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Gillette, WY vs Spearfish, SD weather comparison

Gillette

WY

Spearfish picks up around 21 more inches of snow each winter.

Gillette sees rain or snow on roughly 17 fewer days each year.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Gillette, WY and Spearfish, SD
GilletteMetricSpearfish
239 daysSunny daysclear or partly cloudy skies241 days
18 inPrecipitationper year25 in
106 daysWet daysrain or snow per year123 days
55 inSnowfallper year76 in
29 daysHot daysabove 90 °F26 days
169 daysFreezing nightsat or below 32 °F149 days
58%Humidityaverage relative60%
47 °FAverage temperatureyear round47 °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.

GilletteSpearfish

Daily highs

406080JanMarMayJulSepNovGillette, Jan: 36 °FGillette, Feb: 38 °FGillette, Mar: 49 °FGillette, Apr: 56 °FGillette, May: 66 °FGillette, Jun: 77 °FGillette, Jul: 87 °FGillette, Aug: 85 °FGillette, Sep: 75 °FGillette, Oct: 59 °FGillette, Nov: 46 °FGillette, Dec: 36 °FSpearfish, Jan: 36 °FSpearfish, Feb: 37 °FSpearfish, Mar: 46 °FSpearfish, Apr: 55 °FSpearfish, May: 65 °FSpearfish, Jun: 76 °FSpearfish, Jul: 84 °FSpearfish, Aug: 83 °FSpearfish, Sep: 74 °FSpearfish, Oct: 58 °FSpearfish, Nov: 46 °FSpearfish, Dec: 37 °F

Daily lows

204060JanMarMayJulSepNovGillette, Jan: 15 °FGillette, Feb: 17 °FGillette, Mar: 24 °FGillette, Apr: 31 °FGillette, May: 41 °FGillette, Jun: 50 °FGillette, Jul: 57 °FGillette, Aug: 55 °FGillette, Sep: 46 °FGillette, Oct: 34 °FGillette, Nov: 24 °FGillette, Dec: 16 °FSpearfish, Jan: 15 °FSpearfish, Feb: 16 °FSpearfish, Mar: 24 °FSpearfish, Apr: 32 °FSpearfish, May: 41 °FSpearfish, Jun: 51 °FSpearfish, Jul: 57 °FSpearfish, Aug: 56 °FSpearfish, Sep: 47 °FSpearfish, Oct: 35 °FSpearfish, Nov: 25 °FSpearfish, Dec: 17 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Gillette high363849566677878575594636
Spearfish high363746556576848374584637
Gillette low151724314150575546342416
Spearfish low151624324151575647352517

Monthly precipitation

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

GilletteSpearfish
0.02.04.0JanMarMayJulSepNovGillette, Jan: 0.6 inGillette, Feb: 0.8 inGillette, Mar: 1.4 inGillette, Apr: 2.4 inGillette, May: 3.1 inGillette, Jun: 2.3 inGillette, Jul: 1.4 inGillette, Aug: 1.2 inGillette, Sep: 1.4 inGillette, Oct: 1.9 inGillette, Nov: 0.8 inGillette, Dec: 0.7 inSpearfish, Jan: 0.8 inSpearfish, Feb: 1.1 inSpearfish, Mar: 1.8 inSpearfish, Apr: 3.1 inSpearfish, May: 3.9 inSpearfish, Jun: 3.4 inSpearfish, Jul: 2.6 inSpearfish, Aug: 1.9 inSpearfish, Sep: 1.7 inSpearfish, Oct: 2.4 inSpearfish, Nov: 1.1 inSpearfish, Dec: 0.9 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Gillette0.60.81.42.43.12.31.41.21.41.90.80.7
Spearfish0.81.11.83.13.93.42.61.91.72.41.10.9

Monthly sunny days

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

GilletteSpearfish
01020JanMarMayJulSepNovGillette, Jan: 18 daysGillette, Feb: 16 daysGillette, Mar: 17 daysGillette, Apr: 15 daysGillette, May: 17 daysGillette, Jun: 22 daysGillette, Jul: 27 daysGillette, Aug: 27 daysGillette, Sep: 23 daysGillette, Oct: 20 daysGillette, Nov: 19 daysGillette, Dec: 19 daysSpearfish, Jan: 18 daysSpearfish, Feb: 16 daysSpearfish, Mar: 17 daysSpearfish, Apr: 15 daysSpearfish, May: 17 daysSpearfish, Jun: 21 daysSpearfish, Jul: 27 daysSpearfish, Aug: 26 daysSpearfish, Sep: 23 daysSpearfish, Oct: 21 daysSpearfish, Nov: 19 daysSpearfish, Dec: 20 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Gillette181617151722272723201919
Spearfish181617151721272623211920

Keep comparing

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

Gillette vs another city

See the full Gillette, WY climate profile

More Wyoming cities

Spearfish vs another city

See the full Spearfish, SD climate profile

More South 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).