September weather forecastGulnare, CO
September
Weather in September
September, the first month of the autumn in Gulnare, is still a warm month, with an average temperature ranging between min 50.7°F (10.4°C) and max 73.6°F (23.1°C).Temperature
Gulnare observes a small decrease in the average high-temperature with the arrival of September, falling from August's 80.1°F (26.7°C) to a still warm 73.6°F (23.1°C). September presents a sharp fall from Gulnare's daytime highs to an average low-temperature of 50.7°F (10.4°C).Humidity
The average relative humidity in September is 51%.Rainfall
In Gulnare, in September, it is raining for 11.6 days, with typically 0.94" (24mm) of accumulated precipitation. In Gulnare, during the entire year, the rain falls for 102.5 days and collects up to 12.95" (329mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 25min.On the first day of the month, sunrise is at 6:30 am and sunset at 7:27 pm. On the last day of September, sunrise is at 6:54 am and sunset at 6:43 pm MDT.
Sunshine
In September, the average sunshine is 10.9h.UV index
In Gulnare, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Gulnare, CO
- Average high temperature in September: 73.6°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (40.3°F).
- Average low temperature in September: 50.7°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is December (21°F).
Average pressure in September
Gulnare, CO
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is April (29.87"Hg).
Average wind speed in September
Gulnare, CO
- Average wind speed in September: 8mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in September
Gulnare, CO
- Average humidity in September: 51%
The month with the highest relative humidity is January (62%).
The month with the lowest relative humidity is June (41%).
Average rainfall in September
Gulnare, CO
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is November (0.39").
Average rainfall days in September
Gulnare, CO
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is November (2.5 days).
Average snowfall in September
Gulnare, CO
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.78").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Gulnare, CO
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Gulnare, 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 months with the least sunshine are January, February and December (Average sunshine: 6h and 54min).
Average sunshine days in September
Gulnare, CO
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is November (24.1 days).
The month with the least sunshine days is July (7.8 days).
Average UV index in September
Gulnare, CO
- Average UV index in September: 5
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in September
Gulnare, CO
- Average cloud cover in September: 16
The months with the most cloud cover are February and April (Cloud cover 23).
The month with the least cloud cover is October (Cloud cover 15).
Average visibility in September
Gulnare, 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).





