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 start of September signals a gentle decrease in the average high-temperature, transitioning from a tropical 90.9°F (32.7°C) in August to a warm 82.6°F (28.1°C). Throughout September, the temperature in San Jon tends to fall to a consistent average low of 62.8°F (17.1°C).Heat index
The heat index value during September is computed to be 82.4°F (28°C). If exposure and activity are sustained, they might cause a feeling of weariness, resulting in heat cramps.Bear in mind that the heat index values are determined for shaded areas and light 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', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
In San Jon, the average relative humidity in September is 49%.Rainfall
In San Jon, in September, it is raining for 10.4 days, with typically 1.06" (27mm) of accumulated precipitation. In San Jon, during the entire year, the rain falls for 73.4 days and collects up to 8.39" (213mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In September, the average length of the day in San Jon is 12h and 23min.On the first day of September in San Jon, New Mexico, sunrise is at 6:26 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:38 pm MDT.
Sunshine
In San Jon, the average sunshine in September is 10.5h.UV index
In San Jon, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in San Jon in September?
What is the average humidity in September in San Jon?
How much does it rain in San Jon in September?
When it does not snow in San Jon?
Does it snow in San Jon in September?
How many hours of daylight does San Jon have in September?
When is the sunrise / sunset in September in San Jon?
How many hours of sunshine does San Jon have in September?
What is the UV index intensity in September in San Jon?
Average temperature in September
San Jon, NM
- Average high temperature in September: 82.6°F
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is December (48.9°F).
- Average low temperature in September: 62.8°F
The month with the highest average low temperature is July (71.1°F).
The coldest month (with the lowest average low temperature) is December (31.3°F).
Average pressure in September
San Jon, NM
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are April and June (29.85"Hg).
Average wind speed in September
San Jon, NM
- Average wind speed in September: 10.9mph
The windiest month (with the highest average wind speed) is April (12.7mph).
The calmest month (with the lowest average wind speed) is January (9.6mph).
Average humidity in September
San Jon, NM
- Average humidity in September: 49%
The month with the highest relative humidity is December (54%).
The month with the lowest relative humidity is April (33%).
Average rainfall in September
San Jon, NM
- Average rainfall in September: 1.06"
The wettest months (with the highest rainfall) are June and October (1.18").
The driest month (with the least rainfall) is January (0.24").
Average rainfall days in September
San Jon, NM
- Average rainfall days in September: 10.4 days
The month with the highest number of rainy days is August (11.2 days).
The month with the least rainy days is November (1.8 days).
Average snowfall in September
San Jon, NM
- Average snowfall in September: 0"
The month with the highest snowfall is December (1.26").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
San Jon, NM
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.6 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
San Jon, 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: 10h and 3min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 7h and 0min).
Average sunshine days in September
San Jon, NM
- Average sunshine days in September: 16.6 days
The month with the most sunshine days is January (27.6 days).
The month with the least sunshine days is August (15.7 days).
Average UV index in September
San Jon, NM
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
San Jon, NM
- Average cloud cover in September: 16
The month with the most cloud cover is December (Cloud cover 20).
The month with the least cloud cover is June (Cloud cover 12).
Average visibility in September
San Jon, 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).
San Jon, New Mexico, USA
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