September weather forecastTrimble, CO
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Trimble, Colorado, with temperature in the range of an average low of 45.1°F (7.3°C) and an average high of 67.5°F (19.7°C).Temperature
With the onset of September, Trimble's climate undergoes a slight change as the average high-temperature moves from a warm 73.9°F (23.3°C) in August to a comfortable 67.5°F (19.7°C). Against the high September temperatures, Trimble records an average drop to a frosty 45.1°F (7.3°C) at night.Humidity
The average relative humidity in September in Trimble is 53%.Rainfall
In Trimble, in September, during 14.4 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. Throughout the year, there are 113.4 rainfall days, and 20.63" (524mm) of precipitation is accumulated.Snowfall
In Trimble, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:42 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:55 pm MDT.
Sunshine
The average sunshine in September is 10.9h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 4 in September translates into these instructions:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Trimble, CO
- Average high temperature in September: 67.5°F
The warmest month (with the highest average high temperature) is July (76.3°F).
The month with the lowest average high temperature is January (31.3°F).
- Average low temperature in September: 45.1°F
The month with the highest average low temperature is July (51.6°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in September
Trimble, CO
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.22"Hg).
The months with the lowest atmospheric pressure are April, May and June (29.91"Hg).
Average wind speed in September
Trimble, CO
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is December (4.9mph).
Average humidity in September
Trimble, CO
- Average humidity in September: 53%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is June (37%).
Average rainfall in September
Trimble, CO
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is July (3.07").
The driest month (with the least rainfall) is June (0.94").
Average rainfall days in September
Trimble, CO
- Average rainfall days in September: 14.4 days
The month with the highest number of rainy days is July (21.5 days).
The month with the least rainy days is November (3.4 days).
Average snowfall in September
Trimble, CO
- Average snowfall in September: 0"
The month with the highest snowfall is February (14.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Trimble, CO
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (12.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Trimble, CO
- Average daylight in September: 12h and 24min
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 54min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).
Average sunshine days in September
Trimble, CO
- Average sunshine days in September: 11.9 days
The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (6.9 days).
Average UV index in September
Trimble, CO
- Average UV index in September: 4
The months with the highest UV index are June, July and August (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
Trimble, CO
- Average cloud cover in September: 15
The month with the most cloud cover is February (Cloud cover 33).
The month with the least cloud cover is June (Cloud cover 12).
Average visibility in September
Trimble, 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).
