Massadona (3 mi E), Colorado climate: Climate normals at a NOAA weather station
Massadona (3 mi E)'s normal year runs from 12°F January nights to 88°F July afternoons, with 14.4 inches of precipitation and 51 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 8.4°C, January lows of −11°C, July highs of 31°C, 365 mm of precipitation a year.
- NOAA stationMassadona (3 mi E)
- Station IDUSC00055422
- Location40.28°N 108.61°W
- Elevation6,140 ft (1,872 m)
On October 23, the normal high in Massadona (3 mi E) is 59°F and the normal low 33°F, and the chance of measurable rain or snow is 21%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Massadona (3 mi E).
- Jan 33° 12°
- Feb 39° 15°
- Mar 51° 26°
- Apr 59° 32°
- May 69° 41°
- Jun 82° 50°
- Jul 88° 57°
- Aug 86° 55°
- Sep 77° 46°
- Oct 62° 35°
- Nov 47° 24°
- Dec 34° 12°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like at Massadona (3 mi E) each month?
July is the warmest month, with normal highs of 88°F; January the coldest, with normal lows of 12°F. The most precipitation falls in October (1.63 in), the least in June (0.85 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 33°F | 12°F | 22.4°F | 1.09 | 13.3 | 8 | <1 | 31 | 9 h 40 min |
| February | 39°F | 15°F | 27.1°F | 1.03 | 8.1 | 7 | <1 | 28 | 10 h 40 min |
| March | 51°F | 26°F | 38.3°F | 1.25 | 4.6 | 7 | <1 | 26 | 11 h 50 min |
| April | 59°F | 32°F | 45.6°F | 1.32 | 2.9 | 9 | <1 | 18 | 13 h 10 min |
| May | 69°F | 41°F | 55.0°F | 1.59 | 1.0 | 8 | <1 | 4 | 14 h 20 min |
| June | 82°F | 50°F | 65.7°F | 0.85 | 0.0 | 6 | 3 | <1 | 15 h |
| July | 88°F | 57°F | 72.6°F | 0.97 | 0.0 | 5 | 14 | <1 | 14 h 50 min |
| August | 86°F | 55°F | 70.4°F | 0.96 | 0.0 | 7 | 6 | <1 | 13 h 50 min |
| September | 77°F | 46°F | 61.4°F | 1.56 | 0.0 | 7 | 1 | 1 | 12 h 30 min |
| October | 62°F | 35°F | 48.5°F | 1.63 | 4.3 | 7 | <1 | 13 | 11 h 10 min |
| November | 47°F | 24°F | 35.4°F | 1.04 | 6.9 | 6 | <1 | 28 | 10 h |
| December | 34°F | 12°F | 22.8°F | 1.08 | 10.1 | 6 | <1 | 31 | 9 h 20 min |
| Year (annual) | 61°F | 34°F | 47.1°F | 14.37 | 51.2 | 80 | 24 | 179 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 1°C | −11°C | −5.3°C | 28 mm | 34 cm |
| February | 4°C | −9°C | −2.7°C | 26 mm | 21 cm |
| March | 10°C | −3°C | 3.5°C | 32 mm | 12 cm |
| April | 15°C | 0°C | 7.6°C | 34 mm | 7 cm |
| May | 20°C | 5°C | 12.8°C | 40 mm | 3 cm |
| June | 28°C | 10°C | 18.7°C | 22 mm | 0 cm |
| July | 31°C | 14°C | 22.6°C | 25 mm | 0 cm |
| August | 30°C | 13°C | 21.3°C | 24 mm | 0 cm |
| September | 25°C | 8°C | 16.3°C | 40 mm | 0 cm |
| October | 17°C | 2°C | 9.2°C | 41 mm | 11 cm |
| November | 8°C | −4°C | 1.9°C | 26 mm | 18 cm |
| December | 1°C | −11°C | −5.1°C | 27 mm | 26 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00055422; 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.
Which months are mildest at Massadona (3 mi E)?
Normal highs sit between 65°F and 85°F in May, June and September. Of those, June has the fewest days with rain (6).
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 USC00055422.
When is the last frost at Massadona (3 mi E)?
