McKinney weather in August
In August, McKinney sees average daytime highs of 93°F and overnight lows near 75°F, with 2.0 in of rain across 5.8 wet days and about 13.2 hours of daylight. It is the 1st-warmest and 11th-wettest month of the year here.
Day-to-day highs hold fairly steady near 93°F through the month. The sky is clear or mostly clear about 57% of the time in August, and the air most often feels muggy.
Daylight stretches from about 13 h 42 min at the start of August to 12 h 48 min by month's end. Set against the rest of the year, August is McKinney's 2nd-clearest and 12th-windiest month. For the whole year in context, see McKinney's year-round climate.
- Daytime high
- 93°
- 1st warmest
- Overnight low
- 75°
- 11th coldest
- Rainfall
- 2.0 in
- 5.8 wet days
- Daylight
- 13 h 12 min
- 5:53 AM – 7:08 PM
- Cloud cover
- 41%
- 2nd clearest
- Wind
- 7 mph
- 12th windiest
- Solar energy
- 6.23 kWh/m²
- Travel score
- 3.4
- out of 10
McKinney is city in Collin County, Texas, United States.
- Density
- 988/km²
- people per km²
- Founded
- 1848
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in August
Day-to-day highs hold fairly steady near 93°F through the month.
A typical August day in McKinney reaches about 93°F in the afternoon and slips back to 75°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 85°F and 100°F. Set against its neighbours, August runs on par with July and about 7°F warmer than September.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 94 | 94 | 94 | 94 | 94 | 94 | 94 | 94 | 94 | 94 | 94 | 94 | 94 | 93 | 93 | 93 | 93 | 93 | 93 | 93 | 93 | 93 | 93 | 92 | 92 | 92 | 92 | 92 | 92 | 91 | 91 |
| Avg low (°F) | 76 | 76 | 76 | 76 | 76 | 76 | 76 | 76 | 76 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 73 | 73 | 73 | 73 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 94 | 76 |
| 2 | 94 | 76 |
| 3 | 94 | 76 |
| 4 | 94 | 76 |
| 5 | 94 | 76 |
| 6 | 94 | 76 |
| 7 | 94 | 76 |
| 8 | 94 | 76 |
| 9 | 94 | 76 |
| 10 | 94 | 75 |
| 11 | 94 | 75 |
| 12 | 94 | 75 |
| 13 | 94 | 75 |
| 14 | 93 | 75 |
| 15 | 93 | 75 |
| 16 | 93 | 75 |
| 17 | 93 | 75 |
| 18 | 93 | 75 |
| 19 | 93 | 75 |
| 20 | 93 | 74 |
| 21 | 93 | 74 |
| 22 | 93 | 74 |
| 23 | 93 | 74 |
| 24 | 92 | 74 |
| 25 | 92 | 74 |
| 26 | 92 | 74 |
| 27 | 92 | 74 |
| 28 | 92 | 73 |
| 29 | 92 | 73 |
| 30 | 91 | 73 |
| 31 | 91 | 73 |
How August really feels in McKinney
Once humidity and wind are folded in, August averages 31 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.
The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
McKinney weather by month
How August compares with the rest of the year at a glance. August is the 1st-warmest and 11th-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 55° / 37° | 2.8 | 6.8 | 0.5 | 10.1 | 3.8 |
| Feb | 59° / 40° | 2.9 | 7.5 | 0.6 | 10.8 | 4.8 |
| Mar | 66° / 47° | 4.1 | 9.5 | 0.3 | 11.7 | 6.2 |
| Apr | 74° / 55° | 4.6 | 9.2 | 0 | 12.8 | 7.0 |
| May | 81° / 64° | 5.7 | 11.5 | 0 | 13.7 | 6.1 |
| Jun | 89° / 72° | 3.6 | 9.1 | 0 | 14.2 | 4.4 |
| Jul | 93° / 75° | 2.0 | 6.2 | 0 | 14 | 3.4 |
| Aug | 93° / 75° | 2.0 | 5.8 | 0 | 13.2 | 3.4 |
| Sep | 87° / 68° | 3.1 | 6.8 | 0 | 12.2 | 5.4 |
| Oct | 76° / 57° | 4.1 | 7.9 | 0 | 11.2 | 7.4 |
| Nov | 65° / 46° | 3.7 | 7.2 | 0 | 10.3 | 6.4 |
| Dec | 56° / 39° | 3.8 | 7.2 | 0.3 | 9.8 | 4.2 |
Cloud cover in August
The sky is clear or mostly clear about 57% of the time in August.
