September weather forecastSnowflake, AZ
September
Weather in September
September, the first month of the autumn in Snowflake, is still a warm month, with an average temperature ranging between max 79.7°F (26.5°C) and min 58.6°F (14.8°C).Temperature
September is characterized by a mild reduction in the average high-temperature, from 85.5°F (29.7°C) in August to a still warm 79.7°F (26.5°C). Snowflake's average low-temperature in the month of September is recorded at a moderate 58.6°F (14.8°C).Humidity
In Snowflake, the average relative humidity in September is 40%.Rainfall
In September, in Snowflake, the rain falls for 7.8 days. Throughout September, 0.63" (16mm) of precipitation is accumulated. In Snowflake, during the entire year, the rain falls for 66.9 days and collects up to 7.09" (180mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day in Snowflake is 12h and 23min.On the first day of September in Snowflake, sunrise is at 5:54 am and sunset at 6:46 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 6:05 pm MST.
Sunshine
The average sunshine in September in Snowflake is 10.2h.UV index
In Snowflake, Arizona, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 5 suggests these recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Snowflake, AZ
- Average high temperature in September: 79.7°F
The warmest months (with the highest average high temperature) are June and July (86.5°F).
The month with the lowest average high temperature is January (46°F).
- Average low temperature in September: 58.6°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).
Average pressure in September
Snowflake, AZ
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Snowflake, AZ
- Average wind speed in September: 8.6mph
The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest month (with the lowest average wind speed) is January (7.5mph).
Average humidity in September
Snowflake, AZ
- Average humidity in September: 40%
The month with the highest relative humidity is January (62%).
The month with the lowest relative humidity is June (21%).
Average rainfall in September
Snowflake, AZ
- Average rainfall in September: 0.63"
The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in September
Snowflake, AZ
- Average rainfall days in September: 7.8 days
The month with the highest number of rainy days is July (13.8 days).
The month with the least rainy days is June (2.2 days).
Average snowfall in September
Snowflake, AZ
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.11").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Snowflake, AZ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (4.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Snowflake, AZ
- Average daylight in September: 12h and 24min
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: 10h and 12min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The months with the least sunshine are January and December (Average sunshine: 6h and 48min).
Average sunshine days in September
Snowflake, AZ
- Average sunshine days in September: 19.3 days
The month with the most sunshine days is June (26.7 days).
The month with the least sunshine days is July (13.1 days).
Average UV index in September
Snowflake, AZ
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, November and December (UV index 2).
Average cloud cover in September
Snowflake, AZ
- Average cloud cover in September: 12
The month with the most cloud cover is December (Cloud cover 23).
The month with the least cloud cover is June (Cloud cover 9).
Average visibility in September
Snowflake, 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).





