PlainClimate
NOAA 1991–2020 normals 47°F annual avg Public-domain federal data

Bigfork, MT Climate

Temperature, precipitation, and comfort score from NOAA NCEI 1991–2020 normals →

47°F
Avg annual temp
64/100
Comfort score
21.4"
Annual precip
167d
Growing season

30-year climate normals from 1 weather station (1991-2020).

The climate verdict for Bigfork

Bigfork, Montana averages 47°F a year and scores 64/100 on the comfort index - good, milder than 51% of U.S. cities.

47°F
average temperature, NOAA 1991-2020 normal
64/100
comfort score, milder than 51% of U.S. cities
21.4"
annual precipitation
167 days
frost-free growing season

Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.

Avg Temperature

47°F (8°C)

Avg High

55°F

Avg Low

39°F

Annual Precip

21.4"

Comfort Score

64/100

Good

Climate Comfort Score

64/100

Good

Avg Annual Temperature

47°F

30-year mean (NOAA NCEI)

Annual Precipitation

21.4"

Liquid-equivalent total

Comfort score vs national 100-point ceiling (Bigfork) 64.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Bigfork area.

How Bigfork compares to every U.S. city

Bigfork's comfort score vs. all U.S. cities

PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals

64 Top 49% higher than 51% of 6,915 US cities

0–10: 0 US cities (0%). Below this entry. 10–20: 0 US cities (0%). Below this entry. 20–30: 58 US cities (1%). Below this entry. 30–40: 439 US cities (6%). Below this entry. 40–50: 1,302 US cities (19%). Below this entry. 50–60: 1,433 US cities (21%). Below this entry. 60–70: 1,357 US cities (20%). This entry sits in this band. 70–80: 1,102 US cities (16%). Above this entry. 80–90: 778 US cities (11%). Above this entry. 90–100: 420 US cities (6%). Above this entry. This city 0 100 every U.S. city, bucketed by value

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 Bigfork

Methodology

How the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Bigfork captures average conditions across the spread shown, the most recent decade is warmer than the 30-year mean.

Warming context, U.S. vs global, with Paris reference lines Anomaly chart from 1900 to 2024. Local series shows warming of 0.11 °C per decade versus a global rate of 0.11 °C per decade (ratio 1.00). Paris Agreement thresholds at 1.5 and 2.0 °C are dashed. -1.0°C -0.5°C +0.0°C +0.5°C +1.0°C +1.5°C +2.0°C +2.5°C Paris 1.5°C Paris 2.0°C 1900192019401960198020002020
  • 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
Sources: NOAA NCEI, NASA GISTEMP. Paris thresholds per IPCC AR6 WG1.

Monthly Temperatures

Average daily high and low temperatures by month

Month Avg High Avg Low Mean
January 34°F (1°C) 25°F (-4°C) 30°F (-1°C)
February 37°F (3°C) 26°F (-4°C) 31°F (0°C)
March 45°F (7°C) 30°F (-1°C) 37°F (3°C)
April 53°F (12°C) 35°F (2°C) 44°F (7°C)
May 63°F (17°C) 43°F (6°C) 53°F (12°C)
June 70°F (21°C) 49°F (10°C) 60°F (15°C)
July 80°F (27°C) 55°F (13°C) 68°F (20°C)
August 79°F (26°C) 54°F (12°C) 67°F (19°C)
September 69°F (21°C) 47°F (8°C) 58°F (15°C)
October 55°F (13°C) 38°F (3°C) 47°F (8°C)
November 42°F (5°C) 32°F (0°C) 37°F (3°C)
December 34°F (1°C) 26°F (-3°C) 30°F (-1°C)

Monthly Precipitation

Average monthly rainfall

January 1.7"

9.9 days with precipitation

February 1.0"

7.6 days with precipitation

March 1.3"

8.5 days with precipitation

April 1.8"

8.9 days with precipitation

May 2.5"

9.6 days with precipitation

June 3.2"

11.1 days with precipitation

July 1.3"

5.7 days with precipitation

August 1.1"

5.2 days with precipitation

September 1.7"

6.2 days with precipitation

October 2.4"

8.3 days with precipitation

November 1.7"

9.6 days with precipitation

December 1.6"

9.7 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

October 15

50% probability date

Last Spring Freeze

May 1

50% probability date

Growing Season

167 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

6,877

Higher = more heating needed

Cooling Degree Days

249

Higher = more cooling needed

Warmest Month

July

Coldest Month

January

What Bigfork's climate means for you

Bigfork runs 47°F a year - peaking in July, coldest in January.

  • Gardeners get about 167 frost-free days, with the last spring freeze near May 1 - plan the planting calendar around it, not the regional average.
  • Energy bills track 6,877 heating and 249 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: Bigfork, MT

In Bigfork, Montana, the NOAA 1991–2020 climate normals put the annual average temperature at 47°F, ranging from a mean daily high of 55°F to a mean daily low of 39°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USC00240755, these numbers smooth out year-to-year noise into a working baseline for a typical month.

Anyone planning to live, garden, or travel in Bigfork should weigh precipitation alongside temperature: the annual average runs 21.4 inches, predominantly as rainfall. The frost-free season averages 167 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 1 and the first fall freeze near October 15. And on the energy front, 6,877 heating degree days and 249 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Bigfork scores 64/100 (Good), 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 Bigfork, MT?
The average annual temperature in Bigfork, Montana is 47°F. The warmest month averages 80°F (27°C) and the coldest averages 25°F (-4°C).
How much rain does Bigfork get?
Bigfork receives 21.4 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Bigfork?
Bigfork has a climate comfort score of 64/100 (Good), milder than 51% of U.S. cities in the PlainClimate database.
When is the growing season in Bigfork?
Bigfork has approximately 167 frost-free days per year, with the last spring freeze around May 1 and the first fall freeze around October 15.
How much energy does heating and cooling require in Bigfork?
Bigfork has 6,877 heating degree days and 249 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 Bigfork climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00240755 near Bigfork.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00240755. For informational purposes only.

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.