Climate Comfort Score
44/100
Moderate
Pulled from NOAA NCEI 1991–2020 normals →: average temperature, precipitation, and comfort score
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.
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
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Butte Bert Mooney area.
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
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
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.
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 32°F (0°C) | 8°F (-13°C) | 20°F (-7°C) | 0.4" | 30.5 | 0.0 |
| February | 35°F (1°C) | 10°F (-12°C) | 22°F (-5°C) | 0.4" | 27.3 | 0.0 |
| March | 44°F (7°C) | 19°F (-7°C) | 32°F (0°C) | 0.6" | 29.6 | 0.0 |
| April | 51°F (11°C) | 26°F (-3°C) | 39°F (4°C) | 1.3" | 24.8 | 0.0 |
| May | 61°F (16°C) | 34°F (1°C) | 48°F (9°C) | 2.0" | 12.0 | 0.0 |
| June | 70°F (21°C) | 41°F (5°C) | 56°F (13°C) | 2.5" | 2.4 | 0.4 |
| July | 81°F (27°C) | 46°F (8°C) | 64°F (18°C) | 1.2" | 0.2 | 4.1 |
| August | 80°F (27°C) | 44°F (7°C) | 62°F (17°C) | 1.3" | 0.7 | 2.6 |
| September | 69°F (21°C) | 37°F (3°C) | 53°F (12°C) | 1.1" | 8.7 | 0.3 |
| October | 54°F (12°C) | 27°F (-3°C) | 41°F (5°C) | 0.8" | 24.2 | 0.0 |
| November | 40°F (5°C) | 16°F (-9°C) | 28°F (-2°C) | 0.6" | 28.6 | 0.0 |
| December | 31°F (-1°C) | 7°F (-14°C) | 19°F (-7°C) | 0.5" | 30.5 | 0.0 |
Average monthly rainfall
6.8 days with precipitation
7.4 days with precipitation
8.8 days with precipitation
11.2 days with precipitation
13.0 days with precipitation
13.7 days with precipitation
8.7 days with precipitation
7.7 days with precipitation
6.9 days with precipitation
8.2 days with precipitation
7.8 days with precipitation
7.2 days with precipitation
First Fall Freeze
September 5
50% probability date
Last Spring Freeze
June 13
50% probability date
Growing Season
84 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.
These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.
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.
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00024135. For informational purposes only.
Read our methodology - how this data is sourced, computed, and verified.
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.