Heeney gets about 189 inches of snow a winter, more than all but 22 U.S. towns
Peak summer warmth arrives in July, with afternoons near 77°. Seasons differ by 71°, from the coldest nights to the warmest afternoons. In July, afternoons here are cooler than in 97% of U.S. towns. The heating season runs October to May: each of those months averages under 50°.
A year in Heeney at a glance
Each month’s typical high and low, and what it brings.
What stands out about Heeney’s climate
Compared with towns across the U.S., with Heeney’s place in Colorado beside it.
What a year in Heeney feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 98 frost-free days a year
In half of years the last 32° night comes by June 6 and the first by September 14. Frost and day counts come from NOAA’s station at Green Mt Dam, CO, 1.6 miles from the town’s center, 220 ft lower.
The 2023 USDA map puts Heeney’s center in zone 4b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −22°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
About 189 inches of snow a winter
Snow, measured at Vail, CO, is heaviest from January through February, about 36 inches a month. Precipitation (rain plus melted snow) adds up to 18 inches a year; April is the wettest month and June the driest. Rain or snow falls on about 117 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Heeney
Nearly all of the work is heating: a normal year has almost no cooling days. Months averaging under 55° run from September 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 Green Mt Dam, CO.
Living with Heeney’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
98 frost-free days in zone 4b. The last frost comes by Jun 6 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 14.
Months with highs of 62–84° and lows of 40° or more: July and August.
Parks & trails →Of the yearly building losses FEMA expects in Heeney from natural hazards, avalanches are the largest share (92%). Normals are averages; the hazards page covers the extremes.
Natural hazards →Heeney and similar climates
TownRatings has no climate map of the towns around Heeney yet.
Climates most like Heeney’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 |
|---|---|---|---|---|
| Heeney, CO | 6° | 77° | 18" | 189" |
| Ishpeming, MI | 5° | 77° | 33" | 197" |
| Park City, UT | 18° | 81° | 23" | 153" |
| Lewistown, MT | 12° | 82° | 18" | 112" |
| South Lake Tahoe, CA | 22° | 81° | 19" | 179" |
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 Heeney averaged 1.3° warmer than the 1900s. The biggest change is in March (+3.3°).
A smaller shift than in 53% 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 Heeney compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Heeney’s place among Colorado’s.
Heeney weather by month
Highs, lows and precipitation from NOAA’s grid at Heeney’s center; snow, wet days and snow on the ground from Vail, CO. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 30° | 6° | 1.4" | 35.3" | 12 | 12° – 23° |
| February | 33° | 9° | 1.5" | 35.7" | 12 | 16° – 27° |
| March | 43° | 17° | 1.6" | 28.2" | 10 | 25° – 36° |
| April | 50° | 24° | 1.9" | 21.2" | 9 | 32° – 42° |
| May | 61° | 32° | 1.8" | 4.8" | 9 | 41° – 50° |
| June | 71° | 39° | 1.2" | 0.6" | 7 | 51° – 60° |
| July | 77° | 44° | 1.6" | 0.0" | 10 | 57° – 64° |
| August | 75° | 43° | 1.6" | 0.0" | 11 | 56° – 62° |
| September | 68° | 36° | 1.6" | 0.9" | 9 | 47° – 55° |
| October | 55° | 26° | 1.5" | 8.6" | 7 | 34° – 45° |
| November | 41° | 16° | 1.5" | 25.9" | 10 | 19° – 36° |
| December | 30° | 7° | 1.4" | 28.0" | 11 | 14° – 25° |
| Year | 53° | 25° | 18.4" | 189.2" | 117 |
How much a month can swing
A normal is an average. November swings the most: from 1991 to 2020 its average ranged from 19° to 36°. August is the most reliable, staying within 6°.
Where Heeney’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 Heeney’s center.
- Snow: Vail, CO.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Green Mt Dam, CO, 1.6 miles from the town’s center, 220 ft lower; the nearest station that passes our checks for distance, height and agreement with the grid.
- 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 Heeney’s climate
What is the weather like in Heeney?
A typical July afternoon reaches 77°, a January night drops to 6°, and about 189 inches of snow falls in a normal winter. Colder January nights than 98% of U.S. towns; cooler July afternoons than 97% of U.S. towns.
How cold does it get in Heeney in winter?
January nights average 6°. About 235 nights a year reach 32° or below and 40 reach 0° or below. In the coldest January of the last 30 years the month averaged 12°.
How much snow does Heeney get?
About 189 inches in a normal winter at Vail, CO, heaviest from January through February, about 36 inches a month.
How hot does it get in Heeney?
July, with a typical high of 77°. 90° days are rare: none in a normal year at Green Mt Dam, CO.
When is the first and last frost in Heeney?
In half of years the last spring frost (32°) comes by June 6 and the first fall frost by September 14, about 98 frost-free days, at Green Mt Dam, CO.
What growing zone is Heeney in?
Zone 4b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −22°.
What is the best time of year to visit Heeney?
By one simple rule (highs of 62–84° and lows of 40° or more), July and August. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Heeney getting warmer?
Yes: 1991–2020 averaged 1.3° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 53% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Heeney.
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.