Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September brings a slight decrease in the average high-temperature, shifting from a tropical 86.2°F (30.1°C) in August to a warm 79°F (26.1°C). Otis records a consistent low-temperature average of 56.8°F (13.8°C) during September, indicating a significant difference from the daytime heat.Humidity
August and September, with an average relative humidity of 47%, are the least humid months in Otis, Colorado.Rainfall
In Otis, in September, it is raining for 9.2 days, with typically 0.71" (18mm) of accumulated 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, Colorado, snow does not fall in June through September.Daylight
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, in Otis, sunrise is at 6:47 am and sunset at 6:35 pm MDT.
Sunshine
The average sunshine in September 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 moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 5 in September translates into these instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Frequently asked questions
What is the average September temperature in Otis?
What are the least humid months in Otis?
What is the average humidity in September in Otis?
How much does it rain in Otis in September?
When it does not snow in Otis?
Does it snow in Otis in September?
How many hours of daylight does Otis have in September?
What time are sunrise and sunset in September in Otis?
How long on average sun shines in September in Otis?
What is the UV index reading in September in Otis?
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 2min
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 2min
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).
Otis, Colorado, USA
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