September weather forecastSanford, MI
September
Weather in September
September, the first month of the autumn in Sanford, is still a pleasant month, with an average temperature ranging between max 70.9°F (21.6°C) and min 52.2°F (11.2°C).Temperature
September brings a minor shift in the average high-temperature, adjusting from a warm 77.4°F (25.2°C) in August to an agreeable 70.9°F (21.6°C). Sanford witnesses an average low-temperature of 52.2°F (11.2°C) throughout the month of September.Humidity
In Sanford, the average relative humidity in September is 78%.Rainfall
In Sanford, in September, it is raining for 7.9 days, with typically 0.59" (15mm) of accumulated precipitation. In Sanford, during the entire year, the rain falls for 104.3 days and collects up to 8.98" (228mm) of precipitation.Snowfall
In Sanford, snow does not fall in May through September.Daylight
In Sanford, the average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 7:02 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 7:19 pm EDT.
Sunshine
In September, the average sunshine is 8.1h.UV index
In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sanford, MI
- Average high temperature in September: 70.9°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in September: 52.2°F
The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in September
Sanford, MI
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Sanford, MI
- Average wind speed in September: 7.2mph
The windiest month (with the highest average wind speed) is April (9.7mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in September
Sanford, MI
- Average humidity in September: 78%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April and May (75%).
Average rainfall in September
Sanford, MI
- Average rainfall in September: 0.59"
The wettest month (with the highest rainfall) is May (1.34").
The driest months (with the least rainfall) are February and November (0.43").
Average rainfall days in September
Sanford, MI
- Average rainfall days in September: 7.9 days
The month with the highest number of rainy days is May (13 days).
The month with the least rainy days is February (3.4 days).
Average snowfall in September
Sanford, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Sanford, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sanford, MI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in September
Sanford, MI
- Average sunshine days in September: 19.8 days
The month with the most sunshine days is September (19.8 days).
The month with the least sunshine days is May (14.7 days).
Average UV index in September
Sanford, MI
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in September
Sanford, MI
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
Sanford, MI
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).





