McKinney Municipal Airport, Texas climate: Climate normals at a NOAA weather station
McKinney Municipal Airport's normal year runs from 34°F January nights to 94°F July afternoons. (NOAA 1991-2020 normals)
In metric: a yearly mean of 18.3°C, January lows of 1°C, July highs of 35°C.
- NOAA stationMcKinney Municipal Airport
- Station IDUSC00415766
- Location33.19°N 96.59°W
- Elevation586 ft (179 m)
On October 23, the normal high in McKinney Municipal Airport is 77°F and the normal low 51°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for McKinney Municipal Airport.
- Jan 56° 34°
- Feb 60° 36°
- Mar 69° 45°
- Apr 76° 52°
- May 83° 62°
- Jun 90° 70°
- Jul 94° 73°
- Aug 95° 71°
- Sep 87° 65°
- Oct 79° 54°
- Nov 67° 44°
- Dec 58° 37°
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 McKinney Municipal Airport each month?
July is the warmest month, with normal highs of 94°F; January the coldest, with normal lows of 34°F.
| Month | High | Low | Mean | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|
| January | 56°F | 34°F | 45.0°F | – | <1 | 14 | 10 h 10 min |
| February | 60°F | 36°F | 48.1°F | – | <1 | 11 | 11 h |
| March | 69°F | 45°F | 57.1°F | – | <1 | 3 | 12 h |
| April | 76°F | 52°F | 64.2°F | – | 1 | <1 | 13 h |
| May | 83°F | 62°F | 72.6°F | – | 4 | <1 | 13 h 50 min |
| June | 90°F | 70°F | 80.0°F | – | 16 | <1 | 14 h 20 min |
| July | 94°F | 73°F | 83.3°F | – | 27 | <1 | 14 h 10 min |
| August | 95°F | 71°F | 82.9°F | – | 27 | <1 | 13 h 30 min |
| September | 87°F | 65°F | 76.1°F | – | 13 | <1 | 12 h 30 min |
| October | 79°F | 54°F | 66.2°F | – | 2 | <1 | 11 h 20 min |
| November | 67°F | 44°F | 55.4°F | – | <1 | 5 | 10 h 30 min |
| December | 58°F | 37°F | 47.4°F | – | <1 | 12 | 10 h |
| Year (annual) | 76°F | 54°F | 64.9°F | – | 88 | 45 |
The same normals in °C and millimetres
| Month | High | Low | Mean |
|---|---|---|---|
| January | 14°C | 1°C | 7.2°C |
| February | 16°C | 2°C | 8.9°C |
| March | 21°C | 7°C | 13.9°C |
| April | 25°C | 11°C | 17.9°C |
| May | 28°C | 17°C | 22.6°C |
| June | 32°C | 21°C | 26.7°C |
| July | 35°C | 23°C | 28.5°C |
| August | 35°C | 22°C | 28.3°C |
| September | 31°C | 18°C | 24.5°C |
| October | 26°C | 12°C | 19.0°C |
| November | 19°C | 7°C | 13.0°C |
| December | 14°C | 3°C | 8.6°C |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Lavon (12 miles away), gets 0 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00415766; 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 McKinney Municipal Airport?
Normal highs sit between 65°F and 85°F in March, April, May, October and November.
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 USC00415766.
When is the last frost at McKinney Municipal Airport?
In McKinney Municipal Airport, the last spring frost (32°F) comes after March 17 in half of years and after April 5 in one year in ten; the first autumn frost comes before November 15 in half of years and before October 27 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
- March 171 year in 10 after April 5; 9 in 10 after February 27
- First autumn frost, half of years before
- November 151 year in 10 before October 27; 9 in 10 before December 5
NOAA puts the median frost-free season at 241 days, and the season without a hard freeze (28°F) at 266 days.
A hard freeze (28°F) comes after March 4 in half of springs and before November 30 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts McKinney Municipal Airport in zone 8b in ZIP code 75069, the nearest ZIP area.
