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
As September arrives, Windy Knolls's weather displays a minor decrease in high-temperatures, transitioning from August's 83.7°F (28.7°C) to a still warm 77.4°F (25.2°C). An average low-temperature of 63.3°F (17.4°C) is noted in Windy Knolls during the month of September.Humidity
In Windy Knolls, the average relative humidity in September is 75%.Rainfall
September is the month with the least rainfall. Rain falls for 11.8 days and accumulates 1.89" (48mm) of precipitation.Snowfall
May through October are months without snowfall in Windy Knolls, Maryland.Daylight
The average length of the day in September in Windy Knolls is 12h and 26min.On the first day of September, sunrise is at 6:35 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:50 pm EDT.
Sunshine
The average sunshine in September in Windy Knolls is 9.2h.UV index
The average daily maximum UV index in September in Windy Knolls, Maryland, is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In September, an average UV index of 5 transforms into the following instructions:
Guard yourself - Precautionary measures against sun damage are advocated. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Frequently asked questions
What are the temperatures in Windy Knolls in September?
What is the average humidity in September in Windy Knolls?
What is the driest month in Windy Knolls?
How much does it rain in Windy Knolls in September?
When it does not snow in Windy Knolls?
What is the average length of the day in September in Windy Knolls?
What time are sunrise and sunset in September in Windy Knolls?
How long on average sun shines in September in Windy Knolls?
What is the UV index reading in September in Windy Knolls?
Average temperature in September
Windy Knolls, MD
- Average high temperature in September: 77.4°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (39.6°F).
- Average low temperature in September: 63.3°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure in September
Windy Knolls, MD
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Windy Knolls, MD
- Average wind speed in September: 7mph
The windiest month (with the highest average wind speed) is March (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in September
Windy Knolls, MD
- Average humidity in September: 75%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March, April and November (72%).
Average rainfall in September
Windy Knolls, MD
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in September
Windy Knolls, MD
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in September
Windy Knolls, MD
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Windy Knolls, MD
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Windy Knolls, 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 30min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in September
Windy Knolls, MD
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in September
Windy Knolls, MD
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, November and December (UV index 2).
Average cloud cover in September
Windy Knolls, MD
- Average cloud cover in September: 34
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in September
Windy Knolls, MD
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Windy Knolls, Maryland, USA
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