September weather forecast
Wheaton Crest, MD

Share

Weather in September

The first month of the autumn, September, is also a moderately hot month in Wheaton Crest, Maryland, with an average temperature fluctuating between 78.1°F (25.6°C) and 60.8°F (16°C).

Temperature

The transition to September results in a modest reduction in average high-temperature, moving from a moderately hot 84.9°F (29.4°C) in August to a still warm 78.1°F (25.6°C). Wheaton Crest's temperature lowers to a mean of 60.8°F (16°C) during the nights in September.

Humidity

In Wheaton Crest, the average relative humidity in September is 74%.

Rainfall

In Wheaton Crest, in September, during 12.5 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. In Wheaton Crest, during the entire year, the rain falls for 160.9 days and collects up to 32.99" (838mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of September, sunrise is at 6:37 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:52 pm EDT.

Sunshine

The average sunshine in September is 8.9h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.

Frequently asked questions

What are the temperatures in Wheaton Crest in September?

The high-temperature in Wheaton Crest during September is 78.1°F (25.6°C) and the low-temperature is 60.8°F (16°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is estimated at 93.2°F (34°C).

What is the average humidity in September?

In September, the average relative humidity is 74%.

How much does it rain in September?

In September, in Wheaton Crest, Maryland, the rain falls for 12.5 days. Throughout September, 2.24" (57mm) of precipitation is accumulated.

When it does not snow?

In Wheaton Crest, snow does not fall in May through October.

How many hours of daylight does Wheaton Crest have in September?

In September, the average day length in Wheaton Crest is 12h and 26min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:37 am and sunset at 7:38 pm. On the last day of the month, in Wheaton Crest, sunrise is at 7:03 am and sunset at 6:52 pm EDT.

How many hours of sunshine does Wheaton Crest have in September?

In September, the average sunshine duration is 8.9h.

What is the UV index intensity in September?

In Wheaton Crest, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Wheaton Crest, MD

Average temperature in September - Wheaton Crest, MD
  • Average high temperature in September: 78.1°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39°F).

  • Average low temperature in September: 60.8°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

Average pressure in September
Wheaton Crest, MD

Average pressure in September - Wheaton Crest, 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 (29.95"Hg).

Average wind speed in September
Wheaton Crest, MD

Average wind speed in September - Wheaton Crest, MD
  • Average wind speed in September: 5.7mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in September
Wheaton Crest, MD

Average humidity in September - Wheaton Crest, MD
  • Average humidity in September: 74%

The months with the highest relative humidity are May, October and December (76%).
The month with the lowest relative humidity is July (70%).

Average rainfall in September
Wheaton Crest, MD

Average rainfall in September - Wheaton Crest, MD
  • Average rainfall in September: 2.24"

The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is January (2.17").

Average rainfall days in September
Wheaton Crest, MD

Average rainfall days in September - Wheaton Crest, MD
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (8.8 days).

Average snowfall in September
Wheaton Crest, MD

Average snowfall in September - Wheaton Crest, MD
  • Average snowfall in September: 0"

The months with the highest snowfall are January and March (3.03").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Wheaton Crest, MD

Average snowfall days in September - Wheaton Crest, MD
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (5.1 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
Wheaton Crest, MD

Average daylight in September / Average sunshine in September - Wheaton Crest, 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: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in September
Wheaton Crest, MD

Average sunshine days in September - Wheaton Crest, MD
  • Average sunshine days in September: 15.6 days

The month with the most sunshine days is November (19.4 days).
The months with the least sunshine days are May and July (11 days).

Average UV index in September
Wheaton Crest, MD

Average UV index in September - Wheaton Crest, 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
Wheaton Crest, MD

Average cloud cover in September - Wheaton Crest, MD
  • Average cloud cover in September: 37

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in September
Wheaton Crest, MD

Average visibility in September - Wheaton Crest, MD
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

Wheaton Crest, Maryland, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location