September weather forecastEl Rio, AZ
September
Weather in September
The first month of the autumn, September, is still a tropical month in El Rio, Arizona, with temperature in the range of an average high of 90.3°F (32.4°C) and an average low of 72.5°F (22.5°C).Temperature
September registers an average high-temperature of a hot 90.3°F (32.4°C), slightly varied from August's 95°F (35°C). In the month of September, the temperature generally rests at an average low of 72.5°F (22.5°C).Humidity
In El Rio, the average relative humidity in September is 38%.Rainfall
In El Rio, during September, the rain falls for 10.3 days and regularly aggregates up to 1.42" (36mm) of precipitation. Throughout the year, there are 75.6 rainfall days, and 9.53" (242mm) of precipitation is accumulated.Snowfall
March through December are months without snowfall.Daylight
In September, the average length of the day is 12h and 21min.On the first day of September, sunrise is at 5:59 am and sunset at 6:47 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 6:09 pm MST.
Sunshine
The average sunshine in September is 9.7h.UV index
In September, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 7 during September translates into the following guidance:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
El Rio, AZ
- Average high temperature in September: 90.3°F
The warmest month (with the highest average high temperature) is June (97.2°F).
The month with the lowest average high temperature is December (61.7°F).
- Average low temperature in September: 72.5°F
The month with the highest average low temperature is July (78.4°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).
Average pressure in September
El Rio, AZ
- Average pressure in September: 29.87"Hg
The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).
Average wind speed in September
El Rio, AZ
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is May (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in September
El Rio, AZ
- Average humidity in September: 38%
The month with the highest relative humidity is December (45%).
The month with the lowest relative humidity is June (19%).
Average rainfall in September
El Rio, AZ
- Average rainfall in September: 1.42"
The wettest month (with the highest rainfall) is July (1.93").
The driest month (with the least rainfall) is May (0.16").
Average rainfall days in September
El Rio, AZ
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is May (2.3 days).
Average snowfall in September
El Rio, AZ
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.2").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
El Rio, AZ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.2 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
El Rio, AZ
- Average daylight in September: 12h and 24min
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: 9h and 42min
The month with the most sunshine is August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in September
El Rio, AZ
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is May (28.2 days).
The month with the least sunshine days is July (9.6 days).
Average UV index in September
El Rio, AZ
- Average UV index in September: 7
The month with the highest UV index is June (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
El Rio, AZ
- Average cloud cover in September: 13
The months with the most cloud cover are July and December (Cloud cover 19).
The month with the least cloud cover is June (Cloud cover 7).
Average visibility in September
El Rio, 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).
