September weather forecastWhite Sands National Monument, NM
September
Weather in September
September brings the fall season, with a notable decrease in temperatures, indicating a respite from the intense summer heat. Daylight hours reduce significantly as part of autumn's arrival. Rainfall registers a downward shift from August, signaling the onset of drier conditions. As temperatures drop, a comfortable high of 89°F (31.7°C) is recorded. Autumn's advent paints the dunes with a cooler palette, with the shifting light dynamics transforming the landscape.Temperature
September implies a soft temperature shift, with average high-temperatures reducing from August's hot 94.6°F (34.8°C) to a still tropical 89.1°F (31.7°C). Despite the significant gap from daytime peaks, White Sands National Monument experiences an average low-temperature of 54.1°F (12.3°C) in September.Rainfall
In White Sands National Monument, during September, the rain falls for 5 days and regularly aggregates up to 1.3" (33mm) of precipitation. In White Sands National Monument, New Mexico, during the entire year, the rain falls for 42 days and collects up to 9.02" (229mm) of precipitation.Snowfall
In White Sands National Monument, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:40 am and sunset at 7:29 pm. On the last day of September, sunrise is at 6:59 am and sunset at 6:50 pm MDT.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
White Sands National Monument, NM
- Average high temperature in September: 89°F
The warmest month (with the highest average high temperature) is July (97.2°F).
The month with the lowest average high temperature is December (56.7°F).
- Average low temperature in September: 54.2°F
The month with the highest average low temperature is July (64.1°F).
The coldest month (with the lowest average low temperature) is December (21.7°F).
Average rainfall in September
White Sands National Monument, NM
- Average rainfall in September: 1.3"
The wettest month (with the highest rainfall) is August (1.8").
The driest months (with the least rainfall) are March and April (0.3").
Average rainfall days in September
White Sands National Monument, NM
- Average rainfall days in September: 5 days
The month with the highest number of rainy days is August (7 days).
The months with the least rainy days are March, April, May and November (2 days).
Average snowfall in September
White Sands National Monument, NM
- Average snowfall in September: 0"
The month with the highest snowfall is December (1").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average daylight in September
White Sands National Monument, NM
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
