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 onset of September brings a small shift in high-temperatures, falling from a moderately hot 75.7°F (24.3°C) in August to a pleasant 69.6°F (20.9°C). September nights in Elma are characterized by a notable drop from daytime highs, with an average low-temperature of 46.8°F (8.2°C).Humidity
In Elma, the average relative humidity in September is 81%.Rainfall
In Elma, Washington, in September, it is raining for 11.1 days, with typically 1.26" (32mm) of accumulated precipitation. Throughout the year, in Elma, there are 163.5 rainfall days, and 26.65" (677mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall in Elma, Washington.Daylight
The average length of the day in September in Elma is 12h and 32min.On the first day of September, sunrise is at 6:34 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 6:54 pm PDT.
Sunshine
In September, the average sunshine is 7.8h.UV index
The average daily maximum UV index in September in Elma, Washington, is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Guard yourself - Avoiding sunburn is suggested. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Frequently asked questions
What is the average September temperature in Elma?
What is the average humidity in September in Elma?
How much does it rain in Elma in September?
When it does not snow in Elma?
How many hours of daylight does Elma have in September?
What time are sunrise and sunset in September in Elma?
How many hours of sunshine does Elma have in September?
How high is the UV index in September in Elma?
Average temperature in September
Elma, WA
- Average high temperature in September: 69.6°F
The warmest month (with the highest average high temperature) is August (75.7°F).
The month with the lowest average high temperature is December (43°F).
- Average low temperature in September: 46.8°F
The month with the highest average low temperature is August (49.5°F).
The coldest months (with the lowest average low temperature) are February and December (33.6°F).
Average pressure in September
Elma, WA
- Average pressure in September: 30.02"Hg
The months with the highest atmospheric pressure are January and July (30.07"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).
Average wind speed in September
Elma, WA
- Average wind speed in September: 3.7mph
The windiest months (with the highest average wind speed) are January and June (4.9mph).
The calmest month (with the lowest average wind speed) is September (3.7mph).
Average humidity in September
Elma, WA
- Average humidity in September: 81%
The month with the highest relative humidity is December (91%).
The month with the lowest relative humidity is July (75%).
Average rainfall in September
Elma, WA
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is January (4.37").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in September
Elma, WA
- Average rainfall days in September: 11.1 days
The month with the highest number of rainy days is March (19.4 days).
The month with the least rainy days is August (5.8 days).
Average snowfall in September
Elma, WA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.87").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Elma, WA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.3 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
Elma, 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: 7h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 0min).
Average sunshine days in September
Elma, WA
- Average sunshine days in September: 17 days
The month with the most sunshine days is August (22.2 days).
The month with the least sunshine days is March (9.3 days).
Average UV index in September
Elma, 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
Elma, WA
- Average cloud cover in September: 52
The months with the most cloud cover are January and December (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 43).
Average visibility in September
Elma, WA
- Average visibility in September: 4mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September and October (4mi).
The months with the lowest visibility are November and December (3mi).
Elma, Washington, USA
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