September weather forecastAntero Junction, CO
September
Weather in September
September, the first month of the autumn in Antero Junction, is still a comfortable month, with an average temperature varying between 39.7°F (4.3°C) and 64.2°F (17.9°C).Temperature
Transitioning from August to September involves a subtle drop in average high-temperatures, descending from a pleasant 70.3°F (21.3°C) to a refreshing 64.2°F (17.9°C). Antero Junction observes a dramatic plunge from daytime highs in September, settling at an average low-temperature of 39.7°F (4.3°C).Humidity
In Antero Junction, the average relative humidity in September is 53%.Rainfall
In Antero Junction, in September, it is raining for 11.5 days, with typically 0.94" (24mm) of accumulated precipitation. Throughout the year, there are 112.5 rainfall days, and 14.13" (359mm) 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 1 snowfall days, it receives 0.47" (12mm) of snow. Throughout the year, there are 88 snowfall days, and 51.5" (1308mm) of snow is accumulated.Daylight
In Antero Junction, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:33 pm. On the last day of September, sunrise is at 6:59 am and sunset at 6:47 pm MDT.
Sunshine
In Antero Junction, the average sunshine in September is 11.1h.UV index
In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In September, an average UV index of 3 transforms into the following instructions:
Undertake protective steps - Recommendations to avoid sunburn are issued. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Antero Junction, CO
- Average high temperature in September: 64.2°F
The warmest month (with the highest average high temperature) is July (71.6°F).
The month with the lowest average high temperature is December (28.4°F).
- Average low temperature in September: 39.7°F
The month with the highest average low temperature is July (45.9°F).
The coldest months (with the lowest average low temperature) are January and December (7.2°F).
Average pressure in September
Antero Junction, 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
Antero Junction, CO
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is February (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in September
Antero Junction, CO
- Average humidity in September: 53%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is June (45%).
Average rainfall in September
Antero Junction, CO
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is July (2.64").
The driest months (with the least rainfall) are January and November (0.51").
Average rainfall days in September
Antero Junction, CO
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is November (3.2 days).
Average snowfall in September
Antero Junction, CO
- Average snowfall in September: 0.47"
The month with the highest snowfall is April (8.98").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Antero Junction, CO
- Average snowfall days in September: 1 days
The month with the highest number of snowfall days is April (13.6 days).
The month with the least snowfall days is August (0 days).
Average daylight in September /
Average sunshine in September
Antero Junction, 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 30min).
- Average sunshine in September: 11h and 6min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).
Average sunshine days in September
Antero Junction, CO
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (7 days).
Average UV index in September
Antero Junction, CO
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in September
Antero Junction, CO
- Average cloud cover in September: 17
The month with the most cloud cover is February (Cloud cover 31).
The month with the least cloud cover is June (Cloud cover 16).
Average visibility in September
Antero Junction, 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).
