September weather forecast and climate
Loomis, CA

Weather in September

September, the first month of the autumn, in Loomis, is also a hot month, with average temperature fluctuating between 86.9°F (30.5°C) and 58.1°F (14.5°C).

Temperature

In September, the average high-temperature is almost the same as in August - a still tropical 86.9°F (30.5°C). The average low-temperature, in Loomis, is 58.1°F (14.5°C).

Heat index

In September, the average heat index is evaluated at a hot 86.7°F (30.4°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'real feel', 'feels like', or 'apparent temperature', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (wind, metabolic differences, clothing). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In September, the average relative humidity is 41%.

Rainfall

In Loomis, during September, the rain falls for 2.6 days and regularly aggregates up to 0.24" (6mm) of precipitation. In Loomis, during the entire year, the rain falls for 81.2 days and collects up to 22.64" (575mm) of precipitation.

Snowfall

In Loomis, California, snow does not fall in January, March through November.

Daylight

In Loomis, the average length of the day in September is 12.4h.

Sunshine

In Loomis, the average sunshine in September is 11.3h.

UV index

The average daily maximum UV index in Loomis is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to the UV radiation for the average person.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Loomis?

In September, in Loomis, California, the average high-temperature is 86.9°F (30.5°C), and the average low-temperature is 58.1°F (14.5°C). In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), that combines both air temperature and relative humidity, is appraised at 86.7°F (30.4°C).

What is the average humidity in September in Loomis?

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

How many days does it rain in September in Loomis?

In Loomis, California, in September, during 2.6 rainfall days, 0.24" (6mm) of precipitation is typically accumulated.

When it does not snow in Loomis?

January, March through November are months without snowfall in Loomis, California.

What is the average length of the day in September in Loomis?

The average length of the day in September in Loomis, California, is 12.4h.

How many hours of sunshine does Loomis have in September?

In September, the average sunshine in Loomis, California, is 11.3h.

What is the UV index intensity in September in Loomis?

In Loomis, California, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV rays.

Average temperature in September
Loomis, CA

Average temperature in September - Loomis, CA
  • Average high temperature in September: 86.9°F

The warmest month (with the highest average high temperature) is July (93°F).
The month with the lowest average high temperature is December (54°F).

  • Average low temperature in September: 58.1°F

The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is December (39.6°F).

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Average pressure in September
Loomis, CA

Average pressure in September - Loomis, CA
  • Average pressure in September: 29.92"

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.9").

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Average wind speed in September
Loomis, CA

Average wind speed in September - Loomis, CA
  • Average wind speed in September: 4mph

The windiest month (with the highest average wind speed) is February (5.5mph).
The calmest months (with the lowest average wind speed) are August and September (4mph).

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Average humidity in September
Loomis, CA

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

The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is July (40%).

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Average rainfall in September
Loomis, CA

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

The wettest month (with the highest rainfall) is March (4.33").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in September
Loomis, CA

Average rainfall days in September - Loomis, CA
  • Average rainfall days in September: 2.6 days

The month with the highest number of rainy days is March (14.6 days).
The month with the least rainy days is July (1 days).

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Average snowfall in September
Loomis, CA

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

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

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Average snowfall days in September
Loomis, CA

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

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

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

Average daylight in September / Average sunshine in September - Loomis, CA
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in September: 11.3h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 5.8h).

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Average sunshine days in September
Loomis, CA

Average sunshine days in September - Loomis, CA
  • Average sunshine days in September: 26.6 days

The month with the most sunshine days is July (29.2 days).
The month with the least sunshine days is March (15.7 days).

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Average UV index in September
Loomis, CA

Average UV index in September - Loomis, CA
  • Average UV index in September: 5

Months with the highest UV index are June and July (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in September
Loomis, CA

Average cloud cover in September - Loomis, CA
  • Average cloud cover in September: 8

The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 4).

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Average visibility in September
Loomis, CA

Average visibility in September - Loomis, CA
  • Average visibility in September: 6mi

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

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