Fairmont, CA Climate: Temperature & Rain by Month
Average temperature and precipitation from NOAA NCEI 1991–2020 normals →, with a derived climate comfort score
30-year climate normals (1991-2020) from Fairmont's primary NOAA station, FAIRMONT.
The climate verdict for Fairmont
Dryness leads the climate profile for Fairmont, California, with 15.8 inches of precipitation a year. NOAA records an annual average of 62°F. It scores 83/100 for climate comfort (excellent), putting it in the top third of station-mapped location scores and exceeding 81% of them.
- 62°F
- annual average temperature (NOAA normal)
- 83/100
- comfort score, above 81% of station-mapped location scores
- 15.8"
- annual precipitation · 1" snow
- 237 days
- growing season, frost-free days
Fairmont: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00042941 · Fairmont, CA 62°F mean · 15.8" precip
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-DRY · SWING-MID · COMF-TOP · LOAD-MIX · STN-1 · BOOK-FULL
- TEMP-MILD 62°F
- RANK-UPPER #5,489
- PHOTO-FINISH ≈ Anderson
- PRCP-DRY 15.8"
- SWING-MID 35°F
- COMF-TOP 83/100
- LOAD-MIX H/C balanced
- STN-1 USC00042941
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Anderson, SC (+ 0 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every CA station list.
- Fairmont (this station) 62°F
- Hot Dequeen, AR 62°F
- Near Anderson, SC 62°F
- Near Concord Buchana…, CA 62°F
- Near Cordes, AZ 62°F
Climate Living Index · Fairmont
Fairmont: 74/100 · grade B
Fairmont publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Fairmont, not an official NOAA rating. Rankings still use Comfort Score 83/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 71 calendar days | 85/100 · A |
| Frost-free season | 237 days/year | 84/100 · B |
| Annual temperature balance | 62.0°F · 5.5° from 67.5°F | 83/100 · B |
| Snowfall burden | 1.3 inches/year | 81/100 · B |
| Precipitation balance | 15.8 in · 19.2 from 35 in | 31/100 · F |
Fairmont · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Fairmont is a temperate Köppen climate: Csa
Coldest-month mean 46.0°F and warmest-month mean 80.5°F place this station in temperate, dry-summer, hot summer climates (Csa). Class Csa is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: temperate, specifically temperate, dry-summer, hot summer.
- Köppen code
- Csa
- Group
- Temperate
- Warmest month
- 80.5°F
- Coldest month
- 46.0°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · balanced station
Where Fairmont sits across the climate record
Three NOAA fields for Fairmont's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 20% warmest
- Among 6,861 stations, Fairmont sits in the warmer third of annual means.
- Annual precipitation
- Drier than 80%
- Fairmont's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 83%
- Warmest-to-coldest month gap for Fairmont is compact versus 6,861 complete station-years.
How Fairmont compares across U.S. station-mapped locations
Fairmont's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
83 Top 19% score exceeds 81% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). Below this entry.
- 50–60: 1,329 station-mapped locations (21%). Below this entry.
- 60–70: 1,236 station-mapped locations (20%). Below this entry.
- 70–80: 650 station-mapped locations (11%). Below this entry.
- 80–90: 921 station-mapped locations (15%). This entry sits in this band.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Fairmont's measured station temperature trend
MethodologyAcross 70 complete annual observations from 1927 to 2025, FAIRMONT warmed at a fitted rate of 0.18°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Fairmont primary station fitted change +0.18 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 56°F (13°C) | 38°F (3°C) | 47°F (8°C) | 3.7" | 0.0" | 6.0 | 0.0 |
| February | 58°F (14°C) | 39°F (4°C) | 49°F (9°C) | 4.4" | 0.7" | 5.2 | 0.0 |
| March | 63°F (17°C) | 43°F (6°C) | 53°F (12°C) | 2.5" | 0.2" | 1.9 | 0.0 |
| April | 68°F (20°C) | 46°F (8°C) | 57°F (14°C) | 0.9" | 0.0" | 1.3 | 0.3 |
| May | 76°F (24°C) | 53°F (12°C) | 65°F (18°C) | 0.4" | 0.0" | 0.2 | 3.2 |
| June | 86°F (30°C) | 62°F (17°C) | 74°F (23°C) | 0.1" | 0.0" | 0.0 | 11.2 |
| July | 92°F (33°C) | 68°F (20°C) | 80°F (27°C) | 0.1" | 0.0" | 0.0 | 20.3 |
| August | 93°F (34°C) | 68°F (20°C) | 81°F (27°C) | 0.0" | 0.0" | 0.0 | 22.7 |
| September | 88°F (31°C) | 62°F (17°C) | 75°F (24°C) | 0.1" | 0.0" | 0.0 | 14.0 |
| October | 77°F (25°C) | 53°F (12°C) | 65°F (18°C) | 0.7" | 0.0" | 0.1 | 2.7 |
| November | 65°F (18°C) | 44°F (6°C) | 54°F (12°C) | 0.7" | 0.0" | 1.8 | 0.0 |
| December | 55°F (13°C) | 37°F (3°C) | 46°F (8°C) | 2.2" | 0.4" | 7.2 | 0.0 |
The year, day by day
The year in Fairmont runs from a mild 36°F around December 18 to 94°F at the peak near August 7, and the normal low never reaches freezing on any date in the record.
