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 arrival of September corresponds with a light shift in temperature, down from a warm 81.5°F (27.5°C) in August to a still moderately hot 75°F (23.9°C). Against the high September temperatures, Fountain records an average drop to a cool 52.2°F (11.2°C) at night.Humidity
The average relative humidity in September in Fountain is 46%.Rainfall
In Fountain, in September, during 10.5 rainfall days, 0.83" (21mm) of precipitation is typically accumulated. In Fountain, during the entire year, the rain falls for 121.1 days and collects up to 12.99" (330mm) of precipitation.Snowfall
In Fountain, snow does not fall in June through September.Daylight
In Fountain, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:28 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:42 pm MDT.
Sunshine
The average sunshine in September in Fountain is 11h.UV index
In Fountain, Colorado, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum high UV index of 5 in September translates into the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Frequently asked questions
What is the usual temperature for Fountain in September?
What is the average humidity in September in Fountain?
How many days does it rain in September in Fountain?
When it does not snow in Fountain?
Does it snow in Fountain in September?
What is the average length of the day in September in Fountain?
When are sunrise and sunset in September in Fountain?
How long on average sun shines in September in Fountain?
What is the UV index intensity in September in Fountain?
Average temperature in September
Fountain, CO
- Average high temperature in September: 75°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is December (39.2°F).
- Average low temperature in September: 52.2°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is December (21.6°F).
Average pressure in September
Fountain, CO
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is April (29.9"Hg).
Average wind speed in September
Fountain, CO
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in September
Fountain, CO
- Average humidity in September: 46%
The month with the highest relative humidity is February (63%).
The month with the lowest relative humidity is June (41%).
Average rainfall in September
Fountain, CO
- Average rainfall in September: 0.83"
The wettest month (with the highest rainfall) is July (2.2").
The driest month (with the least rainfall) is December (0.43").
Average rainfall days in September
Fountain, CO
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is November (4.4 days).
Average snowfall in September
Fountain, CO
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.72").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Fountain, CO
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Fountain, 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: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 54min).
Average sunshine days in September
Fountain, CO
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is November (22.4 days).
The month with the least sunshine days is July (8.9 days).
Average UV index in September
Fountain, CO
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Fountain, CO
- Average cloud cover in September: 15
The month with the most cloud cover is April (Cloud cover 25).
The months with the least cloud cover are June, September, October and November (Cloud cover 15).
Average visibility in September
Fountain, 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).
Fountain, Colorado, USA
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