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
September brings a minor shift in the average high-temperature, adjusting from a moderately hot 74.5°F (23.6°C) in August to an agreeable 68°F (20°C). An average nighttime temperature of 55.4°F (13°C) is noted during the month of September.Humidity
In September, the average relative humidity in Alvin, Michigan, is 77%.Rainfall
September is the month with the least rainfall. Rain falls for 11.6 days and accumulates 1.18" (30mm) of precipitation.Snowfall
June through September are months without snowfall in Alvin.Daylight
The average length of the day in September in Alvin is 12h and 30min.On the first day of September, sunrise is at 6:57 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:15 pm EDT.
Sunshine
The average sunshine in September in Alvin is 8.2h.UV index
The average daily maximum UV index in September in Alvin is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 3 suggests these recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Frequently asked questions
What is the usual temperature for Alvin in September?
What is the average humidity in September in Alvin?
What is the driest month in Alvin?
How many days does it rain in September in Alvin?
When it does not snow in Alvin?
Does it snow in Alvin in September?
How many hours of daylight does Alvin have in September?
When is the sunrise / sunset in September in Alvin?
How long on average sun shines in September in Alvin?
What is the UV index reading in September in Alvin?
Average temperature in September
Alvin, MI
- Average high temperature in September: 68°F
The warmest month (with the highest average high temperature) is July (75°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in September: 55.4°F
The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in September
Alvin, MI
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is March (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Alvin, MI
- Average wind speed in September: 8.8mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).
Average humidity in September
Alvin, MI
- Average humidity in September: 77%
The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is May (74%).
Average rainfall in September
Alvin, MI
- Average rainfall in September: 1.18"
The wettest month (with the highest rainfall) is May (2.64").
The driest month (with the least rainfall) is September (1.18").
Average rainfall days in September
Alvin, MI
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is October (16.5 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in September
Alvin, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Alvin, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Alvin, MI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 8h and 1min
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 12min).
Average sunshine days in September
Alvin, MI
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is May (15.8 days).
The month with the least sunshine days is January (8.7 days).
Average UV index in September
Alvin, MI
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in September
Alvin, MI
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in September
Alvin, 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).
Alvin, Michigan, USA
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