September weather forecastStanley, NM
September
Weather in September
The first month of the autumn, September, is still a warm month in Stanley, New Mexico, with an average temperature varying between 76.1°F (24.5°C) and 55.6°F (13.1°C).Temperature
September ushers in a minor alteration in Stanley's climate, with the average high-temperature moving from August's 82.8°F (28.2°C) to a still moderately hot 76.1°F (24.5°C). An average temperature of 55.6°F (13.1°C) marks the nights in Stanley, New Mexico, in September.Humidity
In Stanley, the average relative humidity in September is 49%.Rainfall
In Stanley, during September, the rain falls for 9.8 days and regularly aggregates up to 1.26" (32mm) of precipitation. In Stanley, during the entire year, the rain falls for 86.3 days and collects up to 10.71" (272mm) of precipitation.Snowfall
June through September are months without snowfall in Stanley.Daylight
The average length of the day in September is 12h and 23min.On the first day of September in Stanley, sunrise is at 6:37 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:48 pm MDT.
Sunshine
In September, the average sunshine in Stanley is 11.1h.UV index
In Stanley, 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 average individuals.Note: An average maximum UV index of 5 in September leads to these recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Stanley, NM
- Average high temperature in September: 76.1°F
The warmest month (with the highest average high temperature) is June (84.2°F).
The month with the lowest average high temperature is January (41.7°F).
- Average low temperature in September: 55.6°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure in September
Stanley, NM
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is April (29.88"Hg).
Average wind speed in September
Stanley, NM
- Average wind speed in September: 8.1mph
The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).
Average humidity in September
Stanley, NM
- Average humidity in September: 49%
The month with the highest relative humidity is January (65%).
The month with the lowest relative humidity is June (31%).
Average rainfall in September
Stanley, NM
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is July (2.09").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days in September
Stanley, NM
- Average rainfall days in September: 9.8 days
The month with the highest number of rainy days is July (14.4 days).
The month with the least rainy days is January (3.6 days).
Average snowfall in September
Stanley, NM
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.82").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Stanley, NM
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Stanley, NM
- Average daylight in September: 12h and 24min
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 6min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in September
Stanley, NM
- Average sunshine days in September: 17.4 days
The months with the most sunshine days are January and November (24.1 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in September
Stanley, NM
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, November and December (UV index 2).
Average cloud cover in September
Stanley, NM
- Average cloud cover in September: 15
The month with the most cloud cover is December (Cloud cover 24).
The month with the least cloud cover is June (Cloud cover 12).
Average visibility in September
Stanley, 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).





