Northdale, Colorado climate: Climate normals at a NOAA weather station
Northdale's normal year runs from 11°F January nights to 87°F July afternoons, with 11.3 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 7.5°C, January lows of −11°C, July highs of 31°C, 287 mm of precipitation a year.
- NOAA stationNorthdale
- Station IDUSC00055970
- Location37.81°N 109.01°W
- Elevation6,681 ft (2,036 m)
On October 23, the normal high in Northdale is 59°F and the normal low 28°F, and the chance of measurable rain or snow is 14%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Northdale.
- Jan 37° 11°
- Feb 41° 15°
- Mar 52° 23°
- Apr 60° 28°
- May 70° 35°
- Jun 82° 42°
- Jul 87° 51°
- Aug 84° 50°
- Sep 76° 41°
- Oct 63° 30°
- Nov 49° 20°
- Dec 38° 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 Northdale each month?
July is the warmest month, with normal highs of 87°F; January the coldest, with normal lows of 11°F. The most precipitation falls in October (1.35 in), the least in June (0.41 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 37°F | 11°F | 24.0°F | 0.76 | 6 | <1 | 31 | 9 h 50 min |
| February | 41°F | 15°F | 28.0°F | 0.74 | 4 | <1 | 27 | 10 h 50 min |
| March | 52°F | 23°F | 37.1°F | 0.86 | 5 | <1 | 28 | 11 h 50 min |
| April | 60°F | 28°F | 43.8°F | 0.64 | 5 | <1 | 22 | 13 h 10 min |
| May | 70°F | 35°F | 52.3°F | 0.88 | 5 | <1 | 9 | 14 h 10 min |
| June | 82°F | 42°F | 61.9°F | 0.41 | 2 | 4 | 1 | 14 h 50 min |
| July | 87°F | 51°F | 68.9°F | 1.32 | 6 | 10 | <1 | 14 h 30 min |
| August | 84°F | 50°F | 66.7°F | 1.33 | 5 | 6 | <1 | 13 h 40 min |
| September | 76°F | 41°F | 58.3°F | 1.07 | 6 | 1 | 2 | 12 h 30 min |
| October | 63°F | 30°F | 46.3°F | 1.35 | 4 | <1 | 18 | 11 h 20 min |
| November | 49°F | 20°F | 34.4°F | 0.96 | 4 | <1 | 28 | 10 h 10 min |
| December | 38°F | 12°F | 24.6°F | 0.98 | 4 | <1 | 31 | 9 h 30 min |
| Year (annual) | 61°F | 30°F | 45.5°F | 11.30 | 56 | 20 | 197 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 3°C | −11°C | −4.4°C | 19 mm |
| February | 5°C | −9°C | −2.2°C | 19 mm |
| March | 11°C | −5°C | 2.8°C | 22 mm |
| April | 16°C | −2°C | 6.6°C | 16 mm |
| May | 21°C | 2°C | 11.3°C | 22 mm |
| June | 28°C | 6°C | 16.6°C | 10 mm |
| July | 31°C | 11°C | 20.5°C | 34 mm |
| August | 29°C | 10°C | 19.3°C | 34 mm |
| September | 24°C | 5°C | 14.6°C | 27 mm |
| October | 17°C | −1°C | 7.9°C | 34 mm |
| November | 10°C | −7°C | 1.3°C | 24 mm |
| December | 3°C | −11°C | −4.1°C | 25 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Monticello (2 mi E) (17 miles away), gets 64 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00055970; 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 Northdale?
Normal highs sit between 65°F and 85°F in May, June, August and September. Of those, June has the fewest days with rain (2).
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 USC00055970.
When is the last frost at Northdale?
In Northdale, the last spring frost (32°F) comes after June 3 in half of years and after June 19 in one year in ten; the first autumn frost comes before September 25 in half of years and before September 12 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
- June 31 year in 10 after June 19; 9 in 10 after May 19
- First autumn frost, half of years before
- September 251 year in 10 before September 12; 9 in 10 before October 6
NOAA puts the median frost-free season at 113 days, and the season without a hard freeze (28°F) at 135 days.
