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 a moderately hot 74.8°F (23.8°C) in August to an agreeable 68.5°F (20.3°C). In Cotopaxi, the nighttime temperature registers a significant drop from daytime peaks to an average of 41.2°F (5.1°C) in September.Humidity
The average relative humidity in September is 51%.Rainfall
In Cotopaxi, during September, the rain falls for 6 days and regularly aggregates up to 0.39" (10mm) of precipitation. Throughout the year, there are 58.1 rainfall days, and 5.83" (148mm) of precipitation is accumulated.Snowfall
In Cotopaxi, snow does not fall in July through September.Daylight
In Cotopaxi, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:32 am and sunset at 7:32 pm. On the last day of September, sunrise is at 6:58 am and sunset at 6:46 pm MDT.
Sunshine
The average sunshine in September is 10.9h.UV index
In Cotopaxi, Colorado, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: In September, the UV index of 3 transforms into the following advice:
Take precautions - Protection against skin and eye damage is obliged. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Frequently asked questions
What is the temperature in September in Cotopaxi?
What is the average humidity in September in Cotopaxi?
How many days does it rain in September in Cotopaxi?
When it does not snow in Cotopaxi?
Does it snow in Cotopaxi in September?
What is the average length of the day in September in Cotopaxi?
When is the sunrise / sunset in September in Cotopaxi?
How long on average sun shines in September in Cotopaxi?
What is the UV index reading in September in Cotopaxi?
Average temperature in September
Cotopaxi, CO
- Average high temperature in September: 68.5°F
The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in September: 41.2°F
The month with the highest average low temperature is July (47.5°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).
Average pressure in September
Cotopaxi, CO
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is April (29.93"Hg).
Average wind speed in September
Cotopaxi, CO
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in September
Cotopaxi, CO
- Average humidity in September: 51%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is June (41%).
Average rainfall in September
Cotopaxi, CO
- Average rainfall in September: 0.39"
The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is January (0.2").
Average rainfall days in September
Cotopaxi, CO
- Average rainfall days in September: 6 days
The month with the highest number of rainy days is July (12.9 days).
The month with the least rainy days is November (1.2 days).
Average snowfall in September
Cotopaxi, CO
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.43").
The months with the least snowfall are July, August and September (0").
Average snowfall days in September
Cotopaxi, CO
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is February (7.6 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Cotopaxi, 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 30min).
- Average sunshine in September: 10h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).
Average sunshine days in September
Cotopaxi, CO
- Average sunshine days in September: 22.1 days
The month with the most sunshine days is November (25.5 days).
The month with the least sunshine days is July (15.6 days).
Average UV index in September
Cotopaxi, CO
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Cotopaxi, CO
- Average cloud cover in September: 18
The month with the most cloud cover is February (Cloud cover 32).
The month with the least cloud cover is June (Cloud cover 15).
Average visibility in September
Cotopaxi, CO
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Cotopaxi, Colorado, USA
Weather forecast for your location
2. Allow the app to use your location
