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 September, the average high-temperature marginally drops from 85.5°F (29.7°C) in August to a still warm 78.1°F (25.6°C). From the heights of the September heat, Byers records a mean nighttime low of 54.5°F (12.5°C).Humidity
The months with the lowest humidity are August and September, with an average relative humidity of 44%.Rainfall
In September, in Byers, Colorado, the rain falls for 11.3 days. Throughout September, 1.18" (30mm) of precipitation is accumulated. In Byers, Colorado, during the entire year, the rain falls for 105.6 days and collects up to 15" (381mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows in Byers. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, in Byers, Colorado, there are 32.1 snowfall days, and 19.84" (504mm) of snow is accumulated.Daylight
In September, the average length of the day in Byers is 12h and 26min.On the first day of September in Byers, sunrise is at 6:25 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:40 pm MDT.
Sunshine
In September, the average sunshine in Byers is 10.6h.UV index
In September, the average daily maximum UV index in Byers is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: An average UV index of 5 in September transforms into this advice:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Byers in September?
What are the least humid months in Byers?
What is the average humidity in September in Byers?
How many days does it rain in September in Byers?
When does it start snowing in Byers?
How many hours of daylight does Byers have in September?
When are sunrise and sunset in September in Byers?
How many hours of sunshine does Byers have in September?
What is the UV index reading in September in Byers?
Average temperature in September
Byers, CO
- Average high temperature in September: 78.1°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is December (39.9°F).
- Average low temperature in September: 54.5°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is December (21.2°F).
Average pressure in September
Byers, CO
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Byers, CO
- Average wind speed in September: 7.5mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is December (7.3mph).
Average humidity in September
Byers, CO
- Average humidity in September: 44%
The months with the highest relative humidity are January and February (64%).
The months with the lowest relative humidity are August and September (44%).
Average rainfall in September
Byers, CO
- Average rainfall in September: 1.18"
The wettest month (with the highest rainfall) is May (2.99").
The driest month (with the least rainfall) is December (0.24").
Average rainfall days in September
Byers, CO
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is December (1.1 days).
Average snowfall in September
Byers, CO
- Average snowfall in September: 0.04"
The month with the highest snowfall is October (3.58").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Byers, CO
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (5.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Byers, CO
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 10h and 4min
The months with the most sunshine are June and July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).
Average sunshine days in September
Byers, CO
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is December (26.4 days).
The month with the least sunshine days is July (7.8 days).
Average UV index in September
Byers, CO
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Byers, CO
- Average cloud cover in September: 18
The month with the most cloud cover is April (Cloud cover 30).
The months with the least cloud cover are June, August and September (Cloud cover 18).
Average visibility in September
Byers, 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).
Byers, Colorado, USA
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