September weather forecast
Montebello, VA

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Weather in September

September, the first month of the autumn in Montebello, is still a warm month, with an average temperature varying between 55.2°F (12.9°C) and 75.9°F (24.4°C).

Temperature

In Montebello, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's 81.9°F (27.7°C) to a still moderately hot 75.9°F (24.4°C). During the September nights, an average temperature of 55.2°F (12.9°C) is observed in Montebello.

Humidity

The average relative humidity in September is 78%.

Rainfall

In Montebello, in September, it is raining for 14.5 days, with typically 2.32" (59mm) of accumulated precipitation. In Montebello, during the entire year, the rain falls for 164.9 days and collects up to 33.7" (856mm) of precipitation.

Snowfall

June through September are months without snowfall in Montebello.

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of the month, sunrise is at 6:47 am and sunset at 7:45 pm. On the last day of September, sunrise is at 7:11 am and sunset at 7:00 pm EDT.

Sunshine

In Montebello, the average sunshine in September is 8.2h.

UV index

In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum UV index of 4 in September translates into the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. When the Sun is at its strongest around midday, find shade and limit exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.

Frequently asked questions

What is the usual temperature for Montebello in September?

In September, the average high-temperature and low-temperature are 75.9°F (24.4°C) and 55.2°F (12.9°C) respectively. In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 87.8°F (31°C).

What is the average humidity in September in Montebello?

In September, the average relative humidity in Montebello is 78%.

How many days does it rain in September in Montebello?

In Montebello, in September, during 14.5 rainfall days, 2.32" (59mm) of precipitation is typically accumulated.

When it does not snow?

In Montebello, Virginia, snow does not fall in June through September.

Does it snow in September?

In Montebello, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September?

The average day length in September is 12h and 25min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:47 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 7:00 pm EDT.

How many hours of sunshine does Montebello have in September?

In Montebello, the average sunshine duration in September is 8.2h.

What is the UV index intensity in September?

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health risk 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
Montebello, VA

Average temperature in September - Montebello, VA
  • Average high temperature in September: 75.9°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (39°F).

  • Average low temperature in September: 55.2°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).

Average pressure in September
Montebello, VA

Average pressure in September - Montebello, VA
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in September
Montebello, VA

Average wind speed in September - Montebello, VA
  • Average wind speed in September: 4.7mph

The windiest months (with the highest average wind speed) are February and April (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

Average humidity in September
Montebello, VA

Average humidity in September - Montebello, VA
  • Average humidity in September: 78%

The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January and July (74%).

Average rainfall in September
Montebello, VA

Average rainfall in September - Montebello, VA
  • Average rainfall in September: 2.32"

The wettest month (with the highest rainfall) is May (3.7").
The driest months (with the least rainfall) are January and November (2.09").

Average rainfall days in September
Montebello, VA

Average rainfall days in September - Montebello, VA
  • Average rainfall days in September: 14.5 days

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is November (8.8 days).

Average snowfall in September
Montebello, VA

Average snowfall in September - Montebello, VA
  • Average snowfall in September: 0"

The month with the highest snowfall is March (4.92").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Montebello, VA

Average snowfall days in September - Montebello, VA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (7.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Montebello, VA

Average daylight in September / Average sunshine in September - Montebello, 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 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in September
Montebello, VA

Average sunshine days in September - Montebello, VA
  • Average sunshine days in September: 14.7 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (10.1 days).

Average UV index in September
Montebello, VA

Average UV index in September - Montebello, VA
  • Average UV index in September: 4

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in September
Montebello, VA

Average cloud cover in September - Montebello, VA
  • Average cloud cover in September: 42

The month with the most cloud cover is March (Cloud cover 48).
The months with the least cloud cover are June and July (Cloud cover 34).

Average visibility in September
Montebello, VA

Average visibility in September - Montebello, VA
  • Average visibility in September: 5mi

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

Montebello, Virginia, USA

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