Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September brings a minor shift in the average high-temperature, adjusting from a sweltering 98.1°F (36.7°C) in August to a hot 92.3°F (33.5°C). Carefree's average low-temperature is measured at a moderately hot 74.3°F (23.5°C) during September.Humidity
In Carefree, Arizona, the average relative humidity in September is 32%.Rainfall
In Carefree, in September, it is raining for 7.9 days, with typically 1.1" (28mm) of accumulated precipitation. Throughout the year, there are 65.9 rainfall days, and 9.96" (253mm) of precipitation is accumulated.Snowfall
The only month with snowfall is September. The month with the most snowfall is September, when snow falls for 0.1 days and typically aggregates up to 0.04" (1mm) of snow.Daylight
In Carefree, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:02 am and sunset at 6:52 pm. On the last day of September, in Carefree, Arizona, sunrise is at 6:21 am and sunset at 6:12 pm MST.
Sunshine
In Carefree, the average sunshine in September is 9.6h.UV index
The average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.Note: In September, the average maximum UV index of 7 translates into the following recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Experience reduced UV exposure by about half when donning a wide-brim hat. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
How many days does it rain in September?
What is the snowiest month?
When does it start to snow in Carefree?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Carefree, AZ
- Average high temperature in September: 92.3°F
The warmest month (with the highest average high temperature) is July (99.1°F).
The month with the lowest average high temperature is December (59.9°F).
- Average low temperature in September: 74.3°F
The month with the highest average low temperature is August (80.2°F).
The coldest months (with the lowest average low temperature) are January and December (44.1°F).
Average pressure in September
Carefree, AZ
- Average pressure in September: 29.88"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).
Average wind speed in September
Carefree, AZ
- Average wind speed in September: 5.5mph
The windiest months (with the highest average wind speed) are April and May (6.7mph).
The calmest month (with the lowest average wind speed) is December (5mph).
Average humidity in September
Carefree, AZ
- Average humidity in September: 32%
The month with the highest relative humidity is December (45%).
The month with the lowest relative humidity is June (17%).
Average rainfall in September
Carefree, AZ
- Average rainfall in September: 1.1"
The wettest month (with the highest rainfall) is July (1.69").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in September
Carefree, AZ
- Average rainfall days in September: 7.9 days
The month with the highest number of rainy days is July (12.3 days).
The month with the least rainy days is June (1.9 days).
Average snowfall in September
Carefree, AZ
- Average snowfall in September: 0.04"
The month with the highest snowfall is September (0.04").
The months with the least snowfall are January, February, March, April, May, June, July, August, October, November and December (0").
Average snowfall days in September
Carefree, AZ
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Carefree, AZ
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in September
Carefree, AZ
- Average sunshine days in September: 19.4 days
The month with the most sunshine days is May (28 days).
The month with the least sunshine days is July (14.8 days).
Average UV index in September
Carefree, AZ
- Average UV index in September: 7
The months with the highest UV index are June, July and August (UV index 8).
The months with the lowest UV index are November and December (UV index 3).
Average cloud cover in September
Carefree, AZ
- Average cloud cover in September: 11
The month with the most cloud cover is December (Cloud cover 22).
The month with the least cloud cover is June (Cloud cover 6).
Average visibility in September
Carefree, 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).
Carefree, Arizona, USA
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