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
Start of September brings a shift in the average high-temperature, falling from August's tropical 86.5°F (30.3°C) to a moderately hot 74.8°F (23.8°C). During September, Fruitvale observes a consistent average nighttime temperature of 53.4°F (11.9°C).Humidity
In September, the average relative humidity is 48%.Rainfall
In Fruitvale, in September, during 3.9 rainfall days, 0.24" (6mm) of precipitation is typically accumulated. In Fruitvale, during the entire year, the rain falls for 82.2 days and collects up to 5.43" (138mm) of precipitation.Snowfall
Months with snowfall are January through March, September, November and December. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Fruitvale, during the entire year, snow falls for 18.5 days and aggregates up to 7.8" (198mm) of snow.Daylight
In Fruitvale, the average length of the day in September is 12h and 32min.On the first day of September, sunrise is at 6:23 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:43 pm PDT.
Sunshine
The average sunshine in September is 11.1h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Put precautions into practice - Protective measures against sun-induced damage are advised. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Fruitvale in September?
What is the average humidity in September?
How many days does it rain in September?
When does it start snowing in Fruitvale?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Fruitvale, WA
- Average high temperature in September: 74.8°F
The warmest month (with the highest average high temperature) is August (86.5°F).
The month with the lowest average high temperature is December (36.9°F).
- Average low temperature in September: 53.4°F
The month with the highest average low temperature is August (60.3°F).
The coldest month (with the lowest average low temperature) is December (25.5°F).
Average pressure in September
Fruitvale, WA
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed in September
Fruitvale, WA
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest month (with the lowest average wind speed) is December (4.4mph).
Average humidity in September
Fruitvale, WA
- Average humidity in September: 48%
The month with the highest relative humidity is January (81%).
The months with the lowest relative humidity are July and August (39%).
Average rainfall in September
Fruitvale, WA
- Average rainfall in September: 0.24"
The wettest month (with the highest rainfall) is January (0.87").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in September
Fruitvale, WA
- Average rainfall days in September: 3.9 days
The month with the highest number of rainy days is March (10.8 days).
The month with the least rainy days is August (2 days).
Average snowfall in September
Fruitvale, WA
- Average snowfall in September: 0.04"
The month with the highest snowfall is December (2.76").
The months with the least snowfall are April, May, June, July, August and October (0").
Average snowfall days in September
Fruitvale, WA
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is December (5.4 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in September /
Average sunshine in September
Fruitvale, WA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 11h and 1min
The months with the most sunshine are July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in September
Fruitvale, WA
- Average sunshine days in September: 23.8 days
The month with the most sunshine days is July (27.5 days).
The month with the least sunshine days is February (15.8 days).
Average UV index in September
Fruitvale, WA
- Average UV index in September: 4
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Fruitvale, WA
- Average cloud cover in September: 14
The month with the most cloud cover is January (Cloud cover 40).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in September
Fruitvale, WA
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Fruitvale, Washington, USA
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