Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September denotes a minimal variation in the average high-temperature to a warm 84.9°F (29.4°C) from August's 89.8°F (32.1°C). During September, Finley notes a substantial drop from the daytime peak to an average minimum temperature of 54°F (12.2°C).Heat index
The heat index in September is appraised at a tropical 86°F (30°C). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.Heat index guidelines indicate values are for light wind scenarios and shaded regions. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', gives an indication of how one might feel in terms of heat after considering humidity. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Humidity
In September, the average relative humidity in Finley is 49%.Rainfall
In Finley, California, in September, it is raining for 2.4 days, with typically 0.12" (3mm) of accumulated precipitation. In Finley, during the entire year, the rain falls for 88.1 days and collects up to 20.28" (515mm) of precipitation.Snowfall
April through October are months without snowfall in Finley, California.Daylight
The average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:41 am and sunset at 7:41 pm. On the last day of September, sunrise is at 7:07 am and sunset at 6:55 pm PDT.
Sunshine
The average sunshine in September in Finley is 11h.UV index
In September, the average daily maximum UV index in Finley 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 average person.Note: A daily high UV index of 5 in September leads to these guidelines:
Heed the precautions - Suggestions to avoid sunburn are made. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Frequently asked questions
How hot does it get in Finley in September?
What is the average humidity in September in Finley?
How many days does it rain in September in Finley?
When it does not snow in Finley?
What is the average length of the day in September in Finley?
What time are sunrise and sunset in September in Finley?
How long on average sun shines in September in Finley?
What is the UV index reading in September in Finley?
Average temperature in September
Finley, CA
- Average high temperature in September: 84.9°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is December (52.9°F).
- Average low temperature in September: 54°F
The months with the highest average low temperature are July and August (56.7°F).
The coldest month (with the lowest average low temperature) is December (37.2°F).
Average pressure in September
Finley, 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
Finley, CA
- Average wind speed in September: 4.4mph
The windiest months (with the highest average wind speed) are April and May (5.5mph).
The calmest month (with the lowest average wind speed) is November (4.2mph).
Average humidity in September
Finley, CA
- Average humidity in September: 49%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is July (48%).
Average rainfall in September
Finley, CA
- Average rainfall in September: 0.12"
The wettest month (with the highest rainfall) is February (3.94").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in September
Finley, CA
- Average rainfall days in September: 2.4 days
The month with the highest number of rainy days is March (15.2 days).
The month with the least rainy days is July (1.1 days).
Average snowfall in September
Finley, CA
- Average snowfall in September: 0"
The months with the highest snowfall are January and February (0.47").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Finley, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Finley, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 11h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in September
Finley, CA
- Average sunshine days in September: 27.2 days
The month with the most sunshine days is July (29.7 days).
The month with the least sunshine days is March (14.3 days).
Average UV index in September
Finley, CA
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is November (UV index 2).
Average cloud cover in September
Finley, CA
- Average cloud cover in September: 10
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in September
Finley, CA
- Average visibility in September: 6mi
The months with the highest visibility are February, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, March and December (5mi).
Finley, California, USA
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