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's arrival subtly correlates with a reduction in the average high-temperature, down from a moderately hot 85.6°F (29.8°C) in August to a still warm 78.8°F (26°C). South Valley's nighttime temperature during September is consistently averaged at a refreshing 58.5°F (14.7°C).Humidity
The average relative humidity in September in South Valley is 44%.Rainfall
In September, in South Valley, the rain falls for 10.2 days. Throughout September, 0.98" (25mm) of precipitation is accumulated. In South Valley, during the entire year, the rain falls for 87.6 days and collects up to 8.23" (209mm) of precipitation.Snowfall
May through September are months without snowfall in South Valley.Daylight
In South Valley, New Mexico, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:40 am and sunset at 7:32 pm. On the last day of September, sunrise is at 7:01 am and sunset at 6:51 pm MDT.
Sunshine
The average sunshine in September in South Valley is 11.3h.UV index
In South Valley, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The UV index of 5 during September leads to these advisories:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in South Valley?
What is the average humidity in September in South Valley?
How much does it rain in South Valley in September?
When it does not snow in South Valley?
Does it snow in South Valley in September?
What is the average length of the day in September in South Valley?
When is the sunrise / sunset in September in South Valley?
How many hours of sunshine does South Valley have in September?
What is the UV index reading in September in South Valley?
Average temperature in September
South Valley, NM
- Average high temperature in September: 78.8°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The months with the lowest average high temperature are January and December (43.9°F).
- Average low temperature in September: 58.5°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).
Average pressure in September
South Valley, NM
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are April and May (29.89"Hg).
Average wind speed in September
South Valley, NM
- Average wind speed in September: 6.4mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in September
South Valley, NM
- Average humidity in September: 44%
The month with the highest relative humidity is January (61%).
The month with the lowest relative humidity is June (27%).
Average rainfall in September
South Valley, NM
- Average rainfall in September: 0.98"
The wettest month (with the highest rainfall) is July (1.73").
The driest month (with the least rainfall) is March (0.35").
Average rainfall days in September
South Valley, NM
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is November (3.8 days).
Average snowfall in September
South Valley, NM
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.44").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
South Valley, NM
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (4.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
South Valley, NM
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 11h and 2min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The months with the least sunshine are January and December (Average sunshine: 7h and 0min).
Average sunshine days in September
South Valley, NM
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is November (24.5 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in September
South Valley, NM
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, November and December (UV index 2).
Average cloud cover in September
South Valley, NM
- Average cloud cover in September: 13
The month with the most cloud cover is December (Cloud cover 20).
The month with the least cloud cover is June (Cloud cover 10).
Average visibility in September
South Valley, 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).
South Valley, New Mexico, USA
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