September weather forecast
Rancho Cordova, CA

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Weather in September

September, the first month of the autumn in Rancho Cordova, is still a tropical month, with an average temperature varying between 88.5°F (31.4°C) and 58.8°F (14.9°C).

Temperature

September records an average high-temperature of a still hot 88.5°F (31.4°C), indicating a minor variation from the preceding month. Rancho Cordova registers a marked temperature plunge to a mild 58.8°F (14.9°C) during the cool September nights.

Heat index

In September, the average heat index is appraised at a hot 89.6°F (32°C). Exhaustion might be the outcome of enduring exposure and continuous activity, with a risk of heat cramps.
Remember that heat index calculations are made for conditions in the shade with light wind. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.

Humidity

July and September, with an average relative humidity of 43%, are the least humid months in Rancho Cordova.

Rainfall

In Rancho Cordova, in September, it is raining for 2.4 days, with typically 0.2" (5mm) of accumulated precipitation. Throughout the year, in Rancho Cordova, California, there are 67.3 rainfall days, and 10.79" (274mm) of precipitation is accumulated.

Snowfall

January through November are months without snowfall in Rancho Cordova.

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of September, sunrise is at 6:35 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:48 pm PDT.

Sunshine

In September, the average sunshine in Rancho Cordova is 11.2h.

UV index

In September, the average daily maximum UV index in Rancho Cordova, California, is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 5 during September translates into the following guidance:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Enhance your sun protection with tightly woven, yet airy clothing.
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Frequently asked questions

How hot is September in Rancho Cordova?

September temperatures in Rancho Cordova vary between a high-temperature of 88.5°F (31.4°C) and a low-temperature of 58.8°F (14.9°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in September is appraised at 89.6°F (32°C).

What is the least humid month in Rancho Cordova?

July and September, with an average relative humidity of 43%, are the least humid months in Rancho Cordova.

What is the average humidity in September in Rancho Cordova?

In September, the average relative humidity in Rancho Cordova is 43%.

How much does it rain in Rancho Cordova in September?

In Rancho Cordova, California, in September, it is raining for 2.4 days, with typically 0.2" (5mm) of accumulated precipitation.

When it does not snow in Rancho Cordova?

January through November are months without snowfall.

What is the average length of the day in September in Rancho Cordova?

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

When is the sunrise / sunset in September in Rancho Cordova?

In September, on the first day of the month, sunrise is at 6:35 am and sunset at 7:34 pm. On the last day of the month, in Rancho Cordova, California, sunrise is at 7:00 am and sunset at 6:48 pm PDT.

How long on average sun shines in September in Rancho Cordova?

The average sunshine duration in September in Rancho Cordova, California, is 11.2h.

What is the UV index intensity in September in Rancho Cordova?

In September, the average daily maximum UV index in Rancho Cordova, California, is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to the Sun's 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
Rancho Cordova, CA

Average temperature in September - Rancho Cordova, CA
  • Average high temperature in September: 88.5°F

The warmest month (with the highest average high temperature) is July (94.5°F).
The month with the lowest average high temperature is December (54.1°F).

  • Average low temperature in September: 58.8°F

The months with the highest average low temperature are July and August (60.1°F).
The coldest month (with the lowest average low temperature) is December (40.8°F).

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Average pressure in September
Rancho Cordova, CA

Average pressure in September - Rancho Cordova, CA
  • Average pressure in September: 29.92"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in September
Rancho Cordova, CA

Average wind speed in September - Rancho Cordova, CA
  • Average wind speed in September: 4.1mph

The windiest month (with the highest average wind speed) is February (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.1mph).

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Average humidity in September
Rancho Cordova, CA

Average humidity in September - Rancho Cordova, CA
  • Average humidity in September: 43%

The month with the highest relative humidity is March (75%).
The months with the lowest relative humidity are July and September (43%).

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Average rainfall in September
Rancho Cordova, CA

Average rainfall in September - Rancho Cordova, CA
  • Average rainfall in September: 0.2"

The wettest month (with the highest rainfall) is March (1.97").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in September
Rancho Cordova, CA

Average rainfall days in September - Rancho Cordova, CA
  • Average rainfall days in September: 2.4 days

The month with the highest number of rainy days is March (12 days).
The months with the least rainy days are June and July (1.3 days).

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Average snowfall days in September
Rancho Cordova, CA

Average snowfall days in September - Rancho Cordova, CA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in September /
Average sunshine in September
Rancho Cordova, CA

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • 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 December (Average sunshine: 5h and 48min).

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Average sunshine days in September
Rancho Cordova, CA

Average sunshine days in September - Rancho Cordova, CA
  • Average sunshine days in September: 26.6 days

The month with the most sunshine days is July (29.3 days).
The month with the least sunshine days is March (18.1 days).

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Average UV index in September
Rancho Cordova, CA

Average UV index in September - Rancho Cordova, CA
  • Average UV index in September: 5

The months with the highest UV index are June and 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
Rancho Cordova, CA

Average cloud cover in September - Rancho Cordova, 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
Rancho Cordova, CA

Average visibility in September - Rancho Cordova, 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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Rancho Cordova, California, USA

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