Climate Comfort Score
44/100
Moderate
NOAA 1991–2020 normals 41°F annual avg Public-domain federal data
Gibson Dam, MT Climate
Explore average temperature, rainfall, and comfort score sourced from NOAA NCEI's 1991–2020 climate normals →
- 41°F
- Avg annual temp
- 44/100
- Comfort score
- 16.6"
- Annual precip
- 88d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Gibson Dam
Gibson Dam, Montana averages 41°F a year and scores 44/100 on the comfort index - moderate, milder than 8% of U.S. cities.
- 41°F
- annual average temperature (NOAA normal)
- 44/100
- comfort score, milder than 8% of U.S. cities
- 16.6"
- precipitation, annual total
- 88 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
41°F (5°C)
Avg High
54°F
Avg Low
27°F
Annual Precip
16.6"
Comfort Score
44/100
Moderate
Avg Annual Temperature
41°F
30-year mean (NOAA NCEI)
Annual Precipitation
16.6"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Gibson Dam) 44.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Gibson Dam area.
How Gibson Dam compares to every U.S. city
Gibson Dam's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
44 Top 92% higher than 8% 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 Gibson Dam
MethodologyHow the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Gibson Dam 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 | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 36°F (2°C) | 12°F (-11°C) | 24°F (-4°C) | 0.7" | 28.3 | 0.0 |
| February | 36°F (2°C) | 12°F (-11°C) | 24°F (-4°C) | 0.9" | 26.5 | 0.0 |
| March | 43°F (6°C) | 19°F (-7°C) | 31°F (-1°C) | 0.8" | 28.2 | 0.0 |
| April | 50°F (10°C) | 25°F (-4°C) | 38°F (3°C) | 1.6" | 24.6 | 0.0 |
| May | 59°F (15°C) | 33°F (0°C) | 46°F (8°C) | 2.9" | 13.4 | 0.0 |
| June | 67°F (20°C) | 39°F (4°C) | 53°F (12°C) | 3.1" | 1.9 | 0.0 |
| July | 79°F (26°C) | 45°F (7°C) | 62°F (16°C) | 1.1" | 0.2 | 2.6 |
| August | 78°F (26°C) | 43°F (6°C) | 60°F (16°C) | 1.3" | 0.6 | 2.1 |
| September | 68°F (20°C) | 36°F (2°C) | 52°F (11°C) | 1.3" | 6.1 | 0.2 |
| October | 54°F (12°C) | 29°F (-2°C) | 41°F (5°C) | 1.1" | 20.0 | 0.0 |
| November | 42°F (6°C) | 20°F (-6°C) | 31°F (0°C) | 0.8" | 25.0 | 0.0 |
| December | 35°F (1°C) | 13°F (-10°C) | 24°F (-5°C) | 0.8" | 29.0 | 0.0 |
Monthly Precipitation
Average monthly rainfall
January 0.7"
4.8 days with precipitation
February 0.9"
6.1 days with precipitation
March 0.8"
6.7 days with precipitation
April 1.6"
7.5 days with precipitation
May 2.9"
9.9 days with precipitation
June 3.1"
10.9 days with precipitation
July 1.1"
6.3 days with precipitation
August 1.3"
5.9 days with precipitation
September 1.3"
6.5 days with precipitation
October 1.1"
5.4 days with precipitation
November 0.8"
5.0 days with precipitation
December 0.8"
5.1 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
September 8
50% probability date
Last Spring Freeze
June 12
50% probability date
Growing Season
88 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
8,977
Higher = more heating needed
Cooling Degree Days
56
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
What Gibson Dam's climate means for you
Gibson Dam runs 41°F a year - peaking in July, coldest in December.
- Gardeners get about 88 frost-free days, with the last spring freeze near June 12 - plan the planting calendar around it, not the regional average.
- Energy bills track 8,977 heating and 56 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: Gibson Dam, MT
Gibson Dam, Montana runs an annual average of 41°F, ranging from a mean daily high of 54°F to a mean daily low of 27°F, per NOAA's 1991–2020 climate normals. July is typically the warmest month of the year, while December is the coldest. Drawn from station USC00243489, these thirty-year averages smooth out year-to-year swings into a baseline for what a typical month looks like here.
Gibson Dam averages 16.6 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 88 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near June 12 and the first fall freeze near September 8. As for energy demand, 8,977 heating degree days and 56 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Gibson Dam scores 44/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Shoulder seasons bring the mildest highs and lows in the monthly tables above, summer brings July-driven heat, and winter brings December-driven cold - use that rhythm for planning. These figures are thirty-year averages rather than forecasts, so a specific year may still run warmer, cooler, wetter, or drier than what's shown.
Frequently Asked Questions
What is the average temperature in Gibson Dam, MT? ▼
The average annual temperature in Gibson Dam, Montana is 41°F. The warmest month averages 79°F (26°C) and the coldest averages 12°F (-11°C).
How much rain does Gibson Dam get? ▼
Gibson Dam receives 16.6 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Gibson Dam? ▼
Gibson Dam has a climate comfort score of 44/100 (Moderate), milder than 8% of U.S. cities in the PlainClimate database.
When is the growing season in Gibson Dam? ▼
Gibson Dam has approximately 88 frost-free days per year, with the last spring freeze around June 12 and the first fall freeze around September 8.
How much energy does heating and cooling require in Gibson Dam? ▼
Gibson Dam has 8,977 heating degree days and 56 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 Gibson Dam climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00243489 near Gibson Dam.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00243489. 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.