Peoria, AZ weather in August
Peoria is very hot and mostly dry in August: highs average 104°F and nights drop to about 79°F. Expect about 4 wet days. This is the peak of the warm season in Peoria. Midday heat is the main thing to plan around.
- Normal high
- 104°F
- Normal low
- 79°F
- Wet days
- 4
- 1.0 in total
- Muggy days
- 5
- dew point 65°F+
How August changes from start to finish
| August 1 | August 31 | |
|---|---|---|
| Normal high | 104°F | 102°F |
| Normal low | 81°F | 77°F |
| Chance of a wet day | 12% | 11% |
| Sunrise / sunset | 5:41 am / 7:29 pm | 6:02 am / 6:56 pm |
| Daylight | 13.8 h | 12.9 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Arizona time (no daylight saving)).
A typical August day
- 6 am85°Fdew point 61°F
- 9 am91°Fdew point 60°F
- Noon98°Fdew point 58°F
- 3 pm103°Fdew point 56°F
- 6 pm102°Fdew point 55°F
- 9 pm96°Fdew point 57°F
NOAA hourly normals (local standard time) from Phoenix Sky Harbor Intl Airport (17 mi away); average wind 7 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F0 of 31
- Hot dayshigh 90°F or more31 of 31
- Muggy daysdaily mean dew point 65°F or more5 of 31
- Wet daysat least 0.01 in of rain or melted snow4 of 31
- Notable rainat least 0.10 in2 of 31
- Freezing nightslow 32°F or below0 of 31
Average days per August, counted from daily records for each year 1991-2020.
Rain in August
Normal precipitation is 1.0 in; a dry August brings about 0.4 in and a wet one about 1.5 in (25th and 75th percentiles). About 1 day brings half an inch or more.
How August varies from year to year
- Warmest August, 1991-20202020: average high 110°F
- Coolest August2014: average high 103°F
- Wettest August2018: 2.1 in
- Driest August2002: 0.1 in
- Highest reading116°F (August 14, 2020)
- Lowest reading64°F (August 25, 2002)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
August compared with July and September
| July | August | September | |
|---|---|---|---|
| Normal high | 105°F | 104°F | 98°F |
| Normal low | 80°F | 79°F | 73°F |
| Wet days | 3 | 4 | 2 |
| Comfortable days | 0 | 0 | 0 |
| Daylight | 14.1 h | 13.4 h | 12.4 h |
Highs change by -1°F from July and -6°F into September.
Nearby alternatives in August
- Drier: Palm Springs, CA248 mi · high 108°F · 1 wet day
- Cooler: Sedona, AZ93 mi · high 94°F · 9 wet days
How Peoria ranks in August
- Normal high10th warmest of 378 cities; 8th of 13 in Arizona
- Wet days76th driest of 378
- Comfortable days264th most of 341
What to pack for Peoria in August
- Light, breathable clothing – highs near 104°F and about 5 muggy days
- Layers – afternoons near 104°F but nights near 79°F
Heating and cooling
August has 0 heating degree days and 818 cooling degree days (base 65°F), 16% of the year's total heating and cooling demand.
Questions
How hot is Peoria in August?
The normal high is 104°F and the normal low is 79°F. From 1991 to 2020 the hottest August reading was 116°F (most recently on August 14, 2020).
Does it rain a lot in Peoria in August?
About 4 days in August have at least 0.01 in of precipitation, and the normal total is 1.0 in. The wettest August in 1991-2020 was in 2018 (2.1 in); the driest was in 2002 (0.1 in).
Is August a good time to visit Peoria?
August ranks 11th of 12 months on our comfort score for Peoria (34 out of 100). It has almost no comfortable days and about 31 days at 90°F or hotter. The best months are January and February.
Where the numbers come from
- Temperature, rain, snowfall, snow depth and frost dates: Youngtown (USC00029634), 3.8 mi WNW of the city center, 1,135 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour: Phoenix Sky Harbor Intl Airport (USW00023183), 17 mi SE of the city center, 1,107 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Phoenix Sky Harbor Intl Airport (722780-23183), 17 mi SE of the city center, 1,113 ft . Hourly observations, 1991-2020.
- Not available for this location: cloud cover (no station close enough or similar enough in elevation).