September weather forecast
Cold Harbor Farms, VA

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Weather in September

September, the first month of the autumn in Cold Harbor Farms, is also a moderately hot month, with temperature in the range of an average high of 81.3°F (27.4°C) and an average low of 63.3°F (17.4°C).

Temperature

Start of September brings a slight shift in the average high-temperature, dipping a bit from August's tropical 88°F (31.1°C) to a warm 81.3°F (27.4°C). Throughout the month of September, the average temperature dips to an enjoyable 63.3°F (17.4°C) at night.

Heat index

September's average heat index is evaluated at a hot 86°F (30°C). With constant exposure and activity, a state of weariness might ensue, leading to potential heat cramps.
The heat index's values are generally associated with conditions in shade and light breezes. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.

Humidity

In Cold Harbor Farms, the average relative humidity in September is 74%.

Rainfall

The month with the least rainfall is September, when the rain falls for 10.5 days and typically collects 1.1" (28mm) of precipitation.

Snowfall

In Cold Harbor Farms, snow does not fall in May through October.

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of September, sunrise is at 6:40 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:53 pm EDT.

Sunshine

In Cold Harbor Farms, the average sunshine in September is 8.7h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The average daily UV index of 5 in September transforms into the following instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
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Frequently asked questions

What is the average September temperature in Cold Harbor Farms?

Cold Harbor Farms in September has an average high-temperature of 81.3°F (27.4°C) and an average low-temperature of 63.3°F (17.4°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in September is evaluated at 86°F (30°C).

What is the average humidity in September in Cold Harbor Farms?

In Cold Harbor Farms, Virginia, the average relative humidity in September is 74%.

What is the driest month in Cold Harbor Farms?

September is the month with the least rainfall in Cold Harbor Farms, Virginia. Rain falls for 10.5 days and accumulates 1.1" (28mm) of precipitation.

How much does it rain in Cold Harbor Farms in September?

In Cold Harbor Farms, in September, it is raining for 10.5 days, with typically 1.1" (28mm) of accumulated precipitation.

When it does not snow in Cold Harbor Farms?

May through October are months without snowfall in Cold Harbor Farms.

How many hours of daylight does Cold Harbor Farms have in September?

In Cold Harbor Farms, the average day length in September is 12h and 25min.

What time are sunrise and sunset in September in Cold Harbor Farms?

In September, on the first day of the month, sunrise is at 6:40 am and sunset at 7:37 pm. On the last day of the month, in Cold Harbor Farms, Virginia, sunrise is at 7:04 am and sunset at 6:53 pm EDT.

How long on average sun shines in September in Cold Harbor Farms?

In September, the average sunshine duration is 8.7h.

What is the UV index reading in September in Cold Harbor Farms?

The average daily maximum UV index in September in Cold Harbor Farms, Virginia, is 5. A UV Index value 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
Cold Harbor Farms, VA

Average temperature in September - Cold Harbor Farms, VA
  • Average high temperature in September: 81.3°F

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (44.8°F).

  • Average low temperature in September: 63.3°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).

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Average pressure in September
Cold Harbor Farms, VA

Average pressure in September - Cold Harbor Farms, VA
  • Average pressure in September: 30.04"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
Cold Harbor Farms, VA

Average wind speed in September - Cold Harbor Farms, VA
  • Average wind speed in September: 5.7mph

The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in September
Cold Harbor Farms, VA

Average humidity in September - Cold Harbor Farms, VA
  • Average humidity in September: 74%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (69%).

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Average rainfall in September
Cold Harbor Farms, VA

Average rainfall in September - Cold Harbor Farms, VA
  • Average rainfall in September: 1.1"

The wettest month (with the highest rainfall) is August (2.05").
The driest month (with the least rainfall) is September (1.1").

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Average rainfall days in September
Cold Harbor Farms, VA

Average rainfall days in September - Cold Harbor Farms, VA
  • Average rainfall days in September: 10.5 days

The month with the highest number of rainy days is May (14.8 days).
The months with the least rainy days are October and November (8.2 days).

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Average snowfall in September
Cold Harbor Farms, VA

Average snowfall in September - Cold Harbor Farms, VA
  • Average snowfall in September: 0"

The month with the highest snowfall is March (0.67").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Cold Harbor Farms, VA

Average snowfall days in September - Cold Harbor Farms, VA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Cold Harbor Farms, VA

Average daylight in September / Average sunshine in September - Cold Harbor Farms, VA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • 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 12min).

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Average sunshine days in September
Cold Harbor Farms, VA

Average sunshine days in September - Cold Harbor Farms, VA
  • Average sunshine days in September: 18.6 days

The months with the most sunshine days are October and December (21.4 days).
The month with the least sunshine days is May (14.4 days).

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Average UV index in September
Cold Harbor Farms, VA

Average UV index in September - Cold Harbor Farms, VA
  • Average UV index in September: 5

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in September
Cold Harbor Farms, VA

Average cloud cover in September - Cold Harbor Farms, VA
  • Average cloud cover in September: 39

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 33).

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Average visibility in September
Cold Harbor Farms, VA

Average visibility in September - Cold Harbor Farms, VA
  • 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).

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Cold Harbor Farms, Virginia, USA

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