September weather forecastLindon, CO
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Lindon, Colorado, with an average temperature varying between 79°F (26.1°C) and 56.8°F (13.8°C).Temperature
Transitioning from August to September involves a subtle drop in average high-temperatures, descending from a tropical 86.2°F (30.1°C) to a warm 79°F (26.1°C). September nights in Lindon, Colorado, indicate a noticeable temperature drop from the daytime highs, with an average reading lowering to a refreshing 56.8°F (13.8°C).Humidity
August and September, with an average relative humidity of 47%, are the least humid months in Lindon.Rainfall
In September, in Lindon, the rain falls for 9.2 days. Throughout September, 0.71" (18mm) of precipitation is accumulated. In Lindon, during the entire year, the rain falls for 106.1 days and collects up to 13.66" (347mm) of precipitation.Snowfall
In Lindon, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:22 am and sunset at 7:24 pm. On the last day of September, in Lindon, sunrise is at 6:49 am and sunset at 6:37 pm MDT.
Sunshine
The average sunshine in September in Lindon is 10.4h.UV index
In Lindon, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the maximum UV index of 5 translates into these guidelines:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lindon, CO
- Average high temperature in September: 79°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is December (38.5°F).
- Average low temperature in September: 56.8°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is December (23.2°F).
Average pressure in September
Lindon, CO
- Average pressure in September: 29.94"Hg
The months with the highest atmospheric pressure are January and December (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in September
Lindon, CO
- Average wind speed in September: 9.7mph
The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest months (with the lowest average wind speed) are July and August (9.4mph).
Average humidity in September
Lindon, CO
- Average humidity in September: 47%
The months with the highest relative humidity are January and February (64%).
The months with the lowest relative humidity are August and September (47%).
Average rainfall in September
Lindon, CO
- Average rainfall in September: 0.71"
The wettest month (with the highest rainfall) is May (2.44").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in September
Lindon, CO
- Average rainfall days in September: 9.2 days
The month with the highest number of rainy days is July (14.6 days).
The month with the least rainy days is February (3.6 days).
Average snowfall in September
Lindon, CO
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Lindon, CO
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (7.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Lindon, CO
- Average daylight in September: 12h and 24min
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 24min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 24min).
Average sunshine days in September
Lindon, CO
- Average sunshine days in September: 18.8 days
The month with the most sunshine days is November (23.3 days).
The month with the least sunshine days is July (12.4 days).
Average UV index in September
Lindon, 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
Lindon, CO
- Average cloud cover in September: 17
The month with the most cloud cover is February (Cloud cover 31).
The months with the least cloud cover are August and September (Cloud cover 17).
Average visibility in September
Lindon, 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).





