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 onset brings a negligible change in high-temperatures, falling from a tropical 88.9°F (31.6°C) in August to a warm 81.3°F (27.4°C). Fort Sumner records an average low of 60.8°F (16°C) throughout the nights in September.Heat index
September's average heat index is estimated at 82.4°F (28°C). With constant exposure and activity, a state of weariness might ensue, leading to potential heat cramps.One should consider that heat index numbers are for shaded settings and light wind. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', represents the fusion of temperature and moisture in the air to suggest how warm it feels. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Humidity
In September, the average relative humidity is 48%.Rainfall
In Fort Sumner, during September, the rain falls for 9.2 days and regularly aggregates up to 1.06" (27mm) of precipitation. Throughout the year, there are 78.6 rainfall days, and 9.06" (230mm) of precipitation is accumulated.Snowfall
In Fort Sumner, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 6:30 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:41 pm MDT.
Sunshine
In Fort Sumner, the average sunshine in September is 10.8h.UV index
In Fort Sumner, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Fort Sumner have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Fort Sumner have in September?
What is the UV index intensity in September?
Average temperature in September
Fort Sumner, NM
- Average high temperature in September: 81.3°F
The warmest months (with the highest average high temperature) are June and July (90°F).
The month with the lowest average high temperature is December (49.3°F).
- Average low temperature in September: 60.8°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in September
Fort Sumner, NM
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is April (29.86"Hg).
Average wind speed in September
Fort Sumner, NM
- Average wind speed in September: 10.1mph
The windiest month (with the highest average wind speed) is April (12.9mph).
The calmest month (with the lowest average wind speed) is August (9mph).
Average humidity in September
Fort Sumner, NM
- Average humidity in September: 48%
The month with the highest relative humidity is December (52%).
The month with the lowest relative humidity is April (31%).
Average rainfall in September
Fort Sumner, NM
- Average rainfall in September: 1.06"
The wettest month (with the highest rainfall) is July (1.61").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in September
Fort Sumner, NM
- Average rainfall days in September: 9.2 days
The month with the highest number of rainy days is July (12.5 days).
The month with the least rainy days is November (2.4 days).
Average snowfall in September
Fort Sumner, NM
- Average snowfall in September: 0"
The month with the highest snowfall is November (1.85").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Fort Sumner, NM
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and December (3.5 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
Fort Sumner, NM
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 10h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 7h and 6min).
Average sunshine days in September
Fort Sumner, NM
- Average sunshine days in September: 17.9 days
The month with the most sunshine days is November (25.5 days).
The month with the least sunshine days is July (14 days).
Average UV index in September
Fort Sumner, NM
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Fort Sumner, NM
- Average cloud cover in September: 16
The month with the most cloud cover is December (Cloud cover 19).
The month with the least cloud cover is June (Cloud cover 12).
Average visibility in September
Fort Sumner, 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).
Fort Sumner, New Mexico, USA
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