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.
View monthly temperatures as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daily high | 32 | 37 | 47 | 56 | 66 | 74 | 85 | 84 | 73 | 57 | 42 | 33 |
| Daily low | 13 | 17 | 24 | 32 | 41 | 48 | 54 | 52 | 44 | 33 | 22 | 14 |
Monthly precipitation
Total rain plus melted snow for each month, in inches.
View monthly precipitation as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Helena Valley Southeast | 0.9 | 0.9 | 1.4 | 2.4 | 3.2 | 3.8 | 1.7 | 1.5 | 1.6 | 1.5 | 1.2 | 1.1 |
Monthly sunny days
Days each month with clear or partly cloudy skies.
View monthly sunny days as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Helena Valley Southeast | 13 | 12 | 13 | 13 | 15 | 18 | 26 | 26 | 21 | 18 | 14 | 12 |
Compare Helena Valley Southeast with another city
Nearby cities and popular picks. Any two cities can be compared from the home page.
- Helena Valley Southeast vs Helena, MT
- Helena Valley Southeast vs Helena Valley West Central, MT
- Helena Valley Southeast vs Helena Valley Northwest, MT
- Helena Valley Southeast vs Butte, MT
- Helena Valley Southeast vs Great Falls, MT
- Helena Valley Southeast vs Belgrade, MT
- Helena Valley Southeast vs New York, NY
- Helena Valley Southeast vs Los Angeles, CA
- Helena Valley Southeast vs Chicago, IL
- Helena Valley Southeast vs Houston, TX
- Helena Valley Southeast vs Phoenix, AZ
- Helena Valley Southeast vs Philadelphia, PA
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).
Citing this page
Writing about Helena Valley Southeast's climate in a report or paper? Cite this page directly. The reference period is part of the citation, so it stays accurate even as individual numbers are refined; add an access date in whatever citation style you use.
VSWeather. Helena Valley Southeast, MT weather and climate: 1991-2020 climate normals. https://vsweather.com/weather/helena-valley-southeast-mt/. Computed from Open-Meteo historical reanalysis, station-calibrated against NOAA NCEI climate normals.
BibTeX entry
@misc{vsweather_helena_valley_southeast_mt,
author = {{VSWeather}},
title = {Helena Valley Southeast, MT weather and climate: 1991-2020 climate normals},
howpublished = {\url{https://vsweather.com/weather/helena-valley-southeast-mt/}},
note = {Computed from Open-Meteo historical reanalysis, station-calibrated against NOAA NCEI climate normals}
}How to cite VSWeather explains the sources and verification behind these numbers.