Round Rock weather in July
In July, Round Rock sees average daytime highs of 95°F and overnight lows near 75°F, with 1.6 in of rain across 5.8 wet days and about 13.8 hours of daylight. It is the 2nd-warmest and 12th-wettest month of the year here.
Highs climb over the month, from about 93°F in the first days to 96°F by the end. The sky is clear or mostly clear about 49% of the time in July, and the air most often feels muggy.
Daylight stretches from about 13 h 54 min at the start of July to 13 h 30 min by month's end. Set against the rest of the year, July is Round Rock's 4th-clearest and 9th-windiest month. For the whole year in context, see Round Rock's year-round climate.
- Daytime high
- 95°
- 2nd warmest
- Overnight low
- 75°
- 12th coldest
- Rainfall
- 1.6 in
- 5.8 wet days
- Daylight
- 13 h 48 min
- 5:43 AM – 7:30 PM
- Cloud cover
- 45%
- 4th clearest
- Wind
- 7 mph
- 9th windiest
- Solar energy
- 6.77 kWh/m²
- Travel score
- 2.9
- out of 10
Round Rock is city in Travis and Williamson counties in Texas, United States.
- Density
- 1,249/km²
- people per km²
- Founded
- 1851
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in July
Highs climb over the month, from about 93°F in the first days to 96°F by the end.
A typical July day in Round Rock reaches about 95°F in the afternoon and slips back to 75°F overnight — a 20°F spread between the day's warmth and the night's chill. On most days the high lands between 89°F and 100°F. Set against its neighbours, July runs about 4°F warmer than June and on par with August.
| 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) | 93 | 93 | 93 | 93 | 93 | 93 | 94 | 94 | 94 | 94 | 94 | 94 | 94 | 95 | 95 | 95 | 95 | 95 | 95 | 95 | 95 | 95 | 96 | 96 | 96 | 96 | 96 | 96 | 96 | 96 | 96 |
| Avg low (°F) | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 93 | 74 |
| 2 | 93 | 74 |
| 3 | 93 | 74 |
| 4 | 93 | 74 |
| 5 | 93 | 74 |
| 6 | 93 | 74 |
| 7 | 94 | 74 |
| 8 | 94 | 74 |
| 9 | 94 | 74 |
| 10 | 94 | 74 |
| 11 | 94 | 75 |
| 12 | 94 | 75 |
| 13 | 94 | 75 |
| 14 | 95 | 75 |
| 15 | 95 | 75 |
| 16 | 95 | 75 |
| 17 | 95 | 75 |
| 18 | 95 | 75 |
| 19 | 95 | 75 |
| 20 | 95 | 75 |
| 21 | 95 | 75 |
| 22 | 95 | 75 |
| 23 | 96 | 75 |
| 24 | 96 | 75 |
| 25 | 96 | 75 |
| 26 | 96 | 75 |
| 27 | 96 | 75 |
| 28 | 96 | 75 |
| 29 | 96 | 75 |
| 30 | 96 | 75 |
| 31 | 96 | 75 |
How July really feels in Round Rock
Once humidity and wind are folded in, July 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 July is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Round Rock weather by month
How July compares with the rest of the year at a glance. July is the 2nd-warmest and 12th-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 60° / 41° | 2.3 | 6.8 | 10.3 | 5.4 |
| Feb | 64° / 45° | 2.4 | 7.3 | 10.9 | 6.2 |
| Mar | 71° / 51° | 2.9 | 8.8 | 11.8 | 6.9 |
| Apr | 78° / 58° | 3.0 | 8.2 | 12.7 | 7.1 |
| May | 85° / 66° | 4.3 | 10.8 | 13.5 | 5.3 |
| Jun | 91° / 73° | 2.8 | 8.7 | 13.9 | 3.8 |
| Jul | 95° / 75° | 1.6 | 5.8 | 13.8 | 2.9 |
| Aug | 95° / 75° | 2.1 | 5.8 | 13.1 | 2.9 |
| Sep | 89° / 69° | 2.9 | 7.4 | 12.2 | 4.6 |
| Oct | 80° / 60° | 3.4 | 7.1 | 11.3 | 7.1 |
| Nov | 69° / 50° | 2.7 | 6.6 | 10.5 | 7.1 |
| Dec | 62° / 43° | 2.8 | 7.5 | 10.1 | 5.7 |
Cloud cover in July
The sky is clear or mostly clear about 49% of the time in July.
