September weather forecast
Foxhall, MD

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Weather in September

The first month of the autumn, September, is still a warm month in Foxhall, Maryland, with temperature in the range of an average low of 61.2°F (16.2°C) and an average high of 78.6°F (25.9°C).

Temperature

Foxhall in September undergoes a slight reduction in the average high-temperature, shifting from August's moderately hot 85.6°F (29.8°C) to a still warm 78.6°F (25.9°C). Foxhall's average low-temperature is measured at an enjoyable 61.2°F (16.2°C) during September.

Humidity

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

Rainfall

The months with the least rainfall are January and September Rain falls for 8.1 days and accumulates 0.51" (13mm) of rain.

Snowfall

May through October are months without snowfall.

Daylight

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

Sunshine

In Foxhall, the average sunshine in September is 9h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 5 during September translates into these guidelines:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Updated: Jul 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

In September, the average high-temperature and low-temperature are 78.6°F (25.9°C) and 61.2°F (16.2°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in August is evaluated at 95°F (35°C).

What is the average humidity in September?

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

What is the driest month?

The months with the least rainfall in Foxhall are January and September Rain falls for 8.1 days and accumulates 0.51" (13mm) of rain.

How many days does it rain in September?

In Foxhall, in September, it is raining for 8.1 days, with typically 0.51" (13mm) of accumulated precipitation.

When it does not snow?

In Foxhall, snow does not fall in May through October.

What is the average length of the day in September?

In Foxhall, 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 6:37 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.

How long on average sun shines in September?

In Foxhall, the average sunshine duration in September is 9h.

What is the UV index reading in September?

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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
Foxhall, MD

Average temperature in September - Foxhall, MD
  • Average high temperature in September: 78.6°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (40.1°F).

  • Average low temperature in September: 61.2°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).

Average pressure in September
Foxhall, MD

Average pressure in September - Foxhall, 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
Foxhall, MD

Average wind speed in September - Foxhall, MD
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is March (7.7mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity in September
Foxhall, MD

Average humidity in September - Foxhall, MD
  • Average humidity in September: 74%

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

Average rainfall in September
Foxhall, MD

Average rainfall in September - Foxhall, MD
  • Average rainfall in September: 0.51"

The wettest month (with the highest rainfall) is August (1.5").
The driest months (with the least rainfall) are January and September (0.51").

Average rainfall days in September
Foxhall, MD

Average rainfall days in September - Foxhall, MD
  • Average rainfall days in September: 8.1 days

The month with the highest number of rainy days is July (13.5 days).
The month with the least rainy days is November (5.6 days).

Average snowfall in September
Foxhall, MD

Average snowfall in September - Foxhall, MD
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Foxhall, MD

Average snowfall days in September - Foxhall, MD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (3.6 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
Foxhall, MD

Average daylight in September / Average sunshine in September - Foxhall, 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 0min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).

Average sunshine days in September
Foxhall, MD

Average sunshine days in September - Foxhall, MD
  • Average sunshine days in September: 19.1 days

The month with the most sunshine days is November (23 days).
The month with the least sunshine days is July (14.3 days).

Average UV index in September
Foxhall, MD

Average UV index in September - Foxhall, 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
Foxhall, MD

Average cloud cover in September - Foxhall, MD
  • Average cloud cover in September: 36

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in September
Foxhall, MD

Average visibility in September - Foxhall, 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).

Foxhall, Maryland, USA

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