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 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
A subtle change in temperatures is noted as August gives way to September, with average highs reducing from 103.6°F (39.8°C) to a still fiery hot 98.2°F (36.8°C). Horn reports an average low-temperature of 81°F (27.2°C) during the nights of September.Humidity
In Horn, the average relative humidity in September is 31%.Rainfall
In Horn, during September, the rain falls for 6 days and regularly aggregates up to 0.51" (13mm) of precipitation. Throughout the year, in Horn, there are 39.5 rainfall days, and 4.06" (103mm) of precipitation is accumulated.Daylight
In Horn, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:09 am and sunset at 6:58 pm. On the last day of September, sunrise is at 6:28 am and sunset at 6:19 pm MST.
Sunshine
In September, the average sunshine in Horn is 9.7h.UV index
The average daily maximum UV index in September in Horn is 7. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: A daily maximum UV index of 7 in September translates into the following instructions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Frequently asked questions
How hot is it in Horn in September?
What is the average humidity in September in Horn?
How many days does it rain in September in Horn?
What is the average length of the day in September in Horn?
When is the sunrise / sunset in September in Horn?
How long on average sun shines in September in Horn?
What is the UV index intensity in September in Horn?
Average temperature in September
Horn, AZ
- Average high temperature in September: 98.2°F
The warmest month (with the highest average high temperature) is July (103.8°F).
The month with the lowest average high temperature is December (64.8°F).
- Average low temperature in September: 81°F
The month with the highest average low temperature is August (86.2°F).
The coldest months (with the lowest average low temperature) are January and December (49.6°F).
Average pressure in September
Horn, AZ
- Average pressure in September: 29.78"Hg
The month with the highest atmospheric pressure is January (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.73"Hg).
Average wind speed in September
Horn, AZ
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is July (8.6mph).
The calmest month (with the lowest average wind speed) is December (5.6mph).
Average humidity in September
Horn, AZ
- Average humidity in September: 31%
The month with the highest relative humidity is December (40%).
The month with the lowest relative humidity is June (21%).
Average rainfall in September
Horn, AZ
- Average rainfall in September: 0.51"
The wettest month (with the highest rainfall) is July (0.75").
The driest month (with the least rainfall) is May (0.04").
Average rainfall days in September
Horn, AZ
- Average rainfall days in September: 6 days
The month with the highest number of rainy days is July (8.2 days).
The month with the least rainy days is May (1 days).
Average daylight in September /
Average sunshine in September
Horn, 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: 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: 7h and 6min).
Average sunshine days in September
Horn, AZ
- Average sunshine days in September: 22.3 days
The month with the most sunshine days is May (29.7 days).
The month with the least sunshine days is July (19.3 days).
Average UV index in September
Horn, 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 4).
Average cloud cover in September
Horn, AZ
- Average cloud cover in September: 9
The month with the most cloud cover is December (Cloud cover 18).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in September
Horn, 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).
Horn, Arizona, USA
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