Photo: Ilike2read · CC BY-SA 3.0Precipitation in Roxborough Park trails that of 90% of U.S. towns: 19 inches a year
In July the day’s top temperature is typically 86°. From frosty January to warm July, readings climb 68°. Winter nights are cold: in January they are colder than in 68% of U.S. towns. For walks and days out, May, June, August and September bring highs of 69–84°.
A year in Roxborough Park at a glance
Each month’s typical high and low, and what it brings.
What stands out about Roxborough Park’s climate
Compared with towns across the U.S., with Roxborough Park’s place in Colorado beside it.
What a year in Roxborough Park feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 136 frost-free days a year
In half of years the last 32° night comes by May 16 and the first by October 1. Day counts come from NOAA’s station at Strontia Springs Dam, CO, 2.4 miles from the town’s center, 180 ft lower; frost dates and degree days from Roxborough Sp, CO, 1.2 miles away.
The 2023 USDA map puts Roxborough Park’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 62 inches of snow a winter
Snow, measured at Kassler, CO, falls mostly in December. Precipitation (rain plus melted snow) adds up to 19 inches a year; April is the wettest month and January the driest. Rain or snow falls on about 81 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Roxborough Park
92% 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 Roxborough Sp, CO.
Living with Roxborough Park’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
136 frost-free days in zone 5b. The last frost comes by May 16 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 1.
Months with highs of 62–84° and lows of 40° or more: May, June, August and September. 27 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Roxborough Park from natural hazards, wildfire is the largest share (48%); heat waves, cold waves, winter storms and ice storms together are 3%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Roxborough Park and similar climates
TownRatings has no climate map of the towns around Roxborough Park yet.
Climates most like Roxborough Park’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 |
|---|---|---|---|---|
| Roxborough Park, CO | 18° | 86° | 19" | 62" |
| Pocatello, ID | 19° | 87° | 15" | 64" |
| Doney Park, AZ | 17° | 86° | 16" | 52" |
| Livingston, MT | 17° | 85° | 14" | 63" |
| Rapid Valley, SD | 14° | 86° | 19" | 49" |
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 Roxborough Park averaged 1.2° warmer than the 1900s. The biggest change is in March (+3.0°).
A smaller shift than in 64% 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 Roxborough Park compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Roxborough Park’s place among Colorado’s.
Roxborough Park weather by month
Highs, lows and precipitation from NOAA’s grid at Roxborough Park’s center; snow, wet days and snow on the ground from Kassler, CO. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 46° | 18° | 0.7" | 8.7" | 4 | 10 | 24° – 38° |
| February | 47° | 20° | 0.9" | 10.4" | 5 | 9 | 28° – 40° |
| March | 55° | 26° | 1.8" | 9.6" | 6 | 6 | 35° – 46° |
| April | 60° | 32° | 2.6" | 8.5" | 8 | 3 | 41° – 52° |
| May | 69° | 41° | 2.5" | 1.2" | 10 | 1 | 49° – 59° |
| June | 81° | 50° | 1.9" | 0.0" | 8 | 0 | 61° – 70° |
| July | 86° | 57° | 2.0" | 0.0" | 9 | 0 | 68° – 75° |
| August | 84° | 55° | 2.1" | 0.0" | 10 | 0 | 65° – 73° |
| September | 77° | 47° | 1.5" | 0.6" | 7 | 0 | 56° – 66° |
| October | 65° | 35° | 1.3" | 3.7" | 6 | 2 | 42° – 55° |
| November | 54° | 26° | 1.0" | 7.9" | 5 | 5 | 31° – 47° |
| December | 46° | 18° | 0.8" | 11.6" | 4 | 11 | 25° – 36° |
| Year | 64° | 35° | 19.1" | 62.2" | 81 | 46 |
How much a month can swing
A normal is an average. November swings the most: from 1991 to 2020 its average ranged from 31° to 47°. July is the most reliable, staying within 7°.
Where Roxborough Park’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 Roxborough Park’s center.
- Snow: Kassler, CO.
- Frost dates, heating and cooling: Roxborough Sp, CO, 1.2 miles away.
- Freezing nights, 90° and 100° days: Strontia Springs Dam, CO, 2.4 miles from the town’s center, 180 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 Roxborough Park’s climate
What is the weather like in Roxborough Park?
A typical July afternoon reaches 86°, a January night drops to 18°, and about 62 inches of snow falls in a normal winter. Colder January nights than 68% of U.S. towns; hotter July afternoons than 57% of U.S. towns.
How cold does it get in Roxborough Park in winter?
December nights average 18°. About 207 nights a year reach 32° or below and 13 reach 0° or below. In the coldest December of the last 30 years the month averaged 25°.
How much snow does Roxborough Park get?
About 62 inches in a normal winter at Kassler, CO, most of it in December, with snow on the ground about 46 days a year.
How hot does it get in Roxborough Park?
July, with a typical high of 86° and a low of 57°. About 19 days a year reach 90° (Roxborough Sp, CO).
When is the first and last frost in Roxborough Park?
In half of years the last spring frost (32°) comes by May 16 and the first fall frost by October 1, about 136 frost-free days, at Roxborough Sp, CO.
What growing zone is Roxborough Park 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 Roxborough Park?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Roxborough Park getting warmer?
Yes: 1991–2020 averaged 1.2° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 64% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Roxborough Park.
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.