Beyond those clear spells, partly cloudy skies cover about 15% of August, with mostly cloudy or overcast conditions the remaining 28%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 72 | 72 | 72 | 72 | 73 | 73 | 73 | 73 | 73 | 73 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 73 | 72 | 72 | 72 | 71 | 71 |
| Cloudier (%) | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 28 | 29 | 29 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 72 | 28 |
| 2 | 72 | 28 |
| 3 | 72 | 28 |
| 4 | 72 | 28 |
| 5 | 73 | 27 |
| 6 | 73 | 27 |
| 7 | 73 | 27 |
| 8 | 73 | 27 |
| 9 | 73 | 27 |
| 10 | 73 | 27 |
| 11 | 72 | 28 |
| 12 | 72 | 28 |
| 13 | 72 | 28 |
| 14 | 72 | 28 |
| 15 | 72 | 28 |
| 16 | 72 | 28 |
| 17 | 72 | 28 |
| 18 | 72 | 28 |
| 19 | 72 | 28 |
| 20 | 72 | 28 |
| 21 | 72 | 28 |
| 22 | 72 | 28 |
| 23 | 72 | 28 |
| 24 | 72 | 28 |
| 25 | 72 | 28 |
| 26 | 73 | 27 |
| 27 | 72 | 28 |
| 28 | 72 | 28 |
| 29 | 72 | 28 |
| 30 | 71 | 29 |
| 31 | 71 | 29 |
Chance of precipitation in August
McKinney gets around 2.0 in of rain over 5.8 wet days in August. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 20% and peaks near 22% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 17 | 17 | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 20 | 21 | 22 |
| Rain chance (%) | |
|---|---|
| 1 | 17 |
| 2 | 17 |
| 3 | 18 |
| 4 | 18 |
| 5 | 18 |
| 6 | 18 |
| 7 | 19 |
| 8 | 19 |
| 9 | 19 |
| 10 | 20 |
| 11 | 20 |
| 12 | 21 |
| 13 | 21 |
| 14 | 21 |
| 15 | 21 |
| 16 | 21 |
| 17 | 21 |
| 18 | 20 |
| 19 | 20 |
| 20 | 20 |
| 21 | 19 |
| 22 | 19 |
| 23 | 19 |
| 24 | 19 |
| 25 | 19 |
| 26 | 19 |
| 27 | 20 |
| 28 | 20 |
| 29 | 20 |
| 30 | 21 |
| 31 | 22 |
Humidity in August
Most of August feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, August lands in the muggy band about 44% of days. Sticky, muggy-or-worse air turns up on roughly 77% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 4 |
| Comfortable (%) | 3 | 3 | 3 | 2 | 3 | 3 | 3 | 3 | 4 | 4 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 |
| Humid (%) | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 13 | 14 | 14 | 14 | 14 | 15 | 15 | 16 | 17 | 17 | 18 | 19 | 19 | 20 | 20 | 21 | 21 | 22 | 22 | 22 | 22 |
| Muggy (%) | 46 | 46 | 47 | 47 | 47 | 47 | 47 | 47 | 46 | 46 | 45 | 45 | 44 | 44 | 44 | 43 | 43 | 43 | 42 | 42 | 43 | 43 | 43 | 43 | 43 | 43 | 43 | 42 | 42 | 41 | 40 |
| Oppressive (%) | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 35 | 34 | 35 | 34 | 33 | 33 | 32 | 32 | 31 | 30 | 30 | 29 | 28 | 28 | 27 | 27 | 26 | 26 | 26 |
| Miserable (%) | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 0 | 3 | 15 | 46 | 34 | 1 |
| 2 | 1 | 3 | 15 | 46 | 34 | 1 |
| 3 | 1 | 3 | 15 | 47 | 34 | 1 |
| 4 | 1 | 2 | 15 | 47 | 34 | 1 |
| 5 | 1 | 3 | 15 | 47 | 34 | 1 |
| 6 | 1 | 3 | 14 | 47 | 34 | 1 |
| 7 | 1 | 3 | 14 | 47 | 34 | 2 |
| 8 | 1 | 3 | 14 | 47 | 34 | 2 |
| 9 | 0 | 4 | 14 | 46 | 34 | 2 |
| 10 | 0 | 4 | 14 | 46 | 34 | 2 |
| 11 | 0 | 5 | 13 | 45 | 34 | 2 |
| 12 | 0 | 5 | 14 | 45 | 34 | 2 |
| 13 | 0 | 6 | 14 | 44 | 35 | 2 |
| 14 | 0 | 6 | 14 | 44 | 34 | 2 |
| 15 | 0 | 6 | 14 | 44 | 35 | 1 |
| 16 | 0 | 7 | 15 | 43 | 34 | 1 |
| 17 | 1 | 7 | 15 | 43 | 33 | 1 |
| 18 | 1 | 7 | 16 | 43 | 33 | 1 |
| 19 | 1 | 7 | 17 | 42 | 32 | 1 |
| 20 | 1 | 7 | 17 | 42 | 32 | 1 |
| 21 | 1 | 7 | 18 | 43 | 31 | 1 |
| 22 | 1 | 7 | 19 | 43 | 30 | 1 |
| 23 | 1 | 7 | 19 | 43 | 30 | 1 |
| 24 | 1 | 7 | 20 | 43 | 29 | 0 |
| 25 | 1 | 7 | 20 | 43 | 28 | 0 |
| 26 | 1 | 7 | 21 | 43 | 28 | 0 |
| 27 | 1 | 7 | 21 | 43 | 27 | 0 |
| 28 | 2 | 7 | 22 | 42 | 27 | 0 |
| 29 | 2 | 8 | 22 | 42 | 26 | 0 |
| 30 | 3 | 8 | 22 | 41 | 26 | 0 |
| 31 | 4 | 8 | 22 | 40 | 26 | 0 |
Wind in August
Winds average 7 mph in August, the calmest month.
