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
As August shifts into September in Silverton, a minor alteration in temperatures is observed, with average highs reducing from a comfortable 65.1°F (18.4°C) to a still refreshing 59.4°F (15.2°C). Silverton reports a steady low-temperature average of 37.2°F (2.9°C) throughout September, revealing a large deviation from the daytime high.Humidity
In September, the average relative humidity in Silverton is 61%.Rainfall
In Silverton, during September, the rain falls for 12.6 days and regularly aggregates up to 1.69" (43mm) of precipitation. In Silverton, during the entire year, the rain falls for 107.5 days and collects up to 26.34" (669mm) of precipitation.Snowfall
January through December are months with snowfall in Silverton. In Silverton, Colorado, 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 September, the average length of the day in Silverton is 12h and 25min.On the first day of the month, sunrise is at 6:41 am and sunset at 7:39 pm. On the last day of September, sunrise is at 7:06 am and sunset at 6:54 pm MDT.
Sunshine
The average sunshine in September in Silverton is 10.7h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 3 during September translates into the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Frequently asked questions
What is the average September temperature in Silverton?
What is the average humidity in September in Silverton?
How much does it rain in Silverton in September?
How many days does it snow in September in Silverton?
What is the average length of the day in September in Silverton?
What time are sunrise and sunset in September in Silverton?
How long on average sun shines in September in Silverton?
What is the UV index intensity in September in Silverton?
Average temperature in September
Silverton, 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
Silverton, 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
Silverton, 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
Silverton, 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
Silverton, 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
Silverton, 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
Silverton, 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
Silverton, 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
Silverton, CO
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
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
Silverton, 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
Silverton, 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
Silverton, 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
Silverton, 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).
Silverton, Colorado, USA
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