Cottonwood Weir, 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 Cottonwood Weir's primary NOAA station, COTTONWOOD WEIR.
The climate verdict for Cottonwood Weir
Cottonwood Weir, Utah has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 53°F. At 54/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 31% of scores.
- 53°F
- average temperature, NOAA 1991-2020 normal
- 54/100
- comfort score, above 31% of station-mapped location scores
- 24.3"
- annual precipitation · 82" snow
- 176 days
- frost-free growing season
Cottonwood Weir: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00421759 · Cottonwood Weir, UT 53°F mean · 24.3" precip
TEMP-COOL · RANK-MID · PHOTO-FINISH · PRCP-DRY · SWING-WIDE · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 53°F
- RANK-MID #3,705
- PHOTO-FINISH ≈ Grand Junction…
- PRCP-DRY 24.3"
- SWING-WIDE 49°F
- COMF-LOW 54/100
- LOAD-HEAT 5,509 HDD
- STN-1 USC00421759
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Grand Junction Walker Fld, CO (+ 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.
- Cottonwood Weir (this station) 53°F
- Cold Scott City, KS 53°F
- Hot Oakley, KS 53°F
- Near Grand Junction…, CO 53°F
- Near Lamar, CO 53°F
Climate Living Index · Cottonwood Weir
Cottonwood Weir: 48/100 · grade D
Cottonwood Weir publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Cottonwood Weir, not an official NOAA rating. Rankings still use Comfort Score 54/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 24.3 in · 10.7 from 35 in | 63/100 · C |
| Annual temperature balance | 53.2°F · 14.3° from 67.5°F | 53/100 · D |
| Normal heat + freeze calendar | 145 calendar days | 50/100 · D |
| Frost-free season | 176 days/year | 47/100 · D |
| Snowfall burden | 81.9 inches/year | 6/100 · F |
Cottonwood Weir · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Cottonwood Weir is a continental Köppen climate: Dsa
Coldest-month mean 30.4°F and warmest-month mean 79.1°F place this station in continental, dry-summer, hot summer climates (Dsa). Class Dsa is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, dry-summer, hot summer.
- Köppen code
- Dsa
- Group
- Continental
- Warmest month
- 79.1°F
- Coldest month
- 30.4°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 Cottonwood Weir sits across the climate record
Three NOAA fields for Cottonwood Weir's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 54th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- 33rd percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- Wider than 76%
- Warmest-to-coldest month gap for Cottonwood Weir is large versus 6,861 complete station-years.
How Cottonwood Weir compares across U.S. station-mapped locations
Cottonwood Weir's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
54 31st percentile score exceeds 31% 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
Cottonwood Weir's measured station temperature trend
MethodologyAcross 57 complete annual observations from 1949 to 2025, COTTONWOOD WEIR warmed at a fitted rate of 0.30°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Cottonwood Weir primary station fitted change +0.30 °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 | 38°F (3°C) | 23°F (-5°C) | 30°F (-1°C) | 2.2" | 17.0" | 26.6 | 0.0 |
| February | 44°F (7°C) | 27°F (-3°C) | 36°F (2°C) | 2.3" | 18.4" | 20.4 | 0.0 |
| March | 54°F (12°C) | 34°F (1°C) | 44°F (7°C) | 2.7" | 7.6" | 12.5 | 0.0 |
| April | 61°F (16°C) | 40°F (4°C) | 50°F (10°C) | 3.3" | 5.6" | 5.9 | 0.0 |
| May | 71°F (21°C) | 48°F (9°C) | 59°F (15°C) | 2.8" | 0.3" | 0.7 | 0.3 |
| June | 82°F (28°C) | 57°F (14°C) | 70°F (21°C) | 1.4" | 0.0" | 0.0 | 7.1 |
| July | 91°F (33°C) | 68°F (20°C) | 79°F (26°C) | 0.6" | 0.0" | 0.0 | 21.3 |
| August | 89°F (31°C) | 66°F (19°C) | 77°F (25°C) | 0.9" | 0.0" | 0.0 | 17.2 |
| September | 79°F (26°C) | 56°F (14°C) | 68°F (20°C) | 1.6" | 0.0" | 0.0 | 2.0 |
| October | 64°F (18°C) | 43°F (6°C) | 54°F (12°C) | 2.1" | 1.5" | 3.1 | 0.0 |
| November | 49°F (10°C) | 32°F (0°C) | 40°F (5°C) | 2.1" | 8.2" | 16.2 | 0.0 |
| December | 38°F (3°C) | 23°F (-5°C) | 31°F (-1°C) | 2.4" | 23.3" | 26.2 | 0.0 |
The year, day by day
Cottonwood Weir works both ends of the calendar. Normal highs climb to 92°F by July 22 and hold at or above 90°F on 33 dates, then normal lows drop to freezing or below on 112 dates, bottoming at 22°F around December 24.
