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Great Falls, MT vs Helena Valley Northwest, MT weather comparison

Great Falls

MT

Great Falls picks up around 33 more inches of snow each winter.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Great Falls, MT and Helena Valley Northwest, MT
Great FallsMetricHelena Valley Northwest
214 daysSunny daysclear or partly cloudy skies202 days
16 inPrecipitationper year16 in
99 daysWet daysrain or snow per year108 days
67 inSnowfallper year34 in
24 daysHot daysabove 90 °F19 days
147 daysFreezing nightsat or below 32 °F176 days
57%Humidityaverage relative64%
47 °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.

Great FallsHelena Valley Northwest

Daily highs

406080JanMarMayJulSepNovGreat Falls, Jan: 37 °FGreat Falls, Feb: 38 °FGreat Falls, Mar: 48 °FGreat Falls, Apr: 58 °FGreat Falls, May: 67 °FGreat Falls, Jun: 75 °FGreat Falls, Jul: 85 °FGreat Falls, Aug: 84 °FGreat Falls, Sep: 72 °FGreat Falls, Oct: 59 °FGreat Falls, Nov: 45 °FGreat Falls, Dec: 37 °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

2040JanMarMayJulSepNovGreat Falls, Jan: 17 °FGreat Falls, Feb: 18 °FGreat Falls, Mar: 25 °FGreat Falls, Apr: 33 °FGreat Falls, May: 42 °FGreat Falls, Jun: 49 °FGreat Falls, Jul: 55 °FGreat Falls, Aug: 53 °FGreat Falls, Sep: 45 °FGreat Falls, Oct: 35 °FGreat Falls, Nov: 26 °FGreat Falls, Dec: 19 °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
Great Falls high373848586775858472594537
Helena Valley Northwest high323646556473838371564132
Great Falls low171825334249555345352619
Helena Valley Northwest low141623303946535143332215

Monthly precipitation

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

Great FallsHelena Valley Northwest
0.01.02.03.0JanMarMayJulSepNovGreat Falls, Jan: 0.8 inGreat Falls, Feb: 0.7 inGreat Falls, Mar: 1.0 inGreat Falls, Apr: 2.0 inGreat Falls, May: 2.4 inGreat Falls, Jun: 2.9 inGreat Falls, Jul: 1.0 inGreat Falls, Aug: 1.1 inGreat Falls, Sep: 1.4 inGreat Falls, Oct: 1.3 inGreat Falls, Nov: 0.9 inGreat Falls, Dec: 0.8 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
Great Falls0.80.71.02.02.42.91.01.11.41.30.90.8
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.

Great FallsHelena Valley Northwest
01020JanMarMayJulSepNovGreat Falls, Jan: 14 daysGreat Falls, Feb: 13 daysGreat Falls, Mar: 14 daysGreat Falls, Apr: 14 daysGreat Falls, May: 17 daysGreat Falls, Jun: 19 daysGreat Falls, Jul: 26 daysGreat Falls, Aug: 26 daysGreat Falls, Sep: 21 daysGreat Falls, Oct: 19 daysGreat Falls, Nov: 16 daysGreat Falls, Dec: 16 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
Great Falls141314141719262621191616
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.

Great Falls vs another city

See the full Great Falls, 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).