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's arrival signals a moderate reduction in the average high-temperature, easing from an enjoyable 65.1°F (18.4°C) in August to a moderate 59.4°F (15.2°C). Despite the high peak temperatures, Placerville witnesses an average nighttime cooling to a wintry 37.2°F (2.9°C) in September.Humidity
In Placerville, Colorado, the average relative humidity in September is 61%.Rainfall
In September, the rain falls for 12.6 days. Throughout September, 1.69" (43mm) of precipitation is accumulated. In Placerville, during the entire year, the rain falls for 107.5 days and collects up to 26.34" (669mm) of precipitation.Snowfall
Months with snowfall are January through December. In Placerville, during September, snow falls for 3 days and regularly aggregates up to 2.2" (56mm) of snow. Throughout the year, there are 117.7 snowfall days, and 123.82" (3145mm) of snow is accumulated.Daylight
In Placerville, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:42 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:56 pm MDT.
Sunshine
In Placerville, the average sunshine in September is 10.7h.UV index
In Placerville, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 3 during September morphs into the following directions:
Act with care - The suggestion to avoid sunburn is emphasized. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How much does it rain in September?
How many days does it snow in September?
How many hours of daylight does Placerville have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Placerville, CO
- Average high temperature in September: 59.4°F
The warmest month (with the highest average high temperature) is July (66.7°F).
The month with the lowest average high temperature is December (25.7°F).
- Average low temperature in September: 37.2°F
The month with the highest average low temperature is July (43.3°F).
The coldest month (with the lowest average low temperature) is January (4.3°F).
Average pressure in September
Placerville, CO
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The months with the lowest atmospheric pressure are April and May (29.92"Hg).
Average wind speed in September
Placerville, CO
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in September
Placerville, CO
- Average humidity in September: 61%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is June (45%).
Average rainfall in September
Placerville, CO
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is July (4.02").
The driest month (with the least rainfall) is June (1.3").
Average rainfall days in September
Placerville, CO
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is July (21.4 days).
The month with the least rainy days is November (3.1 days).
Average snowfall in September
Placerville, CO
- Average snowfall in September: 2.2"
The month with the highest snowfall is March (19.88").
The month with the least snowfall is July (0.12").
Average snowfall days in September
Placerville, CO
- Average snowfall days in September: 3 days
The month with the highest number of snowfall days is February (17.3 days).
The month with the least snowfall days is July (0.3 days).
Average daylight in September /
Average sunshine in September
Placerville, CO
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 10h and 4min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in September
Placerville, CO
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is July (8.1 days).
Average UV index in September
Placerville, CO
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 4).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Placerville, CO
- Average cloud cover in September: 17
The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 14).
Average visibility in September
Placerville, CO
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).
Placerville, Colorado, USA
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