Fort Morgan, Colorado climate: Normal weather by month, frost dates and records
Fort Morgan's normal year runs from 13°F January nights to 90°F July afternoons, with 14.3 inches of precipitation and 23 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 9.9°C, January lows of −11°C, July highs of 32°C, 363 mm of precipitation a year.
- NOAA stationFort Morgan
- Station IDUSC00053038
- Location40.26°N 103.87°W
- Elevation4,376 ft (1,334 m)
- Population11,835
On October 23, the normal high in Fort Morgan is 63°F and the normal low 31°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 Fort Morgan.
- Jan 42° 13°
- Feb 45° 15°
- Mar 56° 25°
- Apr 63° 33°
- May 72° 43°
- Jun 84° 54°
- Jul 90° 60°
- Aug 88° 57°
- Sep 81° 47°
- Oct 66° 34°
- Nov 52° 21°
- Dec 42° 13°
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 Fort Morgan each month?
July is the warmest month, with normal highs of 90°F; January the coldest, with normal lows of 13°F. The most precipitation falls in July (2.39 in), the least in January (0.25 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 42°F | 13°F | 27.1°F | 0.25 | 3.8 | 3 | <1 | 31 | 9 h 40 min |
| February | 45°F | 15°F | 30.1°F | 0.27 | 3.9 | 3 | <1 | 27 | 10 h 40 min |
| March | 56°F | 25°F | 40.4°F | 0.74 | 3.8 | 4 | <1 | 26 | 11 h 50 min |
| April | 63°F | 33°F | 48.1°F | 1.46 | 1.7 | 6 | <1 | 14 | 13 h 10 min |
| May | 72°F | 43°F | 57.9°F | 2.24 | 0.3 | 10 | 2 | 2 | 14 h 20 min |
| June | 84°F | 54°F | 68.8°F | 2.16 | 0.0 | 8 | 9 | <1 | 15 h |
| July | 90°F | 60°F | 75.0°F | 2.39 | 0.0 | 8 | 18 | <1 | 14 h 50 min |
| August | 88°F | 57°F | 72.4°F | 1.71 | 0.0 | 8 | 15 | <1 | 13 h 50 min |
| September | 81°F | 47°F | 63.8°F | 1.14 | 0.0 | 5 | 7 | 1 | 12 h 30 min |
| October | 66°F | 34°F | 50.0°F | 1.14 | 2.1 | 5 | <1 | 12 | 11 h 10 min |
| November | 52°F | 21°F | 36.8°F | 0.49 | 2.7 | 3 | <1 | 27 | 10 h |
| December | 42°F | 13°F | 27.5°F | 0.29 | 4.4 | 3 | <1 | 31 | 9 h 20 min |
| Year (annual) | 65°F | 35°F | 49.8°F | 14.28 | 22.7 | 64 | 51 | 170 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 5°C | −11°C | −2.7°C | 6 mm | 10 cm |
| February | 7°C | −9°C | −1.1°C | 7 mm | 10 cm |
| March | 13°C | −4°C | 4.7°C | 19 mm | 10 cm |
| April | 17°C | 1°C | 8.9°C | 37 mm | 4 cm |
| May | 22°C | 6°C | 14.4°C | 57 mm | 1 cm |
| June | 29°C | 12°C | 20.4°C | 55 mm | 0 cm |
| July | 32°C | 15°C | 23.9°C | 61 mm | 0 cm |
| August | 31°C | 14°C | 22.4°C | 43 mm | 0 cm |
| September | 27°C | 8°C | 17.7°C | 29 mm | 0 cm |
| October | 19°C | 1°C | 10.0°C | 29 mm | 5 cm |
| November | 11°C | −6°C | 2.7°C | 12 mm | 7 cm |
| December | 5°C | −10°C | −2.5°C | 7 mm | 11 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00053038; 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 Fort Morgan?
Normal highs sit between 65°F and 85°F in May, June, September and October. Of those, October has the fewest days with rain (5).
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 USC00053038.
When is the last frost in Fort Morgan?
In Fort Morgan, the last spring frost (32°F) comes after May 6 in half of years and after May 19 in one year in ten; the first autumn frost comes before October 6 in half of years and before September 24 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 61 year in 10 after May 19; 9 in 10 after April 23
- First autumn frost, half of years before
- October 61 year in 10 before September 24; 9 in 10 before October 18
NOAA puts the median frost-free season at 153 days, and the season without a hard freeze (28°F) at 171 days.
