Tempe weather in August: Tempe, Arizona: normal highs, lows, rain and records for August

Tempe in August has a normal high of 105°F and a normal low of 75°F, a daily mean of 90°F, holding near 105°F all month. Measurable precipitation falls on 5 days in a normal August, 1.30 inches in all. (NOAA 1991-2020 normals)

In metric: a normal high of 40°C and low of 24°C, 33 mm of precipitation in August.

  • NOAA stationTempe ASU
  • Station IDUSC00028499
  • Location33.43°N 111.92°W
  • Elevation1,167 ft (356 m)
  • From the center3 miles
  • Population190,114
  1. Jan 71° 39°
  2. Feb 74° 41°
  3. Mar 80° 46°
  4. Apr 87° 51°
  5. May 95° 59°
  6. Jun 104° 67°
  7. Jul 106° 76°
  8. Aug 105° 75°
  9. Sep 101° 69°
  10. Oct 91° 56°
  11. Nov 79° 45°
  12. Dec 69° 38°

Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.

How warm is Tempe in August?

The normal high is 105°F and the normal low 75°F, for a daily mean of 89.9°F. August is 1.0°F cooler than July and 5.0°F warmer than September. August is the 2nd warmest month of the year in Tempe and the 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 1.9°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 88°F and 92°F.

Tempe in August, day by day: normal high and low

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 15%).

Normal high and low on five days of August, with the chance of precipitation
DayHighLowChance of 0.01 inChance of 0.10 in
August 1105°F77°F15%8%
August 8105°F76°F15%9%
August 15105°F75°F15%9%
August 22105°F74°F14%9%
August 31104°F73°F13%8%
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 1, coldest night August 31)
Tempe: NOAA 1991-2020 daily normals for each day of August
DayHighLowChance of 0.01 inChance of 0.10 inDaylight
August 1105°F77°F15%8%13 h 50 min
August 2105°F77°F15%8%13 h 50 min
August 3105°F77°F15%8%13 h 50 min
August 4105°F77°F15%8%13 h 40 min
August 5105°F76°F15%8%13 h 40 min
August 6105°F76°F15%8%13 h 40 min
August 7105°F76°F15%8%13 h 40 min
August 8105°F76°F15%9%13 h 40 min
August 9105°F76°F15%9%13 h 40 min
August 10105°F76°F15%9%13 h 30 min
August 11105°F76°F15%9%13 h 30 min
August 12105°F76°F15%9%13 h 30 min
August 13105°F76°F15%9%13 h 30 min
August 14105°F75°F15%9%13 h 30 min
August 15105°F75°F15%9%13 h 30 min
August 16105°F75°F15%9%13 h 20 min
August 17105°F75°F14%9%13 h 20 min
August 18105°F75°F14%9%13 h 20 min
August 19105°F75°F14%9%13 h 20 min
August 20105°F75°F14%9%13 h 20 min
August 21105°F75°F14%9%13 h 10 min
August 22105°F74°F14%9%13 h 10 min
August 23105°F74°F14%9%13 h 10 min
August 24105°F74°F14%8%13 h 10 min
August 25105°F74°F14%8%13 h 10 min
August 26105°F74°F14%8%13 h 10 min
August 27104°F74°F14%8%13 h
August 28104°F74°F13%8%13 h
August 29104°F74°F13%8%13 h
August 30104°F73°F13%8%13 h
August 31104°F73°F13%8%13 h
Normal high
105°FAugust average
Normal low
75°FAugust average
Precipitation
1.30 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 USC00028499; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.

Does it rain in Tempe in August?

On a given August day the chance of 0.01 inch or more is 14% on average, highest around August 3 (15%). In all, 1.30 in falls on 5 days of a normal August.

In a normal August in Tempe, 31 days reach 90°F.

Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00028499.

What are the records for August in Tempe?

The warmest August temperature on this station's record (since 1948) is 119°F, on August 2, 1972; the coldest is 52°F, on August 23, 1968. The wettest August brought 5.04 in (1951).

The August mean against the 1991-2020 normal of 89.9°F: 2021 89.2°F (−0.7), 2022 87.8°F (−2.1), 2026 94.8°F (+4.9). 1 of 3 ran warmer than normal.

Tempe: August in recent years against the 1991-2020 normal
AugustMeanAgainst normalPrecip.
202189.2°F−0.7°F1.28 in
202287.8°F−2.1°F1.05 in
202694.8°F+4.9°F1.08 in

Source: records: ACIS, station USC00028499; recent months: ACIS, station USC00028499. Records and recent months use complete months only.

How does August in Tempe 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; Tempe's is 105°F.

Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.

Other months and places