A hard freeze (28°F) comes after May 21 in half of springs and before October 4 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Northdale in zone 6b in ZIP code 81324, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, the station is in zone 5b: the coldest night of a typical year reaches −10°F (16 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in Colorado · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00055970; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. 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 Northdale?
In a normal year in Northdale, 20 days a year reach 90°F, 197 nights fall to 32°F or colder and 56 days bring measurable precipitation.
- Days at 90°F or more
- 20a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 197a normal year
- Days that stay below freezing
- 22high of 32°F or less
- Days with 0.01 inch of precipitation
- 56a normal year
The highest temperature in this station's record (since 1930) is 103°F, on July 6, 1936; the lowest is −42°F, on February 8, 1933.
The wettest calendar year on that record is 1957, with 25.14 in; the snowiest season is 1931–32, with 91.2 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00055970; records: ACIS (NOAA Regional Climate Centers), station USC00055970. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Northdale?
Over a year 86% of the sunlight that would reach the ground under clear skies gets through the clouds at Northdale, 5.4 kWh per square metre a day. June is the sunniest month (92%) and December the cloudiest (77%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 79% | 2.8 |
| February | 78% | 3.7 |
| March | 84% | 5.3 |
| April | 85% | 6.7 |
| May | 87% | 7.6 |
| June | 92% | 8.4 |
| July | 88% | 7.5 |
| August | 87% | 6.7 |
| September | 88% | 5.8 |
| October | 87% | 4.5 |
| November | 85% | 3.2 |
| December | 77% | 2.5 |
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 Northdale record?
A normal year at Northdale brings 7,326 heating degree days, 36% more than the median U.S. place (5,373), and 258 cooling degree days, 72% 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 1,908 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,271 | 0 |
| February | 1,037 | 0 |
| March | 865 | 0 |
| April | 636 | 0 |
| May | 395 | 2 |
| June | 124 | 33 |
| July | 14 | 135 |
| August | 28 | 80 |
| September | 209 | 8 |
| October | 580 | 0 |
| November | 917 | 0 |
| December | 1,251 | 0 |
| Year (annual) | 7,326 | 258 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00055970. 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.
Have recent years at Northdale been warmer than normal?
2025 averaged 46.0°F, 0.5°F above the 1991-2020 normal of 45.5°F. 4 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 47.1°F | +1.6°F | 14.41 |
| 2022 | 46.4°F | +0.9°F | 12.32 |
| 2023 | 44.6°F | −0.9°F | 12.79 |
| 2024 | 47.3°F | +1.8°F | 13.47 |
| 2025 | 46.0°F | +0.5°F | 10.19 |
Over 63 complete years from 1933 to 2025, the station's annual mean temperature rose at a fitted 2.2°F per century (+0.12°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00055970; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Northdale's climate compare?
Northdale is warmer than 44 of the 125 places with their own NOAA record in Colorado, and wetter than 20. Across the 7,247 U.S. stations with normals, its annual mean of 45.5°F is warmer than 21%.
In the Köppen classification computed from these normals, Northdale is BSk: cold semi-arid steppe. 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 Northdale's climate
What is the coldest month at Northdale?
January, with a normal high of 37°F and a normal low of 11°F. The warmest is July (87°F by day, 51°F at night).
Does it snow at Northdale?
Yes. NOAA publishes no 1991-2020 snowfall normal for the station; the nearest record that keeps one, Monticello (2 mi E) (17 miles away), records 64 inches of snow in a normal year.
What is the rainiest month at Northdale?
October, with 1.35 in of precipitation in a normal year; the driest is June with 0.41 in.
What plant hardiness zone is Northdale in?
The USDA's 2023 map puts Northdale in zone 6b in ZIP code 81324, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches −10°F (16 years, 1991-2020): zone 5b.
How late can frost come at Northdale?
In half of years the last 32°F night comes after June 3; in one year in ten it comes after June 19. Waiting until June 19 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Colorado climateThe statewide normals and every place in the state
- Dove Creek, CO6 miles from this station, 48.7°F a year
- Cedar Point, UT7 miles from this station, 48.1°F a year
- Monticello, UT19 miles from this station, 47.3°F a year
- Yellow Jacket (2 mi W), CO25 miles from this station, 49.5°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made