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 into September involves a small decrease in the average high-temperature, dipping slightly from a pleasant 68.7°F (20.4°C) in August to a refreshing 62.8°F (17.1°C). September is characterized by a distinct thermal shift, with nighttime lows averaging at a cold 37.9°F (3.3°C).Humidity
In Empire, the average relative humidity in September is 54%.Rainfall
In Empire, in September, it is raining for 13 days, with typically 1.38" (35mm) of accumulated precipitation. Throughout the year, there are 138.3 rainfall days, and 23.07" (586mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through December. In Empire, in September, during 3.5 snowfall days, 1.26" (32mm) of snow is typically accumulated. Throughout the year, there are 127.6 snowfall days, and 93.94" (2386mm) of snow is accumulated.Daylight
In September, the average length of the day is 12h and 26min.On the first day of the month, sunrise is at 6:31 am and sunset at 7:33 pm. On the last day of September, sunrise is at 6:58 am and sunset at 6:46 pm MDT.
Sunshine
In September, the average sunshine is 11h.UV index
In Empire, Colorado, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: A daily high UV index of 3 in September leads to these guidelines:
Put precautions into practice - Guidance to elude sunburn is provided. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Empire?
What is the average humidity in September?
How many days does it rain in September?
How much does it snow in September?
How many hours of daylight does Empire have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Empire, CO
- Average high temperature in September: 62.8°F
The warmest month (with the highest average high temperature) is July (70°F).
The month with the lowest average high temperature is December (26.8°F).
- Average low temperature in September: 37.9°F
The month with the highest average low temperature is July (44.2°F).
The coldest months (with the lowest average low temperature) are January and December (8.1°F).
Average pressure in September
Empire, CO
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are April and May (29.93"Hg).
Average wind speed in September
Empire, CO
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in September
Empire, CO
- Average humidity in September: 54%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is June (51%).
Average rainfall in September
Empire, CO
- Average rainfall in September: 1.38"
The wettest month (with the highest rainfall) is May (3.7").
The driest month (with the least rainfall) is December (0.79").
Average rainfall days in September
Empire, CO
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is July (23.9 days).
The month with the least rainy days is November (3.4 days).
Average snowfall in September
Empire, CO
- Average snowfall in September: 1.26"
The month with the highest snowfall is May (17.48").
The month with the least snowfall is July (0.12").
Average snowfall days in September
Empire, CO
- Average snowfall days in September: 3.5 days
The month with the highest number of snowfall days is April (18.5 days).
The months with the least snowfall days are July and August (0.5 days).
Average daylight in September /
Average sunshine in September
Empire, CO
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 11h and 0min
The month with the most sunshine is August (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).
Average sunshine days in September
Empire, CO
- Average sunshine days in September: 13.4 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (4.1 days).
Average UV index in September
Empire, CO
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 4).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Empire, CO
- Average cloud cover in September: 18
The month with the most cloud cover is February (Cloud cover 38).
The months with the least cloud cover are June and September (Cloud cover 18).
Average visibility in September
Empire, 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).
Empire, Colorado, USA
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