Sierra Vista weather in August: Sierra Vista, Arizona: normal highs, lows, rain and records for August
Sierra Vista in August has a normal high of 90°F and a normal low of 62°F, a daily mean of 76°F, holding near 90°F all month. Measurable precipitation falls on 11 days in a normal August, 3.31 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 32°C and low of 16°C, 84 mm of precipitation in August.
- NOAA stationSierra Vista
- Station IDUSC00027880
- Location31.54°N 110.28°W
- Elevation4,606 ft (1,404 m)
- Population44,710
- Jan 61° 30°
- Feb 64° 33°
- Mar 71° 38°
- Apr 78° 43°
- May 85° 50°
- Jun 94° 60°
- Jul 92° 63°
- Aug 90° 62°
- Sep 87° 57°
- Oct 80° 47°
- Nov 70° 37°
- Dec 62° 30°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Sierra Vista in August?
The normal high is 90°F and the normal low 62°F, for a daily mean of 75.5°F. August is 1.5°F cooler than July and 3.8°F warmer than September. August is the 3rd warmest month of the year in Sierra Vista and the 2nd wettest. Across the month the normal high falls 1°F, from 90°F on August 1 to 89°F on August 31. From one year to the next August's mean temperature typically moves about 2.0°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 74°F and 78°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 39%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 90°F | 62°F | 39% | 26% |
| August 8 | 90°F | 62°F | 37% | 25% |
| August 15 | 90°F | 62°F | 35% | 23% |
| August 22 | 90°F | 61°F | 31% | 21% |
| August 31 | 89°F | 60°F | 26% | 17% |
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 14, coldest night August 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| August 1 | 90°F | 62°F | 39% | 26% | 13 h 40 min |
| August 2 | 90°F | 62°F | 39% | 26% | 13 h 40 min |
| August 3 | 90°F | 62°F | 39% | 26% | 13 h 40 min |
| August 4 | 90°F | 62°F | 39% | 26% | 13 h 40 min |
| August 5 | 90°F | 62°F | 38% | 25% | 13 h 40 min |
| August 6 | 90°F | 62°F | 38% | 25% | 13 h 30 min |
| August 7 | 90°F | 62°F | 38% | 25% | 13 h 30 min |
| August 8 | 90°F | 62°F | 37% | 25% | 13 h 30 min |
| August 9 | 90°F | 62°F | 37% | 25% | 13 h 30 min |
| August 10 | 90°F | 62°F | 37% | 24% | 13 h 30 min |
| August 11 | 90°F | 62°F | 36% | 24% | 13 h 30 min |
| August 12 | 90°F | 62°F | 36% | 24% | 13 h 30 min |
| August 13 | 90°F | 62°F | 36% | 23% | 13 h 20 min |
| August 14 | 90°F | 62°F | 35% | 23% | 13 h 20 min |
| August 15 | 90°F | 62°F | 35% | 23% | 13 h 20 min |
| August 16 | 90°F | 62°F | 34% | 23% | 13 h 20 min |
| August 17 | 90°F | 62°F | 34% | 22% | 13 h 20 min |
| August 18 | 90°F | 62°F | 33% | 22% | 13 h 20 min |
| August 19 | 90°F | 62°F | 33% | 22% | 13 h 10 min |
| August 20 | 90°F | 62°F | 32% | 21% | 13 h 10 min |
| August 21 | 90°F | 61°F | 32% | 21% | 13 h 10 min |
| August 22 | 90°F | 61°F | 31% | 21% | 13 h 10 min |
| August 23 | 90°F | 61°F | 31% | 20% | 13 h 10 min |
| August 24 | 90°F | 61°F | 30% | 20% | 13 h |
| August 25 | 90°F | 61°F | 30% | 19% | 13 h |
| August 26 | 90°F | 61°F | 29% | 19% | 13 h |
| August 27 | 89°F | 61°F | 28% | 19% | 13 h |
| August 28 | 89°F | 61°F | 28% | 18% | 13 h |
| August 29 | 89°F | 61°F | 27% | 18% | 13 h |
| August 30 | 89°F | 61°F | 27% | 18% | 12 h 50 min |
| August 31 | 89°F | 60°F | 26% | 17% | 12 h 50 min |
- Normal high
- 90°FAugust average
- Normal low
- 62°FAugust average
- Precipitation
- 3.31 inmonth total
- Days with precipitation
- 110.01 inch or more
- Days at 90°F or more
- 18
- Daylight
- 13 h 40 min to 12 h 50 minAugust 1 to August 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 30
- Sunshine
- 83%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00027880; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Sierra Vista in August?
On a given August day the chance of 0.01 inch or more is 34% on average, highest around August 1 (39%). In all, 3.31 in falls on 11 days of a normal August, 1 of them with an inch or more.
In a normal August in Sierra Vista, 18 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00027880.
What are the records for August in Sierra Vista?
The August mean against the 1991-2020 normal of 75.5°F: 2021 75.8°F (+0.3), 2022 75.1°F (−0.4), 2023 79.2°F (+3.7), 2025 79.2°F (+3.7), 2026 79.1°F (+3.6). 4 of 5 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 75.8°F | +0.3°F | 2.73 in |
| 2022 | 75.1°F | −0.4°F | 5.88 in |
| 2023 | 79.2°F | +3.7°F | 1.67 in |
| 2025 | 79.2°F | +3.7°F | 1.27 in |
| 2026 | 79.1°F | +3.6°F | 3.22 in |
Source: recent months: ACIS, station USC00027880. Records and recent months use complete months only.
How does August in Sierra Vista compare across Arizona?
Across the 97 places PlainClimate covers in Arizona, August normal highs run from 73°F in Greer to 109°F in Bullhead City; Sierra Vista's is 90°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Sierra Vista in July92°F by day, 63°F at night
- Sierra Vista in September87°F by day, 57°F at night
- Sierra Vista through the yearEvery month, frost dates, records and recent years
- Arizona in AugustThe statewide normal and the warmest and coolest places
- Bullhead City: Arizona's warmest Augustnormal high 109°F