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
September signifies a gentle decline in Pima's average high-temperature, easing from 92.1°F (33.4°C) in August to a still tropical 86.7°F (30.4°C). Throughout the month of September, Pima reports a steady low-temperature average of 66.9°F (19.4°C).Heat index
For September, the heat index is computed to be a tropical 86°F (30°C). Long-standing exposure and activity could induce a feeling of tiredness and lead to heat cramps.In the scope of the heat index, its values resonate with shade and light wind conditions. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Humidity
The average relative humidity in September in Pima is 41%.Rainfall
In Pima, in September, it is raining for 9 days, with typically 0.79" (20mm) of accumulated precipitation. Throughout the year, in Pima, there are 78.6 rainfall days, and 8.39" (213mm) of precipitation is accumulated.Snowfall
In Pima, snow does not fall in March through November.Daylight
In Pima, the average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 5:54 am and sunset at 6:43 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 6:04 pm MST.
Sunshine
In Pima, the average sunshine in September is 10.4h.UV index
In Pima, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 6 translates into these guidelines:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Frequently asked questions
How hot is it in Pima in September?
What is the average humidity in September in Pima?
How much does it rain in Pima in September?
When it does not snow in Pima?
How many hours of daylight does Pima have in September?
When are sunrise and sunset in September in Pima?
How long on average sun shines in September in Pima?
How high is the UV index in September in Pima?
Average temperature in September
Pima, AZ
- Average high temperature in September: 86.7°F
The warmest month (with the highest average high temperature) is June (94.3°F).
The month with the lowest average high temperature is December (55.9°F).
- Average low temperature in September: 66.9°F
The month with the highest average low temperature is July (73.9°F).
The coldest month (with the lowest average low temperature) is January (37.4°F).
Average pressure in September
Pima, AZ
- Average pressure in September: 29.94"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
Pima, AZ
- Average wind speed in September: 5.6mph
The windiest months (with the highest average wind speed) are April and May (7.3mph).
The calmest months (with the lowest average wind speed) are January and December (5.4mph).
Average humidity in September
Pima, AZ
- Average humidity in September: 41%
The month with the highest relative humidity is December (51%).
The month with the lowest relative humidity is June (20%).
Average rainfall in September
Pima, AZ
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is July (1.22").
The driest month (with the least rainfall) is May (0.12").
Average rainfall days in September
Pima, AZ
- Average rainfall days in September: 9 days
The month with the highest number of rainy days is July (14.5 days).
The month with the least rainy days is May (2.7 days).
Average snowfall in September
Pima, AZ
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.31").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Pima, AZ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.4 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
Pima, 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 2min
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 0min).
Average sunshine days in September
Pima, AZ
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is May (27.3 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in September
Pima, AZ
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Pima, AZ
- Average cloud cover in September: 13
The month with the most cloud cover is December (Cloud cover 20).
The months with the least cloud cover are May and June (Cloud cover 8).
Average visibility in September
Pima, 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).
Pima, Arizona, USA
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