September weather forecast
Cypress Creek, MD

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Weather in September

The first month of the autumn, September, is still a warm month in Cypress Creek, Maryland, with an average temperature ranging between max 77.4°F (25.2°C) and min 63.3°F (17.4°C).

Temperature

The beginning of September subtly marks a decrease in the average high-temperature, transitioning from 83.7°F (28.7°C) in August to a still moderately hot 77.4°F (25.2°C). Throughout September, the temperature falls to an average low of 63.3°F (17.4°C).

Humidity

In September, the average relative humidity is 75%.

Rainfall

The month with the least rainfall is September, when the rain falls for 11.8 days and typically collects 1.89" (48mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Cypress Creek, the average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:35 am and sunset at 7:36 pm. On the last day of September, sunrise is at 7:01 am and sunset at 6:49 pm EDT.

Sunshine

The average sunshine in September in Cypress Creek is 9.2h.

UV index

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.
Note: In September, a regular UV index of 5 translates into these guidelines:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Cypress Creek in September?

September temperatures vary between a high-temperature of 77.4°F (25.2°C) and a low-temperature of 63.3°F (17.4°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is computed to be 91.4°F (33°C).

What is the average humidity in September?

In Cypress Creek, the average relative humidity in September is 75%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 11.8 days and typically collects 1.89" (48mm) of precipitation.

How many days does it rain in September?

In Cypress Creek, in September, it is raining for 11.8 days, with typically 1.89" (48mm) of accumulated precipitation.

When it does not snow?

In Cypress Creek, snow does not fall in May through October.

What is the average length of the day in September?

In Cypress Creek, the average day length in September is 12h and 26min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:35 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:49 pm EDT.

How long on average sun shines in September?

The average sunshine duration in September is 9.2h.

How high is the UV index in September?

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
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
Cypress Creek, MD

Average temperature in September - Cypress Creek, 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
Cypress Creek, MD

Average pressure in September - Cypress Creek, 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
Cypress Creek, MD

Average wind speed in September - Cypress Creek, 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
Cypress Creek, MD

Average humidity in September - Cypress Creek, 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
Cypress Creek, MD

Average rainfall in September - Cypress Creek, 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
Cypress Creek, MD

Average rainfall days in September - Cypress Creek, 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
Cypress Creek, MD

Average snowfall in September - Cypress Creek, 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
Cypress Creek, MD

Average snowfall days in September - Cypress Creek, 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
Cypress Creek, MD

Average daylight in September / Average sunshine in September - Cypress Creek, 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
Cypress Creek, MD

Average sunshine days in September - Cypress Creek, 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
Cypress Creek, MD

Average UV index in September - Cypress Creek, 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
Cypress Creek, MD

Average cloud cover in September - Cypress Creek, 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
Cypress Creek, MD

Average visibility in September - Cypress Creek, 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).

Cypress Creek, Maryland, USA

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