September weather forecastRomeo, MI
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Romeo, Michigan, with an average temperature ranging between max 71.2°F (21.8°C) and min 54.5°F (12.5°C).Temperature
September marks a gentle change in average high-temperature, declining from August's moderately hot 77.7°F (25.4°C) to a pleasant 71.2°F (21.8°C). Romeo's temperature drops to an average low of 54.5°F (12.5°C) during the nights of September.Humidity
In Romeo, the average relative humidity in September is 79%.Rainfall
In Romeo, in September, it is raining for 13.5 days, with typically 1.65" (42mm) of accumulated precipitation. In Romeo, during the entire year, the rain falls for 158.2 days and collects up to 26.14" (664mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:57 am and sunset at 8:06 pm. On the last day of September, sunrise is at 7:29 am and sunset at 7:14 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 reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 3 during September leads to these instructions:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Romeo, MI
- Average high temperature in September: 71.2°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (27.7°F).
- Average low temperature in September: 54.5°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in September
Romeo, 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
Romeo, MI
- Average wind speed in September: 7.3mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in September
Romeo, MI
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Romeo, MI
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is April (3.03").
The driest month (with the least rainfall) is December (1.61").
Average rainfall days in September
Romeo, MI
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is February (7 days).
Average snowfall in September
Romeo, MI
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.75").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Romeo, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Romeo, MI
- Average daylight in September: 12h and 30min
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 6min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in September
Romeo, MI
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is September (13.8 days).
The month with the least sunshine days is February (8.2 days).
Average UV index in September
Romeo, MI
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Romeo, MI
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
Romeo, MI
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