In Massadona (3 mi E), the last spring frost (32°F) comes after May 10 in half of years and after May 27 in one year in ten; the first autumn frost comes before October 4 in half of years and before September 20 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 101 year in 10 after May 27; 9 in 10 after April 28
- First autumn frost, half of years before
- October 41 year in 10 before September 20; 9 in 10 before October 19
NOAA puts the median frost-free season at 147 days, and the season without a hard freeze (28°F) at 169 days.
A hard freeze (28°F) comes after April 30 in half of springs and before October 16 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Massadona (3 mi E) in zone 5b in ZIP code 81633, the nearest ZIP area.
Frost dates for every NOAA station in Colorado · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00055422; 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.
How hot and how cold does it get at Massadona (3 mi E)?
In a normal year in Massadona (3 mi E), 24 days a year reach 90°F (1 of them 100°F or more), 179 nights fall to 32°F or colder and 80 days bring measurable precipitation.
- Days at 90°F or more
- 24a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 179a normal year
- Days that stay below freezing
- 39high of 32°F or less
- Days with 0.01 inch of precipitation
- 80a normal year
- Days with 1 inch of snow or more
- 20a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00055422.
How sunny is it at Massadona (3 mi E)?
Over a year 81% of the sunlight that would reach the ground under clear skies gets through the clouds at Massadona (3 mi E), 4.8 kWh per square metre a day. September is the sunniest month (86%) and December the cloudiest (70%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 73% | 2.3 |
| February | 73% | 3.2 |
| March | 76% | 4.6 |
| April | 76% | 5.8 |
| May | 79% | 6.8 |
| June | 86% | 7.8 |
| July | 85% | 7.3 |
| August | 85% | 6.5 |
| September | 86% | 5.5 |
| October | 81% | 3.9 |
| November | 77% | 2.6 |
| December | 70% | 2.0 |
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 many heating and cooling degree days does Massadona (3 mi E) record?
A normal year at Massadona (3 mi E) brings 7,059 heating degree days, 31% more than the median U.S. place (5,373), and 564 cooling degree days, 38% fewer than the median (908). Eight months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,484 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,321 | 0 |
| February | 1,061 | 0 |
| March | 828 | 0 |
| April | 582 | 0 |
| May | 319 | 9 |
| June | 76 | 96 |
| July | 7 | 243 |
| August | 13 | 180 |
| September | 146 | 37 |
| October | 512 | 0 |
| November | 890 | 0 |
| December | 1,306 | 0 |
| Year (annual) | 7,059 | 564 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00055422. 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 Massadona (3 mi E)'s climate compare?
Massadona (3 mi E) is warmer than 52 of the 125 places with their own NOAA record in Colorado, and wetter than 45. Across the 7,247 U.S. stations with normals, its annual mean of 47.1°F is warmer than 28%.
In the Köppen classification computed from these normals, Massadona (3 mi E) is Dfa: continental, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Questions about Massadona (3 mi E)'s climate
What is the coldest month at Massadona (3 mi E)?
January, with a normal high of 33°F and a normal low of 12°F. The warmest is July (88°F by day, 57°F at night).
Does it snow at Massadona (3 mi E)?
Yes: 51 inches in a normal year, falling on 28 days with 0.1 inch or more, the most in January (13.3 inches).
What is the rainiest month at Massadona (3 mi E)?
October, with 1.63 in of precipitation in a normal year; the driest is June with 0.85 in.
What plant hardiness zone is Massadona (3 mi E) in?
The USDA's 2023 map puts Massadona (3 mi E) in zone 5b in ZIP code 81633, the nearest ZIP area.
How late can frost come at Massadona (3 mi E)?
In half of years the last 32°F night comes after May 10; in one year in ten it comes after May 27. Waiting until May 27 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Colorado climateThe statewide normals and every place in the state
- Rangely, CO16 miles from this station, 46.5°F a year
- Dinosaur, CO19 miles from this station, 48.8°F a year
- Maybell, CO31 miles from this station, 41.6°F a year
- Dinosaur National Monument-Quarry Area, UT39 miles from this station, 49.2°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made