Photo: Jeffrey Beall · CC BY-SA 3.0Redstone gets about 171 inches of snow a winter, more than all but 34 U.S. towns
In July the day’s top temperature is typically 79°. A year here swings 65° from midwinter lows to midsummer highs. Summers stay cool: July afternoons here are cooler than in 94% of U.S. towns. From June to September, highs of 70–79° make it easy to spend the day outdoors.
A year in Redstone at a glance
Each month’s typical high and low, and what it brings.
What stands out about Redstone’s climate
Compared with towns across the U.S., with Redstone’s place in Colorado beside it.
What a year in Redstone feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 113 frost-free days a year
In half of years the last 32° night comes by June 2 and the first by September 23. Frost and day counts come from Aspen 1sw, CO, 21 miles away.
The 2023 USDA map puts Redstone’s center in zone 5b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −14°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
About 171 inches of snow a winter
Snow, measured at Aspen 1sw, CO, falls mostly in January, February, March and December. Precipitation (rain plus melted snow) adds up to 22 inches a year; April is the wettest month and June the driest. Rain or snow falls on about 133 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Redstone
Nearly all of the work is heating: a normal year has almost no cooling days. Months averaging under 55° run from October through May.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Aspen 1sw, CO.
Living with Redstone’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
113 frost-free days in zone 5b. The last frost comes by Jun 2 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Sep 23.
Months with highs of 62–84° and lows of 40° or more: June, July, August and September.
Parks & trails →Of the yearly building losses FEMA expects in Redstone from natural hazards, avalanches are the largest share (75%). Normals are averages; the hazards page covers the extremes.
Natural hazards →Redstone and similar climates
TownRatings has no climate map of the towns around Redstone yet.
Climates most like Redstone’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Redstone, CO | 14° | 79° | 22" | 171" |
| Park City, UT | 18° | 81° | 23" | 153" |
| South Lake Tahoe, CA | 22° | 81° | 19" | 179" |
| Lewistown, MT | 12° | 82° | 18" | 112" |
| Ishpeming, MI | 5° | 77° | 33" | 197" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Redstone averaged 1.7° warmer than the 1900s. The biggest change is in March (+3.1°).
A bigger shift than in 73% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Redstone compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Redstone’s place among Colorado’s.
Redstone weather by month
Highs, lows and precipitation from NOAA’s grid at Redstone’s center; snow, wet days and snow on the ground from Aspen 1sw, CO. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 34° | 14° | 1.9" | 28.1" | 13 | 31 | 18° – 29° |
| February | 37° | 17° | 1.8" | 28.3" | 13 | 29 | 23° – 33° |
| March | 45° | 24° | 1.9" | 26.9" | 11 | 30 | 30° – 40° |
| April | 52° | 29° | 2.2" | 20.9" | 13 | 18 | 37° – 47° |
| May | 63° | 38° | 2.0" | 7.0" | 11 | 3 | 45° – 54° |
| June | 73° | 46° | 1.1" | 0.4" | 7 | 0 | 55° – 65° |
| July | 79° | 51° | 1.8" | 0.0" | 11 | 0 | 61° – 71° |
| August | 77° | 50° | 1.8" | 0.0" | 13 | 0 | 60° – 68° |
| September | 70° | 42° | 2.0" | 1.0" | 10 | 0 | 51° – 60° |
| October | 57° | 32° | 2.0" | 10.2" | 9 | 5 | 40° – 50° |
| November | 43° | 22° | 1.8" | 20.5" | 10 | 21 | 25° – 40° |
| December | 34° | 14° | 1.7" | 27.5" | 12 | 31 | 20° – 29° |
| Year | 55° | 31° | 21.9" | 170.8" | 133 | 168 |
How much a month can swing
A normal is an average. November swings the most: from 1991 to 2020 its average ranged from 25° to 40°. August is the most reliable, staying within 8°.
Where Redstone’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Redstone’s center.
- Snow: Aspen 1sw, CO.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Aspen 1sw, CO, 21 miles from the town’s center, 940 ft higher; no station nearby passes every check; this is the nearest one in the same valley, flagged above.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Redstone’s climate
What is the weather like in Redstone?
A typical July afternoon reaches 79°, a January night drops to 14°, and about 171 inches of snow falls in a normal winter. Colder January nights than 87% of U.S. towns; cooler July afternoons than 94% of U.S. towns.
How cold does it get in Redstone in winter?
January nights average 14°. About 210 nights a year reach 32° or below and 14 reach 0° or below. In the coldest January of the last 30 years the month averaged 18°.
How much snow does Redstone get?
About 171 inches in a normal winter at Aspen 1sw, CO, most of it in January, February, March and December, with snow on the ground about 168 days a year.
How hot does it get in Redstone?
July, with a typical high of 79°. 90° days are rare: none in a normal year at Aspen 1sw, CO.
When is the first and last frost in Redstone?
In half of years the last spring frost (32°) comes by June 2 and the first fall frost by September 23, about 113 frost-free days, at Aspen 1sw, CO.
What growing zone is Redstone in?
Zone 5b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −14°.
What is the best time of year to visit Redstone?
By one simple rule (highs of 62–84° and lows of 40° or more), June, July, August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Redstone getting warmer?
Yes: 1991–2020 averaged 1.7° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 73% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Redstone.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.