A hard freeze (28°F) comes after April 27 in half of springs and before October 15 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Fort Morgan in zone 5b in ZIP code 80701, 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 USC00053038; 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 in Fort Morgan?
In a normal year in Fort Morgan, 51 days a year reach 90°F (4 of them 100°F or more), 170 nights fall to 32°F or colder and 64 days bring measurable precipitation.
- Days at 90°F or more
- 51a normal year
- Days at 100°F or more
- 4a normal year
- Nights at 32°F or colder
- 170a normal year
- Days that stay below freezing
- 25high of 32°F or less
- Days with 0.01 inch of precipitation
- 64a normal year
- Days with 1 inch of snow or more
- 8a normal year
The highest temperature in this station's record (since 1896) is 109°F, on July 18, 1898; the lowest is −41°F, on February 1, 1951.
The wettest calendar year on that record is 1915, with 26.51 in; the snowiest season is 1973–74, with 63.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00053038; records: ACIS (NOAA Regional Climate Centers), station USC00053038. Records use complete months only; a month missing more than three days is left out.
How sunny is Fort Morgan?
Over a year 81% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Fort Morgan, 4.8 kWh per square metre a day. August is the sunniest month (87%) and February the cloudiest (75%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 79% | 2.5 |
| February | 75% | 3.3 |
| March | 77% | 4.6 |
| April | 76% | 5.6 |
| May | 77% | 6.4 |
| June | 85% | 7.4 |
| July | 87% | 7.2 |
| August | 87% | 6.4 |
| September | 86% | 5.3 |
| October | 81% | 3.8 |
| November | 80% | 2.7 |
| December | 76% | 2.1 |
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 Fort Morgan need?
A normal year in Fort Morgan brings 6,321 heating degree days, 18% more than the median U.S. place (5,373), and 817 cooling degree days, 10% 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 2,972 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,173 | 0 |
| February | 978 | 0 |
| March | 761 | 0 |
| April | 508 | 1 |
| May | 250 | 28 |
| June | 40 | 153 |
| July | 3 | 312 |
| August | 11 | 241 |
| September | 116 | 80 |
| October | 469 | 3 |
| November | 846 | 0 |
| December | 1,164 | 0 |
| Year (annual) | 6,321 | 817 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00053038. 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 Fort Morgan's climate compare?
Fort Morgan is warmer than 72 of the other 124 places with their own NOAA record in Colorado, and wetter than 43. Across the 7,247 U.S. stations with normals, its annual mean of 49.8°F is warmer than 39%.
In the Köppen classification computed from these normals, Fort Morgan 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.
Which places near Fort Morgan share this climate record?
11 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.
- Brush, CO5,370 people · 12 mi E
- Wiggins, CO1,872 people · 11 mi W
- Log Lane Village, CO938 people · 2 mi E
- Morgan Heights, CO261 people · 3 mi NE
- Jackson Lake, CO218 people · 13 mi NW
- Blue Sky, CO142 people · 5 mi NE
- Weldona, CO105 people · 8 mi NW
- Orchard, CO87 people · 14 mi W
- Trail Side, CO85 people · 1 mi E
- Saddle Ridge, CO58 people · 5 mi NE
- Snyder, CO27 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 Fort Morgan's climate
What is the coldest month in Fort Morgan?
January, with a normal high of 42°F and a normal low of 13°F. The warmest is July (90°F by day, 60°F at night).
Does it snow in Fort Morgan?
Yes: 23 inches in a normal year, falling on 12 days with 0.1 inch or more, the most in December (4.4 inches).
What is the rainiest month in Fort Morgan?
July, with 2.39 in of precipitation in a normal year; the driest is January with 0.25 in.
What plant hardiness zone is Fort Morgan in?
The USDA's 2023 map puts Fort Morgan in zone 5b in ZIP code 80701, the nearest ZIP area.
How late can frost come in Fort Morgan?
In half of years the last 32°F night comes after May 6; in one year in ten it comes after May 19. Waiting until May 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
- Woodrow (6 mi NNE), CO21 miles from this station, 48.3°F a year
- New Raymer, CO24 miles from this station, 48.8°F a year
- Akron, CO35 miles from this station, 50.2°F a year
- Briggsdale, CO35 miles from this station, 47.7°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made