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 tropical 90.1°F (32.3°C) to a moderately hot 83.7°F (28.7°C). Throughout September, an average low-temperature of 65.5°F (18.6°C) is expected.Heat index
The heat index value during September is appraised at 84.2°F (29°C). Uninterrupted exposure and activity might result in fatigue, potentially causing heat cramps.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', arises from combining readings of air temperature and relative moisture content. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Humidity
In White Sands, the average relative humidity in September is 45%.Rainfall
In September, the rain falls for 13.3 days. Throughout September, 2.01" (51mm) of precipitation is accumulated. In White Sands, during the entire year, the rain falls for 93.3 days and collects up to 13.66" (347mm) of precipitation.Snowfall
In White Sands, snow does not fall in March through October.Daylight
In White Sands, the average length of the day in September is 12h and 21min.On the first day of September, sunrise is at 6:41 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:51 pm MDT.
Sunshine
The average sunshine in September is 11.2h.UV index
The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How much does it rain in White Sands in September?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does White Sands have in September?
What is the UV index reading in September?
Average temperature in September
White Sands, NM
- Average high temperature in September: 83.7°F
The warmest month (with the highest average high temperature) is June (92.7°F).
The months with the lowest average high temperature are January and December (52.9°F).
- Average low temperature in September: 65.5°F
The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in September
White Sands, NM
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in September
White Sands, NM
- Average wind speed in September: 5.9mph
The windiest month (with the highest average wind speed) is April (9.7mph).
The calmest month (with the lowest average wind speed) is January (5.4mph).
Average humidity in September
White Sands, NM
- Average humidity in September: 45%
The month with the highest relative humidity is December (51%).
The months with the lowest relative humidity are April and May (23%).
Average rainfall in September
White Sands, NM
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is April (0.35").
Average rainfall days in September
White Sands, NM
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is February (4 days).
Average snowfall in September
White Sands, NM
- Average snowfall in September: 0"
The month with the highest snowfall is December (0.98").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").
Average snowfall days in September
White Sands, NM
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (1.4 days).
The months with the least snowfall days are March, April, May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
White Sands, NM
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 11h and 1min
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
White Sands, NM
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is January (25.4 days).
The month with the least sunshine days is July (11.5 days).
Average UV index in September
White Sands, NM
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
White Sands, NM
- Average cloud cover in September: 16
The month with the most cloud cover is December (Cloud cover 20).
The months with the least cloud cover are May and June (Cloud cover 10).
Average visibility in September
White Sands, 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).
White Sands, New Mexico, USA
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