September weather forecast
Three Points, AZ

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Weather in September

September, the first month of the autumn in Three Points, is also a hot month, with an average temperature ranging between max 90°F (32.2°C) and min 71.8°F (22.1°C).

Temperature

Three Points experiences an average high-temperature of a still tropical 90°F (32.2°C) with the onset of September, subtly varied from August's 94.8°F (34.9°C). Throughout September, Three Points witnesses a nighttime temperature average of 71.8°F (22.1°C).

Heat index

September's mean heat index is computed to be a tropical 91.4°F (33°C). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
Realize that the values for the heat index are set for shaded places and light winds. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.

Humidity

In Three Points, the average relative humidity in September is 40%.

Rainfall

In September, the rain falls for 10.5 days. Throughout September, 1.73" (44mm) of precipitation is accumulated. In Three Points, during the entire year, the rain falls for 77.7 days and collects up to 11.57" (294mm) of precipitation.

Snowfall

In Three Points, snow does not fall in February through December.

Daylight

The average length of the day in September is 12h and 21min.
On the first day of the month, sunrise is at 6:01 am and sunset at 6:48 pm. On the last day of September, sunrise is at 6:19 am and sunset at 6:10 pm MST.

Sunshine

In Three Points, Arizona, the average sunshine in September is 9.6h.

UV index

In September, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index of 7 during September leads to these instructions:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in September?

The high-temperature during September is 90°F (32.2°C) and the low-temperature is 71.8°F (22.1°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, in September is computed to be 91.4°F (33°C).

What is the average humidity in September?

In September, the average relative humidity is 40%.

How much does it rain in September?

In September, in Three Points, Arizona, the rain falls for 10.5 days. Throughout September, 1.73" (44mm) of precipitation is accumulated.

When it does not snow?

In Three Points, snow does not fall in February through December.

What is the average length of the day in September?

The average day length in September is 12h and 21min.

When is the sunrise / sunset in September?

On the first day of September in Three Points, sunrise is at 6:01 am and sunset at 6:48 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 6:10 pm MST.

How long on average sun shines in September?

The average sunshine duration in September in Three Points is 9.6h.

What is the UV index intensity in September in Three Points?

The average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to the Sun's UV radiation.
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
Three Points, AZ

Average temperature in September - Three Points, AZ
  • Average high temperature in September: 90°F

The warmest month (with the highest average high temperature) is June (97.2°F).
The month with the lowest average high temperature is December (61.7°F).

  • Average low temperature in September: 71.8°F

The month with the highest average low temperature is July (77.5°F).
The coldest months (with the lowest average low temperature) are January and December (44.2°F).

Average pressure in September
Three Points, AZ

Average pressure in September - Three Points, AZ
  • Average pressure in September: 29.86"Hg

The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.81"Hg).

Average wind speed in September
Three Points, AZ

Average wind speed in September - Three Points, AZ
  • Average wind speed in September: 6.3mph

The windiest month (with the highest average wind speed) is May (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in September
Three Points, AZ

Average humidity in September - Three Points, AZ
  • Average humidity in September: 40%

The month with the highest relative humidity is December (45%).
The month with the lowest relative humidity is June (20%).

Average rainfall in September
Three Points, AZ

Average rainfall in September - Three Points, AZ
  • Average rainfall in September: 1.73"

The wettest month (with the highest rainfall) is August (2.64").
The driest months (with the least rainfall) are April and May (0.2").

Average rainfall days in September
Three Points, AZ

Average rainfall days in September - Three Points, AZ
  • Average rainfall days in September: 10.5 days

The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is May (2.3 days).

Average snowfall in September
Three Points, AZ

Average snowfall in September - Three Points, AZ
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in September
Three Points, AZ

Average snowfall days in September - Three Points, AZ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in September /
Average sunshine in September
Three Points, AZ

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

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).

Average sunshine days in September
Three Points, AZ

Average sunshine days in September - Three Points, AZ
  • Average sunshine days in September: 17.4 days

The month with the most sunshine days is May (28.6 days).
The month with the least sunshine days is July (10.9 days).

Average UV index in September
Three Points, AZ

Average UV index in September - Three Points, AZ
  • Average UV index in September: 7

The month with the highest UV index is June (UV index 8).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in September
Three Points, AZ

Average cloud cover in September - Three Points, AZ
  • Average cloud cover in September: 13

The months with the most cloud cover are July and December (Cloud cover 20).
The month with the least cloud cover is June (Cloud cover 7).

Average visibility in September
Three Points, AZ

Average visibility in September - Three Points, 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).

Three Points, Arizona, USA

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