September weather forecast
Moreno Knolls, CA

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Weather in September

September, the first month of the autumn in Moreno Knolls, is still a tropical month, with an average temperature varying between 86.2°F (30.1°C) and 61.7°F (16.5°C).

Temperature

Moreno Knolls's weather in September indicates an average high-temperature of a still tropical 86.2°F (30.1°C), nearly consistent with the 90.5°F (32.5°C) of August. Moreno Knolls's nights during September are marked by a pronounced drop from daytime temperatures, experiencing an average low of 61.7°F (16.5°C).

Heat index

The average heat index in September is appraised at a tropical 86°F (30°C). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.

Humidity

In September, the average relative humidity is 45%.

Rainfall

In Moreno Knolls, California, during September, the rain falls for 3.2 days and regularly aggregates up to 0.16" (4mm) of precipitation. In Moreno Knolls, during the entire year, the rain falls for 54.3 days and collects up to 6.54" (166mm) of precipitation.

Snowfall

In Moreno Knolls, snow does not fall in January, March through December.

Daylight

The average length of the day in September is 12h and 22min.
On the first day of September, sunrise is at 6:22 am and sunset at 7:13 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 6:33 pm PDT.

Sunshine

In September, the average sunshine in Moreno Knolls, California, is 10.6h.

UV index

In September, the average daily maximum UV index in Moreno Knolls is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.
Note: In September, the maximum UV index of 6 translates into these guidelines:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
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Frequently asked questions

How hot does it get in Moreno Knolls in September?

The average high-temperature, in September, in Moreno Knolls, is 86.2°F (30.1°C), while the average low-temperature is 61.7°F (16.5°C). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, is appraised at 86°F (30°C).

What is the average humidity in September in Moreno Knolls?

In September, the average relative humidity is 45%.

How many days does it rain in September in Moreno Knolls?

In Moreno Knolls, in September, it is raining for 3.2 days, with typically 0.16" (4mm) of accumulated precipitation.

When it does not snow in Moreno Knolls?

In Moreno Knolls, California, snow does not fall in January, March through December.

What is the average length of the day in September in Moreno Knolls?

The average day length in September is 12h and 22min.

When is the sunrise / sunset in September in Moreno Knolls?

In September, on the first day of the month, sunrise is at 6:22 am and sunset at 7:13 pm. On the last day of the month, in Moreno Knolls, sunrise is at 6:42 am and sunset at 6:33 pm PDT.

How many hours of sunshine does Moreno Knolls have in September?

In September, the average sunshine duration is 10.6h.

What is the UV index intensity in September in Moreno Knolls?

In September, the average daily maximum UV index in Moreno Knolls, California, is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unsafe exposure to Sun's UV rays.
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
Moreno Knolls, CA

Average temperature in September - Moreno Knolls, CA
  • Average high temperature in September: 86.2°F

The warmest month (with the highest average high temperature) is August (90.5°F).
The month with the lowest average high temperature is December (59.9°F).

  • Average low temperature in September: 61.7°F

The month with the highest average low temperature is August (64°F).
The coldest month (with the lowest average low temperature) is December (42.4°F).

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Average pressure in September
Moreno Knolls, CA

Average pressure in September - Moreno Knolls, CA
  • Average pressure in September: 29.87"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in September
Moreno Knolls, CA

Average wind speed in September - Moreno Knolls, CA
  • Average wind speed in September: 4.4mph

The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).

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Average humidity in September
Moreno Knolls, CA

Average humidity in September - Moreno Knolls, CA
  • Average humidity in September: 45%

The months with the highest relative humidity are February, March and May (56%).
The month with the lowest relative humidity is August (43%).

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Average rainfall in September
Moreno Knolls, CA

Average rainfall in September - Moreno Knolls, CA
  • Average rainfall in September: 0.16"

The wettest months (with the highest rainfall) are February and December (1.26").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in September
Moreno Knolls, CA

Average rainfall days in September - Moreno Knolls, CA
  • Average rainfall days in September: 3.2 days

The month with the highest number of rainy days is March (7.5 days).
The month with the least rainy days is June (1.3 days).

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Average snowfall in September
Moreno Knolls, CA

Average snowfall in September - Moreno Knolls, CA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Moreno Knolls, CA

Average snowfall days in September - Moreno Knolls, CA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are January, April, May, June, July, August, September, October and November (0 days).

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Average daylight in September /
Average sunshine in September
Moreno Knolls, CA

Average daylight in September / Average sunshine in September - Moreno Knolls, CA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 10h and 4min

The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

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Average sunshine days in September
Moreno Knolls, CA

Average sunshine days in September - Moreno Knolls, CA
  • Average sunshine days in September: 24.2 days

The month with the most sunshine days is June (27.4 days).
The month with the least sunshine days is February (20.9 days).

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Average UV index in September
Moreno Knolls, CA

Average UV index in September - Moreno Knolls, CA
  • Average UV index in September: 6

The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in September
Moreno Knolls, CA

Average cloud cover in September - Moreno Knolls, CA
  • Average cloud cover in September: 7

The month with the most cloud cover is March (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 5).

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Average visibility in September
Moreno Knolls, CA

Average visibility in September - Moreno Knolls, CA
  • Average visibility in September: 6mi

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

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Moreno Knolls, California, USA

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