Las Cruces, NM weather in September
Expect hot, mostly dry weather in Las Cruces in September, with highs near 88°F and lows near 61°F. Rain falls on about 5 days.
- Normal high
- 88°F
- Normal low
- 61°F
- Wet days
- 5
- 1.4 in total
- Muggy days
- 0
- dew point 65°F+
How September changes from start to finish
| September 1 | September 30 | |
|---|---|---|
| Normal high | 92°F | 85°F |
| Normal low | 66°F | 56°F |
| Chance of a wet day | 22% | 14% |
| Sunrise / sunset | 6:42 am / 7:31 pm | 7:00 am / 6:53 pm |
| Daylight | 12.8 h | 11.9 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Mountain Time).
A typical September day
- 6 am66°Fdew point 52°F
- 9 am75°Fdew point 53°F
- Noon83°Fdew point 51°F
- 3 pm87°Fdew point 48°F
- 6 pm83°Fdew point 48°F
- 9 pm77°Fdew point 50°F
NOAA hourly normals (local standard time) from El Paso Intl Airport (42 mi away); average wind 7 mph; clear or few clouds in 55% of daytime hours, mostly cloudy or overcast in 19%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F2 of 30
- Hot dayshigh 90°F or more14 of 30
- Muggy daysdaily mean dew point 65°F or more0 of 30
- Wet daysat least 0.01 in of rain or melted snow5 of 30
- Notable rainat least 0.10 in3 of 30
- Freezing nightslow 32°F or below0 of 30
- Snow on the groundsnow depth 1 in or more0 of 30
Average days per September, counted from daily records for each year 1991-2020.
Rain in September
Normal precipitation is 1.4 in; a dry September brings about 0.5 in and a wet one about 2.0 in (25th and 75th percentiles). About 1 day brings half an inch or more.
How September varies from year to year
- Warmest September, 1991-20202000: average high 93°F
- Coolest September2006: average high 82°F
- Wettest September2006: 4.4 in
- Driest September1998: 0.03 in
- Highest reading103°F (September 1, 2011)
- Lowest reading45°F (September 23, 1995)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
September compared with August and October
| August | September | October | |
|---|---|---|---|
| Normal high | 94°F | 88°F | 80°F |
| Normal low | 68°F | 61°F | 48°F |
| Wet days | 8 | 5 | 4 |
| Comfortable days | 0 | 2 | 13 |
| Daylight | 13.3 h | 12.4 h | 11.4 h |
Highs change by -6°F from August and -8°F into October.
Nearby alternatives in September
- Warmer: Tucson, AZ242 mi · high 95°F · 4 wet days
- Cooler: Albuquerque, NM192 mi · high 83°F · 6 wet days
How Las Cruces ranks in September
- Normal high91st warmest of 378 cities; 1st of 4 in New Mexico
- Wet days88th driest of 378
- Comfortable days252nd most of 342
What to pack for Las Cruces in September
- Light, breathable clothing – highs near 88°F
- Layers – afternoons near 88°F but nights near 61°F
Heating and cooling
September has 3 heating degree days and 296 cooling degree days (base 65°F), 6% of the year's total heating and cooling demand.
Questions
How hot is Las Cruces in September?
The normal high is 88°F and the normal low is 61°F. From 1991 to 2020 the hottest September reading was 103°F (September 1, 2011).
Does it rain a lot in Las Cruces in September?
About 5 days in September have at least 0.01 in of precipitation, and the normal total is 1.4 in. The wettest September in 1991-2020 was in 2006 (4.4 in); the driest was in 1998 (0.03 in).
Is September a good time to visit Las Cruces?
September ranks 9th of 12 months on our comfort score for Las Cruces (45 out of 100). It has about 2 comfortable days and about 14 days at 90°F or hotter. The best month is March.
Where the numbers come from
- Temperature, rain, snowfall, snow depth and frost dates: State Univ (USC00298535), 2.4 mi SSE of the city center, 3,886 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour and cloud cover: El Paso Intl Airport (USW00023044), 42 mi SE of the city center, 3,918 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: El Paso International Airport (722700-23044), 42 mi SE of the city center, 3,944 ft . Hourly observations, 1991-2020.