September weather forecast
Fort Thomas, AZ

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Weather in September

The first month of the autumn, September, is still a hot month in Fort Thomas, Arizona, with an average temperature varying between 66.9°F (19.4°C) and 86.7°F (30.4°C).

Temperature

Fort Thomas records a mild change in average high-temperature during September, easing from 92.1°F (33.4°C) in August to a still tropical 86.7°F (30.4°C). Throughout September, Fort Thomas witnesses a nighttime temperature average of 66.9°F (19.4°C).

Heat index

The heat index value during September is computed to be a hot 86°F (30°C). If one continues to be active during enduring exposure, it could result in fatigue and heat cramps.
Note that heat index values are valued for light wind and location in the shade. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', takes into account both air temperature and humidity to illustrate what people actually feel. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.

Humidity

In Fort Thomas, Arizona, the average relative humidity in September is 41%.

Rainfall

In Fort Thomas, during September, the rain falls for 9 days and regularly aggregates up to 0.79" (20mm) of precipitation. Throughout the year, there are 78.6 rainfall days, and 8.39" (213mm) of precipitation is accumulated.

Snowfall

March through November are months without snowfall in Fort Thomas.

Daylight

In September, the average length of the day in Fort Thomas is 12h and 22min.
On the first day of September in Fort Thomas, sunrise is at 5:54 am and sunset at 6:44 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 6:05 pm MST.

Sunshine

The average sunshine in September in Fort Thomas, Arizona, is 10.4h.

UV index

In Fort Thomas, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: An average UV index of 6 in September transforms into this advice:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Opt for tightly woven and loose clothing to enhance protection from the Sun.

Frequently asked questions

Is it hot in Fort Thomas during September?

The average high-temperature, in September, in Fort Thomas, is 86.7°F (30.4°C), while the average low-temperature is 66.9°F (19.4°C). In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, is computed to be 86°F (30°C).

What is the average humidity in September in Fort Thomas?

The average relative humidity in September is 41%.

How much does it rain in Fort Thomas in September?

In September, in Fort Thomas, the rain falls for 9 days. Throughout September, 0.79" (20mm) of precipitation is accumulated.

When it does not snow in Fort Thomas?

March through November are months without snowfall.

What is the average length of the day in September in Fort Thomas?

The average day length in September is 12h and 22min.

When is the sunrise / sunset in September in Fort Thomas?

On the first day of September, sunrise is at 5:54 am and sunset at 6:44 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 6:05 pm MST.

How many hours of sunshine does Fort Thomas have in September?

In September, the average sunshine duration in Fort Thomas is 10.4h.

How high is the UV index in September in Fort Thomas?

The average daily maximum UV index in September in Fort Thomas, Arizona, is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability 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
Fort Thomas, AZ

Average temperature in September - Fort Thomas, AZ
  • Average high temperature in September: 86.7°F

The warmest month (with the highest average high temperature) is June (94.3°F).
The month with the lowest average high temperature is December (55.9°F).

  • Average low temperature in September: 66.9°F

The month with the highest average low temperature is July (73.9°F).
The coldest month (with the lowest average low temperature) is January (37.4°F).

Average pressure in September
Fort Thomas, AZ

Average pressure in September - Fort Thomas, AZ
  • Average pressure in September: 29.94"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in September
Fort Thomas, AZ

Average wind speed in September - Fort Thomas, AZ
  • Average wind speed in September: 5.6mph

The windiest months (with the highest average wind speed) are April and May (7.3mph).
The calmest months (with the lowest average wind speed) are January and December (5.4mph).

Average humidity in September
Fort Thomas, AZ

Average humidity in September - Fort Thomas, AZ
  • Average humidity in September: 41%

The month with the highest relative humidity is December (51%).
The month with the lowest relative humidity is June (20%).

Average rainfall in September
Fort Thomas, AZ

Average rainfall in September - Fort Thomas, AZ
  • Average rainfall in September: 0.79"

The wettest month (with the highest rainfall) is July (1.22").
The driest month (with the least rainfall) is May (0.12").

Average rainfall days in September
Fort Thomas, AZ

Average rainfall days in September - Fort Thomas, AZ
  • Average rainfall days in September: 9 days

The month with the highest number of rainy days is July (14.5 days).
The month with the least rainy days is May (2.7 days).

Average snowfall in September
Fort Thomas, AZ

Average snowfall in September - Fort Thomas, AZ
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.31").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Fort Thomas, AZ

Average snowfall days in September - Fort Thomas, AZ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

Average daylight in September /
Average sunshine in September
Fort Thomas, AZ

Average daylight in September / Average sunshine in September - Fort Thomas, 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: 10h and 2min

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

Average sunshine days in September
Fort Thomas, AZ

Average sunshine days in September - Fort Thomas, AZ
  • Average sunshine days in September: 16.7 days

The month with the most sunshine days is May (27.3 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in September
Fort Thomas, AZ

Average UV index in September - Fort Thomas, AZ
  • Average UV index in September: 6

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

Average cloud cover in September
Fort Thomas, AZ

Average cloud cover in September - Fort Thomas, AZ
  • Average cloud cover in September: 13

The month with the most cloud cover is December (Cloud cover 20).
The months with the least cloud cover are May and June (Cloud cover 8).

Average visibility in September
Fort Thomas, AZ

Average visibility in September - Fort Thomas, 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).

Fort Thomas, Arizona, USA

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