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 aligns with a minor decrease in average high-temperatures, from August's warm 74.3°F (23.5°C) to a pleasant 68.5°F (20.3°C). A striking departure from daytime highs to an average low-temperature of 45°F (7.2°C) is witnessed during September.Humidity
In Rye, Colorado, the average relative humidity in September is 53%.Rainfall
In Rye, in September, during 12.5 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. Throughout the year, there are 125.5 rainfall days, and 19.84" (504mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 0.3 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 73.4 snowfall days, and 53.07" (1348mm) of snow is accumulated.Daylight
In Rye, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:30 am and sunset at 7:28 pm. On the last day of September, in Rye, sunrise is at 6:55 am and sunset at 6:43 pm MDT.
Sunshine
The average sunshine in September is 11.1h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 4 during September translates into the following directions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
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?
When does it start snowing?
What is the average length of the day in September in Rye?
When are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Rye, CO
- Average high temperature in September: 68.5°F
The warmest month (with the highest average high temperature) is July (76.1°F).
The month with the lowest average high temperature is January (32.4°F).
- Average low temperature in September: 45°F
The month with the highest average low temperature is July (51.4°F).
The coldest month (with the lowest average low temperature) is January (14.7°F).
Average pressure in September
Rye, CO
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is April (29.9"Hg).
Average wind speed in September
Rye, CO
- Average wind speed in September: 6mph
The windiest months (with the highest average wind speed) are February, March and April (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in September
Rye, CO
- Average humidity in September: 53%
The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is June (43%).
Average rainfall in September
Rye, CO
- Average rainfall in September: 1.38"
The wettest month (with the highest rainfall) is July (3.7").
The driest month (with the least rainfall) is November (0.63").
Average rainfall days in September
Rye, CO
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is November (3.3 days).
Average snowfall in September
Rye, CO
- Average snowfall in September: 0.04"
The month with the highest snowfall is March (9.37").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Rye, CO
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is February (12.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Rye, 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: 11h and 1min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).
Average sunshine days in September
Rye, CO
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is November (22 days).
The month with the least sunshine days is July (6 days).
Average UV index in September
Rye, CO
- Average UV index in September: 4
The months with the highest UV index are June and August (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in September
Rye, CO
- Average cloud cover in September: 16
The month with the most cloud cover is February (Cloud cover 29).
The month with the least cloud cover is June (Cloud cover 14).
Average visibility in September
Rye, 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).
Rye, Colorado, USA
Weather forecast for your location
2. Allow the app to use your location