September weather forecastFruitvale, CO
September
Weather in September
The first month of the autumn, September, is still a warm month in Fruitvale, Colorado, with an average temperature fluctuating between 52.3°F (11.3°C) and 75.6°F (24.2°C).Temperature
September sees a slight reduction in average high-temperature, with a shift from a moderately hot 83.1°F (28.4°C) in August to a still warm 75.6°F (24.2°C). Nighttime temperatures throughout September register a significant deviation from the day's highs, averaging at a cool 52.3°F (11.3°C).Humidity
In September, the average relative humidity is 40%.Rainfall
In Fruitvale, in September, during 8.9 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. Throughout the year, there are 103.3 rainfall days, and 8.9" (226mm) of precipitation is accumulated.Snowfall
In Fruitvale, snow does not fall in May through September.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September, sunrise is at 6:43 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:57 pm MDT.
Sunshine
In September, the average sunshine is 11h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Fruitvale, CO
- Average high temperature in September: 75.6°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (33.8°F).
- Average low temperature in September: 52.3°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in September
Fruitvale, CO
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The months with the lowest atmospheric pressure are May and June (29.9"Hg).
Average wind speed in September
Fruitvale, CO
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is June (7.4mph).
The calmest month (with the lowest average wind speed) is January (4.1mph).
Average humidity in September
Fruitvale, CO
- Average humidity in September: 40%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is June (30%).
Average rainfall in September
Fruitvale, CO
- Average rainfall in September: 0.71"
The wettest month (with the highest rainfall) is March (0.98").
The driest month (with the least rainfall) is November (0.55").
Average rainfall days in September
Fruitvale, CO
- Average rainfall days in September: 8.9 days
The month with the highest number of rainy days is April (11.7 days).
The month with the least rainy days is November (5.8 days).
Average snowfall in September
Fruitvale, CO
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.65").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Fruitvale, CO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Fruitvale, CO
- Average daylight in September: 12h and 24min
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 30min).
- Average sunshine in September: 11h and 0min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 18min).
Average sunshine days in September
Fruitvale, CO
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is November (21.9 days).
The month with the least sunshine days is August (14.1 days).
Average UV index in September
Fruitvale, CO
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Fruitvale, CO
- Average cloud cover in September: 12
The month with the most cloud cover is January (Cloud cover 32).
The month with the least cloud cover is June (Cloud cover 11).
Average visibility in September
Fruitvale, 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).





