September weather forecastOtis, CO
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Otis, Colorado, with an average temperature ranging between max 79°F (26.1°C) and min 56.8°F (13.8°C).Temperature
Otis experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a tropical 86.2°F (30.1°C) in August to a warm 79°F (26.1°C). Nighttime temperatures exhibit a substantial dip from daytime highs during September, averaging at a mild 56.8°F (13.8°C).Humidity
The months with the lowest humidity are August and September, with an average relative humidity of 47%.Rainfall
In Otis, Colorado, during September, the rain falls for 9.2 days and regularly aggregates up to 0.71" (18mm) of precipitation. In Otis, during the entire year, the rain falls for 106.1 days and collects up to 13.66" (347mm) of precipitation.Snowfall
In Otis, snow does not fall in June through September.Daylight
In Otis, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:20 am and sunset at 7:22 pm. On the last day of September, sunrise is at 6:47 am and sunset at 6:35 pm MDT.
Sunshine
In September, the average sunshine is 10.4h.UV index
In Otis, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The daily maximum UV index of 5 in September interprets into the following advice:
Take precautions - Protection against skin and eye damage is obliged. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Otis, CO
- Average high temperature in September: 79°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is December (38.5°F).
- Average low temperature in September: 56.8°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is December (23.2°F).
Average pressure in September
Otis, CO
- Average pressure in September: 29.94"Hg
The months with the highest atmospheric pressure are January and December (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in September
Otis, CO
- Average wind speed in September: 9.7mph
The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest months (with the lowest average wind speed) are July and August (9.4mph).
Average humidity in September
Otis, CO
- Average humidity in September: 47%
The months with the highest relative humidity are January and February (64%).
The months with the lowest relative humidity are August and September (47%).
Average rainfall in September
Otis, CO
- Average rainfall in September: 0.71"
The wettest month (with the highest rainfall) is May (2.44").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in September
Otis, CO
- Average rainfall days in September: 9.2 days
The month with the highest number of rainy days is July (14.6 days).
The month with the least rainy days is February (3.6 days).
Average snowfall in September
Otis, CO
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Otis, CO
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (7.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Otis, CO
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 10h and 24min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 24min).
Average sunshine days in September
Otis, CO
- Average sunshine days in September: 18.8 days
The month with the most sunshine days is November (23.3 days).
The month with the least sunshine days is July (12.4 days).
Average UV index in September
Otis, CO
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Otis, CO
- Average cloud cover in September: 17
The month with the most cloud cover is February (Cloud cover 31).
The months with the least cloud cover are August and September (Cloud cover 17).
Average visibility in September
Otis, 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).