When the heat sits
Normal highs reach 90°F from July 10 through August 11, covering 33 dates. The broader mild season, normal highs of 70°F or more, runs May 15 to October 4.
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 March 4, then returns to freezing around November 14, covering 112 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 13, when 32% of years recorded at least a hundredth of an inch. The driest is July 10 at 10%. Summed across the calendar, that is about 89 wet dates a year.
The widest day
June 15 carries the biggest normal gap between afternoon and dawn, 25°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Cottonwood Weir.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 17.0"
9.2 days with precipitation
Snow: 18.4"
8.3 days with precipitation
Snow: 7.6"
8.9 days with precipitation
Snow: 5.6"
9.9 days with precipitation
Snow: 0.3"
9.2 days with precipitation
5.1 days with precipitation
3.2 days with precipitation
4.7 days with precipitation
6.0 days with precipitation
Snow: 1.5"
7.6 days with precipitation
Snow: 8.2"
8.1 days with precipitation
Snow: 23.3"
8.8 days with precipitation
Cottonwood Weir spreads its precipitation across the year
Neither half of the year dominates here: June through August take 12% of the annual total and December through February 28%, with neither reaching the 35% that would mark a distinct wet season. Cottonwood Weir has no dry season to plan around, though it does carry a wide 48.7°F gap between its warmest and coldest month.
The gap between the wettest and driest month still matters: April averages 3.3" and July 0.6". The three wettest months together take 36% 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.
How Cottonwood Weir's precipitation splits across the calendar
About 89 days a year record measurable precipitation here, carrying 24.3" between them, or roughly 0.27 inches on a typical wet day. That sits in the middle band: neither the many-light-days pattern of the Pacific Northwest and the Great Lakes, nor the few-heavy-events pattern of the Gulf and the desert Southwest.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year and say nothing about the heaviest single storm on record.
Winter brings real snow to Cottonwood Weir
Cottonwood Weir averages 81.9 inches of snowfall a year, with December the snowiest month on the normals, spread across roughly 20 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: 81.9 inches of depth.
- Days recording measurable snow: about 20 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 34% 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
October 22
50% probability date
Last Spring Freeze
April 29
50% probability date
Growing Season
176 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
5,509
Higher = more heating needed
Cooling Degree Days
1,223
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside UT closest to Cottonwood Weir 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 (53°F here).
- Alton, KS 53°F · 0.0°F off
- Bandon, OR 53°F · 0.0°F off
- Dayville, OR 53°F · 0.0°F off
- Farmington, NM 53°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (24.3" here), excluding temperature-peer places.
- Red Lake Falls, MN 24.3" · 0.0" off
- Goodridge, MN 24.3" · 0.0" off
- Menard, TX 24.3" · 0.0" off
- Pickstown, SD 24.4" · 0.0" off
Snow and freeze rhythm
When cold and snow define Cottonwood Weir
heating led · moderate · mid swing
Cottonwood Weir's energy balance leans toward cold weather: 5,509 annual heating degree days against 1,223 for cooling. Its 48.7°F seasonal range still makes the monthly rows more useful than the annual average alone.
Cottonwood Weir's frost-free season lasts about 176 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
-
1. Cottonwood Weir coldest normal
January
The monthly mean of 30°F (-1°C) sits near freezing, so cold nights and above-freezing afternoons share the same month.
-
2. Cottonwood Weir typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Cottonwood Weir snow peak
December
Cottonwood Weir averages 81.9 inches of snow a year, with December the snowiest month on the normals.
Questions about Cottonwood Weir's climate
How much snow does Cottonwood Weir get? ▼
How many days above 90°F does Cottonwood Weir get? ▼
How much energy does heating and cooling require in Cottonwood Weir? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Cottonwood Weir's primary station: COTTONWOOD WEIR (USC00421759). 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 Cottonwood Weir; 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 Cottonwood Weir 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.