Beyond those clear spells, partly cloudy skies cover about 21% of July, with mostly cloudy or overcast conditions the remaining 30%. Skies tend to open up as the month goes on.
| 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 (%) | 66 | 66 | 66 | 67 | 67 | 68 | 68 | 69 | 69 | 69 | 70 | 70 | 70 | 71 | 71 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 71 | 72 | 72 | 72 | 72 | 74 |
| Cloudier (%) | 34 | 34 | 34 | 33 | 33 | 32 | 32 | 31 | 31 | 31 | 30 | 30 | 30 | 29 | 29 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 29 | 28 | 28 | 28 | 28 | 26 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 66 | 34 |
| 2 | 66 | 34 |
| 3 | 66 | 34 |
| 4 | 67 | 33 |
| 5 | 67 | 33 |
| 6 | 68 | 32 |
| 7 | 68 | 32 |
| 8 | 69 | 31 |
| 9 | 69 | 31 |
| 10 | 69 | 31 |
| 11 | 70 | 30 |
| 12 | 70 | 30 |
| 13 | 70 | 30 |
| 14 | 71 | 29 |
| 15 | 71 | 29 |
| 16 | 70 | 30 |
| 17 | 70 | 30 |
| 18 | 70 | 30 |
| 19 | 70 | 30 |
| 20 | 70 | 30 |
| 21 | 70 | 30 |
| 22 | 70 | 30 |
| 23 | 70 | 30 |
| 24 | 70 | 30 |
| 25 | 70 | 30 |
| 26 | 71 | 29 |
| 27 | 72 | 28 |
| 28 | 72 | 28 |
| 29 | 72 | 28 |
| 30 | 72 | 28 |
| 31 | 74 | 26 |
Chance of precipitation in July
Round Rock gets around 1.6 in of rain over 5.8 wet days in July, the driest month. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 19% and peaks near 26% on the wettest days. The odds ease toward the end of the month.
| 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 (%) | 26 | 26 | 25 | 24 | 23 | 22 | 21 | 21 | 20 | 20 | 19 | 19 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 14 |
| Rain chance (%) | |
|---|---|
| 1 | 26 |
| 2 | 26 |
| 3 | 25 |
| 4 | 24 |
| 5 | 23 |
| 6 | 22 |
| 7 | 21 |
| 8 | 21 |
| 9 | 20 |
| 10 | 20 |
| 11 | 19 |
| 12 | 19 |
| 13 | 18 |
| 14 | 18 |
| 15 | 18 |
| 16 | 17 |
| 17 | 17 |
| 18 | 17 |
| 19 | 17 |
| 20 | 17 |
| 21 | 17 |
| 22 | 17 |
| 23 | 17 |
| 24 | 16 |
| 25 | 16 |
| 26 | 16 |
| 27 | 15 |
| 28 | 15 |
| 29 | 15 |
| 30 | 15 |
| 31 | 14 |
Humidity in July
Most of July feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, July lands in the muggy band about 49% of days. Sticky, muggy-or-worse air turns up on roughly 88% 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 (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Comfortable (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 2 | 2 |
| Humid (%) | 8 | 8 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 |
| Muggy (%) | 36 | 37 | 38 | 40 | 41 | 42 | 43 | 45 | 46 | 47 | 48 | 48 | 49 | 50 | 50 | 51 | 52 | 53 | 52 | 52 | 52 | 53 | 53 | 53 | 54 | 54 | 54 | 54 | 55 | 57 | 57 |
| Oppressive (%) | 53 | 52 | 52 | 50 | 49 | 48 | 46 | 46 | 45 | 44 | 43 | 42 | 41 | 40 | 39 | 38 | 37 | 36 | 36 | 35 | 35 | 34 | 33 | 32 | 31 | 30 | 29 | 29 | 28 | 27 | 27 |
| Miserable (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 1 | 1 | 8 | 36 | 53 | 1 |
| 2 | 1 | 1 | 8 | 37 | 52 | 1 |
| 3 | 1 | 1 | 7 | 38 | 52 | 1 |
| 4 | 1 | 1 | 7 | 40 | 50 | 1 |
| 5 | 1 | 1 | 7 | 41 | 49 | 1 |
| 6 | 1 | 1 | 7 | 42 | 48 | 1 |
| 7 | 1 | 1 | 8 | 43 | 46 | 1 |
| 8 | 1 | 1 | 8 | 45 | 46 | 0 |
| 9 | 0 | 0 | 8 | 46 | 45 | 0 |
| 10 | 0 | 0 | 9 | 47 | 44 | 0 |
| 11 | 0 | 0 | 9 | 48 | 43 | 0 |
| 12 | 0 | 0 | 9 | 48 | 42 | 0 |
| 13 | 0 | 0 | 9 | 49 | 41 | 0 |
| 14 | 0 | 1 | 10 | 50 | 40 | 0 |
| 15 | 0 | 1 | 10 | 50 | 39 | 0 |
| 16 | 0 | 1 | 10 | 51 | 38 | 0 |
| 17 | 0 | 1 | 10 | 52 | 37 | 0 |
| 18 | 0 | 1 | 10 | 53 | 36 | 0 |
| 19 | 0 | 1 | 11 | 52 | 36 | 0 |
| 20 | 0 | 2 | 11 | 52 | 35 | 0 |
| 21 | 0 | 2 | 11 | 52 | 35 | 0 |
| 22 | 0 | 2 | 11 | 53 | 34 | 0 |
| 23 | 1 | 2 | 11 | 53 | 33 | 0 |
| 24 | 1 | 2 | 12 | 53 | 32 | 0 |
| 25 | 1 | 2 | 12 | 54 | 31 | 0 |
| 26 | 1 | 3 | 12 | 54 | 30 | 0 |
| 27 | 1 | 3 | 13 | 54 | 29 | 0 |
| 28 | 1 | 3 | 13 | 54 | 29 | 0 |
| 29 | 1 | 3 | 13 | 55 | 28 | 0 |
| 30 | 1 | 2 | 13 | 57 | 27 | 0 |
| 31 | 1 | 2 | 13 | 57 | 27 | 0 |
Wind in July
Winds average 7 mph in July.
