Rosette, 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 Rosette's primary NOAA station, ROSETTE.
The climate verdict for Rosette
Dryness leads the climate profile for Rosette, Utah, with 11.9 inches of precipitation a year. NOAA records an annual average of 47°F. At 52/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 24% of scores.
- 47°F
- annual average temperature (NOAA normal)
- 52/100
- comfort score, above 24% of station-mapped location scores
- 11.9"
- annual precipitation
- 134 days
- growing season, frost-free days
Rosette: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00427408 · Rosette, UT 47°F mean · 11.9" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-ARID · SWING-WIDE · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 47°F
- RANK-COOL #1,852
- PHOTO-FINISH ≈ Vernal
- PRCP-ARID 11.9"
- SWING-WIDE 47°F
- COMF-LOW 52/100
- LOAD-HEAT 7,102 HDD
- STN-1 USC00427408
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Vernal, UT ( -0.1 °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.
- Rosette (this station) 47°F
- Cold Vernal, UT 47°F
- Hot Massadona, CO 47°F
- Near Traverse City C…, MI 47°F
- Near Lakeport, NH 47°F
Climate Living Index · Rosette
Rosette: 25/100 · grade F
Rosette publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Rosette, not an official NOAA rating. Rankings still use Comfort Score 52/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 171 calendar days | 31/100 · F |
| Annual temperature balance | 47.0°F · 20.5° from 67.5°F | 27/100 · F |
| Precipitation balance | 11.9 in · 23.1 from 35 in | 18/100 · F |
| Frost-free season | 134 days/year | 15/100 · F |
Rosette · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Rosette's normals sit in a dry climate class: BSk
Precipitation is low relative to temperature but above true desert thresholds: cold semi-arid steppe (BSk). Class BSk is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: dry (arid or semi-arid), specifically cold semi-arid steppe.
- Köppen code
- BSk
- Group
- Dry (arid or semi-arid)
- Warmest month
- 72.3°F
- Coldest month
- 25.1°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 Rosette sits across the climate record
Three NOAA fields for Rosette's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 73%
- Among 6,861 stations, Rosette sits in the cooler third of annual means.
- Annual precipitation
- Drier than 90%
- Rosette's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- 69th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Rosette compares across U.S. station-mapped locations
Rosette's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
52 24th percentile score exceeds 24% 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%). This entry sits in this band.
- 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
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 35°F (1°C) | 16°F (-9°C) | 25°F (-4°C) | 1.2" | 30.8 | 0.0 |
| February | 39°F (4°C) | 19°F (-7°C) | 29°F (-2°C) | 0.9" | 26.8 | 0.0 |
| March | 48°F (9°C) | 27°F (-3°C) | 38°F (3°C) | 0.8" | 24.8 | 0.0 |
| April | 55°F (13°C) | 33°F (0°C) | 44°F (7°C) | 1.1" | 16.5 | 0.0 |
| May | 65°F (18°C) | 41°F (5°C) | 53°F (12°C) | 1.5" | 5.6 | 0.1 |
| June | 75°F (24°C) | 50°F (10°C) | 62°F (17°C) | 1.0" | 0.9 | 1.2 |
| July | 86°F (30°C) | 59°F (15°C) | 72°F (22°C) | 0.8" | 0.0 | 11.7 |
| August | 85°F (29°C) | 57°F (14°C) | 71°F (22°C) | 0.8" | 0.0 | 7.9 |
| September | 74°F (24°C) | 48°F (9°C) | 61°F (16°C) | 1.1" | 1.3 | 0.7 |
| October | 60°F (16°C) | 35°F (2°C) | 48°F (9°C) | 0.9" | 12.3 | 0.0 |
| November | 45°F (7°C) | 25°F (-4°C) | 35°F (2°C) | 0.6" | 25.8 | 0.0 |
| December | 35°F (2°C) | 17°F (-8°C) | 26°F (-3°C) | 1.3" | 30.5 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 88°F around July 25, short of 90°F on every date, while 171 dates carry a normal low at or below freezing, the coldest 15°F near January 1.
The freezing stretch
The normal low stays at or below 32°F into April 12, then returns to freezing around October 25, covering 171 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 May 21, when 31% of years recorded at least a hundredth of an inch. The driest is July 1 at 15%. Summed across the calendar, that is about 79 wet dates a year.
The widest day
August 20 carries the biggest normal gap between afternoon and dawn, 28°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Rosette.
Where Rosette Stands Nationally
A drier-than-most normal water year — around 12 inches, below what four out of five ranked stations collect.
Rosette earns one nationally notable standing (outer quintile) against 6,860 NOAA 1991–2020 normals stations, middle-of-the-pack metrics stay silent here.
Monthly Precipitation
Average monthly rainfall
8.1 days with precipitation
6.8 days with precipitation
6.2 days with precipitation
6.9 days with precipitation
9.8 days with precipitation
5.8 days with precipitation
5.4 days with precipitation
5.4 days with precipitation
5.3 days with precipitation
5.1 days with precipitation
5.3 days with precipitation
8.7 days with precipitation
Rosette spreads its precipitation across the year
Neither half of the year dominates here: June through August take 22% of the annual total and December through February 28%, with neither reaching the 35% that would mark a distinct wet season. Rosette has no dry season to plan around, though it does carry a wide 47.2°F gap between its warmest and coldest month.
The gap between the wettest and driest month still matters: May averages 1.5" and November 0.6". The three wettest months together take 33% 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.
Rosette 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 11.9" between them. At roughly 0.15 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 May at about 10 wet days; the driest is October at about 5.
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.
Frost Dates & Growing Season
First Fall Freeze
October 2
50% probability date
Last Spring Freeze
May 21
50% probability date
Growing Season
134 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
7,102
Higher = more heating needed
Cooling Degree Days
570
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside UT closest to Rosette 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 (47°F here).
- Alma, MI 47°F · 0.0°F off
- Anamosa, IA 47°F · 0.0°F off
- Audubon, IA 47°F · 0.0°F off
- Big Timber, MT 47°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (11.9" here), excluding temperature-peer places.
- Rudyard, MT 11.9" · 0.0" off
- Pinedale, WY 11.9" · 0.0" off
- Fullerton, CA 11.9" · 0.0" off
- Oceanside, CA 11.9" · 0.0" off
Scarce-water calendar
Where Rosette's limited precipitation lands
heating led · dry · mid swing
Rosette's energy balance leans toward cold weather: 7,102 annual heating degree days against 570 for cooling. Its 47.2°F seasonal range still makes the monthly rows more useful than the annual average alone.
Only about 134 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.
July and January mark the typical warm and cold ends of the calendar in Rosette's middle-range seasonal profile. The measured spread is 47.2°F. The annual average is 47°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Rosette's cold-season load does not imply a wet climate. Annual precipitation is 11.9 inches, which places the station in PlainClimate's dry range. Snowfall is not added to the interpretation because its annual value is missing. The snowfall and rainfall fields should be read separately rather than inferred from temperature.
Rosette wettest normal
May
May concentrates the scarce annual total (11.9 inches).
Rosette driest normal
November
November is typically driest; arid stations are defined by when water is absent, not by a four-season grid.
Questions about Rosette's climate
How dry is Rosette? ▼
How cold does Rosette get in winter? ▼
How much energy does heating and cooling require in Rosette? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Rosette's primary station: ROSETTE (USC00427408). 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 Rosette; 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 Rosette 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.