September weather forecastDouglas, AZ
September
Weather in September
September gifts Douglas with the first indication of autumn’s approaching coolness. The weather gradually evolves, bridging the gap between the intense heat of previous months and the forthcoming coolness. However, September continues to retain much of summer's warmth. The recorded average high temperature drops to a more bearable 85.1°F (29.5°C). The vibrant fall colors start to emerge, beautifully offsetting the still-dominant summer hues.Temperature
Douglas's average high-temperature in September sits at a warm 85.1°F (29.5°C), showing little difference from the previous month. During the nights in September, Douglas experiences a consistent average temperature of 65.5°F (18.6°C).Heat index
The average heat index in September is computed to be a tropical 86°F (30°C). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'feels like' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
Humidity
In Douglas, the average relative humidity in September is 46%.Rainfall
In Douglas, in September, during 10.5 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. Throughout the year, there are 80.7 rainfall days, and 9.33" (237mm) of precipitation is accumulated.Snowfall
March through November are months without snowfall.Daylight
The average length of the day in September is 12h and 20min.On the first day of September, sunrise is at 5:54 am and sunset at 6:41 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 6:04 pm MST.
Sunshine
In Douglas, the average sunshine in September is 10.3h.UV index
The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 6 suggests this advice:
Ward off overexposure. Defence against solar harm is crucial. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Douglas, AZ
- Average high temperature in September: 85.1°F
The warmest month (with the highest average high temperature) is June (93.2°F).
The month with the lowest average high temperature is December (57.9°F).
- Average low temperature in September: 65.5°F
The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).
Average pressure in September
Douglas, AZ
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Douglas, AZ
- Average wind speed in September: 6.1mph
The windiest month (with the highest average wind speed) is May (9.5mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Douglas, AZ
- Average humidity in September: 46%
The month with the highest relative humidity is December (49%).
The month with the lowest relative humidity is May (22%).
Average rainfall in September
Douglas, AZ
- Average rainfall in September: 1.1"
The wettest month (with the highest rainfall) is July (2.44").
The driest months (with the least rainfall) are April and May (0.08").
Average rainfall days in September
Douglas, AZ
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is May (1.8 days).
Average snowfall in September
Douglas, AZ
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.47").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Douglas, AZ
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are February and December (0.3 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
Douglas, AZ
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 10h and 18min
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 6min).
Average sunshine days in September
Douglas, AZ
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is May (28.9 days).
The month with the least sunshine days is July (7.2 days).
Average UV index in September
Douglas, AZ
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in September
Douglas, AZ
- Average cloud cover in September: 15
The month with the most cloud cover is July (Cloud cover 21).
The month with the least cloud cover is May (Cloud cover 6).
Average visibility in September
Douglas, 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).
