Parker, Colorado climate: Normal weather by month, frost dates and records
Parker's normal year runs from 14°F December nights to 88°F July afternoons. (NOAA 1991-2020 normals)
In metric: a yearly mean of 9.8°C, December lows of −10°C, July highs of 31°C.
- NOAA stationParker
- Station IDUSC00056323
- Location39.51°N 104.75°W
- Elevation5,904 ft (1,800 m)
- From the center1 miles
- Population65,473
On October 23, the normal high in Parker is 64°F and the normal low 30°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Parker.
- Jan 47° 15°
- Feb 49° 17°
- Mar 57° 24°
- Apr 64° 31°
- May 72° 40°
- Jun 83° 50°
- Jul 88° 55°
- Aug 85° 54°
- Sep 79° 45°
- Oct 67° 32°
- Nov 55° 22°
- Dec 47° 14°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Parker each month?
July is the warmest month, with normal highs of 88°F; December the coldest, with normal lows of 14°F.
| Month | High | Low | Mean | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|
| January | 47°F | 15°F | 31.0°F | – | <1 | 30 | 9 h 40 min |
| February | 49°F | 17°F | 33.1°F | – | <1 | 27 | 10 h 40 min |
| March | 57°F | 24°F | 40.8°F | – | <1 | 26 | 11 h 50 min |
| April | 64°F | 31°F | 47.7°F | – | <1 | 17 | 13 h 10 min |
| May | 72°F | 40°F | 56.3°F | – | 1 | 4 | 14 h 20 min |
| June | 83°F | 50°F | 66.5°F | – | 8 | <1 | 15 h |
| July | 88°F | 55°F | 71.5°F | – | 16 | <1 | 14 h 40 min |
| August | 85°F | 54°F | 69.4°F | – | 8 | <1 | 13 h 50 min |
| September | 79°F | 45°F | 61.9°F | – | 2 | 1 | 12 h 30 min |
| October | 67°F | 32°F | 49.7°F | – | <1 | 15 | 11 h 10 min |
| November | 55°F | 22°F | 38.5°F | – | <1 | 27 | 10 h |
| December | 47°F | 14°F | 30.5°F | – | <1 | 30 | 9 h 20 min |
| Year (annual) | 66°F | 33°F | 49.7°F | – | 35 | 177 |
The same normals in °C and millimetres
| Month | High | Low | Mean |
|---|---|---|---|
| January | 8°C | −9°C | −0.6°C |
| February | 10°C | −8°C | 0.6°C |
| March | 14°C | −4°C | 4.9°C |
| April | 18°C | 0°C | 8.7°C |
| May | 22°C | 5°C | 13.5°C |
| June | 29°C | 10°C | 19.2°C |
| July | 31°C | 13°C | 21.9°C |
| August | 30°C | 12°C | 20.8°C |
| September | 26°C | 7°C | 16.6°C |
| October | 19°C | 0°C | 9.8°C |
| November | 13°C | −5°C | 3.6°C |
| December | 8°C | −10°C | −0.8°C |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Castle Rock (11 miles away), gets 58 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00056323; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Parker?
Normal highs sit between 65°F and 85°F in May, June, September and October.
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00056323.
When is the last frost in Parker?
In Parker, the last spring frost (32°F) comes after May 9 in half of years and after May 23 in one year in ten; the first autumn frost comes before October 3 in half of years and before September 21 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- May 91 year in 10 after May 23; 9 in 10 after April 27
- First autumn frost, half of years before
- October 31 year in 10 before September 21; 9 in 10 before October 15
NOAA puts the median frost-free season at 145 days, and the season without a hard freeze (28°F) at 165 days.
A hard freeze (28°F) comes after April 29 in half of springs and before October 12 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Parker in zone 5b across its 2 ZIP code areas (5b in 80134, the largest).
Frost dates for every NOAA station in Colorado · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00056323; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
What hardiness zone is each Parker ZIP code in?
The USDA's 2023 map gives each ZIP code area one zone. Parker's 2 ZIP code areas are all in zone 5b. Each ZIP's frost dates are in the frost tool.
Source: USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; ZIP areas in the place: Census Bureau 2020 ZCTA-to-place relationship file. A ZIP area counts when at least a tenth of its land (and 0.5 km²) lies in the place.
How hot and how cold does it get in Parker?
In a normal year in Parker, 35 days a year reach 90°F and 177 nights fall to 32°F or colder.
- Days at 90°F or more
- 35a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 177a normal year
- Days that stay below freezing
- 12high of 32°F or less
Source: NOAA NCEI 1991-2020 annual normals, station USC00056323.
How sunny is Parker?
Over a year 80% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Parker, 4.8 kWh per square metre a day. September is the sunniest month (85%) and May the cloudiest (76%). Among the 459 U.S. places of 50,000 or more, that ranks tied 125th (with 50 others) in sunshine.
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 79% | 2.6 |
| February | 78% | 3.5 |
| March | 78% | 4.7 |
| April | 76% | 5.8 |
| May | 76% | 6.5 |
| June | 82% | 7.2 |
| July | 83% | 7.0 |
| August | 84% | 6.3 |
| September | 85% | 5.4 |
| October | 82% | 4.0 |
| November | 81% | 2.9 |
| December | 79% | 2.3 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Parker need?
A normal year in Parker brings 6,048 heating degree days, 13% more than the median U.S. place (5,373), and 510 cooling degree days, 44% fewer than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,541 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,056 | 0 |
| February | 893 | 0 |
| March | 752 | 0 |
| April | 520 | 1 |
| May | 282 | 12 |
| June | 59 | 104 |
| July | 5 | 206 |
| August | 13 | 150 |
| September | 130 | 37 |
| October | 475 | 1 |
| November | 795 | 0 |
| December | 1,069 | 0 |
| Year (annual) | 6,048 | 510 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00056323. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
How does Parker's climate compare?
Parker is warmer than 71 of the other 124 places with their own NOAA record in Colorado. Across the 7,247 U.S. stations with normals, its annual mean of 49.7°F is warmer than 39%.
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers.
Which places near Parker share this climate record?
4 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- The Pinery, CO11,740 people · 5 mi S
- Stonegate, CO9,164 people · 3 mi NW
- Stepping Stone, CO3,079 people · 4 mi W
- Brick Center, CO82 people · 16 mi E
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Parker's climate
What is the coldest month in Parker?
December, with a normal high of 47°F and a normal low of 14°F. The warmest is July (88°F by day, 55°F at night).
Does it snow in Parker?
Yes. NOAA publishes no 1991-2020 snowfall normal for Parker's NOAA station; the nearest record that keeps one, Castle Rock (11 miles away), records 58 inches of snow in a normal year.
What plant hardiness zone is Parker in?
The USDA's 2023 map puts Parker in zone 5b across its 2 ZIP code areas (5b in 80134, the largest).
How late can frost come in Parker?
In half of years the last 32°F night comes after May 9; in one year in ten it comes after May 23. Waiting until May 23 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Colorado climateThe statewide normals and every place in the state
- Centennial, CO6 miles from this station, 50.2°F a year
- Cherry Creek, CO9 miles from this station, 50.8°F a year
- Castle Rock, CO11 miles from this station, 49.6°F a year
- Elizabeth, CO11 miles from this station, 48.2°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made