September weather forecast
Katherine, AZ

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Weather in September

The first month of the autumn, September, is also a hot month in Katherine, Arizona, with an average temperature ranging between max 92.8°F (33.8°C) and min 75°F (23.9°C).

Temperature

Katherine records a mild change in average high-temperature during September, easing from a torrid 100°F (37.8°C) in August to a hot 92.8°F (33.8°C). An average nighttime temperature of 75°F (23.9°C) is witnessed throughout September.

Humidity

The average relative humidity in September in Katherine is 24%.

Rainfall

In Katherine, in September, during 3.5 rainfall days, 0.28" (7mm) of precipitation is typically accumulated. Throughout the year, there are 44 rainfall days, and 4.21" (107mm) of precipitation is accumulated.

Snowfall

January through November are months without snowfall.

Daylight

The average length of the day in September is 12h and 23min.
On the first day of September in Katherine, sunrise is at 6:11 am and sunset at 7:04 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 6:23 pm MST.

Sunshine

The average sunshine in September in Katherine is 9.9h.

UV index

In September, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 7 in September translates into the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
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Frequently asked questions

How hot does it get in Katherine in September?

September temperatures in Katherine vary between a high-temperature of 92.8°F (33.8°C) and a low-temperature of 75°F (23.9°C).

What is the average humidity in September in Katherine?

In Katherine, the average relative humidity in September is 24%.

How much does it rain in Katherine in September?

In September, in Katherine, Arizona, the rain falls for 3.5 days. Throughout September, 0.28" (7mm) of precipitation is accumulated.

When it does not snow in Katherine?

In Katherine, snow does not fall in January through November.

How many hours of daylight does Katherine have in September?

The average day length in September in Katherine is 12h and 23min.

When are sunrise and sunset in September in Katherine?

In September, on the first day of the month, sunrise is at 6:11 am and sunset at 7:04 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 6:23 pm MST.

How long on average sun shines in September in Katherine?

In September, the average sunshine duration in Katherine is 9.9h.

How high is the UV index in September in Katherine?

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

Average temperature in September
Katherine, AZ

Average temperature in September - Katherine, AZ
  • Average high temperature in September: 92.8°F

The warmest month (with the highest average high temperature) is July (100.8°F).
The month with the lowest average high temperature is December (56.3°F).

  • Average low temperature in September: 75°F

The month with the highest average low temperature is August (81.5°F).
The coldest month (with the lowest average low temperature) is December (43.5°F).

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Average pressure in September
Katherine, AZ

Average pressure in September - Katherine, AZ
  • Average pressure in September: 29.83"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.76"Hg).

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Average wind speed in September
Katherine, AZ

Average wind speed in September - Katherine, AZ
  • Average wind speed in September: 7.6mph

The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is September (7.6mph).

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Average humidity in September
Katherine, AZ

Average humidity in September - Katherine, AZ
  • Average humidity in September: 24%

The month with the highest relative humidity is January (42%).
The month with the lowest relative humidity is June (14%).

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Average rainfall in September
Katherine, AZ

Average rainfall in September - Katherine, AZ
  • Average rainfall in September: 0.28"

The wettest month (with the highest rainfall) is December (0.67").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in September
Katherine, AZ

Average rainfall days in September - Katherine, AZ
  • Average rainfall days in September: 3.5 days

The month with the highest number of rainy days is July (5.9 days).
The month with the least rainy days is June (1.1 days).

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Average snowfall days in September
Katherine, AZ

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

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

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

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

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in September: 9h and 5min

The months with the most sunshine are June and July (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
Katherine, AZ

Average sunshine days in September - Katherine, AZ
  • Average sunshine days in September: 24.6 days

The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is July (20.3 days).

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Average UV index in September
Katherine, AZ

Average UV index in September - Katherine, 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
Katherine, AZ

Average cloud cover in September - Katherine, AZ
  • Average cloud cover in September: 6

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
Katherine, AZ

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

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