr: 32 °FSidney, May: 43 °FSidney, Jun: 52 °FSidney, Jul: 57 °FSidney, Aug: 55 °FSidney, Sep: 46 °FSidney, Oct: 34 °FSidney, Nov: 21 °FSidney, Dec: 11 °FWilliston, Jan: 1 °FWilliston, Feb: 6 °FWilliston, Mar: 18 °FWilliston, Apr: 29 °FWilliston, May: 40 °FWilliston, Jun: 50 °FWilliston, Jul: 56 °FWilliston, Aug: 54 °FWilliston, Sep: 44 °FWilliston, Oct: 31 °FWilliston, Nov: 17 °FWilliston, Dec: 6 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Sidney high273246607179878676594231
Williston high222740566777858473563826
Sidney low61121324352575546342111
Williston low161829405056544431176

Monthly precipitation

Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.

SidneyWilliston
0.01.02.03.0JanMarMayJulSepNovSidney, Jan: 0.5 inSidney, Feb: 0.5 inSidney, Mar: 0.9 inSidney, Apr: 1.6 inSidney, May: 2.7 inSidney, Jun: 2.9 inSidney, Jul: 2.0 inSidney, Aug: 1.7 inSidney, Sep: 1.6 inSidney, Oct: 1.2 inSidney, Nov: 0.8 inSidney, Dec: 0.6 inWilliston, Jan: 0.6 inWilliston, Feb: 0.5 inWilliston, Mar: 0.9 inWilliston, Apr: 1.5 inWilliston, May: 2.6 inWilliston, Jun: 3.2 inWilliston, Jul: 2.3 inWilliston, Aug: 1.8 inWilliston, Sep: 1.7 inWilliston, Oct: 1.3 inWilliston, Nov: 0.8 inWilliston, Dec: 0.6 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Sidney0.50.50.91.62.72.92.01.71.61.20.80.6
Williston0.60.50.91.52.63.22.31.81.71.30.80.6

Monthly sunny days

Days each month with clear or partly cloudy skies, so compare the same month between cities.

SidneyWilliston
01020JanMarMayJulSepNovSidney, Jan: 15 daysSidney, Feb: 14 daysSidney, Mar: 14 daysSidney, Apr: 15 daysSidney, May: 17 daysSidney, Jun: 19 daysSidney, Jul: 26 daysSidney, Aug: 26 daysSidney, Sep: 22 daysSidney, Oct: 18 daysSidney, Nov: 16 daysSidney, Dec: 16 daysWilliston, Jan: 13 daysWilliston, Feb: 12 daysWilliston, Mar: 14 daysWilliston, Apr: 15 daysWilliston, May: 16 daysWilliston, Jun: 18 daysWilliston, Jul: 25 daysWilliston, Aug: 25 daysWilliston, Sep: 20 daysWilliston, Oct: 17 daysWilliston, Nov: 15 daysWilliston, Dec: 14 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Sidney151414151719262622181616
Williston131214151618252520171514

Keep comparing

Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.

Sidney vs another city

See the full Sidney, MT climate profile

More Montana cities

Williston vs another city

See the full Williston, ND climate profile

More North Dakota cities

About this data

Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).