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
On the advent of September, South Fork's average high-temperature exhibits a minor adjustment to a refreshing 63.7°F (17.6°C) from August's 68.9°F (20.5°C). South Fork's nighttime temperature in September demonstrates a noticeable plunge to an icy 39.4°F (4.1°C).Humidity
In South Fork, the average relative humidity in September is 57%.Rainfall
In South Fork, in September, it is raining for 14 days, with typically 1.61" (41mm) of accumulated precipitation. In South Fork, during the entire year, the rain falls for 116.8 days and collects up to 17.01" (432mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 0.5 snowfall days, it receives 0.63" (16mm) of snow. In South Fork, during the entire year, snow falls for 78.8 days and aggregates up to 51.85" (1317mm) of snow.Daylight
In September, the average length of the day is 12h and 25min.On the first day of the month, sunrise is at 6:37 am and sunset at 7:35 pm. On the last day of September, sunrise is at 7:01 am and sunset at 6:50 pm MDT.
Sunshine
The average sunshine in September is 10.9h.UV index
In South Fork, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 3 during September translates into these guidelines:
Undertake precautions - It is suggested to shield oneself from sunburn. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How many days does it rain in September?
When does it start snowing?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does South Fork have in September?
What is the UV index reading in September?
Average temperature in September
South Fork, CO
- Average high temperature in September: 63.7°F
The warmest month (with the highest average high temperature) is July (71.2°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in September: 39.4°F
The month with the highest average low temperature is July (45.5°F).
The coldest month (with the lowest average low temperature) is January (7.9°F).
Average pressure in September
South Fork, CO
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is April (29.93"Hg).
Average wind speed in September
South Fork, CO
- Average wind speed in September: 4.9mph
The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest months (with the lowest average wind speed) are July and August (4.3mph).
Average humidity in September
South Fork, CO
- Average humidity in September: 57%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is June (42%).
Average rainfall in September
South Fork, CO
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is July (3.86").
The driest month (with the least rainfall) is November (0.63").
Average rainfall days in September
South Fork, CO
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is July (23.2 days).
The month with the least rainy days is November (3 days).
Average snowfall in September
South Fork, CO
- Average snowfall in September: 0.63"
The month with the highest snowfall is March (8.78").
The months with the least snowfall are July and August (0").
Average snowfall days in September
South Fork, CO
- Average snowfall days in September: 0.5 days
The month with the highest number of snowfall days is February (12.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
South Fork, CO
- Average daylight in September: 12h and 2min
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: 10h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).
Average sunshine days in September
South Fork, CO
- Average sunshine days in September: 12 days
The month with the most sunshine days is November (23.2 days).
The month with the least sunshine days is July (5.6 days).
Average UV index in September
South Fork, CO
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in September
South Fork, CO
- Average cloud cover in September: 19
The month with the most cloud cover is February (Cloud cover 37).
The month with the least cloud cover is June (Cloud cover 15).
Average visibility in September
South Fork, CO
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
South Fork, Colorado, USA
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