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
In Littlerock, the average high-temperature in September gently drops from a warm 78.6°F (25.9°C) in August to a pleasant 70.5°F (21.4°C). Throughout September, Littlerock registers a distinct decrease from daytime highs, reaching an average low of 47.7°F (8.7°C).Humidity
In September, the average relative humidity in Littlerock is 78%.Rainfall
In September, the rain falls for 11.7 days. Throughout September, 1.81" (46mm) of precipitation is accumulated. In Littlerock, during the entire year, the rain falls for 177.4 days and collects up to 37.05" (941mm) of precipitation.Snowfall
April through October are months without snowfall in Littlerock.Daylight
In September, the average length of the day is 12h and 32min.On the first day of the month, sunrise is at 6:32 am and sunset at 7:50 pm. On the last day of September, in Littlerock, sunrise is at 7:10 am and sunset at 6:52 pm PDT.
Sunshine
In Littlerock, the average sunshine in September is 8.3h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, an average UV index of 4 transforms into the following instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Frequently asked questions
What is the temperature in September in Littlerock?
What is the average humidity in September in Littlerock?
How much does it rain in Littlerock in September?
When it does not snow in Littlerock?
How many hours of daylight does Littlerock have in September?
When is the sunrise / sunset in September in Littlerock?
How many hours of sunshine does Littlerock have in September?
How high is the UV index in September in Littlerock?
Average temperature in September
Littlerock, WA
- Average high temperature in September: 70.5°F
The warmest month (with the highest average high temperature) is August (78.6°F).
The month with the lowest average high temperature is December (43°F).
- Average low temperature in September: 47.7°F
The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is December (33.4°F).
Average pressure in September
Littlerock, WA
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).
Average wind speed in September
Littlerock, WA
- Average wind speed in September: 3.8mph
The windiest months (with the highest average wind speed) are March and November (4.6mph).
The calmest month (with the lowest average wind speed) is September (3.8mph).
Average humidity in September
Littlerock, WA
- Average humidity in September: 78%
The months with the highest relative humidity are January, November and December (89%).
The month with the lowest relative humidity is July (71%).
Average rainfall in September
Littlerock, WA
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is December (5.79").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in September
Littlerock, WA
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is March (20.4 days).
The month with the least rainy days is August (5.5 days).
Average snowfall in September
Littlerock, WA
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.32").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Littlerock, WA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Littlerock, 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: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in September
Littlerock, WA
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is August (22.4 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in September
Littlerock, WA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Littlerock, WA
- Average cloud cover in September: 45
The months with the most cloud cover are January and December (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in September
Littlerock, WA
- Average visibility in September: 4mi
The months with the highest visibility are June, July and August (5mi).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (4mi).
Littlerock, Washington, USA
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