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 onset of September aligns with a soft reduction in the average high-temperature, gently falling from a moderately hot 78.1°F (25.6°C) in August to a pleasant 71.6°F (22°C). During September, the temperature is averaged to a low of 54.3°F (12.4°C) at night.Humidity
In September, the average relative humidity in Sylvan Lake is 78%.Rainfall
In Sylvan Lake, during September, the rain falls for 13 days and regularly aggregates up to 1.81" (46mm) of precipitation. In Sylvan Lake, during the entire year, the rain falls for 152.6 days and collects up to 24.88" (632mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Sylvan Lake, the average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:59 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 7:15 pm EDT.
Sunshine
In Sylvan Lake, the average sunshine in September is 8h.UV index
In Sylvan Lake, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In September, a daily UV index of 3 turns into the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Sylvan Lake have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Sylvan Lake have in September?
How high is the UV index in September?
Average temperature in September
Sylvan Lake, MI
- Average high temperature in September: 71.6°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (27.7°F).
- Average low temperature in September: 54.3°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in September
Sylvan Lake, MI
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Sylvan Lake, MI
- Average wind speed in September: 7.2mph
The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in September
Sylvan Lake, MI
- Average humidity in September: 78%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Sylvan Lake, MI
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is December (1.3").
Average rainfall days in September
Sylvan Lake, MI
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (6.2 days).
Average snowfall in September
Sylvan Lake, MI
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Sylvan Lake, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sylvan Lake, MI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in September
Sylvan Lake, MI
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is January (9.5 days).
Average UV index in September
Sylvan Lake, MI
- Average UV index in September: 3
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Sylvan Lake, 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
Sylvan Lake, MI
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Sylvan Lake, Michigan, USA
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