September weather forecast
Mons, CA

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Weather in September

September, the first month of the autumn in Mons, is still a warm month, with an average temperature varying between 84.9°F (29.4°C) and 61.9°F (16.6°C).

Temperature

Mons transitions into September recording an average high-temperature of a moderately hot 84.9°F (29.4°C), closely aligning with the preceding month's temperature. Contrary to the day's heat, an average low-temperature of 61.9°F (16.6°C) is recorded during the nights in September in Mons.

Heat index

The heat index value for September is estimated at 84.2°F (29°C). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.
Given the heat index, its values are aligned with shaded sites and gentle winds. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of 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 especially crucial for babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.

Humidity

In September, the average relative humidity is 41%.

Rainfall

In Mons, in September, it is raining for 3.6 days, with typically 0.24" (6mm) of accumulated precipitation. In Mons, during the entire year, the rain falls for 52.8 days and collects up to 7.01" (178mm) of precipitation.

Snowfall

January, April through October and December are months without snowfall in Mons.

Daylight

In Mons, the average length of the day in September is 12h and 22min.
On the first day of September, sunrise is at 6:21 am and sunset at 7:12 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 6:32 pm PDT.

Sunshine

In Mons, the average sunshine in September is 10.5h.

UV index

In Mons, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: In September, the maximum UV index of 6 suggests this advice:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
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Frequently asked questions

How hot is September in Mons?

In September, in Mons, the average high-temperature is 84.9°F (29.4°C), and the average low-temperature is 61.9°F (16.6°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, in September is estimated at 84.2°F (29°C).

What is the average humidity in September in Mons?

In Mons, the average relative humidity in September is 41%.

How much does it rain in Mons in September?

In Mons, California, in September, during 3.6 rainfall days, 0.24" (6mm) of precipitation is typically accumulated.

When it does not snow in Mons?

In Mons, snow does not fall in January, April through October and December.

How many hours of daylight does Mons have in September?

In Mons, California, the average day length in September is 12h and 22min.

What time are sunrise and sunset in September in Mons?

On the first day of September in Mons, California, sunrise is at 6:21 am and sunset at 7:12 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 6:32 pm PDT.

How many hours of sunshine does Mons have in September?

In Mons, the average sunshine duration in September is 10.5h.

How high is the UV index in September in Mons?

In September, the average daily maximum UV index in Mons is 6. A UV Index value of 6 to 7 symbolizes a high 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
Mons, CA

Average temperature in September - Mons, CA
  • Average high temperature in September: 84.9°F

The warmest month (with the highest average high temperature) is August (90°F).
The month with the lowest average high temperature is December (57°F).

  • Average low temperature in September: 61.9°F

The month with the highest average low temperature is August (65.3°F).
The coldest month (with the lowest average low temperature) is December (40.5°F).

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Average pressure in September
Mons, CA

Average pressure in September - Mons, CA
  • Average pressure in September: 29.86"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

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Average wind speed in September
Mons, CA

Average wind speed in September - Mons, CA
  • Average wind speed in September: 5.1mph

The windiest months (with the highest average wind speed) are April and May (6.8mph).
The calmest month (with the lowest average wind speed) is September (5.1mph).

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Average humidity in September
Mons, CA

Average humidity in September - Mons, CA
  • Average humidity in September: 41%

The month with the highest relative humidity is February (54%).
The month with the lowest relative humidity is August (37%).

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Average rainfall in September
Mons, CA

Average rainfall in September - Mons, CA
  • Average rainfall in September: 0.24"

The wettest month (with the highest rainfall) is February (1.38").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in September
Mons, CA

Average rainfall days in September - Mons, CA
  • Average rainfall days in September: 3.6 days

The month with the highest number of rainy days is July (6.3 days).
The month with the least rainy days is June (1.8 days).

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Average snowfall in September
Mons, CA

Average snowfall in September - Mons, CA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.28").
The months with the least snowfall are January, April, May, June, July, August, September, October and December (0").

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Average snowfall days in September
Mons, CA

Average snowfall days in September - Mons, CA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, April, May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Mons, CA

Average daylight in September / Average sunshine in September - Mons, 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 3min

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 48min).

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Average sunshine days in September
Mons, CA

Average sunshine days in September - Mons, CA
  • Average sunshine days in September: 23.2 days

The month with the most sunshine days is October (27.2 days).
The month with the least sunshine days is July (20.7 days).

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Average UV index in September
Mons, CA

Average UV index in September - Mons, CA
  • Average UV index in September: 6

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

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Average cloud cover in September
Mons, CA

Average cloud cover in September - Mons, CA
  • Average cloud cover in September: 7

The month with the most cloud cover is December (Cloud cover 23).
The months with the least cloud cover are June and August (Cloud cover 6).

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Average visibility in September
Mons, CA

Average visibility in September - Mons, 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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Mons, California, USA

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