Climate Comfort Score
54/100
Moderate
NOAA 1991–2020 normals 48°F annual avg Public-domain federal data
Alturas Muni, CA Climate
Annual temperature, rainfall, and a comfort score, sourced from NOAA NCEI's 1991–2020 normals →
- 48°F
- Avg annual temp
- 54/100
- Comfort score
- 11.7"
- Annual precip
- 101d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Alturas Muni
Alturas Muni, California averages 48°F a year and scores 54/100 on the comfort index - moderate, milder than 27% of U.S. cities.
- 48°F
- average temperature, NOAA 1991-2020 normal
- 54/100
- comfort score, milder than 27% of U.S. cities
- 11.7"
- precipitation, annual total
- 101 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
48°F (9°C)
Avg High
63°F
Avg Low
32°F
Annual Precip
11.7"
Comfort Score
54/100
Moderate
Avg Annual Temperature
48°F
30-year mean (NOAA NCEI)
Annual Precipitation
11.7"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Alturas Muni) 54.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Alturas Muni area.
How Alturas Muni compares to every U.S. city
Alturas Muni's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
54 Top 73% higher than 27% 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 Alturas Muni
MethodologyThe chart below traces how the U.S. land temperature anomaly has moved against the global mean since 1900. For Alturas Muni, 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 | 43°F (6°C) | 21°F (-6°C) | 32°F (0°C) | 1.3" | 28.0 | 0.0 |
| February | 47°F (8°C) | 23°F (-5°C) | 35°F (2°C) | 1.1" | 25.6 | 0.0 |
| March | 53°F (12°C) | 27°F (-3°C) | 40°F (4°C) | 1.4" | 26.4 | 0.0 |
| April | 58°F (15°C) | 30°F (-1°C) | 44°F (7°C) | 1.5" | 21.3 | 0.0 |
| May | 68°F (20°C) | 37°F (3°C) | 53°F (11°C) | 1.3" | 8.7 | 0.5 |
| June | 78°F (26°C) | 42°F (6°C) | 60°F (16°C) | 0.7" | 2.1 | 3.7 |
| July | 89°F (32°C) | 47°F (8°C) | 68°F (20°C) | 0.3" | 0.0 | 17.8 |
| August | 87°F (31°C) | 44°F (7°C) | 66°F (19°C) | 0.3" | 0.4 | 13.5 |
| September | 80°F (27°C) | 37°F (3°C) | 59°F (15°C) | 0.3" | 7.8 | 4.2 |
| October | 66°F (19°C) | 29°F (-1°C) | 48°F (9°C) | 0.9" | 22.6 | 0.1 |
| November | 51°F (10°C) | 25°F (-4°C) | 38°F (3°C) | 1.2" | 24.8 | 0.0 |
| December | 41°F (5°C) | 20°F (-7°C) | 31°F (-1°C) | 1.5" | 27.8 | 0.0 |
Monthly Precipitation
Average monthly rainfall
January 1.3"
11.0 days with precipitation
February 1.1"
10.7 days with precipitation
March 1.4"
11.3 days with precipitation
April 1.5"
10.7 days with precipitation
May 1.3"
8.6 days with precipitation
June 0.7"
4.6 days with precipitation
July 0.3"
2.0 days with precipitation
August 0.3"
2.1 days with precipitation
September 0.3"
2.9 days with precipitation
October 0.9"
5.2 days with precipitation
November 1.2"
9.6 days with precipitation
December 1.5"
12.1 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
September 12
50% probability date
Last Spring Freeze
June 3
50% probability date
Growing Season
101 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
6,558
Higher = more heating needed
Cooling Degree Days
235
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
What Alturas Muni's climate means for you
Alturas Muni runs 48°F a year - peaking in July, coldest in December.
- Gardeners get about 101 frost-free days, with the last spring freeze near June 3 - plan the planting calendar around it, not the regional average.
- Energy bills track 6,558 heating and 235 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: Alturas Muni, CA
Based on station USW00094299 feeding NOAA's 1991–2020 climate normals, Alturas Muni, California averages 48°F a year, ranging from a mean daily high of 63°F to a mean daily low of 32°F. July is typically the warmest month of the year, while December is the coldest. Because these figures are thirty-year averages rather than any single year's readings, they describe the typical month, not a forecast for it.
Beyond temperature, Alturas Muni averages 11.7 inches of precipitation annually, predominantly as rainfall - a real factor for anyone planning to live, garden, or travel here. The frost-free season averages 101 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near June 3 and the first fall freeze near September 12. Turning to energy use, 6,558 heating degree days and 235 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Alturas Muni scores 54/100 (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 December-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 Alturas Muni, CA? ▼
The average annual temperature in Alturas Muni, California is 48°F. The warmest month averages 89°F (32°C) and the coldest averages 20°F (-7°C).
How much rain does Alturas Muni get? ▼
Alturas Muni receives 11.7 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Alturas Muni? ▼
Alturas Muni has a climate comfort score of 54/100 (Moderate), milder than 27% of U.S. cities in the PlainClimate database.
When is the growing season in Alturas Muni? ▼
Alturas Muni has approximately 101 frost-free days per year, with the last spring freeze around June 3 and the first fall freeze around September 12.
How much energy does heating and cooling require in Alturas Muni? ▼
Alturas Muni has 6,558 heating degree days and 235 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 Alturas Muni climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USW00094299 near Alturas Muni.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00094299. 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.