September weather forecastRustic, CO
September
Weather in September
September, the first month of the autumn in Rustic, is still a refreshing month, with an average temperature varying between 66.6°F (19.2°C) and 43.7°F (6.5°C).Temperature
Rustic observes a small decrease in the average high-temperature with the arrival of September, falling from August's pleasant 73.2°F (22.9°C) to a refreshing 66.6°F (19.2°C). The average low-temperature reading in September for Rustic reflects a significant fall from the daytime highs, stabilizing at a chilly 43.7°F (6.5°C).Humidity
The months with the lowest humidity are June, August and September, with an average relative humidity of 48%.Rainfall
In September, the rain falls for 10.7 days. Throughout September, 1.18" (30mm) of precipitation is accumulated. Throughout the year, there are 122.3 rainfall days, and 18.15" (461mm) of precipitation is accumulated.Snowfall
Months with snowfall in Rustic are January through June, August through December. In September, it is snowing for 1.5 days. Throughout September, 0.75" (19mm) of snow is accumulated. In Rustic, during the entire year, snow falls for 103.4 days and aggregates up to 71.97" (1828mm) of snow.Daylight
The average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 6:30 am and sunset at 7:33 pm. On the last day of September, sunrise is at 6:58 am and sunset at 6:45 pm MDT.
Sunshine
In September, the average sunshine is 10.8h.UV index
In Rustic, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 4 during September translates into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Consider this! The reflection from 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
Average temperature in September
Rustic, CO
- Average high temperature in September: 66.6°F
The warmest month (with the highest average high temperature) is July (74.3°F).
The month with the lowest average high temperature is December (28.6°F).
- Average low temperature in September: 43.7°F
The month with the highest average low temperature is July (51.3°F).
The coldest month (with the lowest average low temperature) is December (13.3°F).
Average pressure in September
Rustic, CO
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Rustic, CO
- Average wind speed in September: 8.2mph
The windiest month (with the highest average wind speed) is January (12.5mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in September
Rustic, CO
- Average humidity in September: 48%
The month with the highest relative humidity is February (75%).
The months with the lowest relative humidity are June, August and September (48%).
Average rainfall in September
Rustic, CO
- Average rainfall in September: 1.18"
The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is January (0.63").
Average rainfall days in September
Rustic, CO
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is November (4.2 days).
Average snowfall in September
Rustic, CO
- Average snowfall in September: 0.75"
The month with the highest snowfall is April (14.88").
The month with the least snowfall is July (0").
Average snowfall days in September
Rustic, CO
- Average snowfall days in September: 1.5 days
The month with the highest number of snowfall days is March (15.8 days).
The month with the least snowfall days is July (0 days).
Average daylight in September /
Average sunshine in September
Rustic, CO
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 10h and 48min
The month with the most sunshine is June (Average sunshine: 11h and 24min).
The month with the least sunshine is February (Average sunshine: 6h and 24min).
Average sunshine days in September
Rustic, CO
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (7.2 days).
Average UV index in September
Rustic, CO
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in September
Rustic, CO
- Average cloud cover in September: 19
The months with the most cloud cover are February, April and May (Cloud cover 34).
The month with the least cloud cover is September (Cloud cover 19).
Average visibility in September
Rustic, CO
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