When the heat sits
Normal highs reach 90°F from July 2 through September 10, covering 71 dates. The broader mild season, normal highs of 70°F or more, runs April 25 to November 3.
This counts calendar dates whose 1991–2020 normal high reaches 90°F. It is a smaller number than the 90°F+ day counts in the monthly table above, which measure how often the threshold was actually crossed in a typical year. A date can average 88°F and still exceed 90°F in half of all years.
No freezing date
Not one calendar date in the 1991–2020 record carries a normal low at or below 32°F. The coldest normal low of the year is 36°F around December 18.
Where the wet dates fall
The likeliest wet date is February 20, when 26% of years recorded at least a hundredth of an inch. The driest is June 24 at 1%. Summed across the calendar, that is about 40 wet dates a year.
The widest day
September 3 carries the biggest normal gap between afternoon and dawn, 26°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Fairmont.
Where Fairmont Stands Nationally
Heat is a defining feature of the normals calendar — the normal daily high reaches 90°F on roughly 71 days a year, more than four out of five ranked stations record.
A drier-than-most normal water year — around 16 inches, below what four out of five ranked stations collect.
Fairmont earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall and snowfall
6.9 days with precipitation
Snow: 0.7"
7.2 days with precipitation
Snow: 0.2"
6.7 days with precipitation
3.5 days with precipitation
2.1 days with precipitation
0.5 days with precipitation
0.6 days with precipitation
0.4 days with precipitation
1.0 days with precipitation
1.8 days with precipitation
3.4 days with precipitation
Snow: 0.4"
5.2 days with precipitation
Fairmont's wet season runs through the cold months
December, January and February carry 65% of the year's precipitation here, while June through August contribute 1%. That is the cool-season-dominant pattern of the West Coast and the higher inland West, where storm tracks swing south in winter and summer turns dry; the thermometer meanwhile shows a 34.5°F seasonal spread.
- Wettest month
- February, 4.4"
- Driest month
- August, 0.0"
- Wettest three months
- February, January, March (67% of the year)
Shares are computed from this station's own 1991-2020 monthly precipitation normals. A cool-season label means the December-February share reaches 35%. Where snow falls, the monthly figures above report liquid-equivalent precipitation, so a wet winter month is not necessarily a rainy one.
When it rains in Fairmont, it arrives in quantity
15.8" of precipitation falls across only about 39 wet days here, averaging 0.40 inches each. Fewer days carry more water: the year's total is delivered in comparatively heavy events rather than persistent damp.
- Days with measurable precipitation
- about 39 a year, 11% of all days
- Average depth per wet day
- 0.40 inches
- Most wet days
- February, about 7
- Fewest wet days
- August, about 0
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, and a per-day average is not a forecast of any individual storm.
Snow reaches Fairmont, but rarely amounts to much
The normals record 1.3 inches of snow a year here, most likely in February. That is a real but marginal amount: enough that snow is part of the local record, not enough to define the winter.
A figure in this range usually reflects a handful of events that melt quickly rather than a season of accumulation; about 0 days a year record any measurable snow at all.
NOAA 1991-2020 normals. An average across thirty years can smooth away a single heavy winter, so a small annual figure does not mean a significant snowfall is impossible.
Frost Dates & Growing Season
First Fall Freeze
November 29
50% probability date
Last Spring Freeze
April 6
50% probability date
Growing Season
237 days
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
Nationwide similar cities
Other rankable U.S. places outside CA closest to Fairmont on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (62°F here).
- Anderson, SC 62°F · 0.0°F off
- Eupora, MS 62°F · 0.0°F off
- Lawton, OK 62°F · 0.0°F off
- Lugoff, SC 62°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (15.8" here), excluding temperature-peer places.
- Kimball, NE 15.8" · 0.0" off
- Two Rivers, AK 15.8" · 0.0" off
- Bagdad, AZ 15.9" · 0.0" off
- Casper, WY 15.9" · 0.0" off
Data-derived climate profile
How Fairmont's climate pattern fits together
mixed demand · dry · mid swing
Local precipitation is sparse in this otherwise mixed profile. The station reports 15.8 inches annually, within PlainClimate's dry band. Annual snowfall totals 1.3 inches. The monthly distribution matters because the total alone does not reveal the timing.
August and December mark the typical warm and cold ends of the calendar in Fairmont's middle-range seasonal profile. The measured spread is 34.5°F. The annual average is 62°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Heating and cooling both register in Fairmont's normal, at 2,872 and 1,805 degree days respectively. Neither total exceeds the other by more than two to one, so the record is better read as a mixed-demand calendar than as heating-led or cooling-led.
A roughly 237-day frost-free season sits inside this mixed heating-and-cooling profile. Start and end dates matter because both sides of the thermostat register during a normal year.
These labels group NOAA 1991-2020 normals from Fairmont's primary station, where heating and cooling demand are close enough that neither season sets the character on its own. On a balanced station like Fairmont, the bands are descriptive ranges rather than an official NOAA classification or a forecast.
Questions about Fairmont's climate
How much rain does Fairmont get? ▼
How many days above 90°F does Fairmont get? ▼
How much energy does heating and cooling require in Fairmont? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Fairmont's primary station: FAIRMONT (USC00042941). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. No exact Gazetteer row for Fairmont; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for Fairmont comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.