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 shift from August to September coincides with a small decrease in the average high-temperature, down to a warm 85.8°F (29.9°C) from a tropical 91.2°F (32.9°C). Coolidge Dam's September nights cool down to an average low-temperature of 66°F (18.9°C).Heat index
September's heat index is computed to be a hot 86°F (30°C). If exposure and ongoing activity persist, they might induce a state of tiredness and heat cramps.Take into consideration that the heat index values are calculated for shade and light wind conditions. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
In Coolidge Dam, Arizona, the average relative humidity in September is 40%.Rainfall
In September, in Coolidge Dam, the rain falls for 8.7 days. Throughout September, 0.87" (22mm) of precipitation is accumulated. In Coolidge Dam, during the entire year, the rain falls for 75.1 days and collects up to 8.82" (224mm) of precipitation.Snowfall
In Coolidge Dam, snow does not fall in April through November.Daylight
In Coolidge Dam, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 5:56 am and sunset at 6:46 pm. On the last day of September, in Coolidge Dam, Arizona, sunrise is at 6:16 am and sunset at 6:07 pm MST.
Sunshine
The average sunshine in September is 10h.UV index
In Coolidge Dam, Arizona, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 6 suggests these recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Frequently asked questions
How hot is it in Coolidge Dam in September?
What is the average humidity in September in Coolidge Dam?
How much does it rain in Coolidge Dam in September?
When it does not snow in Coolidge Dam?
How many hours of daylight does Coolidge Dam have in September?
When is the sunrise / sunset in September in Coolidge Dam?
How long on average sun shines in September in Coolidge Dam?
How high is the UV index in September in Coolidge Dam?
Average temperature in September
Coolidge Dam, AZ
- Average high temperature in September: 85.8°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 (55.2°F).
- Average low temperature in September: 66°F
The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is December (36.9°F).
Average pressure in September
Coolidge Dam, AZ
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Coolidge Dam, AZ
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is May (7.2mph).
The calmest months (with the lowest average wind speed) are August and December (5.2mph).
Average humidity in September
Coolidge Dam, AZ
- Average humidity in September: 40%
The month with the highest relative humidity is December (53%).
The month with the lowest relative humidity is June (21%).
Average rainfall in September
Coolidge Dam, AZ
- Average rainfall in September: 0.87"
The wettest month (with the highest rainfall) is August (1.22").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in September
Coolidge Dam, AZ
- Average rainfall days in September: 8.7 days
The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is June (2.9 days).
Average snowfall in September
Coolidge Dam, AZ
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.08").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Coolidge Dam, AZ
- Average snowfall days in September: 0.1 days
The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are April, May, June, July, August, October and November (0 days).
Average daylight in September /
Average sunshine in September
Coolidge Dam, 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 0min
The month with the most sunshine is August (Average sunshine: 12h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in September
Coolidge Dam, AZ
- Average sunshine days in September: 18.2 days
The month with the most sunshine days is May (26.8 days).
The month with the least sunshine days is July (13.1 days).
Average UV index in September
Coolidge Dam, 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
Coolidge Dam, AZ
- Average cloud cover in September: 13
The month with the most cloud cover is December (Cloud cover 23).
The month with the least cloud cover is June (Cloud cover 7).
Average visibility in September
Coolidge Dam, 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).
Coolidge Dam, Arizona, USA
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