Antero Rsvr, CO Climate: Temperature & Rain by Month
Annual temperature and rainfall from NOAA NCEI's 1991–2020 normals →; comfort score computed by PlainClimate
30-year climate normals (1991-2020) from Antero Rsvr's primary NOAA station, ANTERO RSVR.
The climate verdict for Antero Rsvr
Dryness leads the climate profile for Antero Rsvr, Colorado, with 10.6 inches of precipitation a year. NOAA records an annual average of 35°F. At 41/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 10% of scores.
- 35°F
- annual average temperature (NOAA normal)
- 41/100
- comfort score, above 10% of station-mapped location scores
- 10.6"
- annual precipitation · 49" snow
Antero Rsvr: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00050263 · Antero Rsvr, CO 35°F mean · 10.6" precip
TEMP-COLD · RANK-COOL · PHOTO-FINISH · PRCP-ARID · SWING-MID · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COLD 35°F
- RANK-COOL #137
- PHOTO-FINISH ≈ Walden
- PRCP-ARID 10.6"
- SWING-MID 44°F
- COMF-LOW 41/100
- LOAD-HEAT 10,756 HDD
- STN-1 USC00050263
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Walden, CO ( -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 CO station list.
- Hot Kenai, AK 36°F
- Near Little SU AT Ha…, AK 36°F
- Antero Rsvr (this station) 35°F
- Cold Boulder, CO 35°F
- Near Walden, CO 35°F
Climate Living Index · Antero Rsvr
Antero Rsvr: 6/100 · grade F
Antero Rsvr publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Antero Rsvr, not an official NOAA rating. Rankings still use Comfort Score 41/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Snowfall burden | 49.2 inches/year | 21/100 · F |
| Precipitation balance | 10.6 in · 24.4 from 35 in | 14/100 · F |
| Annual temperature balance | 35.4°F · 32.1° from 67.5°F | 0/100 · F |
| Normal heat + freeze calendar | 266 calendar days | 0/100 · F |
Antero Rsvr · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Antero Rsvr'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
- 58.1°F
- Coldest month
- 13.7°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 Antero Rsvr sits across the climate record
Three NOAA fields for Antero Rsvr's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 98%
- Among 6,861 stations, Antero Rsvr sits in the cooler third of annual means.
- Annual precipitation
- Drier than 93%
- Antero Rsvr'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 Antero Rsvr compares across U.S. station-mapped locations
Antero Rsvr's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
41 10th percentile score exceeds 10% 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
Antero Rsvr's measured station temperature trend
MethodologyAcross 56 complete annual observations from 1963 to 2024, ANTERO RSVR warmed at a fitted rate of 0.22°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Antero Rsvr primary station fitted change +0.22 °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 | 32°F (0°C) | -4°F (-20°C) | 14°F (-10°C) | 0.3" | 5.4" | 31.0 | 0.0 |
| February | 34°F (1°C) | -1°F (-18°C) | 16°F (-9°C) | 0.4" | 6.2" | 27.9 | 0.0 |
| March | 42°F (5°C) | 10°F (-12°C) | 26°F (-3°C) | 0.5" | 8.3" | 30.8 | 0.0 |
| April | 49°F (9°C) | 19°F (-7°C) | 34°F (1°C) | 0.7" | 9.3" | 29.4 | 0.0 |
| May | 59°F (15°C) | 27°F (-3°C) | 43°F (6°C) | 1.2" | 4.0" | 23.9 | 0.0 |
| June | 70°F (21°C) | 34°F (1°C) | 52°F (11°C) | 0.9" | 0.0" | 10.1 | 0.0 |
| July | 76°F (24°C) | 41°F (5°C) | 58°F (15°C) | 2.0" | 0.0" | 0.8 | 0.0 |
| August | 73°F (23°C) | 39°F (4°C) | 56°F (13°C) | 2.2" | 0.0" | 1.8 | 0.0 |
| September | 67°F (19°C) | 30°F (-1°C) | 49°F (9°C) | 1.0" | 0.4" | 17.5 | 0.0 |
| October | 55°F (13°C) | 19°F (-7°C) | 37°F (3°C) | 0.7" | 4.2" | 29.1 | 0.0 |
| November | 42°F (6°C) | 9°F (-13°C) | 26°F (-4°C) | 0.3" | 4.9" | 29.7 | 0.0 |
| December | 32°F (0°C) | -2°F (-19°C) | 15°F (-10°C) | 0.4" | 6.5" | 31.0 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 76°F around July 15, short of 90°F on every date, while 266 dates carry a normal low at or below freezing, the coldest -5°F near January 1.
