September weather forecastHooper, CO
September
Weather in September
September, the first month of the autumn in Hooper, is also an agreeable month, with an average temperature fluctuating between 43.7°F (6.5°C) and 70.7°F (21.5°C).Temperature
September marks a gentle change in average high-temperature, declining from August's warm 77.2°F (25.1°C) to a pleasant 70.7°F (21.5°C). Despite the significant gap from daytime peaks, Hooper experiences an average low-temperature of 43.7°F (6.5°C) in September.Humidity
In Hooper, the average relative humidity in September is 50%.Rainfall
In September, the rain falls for 10.6 days. Throughout September, 0.75" (19mm) of precipitation is accumulated. In Hooper, during the entire year, the rain falls for 102.4 days and collects up to 9.13" (232mm) of precipitation.Snowfall
In Hooper, snow does not fall in June through September.Daylight
The average length of the day in September in Hooper, Colorado, is 12h and 25min.On the first day of the month, sunrise is at 6:34 am and sunset at 7:32 pm. On the last day of September, in Hooper, sunrise is at 6:58 am and sunset at 6:47 pm MDT.
Sunshine
The average sunshine in September in Hooper is 11.3h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 4 during September leads to these instructions:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. To guard against the harmful effects of the Sun, minimize exposure during midday. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hooper, CO
- Average high temperature in September: 70.7°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (30.4°F).
- Average low temperature in September: 43.7°F
The month with the highest average low temperature is July (48.7°F).
The coldest month (with the lowest average low temperature) is January (10.4°F).
Average pressure in September
Hooper, 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 (29.92"Hg).
Average wind speed in September
Hooper, CO
- Average wind speed in September: 4.5mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Hooper, CO
- Average humidity in September: 50%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is June (38%).
Average rainfall in September
Hooper, CO
- Average rainfall in September: 0.75"
The wettest month (with the highest rainfall) is July (1.85").
The driest month (with the least rainfall) is November (0.31").
Average rainfall days in September
Hooper, CO
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is November (2.2 days).
Average snowfall in September
Hooper, CO
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.33").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Hooper, CO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (9.8 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Hooper, 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: 11h and 18min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 7h and 0min).
Average sunshine days in September
Hooper, CO
- Average sunshine days in September: 14 days
The month with the most sunshine days is November (23.7 days).
The month with the least sunshine days is July (7.3 days).
Average UV index in September
Hooper, 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
Hooper, CO
- Average cloud cover in September: 13
The months with the most cloud cover are January and February (Cloud cover 24).
The months with the least cloud cover are June, October and November (Cloud cover 12).
Average visibility in September
Hooper, 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).
