September weather forecast
Black Falls Crossing, AZ

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Weather in September

The first month of the autumn, September, is still a warm month in Black Falls Crossing, Arizona, with temperature in the range of an average low of 54°F (12.2°C) and an average high of 75°F (23.9°C).

Temperature

The onset of September brings with it an average high-temperature of a still warm 75°F (23.9°C), showing a negligible variation from the month before. The nights of September anticipate an average low-temperature of 54°F (12.2°C).

Humidity

In September, the average relative humidity is 42%.

Rainfall

In Black Falls Crossing, during September, the rain falls for 7.9 days and regularly aggregates up to 0.71" (18mm) of precipitation. In Black Falls Crossing, Arizona, during the entire year, the rain falls for 60.2 days and collects up to 10" (254mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Black Falls Crossing, the average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 6:57 am and sunset at 7:51 pm. On the last day of September, in Black Falls Crossing, sunrise is at 7:19 am and sunset at 7:09 pm MDT.

Sunshine

In September, the average sunshine is 9.8h.

UV index

The average daily maximum UV index in September in Black Falls Crossing is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Act with care - The suggestion to avoid sunburn is emphasized. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Updated: Aug 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Black Falls Crossing in September?

Black Falls Crossing in September has an average high-temperature of 75°F (23.9°C) and an average low-temperature of 54°F (12.2°C). In July, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 82.4°F (28°C).

What is the average humidity in September?

In September, the average relative humidity in Black Falls Crossing is 42%.

How much does it rain in September?

In September, the rain falls for 7.9 days. Throughout September, 0.71" (18mm) of precipitation is accumulated.

When it does not snow in Black Falls Crossing?

In Black Falls Crossing, snow does not fall in June through September.

Does it snow in September?

In Black Falls Crossing, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September?

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

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:57 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:09 pm MDT.

How long on average sun shines in September?

The average sunshine duration in September is 9.8h.

What is the UV index intensity in September in Black Falls Crossing?

The average daily maximum UV index in September in Black Falls Crossing is 5. A UV Index reading of 3 to 5 represents a moderate 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
Black Falls Crossing, AZ

Average temperature in September - Black Falls Crossing, AZ
  • Average high temperature in September: 75°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in September: 54°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is December (24.3°F).

Average pressure in September
Black Falls Crossing, AZ

Average pressure in September - Black Falls Crossing, AZ
  • Average pressure in September: 29.94"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

Average wind speed in September
Black Falls Crossing, AZ

Average wind speed in September - Black Falls Crossing, AZ
  • Average wind speed in September: 6.6mph

The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in September
Black Falls Crossing, AZ

Average humidity in September - Black Falls Crossing, AZ
  • Average humidity in September: 42%

The month with the highest relative humidity is January (66%).
The month with the lowest relative humidity is June (23%).

Average rainfall in September
Black Falls Crossing, AZ

Average rainfall in September - Black Falls Crossing, AZ
  • Average rainfall in September: 0.71"

The wettest month (with the highest rainfall) is July (2.48").
The driest month (with the least rainfall) is June (0.2").

Average rainfall days in September
Black Falls Crossing, AZ

Average rainfall days in September - Black Falls Crossing, AZ
  • Average rainfall days in September: 7.9 days

The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is November (1.1 days).

Average snowfall in September
Black Falls Crossing, AZ

Average snowfall in September - Black Falls Crossing, AZ
  • Average snowfall in September: 0"

The month with the highest snowfall is December (4.57").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Black Falls Crossing, AZ

Average snowfall days in September - Black Falls Crossing, AZ
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is December (5.5 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in September /
Average sunshine in September
Black Falls Crossing, AZ

Average daylight in September / Average sunshine in September - Black Falls Crossing, 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 August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).

Average sunshine days in September
Black Falls Crossing, AZ

Average sunshine days in September - Black Falls Crossing, AZ
  • Average sunshine days in September: 19.4 days

The month with the most sunshine days is November (26.9 days).
The month with the least sunshine days is July (11 days).

Average UV index in September
Black Falls Crossing, AZ

Average UV index in September - Black Falls Crossing, AZ
  • Average UV index in September: 5

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in September
Black Falls Crossing, AZ

Average cloud cover in September - Black Falls Crossing, 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 7).

Average visibility in September
Black Falls Crossing, AZ

Average visibility in September - Black Falls Crossing, 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).

Black Falls Crossing, Arizona, USA

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