Prescott weather in September: Prescott, Arizona: normal highs, lows, rain and records for September
Prescott in September has a normal high of 83°F and a normal low of 54°F, a daily mean of 69°F, falling from 87°F on the 1st to 79°F by the 30th. Measurable precipitation falls on 6 days in a normal September, 1.27 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 29°C and low of 12°C, 32 mm of precipitation in September.
- NOAA stationPrescott Love Field
- Station IDUSW00023184
- Location34.65°N 112.42°W
- Elevation5,042 ft (1,537 m)
- From the center4 miles
- Population48,224
- Jan 53° 26°
- Feb 56° 29°
- Mar 62° 34°
- Apr 69° 39°
- May 77° 47°
- Jun 88° 56°
- Jul 90° 63°
- Aug 88° 61°
- Sep 83° 54°
- Oct 73° 42°
- Nov 62° 32°
- Dec 52° 26°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Prescott in September?
The normal high is 83°F and the normal low 54°F, for a daily mean of 68.7°F. September is 6.1°F cooler than August and 10.9°F warmer than October. September is the 4th warmest month of the year in Prescott and the 4th wettest. Across the month the normal high falls 8°F, from 87°F on September 1 to 79°F on September 30. From one year to the next September's mean temperature typically moves about 1.7°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 67°F and 70°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 27%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 87°F | 59°F | 27% | 14% |
| September 8 | 86°F | 57°F | 24% | 12% |
| September 15 | 84°F | 55°F | 20% | 10% |
| September 22 | 82°F | 52°F | 15% | 7% |
| September 30 | 79°F | 49°F | 12% | 6% |
Every day of September: normal high, low and chance of precipitation (warmest afternoon September 1, coldest night September 30)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| September 1 | 87°F | 59°F | 27% | 14% | 13 h |
| September 2 | 87°F | 59°F | 27% | 14% | 12 h 50 min |
| September 3 | 87°F | 58°F | 26% | 13% | 12 h 50 min |
| September 4 | 86°F | 58°F | 26% | 13% | 12 h 50 min |
| September 5 | 86°F | 58°F | 26% | 13% | 12 h 50 min |
| September 6 | 86°F | 58°F | 25% | 13% | 12 h 50 min |
| September 7 | 86°F | 57°F | 25% | 12% | 12 h 40 min |
| September 8 | 86°F | 57°F | 24% | 12% | 12 h 40 min |
| September 9 | 85°F | 57°F | 24% | 12% | 12 h 40 min |
| September 10 | 85°F | 56°F | 23% | 11% | 12 h 40 min |
| September 11 | 85°F | 56°F | 22% | 11% | 12 h 40 min |
| September 12 | 85°F | 56°F | 22% | 11% | 12 h 30 min |
| September 13 | 84°F | 55°F | 21% | 10% | 12 h 30 min |
| September 14 | 84°F | 55°F | 20% | 10% | 12 h 30 min |
| September 15 | 84°F | 55°F | 20% | 10% | 12 h 30 min |
| September 16 | 84°F | 54°F | 19% | 9% | 12 h 20 min |
| September 17 | 83°F | 54°F | 18% | 9% | 12 h 20 min |
| September 18 | 83°F | 54°F | 18% | 9% | 12 h 20 min |
| September 19 | 83°F | 53°F | 17% | 8% | 12 h 20 min |
| September 20 | 82°F | 53°F | 16% | 8% | 12 h 20 min |
| September 21 | 82°F | 52°F | 16% | 8% | 12 h 10 min |
| September 22 | 82°F | 52°F | 15% | 7% | 12 h 10 min |
| September 23 | 81°F | 52°F | 15% | 7% | 12 h 10 min |
| September 24 | 81°F | 51°F | 14% | 7% | 12 h 10 min |
| September 25 | 81°F | 51°F | 14% | 7% | 12 h 10 min |
| September 26 | 80°F | 50°F | 14% | 7% | 12 h |
| September 27 | 80°F | 50°F | 13% | 6% | 12 h |
| September 28 | 80°F | 49°F | 13% | 6% | 12 h |
| September 29 | 79°F | 49°F | 13% | 6% | 12 h |
| September 30 | 79°F | 49°F | 12% | 6% | 11 h 50 min |
- Normal high
- 83°FSeptember average
- Normal low
- 54°FSeptember average
- Precipitation
- 1.27 inmonth total
- Days with precipitation
- 60.01 inch or more
- Days at 90°F or more
- 4
- Daylight
- 13 h to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 29
- Days at 80°F or more
- 23
- Sunshine
- 90%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00023184; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Prescott in September?
On a given September day the chance of 0.01 inch or more is 19% on average, highest around September 1 (27%). In all, 1.27 in falls on 6 days of a normal September.
In a normal September in Prescott, 4 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00023184.
How humid and windy is Prescott in September?
At 3 p.m. the normal temperature is 78°F with 20% relative humidity and a dew point of 34°F; at 6 a.m. it is 51°F with 57% humidity. The wind averages 6.8 mph, most often from the south-southwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 51°F | 36°F | 57% | 5.2 mph | 87% |
| 9 a.m. | 65°F | 37°F | 36% | 4.7 mph | 85% |
| noon | 75°F | 35°F | 23% | 8.6 mph | 76% |
| 3 p.m. | 78°F | 34°F | 20% | 9.8 mph | 69% |
| 6 p.m. | 73°F | 34°F | 24% | 8.3 mph | 77% |
| 9 p.m. | 62°F | 37°F | 39% | 6.2 mph | 92% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00023184. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for September in Prescott?
The warmest September temperature on this station's record (since 1948) is 101°F, on September 1, 1950; the coldest is 32°F, on September 20, 1978. The wettest September brought 8.60 in (1983).
The September mean against the 1991-2020 normal of 68.7°F: 2021 69.5°F (+0.8), 2022 70.0°F (+1.3), 2023 68.6°F (−0.1), 2024 72.1°F (+3.4), 2025 68.7°F (at normal), 2026 71.4°F (+2.7). 4 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 69.5°F | +0.8°F | 1.78 in |
| 2022 | 70.0°F | +1.3°F | 1.84 in |
| 2023 | 68.6°F | −0.1°F | 0.61 in |
| 2024 | 72.1°F | +3.4°F | 0.33 in |
| 2025 | 68.7°F | at normal | 1.28 in |
| 2026 | 71.4°F | +2.7°F | 3.57 in |
Source: records: ACIS, station USW00023184; recent months: ACIS, station USW00023184. Records and recent months use complete months only.
How does September in Prescott compare across Arizona?
Across the 97 places PlainClimate covers in Arizona, September normal highs run from 70°F in Greer to 104°F in Tacna; Prescott's is 83°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.