September weather forecastCedarbrook, MD
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Cedarbrook, Maryland, with an average temperature varying between 75.2°F (24°C) and 57°F (13.9°C).Temperature
The average high-temperature slightly decreases in September, shifting from a warm 81.5°F (27.5°C) in August to a still moderately hot 75.2°F (24°C). Throughout September, Cedarbrook registers a consistent average low-temperature of 57°F (13.9°C).Humidity
In September, the average relative humidity is 79%.Rainfall
In September, the rain falls for 14.1 days. Throughout September, 2.13" (54mm) of precipitation is accumulated. Throughout the year, there are 160.1 rainfall days, and 29.84" (758mm) of precipitation is accumulated.Snowfall
In Cedarbrook, snow does not fall in May through September.Daylight
The average length of the day in September in Cedarbrook is 12h and 26min.On the first day of September, sunrise is at 6:36 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:50 pm EDT.
Sunshine
In Cedarbrook, the average sunshine in September is 9h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Prioritize safety - Suggestions to prevent sun damage are offered. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cedarbrook, MD
- Average high temperature in September: 75.2°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (36.3°F).
- Average low temperature in September: 57°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in September
Cedarbrook, 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 (29.94"Hg).
Average wind speed in September
Cedarbrook, MD
- Average wind speed in September: 5.8mph
The windiest months (with the highest average wind speed) are February and March (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in September
Cedarbrook, MD
- Average humidity in September: 79%
The month with the highest relative humidity is May (81%).
The months with the lowest relative humidity are January, March, April, July and November (76%).
Average rainfall in September
Cedarbrook, MD
- Average rainfall in September: 2.13"
The wettest month (with the highest rainfall) is August (3.31").
The driest month (with the least rainfall) is February (1.93").
Average rainfall days in September
Cedarbrook, MD
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in September
Cedarbrook, MD
- Average snowfall in September: 0"
The month with the highest snowfall is March (3.62").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Cedarbrook, MD
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.6 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
Cedarbrook, MD
- Average daylight in September: 12h and 24min
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: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Cedarbrook, MD
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (10.5 days).
Average UV index in September
Cedarbrook, MD
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Cedarbrook, MD
- Average cloud cover in September: 37
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
Cedarbrook, MD
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
