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
During the shift to September, a minor reduction in average high-temperature is observed, shifting from a warm 74.7°F (23.7°C) in August to a comfortable 67.8°F (19.9°C). Lachine records an average low of 53.6°F (12°C) throughout the nights in September.Humidity
In September, the average relative humidity is 77%.Rainfall
In Lachine, during September, the rain falls for 11.3 days and regularly aggregates up to 1.06" (27mm) of precipitation. Throughout the year, there are 118.1 rainfall days, and 16.42" (417mm) of precipitation is accumulated.Snowfall
In Lachine, Michigan, snow does not fall in June through September.Daylight
The average length of the day in September in Lachine is 12h and 31min.On the first day of the month, sunrise is at 6:57 am and sunset at 8:11 pm. On the last day of September, sunrise is at 7:32 am and sunset at 7:16 pm EDT.
Sunshine
In Lachine, Michigan, the average sunshine in September is 8h.UV index
In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In September, a daily maximum UV index of 3 leads to the following instructions:
Take precautions - Protection against sunburn is recommended. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Frequently asked questions
What is the average September temperature in Lachine?
What is the average humidity in September in Lachine?
How many days does it rain in September in Lachine?
When it does not snow in Lachine?
Does it snow in Lachine in September?
What is the average length of the day in September in Lachine?
What time are sunrise and sunset in September in Lachine?
How many hours of sunshine does Lachine have in September?
What is the UV index intensity in September in Lachine?
Average temperature in September
Lachine, MI
- Average high temperature in September: 67.8°F
The warmest month (with the highest average high temperature) is July (75.6°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in September: 53.6°F
The month with the highest average low temperature is July (59°F).
The coldest months (with the lowest average low temperature) are January and February (17.1°F).
Average pressure in September
Lachine, MI
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Lachine, MI
- Average wind speed in September: 7.9mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is July (7mph).
Average humidity in September
Lachine, MI
- Average humidity in September: 77%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Lachine, MI
- Average rainfall in September: 1.06"
The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is February (0.87").
Average rainfall days in September
Lachine, MI
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in September
Lachine, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.63").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Lachine, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (19 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lachine, MI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 1h and 54min).
Average sunshine days in September
Lachine, MI
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is May (16.1 days).
The month with the least sunshine days is January (11.3 days).
Average UV index in September
Lachine, 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, November and December (UV index 1).
Average cloud cover in September
Lachine, MI
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 79).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Lachine, 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).
Lachine, Michigan, USA
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