Across August, daily wind ranges from about 7 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 7 | calm |
| 2 | 7 | calm |
| 3 | 7 | calm |
| 4 | 7 | calm |
| 5 | 7 | calm |
| 6 | 7 | calm |
| 7 | 7 | calm |
| 8 | 7 | calm |
| 9 | 7 | calm |
| 10 | 7 | calm |
| 11 | 7 | calm |
| 12 | 7 | calm |
| 13 | 7 | calm |
| 14 | 7 | calm |
| 15 | 7 | calm |
| 16 | 7 | calm |
| 17 | 7 | calm |
| 18 | 7 | calm |
| 19 | 7 | calm |
| 20 | 7 | calm |
| 21 | 7 | calm |
| 22 | 7 | calm |
| 23 | 7 | calm |
| 24 | 7 | calm |
| 25 | 7 | calm |
| 26 | 7 | calm |
| 27 | 7 | calm |
| 28 | 7 | calm |
| 29 | 7 | calm |
| 30 | 7 | calm |
| 31 | 7 | calm |
Sunrise & sunset in August
Daylight runs from about 13 h 42 min at the start of August to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 54 minutes over August. Sunrise moves from 5:43 AM to 6:04 AM, and sunset from 7:22 PM to 6:49 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 13.7 | 13.6 | 13.6 | 13.6 | 13.6 | 13.5 | 13.5 | 13.5 | 13.4 | 13.4 | 13.4 | 13.4 | 13.3 | 13.3 | 13.3 | 13.2 | 13.2 | 13.2 | 13.1 | 13.1 | 13.1 | 13.1 | 13.0 | 13.0 | 13.0 | 12.9 | 12.9 | 12.9 | 12.8 | 12.8 | 12.8 |
| Sunrise (AM) | 5:43 | 5:43 | 5:44 | 5:45 | 5:46 | 5:46 | 5:47 | 5:48 | 5:48 | 5:49 | 5:50 | 5:51 | 5:51 | 5:52 | 5:53 | 5:53 | 5:54 | 5:55 | 5:56 | 5:56 | 5:57 | 5:58 | 5:58 | 5:59 | 6:00 | 6:00 | 6:01 | 6:02 | 6:02 | 6:03 | 6:04 |
| Sunset (PM) | 7:22 | 7:21 | 7:21 | 7:20 | 7:19 | 7:18 | 7:17 | 7:16 | 7:15 | 7:14 | 7:13 | 7:12 | 7:11 | 7:10 | 7:09 | 7:08 | 7:07 | 7:05 | 7:04 | 7:03 | 7:02 | 7:01 | 6:59 | 6:58 | 6:57 | 6:56 | 6:54 | 6:53 | 6:52 | 6:50 | 6:49 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.7 | 5:43 | 7:22 |
| 2 | 13.6 | 5:43 | 7:21 |
| 3 | 13.6 | 5:44 | 7:21 |
| 4 | 13.6 | 5:45 | 7:20 |
| 5 | 13.6 | 5:46 | 7:19 |
| 6 | 13.5 | 5:46 | 7:18 |
| 7 | 13.5 | 5:47 | 7:17 |
| 8 | 13.5 | 5:48 | 7:16 |
| 9 | 13.4 | 5:48 | 7:15 |
| 10 | 13.4 | 5:49 | 7:14 |
| 11 | 13.4 | 5:50 | 7:13 |
| 12 | 13.4 | 5:51 | 7:12 |
| 13 | 13.3 | 5:51 | 7:11 |
| 14 | 13.3 | 5:52 | 7:10 |
| 15 | 13.3 | 5:53 | 7:09 |
| 16 | 13.2 | 5:53 | 7:08 |
| 17 | 13.2 | 5:54 | 7:07 |
| 18 | 13.2 | 5:55 | 7:05 |
| 19 | 13.1 | 5:56 | 7:04 |
| 20 | 13.1 | 5:56 | 7:03 |
| 21 | 13.1 | 5:57 | 7:02 |
| 22 | 13.1 | 5:58 | 7:01 |
| 23 | 13.0 | 5:58 | 6:59 |
| 24 | 13.0 | 5:59 | 6:58 |
| 25 | 13.0 | 6:00 | 6:57 |
| 26 | 12.9 | 6:00 | 6:56 |
| 27 | 12.9 | 6:01 | 6:54 |
| 28 | 12.9 | 6:02 | 6:53 |
| 29 | 12.8 | 6:02 | 6:52 |
| 30 | 12.8 | 6:03 | 6:50 |
| 31 | 12.8 | 6:04 | 6:49 |
Solar energy in August
Average shortwave solar energy reaching the ground each day in August, about 6.23 kWh/m².
