September weather forecast
Hillcrest Heights, MD

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Weather in September

September, the first month of the autumn in Hillcrest Heights, is still a warm month, with an average temperature ranging between min 61.7°F (16.5°C) and max 77.5°F (25.3°C).

Temperature

The onset of September aligns with a soft reduction in the average high-temperature, gently falling from 84°F (28.9°C) in August to a still warm 77.5°F (25.3°C). Hillcrest Heights observes an average nighttime temperature of 61.7°F (16.5°C) during September.

Humidity

In Hillcrest Heights, the average relative humidity in September is 74%.

Rainfall

In September, the rain falls for 13.4 days. Throughout September, 2.2" (56mm) of precipitation is accumulated. In Hillcrest Heights, during the entire year, the rain falls for 158.5 days and collects up to 30.12" (765mm) of precipitation.

Snowfall

April 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 in Hillcrest Heights, sunrise is at 6:37 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:51 pm EDT.

Sunshine

The average sunshine in September in Hillcrest Heights, Maryland, is 9.3h.

UV index

In Hillcrest Heights, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: A daily high UV index of 5 in September leads to these guidelines:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.

Frequently asked questions

What is the average September temperature?

In September, the average high-temperature and low-temperature are 77.5°F (25.3°C) and 61.7°F (16.5°C) respectively. In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 91.4°F (33°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, the rain falls for 13.4 days. Throughout September, 2.2" (56mm) of precipitation is accumulated.

When it does not snow?

In Hillcrest Heights, snow does not fall in April through October.

What is the average length of the day in September?

The average day length in September 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 7:37 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:51 pm EDT.

How many hours of sunshine does Hillcrest Heights have in September?

In Hillcrest Heights, the average sunshine duration in September is 9.3h.

What is the UV index reading in September?

In Hillcrest Heights, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health threat 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
Hillcrest Heights, MD

Average temperature in September - Hillcrest Heights, MD
  • Average high temperature in September: 77.5°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in September: 61.7°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27°F).

Average pressure in September
Hillcrest Heights, MD

Average pressure in September - Hillcrest Heights, 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
Hillcrest Heights, MD

Average wind speed in September - Hillcrest Heights, MD
  • Average wind speed in September: 6.3mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity in September
Hillcrest Heights, MD

Average humidity in September - Hillcrest Heights, MD
  • Average humidity in September: 74%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is July (71%).

Average rainfall in September
Hillcrest Heights, MD

Average rainfall in September - Hillcrest Heights, MD
  • Average rainfall in September: 2.2"

The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (1.81").

Average rainfall days in September
Hillcrest Heights, MD

Average rainfall days in September - Hillcrest Heights, MD
  • Average rainfall days in September: 13.4 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (8.6 days).

Average snowfall in September
Hillcrest Heights, MD

Average snowfall in September - Hillcrest Heights, MD
  • Average snowfall in September: 0"

The month with the highest snowfall is January (2.13").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Hillcrest Heights, MD

Average snowfall days in September - Hillcrest Heights, MD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (4.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Hillcrest Heights, MD

Average daylight in September / Average sunshine in September - Hillcrest Heights, MD
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 9h and 2min

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
Hillcrest Heights, MD

Average sunshine days in September - Hillcrest Heights, MD
  • Average sunshine days in September: 14 days

The month with the most sunshine days is November (19.8 days).
The months with the least sunshine days are May and July (10.9 days).

Average UV index in September
Hillcrest Heights, MD

Average UV index in September - Hillcrest Heights, 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, February, November and December (UV index 2).

Average cloud cover in September
Hillcrest Heights, MD

Average cloud cover in September - Hillcrest Heights, MD
  • Average cloud cover in September: 34

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 29).

Average visibility in September
Hillcrest Heights, MD

Average visibility in September - Hillcrest Heights, 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).

Hillcrest Heights, Maryland, USA

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