Climate Comfort Score
34/100
Below Average
NOAA 1991–2020 normals 44°F annual avg Public-domain federal data
Twin Bridges, MT Climate
Annual temperature, rainfall, and a comfort score, sourced from NOAA NCEI's 1991–2020 normals →
- 44°F
- Avg annual temp
- 34/100
- Comfort score
- 9.4"
- Annual precip
- 86d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Twin Bridges
Twin Bridges, Montana averages 44°F a year and scores 34/100 on the comfort index - below average, milder than 1% of U.S. cities.
- 44°F
- annual average temperature (NOAA normal)
- 34/100
- comfort score, milder than 1% of U.S. cities
- 9.4"
- annual precipitation
- 86 days
- growing season, frost-free days
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
44°F (6°C)
Avg High
59°F
Avg Low
29°F
Annual Precip
9.4"
Comfort Score
34/100
Below Average
Avg Annual Temperature
44°F
30-year mean (NOAA NCEI)
Annual Precipitation
9.4"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Twin Bridges) 34.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Below Average for the Twin Bridges area.
How Twin Bridges compares to every U.S. city
Twin Bridges's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
34 Top 99% higher than 1% 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 Twin Bridges
MethodologySince 1900, U.S. land temperatures have tracked (and diverged from) the global mean - the chart below shows how. Twin Bridges's current NOAA 1991-2020 normal sits within that longer spread, and the most recent decade runs 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 | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 35°F (2°C) | 13°F (-11°C) | 24°F (-4°C) | 0.2" | 30.1 | 0.0 |
| February | 40°F (4°C) | 15°F (-9°C) | 27°F (-3°C) | 0.2" | 26.7 | 0.0 |
| March | 49°F (10°C) | 22°F (-6°C) | 36°F (2°C) | 0.4" | 27.3 | 0.0 |
| April | 57°F (14°C) | 28°F (-2°C) | 43°F (6°C) | 0.8" | 21.4 | 0.0 |
| May | 66°F (19°C) | 36°F (2°C) | 51°F (11°C) | 1.7" | 9.4 | 0.1 |
| June | 75°F (24°C) | 43°F (6°C) | 59°F (15°C) | 2.2" | 1.4 | 1.1 |
| July | 85°F (29°C) | 46°F (8°C) | 65°F (19°C) | 0.9" | 0.1 | 8.5 |
| August | 83°F (29°C) | 43°F (6°C) | 63°F (17°C) | 0.8" | 1.0 | 6.5 |
| September | 74°F (23°C) | 37°F (3°C) | 55°F (13°C) | 0.9" | 9.7 | 0.8 |
| October | 59°F (15°C) | 28°F (-2°C) | 44°F (6°C) | 0.7" | 21.8 | 0.0 |
| November | 44°F (7°C) | 19°F (-7°C) | 32°F (0°C) | 0.3" | 26.9 | 0.0 |
| December | 35°F (1°C) | 12°F (-11°C) | 23°F (-5°C) | 0.3" | 30.1 | 0.0 |
Monthly Precipitation
Average monthly rainfall
January 0.2"
3.4 days with precipitation
February 0.2"
3.9 days with precipitation
March 0.4"
4.8 days with precipitation
April 0.8"
8.4 days with precipitation
May 1.7"
11.0 days with precipitation
June 2.2"
11.7 days with precipitation
July 0.9"
6.4 days with precipitation
August 0.8"
6.6 days with precipitation
September 0.9"
5.5 days with precipitation
October 0.7"
5.9 days with precipitation
November 0.3"
4.8 days with precipitation
December 0.3"
5.1 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
September 2
50% probability date
Last Spring Freeze
June 8
50% probability date
Growing Season
86 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
7,934
Higher = more heating needed
Cooling Degree Days
118
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
What Twin Bridges's climate means for you
Twin Bridges runs 44°F a year - peaking in July, coldest in December.
- Gardeners get about 86 frost-free days, with the last spring freeze near June 8 - plan the planting calendar around it, not the regional average.
- Energy bills track 7,934 heating and 118 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: Twin Bridges, MT
An annual average temperature of 44°F, ranging from a mean daily high of 59°F to a mean daily low of 29°F is what the NOAA 1991–2020 climate normals report for Twin Bridges, Montana. July is typically the warmest month of the year, while December is the coldest. That baseline comes from station USC00248430 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.
Twin Bridges averages 9.4 inches of precipitation a year, predominantly as rainfall, and that matters as much to daily life here as temperature does. The frost-free season averages 86 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near June 8 and the first fall freeze near September 2. As for energy demand, 7,934 heating degree days and 118 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Twin Bridges scores 34/100 (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 December-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 Twin Bridges, MT? ▼
The average annual temperature in Twin Bridges, Montana is 44°F. The warmest month averages 85°F (29°C) and the coldest averages 12°F (-11°C).
How much rain does Twin Bridges get? ▼
Twin Bridges receives 9.4 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Twin Bridges? ▼
Twin Bridges has a climate comfort score of 34/100 (Below Average), milder than 1% of U.S. cities in the PlainClimate database.
When is the growing season in Twin Bridges? ▼
Twin Bridges has approximately 86 frost-free days per year, with the last spring freeze around June 8 and the first fall freeze around September 2.
How much energy does heating and cooling require in Twin Bridges? ▼
Twin Bridges has 7,934 heating degree days and 118 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 Twin Bridges climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00248430 near Twin Bridges.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00248430. 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.