September weather forecastFirstview, CO
September
Weather in September
September, the first month of the autumn in Firstview, is also a moderately hot month, with an average temperature varying between 58.3°F (14.6°C) and 80.1°F (26.7°C).Temperature
In Firstview, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's hot 87.1°F (30.6°C) to a warm 80.1°F (26.7°C). A noticeable downturn in temperature characterizes the September nights, averaging at a refreshing 58.3°F (14.6°C).Humidity
In Firstview, Colorado, the average relative humidity in September is 49%.Rainfall
In Firstview, Colorado, in September, it is raining for 10.5 days, with typically 1.1" (28mm) of accumulated precipitation. In Firstview, during the entire year, the rain falls for 108.3 days and collects up to 13.39" (340mm) of precipitation.Snowfall
June through September are months without snowfall in Firstview, Colorado.Daylight
The average length of the day in September is 12h and 25min.On the first day of September in Firstview, sunrise is at 6:19 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 6:33 pm MDT.
Sunshine
In Firstview, the average sunshine in September is 10.1h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: A daily high UV index of 5 in September leads to these guidelines:
Take precautions - Protection against sunburn is recommended. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Firstview, CO
- Average high temperature in September: 80.1°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is December (41.2°F).
- Average low temperature in September: 58.3°F
The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is December (24.1°F).
Average pressure in September
Firstview, CO
- Average pressure in September: 29.92"Hg
The months with the highest atmospheric pressure are January and December (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.8"Hg).
Average wind speed in September
Firstview, CO
- Average wind speed in September: 11.2mph
The windiest month (with the highest average wind speed) is April (13mph).
The calmest month (with the lowest average wind speed) is August (10.3mph).
Average humidity in September
Firstview, CO
- Average humidity in September: 49%
The months with the highest relative humidity are January, February and December (61%).
The months with the lowest relative humidity are June and July (48%).
Average rainfall in September
Firstview, CO
- Average rainfall in September: 1.1"
The wettest months (with the highest rainfall) are May and July (1.93").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in September
Firstview, CO
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is July (15 days).
The months with the least rainy days are February and December (3.8 days).
Average snowfall in September
Firstview, CO
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.28").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Firstview, CO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (7.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Firstview, CO
- Average daylight in September: 12h and 24min
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 6min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 24min).
Average sunshine days in September
Firstview, CO
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is November (22.8 days).
The month with the least sunshine days is July (11.9 days).
Average UV index in September
Firstview, CO
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Firstview, CO
- Average cloud cover in September: 17
The month with the most cloud cover is February (Cloud cover 30).
The month with the least cloud cover is September (Cloud cover 17).
Average visibility in September
Firstview, 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).