Across July, daily wind ranges from about 7 mph on the calmest days to 8 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) | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 8 | light breeze |
| 2 | 8 | light breeze |
| 3 | 8 | light breeze |
| 4 | 8 | light breeze |
| 5 | 8 | light breeze |
| 6 | 8 | light breeze |
| 7 | 8 | light breeze |
| 8 | 8 | light breeze |
| 9 | 8 | light breeze |
| 10 | 8 | light breeze |
| 11 | 8 | light breeze |
| 12 | 7 | light breeze |
| 13 | 7 | light breeze |
| 14 | 7 | light breeze |
| 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 July
Daylight runs from about 13 h 54 min at the start of July to 13 h 30 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 24 minutes over July. Sunrise moves from 5:36 AM to 5:51 AM, and sunset from 7:33 PM to 7:22 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) | 13.9 | 13.9 | 13.9 | 13.9 | 13.9 | 13.9 | 13.9 | 13.9 | 13.9 | 13.9 | 13.9 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.7 | 13.7 | 13.7 | 13.7 | 13.7 | 13.7 | 13.6 | 13.6 | 13.6 | 13.6 | 13.6 | 13.5 | 13.5 |
| Sunrise (AM) | 5:36 | 5:36 | 5:36 | 5:37 | 5:37 | 5:38 | 5:38 | 5:38 | 5:39 | 5:39 | 5:40 | 5:40 | 5:41 | 5:41 | 5:42 | 5:43 | 5:43 | 5:44 | 5:44 | 5:45 | 5:45 | 5:46 | 5:47 | 5:47 | 5:48 | 5:48 | 5:49 | 5:50 | 5:50 | 5:51 | 5:51 |
| Sunset (PM) | 7:33 | 7:33 | 7:33 | 7:32 | 7:32 | 7:32 | 7:32 | 7:32 | 7:32 | 7:32 | 7:32 | 7:31 | 7:31 | 7:31 | 7:30 | 7:30 | 7:30 | 7:29 | 7:29 | 7:29 | 7:28 | 7:28 | 7:27 | 7:27 | 7:26 | 7:25 | 7:25 | 7:24 | 7:24 | 7:23 | 7:22 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.9 | 5:36 | 7:33 |
| 2 | 13.9 | 5:36 | 7:33 |
| 3 | 13.9 | 5:36 | 7:33 |
| 4 | 13.9 | 5:37 | 7:32 |
| 5 | 13.9 | 5:37 | 7:32 |
| 6 | 13.9 | 5:38 | 7:32 |
| 7 | 13.9 | 5:38 | 7:32 |
| 8 | 13.9 | 5:38 | 7:32 |
| 9 | 13.9 | 5:39 | 7:32 |
| 10 | 13.9 | 5:39 | 7:32 |
| 11 | 13.9 | 5:40 | 7:32 |
| 12 | 13.8 | 5:40 | 7:31 |
| 13 | 13.8 | 5:41 | 7:31 |
| 14 | 13.8 | 5:41 | 7:31 |
| 15 | 13.8 | 5:42 | 7:30 |
| 16 | 13.8 | 5:43 | 7:30 |
| 17 | 13.8 | 5:43 | 7:30 |
| 18 | 13.8 | 5:44 | 7:29 |
| 19 | 13.7 | 5:44 | 7:29 |
| 20 | 13.7 | 5:45 | 7:29 |
| 21 | 13.7 | 5:45 | 7:28 |
| 22 | 13.7 | 5:46 | 7:28 |
| 23 | 13.7 | 5:47 | 7:27 |
| 24 | 13.7 | 5:47 | 7:27 |
| 25 | 13.6 | 5:48 | 7:26 |
| 26 | 13.6 | 5:48 | 7:25 |
| 27 | 13.6 | 5:49 | 7:25 |
| 28 | 13.6 | 5:50 | 7:24 |
| 29 | 13.6 | 5:50 | 7:24 |
| 30 | 13.5 | 5:51 | 7:23 |
| 31 | 13.5 | 5:51 | 7:22 |
Solar energy in July
Average shortwave solar energy reaching the ground each day in July, about 6.77 kWh/m² — the sunniest month for solar.
