September weather forecastPitkin, CO
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Pitkin, Colorado, with an average temperature varying between 64°F (17.8°C) and 36.1°F (2.3°C).Temperature
Pitkin's September weather features a light decline in high-temperatures, reducing from an agreeable 70.3°F (21.3°C) in August to a comfortable 64°F (17.8°C). Pitkin's average low-temperature of 36.1°F (2.3°C) in September reflects a considerable decline from the daytime peak.Humidity
In Pitkin, the average relative humidity in September is 56%.Rainfall
In Pitkin, during September, the rain falls for 9.3 days and regularly aggregates up to 0.75" (19mm) of precipitation. Throughout the year, in Pitkin, there are 102.9 rainfall days, and 10.63" (270mm) of precipitation is accumulated.Snowfall
Months with snowfall in Pitkin are January through June, August through December. In September, it is snowing for 1.2 days. Throughout September, 0.39" (10mm) of snow is accumulated. Throughout the year, there are 90.8 snowfall days, and 41.65" (1058mm) of snow is accumulated.Daylight
The average length of the day in September in Pitkin is 12h and 25min.On the first day of the month, sunrise is at 6:36 am and sunset at 7:35 pm. On the last day of September, in Pitkin, Colorado, sunrise is at 7:01 am and sunset at 6:49 pm MDT.
Sunshine
In Pitkin, Colorado, the average sunshine in September is 11.1h.UV index
In September, the average daily maximum UV index in Pitkin is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: An average UV index of 3 in September transforms into this advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. When the Sun is at its strongest around midday, find shade and limit exposure. Boost your sun resistance with garments that are densely woven yet spacious. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Pitkin, CO
- Average high temperature in September: 64°F
The warmest month (with the highest average high temperature) is July (72.7°F).
The month with the lowest average high temperature is December (25.3°F).
- Average low temperature in September: 36.1°F
The month with the highest average low temperature is July (42.1°F).
The coldest month (with the lowest average low temperature) is January (1.8°F).
Average pressure in September
Pitkin, CO
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is April (29.94"Hg).
Average wind speed in September
Pitkin, CO
- Average wind speed in September: 4.7mph
The windiest month (with the highest average wind speed) is June (6.2mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in September
Pitkin, CO
- Average humidity in September: 56%
The month with the highest relative humidity is February (89%).
The month with the lowest relative humidity is June (46%).
Average rainfall in September
Pitkin, CO
- Average rainfall in September: 0.75"
The wettest month (with the highest rainfall) is July (1.97").
The driest month (with the least rainfall) is November (0.47").
Average rainfall days in September
Pitkin, CO
- Average rainfall days in September: 9.3 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is November (3.4 days).
Average snowfall in September
Pitkin, CO
- Average snowfall in September: 0.39"
The month with the highest snowfall is March (7.36").
The month with the least snowfall is July (0").
Average snowfall days in September
Pitkin, CO
- Average snowfall days in September: 1.2 days
The month with the highest number of snowfall days is February (14 days).
The month with the least snowfall days is July (0.1 days).
Average daylight in September /
Average sunshine in September
Pitkin, 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: 11h and 6min
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 12min).
Average sunshine days in September
Pitkin, CO
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is November (20.8 days).
The month with the least sunshine days is July (7.3 days).
Average UV index in September
Pitkin, CO
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in September
Pitkin, CO
- Average cloud cover in September: 14
The month with the most cloud cover is February (Cloud cover 39).
The month with the least cloud cover is June (Cloud cover 13).
Average visibility in September
Pitkin, CO
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
