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Fairmont, CA Climate

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

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

Fairmont, California has an average annual temperature of 62°F and a climate comfort score of 82/100 (Excellent). Annual precipitation totals 15.8", including 1.3" of snow. Based on NOAA 30-year normals (1991–2020).

Avg Temperature

62°F (17°C)

Avg High

73°F

Avg Low

51°F

Annual Precip

15.8"

Annual Snow

1.3"

Comfort Score

82/100

Excellent

Climate Comfort Score

82/100

Excellent

Avg Annual Temperature

62°F

30-year mean (NOAA NCEI)

Annual Precipitation

15.8"

Plus 1.3" of snow

Comfort score vs national 100-point ceiling (Fairmont) 82.0%
National median (≈55)

PlainClimate composite — temperature mildness, humidity, precipitation, extreme-weather frequency. Excellent for the Fairmont area.

Warming context for Fairmont

Methodology

How the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Fairmont 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 56°F (13°C) 38°F (3°C) 47°F (8°C)
February 58°F (14°C) 39°F (4°C) 49°F (9°C)
March 63°F (17°C) 43°F (6°C) 53°F (12°C)
April 68°F (20°C) 46°F (8°C) 57°F (14°C)
May 76°F (24°C) 53°F (12°C) 65°F (18°C)
June 86°F (30°C) 62°F (17°C) 74°F (23°C)
July 92°F (33°C) 68°F (20°C) 80°F (27°C)
August 93°F (34°C) 68°F (20°C) 81°F (27°C)
September 88°F (31°C) 62°F (17°C) 75°F (24°C)
October 77°F (25°C) 53°F (12°C) 65°F (18°C)
November 65°F (18°C) 44°F (6°C) 54°F (12°C)
December 55°F (13°C) 37°F (3°C) 46°F (8°C)

Monthly Precipitation

Average monthly rainfall and snowfall

January 3.7"

6.9 days with precipitation

February 4.4"

Snow: 0.7"

7.2 days with precipitation

March 2.5"

Snow: 0.2"

6.7 days with precipitation

April 0.9"

3.5 days with precipitation

May 0.4"

2.1 days with precipitation

June 0.1"

0.5 days with precipitation

July 0.1"

0.6 days with precipitation

August 0.0"

0.4 days with precipitation

September 0.1"

1.0 days with precipitation

October 0.7"

1.8 days with precipitation

November 0.7"

3.4 days with precipitation

December 2.2"

Snow: 0.4"

5.2 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

November 29

50% probability date

Last Spring Freeze

April 6

50% probability date

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

2,872

Higher = more heating needed

Cooling Degree Days

1,805

Higher = more cooling needed

Warmest Month

August

Coldest Month

December

Related Data

Climate Guides

Climate Insight: Fairmont, CA

The NOAA 1991–2020 climate normals describe Fairmont, California as a location with an annual average temperature of 62°F, ranging from a mean daily high of 73°F to a mean daily low of 51°F. August is typically the warmest month of the year, while December is the coldest. These thirty-year averages, computed from station USC00042941, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.

Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Fairmont receives roughly 15.8 inches of precipitation each year, with 1.3 inches typically falling as snow. Growing-season length varies with elevation and microclimate, with the last spring freeze near April 6 and the first fall freeze near November 29. For energy use, 2,872 heating degree days and 1,805 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Fairmont scores 82/100 (Excellent), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Use the monthly tables above to plan around specific windows — shoulder seasons for mild highs and lows, peak summer for August-driven heat, or deep winter for December-driven cold. All figures here are thirty-year averages: any single year may run warmer, wetter, drier, or cooler than the normal, so treat them as planning guidance rather than forecasts.

Frequently Asked Questions

What is the average temperature in Fairmont, CA?
The average annual temperature in Fairmont, California is 62°F. The warmest month averages 93°F (34°C) and the coldest averages 37°F (3°C).
How much rain does Fairmont get?
Fairmont receives 15.8 inches of precipitation annually, including 1.3 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Fairmont?
Fairmont has a climate comfort score of 82/100 (Excellent). This score considers temperature mildness, humidity, precipitation, and extreme weather frequency.
When is the growing season in Fairmont?
Growing season data is not available for Fairmont.
How much energy does heating and cooling require in Fairmont?
Fairmont has 2,872 heating degree days and 1,805 cooling degree days annually. Higher heating degree days indicate greater winter energy demand, while higher cooling degree days indicate greater summer cooling needs.
Where does this Fairmont climate data come from?
All climate data comes from NOAA U.S. Climate Normals v1.0.1, covering the 30-year period from 1991 to 2020. Data is collected from weather station USC00042941. These 30-year averages are the standard reference for typical weather conditions.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00042941. For informational purposes only.

Related

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial