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
The transition into September subtly indicates a reduction in the average high-temperature, down to a moderately hot 83.3°F (28.5°C) from August's tropical 89.2°F (31.8°C). Clifton anticipates an average minimum temperature of 63°F (17.2°C) in the month of September.Heat index
The heat index value during September is estimated at 82.4°F (28°C). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.Know that the heat index computations account for shaded terrains and slight winds. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Humidity
The average relative humidity in September in Clifton is 43%.Rainfall
In Clifton, in September, it is raining for 12.1 days, with typically 1.61" (41mm) of accumulated precipitation. In Clifton, during the entire year, the rain falls for 92.3 days and collects up to 12.13" (308mm) of precipitation.Snowfall
April through November are months without snowfall in Clifton, Arizona.Daylight
The average length of the day in September in Clifton is 12h and 22min.On the first day of September in Clifton, sunrise is at 5:52 am and sunset at 6:41 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 6:02 pm MST.
Sunshine
In September, the average sunshine in Clifton, Arizona, is 10.5h.UV index
In Clifton, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 6 transforms into these recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Clifton in September?
What is the average humidity in September in Clifton?
How many days does it rain in September in Clifton?
When it does not snow in Clifton?
What is the average length of the day in September in Clifton?
When is the sunrise / sunset in September in Clifton?
How long on average sun shines in September in Clifton?
What is the UV index intensity in September in Clifton?
Average temperature in September
Clifton, AZ
- Average high temperature in September: 83.3°F
The warmest month (with the highest average high temperature) is June (91°F).
The month with the lowest average high temperature is December (52.7°F).
- Average low temperature in September: 63°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).
Average pressure in September
Clifton, AZ
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Clifton, AZ
- Average wind speed in September: 5.9mph
The windiest months (with the highest average wind speed) are April and May (8.3mph).
The calmest month (with the lowest average wind speed) is December (5.1mph).
Average humidity in September
Clifton, AZ
- Average humidity in September: 43%
The month with the highest relative humidity is December (53%).
The month with the lowest relative humidity is June (22%).
Average rainfall in September
Clifton, AZ
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is July (2.44").
The driest month (with the least rainfall) is April (0.2").
Average rainfall days in September
Clifton, AZ
- Average rainfall days in September: 12.1 days
The months with the highest number of rainy days are July and August (16.8 days).
The month with the least rainy days is May (3.5 days).
Average snowfall in September
Clifton, AZ
- Average snowfall in September: 0"
The month with the highest snowfall is December (0.87").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Clifton, AZ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Clifton, 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 3min
The months with the most sunshine are June and August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in September
Clifton, AZ
- Average sunshine days in September: 14 days
The month with the most sunshine days is May (26.4 days).
The month with the least sunshine days is August (8.3 days).
Average UV index in September
Clifton, AZ
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Clifton, AZ
- Average cloud cover in September: 15
The month with the most cloud cover is December (Cloud cover 22).
The months with the least cloud cover are May and June (Cloud cover 9).
Average visibility in September
Clifton, 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).
Clifton, Arizona, USA
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