Skip to content
VSWeather

Helena Valley Southeast, MT weather and climate

Lewis and Clark County, MT · population 9,533 · about 3,766 ft elevation

Everything below is a 30 year average for 1991-2020, computed from daily climate history at Helena Valley Southeast's own coordinates.

The year at a glance

Sunny days
201
clear or partly cloudy, per year
Precipitation
21 in
per year
Wet days
133
rain or snow per year
Snowfall
40 in
per year
Hot days
25
above 90 °F
Freezing nights
174
at or below 32 °F
Humidity
65%
average relative
Average temperature
45 °F
year round

Monthly temperatures

Average daily high and low for each month, in °F.

Daily highDaily low
255075JanMarMayJulSepNovDaily high, Jan: 32 °FDaily high, Feb: 37 °FDaily high, Mar: 47 °FDaily high, Apr: 56 °FDaily high, May: 66 °FDaily high, Jun: 74 °FDaily high, Jul: 85 °FDaily high, Aug: 84 °FDaily high, Sep: 73 °FDaily high, Oct: 57 °FDaily high, Nov: 42 °FDaily high, Dec: 33 °FDaily low, Jan: 13 °FDaily low, Feb: 17 °FDaily low, Mar: 24 °FDaily low, Apr: 32 °FDaily low, May: 41 °FDaily low, Jun: 48 °FDaily low, Jul: 54 °FDaily low, Aug: 52 °FDaily low, Sep: 44 °FDaily low, Oct: 33 °FDaily low, Nov: 22 °FDaily low, Dec: 14 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high323747566674858473574233
Daily low131724324148545244332214

Monthly precipitation

Total rain plus melted snow for each month, in inches.

0.02.04.0JanMarMayJulSepNovHelena Valley Southeast, Jan: 0.9 inHelena Valley Southeast, Feb: 0.9 inHelena Valley Southeast, Mar: 1.4 inHelena Valley Southeast, Apr: 2.4 inHelena Valley Southeast, May: 3.2 inHelena Valley Southeast, Jun: 3.8 inHelena Valley Southeast, Jul: 1.7 inHelena Valley Southeast, Aug: 1.5 inHelena Valley Southeast, Sep: 1.6 inHelena Valley Southeast, Oct: 1.5 inHelena Valley Southeast, Nov: 1.2 inHelena Valley Southeast, Dec: 1.1 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Helena Valley Southeast0.90.91.42.43.23.81.71.51.61.51.21.1

Monthly sunny days

Days each month with clear or partly cloudy skies.

01020JanMarMayJulSepNovHelena Valley Southeast, Jan: 13 daysHelena Valley Southeast, Feb: 12 daysHelena Valley Southeast, Mar: 13 daysHelena Valley Southeast, Apr: 13 daysHelena Valley Southeast, May: 15 daysHelena Valley Southeast, Jun: 18 daysHelena Valley Southeast, Jul: 26 daysHelena Valley Southeast, Aug: 26 daysHelena Valley Southeast, Sep: 21 daysHelena Valley Southeast, Oct: 18 daysHelena Valley Southeast, Nov: 14 daysHelena Valley Southeast, Dec: 12 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Helena Valley Southeast131213131518262621181412

Compare Helena Valley Southeast with another city

Nearby cities and popular picks. Any two cities can be compared from the home page.

See weather for every covered Montana city

About this data

Figures are 30 year averages for 1991-2020. 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).