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
The transition to September results in a modest reduction in average high-temperature, moving from a moderately hot 78.6°F (25.9°C) in August to an agreeable 72.1°F (22.3°C). Blanca documents a substantial deviation from daytime highs with a consistent low-temperature of 45.3°F (7.4°C) during September nights.Humidity
The average relative humidity in September is 48%.Rainfall
In Blanca, during September, the rain falls for 6.8 days and regularly aggregates up to 0.91" (23mm) of precipitation. In Blanca, during the entire year, the rain falls for 79.8 days and collects up to 7.52" (191mm) 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 0.5 snowfall days, it receives 3.46" (88mm) of snow. In Blanca, during the entire year, snow falls for 45.2 days and aggregates up to 26.02" (661mm) of snow.Daylight
In Blanca, Colorado, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:30 pm. On the last day of September, sunrise is at 6:57 am and sunset at 6:46 pm MDT.
Sunshine
In Blanca, the average sunshine in September is 11.1h.UV index
In Blanca, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Blanca in September?
What is the average humidity in September?
How many days does it rain in September?
When does it start to snow?
How many hours of daylight does Blanca have in September?
When are sunrise and sunset in September?
How long on average sun shines in September in Blanca?
What is the UV index reading in September?
Average temperature in September
Blanca, CO
- Average high temperature in September: 72.1°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: 45.3°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
Blanca, 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
Blanca, CO
- Average wind speed in September: 4.8mph
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
Blanca, CO
- Average humidity in September: 48%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is June (37%).
Average rainfall in September
Blanca, CO
- Average rainfall in September: 0.91"
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
Blanca, CO
- Average rainfall days in September: 6.8 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
Blanca, CO
- Average snowfall in September: 3.46"
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
Blanca, CO
- Average snowfall days in September: 0.5 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
Blanca, CO
- Average daylight in September: 12h and 2min
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: 11h and 1min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 6h and 48min).
Average sunshine days in September
Blanca, CO
- Average sunshine days in September: 18.7 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
Blanca, 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
Blanca, 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
Blanca, 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).
Blanca, Colorado, USA
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