September weather forecastFarmington, NM
September
Weather in September
September marks yet a decreasing trend in temperature in Farmington with peaks around 77.9°F (25.5°C), drawing nearer to the cooler fall season. It is time to bid farewell to the heavy rainfall of August, as precipitation levels drop to 0.94" (24mm). Visibility is consistent at 6 miles, a parameter that remains fairly stable throughout the year. An outstanding feature is that cloud coverage falls to 11%, making for clearer skies. The city takes a noticeable turn from hot summers to the cooler and pleasant autumn weather during this period.Temperature
The onset of September brings a small shift in high-temperatures, falling from a moderately hot 85.3°F (29.6°C) in August to a still warm 77.9°F (25.5°C). Throughout September, Farmington witnesses a nighttime temperature average of 58.1°F (14.5°C).Humidity
The average relative humidity in September is 38%.Rainfall
In Farmington, during September, the rain falls for 8.6 days and regularly aggregates up to 0.94" (24mm) of precipitation. Throughout the year, there are 88.9 rainfall days, and 9.57" (243mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 24min.On the first day of the month, sunrise is at 6:44 am and sunset at 7:40 pm. On the last day of September, sunrise is at 7:07 am and sunset at 6:57 pm MDT.
Sunshine
In September, the average sunshine is 11.1h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Farmington, NM
- Average high temperature in September: 77.9°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (37.6°F).
- Average low temperature in September: 58.1°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure in September
Farmington, NM
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Farmington, NM
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest month (with the lowest average wind speed) is January (5.7mph).
Average humidity in September
Farmington, NM
- Average humidity in September: 38%
The month with the highest relative humidity is January (73%).
The month with the lowest relative humidity is June (23%).
Average rainfall in September
Farmington, NM
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is August (1.14").
The driest month (with the least rainfall) is June (0.28").
Average rainfall days in September
Farmington, NM
- Average rainfall days in September: 8.6 days
The month with the highest number of rainy days is July (13.8 days).
The month with the least rainy days is June (3.5 days).
Average snowfall in September
Farmington, NM
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.04").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Farmington, NM
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.8 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
Farmington, NM
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 11h and 6min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 36min).
Average sunshine days in September
Farmington, NM
- Average sunshine days in September: 17.5 days
The month with the most sunshine days is June (24.4 days).
The month with the least sunshine days is July (12.3 days).
Average UV index in September
Farmington, 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, February, November and December (UV index 2).
Average cloud cover in September
Farmington, NM
- Average cloud cover in September: 11
The month with the most cloud cover is January (Cloud cover 27).
The month with the least cloud cover is June (Cloud cover 10).
Average visibility in September
Farmington, NM
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
