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
A mild drop in Monte Vista's average high-temperature is observed in September, transitioning from a warm 76.1°F (24.5°C) in August to an agreeable 70.3°F (21.3°C). Compared to daytime temperatures, Monte Vista's temperature drops significantly, averaging a frosty 43.5°F (6.4°C) during the nights of September.Humidity
In Monte Vista, Colorado, the average relative humidity in September is 51%.Rainfall
In September, the rain falls for 12.2 days. Throughout September, 1.14" (29mm) of precipitation is accumulated. In Monte Vista, Colorado, during the entire year, the rain falls for 112.8 days and collects up to 11.93" (303mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.3 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 56.6 snowfall days, and 30.67" (779mm) of snow is accumulated.Daylight
In September, the average length of the day is 12h and 25min.On the first day of September in Monte Vista, sunrise is at 6:35 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:48 pm MDT.
Sunshine
In September, the average sunshine is 11.3h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the maximum UV index of 4 suggests this advice:
Adopt protective measures - Suggestions to resist sunburn are offered. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How many days does it rain in September?
When does it start to snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Monte Vista have in September?
How high is the UV index in September?
Average temperature in September
Monte Vista, CO
- Average high temperature in September: 70.3°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (30.4°F).
- Average low temperature in September: 43.5°F
The month with the highest average low temperature is July (48.7°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in September
Monte Vista, CO
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is April (29.92"Hg).
Average wind speed in September
Monte Vista, CO
- Average wind speed in September: 4.4mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in September
Monte Vista, CO
- Average humidity in September: 51%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is June (39%).
Average rainfall in September
Monte Vista, CO
- Average rainfall in September: 1.14"
The wettest month (with the highest rainfall) is July (2.44").
The driest month (with the least rainfall) is November (0.43").
Average rainfall days in September
Monte Vista, CO
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is November (3.4 days).
Average snowfall in September
Monte Vista, CO
- Average snowfall in September: 0.04"
The month with the highest snowfall is March (5.51").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Monte Vista, CO
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is February (10.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Monte Vista, CO
- Average daylight in September: 12h and 2min
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: 11h and 2min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The months with the least sunshine are January and February (Average sunshine: 6h and 54min).
Average sunshine days in September
Monte Vista, CO
- Average sunshine days in September: 11.5 days
The month with the most sunshine days is November (22.7 days).
The month with the least sunshine days is July (5.8 days).
Average UV index in September
Monte Vista, CO
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Monte Vista, CO
- Average cloud cover in September: 13
The months with the most cloud cover are January and February (Cloud cover 25).
The months with the least cloud cover are June, September, October and November (Cloud cover 13).
Average visibility in September
Monte Vista, CO
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Monte Vista, Colorado, USA
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