The freezing stretch
The normal low stays at or below 32°F into June 3, then returns to freezing around September 12, covering 266 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 August 2, when 43% of years recorded at least a hundredth of an inch. The driest is January 5 at 11%. Summed across the calendar, that is about 75 wet dates a year.
The widest day
September 28 carries the biggest normal gap between afternoon and dawn, 37°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Antero Rsvr.
Where Antero Rsvr Stands Nationally
Winters bite deep and often: the normal nightly low dips to freezing or below on around 266 nights a year, placing this among the most frost-prone tenth of ranked stations.
Aridity defines the water calendar: about 11 inches in a normal year lands this among the driest tenth of ranked stations.
Antero Rsvr 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: 5.4"
3.2 days with precipitation
Snow: 6.2"
4.1 days with precipitation
Snow: 8.3"
5.0 days with precipitation
Snow: 9.3"
5.6 days with precipitation
Snow: 4.0"
7.1 days with precipitation
6.0 days with precipitation
11.7 days with precipitation
12.6 days with precipitation
Snow: 0.4"
6.6 days with precipitation
Snow: 4.2"
5.2 days with precipitation
Snow: 4.9"
3.9 days with precipitation
Snow: 6.5"
4.0 days with precipitation
Antero Rsvr runs a summer-peaked wet season
48% of Antero Rsvr's yearly precipitation falls in June, July and August alone, against the 25% an evenly spread year would give those three months. The wettest month is August at 2.2", on a 44.4°F seasonal spread. Warm-season convection and, across the Southwest, the North American monsoon produce this shape: rain arrives in short heavy bursts during the hottest part of the year rather than as long cool-season soaking.
- Wettest three months: August, July, May, taking 51% of the annual total between them.
- Driest month: January at 0.3".
- Winter share: 10% falls in December, January and February.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. A summer-peaked label means the June-August share reaches 35%; it describes timing across an average year, not any single season, and says nothing about how heavy an individual storm can be.
Antero Rsvr is dry, and what does fall arrives gently
Only about 75 days a year record measurable precipitation here, 21% of the calendar, and they carry 10.6" between them. At roughly 0.14 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 August at about 13 wet days; the driest is January at about 3.
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 Antero Rsvr
Antero Rsvr averages 49.2 inches of snowfall a year, with April the snowiest month on the normals, spread across roughly 21 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: 49.2 inches of depth.
- Days recording measurable snow: about 21 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 47% 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
N/A
50% probability date
Last Spring Freeze
N/A
50% probability date
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
10,756
Higher = more heating needed
Cooling Degree Days
0
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside CO closest to Antero Rsvr 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 (35°F here).
- St. Paul, AK 35°F · 0.0°F off
- Wisdom, MT 35°F · 0.2°F off
- Orr, MN 36°F · 0.2°F off
- Cora, WY 35°F · 0.3°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (10.6" here), excluding temperature-peer places.
- Escalante, UT 10.6" · 0.0" off
- Townsend, MT 10.6" · 0.0" off
- Glenns Ferry, ID 10.6" · 0.0" off
- Vernon, UT 10.6" · 0.0" off
Snow and freeze rhythm
When cold and snow define Antero Rsvr
heating led · dry · mid swing
Antero Rsvr's energy balance leans toward cold weather: 10,756 annual heating degree days against 0 for cooling. Its 44.4°F seasonal range still makes the monthly rows more useful than the annual average alone.
A frost-free growing-season length is not available for Antero Rsvr. That missing field is kept separate from the observed temperature and precipitation record rather than filled from a regional estimate.
-
1. Antero Rsvr coldest normal
January
Averaging 14°F (-10°C), this month sits below freezing for the month as a whole, not merely overnight.
-
2. Antero Rsvr typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Antero Rsvr snow peak
April
Antero Rsvr averages 49.2 inches of snow a year, with April the snowiest month on the normals.
Questions about Antero Rsvr's climate
How much snow does Antero Rsvr get? ▼
How cold does Antero Rsvr get in winter? ▼
How much energy does heating and cooling require in Antero Rsvr? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Antero Rsvr's primary station: ANTERO RSVR (USC00050263). 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 Antero Rsvr; 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 Antero Rsvr 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.