September weather forecastChromo, CO
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Chromo, Colorado, with an average temperature fluctuating between 65.7°F (18.7°C) and 40.6°F (4.8°C).Temperature
Chromo's weather subtly changes with the onset of September, barely falling from an agreeable 71.1°F (21.7°C) in August to a refreshing 65.7°F (18.7°C). Contrary to the day's heat, an average low-temperature of 40.6°F (4.8°C) is recorded during the nights in September.Humidity
In September, the average relative humidity in Chromo is 59%.Rainfall
In September, the rain falls for 12.7 days. Throughout September, 1.65" (42mm) of precipitation is accumulated. Throughout the year, there are 109 rainfall days, and 22.8" (579mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Chromo, Colorado, during the entire year, snow falls for 87.5 days and aggregates up to 75.04" (1906mm) of snow.Daylight
The average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 6:38 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:51 pm MDT.
Sunshine
In Chromo, the average sunshine in September is 11h.UV index
In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In September, a daily maximum UV index of 3 leads to the following instructions:
Undertake precautions - Obligation exists to protect against skin and eye damage. To guard against the harmful effects of the Sun, minimize exposure during midday. Opt for tightly woven and loose clothing to enhance protection from the Sun. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Chromo, CO
- Average high temperature in September: 65.7°F
The warmest month (with the highest average high temperature) is July (73.8°F).
The month with the lowest average high temperature is January (28.9°F).
- Average low temperature in September: 40.6°F
The month with the highest average low temperature is July (46.8°F).
The coldest month (with the lowest average low temperature) is January (9°F).
Average pressure in September
Chromo, CO
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is April (29.91"Hg).
Average wind speed in September
Chromo, CO
- Average wind speed in September: 5mph
The windiest months (with the highest average wind speed) are April and May (7.3mph).
The calmest months (with the lowest average wind speed) are January, July and August (4.7mph).
Average humidity in September
Chromo, CO
- Average humidity in September: 59%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is June (42%).
Average rainfall in September
Chromo, CO
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is July (4.21").
The driest month (with the least rainfall) is June (1.22").
Average rainfall days in September
Chromo, CO
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is July (20 days).
The month with the least rainy days is November (2.1 days).
Average snowfall in September
Chromo, CO
- Average snowfall in September: 0.04"
The month with the highest snowfall is March (14.02").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Chromo, CO
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (15.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Chromo, 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 42min).
- Average sunshine in September: 11h and 0min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in September
Chromo, CO
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in September
Chromo, CO
- Average UV index in September: 3
The month with the highest UV index is June (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in September
Chromo, CO
- Average cloud cover in September: 17
The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is June (Cloud cover 13).
Average visibility in September
Chromo, 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 months with the lowest visibility are January, February and December (4mi).
