Fairfield, UT Climate: Temperature & Rain by Month
Temperature and precipitation from NOAA NCEI 1991–2020 normals →, plus PlainClimate's derived comfort score
30-year climate normals (1991-2020) from Fairfield's primary NOAA station, FAIRFIELD.
The climate verdict for Fairfield
Dryness leads the climate profile for Fairfield, Utah, with 12.5 inches of precipitation a year. NOAA records an annual average of 48°F. At 49/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 18% of scores.
- 48°F
- annual average temperature (NOAA normal)
- 49/100
- comfort score, above 18% of station-mapped location scores
- 12.5"
- annual precipitation · 34" snow
- 106 days
- growing season, frost-free days
Fairfield: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00422696 · Fairfield, UT 48°F mean · 12.5" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-DRY · SWING-MID · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 48°F
- RANK-COOL #2,058
- PHOTO-FINISH ≈ Benton
- PRCP-DRY 12.5"
- SWING-MID 44°F
- COMF-LOW 49/100
- LOAD-HEAT 6,713 HDD
- STN-1 USC00422696
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Benton, PA (+ 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 UT station list.
- Fairfield (this station) 48°F
- Hot Superior, MT 48°F
- Near Benton, PA 48°F
- Near Cottonwood, ID 48°F
- Near Ridgway, PA 48°F
Climate Living Index · Fairfield
Fairfield: 17/100 · grade F
Fairfield publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Fairfield, not an official NOAA rating. Rankings still use Comfort Score 49/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Snowfall burden | 33.6 inches/year | 35/100 · F |
| Annual temperature balance | 47.6°F · 19.9° from 67.5°F | 30/100 · F |
| Precipitation balance | 12.5 in · 22.5 from 35 in | 20/100 · F |
| Frost-free season | 106 days/year | 1/100 · F |
| Normal heat + freeze calendar | 233 calendar days | 0/100 · F |
Fairfield · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Fairfield is a continental Köppen climate: Dfb
Coldest-month mean 26.3°F and warmest-month mean 70.6°F place this station in continental, no dry season, warm summer climates (Dfb). Class Dfb is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, no dry season, warm summer.
- Köppen code
- Dfb
- Group
- Continental
- Warmest month
- 70.6°F
- Coldest month
- 26.3°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 · heating-led station
Where Fairfield sits across the climate record
Three NOAA fields for Fairfield's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 70%
- Among 6,861 stations, Fairfield sits in the cooler third of annual means.
- Annual precipitation
- Drier than 89%
- Fairfield's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- 55th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Fairfield compares across U.S. station-mapped locations
Fairfield's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
49 18th percentile score exceeds 18% 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%). This entry sits in this band.
- 50–60: 1,329 station-mapped locations (21%). Above this entry.
- 60–70: 1,236 station-mapped locations (20%). Above this entry.
- 70–80: 650 station-mapped locations (11%). Above this entry.
- 80–90: 921 station-mapped locations (15%). Above this entry.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Fairfield's measured station temperature trend
MethodologyAcross 38 complete annual observations from 1956 to 2024, FAIRFIELD warmed at a fitted rate of 0.15°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Fairfield primary station fitted change +0.15 °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 | 39°F (4°C) | 13°F (-10°C) | 26°F (-3°C) | 1.3" | 10.7" | 29.9 | 0.0 |
| February | 45°F (7°C) | 18°F (-8°C) | 31°F (0°C) | 1.3" | 5.9" | 26.5 | 0.0 |
| March | 56°F (13°C) | 25°F (-4°C) | 40°F (5°C) | 1.2" | 3.5" | 26.1 | 0.0 |
| April | 63°F (17°C) | 30°F (-1°C) | 46°F (8°C) | 1.2" | 1.4" | 19.2 | 0.0 |
| May | 72°F (22°C) | 37°F (3°C) | 54°F (12°C) | 1.4" | 0.1" | 9.1 | 0.4 |
| June | 83°F (28°C) | 44°F (7°C) | 63°F (17°C) | 0.8" | 0.0" | 1.4 | 6.7 |
| July | 90°F (32°C) | 51°F (11°C) | 71°F (21°C) | 0.7" | 0.0" | 0.1 | 18.8 |
| August | 89°F (31°C) | 49°F (10°C) | 69°F (21°C) | 0.7" | 0.0" | 0.3 | 14.2 |
| September | 80°F (27°C) | 40°F (5°C) | 60°F (16°C) | 0.8" | 0.0" | 5.7 | 2.4 |
| October | 67°F (19°C) | 29°F (-2°C) | 48°F (9°C) | 1.1" | 0.7" | 21.5 | 0.0 |
| November | 52°F (11°C) | 20°F (-7°C) | 36°F (2°C) | 0.8" | 3.4" | 26.9 | 0.0 |
| December | 40°F (5°C) | 13°F (-10°C) | 27°F (-3°C) | 1.3" | 7.9" | 30.2 | 0.0 |
The year, day by day
Fairfield works both ends of the calendar. Normal highs climb to 91°F by July 22 and hold at or above 90°F on 29 dates, then normal lows drop to freezing or below on 204 dates, bottoming at 12°F around December 22.
