September weather forecast
Prescott Valley, AZ

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Weather in September

September exhibits a gradual cooling trend in Prescott Valley, with temperatures beginning to fluctuate from the summer heights. Shifting away from August, September provides relief from the heights of summer heat. The average high temperature reduces to a less intense 79.7°F (26.5°C), bringing a respite to the previous hot months. As the monsoon season comes to an end, rainfall also reduces significantly compared to August. These cooler and lighter rainy conditions signify the steady transition towards autumn in Prescott Valley.

Temperature

September witnesses a gentle descent in average high-temperature, descending from August's 85.1°F (29.5°C) to a still moderately hot 79.7°F (26.5°C). Throughout September, an average low-temperature of 59°F (15°C) is expected.

Humidity

The average relative humidity in September in Prescott Valley is 42%.

Rainfall

In Prescott Valley, in September, it is raining for 9.8 days, with typically 1.69" (43mm) of accumulated precipitation. In Prescott Valley, Arizona, during the entire year, the rain falls for 76.9 days and collects up to 16.46" (418mm) of precipitation.

Snowfall

May through October are months without snowfall in Prescott Valley.

Daylight

In September, the average length of the day is 12h and 23min.
On the first day of the month, sunrise is at 6:02 am and sunset at 6:55 pm. On the last day of September, in Prescott Valley, sunrise is at 6:23 am and sunset at 6:14 pm MST.

Sunshine

In Prescott Valley, the average sunshine in September is 9.8h.

UV index

In Prescott Valley, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.
Note: An average UV index of 5 in September transforms into this advice:
Be vigilant - A duty to shield skin and eyes from injury exists. It's recommended to limit sun exposure when its radiation is at its peak during midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
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Frequently asked questions

What is the average September temperature in Prescott Valley?

The high-temperature, in September, in Prescott Valley, is 79.7°F (26.5°C), while the low-temperature averages to 59°F (15°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in August is evaluated at 86°F (30°C).

What is the average humidity in September in Prescott Valley?

In Prescott Valley, the average relative humidity in September is 42%.

How much does it rain in Prescott Valley in September?

In Prescott Valley, Arizona, in September, during 9.8 rainfall days, 1.69" (43mm) of precipitation is typically accumulated.

When it does not snow in Prescott Valley?

In Prescott Valley, snow does not fall in May through October.

What is the average length of the day in September in Prescott Valley?

In September, the average day length in Prescott Valley is 12h and 23min.

When are sunrise and sunset in September in Prescott Valley?

In September, on the first day of the month, sunrise is at 6:02 am and sunset at 6:55 pm. On the last day of the month, in Prescott Valley, Arizona, sunrise is at 6:23 am and sunset at 6:14 pm MST.

How long on average sun shines in September in Prescott Valley?

In September, the average sunshine duration is 9.8h.

What is the UV index intensity in September in Prescott Valley?

In Prescott Valley, Arizona, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Prescott Valley, AZ

Average temperature in September - Prescott Valley, AZ
  • Average high temperature in September: 79.7°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is December (49.1°F).

  • Average low temperature in September: 59°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is December (30.7°F).

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Average pressure in September
Prescott Valley, AZ

Average pressure in September - Prescott Valley, AZ
  • Average pressure in September: 29.9"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

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Average wind speed in September
Prescott Valley, AZ

Average wind speed in September - Prescott Valley, AZ
  • Average wind speed in September: 5.8mph

The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

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Average humidity in September
Prescott Valley, AZ

Average humidity in September - Prescott Valley, AZ
  • Average humidity in September: 42%

The month with the highest relative humidity is December (58%).
The month with the lowest relative humidity is June (23%).

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Average rainfall in September
Prescott Valley, AZ

Average rainfall in September - Prescott Valley, AZ
  • Average rainfall in September: 1.69"

The wettest month (with the highest rainfall) is July (4.33").
The driest month (with the least rainfall) is June (0.24").

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Average rainfall days in September
Prescott Valley, AZ

Average rainfall days in September - Prescott Valley, AZ
  • Average rainfall days in September: 9.8 days

The months with the highest number of rainy days are July and August (15.5 days).
The month with the least rainy days is June (2.3 days).

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Average snowfall in September
Prescott Valley, AZ

Average snowfall in September - Prescott Valley, AZ
  • Average snowfall in September: 0"

The month with the highest snowfall is December (4.13").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Prescott Valley, AZ

Average snowfall days in September - Prescott Valley, AZ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is December (3.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Prescott Valley, AZ

Average daylight in September / Average sunshine in September - Prescott Valley, AZ
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 9h and 5min

The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

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Average sunshine days in September
Prescott Valley, AZ

Average sunshine days in September - Prescott Valley, AZ
  • Average sunshine days in September: 18.5 days

The month with the most sunshine days is May (26.8 days).
The month with the least sunshine days is August (12.8 days).

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Average UV index in September
Prescott Valley, AZ

Average UV index in September - Prescott Valley, AZ
  • Average UV index in September: 5

The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in September
Prescott Valley, AZ

Average cloud cover in September - Prescott Valley, AZ
  • Average cloud cover in September: 10

The month with the most cloud cover is December (Cloud cover 24).
The month with the least cloud cover is June (Cloud cover 7).

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Average visibility in September
Prescott Valley, AZ

Average visibility in September - Prescott Valley, AZ
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Prescott Valley, Arizona, USA

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