September weather forecastTwo Buttes, CO
September
Weather in September
The first month of the autumn, September, is still a warm month in Two Buttes, Colorado, with temperature in the range of an average high of 81.5°F (27.5°C) and an average low of 61.2°F (16.2°C).Temperature
As September arrives, Two Buttes's weather displays a minor decrease in high-temperatures, transitioning from August's hot 88.2°F (31.2°C) to a warm 81.5°F (27.5°C). During September nights, Two Buttes records an average temperature of 61.2°F (16.2°C).Heat index
In September, the average heat index is calculated to be 82.4°F (28°C). Continuing activity during long-lasting exposure might induce tiredness and result in heat cramps.For clarity, heat index numbers account for light winds and areas under shade. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Humidity
The average relative humidity in September in Two Buttes is 48%.Rainfall
In September, in Two Buttes, Colorado, the rain falls for 9.8 days. Throughout September, 0.94" (24mm) of precipitation is accumulated. Throughout the year, in Two Buttes, there are 94.4 rainfall days, and 12.44" (316mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Two Buttes.Daylight
In Two Buttes, Colorado, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:20 am and sunset at 7:18 pm. On the last day of September, in Two Buttes, sunrise is at 6:44 am and sunset at 6:33 pm MDT.
Sunshine
In September, the average sunshine in Two Buttes is 10.4h.UV index
In Two Buttes, Colorado, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Two Buttes, CO
- Average high temperature in September: 81.5°F
The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is December (45.1°F).
- Average low temperature in September: 61.2°F
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is December (27.5°F).
Average pressure in September
Two Buttes, CO
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.8"Hg).
Average wind speed in September
Two Buttes, CO
- Average wind speed in September: 12.1mph
The windiest month (with the highest average wind speed) is April (13.4mph).
The calmest month (with the lowest average wind speed) is January (10.4mph).
Average humidity in September
Two Buttes, CO
- Average humidity in September: 48%
The months with the highest relative humidity are January and December (56%).
The month with the lowest relative humidity is June (41%).
Average rainfall in September
Two Buttes, CO
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is July (2.32").
The driest months (with the least rainfall) are January and November (0.35").
Average rainfall days in September
Two Buttes, CO
- Average rainfall days in September: 9.8 days
The month with the highest number of rainy days is July (15.5 days).
The month with the least rainy days is November (2.2 days).
Average snowfall in September
Two Buttes, CO
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Two Buttes, CO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Two Buttes, CO
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 10h and 24min
The months with the most sunshine are June, July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).
Average sunshine days in September
Two Buttes, CO
- Average sunshine days in September: 17.1 days
The month with the most sunshine days is November (25 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in September
Two Buttes, CO
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, November and December (UV index 2).
Average cloud cover in September
Two Buttes, CO
- Average cloud cover in September: 16
The months with the most cloud cover are February and April (Cloud cover 24).
The month with the least cloud cover is June (Cloud cover 14).
Average visibility in September
Two Buttes, 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).





