September weather forecast
Dixon, CA

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Weather in September

September, the first month of the autumn in Dixon, is still a tropical month, with an average temperature fluctuating between 88.3°F (31.3°C) and 58.1°F (14.5°C).

Temperature

With September's arrival, Dixon's weather records an average high-temperature of a still hot 88.3°F (31.3°C), marking little difference from August's 91.9°F (33.3°C). A notable decrease from the day's highest temperature marks September in Dixon, culminating in an average low of 58.1°F (14.5°C).

Heat index

September's heat index is calculated to be a hot 91.4°F (33°C). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
Heat index determinations are made taking into account the shade and light air movements. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.

Humidity

With an average relative humidity of 47%, September is the least humid month.

Rainfall

In September, the rain falls for 1.6 days. Throughout September, 0.08" (2mm) of precipitation is accumulated. Throughout the year, there are 59.1 rainfall days, and 7.95" (202mm) of precipitation is accumulated.

Daylight

In Dixon, the average length of the day in September is 12h and 25min.
On the first day of September in Dixon, sunrise is at 6:37 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:51 pm PDT.

Sunshine

In Dixon, the average sunshine in September is 11.1h.

UV index

In Dixon, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: A daily high UV index of 5 in September leads to these guidelines:
Be vigilant - Preventing sunburn is recommended. Around midday, solar radiation is most harmful; hence, exposure should be limited. Boost your sun resistance with garments that are densely woven yet spacious.

Frequently asked questions

Is it hot in Dixon during September?

The high-temperature, in September, in Dixon, is 88.3°F (31.3°C), while the low-temperature averages to 58.1°F (14.5°C). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 91.4°F (33°C).

What is the least humid month in Dixon?

The least humid month in Dixon is September, with an average relative humidity of 47%.

What is the average humidity in September in Dixon?

In September, the average relative humidity is 47%.

How many days does it rain in September in Dixon?

In Dixon, in September, it is raining for 1.6 days, with typically 0.08" (2mm) of accumulated precipitation.

How many hours of daylight does Dixon have in September?

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

When are sunrise and sunset in September in Dixon?

On the first day of September, sunrise is at 6:37 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:51 pm PDT.

How long on average sun shines in September in Dixon?

The average sunshine duration in September in Dixon is 11.1h.

What is the UV index reading in September in Dixon?

The average daily maximum UV index in September in Dixon, California, is 5. A UV Index reading of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Dixon, CA

Average temperature in September - Dixon, CA
  • Average high temperature in September: 88.3°F

The warmest month (with the highest average high temperature) is July (92.3°F).
The month with the lowest average high temperature is December (54.5°F).

  • Average low temperature in September: 58.1°F

The month with the highest average low temperature is August (58.5°F).
The coldest month (with the lowest average low temperature) is December (41.4°F).

Average pressure in September
Dixon, CA

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).

Average wind speed in September
Dixon, CA

Average wind speed in September - Dixon, CA
  • Average wind speed in September: 5.3mph

The windiest months (with the highest average wind speed) are May and June (6.6mph).
The calmest months (with the lowest average wind speed) are January and November (5mph).

Average humidity in September
Dixon, CA

Average humidity in September - Dixon, CA
  • Average humidity in September: 47%

The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is September (47%).

Average rainfall in September
Dixon, CA

Average rainfall in September - Dixon, CA
  • Average rainfall in September: 0.08"

The wettest month (with the highest rainfall) is February (1.57").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in September
Dixon, CA

Average rainfall days in September - Dixon, CA
  • Average rainfall days in September: 1.6 days

The month with the highest number of rainy days is March (10.2 days).
The months with the least rainy days are July and August (1.3 days).

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

Average daylight in September / Average sunshine in September - Dixon, 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 42min).

Average sunshine days in September
Dixon, CA

Average sunshine days in September - Dixon, CA
  • Average sunshine days in September: 27.6 days

The months with the most sunshine days are July and August (29.3 days).
The month with the least sunshine days is March (19.7 days).

Average UV index in September
Dixon, CA

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

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

Average cloud cover in September
Dixon, CA

Average cloud cover in September - Dixon, CA
  • Average cloud cover in September: 9

The months with the most cloud cover are March and December (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 6).

Average visibility in September
Dixon, CA

Average visibility in September - Dixon, 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).

Dixon, California, USA

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