PlainClimate
NOAA 1991–2020 normals 40°F annual avg Public-domain federal data

Butte Bert Mooney, MT Climate

Pulled from NOAA NCEI 1991–2020 normals →: average temperature, precipitation, and comfort score

40°F
Avg annual temp
44/100
Comfort score
12.8"
Annual precip
84d
Growing season

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

The climate verdict for Butte Bert Mooney

Butte Bert Mooney, Montana averages 40°F a year and scores 44/100 on the comfort index - moderate, milder than 8% of U.S. cities.

40°F
average temperature, NOAA 1991-2020 normal
44/100
comfort score, milder than 8% of U.S. cities
12.8"
yearly precipitation total
84 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

40°F (5°C)

Avg High

54°F

Avg Low

26°F

Annual Precip

12.8"

Comfort Score

44/100

Moderate

Climate Comfort Score

44/100

Moderate

Avg Annual Temperature

40°F

30-year mean (NOAA NCEI)

Annual Precipitation

12.8"

Liquid-equivalent total

Comfort score vs national 100-point ceiling (Butte Bert Mooney) 44.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Butte Bert Mooney area.

How Butte Bert Mooney compares to every U.S. city

Butte Bert Mooney'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

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%). This entry sits in this band. 50–60: 1,433 US cities (21%). Above this entry. 60–70: 1,357 US cities (20%). Above this entry. 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 Butte Bert Mooney

Methodology

How the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Butte Bert Mooney 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 32°F (0°C) 8°F (-13°C) 20°F (-7°C)
February 35°F (1°C) 10°F (-12°C) 22°F (-5°C)
March 44°F (7°C) 19°F (-7°C) 32°F (0°C)
April 51°F (11°C) 26°F (-3°C) 39°F (4°C)
May 61°F (16°C) 34°F (1°C) 48°F (9°C)
June 70°F (21°C) 41°F (5°C) 56°F (13°C)
July 81°F (27°C) 46°F (8°C) 64°F (18°C)
August 80°F (27°C) 44°F (7°C) 62°F (17°C)
September 69°F (21°C) 37°F (3°C) 53°F (12°C)
October 54°F (12°C) 27°F (-3°C) 41°F (5°C)
November 40°F (5°C) 16°F (-9°C) 28°F (-2°C)
December 31°F (-1°C) 7°F (-14°C) 19°F (-7°C)

Monthly Precipitation

Average monthly rainfall

January 0.4"

6.8 days with precipitation

February 0.4"

7.4 days with precipitation

March 0.6"

8.8 days with precipitation

April 1.3"

11.2 days with precipitation

May 2.0"

13.0 days with precipitation

June 2.5"

13.7 days with precipitation

July 1.2"

8.7 days with precipitation

August 1.3"

7.7 days with precipitation

September 1.1"

6.9 days with precipitation

October 0.8"

8.2 days with precipitation

November 0.6"

7.8 days with precipitation

December 0.5"

7.2 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

September 5

50% probability date

Last Spring Freeze

June 13

50% probability date

Growing Season

84 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

9,129

Higher = more heating needed

Cooling Degree Days

83

Higher = more cooling needed

Warmest Month

July

Coldest Month

December

What Butte Bert Mooney's climate means for you

Butte Bert Mooney runs 40°F a year - peaking in July, coldest in December.

  • Gardeners get about 84 frost-free days, with the last spring freeze near June 13 - plan the planting calendar around it, not the regional average.
  • Energy bills track 9,129 heating and 83 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: Butte Bert Mooney, MT

An annual average temperature of 40°F, ranging from a mean daily high of 54°F to a mean daily low of 26°F is what the NOAA 1991–2020 climate normals report for Butte Bert Mooney, Montana. July is typically the warmest month of the year, while December is the coldest. That baseline comes from station USW00024135 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.

Beyond temperature, Butte Bert Mooney averages 12.8 inches of precipitation annually, predominantly as rainfall - a real factor for anyone planning to live, garden, or travel here. The frost-free season averages 84 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near June 13 and the first fall freeze near September 5. Turning to energy use, 9,129 heating degree days and 83 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Butte Bert Mooney scores 44/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. For planning purposes, look to the monthly tables above: shoulder seasons bring the mildest highs and lows, summer brings July-driven heat, and deep winter brings December-driven cold. Treat every figure here as a thirty-year average rather than a forecast - individual years routinely run warmer, cooler, wetter, or drier than the normal.

Frequently Asked Questions

What is the average temperature in Butte Bert Mooney, MT?
The average annual temperature in Butte Bert Mooney, Montana is 40°F. The warmest month averages 81°F (27°C) and the coldest averages 7°F (-14°C).
How much rain does Butte Bert Mooney get?
Butte Bert Mooney receives 12.8 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Butte Bert Mooney?
Butte Bert Mooney 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 Butte Bert Mooney?
Butte Bert Mooney has approximately 84 frost-free days per year, with the last spring freeze around June 13 and the first fall freeze around September 5.
How much energy does heating and cooling require in Butte Bert Mooney?
Butte Bert Mooney has 9,129 heating degree days and 83 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 Butte Bert Mooney climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USW00024135 near Butte Bert Mooney.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00024135. 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.