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 commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from a warm 81.1°F (27.3°C) in August to a still moderately hot 73.6°F (23.1°C). Despite a significant disparity with daytime temperatures, an average low-temperature of 47.8°F (8.8°C) is recorded during September.Humidity
The average relative humidity in September in Delta is 46%.Rainfall
In Delta, in September, it is raining for 10.6 days, with typically 1.42" (36mm) of accumulated precipitation. Throughout the year, in Delta, there are 120.8 rainfall days, and 14.06" (357mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Delta.Daylight
In September, the average length of the day is 12h and 25min.On the first day of September, sunrise is at 6:42 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:56 pm MDT.
Sunshine
In Delta, the average sunshine in September is 11h.UV index
In September, the average daily maximum UV index in Delta is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. The Sun's radiation is especially intense around midday; try to stay in shade during this period. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Frequently asked questions
What are September temperatures in Delta?
What is the average humidity in September in Delta?
How many days does it rain in September in Delta?
When it does not snow in Delta?
Does it snow in Delta in September?
What is the average length of the day in September in Delta?
What time are sunrise and sunset in September in Delta?
How long on average sun shines in September in Delta?
What is the UV index intensity in September in Delta?
Average temperature in September
Delta, CO
- Average high temperature in September: 73.6°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (33.1°F).
- Average low temperature in September: 47.8°F
The month with the highest average low temperature is July (55.2°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).
Average pressure in September
Delta, CO
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.26"Hg).
The month with the lowest atmospheric pressure is May (29.92"Hg).
Average wind speed in September
Delta, CO
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is June (7mph).
The calmest month (with the lowest average wind speed) is January (3.9mph).
Average humidity in September
Delta, CO
- Average humidity in September: 46%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is June (34%).
Average rainfall in September
Delta, CO
- Average rainfall in September: 1.42"
The wettest month (with the highest rainfall) is August (1.54").
The driest month (with the least rainfall) is June (0.71").
Average rainfall days in September
Delta, CO
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is April (13.8 days).
The month with the least rainy days is June (6.8 days).
Average snowfall in September
Delta, CO
- Average snowfall in September: 0"
The month with the highest snowfall is December (5.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Delta, CO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Delta, CO
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 11h and 0min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).
Average sunshine days in September
Delta, CO
- Average sunshine days in September: 15.5 days
The months with the most sunshine days are June and November (20.4 days).
The month with the least sunshine days is August (13.3 days).
Average UV index in September
Delta, 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, November and December (UV index 2).
Average cloud cover in September
Delta, CO
- Average cloud cover in September: 13
The months with the most cloud cover are January and February (Cloud cover 33).
The month with the least cloud cover is June (Cloud cover 11).
Average visibility in September
Delta, 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).
Delta, Colorado, USA
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