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Butte, MT vs Helena, MT weather comparison

Butte

MT

Helena endures about 20 more days above 90 °F each year.

Butte picks up around 30 more inches of snow each winter. Helena has around 54 fewer freezing nights a year.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Butte, MT and Helena, MT
ButteMetricHelena
194 daysSunny daysclear or partly cloudy skies201 days
23 inPrecipitationper year21 in
150 daysWet daysrain or snow per year133 days
70 inSnowfallper year40 in
6 daysHot daysabove 90 °F26 days
225 daysFreezing nightsat or below 32 °F171 days
67%Humidityaverage relative65%
40 °FAverage temperatureyear round46 °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.

ButteHelena

Daily highs

406080JanMarMayJulSepNovButte, Jan: 32 °FButte, Feb: 35 °FButte, Mar: 44 °FButte, Apr: 51 °FButte, May: 61 °FButte, Jun: 70 °FButte, Jul: 81 °FButte, Aug: 80 °FButte, Sep: 70 °FButte, Oct: 55 °FButte, Nov: 40 °FButte, Dec: 31 °FHelena, Jan: 32 °FHelena, Feb: 37 °FHelena, Mar: 47 °FHelena, Apr: 56 °FHelena, May: 66 °FHelena, Jun: 74 °FHelena, Jul: 86 °FHelena, Aug: 84 °FHelena, Sep: 73 °FHelena, Oct: 57 °FHelena, Nov: 43 °FHelena, Dec: 33 °F

Daily lows

2040JanMarMayJulSepNovButte, Jan: 9 °FButte, Feb: 10 °FButte, Mar: 19 °FButte, Apr: 26 °FButte, May: 34 °FButte, Jun: 40 °FButte, Jul: 45 °FButte, Aug: 43 °FButte, Sep: 35 °FButte, Oct: 26 °FButte, Nov: 16 °FButte, Dec: 8 °FHelena, Jan: 13 °FHelena, Feb: 17 °FHelena, Mar: 24 °FHelena, Apr: 32 °FHelena, May: 41 °FHelena, Jun: 48 °FHelena, Jul: 55 °FHelena, Aug: 53 °FHelena, Sep: 44 °FHelena, Oct: 33 °FHelena, Nov: 23 °FHelena, Dec: 14 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Butte high323544516170818070554031
Helena high323747566674868473574333
Butte low9101926344045433526168
Helena low131724324148555344332314

Monthly precipitation

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

ButteHelena
0.02.04.0JanMarMayJulSepNovButte, Jan: 1.0 inButte, Feb: 1.1 inButte, Mar: 1.7 inButte, Apr: 2.5 inButte, May: 3.3 inButte, Jun: 3.7 inButte, Jul: 1.9 inButte, Aug: 1.5 inButte, Sep: 1.6 inButte, Oct: 1.6 inButte, Nov: 1.4 inButte, Dec: 1.2 inHelena, Jan: 0.9 inHelena, Feb: 0.9 inHelena, Mar: 1.4 inHelena, Apr: 2.4 inHelena, May: 3.2 inHelena, Jun: 3.8 inHelena, Jul: 1.7 inHelena, Aug: 1.5 inHelena, Sep: 1.6 inHelena, Oct: 1.5 inHelena, Nov: 1.2 inHelena, Dec: 1.1 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Butte1.01.11.72.53.33.71.91.51.61.61.41.2
Helena0.90.91.42.43.23.81.71.51.61.51.21.1

Monthly sunny days

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

ButteHelena
01020JanMarMayJulSepNovButte, Jan: 12 daysButte, Feb: 11 daysButte, Mar: 12 daysButte, Apr: 12 daysButte, May: 14 daysButte, Jun: 17 daysButte, Jul: 26 daysButte, Aug: 26 daysButte, Sep: 21 daysButte, Oct: 18 daysButte, Nov: 14 daysButte, Dec: 12 daysHelena, Jan: 13 daysHelena, Feb: 12 daysHelena, Mar: 13 daysHelena, Apr: 13 daysHelena, May: 15 daysHelena, Jun: 18 daysHelena, Jul: 26 daysHelena, Aug: 26 daysHelena, Sep: 21 daysHelena, Oct: 18 daysHelena, Nov: 14 daysHelena, Dec: 12 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Butte121112121417262621181412
Helena131213131518262621181412

Keep comparing

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

Butte vs another city

See the full Butte, MT climate profile

More Montana cities

Helena vs another city

See the full Helena, MT climate profile

More Montana 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).