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 onset of September aligns with a soft reduction in the average high-temperature, gently falling from 81.9°F (27.7°C) in August to a still moderately hot 75°F (23.9°C). During September, Havenwood Hills consistently records a temperature low averaging a mild 55.9°F (13.3°C).Humidity
The average relative humidity in September is 79%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.8 days and typically collects 2.01" (51mm) of precipitation.Snowfall
May through September are months without snowfall in Havenwood Hills.Daylight
In Havenwood Hills, Maryland, the average length of the day in September is 12h and 26min.On the first day of September in Havenwood Hills, sunrise is at 6:39 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:53 pm EDT.
Sunshine
The average sunshine in September in Havenwood Hills, Maryland, is 8.7h.UV index
In Havenwood Hills, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Guard yourself - Avoiding sunburn is suggested. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Frequently asked questions
What is the average September temperature in Havenwood Hills?
What is the average humidity in September in Havenwood Hills?
What is the driest month in Havenwood Hills?
How many days does it rain in September in Havenwood Hills?
When it does not snow in Havenwood Hills?
Does it snow in Havenwood Hills in September?
What is the average length of the day in September in Havenwood Hills?
When is the sunrise / sunset in September in Havenwood Hills?
How long on average sun shines in September in Havenwood Hills?
How high is the UV index in September in Havenwood Hills?
Average temperature in September
Havenwood Hills, MD
- Average high temperature in September: 75°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.8°F).
- Average low temperature in September: 55.9°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in September
Havenwood Hills, MD
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Havenwood Hills, MD
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in September
Havenwood Hills, MD
- Average humidity in September: 79%
The month with the highest relative humidity is October (80%).
The month with the lowest relative humidity is July (75%).
Average rainfall in September
Havenwood Hills, MD
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in September
Havenwood Hills, MD
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in September
Havenwood Hills, MD
- Average snowfall in September: 0"
The month with the highest snowfall is January (6.81").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Havenwood Hills, MD
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Havenwood Hills, MD
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in September
Havenwood Hills, MD
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in September
Havenwood Hills, MD
- Average UV index in September: 4
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Havenwood Hills, MD
- Average cloud cover in September: 39
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Havenwood Hills, MD
- Average visibility in September: 5mi
The months with the highest visibility are April, June and July (6mi).
The months with the lowest visibility are January, February, March, May, August, September, October, November and December (5mi).
Havenwood Hills, Maryland, USA
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