Climate Comfort Score
39/100
Below Average
NOAA 1991–2020 normals 39°F annual avg 2 stations
Opheim, MT Climate
Average temperature, precipitation, and a comfort score, drawn from NOAA NCEI 1991–2020 normals →
- 39°F
- Avg annual temp
- 39/100
- Comfort score
- 14.4"
- Annual precip
- 98d
- Growing season
30-year climate normals from 2 weather stations (1991-2020).
The climate verdict for Opheim
Opheim, Montana averages 39°F a year and scores 39/100 on the comfort index - below average, milder than 4% of U.S. cities.
- 39°F
- average temperature, NOAA 1991-2020 normal
- 39/100
- comfort score, milder than 4% of U.S. cities
- 14.4"
- annual precipitation · 33" snow
- 98 days
- frost-free days per growing season
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
39°F (4°C)
Avg High
52°F
Avg Low
26°F
Annual Precip
14.4"
Annual Snow
33.0"
Comfort Score
39/100
Below Average
Avg Annual Temperature
39°F
30-year mean (NOAA NCEI)
Annual Precipitation
14.4"
Plus 33.0" of snow
Comfort score vs national 100-point ceiling (Opheim) 39.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Below Average for the Opheim area.
How Opheim compares to every U.S. city
Opheim's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
39 Top 96% higher than 4% of 6,915 US cities
Each bar is a band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Warming context for Opheim
MethodologyHow the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Opheim captures average conditions across the spread shown, the most recent decade is warmer than the 30-year mean.
- United States land mean (NOAA NCEI) +0.11 °C/decade
- Global anomaly (NASA GISTEMP) +0.11 °C/decade
- Paris Agreement thresholds 1.5°C / 2.0°C
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 22°F (-6°C) | 1°F (-17°C) | 11°F (-12°C) | 0.3" | 4.5" | 30.6 | 0.0 |
| February | 26°F (-4°C) | 4°F (-16°C) | 15°F (-10°C) | 0.4" | 6.2" | 27.5 | 0.0 |
| March | 38°F (3°C) | 15°F (-9°C) | 27°F (-3°C) | 0.4" | 5.1" | 29.4 | 0.0 |
| April | 54°F (12°C) | 26°F (-3°C) | 40°F (4°C) | 0.9" | 2.5" | 23.3 | 0.0 |
| May | 65°F (19°C) | 36°F (2°C) | 51°F (10°C) | 2.1" | 0.9" | 10.8 | 0.0 |
| June | 73°F (23°C) | 46°F (8°C) | 59°F (15°C) | 3.7" | 0.0" | 0.9 | 0.7 |
| July | 81°F (27°C) | 50°F (10°C) | 66°F (19°C) | 2.3" | 0.0" | 0.0 | 4.4 |
| August | 81°F (27°C) | 49°F (9°C) | 65°F (18°C) | 1.6" | 0.0" | 0.5 | 6.1 |
| September | 70°F (21°C) | 39°F (4°C) | 55°F (13°C) | 1.4" | 0.2" | 6.9 | 1.2 |
| October | 54°F (12°C) | 28°F (-2°C) | 41°F (5°C) | 0.8" | 1.2" | 21.5 | 0.0 |
| November | 37°F (3°C) | 15°F (-9°C) | 26°F (-3°C) | 0.4" | 5.3" | 28.0 | 0.0 |
| December | 25°F (-4°C) | 4°F (-15°C) | 14°F (-10°C) | 0.3" | 7.1" | 30.6 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 0.3"
Snow: 4.5"
2.9 days with precipitation
February 0.4"
Snow: 6.2"
3.4 days with precipitation
March 0.4"
Snow: 5.1"
3.2 days with precipitation
April 0.9"
Snow: 2.5"
5.2 days with precipitation
May 2.1"
Snow: 0.9"
7.3 days with precipitation
June 3.7"
10.5 days with precipitation
July 2.3"
7.3 days with precipitation
August 1.6"
5.7 days with precipitation
September 1.4"
Snow: 0.2"
5.6 days with precipitation
October 0.8"
Snow: 1.2"
4.1 days with precipitation
November 0.4"
Snow: 5.3"
3.1 days with precipitation
December 0.3"
Snow: 7.1"
2.8 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
September 7
50% probability date
Last Spring Freeze
June 1
50% probability date
Growing Season
98 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
9,603
Higher = more heating needed
Cooling Degree Days
211
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Opheim's climate means for you
Opheim runs 39°F a year - peaking in July, coldest in January.
- Gardeners get about 98 frost-free days, with the last spring freeze near June 1 - plan the planting calendar around it, not the regional average.
- Energy bills track 9,603 heating and 211 cooling degree days a year, higher means the furnace or AC runs more.
- Comparing places to live? Line this city up against nearby cities and the national rankings. See rankings
These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.
Climate Guides
Climate Insight: Opheim, MT
Opheim, Montana runs an annual average of 39°F, ranging from a mean daily high of 52°F to a mean daily low of 26°F, per NOAA's 1991–2020 climate normals. July is typically the warmest month of the year, while January is the coldest. Drawn from 2 weather stations, these thirty-year averages smooth out year-to-year swings into a baseline for what a typical month looks like here.
Beyond temperature, Opheim averages 14.4 inches of precipitation annually, with 33.0 inches typically falling as snow - a real factor for anyone planning to live, garden, or travel here. The frost-free season averages 98 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near June 1 and the first fall freeze near September 7. Turning to energy use, 9,603 heating degree days and 211 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Opheim scores 39/100 (Below Average), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above are the practical planning tool: mild highs and lows land in the shoulder seasons, July-driven heat peaks in summer, and January-driven cold sets in over deep winter. These are thirty-year averages, not a forecast - any single year can run warmer, wetter, drier, or cooler than the normal.
Frequently Asked Questions
What is the average temperature in Opheim, MT? ▼
The average annual temperature in Opheim, Montana is 39°F. The warmest month averages 81°F (27°C) and the coldest averages 1°F (-17°C).
How much rain does Opheim get? ▼
Opheim receives 14.4 inches of precipitation annually, including 33.0 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Opheim? ▼
Opheim has a climate comfort score of 39/100 (Below Average), milder than 4% of U.S. cities in the PlainClimate database.
When is the growing season in Opheim? ▼
Opheim has approximately 98 frost-free days per year, with the last spring freeze around June 1 and the first fall freeze around September 7.
How much energy does heating and cooling require in Opheim? ▼
Opheim has 9,603 heating degree days and 211 cooling degree days annually, a heating-dominated climate. See our <a href="/guides/reading-weather-data/" class="underline hover:text-brand-600">guide to reading weather data</a> for what these figures mean.
Where does this Opheim climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from 2 weather stations near Opheim.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00246236. For informational purposes only.
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial
Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. This page draws directly on NOAA 1991-2020 U.S. Climate Normals data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.