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 start of September signals a gentle decrease in the average high-temperature, transitioning from a warm 74.8°F (23.8°C) in August to a pleasant 68.5°F (20.3°C). Coaldale measures a considerable dip from daytime highs with an average low-temperature of 41.2°F (5.1°C) during September.Humidity
The average relative humidity in September is 51%.Rainfall
In Coaldale, during September, the rain falls for 6 days and regularly aggregates up to 0.39" (10mm) of precipitation. Throughout the year, there are 58.1 rainfall days, and 5.83" (148mm) of precipitation is accumulated.Snowfall
July through September are months without snowfall.Daylight
The average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:33 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:46 pm MDT.
Sunshine
The average sunshine in September is 10.9h.UV index
In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high daily UV index of 3 during September translates into the following directions:
Undertake protective steps - Recommendations to avoid sunburn are issued. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Coaldale have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Coaldale have in September?
What is the UV index intensity in September?
Average temperature in September
Coaldale, CO
- Average high temperature in September: 68.5°F
The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in September: 41.2°F
The month with the highest average low temperature is July (47.5°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).
Average pressure in September
Coaldale, 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 (29.93"Hg).
Average wind speed in September
Coaldale, CO
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in September
Coaldale, CO
- Average humidity in September: 51%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is June (41%).
Average rainfall in September
Coaldale, CO
- Average rainfall in September: 0.39"
The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is January (0.2").
Average rainfall days in September
Coaldale, CO
- Average rainfall days in September: 6 days
The month with the highest number of rainy days is July (12.9 days).
The month with the least rainy days is November (1.2 days).
Average snowfall in September
Coaldale, CO
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.43").
The months with the least snowfall are July, August and September (0").
Average snowfall days in September
Coaldale, CO
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is February (7.6 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Coaldale, 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 5min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).
Average sunshine days in September
Coaldale, CO
- Average sunshine days in September: 22.1 days
The month with the most sunshine days is November (25.5 days).
The month with the least sunshine days is July (15.6 days).
Average UV index in September
Coaldale, CO
- Average UV index in September: 3
The months with the highest UV index are June and July (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
Coaldale, CO
- Average cloud cover in September: 18
The month with the most cloud cover is February (Cloud cover 32).
The month with the least cloud cover is June (Cloud cover 15).
Average visibility in September
Coaldale, 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).
Coaldale, Colorado, USA
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