September weather forecast
Griffith Park, MD

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Weather in September

The first month of the autumn, September, is still a warm month in Griffith Park, Maryland, with an average temperature fluctuating between 76.5°F (24.7°C) and 58.6°F (14.8°C).

Temperature

With the onset of September, Griffith Park's average high-temperature slightly adjusts, moderately receding from August's 82.9°F (28.3°C) to a still moderately hot 76.5°F (24.7°C). Griffith Park sees an average low-temperature of 58.6°F (14.8°C) during September.

Humidity

The average relative humidity in September is 77%.

Rainfall

In Griffith Park, in September, during 14.3 rainfall days, 2.17" (55mm) of precipitation is typically accumulated. Throughout the year, there are 158.7 rainfall days, and 30.91" (785mm) of precipitation is accumulated.

Snowfall

In Griffith Park, Maryland, snow does not fall in June through September.

Daylight

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, in Griffith Park, sunrise is at 7:04 am and sunset at 6:52 pm EDT.

Sunshine

In September, the average sunshine in Griffith Park is 9.1h.

UV index

In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 4 in September transforms into the following instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.

Frequently asked questions

What is the temperature in September?

September temperatures in Griffith Park vary between a high-temperature of 76.5°F (24.7°C) and a low-temperature of 58.6°F (14.8°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is calculated to be 89.6°F (32°C).

What is the average humidity in September?

The average relative humidity in September is 77%.

How many days does it rain in September?

In Griffith Park, in September, it is raining for 14.3 days, with typically 2.17" (55mm) of accumulated precipitation.

When it does not snow in Griffith Park?

In Griffith Park, snow does not fall in June through September.

Does it snow in September?

In Griffith Park, Maryland, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Griffith Park have in September?

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

When is the sunrise / 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 7:04 am and sunset at 6:52 pm EDT.

How long on average sun shines in September in Griffith Park?

The average sunshine duration in September is 9.1h.

How high is the UV index in September?

In Griffith Park, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
Griffith Park, MD

Average temperature in September - Griffith Park, MD
  • Average high temperature in September: 76.5°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 (37.8°F).

  • Average low temperature in September: 58.6°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

Average pressure in September
Griffith Park, MD

Average pressure in September - Griffith Park, MD
  • Average pressure in September: 30.06"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
Griffith Park, MD

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

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in September
Griffith Park, MD

Average humidity in September - Griffith Park, MD
  • Average humidity in September: 77%

The months with the highest relative humidity are May and October (79%).
The months with the lowest relative humidity are April and July (74%).

Average rainfall in September
Griffith Park, MD

Average rainfall in September - Griffith Park, MD
  • Average rainfall in September: 2.17"

The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.93").

Average rainfall days in September
Griffith Park, MD

Average rainfall days in September - Griffith Park, MD
  • Average rainfall days in September: 14.3 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in September
Griffith Park, MD

Average snowfall in September - Griffith Park, MD
  • Average snowfall in September: 0"

The month with the highest snowfall is March (4.09").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Griffith Park, MD

Average snowfall days in September - Griffith Park, MD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Griffith Park, MD

Average daylight in September / Average sunshine in September - Griffith Park, 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 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in September
Griffith Park, MD

Average sunshine days in September - Griffith Park, MD
  • Average sunshine days in September: 14.2 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in September
Griffith Park, MD

Average UV index in September - Griffith Park, MD
  • Average UV index in September: 4

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
Griffith Park, MD

Average cloud cover in September - Griffith Park, MD
  • Average cloud cover in September: 36

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in September
Griffith Park, MD

Average visibility in September - Griffith Park, 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).

Griffith Park, Maryland, USA

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