For context, solar energy here swings from a low near 2.52 kWh/m² to a high of 6.77 kWh/m² in July across the year — August's 6.23 kWh/m² sits near the top of that range.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.6 | 6.6 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.4 | 6.4 | 6.4 | 6.3 | 6.3 | 6.3 | 6.2 | 6.2 | 6.2 | 6.2 | 6.1 | 6.1 | 6.1 | 6.0 | 6.0 | 6.0 | 6.0 | 5.9 | 5.9 | 5.8 | 5.8 | 5.8 | 5.7 | 5.7 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.6 | Intense |
| 2 | 6.6 | Intense |
| 3 | 6.5 | Intense |
| 4 | 6.5 | Intense |
| 5 | 6.5 | Intense |
| 6 | 6.5 | Intense |
| 7 | 6.5 | Intense |
| 8 | 6.4 | Intense |
| 9 | 6.4 | Intense |
| 10 | 6.4 | Intense |
| 11 | 6.3 | Intense |
| 12 | 6.3 | Intense |
| 13 | 6.3 | Intense |
| 14 | 6.2 | Intense |
| 15 | 6.2 | Intense |
| 16 | 6.2 | Intense |
| 17 | 6.2 | Intense |
| 18 | 6.1 | Intense |
| 19 | 6.1 | Intense |
| 20 | 6.1 | Intense |
| 21 | 6.0 | Intense |
| 22 | 6.0 | Intense |
| 23 | 6.0 | Bright |
| 24 | 6.0 | Bright |
| 25 | 5.9 | Bright |
| 26 | 5.9 | Bright |
| 27 | 5.8 | Bright |
| 28 | 5.8 | Bright |
| 29 | 5.8 | Bright |
| 30 | 5.7 | Bright |
| 31 | 5.7 | Bright |
Is August a good time to visit McKinney?
Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
August is a weaker month for outdoor sightseeing in McKinney. The water and warmth also suit a beach or pool day.
What to pack for McKinney in August
From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In August, McKinney sees daytime highs around 93°F and nights near 75°F. Pack light clothes and sun protection. About 6 days see rain.
UV index in McKinney in August
Clear-sky midday UV in August peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in McKinney peaks around July 17 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 3 | 5 | 6 | 9 | 9 | 10 | 10 | 10 | 8 | 6 | 4 | 3 |
| Level | Moderate | Moderate | High | Very high | Very high | Very high | Extreme | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 5 | Moderate |
| Mar | 6 | High |
| Apr | 9 | Very high |
| May | 9 | Very high |
| Jun | 10 | Very high |
| Jul | 10 | Extreme |
| Aug | 10 | Very high |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 4 | Moderate |
| Dec | 3 | Moderate |
Air quality in McKinney in August
Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.
Air quality in McKinney is worst in July — around 19 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (October, 8 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 8 | 8 | 10 | 11 | 14 | 16 | 19 | 15 | 11 | 8 | 8 | 8 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 8 | Good |
| Mar | 10 | Good |
| Apr | 11 | Good |
| May | 14 | Moderate |
| Jun | 16 | Moderate |
| Jul | 19 | Moderate |
| Aug | 15 | Moderate |
| Sep | 11 | Good |
| Oct | 8 | Good |
| Nov | 8 | Good |
| Dec | 8 | Good |
Where is McKinney?
McKinney sits at 33.2°N, 96.6°W, 630 ft above sea level, in United States. The nearest listed city is Allen, 7.5 mi away.
Topography around McKinney
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of McKinney.
Within 2 miles, the terrain around McKinney has only modest variations in elevation — a maximum elevation change of 164 ft around an average of 594 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 318 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 722 ft.
The land around McKinney is covered by artificial surfaces (38%), trees (27%) and grassland (24%) within 2 miles, grassland (37%), trees (24%) and artificial surfaces (22%) within 10 miles, and grassland (47%) and trees (26%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for McKinney (33.1976°, -96.6153°, elevation 630 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).