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's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's agreeable 72.3°F (22.4°C) to a refreshing 63.5°F (17.5°C). Throughout September nights, Saint David registers an average low-temperature of 45.1°F (7.3°C).Humidity
In September, the average relative humidity is 81%.Rainfall
In September, the rain falls for 13.1 days. Throughout September, 2.05" (52mm) of precipitation is accumulated. Throughout the year, in Saint David, there are 140.8 rainfall days, and 30.12" (765mm) of precipitation is accumulated.Snowfall
In Saint David, snow does not fall in June through September.Daylight
In Saint David, Maine, the average length of the day in September is 12h and 33min.On the first day of the month, sunrise is at 5:52 am and sunset at 7:12 pm. On the last day of September, sunrise is at 6:31 am and sunset at 6:13 pm EDT.
Sunshine
In September, the average sunshine is 7.3h.UV index
In Saint David, Maine, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Frequently asked questions
What are the temperatures in Saint David in September?
What is the average humidity in September in Saint David?
How many days does it rain in September in Saint David?
When it does not snow in Saint David?
Does it snow in Saint David in September?
What is the average length of the day in September in Saint David?
When is the sunrise / sunset in September in Saint David?
How long on average sun shines in September in Saint David?
What is the UV index intensity in September in Saint David?
Average temperature in September
Saint David, ME
- Average high temperature in September: 63.5°F
The warmest month (with the highest average high temperature) is July (74.3°F).
The month with the lowest average high temperature is January (18°F).
- Average low temperature in September: 45.1°F
The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is January (2.8°F).
Average pressure in September
Saint David, ME
- Average pressure in September: 30.01"Hg
The months with the highest atmospheric pressure are March, September and November (30.01"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Saint David, ME
- Average wind speed in September: 6.8mph
The windiest months (with the highest average wind speed) are January and February (8.2mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in September
Saint David, ME
- Average humidity in September: 81%
The month with the highest relative humidity is March (94%).
The month with the lowest relative humidity is May (76%).
Average rainfall in September
Saint David, ME
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is April (2.95").
The driest month (with the least rainfall) is February (1.97").
Average rainfall days in September
Saint David, ME
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is July (17.1 days).
The months with the least rainy days are January and February (4.3 days).
Average snowfall in September
Saint David, ME
- Average snowfall in September: 0"
The month with the highest snowfall is January (14.92").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Saint David, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (21.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Saint David, ME
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 2h and 6min).
Average sunshine days in September
Saint David, ME
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is April (7.9 days).
Average UV index in September
Saint David, ME
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Saint David, ME
- Average cloud cover in September: 44
The month with the most cloud cover is February (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 42).
Average visibility in September
Saint David, ME
- Average visibility in September: 5mi
The months with the highest visibility are May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March, April and December (4mi).
Saint David, Maine, USA
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