September weather forecast and climate
Dunnigan, CA

Weather in September

The first month of the autumn, September, is still a tropical month in Dunnigan, California, with temperature in the range of an average low of 59.9°F (15.5°C) and an average high of 89.8°F (32.1°C).

Temperature

In Dunnigan, the average high-temperature slightly decreases, from a very hot 95.9°F (35.5°C) in August, to a tropical 89.8°F (32.1°C). In Dunnigan, in September, the average low-temperature is 59.9°F (15.5°C).

Humidity

With an average relative humidity of 38%, September is the least humid month in Dunnigan.

Rainfall

In Dunnigan, California, in September, during 1.6 rainfall days, 0.12" (3mm) of precipitation is typically accumulated. In Dunnigan, California, during the entire year, the rain falls for 70.9 days and collects up to 12.13" (308mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in Dunnigan is 12.4h.

Sunshine

In Dunnigan, the average sunshine in September is 11.2h.

UV index

The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 6 interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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 Dunnigan?

The average high-temperature, in September, in Dunnigan, California, is 89.8°F (32.1°C), while the average low-temperature is 59.9°F (15.5°C).

What is the least humid month in Dunnigan?

The least humid month is September, with an average relative humidity of 38%.

What is the average humidity in September in Dunnigan?

In Dunnigan, the average relative humidity in September is 38%.

How much does it rain in Dunnigan in September?

In Dunnigan, during September, the rain falls for 1.6 days and regularly aggregates up to 0.12" (3mm) of precipitation.

When it does not snow in Dunnigan?

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

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

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

How long on average sun shines in September in Dunnigan?

The average sunshine in September is 11.2h.

What is the UV index reading in September in Dunnigan?

The average daily maximum UV index in September in Dunnigan, California, is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in September
Dunnigan, CA

Average temperature in September - Dunnigan, CA
  • Average high temperature in September: 89.8°F

The warmest month (with the highest average high temperature) is July (97.2°F).
The month with the lowest average high temperature is December (54.3°F).

  • Average low temperature in September: 59.9°F

The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is December (41.7°F).

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Average pressure in September
Dunnigan, CA

Average pressure in September - Dunnigan, CA
  • Average pressure in September: 29.91"

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

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Average wind speed in September
Dunnigan, CA

Average wind speed in September - Dunnigan, CA
  • Average wind speed in September: 5.2mph

The windiest months (with the highest average wind speed) are February and March (6.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in September
Dunnigan, CA

Average humidity in September - Dunnigan, CA
  • Average humidity in September: 38%

The month with the highest relative humidity is March (72%).
The month with the lowest relative humidity is September (38%).

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Average rainfall in September
Dunnigan, CA

Average rainfall in September - Dunnigan, CA
  • Average rainfall in September: 0.12"

The wettest month (with the highest rainfall) is February (2.44").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in September
Dunnigan, CA

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

The month with the highest number of rainy days is March (12.4 days).
The month with the least rainy days is July (0.8 days).

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Average snowfall days in September
Dunnigan, CA

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

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

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

Average daylight in September / Average sunshine in September - Dunnigan, 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: 11.2h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 5.7h).

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Average sunshine days in September
Dunnigan, CA

Average sunshine days in September - Dunnigan, CA
  • Average sunshine days in September: 28 days

Months with the most sunshine days are July and August (29.6 days).
The month with the least sunshine days is March (17.2 days).

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Average UV index in September
Dunnigan, CA

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

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
Dunnigan, CA

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

The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 4).

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Average visibility in September
Dunnigan, CA

Average visibility in September - Dunnigan, 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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