September weather forecastMerriweather, MI
September
Weather in September
September, the first month of the autumn in Merriweather, is also an enjoyable month, with an average temperature varying between 66.2°F (19°C) and 49.3°F (9.6°C).Temperature
Merriweather in September undergoes a slight reduction in the average high-temperature, shifting from August's moderately hot 74.1°F (23.4°C) to a refreshing 66.2°F (19°C). Merriweather's nights in September experience an average temperature drop to a frosty 49.3°F (9.6°C).Humidity
The average relative humidity in September is 79%.Rainfall
In September, the rain falls for 14 days. Throughout September, 1.93" (49mm) of precipitation is accumulated. In Merriweather, during the entire year, the rain falls for 112.5 days and collects up to 22.68" (576mm) of precipitation.Snowfall
In Merriweather, snow does not fall in June through September.Daylight
In Merriweather, the average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 7:19 am and sunset at 8:37 pm. On the last day of September, sunrise is at 7:56 am and sunset at 7:39 pm EDT.
Sunshine
The average sunshine in September in Merriweather is 7.7h.UV index
The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: An average maximum UV index of 3 in September leads to these recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Merriweather, MI
- Average high temperature in September: 66.2°F
The warmest month (with the highest average high temperature) is July (76.5°F).
The month with the lowest average high temperature is January (19.2°F).
- Average low temperature in September: 49.3°F
The month with the highest average low temperature is July (56.5°F).
The coldest month (with the lowest average low temperature) is January (9.7°F).
Average pressure in September
Merriweather, MI
- Average pressure in September: 30"Hg
The months with the highest atmospheric pressure are February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Merriweather, MI
- Average wind speed in September: 8mph
The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest months (with the lowest average wind speed) are June, July and August (7.1mph).
Average humidity in September
Merriweather, MI
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (71%).
Average rainfall in September
Merriweather, MI
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is April (2.52").
The driest month (with the least rainfall) is February (1.06").
Average rainfall days in September
Merriweather, MI
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is August (14.4 days).
The month with the least rainy days is February (1.5 days).
Average snowfall in September
Merriweather, MI
- Average snowfall in September: 0"
The month with the highest snowfall is December (10.63").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Merriweather, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (23.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Merriweather, MI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 7h and 42min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 1h and 30min).
Average sunshine days in September
Merriweather, MI
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is July (15.5 days).
The month with the least sunshine days is January (7.4 days).
Average UV index in September
Merriweather, MI
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Merriweather, MI
- Average cloud cover in September: 44
The month with the most cloud cover is January (Cloud cover 85).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in September
Merriweather, MI
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, September and October (6mi).
The months with the lowest visibility are January and February (4mi).
