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
In Signal, the average high-temperature in September slightly decreases from 91.9°F (33.3°C) in August to a still hot 86.2°F (30.1°C). Throughout the September nights, Signal encounters a low-temperature of 68.4°F (20.2°C).Humidity
The average relative humidity in September is 32%.Rainfall
In Signal, during September, the rain falls for 7 days and regularly aggregates up to 0.75" (19mm) of precipitation. Throughout the year, there are 61.4 rainfall days, and 8.35" (212mm) of precipitation is accumulated.Snowfall
In Signal, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 22min.On the first day of September, sunrise is at 6:08 am and sunset at 7:00 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 6:19 pm MST.
Sunshine
In September, the average sunshine is 9.8h.UV index
The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September in Signal?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September in Signal?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Signal, AZ
- Average high temperature in September: 86.2°F
The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is December (54.5°F).
- Average low temperature in September: 68.4°F
The month with the highest average low temperature is August (74.1°F).
The coldest month (with the lowest average low temperature) is December (38.5°F).
Average pressure in September
Signal, AZ
- Average pressure in September: 29.86"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.79"Hg).
Average wind speed in September
Signal, AZ
- Average wind speed in September: 6.6mph
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 (6.1mph).
Average humidity in September
Signal, AZ
- Average humidity in September: 32%
The month with the highest relative humidity is December (48%).
The month with the lowest relative humidity is June (19%).
Average rainfall in September
Signal, AZ
- Average rainfall in September: 0.75"
The wettest month (with the highest rainfall) is August (1.1").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in September
Signal, AZ
- Average rainfall days in September: 7 days
The month with the highest number of rainy days is July (10.4 days).
The month with the least rainy days is June (1.2 days).
Average snowfall in September
Signal, AZ
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.73").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Signal, AZ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Signal, 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 5min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in September
Signal, AZ
- Average sunshine days in September: 20.3 days
The months with the most sunshine days are May and June (28.1 days).
The month with the least sunshine days is August (15.4 days).
Average UV index in September
Signal, AZ
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Signal, AZ
- Average cloud cover in September: 9
The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in September
Signal, 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).
Signal, Arizona, USA
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