September weather forecast
Walden Farms, MD

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Walden Farms, Maryland, with an average temperature ranging between min 56.7°F (13.7°C) and max 75.2°F (24°C).

Temperature

September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from 81.9°F (27.7°C) in August to a still moderately hot 75.2°F (24°C). An average low-temperature of 56.7°F (13.7°C) is recorded during the nights in September.

Humidity

In September, the average relative humidity in Walden Farms is 79%.

Rainfall

In Walden Farms, during September, the rain falls for 14.5 days and regularly aggregates up to 2.13" (54mm) of precipitation. In Walden Farms, during the entire year, the rain falls for 157.5 days and collects up to 27.52" (699mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of September, sunrise is at 6:37 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:52 pm EDT.

Sunshine

In Walden Farms, the average sunshine in September is 8.9h.

UV index

In Walden Farms, Maryland, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 4 during September translates into the following guidance:
Prioritize safety - Suggestions to prevent sun damage are offered. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
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Frequently asked questions

What is the usual temperature for Walden Farms in September?

The high-temperature during September is 75.2°F (24°C) and the low-temperature is 56.7°F (13.7°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 87.8°F (31°C).

What is the average humidity in September in Walden Farms?

The average relative humidity in September is 79%.

How much does it rain in Walden Farms in September?

In Walden Farms, Maryland, in September, it is raining for 14.5 days, with typically 2.13" (54mm) of accumulated precipitation.

When it does not snow in Walden Farms?

In Walden Farms, Maryland, snow does not fall in June through September.

Does it snow in Walden Farms in September?

In Walden Farms, Maryland, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Walden Farms?

In Walden Farms, Maryland, the average day length in September is 12h and 26min.

When are sunrise and sunset in September in Walden Farms?

In September, on the first day of the month, sunrise is at 6:37 am and sunset at 7:39 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 Walden Farms?

In September, the average sunshine duration in Walden Farms, Maryland, is 8.9h.

What is the UV index reading in September in Walden Farms?

In September, the average daily maximum UV index in Walden Farms, Maryland, is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to the Sun's 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
Walden Farms, MD

Average temperature in September - Walden Farms, MD
  • Average high temperature in September: 75.2°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (36.7°F).

  • Average low temperature in September: 56.7°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).

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Average pressure in September
Walden Farms, MD

Average pressure in September - Walden Farms, 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).

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Average wind speed in September
Walden Farms, MD

Average wind speed in September - Walden Farms, MD
  • Average wind speed in September: 5.7mph

The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).

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Average humidity in September
Walden Farms, MD

Average humidity in September - Walden Farms, MD
  • Average humidity in September: 79%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is April (75%).

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Average rainfall in September
Walden Farms, MD

Average rainfall in September - Walden Farms, MD
  • Average rainfall in September: 2.13"

The wettest month (with the highest rainfall) is August (3.23").
The driest month (with the least rainfall) is February (1.61").

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Average rainfall days in September
Walden Farms, MD

Average rainfall days in September - Walden Farms, MD
  • Average rainfall days in September: 14.5 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (7.6 days).

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Average snowfall in September
Walden Farms, MD

Average snowfall in September - Walden Farms, MD
  • Average snowfall in September: 0"

The month with the highest snowfall is March (3.03").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Walden Farms, MD

Average snowfall days in September - Walden Farms, MD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Walden Farms, MD

Average daylight in September / Average sunshine in September - Walden Farms, 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 24min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in September
Walden Farms, MD

Average sunshine days in September - Walden Farms, MD
  • Average sunshine days in September: 13.9 days

The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is May (10.8 days).

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Average UV index in September
Walden Farms, MD

Average UV index in September - Walden Farms, 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).

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Average cloud cover in September
Walden Farms, MD

Average cloud cover in September - Walden Farms, MD
  • Average cloud cover in September: 37

The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in September
Walden Farms, MD

Average visibility in September - Walden Farms, 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).

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Walden Farms, Maryland, USA

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