September weather forecast and climate
Holbrook, AZ

The small town of Holbrook in Arizona
The small town of Holbrook in Arizona

Weather in September

The first month of the autumn, September, is also a moderately hot month in Holbrook, Arizona, with average temperature ranging between min 62.6°F (17°C) and max 82.4°F (28°C).

Temperature

In Holbrook, the average high-temperature in September marginally drops, from a tropical 88.3°F (31.3°C) in August, to a moderately hot 82.4°F (28°C). In Holbrook, the average low-temperature is 62.6°F (17°C).

Humidity

The average relative humidity in September is 35%.

Rainfall

In Holbrook, during September, the rain falls for 7.8 days and regularly aggregates up to 0.79" (20mm) of precipitation. In Holbrook, Arizona, during the entire year, the rain falls for 74.3 days and collects up to 7.2" (183mm) of precipitation.

Snowfall

May through October are months without snowfall in Holbrook.

Daylight

In September, the average length of the day is 12.4h.

Sunshine

In Holbrook, the average sunshine is 10.4h.

UV index

In Holbrook, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to the UV radiation for the ordinary person.
Note: The daily maximum UV index of 6 interpret into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in September in Holbrook?

In Holbrook, Arizona, in September, the average high-temperature is 82.4°F (28°C), and the average low-temperature is 62.6°F (17°C).

What is the average humidity in September in Holbrook?

In September, the average relative humidity in Holbrook is 35%.

How many days does it rain in September in Holbrook?

In Holbrook, Arizona, during September, the rain falls for 7.8 days and regularly aggregates up to 0.79" (20mm) of precipitation.

When it does not snow in Holbrook?

May through October are months without snowfall in Holbrook.

What is the average length of the day in September in Holbrook?

The average length of the day in September is 12.4h.

How many hours of sunshine does Holbrook have in September?

In September, the average sunshine in Holbrook is 10.4h.

How high is the UV index in September in Holbrook?

In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health threat from the exposure to the Sun's UV rays.

Average temperature in September
Holbrook, AZ

Average temperature in September - Holbrook, AZ
  • Average high temperature in September: 82.4°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (46.8°F).

  • Average low temperature in September: 62.6°F

The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

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Average pressure in September
Holbrook, AZ

Average pressure in September - Holbrook, AZ
  • Average pressure in September: 29.96"

The month with the highest atmospheric pressure is January (30.16").
Months with the lowest atmospheric pressure are May and June (29.88").

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Average wind speed in September
Holbrook, AZ

Average wind speed in September - Holbrook, AZ
  • Average wind speed in September: 7.7mph

The windiest months (with the highest average wind speed) are April and May (10.6mph).
The calmest month (with the lowest average wind speed) is January (6.1mph).

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Average humidity in September
Holbrook, AZ

Average humidity in September - Holbrook, AZ
  • Average humidity in September: 35%

The month with the highest relative humidity is January (59%).
The month with the lowest relative humidity is June (18%).

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Average rainfall in September
Holbrook, AZ

Average rainfall in September - Holbrook, AZ
  • Average rainfall in September: 0.79"

The wettest month (with the highest rainfall) is July (1.1").
The driest month (with the least rainfall) is June (0.16").

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Average rainfall days in September
Holbrook, AZ

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

The month with the highest number of rainy days is July (13.3 days).
Months with the least rainy days are June and November (3.4 days).

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Average snowfall in September
Holbrook, AZ

Average snowfall in September - Holbrook, AZ
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.17").
Months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Holbrook, AZ

Average snowfall days in September - Holbrook, AZ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is December (3.1 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Holbrook, AZ
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.5h).
The month with the shortest days is December (Average daylight: 9.8h).

  • Average sunshine in September: 10.4h

The month with the most sunshine is August (Average sunshine: 12.2h).
The month with the least sunshine is December (Average sunshine: 6.8h).

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Average sunshine days in September
Holbrook, AZ

Average sunshine days in September - Holbrook, AZ
  • Average sunshine days in September: 19.4 days

Months with the most sunshine days are May, June and November (25.3 days).
The month with the least sunshine days is July (12.8 days).

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Average UV index in September
Holbrook, AZ

Average UV index in September - Holbrook, AZ
  • Average UV index in September: 6

Months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in September
Holbrook, AZ

Average cloud cover in September - Holbrook, AZ
  • Average cloud cover in September: 11

The month with the most cloud cover is December (Cloud cover 23).
The month with the least cloud cover is June (Cloud cover 9).

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Average visibility in September
Holbrook, AZ

Average visibility in September - Holbrook, AZ
  • Average visibility in September: 6mi

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

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