September weather forecast
Gillespie, AZ

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Weather in September

The first month of the autumn, September, is also a sweltering month in Gillespie, Arizona, with an average temperature varying between 79.5°F (26.4°C) and 96.6°F (35.9°C).

Temperature

The transition into September reveals an average high-temperature of a still fiery hot 96.6°F (35.9°C), mirroring a close resemblance to August. During September, Gillespie records a consistent average nighttime temperature of 79.5°F (26.4°C).

Humidity

In Gillespie, the average relative humidity in September is 30%.

Rainfall

In September, the rain falls for 7.8 days. Throughout September, 0.75" (19mm) of precipitation is accumulated. Throughout the year, in Gillespie, there are 57.6 rainfall days, and 6.61" (168mm) of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 22min.
On the first day of September in Gillespie, sunrise is at 6:06 am and sunset at 6:56 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 6:17 pm MST.

Sunshine

In September, the average sunshine in Gillespie is 9.7h.

UV index

In Gillespie, the average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily high UV index of 7 in September leads to these guidelines:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
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Frequently asked questions

How hot is it in Gillespie in September?

The average high-temperature, in September, in Gillespie, is 96.6°F (35.9°C), while the average low-temperature is 79.5°F (26.4°C).

What is the average humidity in September in Gillespie?

In Gillespie, Arizona, the average relative humidity in September is 30%.

How much does it rain in Gillespie in September?

In September, the rain falls for 7.8 days. Throughout September, 0.75" (19mm) of precipitation is accumulated.

How many hours of daylight does Gillespie have in September?

In Gillespie, Arizona, the average day length in September is 12h and 22min.

When is the sunrise / sunset in September in Gillespie?

In September, on the first day of the month, sunrise is at 6:06 am and sunset at 6:56 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 6:17 pm MST.

How many hours of sunshine does Gillespie have in September?

The average sunshine duration in September is 9.7h.

What is the UV index intensity in September in Gillespie?

In September, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Gillespie, AZ

Average temperature in September - Gillespie, AZ
  • Average high temperature in September: 96.6°F

The warmest month (with the highest average high temperature) is July (102.4°F).
The month with the lowest average high temperature is December (63.1°F).

  • Average low temperature in September: 79.5°F

The month with the highest average low temperature is August (85.3°F).
The coldest month (with the lowest average low temperature) is December (47.7°F).

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Average pressure in September
Gillespie, AZ

Average pressure in September - Gillespie, AZ
  • Average pressure in September: 29.81"Hg

The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.76"Hg).

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Average wind speed in September
Gillespie, AZ

Average wind speed in September - Gillespie, AZ
  • Average wind speed in September: 6.6mph

The windiest months (with the highest average wind speed) are May and June (8.3mph).
The calmest months (with the lowest average wind speed) are January and December (5.3mph).

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Average humidity in September
Gillespie, AZ

Average humidity in September - Gillespie, AZ
  • Average humidity in September: 30%

The month with the highest relative humidity is December (42%).
The month with the lowest relative humidity is June (17%).

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Average rainfall in September
Gillespie, AZ

Average rainfall in September - Gillespie, AZ
  • Average rainfall in September: 0.75"

The wettest month (with the highest rainfall) is July (1.5").
The driest months (with the least rainfall) are April, May and June (0.08").

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Average rainfall days in September
Gillespie, AZ

Average rainfall days in September - Gillespie, AZ
  • Average rainfall days in September: 7.8 days

The month with the highest number of rainy days is July (12.9 days).
The month with the least rainy days is May (1.3 days).

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Average daylight in September /
Average sunshine in September
Gillespie, AZ

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

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).

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Average sunshine days in September
Gillespie, AZ

Average sunshine days in September - Gillespie, AZ
  • Average sunshine days in September: 19.8 days

The month with the most sunshine days is May (29.2 days).
The month with the least sunshine days is July (13.4 days).

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Average UV index in September
Gillespie, AZ

Average UV index in September - Gillespie, AZ
  • Average UV index in September: 7

The months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in September
Gillespie, AZ

Average cloud cover in September - Gillespie, AZ
  • Average cloud cover in September: 10

The month with the most cloud cover is December (Cloud cover 19).
The month with the least cloud cover is June (Cloud cover 5).

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Average visibility in September
Gillespie, AZ

Average visibility in September - Gillespie, 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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Gillespie, Arizona, USA

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