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
September marks a gentle change in average high-temperature, declining from August's tropical 90°F (32.2°C) to a warm 82.9°F (28.3°C). Arlington anticipates a considerable daily temperature fluctuation in September, with low temperatures averaging an enjoyable 60.8°F (16°C).Heat index
The average heat index in September is appraised at 82.4°F (28°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.Research indicates the heat index considers values in shaded locales and with light winds. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Humidity
In September, the average relative humidity in Arlington is 42%.Rainfall
In Arlington, during September, the rain falls for 6.4 days and regularly aggregates up to 0.75" (19mm) of precipitation. In Arlington, during the entire year, the rain falls for 83.3 days and collects up to 10.16" (258mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Arlington, the average length of the day in September is 12h and 25min.On the first day of September in Arlington, sunrise is at 6:23 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:37 pm MDT.
Sunshine
In Arlington, the average sunshine in September is 10.7h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Arlington in September?
What is the average humidity in September in Arlington?
How many days does it rain in September in Arlington?
When it does not snow in Arlington?
Does it snow in Arlington in September?
What is the average length of the day in September in Arlington?
When are sunrise and sunset in September in Arlington?
How long on average sun shines in September in Arlington?
What is the UV index intensity in September in Arlington?
Average temperature in September
Arlington, CO
- Average high temperature in September: 82.9°F
The warmest month (with the highest average high temperature) is July (92.5°F).
The month with the lowest average high temperature is December (43.7°F).
- Average low temperature in September: 60.8°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is December (26.2°F).
Average pressure in September
Arlington, CO
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in September
Arlington, CO
- Average wind speed in September: 9.8mph
The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest months (with the lowest average wind speed) are January and December (7.8mph).
Average humidity in September
Arlington, CO
- Average humidity in September: 42%
The month with the highest relative humidity is January (58%).
The month with the lowest relative humidity is June (37%).
Average rainfall in September
Arlington, CO
- Average rainfall in September: 0.75"
The wettest month (with the highest rainfall) is July (1.77").
The driest month (with the least rainfall) is November (0.31").
Average rainfall days in September
Arlington, CO
- Average rainfall days in September: 6.4 days
The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is January (2.4 days).
Average snowfall in September
Arlington, CO
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.87").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Arlington, CO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Arlington, 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: 10h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).
Average sunshine days in September
Arlington, CO
- Average sunshine days in September: 20.7 days
The month with the most sunshine days is December (24.9 days).
The month with the least sunshine days is July (14.9 days).
Average UV index in September
Arlington, CO
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 2).
Average cloud cover in September
Arlington, CO
- Average cloud cover in September: 14
The months with the most cloud cover are February and April (Cloud cover 25).
The month with the least cloud cover is September (Cloud cover 14).
Average visibility in September
Arlington, CO
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Arlington, Colorado, USA
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