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
The arrival of September records an average high-temperature of a still agreeable 70.3°F (21.3°C), closely related to the 71.6°F (22°C) observed in August. Nighttime temperature in Ferndale dips to a mean of 52.2°F (11.2°C) during September.Humidity
The months with the lowest humidity in Ferndale are September and October, with an average relative humidity of 75%.Rainfall
In Ferndale, in September, during 4.4 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. In Ferndale, during the entire year, the rain falls for 110.4 days and collects up to 28.07" (713mm) of precipitation.Snowfall
January, March through December are months without snowfall in Ferndale, California.Daylight
In September, the average length of the day is 12h and 26min.On the first day of the month, sunrise is at 6:45 am and sunset at 7:48 pm. On the last day of September, in Ferndale, sunrise is at 7:13 am and sunset at 7:00 pm PDT.
Sunshine
The average sunshine in September is 10.3h.UV index
In September, the average daily maximum UV index in Ferndale is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 4 during September translates into these guidelines:
Act with care - The suggestion to avoid sunburn is emphasized. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Frequently asked questions
What is the usual temperature for Ferndale in September?
What is the least humid month in Ferndale?
What is the average humidity in September in Ferndale?
How many days does it rain in September in Ferndale?
When it does not snow in Ferndale?
How many hours of daylight does Ferndale have in September?
When is the sunrise / sunset in September in Ferndale?
How long on average sun shines in September in Ferndale?
What is the UV index intensity in September in Ferndale?
Average temperature in September
Ferndale, CA
- Average high temperature in September: 70.3°F
The warmest month (with the highest average high temperature) is August (71.6°F).
The months with the lowest average high temperature are February and December (53.1°F).
- Average low temperature in September: 52.2°F
The month with the highest average low temperature is August (53.2°F).
The coldest month (with the lowest average low temperature) is February (41.7°F).
Average pressure in September
Ferndale, CA
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed in September
Ferndale, CA
- Average wind speed in September: 6.4mph
The windiest months (with the highest average wind speed) are March and June (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in September
Ferndale, CA
- Average humidity in September: 75%
The months with the highest relative humidity are February and March (82%).
The months with the lowest relative humidity are September and October (75%).
Average rainfall in September
Ferndale, CA
- Average rainfall in September: 0.55"
The wettest month (with the highest rainfall) is December (5.16").
The driest months (with the least rainfall) are July and August (0.12").
Average rainfall days in September
Ferndale, CA
- Average rainfall days in September: 4.4 days
The month with the highest number of rainy days is March (16.8 days).
The month with the least rainy days is August (1.8 days).
Average snowfall in September
Ferndale, CA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Ferndale, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Ferndale, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 10h and 2min
The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Ferndale, CA
- Average sunshine days in September: 25.4 days
The month with the most sunshine days is July (28.1 days).
The month with the least sunshine days is March (12.3 days).
Average UV index in September
Ferndale, CA
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 3).
Average cloud cover in September
Ferndale, CA
- Average cloud cover in September: 18
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in September
Ferndale, CA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Ferndale, California, USA
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