Climate Comfort Score
44/100
Moderate
NOAA 1991–2020 normals 45°F annual avg Public-domain federal data
Tiber Dam, MT Climate
Pulled from NOAA NCEI 1991–2020 normals →: average temperature, precipitation, and comfort score
- 45°F
- Avg annual temp
- 44/100
- Comfort score
- 10.2"
- Annual precip
- 130d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Tiber Dam
Tiber Dam, Montana averages 45°F a year and scores 44/100 on the comfort index - moderate, milder than 8% of U.S. cities.
- 45°F
- average temperature, NOAA 1991-2020 normal
- 44/100
- comfort score, milder than 8% of U.S. cities
- 10.2"
- precipitation, annual total
- 130 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
45°F (7°C)
Avg High
59°F
Avg Low
31°F
Annual Precip
10.2"
Comfort Score
44/100
Moderate
Avg Annual Temperature
45°F
30-year mean (NOAA NCEI)
Annual Precipitation
10.2"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Tiber Dam) 44.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Tiber Dam area.
How Tiber Dam compares to every U.S. city
Tiber 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 Tiber Dam
MethodologyThe chart below traces how the U.S. land temperature anomaly has moved against the global mean since 1900. For Tiber Dam, the NOAA 1991-2020 normal captures average conditions across that spread - notably, the most recent decade runs warmer than the 30-year mean itself.
- 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 | 31°F (0°C) | 8°F (-13°C) | 20°F (-7°C) | 0.4" | 29.6 | 0.0 |
| February | 37°F (3°C) | 12°F (-11°C) | 24°F (-4°C) | 0.2" | 27.1 | 0.0 |
| March | 48°F (9°C) | 20°F (-7°C) | 34°F (1°C) | 0.3" | 27.9 | 0.0 |
| April | 59°F (15°C) | 30°F (-1°C) | 45°F (7°C) | 1.0" | 18.1 | 0.0 |
| May | 69°F (20°C) | 40°F (4°C) | 54°F (12°C) | 1.4" | 5.2 | 0.4 |
| June | 76°F (25°C) | 48°F (9°C) | 62°F (17°C) | 2.3" | 0.2 | 2.0 |
| July | 85°F (30°C) | 53°F (12°C) | 69°F (21°C) | 1.1" | 0.0 | 10.8 |
| August | 85°F (29°C) | 51°F (11°C) | 68°F (20°C) | 1.1" | 0.0 | 9.2 |
| September | 74°F (23°C) | 43°F (6°C) | 58°F (15°C) | 0.9" | 2.3 | 2.2 |
| October | 60°F (15°C) | 32°F (0°C) | 46°F (8°C) | 0.8" | 16.2 | 0.1 |
| November | 44°F (7°C) | 21°F (-6°C) | 33°F (0°C) | 0.5" | 24.8 | 0.0 |
| December | 34°F (1°C) | 12°F (-11°C) | 23°F (-5°C) | 0.4" | 29.6 | 0.0 |
Monthly Precipitation
Average monthly rainfall
January 0.4"
2.7 days with precipitation
February 0.2"
2.3 days with precipitation
March 0.3"
2.5 days with precipitation
April 1.0"
5.5 days with precipitation
May 1.4"
6.9 days with precipitation
June 2.3"
8.4 days with precipitation
July 1.1"
4.0 days with precipitation
August 1.1"
4.1 days with precipitation
September 0.9"
4.4 days with precipitation
October 0.8"
4.0 days with precipitation
November 0.5"
2.9 days with precipitation
December 0.4"
2.6 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
September 23
50% probability date
Last Spring Freeze
May 16
50% probability date
Growing Season
130 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
7,753
Higher = more heating needed
Cooling Degree Days
353
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Tiber Dam's climate means for you
Tiber Dam runs 45°F a year - peaking in July, coldest in January.
- Gardeners get about 130 frost-free days, with the last spring freeze near May 16 - plan the planting calendar around it, not the regional average.
- Energy bills track 7,753 heating and 353 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: Tiber Dam, MT
In Tiber Dam, Montana, the NOAA 1991–2020 climate normals put the annual average temperature at 45°F, ranging from a mean daily high of 59°F to a mean daily low of 31°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USC00248233, these numbers smooth out year-to-year noise into a working baseline for a typical month.
Anyone planning to live, garden, or travel in Tiber Dam should weigh precipitation alongside temperature: the annual average runs 10.2 inches, predominantly as rainfall. The frost-free season averages 130 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 16 and the first fall freeze near September 23. And on the energy front, 7,753 heating degree days and 353 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Tiber Dam scores 44/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above turn that into a planning tool: expect the mildest highs and lows in the shoulder seasons, July-driven heat at the peak of summer, and January-driven cold at the depth of winter. Every number here is a thirty-year average, not a forecast, so any given year can and does run warmer, cooler, wetter, or drier than the normal.
Frequently Asked Questions
What is the average temperature in Tiber Dam, MT? ▼
The average annual temperature in Tiber Dam, Montana is 45°F. The warmest month averages 85°F (30°C) and the coldest averages 8°F (-13°C).
How much rain does Tiber Dam get? ▼
Tiber Dam receives 10.2 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Tiber Dam? ▼
Tiber 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 Tiber Dam? ▼
Tiber Dam has approximately 130 frost-free days per year, with the last spring freeze around May 16 and the first fall freeze around September 23.
How much energy does heating and cooling require in Tiber Dam? ▼
Tiber Dam has 7,753 heating degree days and 353 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 Tiber Dam climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00248233 near Tiber Dam.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00248233. 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.