West Plum Bush Creek Bridge · Photo: Ammodramus · CC0Precipitation in Deer Trail trails that of 92% of U.S. towns: 17 inches a year
Sunny July days climb to about 89°. Expect the heaviest rain or snow in July and the lightest in January. Its January nights bite harder than in 88% of U.S. towns. Garden planting can start around May 13; autumn frost returns near October 2.
A year in Deer Trail at a glance
Each month’s typical high and low, and what it brings.
What stands out about Deer Trail’s climate
Compared with towns across the U.S., with Deer Trail’s place in Colorado beside it.
What a year in Deer Trail feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 142 frost-free days a year
In half of years the last 32° night comes by May 13 and the first by October 2. Frost and day counts come from NOAA’s station at Byers 5 Ene, CO, 10 miles from the town’s center, 100 ft lower.
The 2023 USDA map puts Deer Trail’s center in zone 5b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −13°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 43 inches of snow a winter
Snow, measured at Byers 5 Ene, CO, falls mostly in March. Precipitation (rain plus melted snow) adds up to 17 inches a year; July is the wettest month and January the driest. Rain or snow falls on about 72 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Deer Trail
91% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through April.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Byers 5 Ene, CO.
Living with Deer Trail’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
142 frost-free days in zone 5b. The last frost comes by May 13 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 2.
Months with highs of 62–84° and lows of 40° or more: May, June and September. 0.5 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Deer Trail from natural hazards, river flooding is the largest share (37%); heat waves, cold waves, winter storms and ice storms together are 6%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Deer Trail and similar climates
TownRatings has no climate map of the towns around Deer Trail yet.
Climates most like Deer Trail’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 |
|---|---|---|---|---|
| Deer Trail, CO | 14° | 89° | 17" | 43" |
| Hyde Park, UT | 14° | 89° | 16" | 44" |
| Chadron, NE | 14° | 89° | 18" | 50" |
| Belle Fourche, SD | 13° | 88° | 19" | 42" |
| Billings, MT | 15° | 89° | 14" | 48" |
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 Deer Trail averaged 1.1° warmer than the 1900s. The biggest change is in March (+2.8°).
A smaller shift than in 72% 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 Deer Trail compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Deer Trail’s place among Colorado’s.
Deer Trail weather by month
Highs, lows and precipitation from NOAA’s grid at Deer Trail’s center; snow, wet days and snow on the ground from Byers 5 Ene, CO. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 43° | 14° | 0.5" | 6.1" | 4 | 12 | 16° – 36° |
| February | 45° | 16° | 0.5" | 6.3" | 4 | 10 | 24° – 37° |
| March | 54° | 24° | 1.0" | 7.3" | 5 | 5 | 33° – 46° |
| April | 61° | 31° | 1.9" | 5.5" | 7 | 2 | 40° – 51° |
| May | 71° | 41° | 2.6" | 0.7" | 9 | 0 | 49° – 61° |
| June | 83° | 50° | 2.1" | 0.0" | 9 | 0 | 63° – 73° |
| July | 89° | 57° | 2.7" | 0.0" | 9 | 0 | 69° – 77° |
| August | 86° | 55° | 2.1" | 0.0" | 8 | 0 | 67° – 75° |
| September | 79° | 46° | 1.2" | 0.9" | 5 | 0 | 56° – 67° |
| October | 65° | 33° | 1.0" | 3.8" | 5 | 2 | 41° – 54° |
| November | 52° | 22° | 0.7" | 5.9" | 4 | 5 | 29° – 43° |
| December | 43° | 14° | 0.5" | 6.2" | 4 | 12 | 23° – 33° |
| Year | 64° | 34° | 16.8" | 42.7" | 72 | 48 |
How much a month can swing
A normal is an average. January swings the most: from 1991 to 2020 its average ranged from 16° to 36°. August is the most reliable, staying within 8°.
Where Deer Trail’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 Deer Trail’s center.
- Snow: Byers 5 Ene, CO.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Byers 5 Ene, CO, 10 miles from the town’s center, 100 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 Deer Trail’s climate
What is the weather like in Deer Trail?
A typical July afternoon reaches 89°, a January night drops to 14°, and about 43 inches of snow falls in a normal winter. Colder January nights than 88% of U.S. towns; hotter July afternoons than 73% of U.S. towns.
How cold does it get in Deer Trail in winter?
January nights average 14°. About 176 nights a year reach 32° or below and 11 reach 0° or below. In the coldest January of the last 30 years the month averaged 16°.
How much snow does Deer Trail get?
About 43 inches in a normal winter at Byers 5 Ene, CO, most of it in March, with snow on the ground about 48 days a year.
How hot does it get in Deer Trail?
July, with a typical high of 89° and a low of 57°. About 48 days a year reach 90° and 3 reach 100° (Byers 5 Ene, CO).
When is the first and last frost in Deer Trail?
In half of years the last spring frost (32°) comes by May 13 and the first fall frost by October 2, about 142 frost-free days, at Byers 5 Ene, CO.
What growing zone is Deer Trail in?
Zone 5b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −13°.
What is the best time of year to visit Deer Trail?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Deer Trail getting warmer?
Yes: 1991–2020 averaged 1.1° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 72% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Deer Trail.
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.