Frost dates for every NOAA station in Texas · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00415766; 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 McKinney Municipal Airport?
In a normal year in McKinney Municipal Airport, 88 days a year reach 90°F (14 of them 100°F or more) and 45 nights fall to 32°F or colder.
- Days at 90°F or more
- 88a normal year
- Days at 100°F or more
- 14a normal year
- Nights at 32°F or colder
- 45a normal year
- Days that stay below freezing
- 2high of 32°F or less
The highest temperature in this station's record (since 1903) is 118°F, on August 10, 1936; the lowest is −7°F, on January 18, 1930.
The wettest calendar year on that record is 1964, with 55.71 in; the snowiest season is 1977–78, with 17.4 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00415766; records: ACIS (NOAA Regional Climate Centers), station USC00415766. Records use complete months only; a month missing more than three days is left out.
How sunny is it at McKinney Municipal Airport?
Over a year 79% of the sunlight that would reach the ground under clear skies gets through the clouds at McKinney Municipal Airport, 4.6 kWh per square metre a day. July is the sunniest month (87%) and February the cloudiest (69%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 74% | 2.8 |
| February | 69% | 3.3 |
| March | 72% | 4.4 |
| April | 75% | 5.3 |
| May | 75% | 5.8 |
| June | 83% | 6.6 |
| July | 87% | 6.7 |
| August | 86% | 6.1 |
| September | 83% | 5.1 |
| October | 80% | 4.0 |
| November | 77% | 3.0 |
| December | 73% | 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 McKinney Municipal Airport record?
A normal year at McKinney Municipal Airport brings 2,429 heating degree days, 55% fewer than the median U.S. place (5,373), and 2,416 cooling degree days, 2.7 times the median (908). Four months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 6,061 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 621 | 1 |
| February | 475 | 2 |
| March | 271 | 28 |
| April | 103 | 77 |
| May | 11 | 247 |
| June | 0 | 450 |
| July | 0 | 569 |
| August | 0 | 556 |
| September | 8 | 341 |
| October | 81 | 120 |
| November | 308 | 21 |
| December | 551 | 4 |
| Year (annual) | 2,429 | 2,416 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00415766. 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 McKinney Municipal Airport's climate compare?
McKinney Municipal Airport is warmer than 126 of the 321 places with their own NOAA record in Texas. Across the 7,247 U.S. stations with normals, its annual mean of 64.9°F is warmer than 88%.
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers.
Which places near McKinney Municipal Airport share this climate record?
8 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.
- Prosper, TX44,503 people · 13 mi W
- Anna, TX31,986 people · 11 mi N
- Melissa, TX26,194 people · 7 mi N
- Van Alstyne, TX7,220 people · 16 mi N
- Blue Ridge, TX1,248 people · 13 mi NE
- Westminster, TX1,105 people · 14 mi NE
- Weston, TX930 people · 11 mi NW
- New Hope, TX684 people · 2 mi NE
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 McKinney Municipal Airport's climate
What is the coldest month at McKinney Municipal Airport?
January, with a normal high of 56°F and a normal low of 34°F. The warmest is July (94°F by day, 73°F at night).
Does it snow at McKinney Municipal Airport?
Rarely. NOAA publishes no 1991-2020 snowfall normal for the station; the nearest record that keeps one, Lavon (12 miles away), records 0 inches of snow in a normal year.
What plant hardiness zone is McKinney Municipal Airport in?
The USDA's 2023 map puts McKinney Municipal Airport in zone 8b in ZIP code 75069, the nearest ZIP area.
How late can frost come at McKinney Municipal Airport?
In half of years the last 32°F night comes after March 17; in one year in ten it comes after April 5. Waiting until April 5 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Texas climateThe statewide normals and every place in the state
- McKinney, TX1 miles from this station, 65.0°F a year
- Lavon, TX12 miles from this station, 64.2°F a year
- Richardson, TX16 miles from this station, 65.8°F a year
- Pilot Point, TX27 miles from this station, 64.8°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made