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
With the arrival of September, Hillsdale experiences a modest decline in average high-temperatures, transitioning from a moderately hot 77.5°F (25.3°C) in August to an agreeable 72°F (22.2°C). During September, the temperature tends to dip to an average of 53.8°F (12.1°C) at night.Humidity
In September, the average relative humidity is 80%.Rainfall
In September, the rain falls for 13.8 days. Throughout September, 1.61" (41mm) of precipitation is accumulated. In Hillsdale, during the entire year, the rain falls for 145.8 days and collects up to 24.02" (610mm) of precipitation.Snowfall
In Hillsdale, snow does not fall in June through September.Daylight
In Hillsdale, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 7:05 am and sunset at 8:11 pm. On the last day of September, sunrise is at 7:35 am and sunset at 7:21 pm EDT.
Sunshine
The average sunshine in September in Hillsdale is 7.8h.UV index
In Hillsdale, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Frequently asked questions
What is the usual temperature for Hillsdale in September?
What is the average humidity in September in Hillsdale?
How much does it rain in Hillsdale in September?
When it does not snow in Hillsdale?
Does it snow in Hillsdale in September?
What is the average length of the day in September in Hillsdale?
What time are sunrise and sunset in September in Hillsdale?
How long on average sun shines in September in Hillsdale?
What is the UV index intensity in September in Hillsdale?
Average temperature in September
Hillsdale, MI
- Average high temperature in September: 72°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in September: 53.8°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 (17.1°F).
Average pressure in September
Hillsdale, MI
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Hillsdale, MI
- Average wind speed in September: 7.2mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in September
Hillsdale, MI
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is October (77%).
Average rainfall in September
Hillsdale, MI
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is December (1.22").
Average rainfall days in September
Hillsdale, MI
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in September
Hillsdale, MI
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Hillsdale, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Hillsdale, MI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in September
Hillsdale, MI
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is May (9.6 days).
Average UV index in September
Hillsdale, MI
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Hillsdale, MI
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in September
Hillsdale, MI
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Hillsdale, Michigan, USA
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