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 arrival of September corresponds with a light shift in temperature, down from 81.9°F (27.7°C) in August to a still warm 75°F (23.9°C). September generally records an average low-temperature of 55.9°F (13.3°C).Humidity
The average relative humidity in September in Highfield-Cascade is 79%.Rainfall
September is the month with the least rainfall. Rain falls for 12.8 days and accumulates 2.01" (51mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Highfield-Cascade, the average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 6:38 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:53 pm EDT.
Sunshine
In Highfield-Cascade, the average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index in Highfield-Cascade is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. To guard against the harmful effects of the Sun, minimize exposure during midday. Boost your sun resistance with garments that are densely woven yet spacious.
Frequently asked questions
What are the temperatures in Highfield-Cascade in September?
What is the average humidity in September in Highfield-Cascade?
What is the driest month in Highfield-Cascade?
How many days does it rain in September in Highfield-Cascade?
When it does not snow in Highfield-Cascade?
Does it snow in Highfield-Cascade in September?
What is the average length of the day in September in Highfield-Cascade?
What time are sunrise and sunset in September in Highfield-Cascade?
How long on average sun shines in September in Highfield-Cascade?
How high is the UV index in September in Highfield-Cascade?
Average temperature in September
Highfield-Cascade, 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
Highfield-Cascade, 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
Highfield-Cascade, 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
Highfield-Cascade, 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
Highfield-Cascade, 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
Highfield-Cascade, 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
Highfield-Cascade, 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
Highfield-Cascade, 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
Highfield-Cascade, 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
Highfield-Cascade, 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
Highfield-Cascade, 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
Highfield-Cascade, 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
Highfield-Cascade, 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).
Highfield-Cascade, Maryland, USA
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