September weather forecast and climate
Rimrock, AZ

Weather in September

September, the first month of the autumn, in Rimrock, is also a moderately hot month, with temperature in the range of an average high of 81.5°F (27.5°C) and an average low of 59.7°F (15.4°C).

Temperature

In September, the average high-temperature marginally drops, from a tropical 87.4°F (30.8°C) in August, to a warm 81.5°F (27.5°C). In Rimrock, Arizona, in September, the average low-temperature is 59.7°F (15.4°C).

Heat index

The average heat index in September is estimated at 81°F (27.2°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'real feel', or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (wind, metabolic differences, differences in body mass, height, and shape). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

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

Rainfall

In September, in Rimrock, the rain falls for 9.5 days. Throughout September, 0.94" (24mm) of precipitation is accumulated. In Rimrock, during the entire year, the rain falls for 82.6 days and collects up to 11.69" (297mm) of precipitation.

Snowfall

May through October are months without snowfall in Rimrock.

Daylight

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

Sunshine

The average sunshine in September is 9.7h.

UV index

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from the exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Rimrock?

In Rimrock, Arizona, in September, the average high-temperature is 81.5°F (27.5°C), and the average low-temperature is 59.7°F (15.4°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), that factores the actual air temperature with the relative humidity, in September is evaluated at 81°F (27.2°C).

What is the average humidity in September in Rimrock?

In September, the average relative humidity in Rimrock, Arizona, is 40%.

How many days does it rain in September in Rimrock?

In September, the rain falls for 9.5 days. Throughout September, 0.94" (24mm) of precipitation is accumulated.

When it does not snow in Rimrock?

May through October are months without snowfall.

How many hours of daylight does Rimrock have in September?

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

How long on average sun shines in September in Rimrock?

In Rimrock, Arizona, the average sunshine in September is 9.7h.

What is the UV index intensity in September in Rimrock?

In Rimrock, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unsafe exposure to the Sun's UV rays.

Average temperature in September
Rimrock, AZ

Average temperature in September - Rimrock, AZ
  • Average high temperature in September: 81.5°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is December (50.9°F).

  • Average low temperature in September: 59.7°F

The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is December (32.2°F).

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Average pressure in September
Rimrock, AZ

Average pressure in September - Rimrock, AZ
  • Average pressure in September: 29.92"

The month with the highest atmospheric pressure is January (30.12").
The month with the lowest atmospheric pressure is June (29.85").

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Average wind speed in September
Rimrock, AZ

Average wind speed in September - Rimrock, AZ
  • Average wind speed in September: 5.2mph

The windiest months (with the highest average wind speed) are April and May (7mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

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Average humidity in September
Rimrock, AZ

Average humidity in September - Rimrock, AZ
  • Average humidity in September: 40%

The month with the highest relative humidity is December (57%).
The month with the lowest relative humidity is June (23%).

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Average rainfall in September
Rimrock, AZ

Average rainfall in September - Rimrock, AZ
  • Average rainfall in September: 0.94"

The wettest month (with the highest rainfall) is July (1.85").
The driest month (with the least rainfall) is June (0.16").

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Average rainfall days in September
Rimrock, AZ

Average rainfall days in September - Rimrock, AZ
  • Average rainfall days in September: 9.5 days

The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is June (2.3 days).

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Average snowfall in September
Rimrock, AZ

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

The month with the highest snowfall is February (2.05").
Months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Rimrock, AZ

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

The month with the highest number of snowfall days is February (1.3 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Rimrock, 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: 9.9h).

  • Average sunshine in September: 9.7h

Months with the most sunshine are June and August (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6.8h).

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Average sunshine days in September
Rimrock, AZ

Average sunshine days in September - Rimrock, AZ
  • Average sunshine days in September: 16.6 days

The month with the most sunshine days is May (26.2 days).
The month with the least sunshine days is July (10.4 days).

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Average UV index in September
Rimrock, AZ

Average UV index in September - Rimrock, AZ
  • Average UV index in September: 5

The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in September
Rimrock, AZ

Average cloud cover in September - Rimrock, 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 6).

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Average visibility in September
Rimrock, AZ

Average visibility in September - Rimrock, 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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