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 average high-temperature slightly decreases in September, shifting from a moderately hot 74.5°F (23.6°C) in August to an agreeable 68°F (20°C). September brings Harrisville a consistent average low-temperature of 55.4°F (13°C).Humidity
The average relative humidity in September in Harrisville is 77%.Rainfall
The month with the least rainfall is September, when the rain falls for 11.6 days and typically collects 1.18" (30mm) of precipitation.Snowfall
In Harrisville, snow does not fall in June through September.Daylight
The average length of the day in September in Harrisville is 12h and 31min.On the first day of September in Harrisville, sunrise is at 6:56 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 7:15 pm EDT.
Sunshine
The average sunshine in September is 8.2h.UV index
In Harrisville, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 3 suggests these recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Frequently asked questions
What is the average September temperature in Harrisville?
What is the average humidity in September in Harrisville?
What is the driest month in Harrisville?
How much does it rain in Harrisville in September?
When it does not snow in Harrisville?
Does it snow in Harrisville in September?
What is the average length of the day in September in Harrisville?
What time are sunrise and sunset in September in Harrisville?
How long on average sun shines in September in Harrisville?
How high is the UV index in September in Harrisville?
Average temperature in September
Harrisville, 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
Harrisville, 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
Harrisville, 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
Harrisville, 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
Harrisville, 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
Harrisville, 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
Harrisville, 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
Harrisville, 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
Harrisville, 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
Harrisville, 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
Harrisville, 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
Harrisville, 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
Harrisville, 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).
Harrisville, Michigan, USA
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