Mesa weather in August: Mesa, Arizona: normal highs, lows, rain and records for August
Mesa in August has a normal high of 105°F and a normal low of 78°F, a daily mean of 92°F, holding near 105°F all month. Measurable precipitation falls on 5 days in a normal August, 1.29 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 40°C and low of 26°C, 33 mm of precipitation in August.
- NOAA stationEast Mesa
- Station IDUSC00022782
- Location33.42°N 111.64°W
- Elevation1,518 ft (463 m)
- From the center4 miles
- Population517,151
- Jan 68° 41°
- Feb 70° 43°
- Mar 77° 48°
- Apr 85° 53°
- May 94° 62°
- Jun 104° 71°
- Jul 106° 79°
- Aug 105° 78°
- Sep 100° 71°
- Oct 90° 59°
- Nov 77° 48°
- Dec 66° 40°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Mesa in August?
The normal high is 105°F and the normal low 78°F, for a daily mean of 91.5°F. August is 0.9°F cooler than July and 5.7°F warmer than September. August is the 2nd warmest month of the year in Mesa and the 4th wettest. Across the month the normal high falls 1°F, from 105°F on August 1 to 104°F on August 31. From one year to the next August's mean temperature typically moves about 1.8°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 90°F and 93°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 18%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 105°F | 80°F | 18% | 10% |
| August 8 | 105°F | 79°F | 18% | 10% |
| August 15 | 105°F | 79°F | 17% | 10% |
| August 22 | 105°F | 78°F | 16% | 9% |
| August 31 | 104°F | 76°F | 15% | 8% |
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 1, coldest night August 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| August 1 | 105°F | 80°F | 18% | 10% | 13 h 50 min |
| August 2 | 105°F | 80°F | 18% | 10% | 13 h 50 min |
| August 3 | 105°F | 80°F | 18% | 10% | 13 h 50 min |
| August 4 | 105°F | 80°F | 18% | 10% | 13 h 40 min |
| August 5 | 105°F | 80°F | 18% | 10% | 13 h 40 min |
| August 6 | 105°F | 80°F | 18% | 10% | 13 h 40 min |
| August 7 | 105°F | 79°F | 18% | 10% | 13 h 40 min |
| August 8 | 105°F | 79°F | 18% | 10% | 13 h 40 min |
| August 9 | 105°F | 79°F | 18% | 10% | 13 h 40 min |
| August 10 | 105°F | 79°F | 18% | 10% | 13 h 30 min |
| August 11 | 105°F | 79°F | 18% | 10% | 13 h 30 min |
| August 12 | 105°F | 79°F | 18% | 10% | 13 h 30 min |
| August 13 | 105°F | 79°F | 17% | 10% | 13 h 30 min |
| August 14 | 105°F | 79°F | 17% | 10% | 13 h 30 min |
| August 15 | 105°F | 79°F | 17% | 10% | 13 h 30 min |
| August 16 | 105°F | 79°F | 17% | 10% | 13 h 20 min |
| August 17 | 105°F | 79°F | 17% | 10% | 13 h 20 min |
| August 18 | 105°F | 78°F | 17% | 10% | 13 h 20 min |
| August 19 | 105°F | 78°F | 17% | 10% | 13 h 20 min |
| August 20 | 105°F | 78°F | 17% | 9% | 13 h 20 min |
| August 21 | 105°F | 78°F | 16% | 9% | 13 h 10 min |
| August 22 | 105°F | 78°F | 16% | 9% | 13 h 10 min |
| August 23 | 105°F | 78°F | 16% | 9% | 13 h 10 min |
| August 24 | 105°F | 78°F | 16% | 9% | 13 h 10 min |
| August 25 | 105°F | 77°F | 16% | 9% | 13 h 10 min |
| August 26 | 105°F | 77°F | 16% | 9% | 13 h 10 min |
| August 27 | 104°F | 77°F | 16% | 9% | 13 h |
| August 28 | 104°F | 77°F | 15% | 9% | 13 h |
| August 29 | 104°F | 77°F | 15% | 9% | 13 h |
| August 30 | 104°F | 77°F | 15% | 9% | 13 h |
| August 31 | 104°F | 76°F | 15% | 8% | 13 h |
- Normal high
- 105°FAugust average
- Normal low
- 78°FAugust average
- Precipitation
- 1.29 inmonth total
- Days with precipitation
- 50.01 inch or more
- Days at 90°F or more
- 31
- Daylight
- 13 h 50 min to 13 hAugust 1 to August 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 31
- Sunshine
- 91%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00022782; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Mesa in August?
On a given August day the chance of 0.01 inch or more is 17% on average, highest around August 1 (18%). In all, 1.29 in falls on 5 days of a normal August.
In a normal August in Mesa, 31 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00022782.
What are the records for August in Mesa?
The warmest August temperature on this station's record (since 2002) is 117°F, on August 13, 2012; the coldest is 65°F, on August 26, 2002. The wettest August brought 5.89 in (2021).
The August mean against the 1991-2020 normal of 91.5°F: 2021 88.8°F (−2.7), 2022 90.6°F (−0.9), 2023 94.0°F (+2.5), 2024 95.0°F (+3.5), 2025 94.7°F (+3.2), 2026 96.3°F (+4.8). 4 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 88.8°F | −2.7°F | 5.89 in |
| 2022 | 90.6°F | −0.9°F | 1.66 in |
| 2023 | 94.0°F | +2.5°F | 1.74 in |
| 2024 | 95.0°F | +3.5°F | 0.77 in |
| 2025 | 94.7°F | +3.2°F | 1.37 in |
| 2026 | 96.3°F | +4.8°F | 1.22 in |
Source: records: ACIS, station USC00022782; recent months: ACIS, station USC00022782. Records and recent months use complete months only.
How does August in Mesa 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; Mesa's is 105°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.