When the heat sits
Normal highs reach 90°F from July 12 through August 9, covering 29 dates. The broader mild season, normal highs of 70°F or more, runs May 11 to October 8.
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.
The freezing stretch
The normal low stays at or below 32°F into April 26, then returns to freezing around October 6, covering 204 dates in all.
Derived from the normal daily minimum. This is a different measure from the 50%-probability frost dates shown elsewhere on this page, which come from NOAA’s frost product.
Where the wet dates fall
The likeliest wet date is April 17, when 29% of years recorded at least a hundredth of an inch. The driest is June 27 at 14%. Summed across the calendar, that is about 79 wet dates a year.
The widest day
September 26 carries the biggest normal gap between afternoon and dawn, 40°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Fairfield.
Where Fairfield Stands Nationally
Winters bite deep and often: the normal nightly low dips to freezing or below on around 204 nights a year, placing this among the most frost-prone tenth of ranked stations.
Day-to-night contrast is extreme by national standards — the widest normal daily swing reaches about 40°F, sharper than nine in ten ranked stations see.
Fairfield 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
Snow: 10.7"
7.5 days with precipitation
Snow: 5.9"
7.4 days with precipitation
Snow: 3.5"
8.0 days with precipitation
Snow: 1.4"
8.9 days with precipitation
Snow: 0.1"
7.4 days with precipitation
4.4 days with precipitation
5.0 days with precipitation
6.4 days with precipitation
4.9 days with precipitation
Snow: 0.7"
5.7 days with precipitation
Snow: 3.4"
6.4 days with precipitation
Snow: 7.9"
6.7 days with precipitation
Fairfield spreads its precipitation across the year
Neither half of the year dominates here: June through August take 17% of the annual total and December through February 31%, with neither reaching the 35% that would mark a distinct wet season. Fairfield has no dry season to plan around, though it does carry a 44.3°F seasonal spread.
The gap between the wettest and driest month still matters: May averages 1.4" and August 0.7". The three wettest months together take 32% of the year, against the 25% a perfectly flat distribution would give them.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. "Spread across the year" means neither the June-August nor the December-February share reaches 35%; it describes an average year, not the variability of any single one.
Fairfield is dry, and what does fall arrives gently
Only about 79 days a year record measurable precipitation here, 22% of the calendar, and they carry 12.5" between them. At roughly 0.16 inches on an average wet day, this is not the damp drizzle of a marine climate; it is an arid record in which precipitation is both uncommon and light when it appears.
The wettest month by count is April at about 9 wet days; the driest is June at about 4.
A low per-event average in a dry record is a statement about typical days only. Arid regions can still take a large share of a year's total from a single convective storm, which a normal cannot show.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, not the extremes within it.
Winter brings real snow to Fairfield
Fairfield averages 33.6 inches of snowfall a year, with January the snowiest month on the normals, spread across roughly 17 days that record measurable snow. That is depth accumulating on the ground, which is why it can exceed the annual precipitation figure: precipitation counts the liquid the snow melts down to, and fresh snow is mostly air.
- Annual snowfall: 33.6 inches of depth.
- Days recording measurable snow: about 17 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 27% of the year's precipitation.
NOAA 1991-2020 normals. The ten-to-one ratio is a convention, not a measurement: real ratios vary with temperature, so treat the share as an order of magnitude rather than an exact split.
Frost Dates & Growing Season
First Fall Freeze
September 16
50% probability date
Last Spring Freeze
June 2
50% probability date
Growing Season
106 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
6,713
Higher = more heating needed
Cooling Degree Days
406
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside UT closest to Fairfield 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 (48°F here).
- Bend, OR 48°F · 0.0°F off
- Benton, PA 48°F · 0.0°F off
- Bonesteel, SD 48°F · 0.0°F off
- Bonners Ferry, ID 48°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (12.5" here), excluding temperature-peer places.
- Harlem, MT 12.5" · 0.0" off
- Wilbur, WA 12.5" · 0.0" off
- Brady, MT 12.5" · 0.0" off
- Redrock, NM 12.5" · 0.0" off
Snow and freeze rhythm
When cold and snow define Fairfield
heating led · dry · mid swing
Fairfield's energy balance leans toward cold weather: 6,713 annual heating degree days against 406 for cooling. Its 44.3°F seasonal range still makes the monthly rows more useful than the annual average alone.
Only about 106 days are frost-free in a normal year. That short interval is consistent with the cold-season signal, but the measure does not predict the exact first or last freeze in any one year.
-
1. Fairfield coldest normal
January
The monthly mean of 26°F (-3°C) sits near freezing, so cold nights and above-freezing afternoons share the same month.
-
2. Fairfield typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Fairfield snow peak
January
Fairfield averages 33.6 inches of snow a year, with January the snowiest month on the normals.
Questions about Fairfield's climate
How much snow does Fairfield get? ▼
How many days above 90°F does Fairfield get? ▼
How much energy does heating and cooling require in Fairfield? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Fairfield's primary station: FAIRFIELD (USC00422696). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The 2024 Census Gazetteer identifies the exact name-and-state match as an incorporated place (GEOID 4924410). Match rule for Fairfield: exact normalized name + state only, no fuzzy expansion, so nearby differently spelled facilities stay unmatched.
On this page every temperature, precipitation, and derived score for Fairfield 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.