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Butte, MT vs Helena Valley Northwest, MT weather comparison

Butte

MT

Butte picks up around 36 more inches of snow each winter.

Helena Valley Northwest sees rain or snow on roughly 42 fewer days each year. Helena Valley Northwest has around 49 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 Valley Northwest, MT
ButteMetricHelena Valley Northwest
194 daysSunny daysclear or partly cloudy skies202 days
23 inPrecipitationper year16 in
150 daysWet daysrain or snow per year108 days
70 inSnowfallper year34 in
6 daysHot daysabove 90 °F19 days
225 daysFreezing nightsat or below 32 °F176 days
67%Humidityaverage relative64%
40 °FAverage temperatureyear round44 °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 Valley Northwest

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 Valley Northwest, Jan: 32 °FHelena Valley Northwest, Feb: 36 °FHelena Valley Northwest, Mar: 46 °FHelena Valley Northwest, Apr: 55 °FHelena Valley Northwest, May: 64 °FHelena Valley Northwest, Jun: 73 °FHelena Valley Northwest, Jul: 83 °FHelena Valley Northwest, Aug: 83 °FHelena Valley Northwest, Sep: 71 °FHelena Valley Northwest, Oct: 56 °FHelena Valley Northwest, Nov: 41 °FHelena Valley Northwest, Dec: 32 °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 Valley Northwest, Jan: 14 °FHelena Valley Northwest, Feb: 16 °FHelena Valley Northwest, Mar: 23 °FHelena Valley Northwest, Apr: 30 °FHelena Valley Northwest, May: 39 °FHelena Valley Northwest, Jun: 46 °FHelena Valley Northwest, Jul: 53 °FHelena Valley Northwest, Aug: 51 °FHelena Valley Northwest, Sep: 43 °FHelena Valley Northwest, Oct: 33 °FHelena Valley Northwest, Nov: 22 °FHelena Valley Northwest, Dec: 15 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Butte high323544516170818070554031
Helena Valley Northwest high323646556473838371564132
Butte low9101926344045433526168
Helena Valley Northwest low141623303946535143332215

Monthly precipitation

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

ButteHelena Valley Northwest
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 Valley Northwest, Jan: 0.8 inHelena Valley Northwest, Feb: 0.8 inHelena Valley Northwest, Mar: 1.1 inHelena Valley Northwest, Apr: 1.9 inHelena Valley Northwest, May: 2.3 inHelena Valley Northwest, Jun: 2.6 inHelena Valley Northwest, Jul: 1.0 inHelena Valley Northwest, Aug: 0.9 inHelena Valley Northwest, Sep: 1.2 inHelena Valley Northwest, Oct: 1.2 inHelena Valley Northwest, Nov: 1.0 inHelena Valley Northwest, Dec: 0.9 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Butte1.01.11.72.53.33.71.91.51.61.61.41.2
Helena Valley Northwest0.80.81.11.92.32.61.00.91.21.21.00.9

Monthly sunny days

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

ButteHelena Valley Northwest
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 Valley Northwest, Jan: 12 daysHelena Valley Northwest, Feb: 12 daysHelena Valley Northwest, Mar: 14 daysHelena Valley Northwest, Apr: 13 daysHelena Valley Northwest, May: 16 daysHelena Valley Northwest, Jun: 18 daysHelena Valley Northwest, Jul: 26 daysHelena Valley Northwest, Aug: 26 daysHelena Valley Northwest, Sep: 21 daysHelena Valley Northwest, Oct: 18 daysHelena Valley Northwest, Nov: 13 daysHelena Valley Northwest, Dec: 12 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Butte121112121417262621181412
Helena Valley Northwest121214131618262621181312

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 Valley Northwest vs another city

See the full Helena Valley Northwest, 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).