McKinney, TX weather in July
July in McKinney: hot, oppressively humid and mostly dry. Highs 95°F, lows 74°F, about 5 wet days. This is the peak of the warm season in McKinney. Midday heat is the main thing to plan around.
- Normal high
- 95°F
- Normal low
- 74°F
- Wet days
- 5
- 2.6 in total
- Muggy days
- 27
- dew point 65°F+
How July changes from start to finish
| July 1 | July 31 | |
|---|---|---|
| Normal high | 93°F | 97°F |
| Normal low | 73°F | 75°F |
| Chance of a wet day | 21% | 16% |
| Sunrise / sunset | 6:21 am / 8:39 pm | 6:38 am / 8:26 pm |
| Daylight | 14.3 h | 13.8 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).
A typical July day
- 6 am77°Fdew point 70°F
- 9 am84°Fdew point 70°F
- Noon91°Fdew point 69°F
- 3 pm94°Fdew point 67°F
- 6 pm93°Fdew point 66°F
- 9 pm86°Fdew point 68°F
NOAA hourly normals (local standard time) from Dallas Ft Worth Airport (31 mi away); average wind 10 mph; clear or few clouds in 35% of daytime hours, mostly cloudy or overcast in 33%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F0 of 31
- Hot dayshigh 90°F or more27 of 31
- Muggy daysdaily mean dew point 65°F or more27 of 31
- Wet daysat least 0.01 in of rain or melted snow5 of 31
- Notable rainat least 0.10 in3 of 31
- Freezing nightslow 32°F or below0 of 31
- Snow on the groundsnow depth 1 in or more0 of 31
Average days per July, counted from daily records for each year 1991-2020.
Rain in July
Normal precipitation is 2.6 in; a dry July brings about 0.7 in and a wet one about 3.6 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more.
How July varies from year to year
- Warmest July, 1991-20201998: average high 102°F
- Coolest July2007: average high 89°F
- Wettest July1994: 10.8 in
- Driest July1993: no measurable precipitation
- Highest reading111°F (July 12, 1998)
- Lowest reading58°F (July 3, 2013)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
July compared with June and August
| June | July | August | |
|---|---|---|---|
| Normal high | 91°F | 95°F | 96°F |
| Normal low | 70°F | 74°F | 73°F |
| Wet days | 8 | 5 | 6 |
| Comfortable days | 0 | 0 | 0 |
| Daylight | 14.3 h | 14.1 h | 13.3 h |
Highs change by +4°F from June and +1°F into August.
Nearby alternatives in July
- Cooler: Fayetteville, AR242 mi · high 89°F · 9 wet days
How McKinney ranks in July
- Normal high56th warmest of 378 cities; 24th of 38 in Texas
- Wet days118th driest of 378
- Comfortable days330th most of 340
What to pack for McKinney in July
- Light, breathable clothing – highs near 95°F and about 27 muggy days
- Sunglasses and sunscreen – about 14.1 hours of daylight and highs near 95°F
Heating and cooling
July has 0 heating degree days and 601 cooling degree days (base 65°F), 12% of the year's total heating and cooling demand.
Questions
How hot is McKinney in July?
The normal high is 95°F and the normal low is 74°F. From 1991 to 2020 the hottest July reading was 111°F (July 12, 1998).
Does it rain a lot in McKinney in July?
About 5 days in July have at least 0.01 in of precipitation, and the normal total is 2.6 in. The wettest July in 1991-2020 was in 1994 (10.8 in); the driest was in 1993, with no measurable precipitation.
Is July a good time to visit McKinney?
July ranks 11th of 12 months on our comfort score for McKinney (37 out of 100). It has almost no comfortable days and about 27 days at 90°F or hotter. The best months are March and April.
Where the numbers come from
- Temperature and frost dates: Mckinney Muni Airport (USW00053914), 1.9 mi SE of the city center, 580 ft (50 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Rain, snowfall and snow depth: Frisco (USC00413370), 10 mi W of the city center, 747 ft (117 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour and cloud cover: Dallas Ft Worth Airport (USW00003927), 31 mi SW of the city center, 560 ft (70 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Dallas/Ft Worth International Airport (722590-03927), 31 mi SW of the city center, 544 ft (86 ft lower than the city). Hourly observations, 1991-2020.