September weather forecastAntonito, CO
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Antonito, Colorado, with temperature in the range of an average high of 72.3°F (22.4°C) and an average low of 45.5°F (7.5°C).Temperature
Start of September brings a slight shift in the average high-temperature, dipping a bit from August's warm 78.6°F (25.9°C) to an agreeable 72.3°F (22.4°C). During September, Antonito's temperature records a considerable difference from its daily highs to an average low of 45.5°F (7.5°C).Humidity
In September, the average relative humidity is 49%.Rainfall
In Antonito, in September, during 6.9 rainfall days, 0.51" (13mm) of precipitation is typically accumulated. In Antonito, during the entire year, the rain falls for 79.9 days and collects up to 7.13" (181mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow. In Antonito, during the entire year, snow falls for 44.9 days and aggregates up to 22.6" (574mm) of snow.Daylight
In September, the average length of the day is 12h and 24min.On the first day of September, sunrise is at 6:35 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:48 pm MDT.
Sunshine
In Antonito, the average sunshine in September is 11.3h.UV index
The average daily maximum UV index in September in Antonito is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Put precautions into practice - Protective measures against sun-induced damage are advised. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Antonito, CO
- Average high temperature in September: 72.3°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (31.3°F).
- Average low temperature in September: 45.5°F
The month with the highest average low temperature is July (50.5°F).
The coldest month (with the lowest average low temperature) is January (12°F).
Average pressure in September
Antonito, CO
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is April (29.91"Hg).
Average wind speed in September
Antonito, CO
- Average wind speed in September: 4.9mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Antonito, CO
- Average humidity in September: 49%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is June (37%).
Average rainfall in September
Antonito, CO
- Average rainfall in September: 0.51"
The wettest month (with the highest rainfall) is May (1.02").
The driest months (with the least rainfall) are November and December (0.39").
Average rainfall days in September
Antonito, CO
- Average rainfall days in September: 6.9 days
The month with the highest number of rainy days is July (10.1 days).
The month with the least rainy days is November (3 days).
Average snowfall in September
Antonito, CO
- Average snowfall in September: 0.04"
The month with the highest snowfall is March (3.98").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Antonito, CO
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is February (9.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Antonito, 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 42min).
- Average sunshine in September: 11h and 18min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 48min).
Average sunshine days in September
Antonito, CO
- Average sunshine days in September: 18.4 days
The month with the most sunshine days is November (23.5 days).
The month with the least sunshine days is April (16.9 days).
Average UV index in September
Antonito, CO
- Average UV index in September: 4
The months with the highest UV index are June, July 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
Antonito, CO
- Average cloud cover in September: 12
The month with the most cloud cover is January (Cloud cover 25).
The months with the least cloud cover are June, September, October and November (Cloud cover 12).
Average visibility in September
Antonito, 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).
