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
The shift from August to September includes a small decrease in the average high-temperature, from a moderately hot 78.6°F (25.9°C) to an agreeable 73°F (22.8°C). In September, Alto records an average nighttime temperature of 55°F (12.8°C).Humidity
The months with the highest humidity in Alto are September and December, with an average relative humidity of 56%.Rainfall
In Alto, in September, it is raining for 15.6 days, with typically 2.48" (63mm) of accumulated precipitation. In Alto, during the entire year, the rain falls for 105.3 days and collects up to 18.5" (470mm) of precipitation.Snowfall
In Alto, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:37 am and sunset at 7:27 pm. On the last day of September, in Alto, sunrise is at 6:56 am and sunset at 6:47 pm MDT.
Sunshine
In September, the average sunshine is 10.7h.UV index
In September, the average daily maximum UV index in Alto is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: In September, the maximum UV index of 5 suggests these recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Frequently asked questions
What are September temperatures in Alto?
What are the most humid months in Alto?
What is the average humidity in September in Alto?
How much does it rain in Alto in September?
When it does not snow in Alto?
Does it snow in Alto in September?
How many hours of daylight does Alto have in September?
When are sunrise and sunset in September in Alto?
How many hours of sunshine does Alto have in September?
How high is the UV index in September in Alto?
Average temperature in September
Alto, NM
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is June (81.3°F).
The month with the lowest average high temperature is December (45.1°F).
- Average low temperature in September: 55°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).
Average pressure in September
Alto, NM
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Alto, NM
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Alto, NM
- Average humidity in September: 56%
The months with the highest relative humidity are September and December (56%).
The month with the lowest relative humidity is April (30%).
Average rainfall in September
Alto, NM
- Average rainfall in September: 2.48"
The wettest month (with the highest rainfall) is August (4.53").
The driest month (with the least rainfall) is January (0.28").
Average rainfall days in September
Alto, NM
- Average rainfall days in September: 15.6 days
The month with the highest number of rainy days is August (21.7 days).
The month with the least rainy days is February (2.4 days).
Average snowfall in September
Alto, NM
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.62").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Alto, NM
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (5.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Alto, NM
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 10h and 4min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in September
Alto, NM
- Average sunshine days in September: 10.9 days
The month with the most sunshine days is November (25.8 days).
The month with the least sunshine days is July (6.2 days).
Average UV index in September
Alto, NM
- 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, November and December (UV index 2).
Average cloud cover in September
Alto, NM
- Average cloud cover in September: 19
The month with the most cloud cover is July (Cloud cover 21).
The months with the least cloud cover are May and June (Cloud cover 12).
Average visibility in September
Alto, NM
- 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).
Alto, New Mexico, USA
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