September weather forecastHesperus, CO
September
Weather in September
September, the first month of the autumn in Hesperus, is also an enjoyable month, with an average temperature fluctuating between 45.1°F (7.3°C) and 67.5°F (19.7°C).Temperature
With the arrival of September, Hesperus notices a mild change in the average high-temperature, sliding from August's moderately hot 73.9°F (23.3°C) to a comfortable 67.5°F (19.7°C). During September, Hesperus detects a significant contrast from its daytime temperatures, with nights averaging at a chilly 45.1°F (7.3°C).Humidity
In Hesperus, the average relative humidity in September is 53%.Rainfall
In Hesperus, in September, it is raining for 14.4 days, with typically 2.01" (51mm) of accumulated precipitation. Throughout the year, there are 113.4 rainfall days, and 20.63" (524mm) of precipitation is accumulated.Snowfall
In Hesperus, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 25min.On the first day of September, sunrise is at 6:43 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:56 pm MDT.
Sunshine
In September, the average sunshine is 10.9h.UV index
In Hesperus, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: An average maximum UV index of 4 in September leads to these recommendations:
Ensure safety - Sun damage prevention is strongly urged. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hesperus, CO
- Average high temperature in September: 67.5°F
The warmest month (with the highest average high temperature) is July (76.3°F).
The month with the lowest average high temperature is January (31.3°F).
- Average low temperature in September: 45.1°F
The month with the highest average low temperature is July (51.6°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in September
Hesperus, CO
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.22"Hg).
The months with the lowest atmospheric pressure are April, May and June (29.91"Hg).
Average wind speed in September
Hesperus, CO
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is December (4.9mph).
Average humidity in September
Hesperus, CO
- Average humidity in September: 53%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is June (37%).
Average rainfall in September
Hesperus, CO
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is July (3.07").
The driest month (with the least rainfall) is June (0.94").
Average rainfall days in September
Hesperus, CO
- Average rainfall days in September: 14.4 days
The month with the highest number of rainy days is July (21.5 days).
The month with the least rainy days is November (3.4 days).
Average snowfall in September
Hesperus, CO
- Average snowfall in September: 0"
The month with the highest snowfall is February (14.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Hesperus, CO
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (12.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Hesperus, 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 54min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).
Average sunshine days in September
Hesperus, CO
- Average sunshine days in September: 11.9 days
The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (6.9 days).
Average UV index in September
Hesperus, 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, March, October, November and December (UV index 2).
Average cloud cover in September
Hesperus, CO
- Average cloud cover in September: 15
The month with the most cloud cover is February (Cloud cover 33).
The month with the least cloud cover is June (Cloud cover 12).
Average visibility in September
Hesperus, CO
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
