September weather forecast
Ironsides, MD

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Weather in September

September, the first month of the autumn in Ironsides, is also a moderately hot month, with an average temperature varying between 79.3°F (26.3°C) and 61°F (16.1°C).

Temperature

September heralds a minor drop in average high-temperature, sliding from August's hot 86.2°F (30.1°C) to a warm 79.3°F (26.3°C). Ironsides temperatures generally rest at a low of 61°F (16.1°C) during the September nights.

Humidity

In Ironsides, the average relative humidity in September is 76%.

Rainfall

In Ironsides, in September, during 11.5 rainfall days, 2.05" (52mm) of precipitation is typically accumulated. Throughout the year, there are 155.6 rainfall days, and 31.61" (803mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Ironsides, the average length of the day in September is 12h and 25min.
On the first day of September, sunrise is at 6:38 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:52 pm EDT.

Sunshine

In September, the average sunshine is 8.6h.

UV index

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, an average UV index of 5 transforms into the following instructions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

In Ironsides, 79.3°F (26.3°C) is the average high-temperature and 61°F (16.1°C) is the average low-temperature during September. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, in August is calculated to be 98.6°F (37°C).

What is the average humidity in September?

In September, the average relative humidity is 76%.

How many days does it rain in September?

In Ironsides, in September, it is raining for 11.5 days, with typically 2.05" (52mm) of accumulated precipitation.

When it does not snow?

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

How many hours of daylight does Ironsides have in September?

In September, the average day length is 12h and 25min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:38 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:52 pm EDT.

How many hours of sunshine does Ironsides have in September?

The average sunshine duration in September is 8.6h.

How high is the UV index in September?

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health risk from 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
Ironsides, MD

Average temperature in September - Ironsides, MD
  • Average high temperature in September: 79.3°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in September: 61°F

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).

Average pressure in September
Ironsides, MD

Average pressure in September - Ironsides, 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
Ironsides, MD

Average wind speed in September - Ironsides, MD
  • Average wind speed in September: 5.3mph

The windiest months (with the highest average wind speed) are March and April (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in September
Ironsides, MD

Average humidity in September - Ironsides, MD
  • Average humidity in September: 76%

The months with the highest relative humidity are October and December (78%).
The months with the lowest relative humidity are January, April and July (73%).

Average rainfall in September
Ironsides, MD

Average rainfall in September - Ironsides, MD
  • Average rainfall in September: 2.05"

The wettest month (with the highest rainfall) is August (3.66").
The driest month (with the least rainfall) is January (1.97").

Average rainfall days in September
Ironsides, MD

Average rainfall days in September - Ironsides, MD
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is November (8.7 days).

Average snowfall in September
Ironsides, MD

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

The month with the highest snowfall is January (2.52").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Ironsides, MD

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

The month with the highest number of snowfall days is January (4.9 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
Ironsides, MD

Average daylight in September / Average sunshine in September - Ironsides, 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: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).

Average sunshine days in September
Ironsides, MD

Average sunshine days in September - Ironsides, MD
  • Average sunshine days in September: 17.2 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (11.5 days).

Average UV index in September
Ironsides, MD

Average UV index in September - Ironsides, 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
Ironsides, MD

Average cloud cover in September - Ironsides, MD
  • Average cloud cover in September: 39

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in September
Ironsides, MD

Average visibility in September - Ironsides, MD
  • Average visibility in September: 5mi

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

Ironsides, Maryland, USA

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