September weather forecast
Lorella, OR

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Weather in September

The first month of the autumn, September, is still a warm month in Lorella, Oregon, with an average temperature ranging between min 44.1°F (6.7°C) and max 74.1°F (23.4°C).

Temperature

September signifies a gentle decline in Lorella's average high-temperature, easing from 82.8°F (28.2°C) in August to a still moderately hot 74.1°F (23.4°C). Against the high September temperatures, Lorella records an average drop to a chilly 44.1°F (6.7°C) at night.

Humidity

The average relative humidity in September is 51%.

Rainfall

In Lorella, during September, the rain falls for 4 days and regularly aggregates up to 0.39" (10mm) of precipitation. In Lorella, during the entire year, the rain falls for 97.4 days and collects up to 12.01" (305mm) of precipitation.

Snowfall

January through June, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.08" (2mm) of snow. In Lorella, during the entire year, snow falls for 64.6 days and aggregates up to 38.31" (973mm) of snow.

Daylight

The average length of the day in September is 12h and 28min.
On the first day of the month, sunrise is at 6:31 am and sunset at 7:38 pm. On the last day of September, sunrise is at 7:01 am and sunset at 6:47 pm PDT.

Sunshine

In September, the average sunshine is 11.1h.

UV index

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The average daily UV index of 4 in September transforms into the following instructions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.

Frequently asked questions

What are September temperatures?

The high-temperature during September is 74.1°F (23.4°C) and the low-temperature is 44.1°F (6.7°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, in August is appraised at 82.4°F (28°C).

What is the average humidity in September in Lorella?

The average relative humidity in September is 51%.

How many days does it rain in September?

In Lorella, in September, during 4 rainfall days, 0.39" (10mm) of precipitation is typically accumulated.

When does it start snowing?

September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.08" (2mm) of snow.

What is the average length of the day in September?

In September, the average day length is 12h and 28min.

When are sunrise and sunset in September?

On the first day of September, sunrise is at 6:31 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:47 pm PDT.

How long on average sun shines in September?

The average sunshine duration in September is 11.1h.

What is the UV index intensity in September?

In Lorella, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Lorella, OR

Average temperature in September - Lorella, OR
  • Average high temperature in September: 74.1°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (37.2°F).

  • Average low temperature in September: 44.1°F

The month with the highest average low temperature is August (49.3°F).
The coldest month (with the lowest average low temperature) is December (25°F).

Average pressure in September
Lorella, OR

Average pressure in September - Lorella, OR
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is January (30.18"Hg).
The months with the lowest atmospheric pressure are June, July and August (29.96"Hg).

Average wind speed in September
Lorella, OR

Average wind speed in September - Lorella, OR
  • Average wind speed in September: 5.1mph

The windiest month (with the highest average wind speed) is March (6.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in September
Lorella, OR

Average humidity in September - Lorella, OR
  • Average humidity in September: 51%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (47%).

Average rainfall in September
Lorella, OR

Average rainfall in September - Lorella, OR
  • Average rainfall in September: 0.39"

The wettest month (with the highest rainfall) is December (1.97").
The driest month (with the least rainfall) is July (0.16").

Average rainfall days in September
Lorella, OR

Average rainfall days in September - Lorella, OR
  • Average rainfall days in September: 4 days

The month with the highest number of rainy days is March (12.5 days).
The month with the least rainy days is August (3.1 days).

Average snowfall in September
Lorella, OR

Average snowfall in September - Lorella, OR
  • Average snowfall in September: 0.08"

The month with the highest snowfall is December (9.57").
The months with the least snowfall are July and August (0").

Average snowfall days in September
Lorella, OR

Average snowfall days in September - Lorella, OR
  • Average snowfall days in September: 0.2 days

The month with the highest number of snowfall days is December (13.4 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in September /
Average sunshine in September
Lorella, OR

Average daylight in September / Average sunshine in September - Lorella, OR
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in September: 11h and 1min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

Average sunshine days in September
Lorella, OR

Average sunshine days in September - Lorella, OR
  • Average sunshine days in September: 24.8 days

The month with the most sunshine days is August (25.7 days).
The month with the least sunshine days is March (11.5 days).

Average UV index in September
Lorella, OR

Average UV index in September - Lorella, OR
  • Average UV index in September: 4

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

Average cloud cover in September
Lorella, OR

Average cloud cover in September - Lorella, OR
  • Average cloud cover in September: 14

The months with the most cloud cover are March and December (Cloud cover 44).
The months with the least cloud cover are July and August (Cloud cover 8).

Average visibility in September
Lorella, OR

Average visibility in September - Lorella, OR
  • Average visibility in September: 6mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

Lorella, Oregon, USA

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