For context, solar energy here swings from a low near 2.69 kWh/m² to a high of 6.77 kWh/m² in July across the year — July's 6.77 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) | 6.5 | 6.5 | 6.6 | 6.6 | 6.6 | 6.6 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.5 | Intense |
| 2 | 6.5 | Intense |
| 3 | 6.6 | Intense |
| 4 | 6.6 | Intense |
| 5 | 6.6 | Intense |
| 6 | 6.6 | Intense |
| 7 | 6.7 | Intense |
| 8 | 6.7 | Intense |
| 9 | 6.7 | Intense |
| 10 | 6.7 | Intense |
| 11 | 6.7 | Intense |
| 12 | 6.8 | Intense |
| 13 | 6.8 | Intense |
| 14 | 6.8 | Intense |
| 15 | 6.8 | Intense |
| 16 | 6.8 | Intense |
| 17 | 6.8 | Intense |
| 18 | 6.8 | Intense |
| 19 | 6.8 | Intense |
| 20 | 6.8 | Intense |
| 21 | 6.8 | Intense |
| 22 | 6.8 | Intense |
| 23 | 6.8 | Intense |
| 24 | 6.8 | Intense |
| 25 | 6.8 | Intense |
| 26 | 6.8 | Intense |
| 27 | 6.8 | Intense |
| 28 | 6.8 | Intense |
| 29 | 6.8 | Intense |
| 30 | 6.8 | Intense |
| 31 | 6.8 | Intense |
Is July a good time to visit Round Rock?
Our two travel scores rate July for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
July is a weaker month for outdoor sightseeing in Round Rock. The water and warmth also suit a beach or pool day.
What to pack for Round Rock in July
From July's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In July, Round Rock sees daytime highs around 95°F and nights near 75°F. Pack light clothes and sun protection. About 6 days see rain.
UV index in Round Rock in July
Clear-sky midday UV in July peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Round Rock peaks around July 24 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 4 (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) | 4 | 6 | 7 | 10 | 10 | 10 | 11 | 11 | 8 | 6 | 5 | 4 |
| Level | Moderate | High | High | Very high | Extreme | Extreme | Extreme | Extreme | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 6 | High |
| Mar | 7 | High |
| Apr | 10 | Very high |
| May | 10 | Extreme |
| Jun | 10 | Extreme |
| Jul | 11 | Extreme |
| Aug | 11 | Extreme |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 5 | Moderate |
| Dec | 4 | Moderate |
Air quality in Round Rock in July
Average fine-particle pollution (PM2.5) through the year — so you can see where July falls, not just the annual average.
Air quality in Round Rock is worst in July — around 18 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (December, 7 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) | 7 | 7 | 9 | 10 | 14 | 15 | 18 | 13 | 10 | 7 | 7 | 7 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 7 | Good |
| Feb | 7 | Good |
| Mar | 9 | Good |
| Apr | 10 | Good |
| May | 14 | Moderate |
| Jun | 15 | Moderate |
| Jul | 18 | Moderate |
| Aug | 13 | Moderate |
| Sep | 10 | Good |
| Oct | 7 | Good |
| Nov | 7 | Good |
| Dec | 7 | Good |
Where is Round Rock?
Round Rock sits at 30.5°N, 97.7°W, 735 ft above sea level, in United States. The nearest listed city is Brushy Creek, 3.7 mi away.
Topography around Round Rock
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Round Rock.
Within 2 miles, the terrain around Round Rock has only modest variations in elevation — a maximum elevation change of 220 ft around an average of 751 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 492 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,519 ft.
The land around Round Rock is covered by artificial surfaces (50%) and trees (32%) within 2 miles, trees (31%), grassland (30%) and artificial surfaces (29%) within 10 miles, and grassland (44%) and trees (42%) 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 Round Rock (30.5083°, -97.6789°, elevation 735 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).