August weather forecast
Las Cruces, NM

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The lovely hilly countryside in Las Cruces, New Mexico
The lovely hilly countryside in Las Cruces, New Mexico

Weather in August

The weather in August begins to show indications of a transitioning climate in Las Cruces but the high temperatures around 90.5°F (32.5°C) continue to dominate. This month sustains the enhanced rainfall trend from July, making it a moist stretch in the desert’s calendar. Despite the heat, August offers an exquisite display of monsoon clouds and sky theatre that heavily contrasts the regular dry and clear skies of this region.

Temperature

The arrival of August brings an average high-temperature of a still hot 90.5°F (32.5°C), closely following the temperature pattern of July. Las Cruces, during the nights of August, experiences an average temperature drop to an agreeable 72.9°F (22.7°C).

Heat index

In August, the average heat index is evaluated at a hot 91.4°F (33°C). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.

Humidity

The average relative humidity in August is 40%.

Rainfall

In August, the rain falls for 15.6 days. Throughout August, 1.81" (46mm) of precipitation is accumulated. Throughout the year, there are 84.4 rainfall days, and 9.72" (247mm) of precipitation is accumulated.

Snowfall

March through October are months without snowfall.

Daylight

The average length of the day in August is 13h and 18min.
On the first day of the month, sunrise is at 6:22 am and sunset at 8:04 pm. On the last day of August, sunrise is at 6:42 am and sunset at 7:32 pm MDT.

Sunshine

In Las Cruces, the average sunshine in August is 11.8h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In August, the maximum UV index of 7 suggests this advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Updated: Jun 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in August?

The high-temperature in Las Cruces during August is 90.5°F (32.5°C) and the low-temperature is 72.9°F (22.7°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is evaluated at 91.4°F (33°C).

What is the average humidity in August?

In Las Cruces, the average relative humidity in August is 40%.

How much does it rain in August?

In August, the rain falls for 15.6 days. Throughout August, 1.81" (46mm) of precipitation is accumulated.

When it does not snow?

In Las Cruces, snow does not fall in March through October.

How many hours of daylight does Las Cruces have in August?

In August, the average day length is 13h and 18min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 6:22 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 7:32 pm MDT.

How many hours of sunshine does Las Cruces have in August?

In August, the average sunshine duration is 11.8h.

What is the month with the highest UV index?

May through August, with an average maximum UV index of 7, are months with the highest UV index.

How high is the UV index in August?

The average daily maximum UV index in August is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Las Cruces, NM

Average temperature in August - Las Cruces, NM
  • Average high temperature in August: 90.5°F

The warmest month (with the highest average high temperature) is June (93.9°F).
The month with the lowest average high temperature is January (53.6°F).

  • Average low temperature in August: 72.9°F

The month with the highest average low temperature is July (73.8°F).
The coldest month (with the lowest average low temperature) is January (36.1°F).

Average pressure in August
Las Cruces, NM

Average pressure in August - Las Cruces, NM
  • Average pressure in August: 29.92"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

Average wind speed in August
Las Cruces, NM

Average wind speed in August - Las Cruces, NM
  • Average wind speed in August: 6.2mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is January (6mph).

Average humidity in August
Las Cruces, NM

Average humidity in August - Las Cruces, NM
  • Average humidity in August: 40%

The month with the highest relative humidity is December (50%).
The months with the lowest relative humidity are April and May (22%).

Average rainfall in August
Las Cruces, NM

Average rainfall in August - Las Cruces, NM
  • Average rainfall in August: 1.81"

The wettest month (with the highest rainfall) is July (2.28").
The driest month (with the least rainfall) is April (0.12").

Average rainfall days in August
Las Cruces, NM

Average rainfall days in August - Las Cruces, NM
  • Average rainfall days in August: 15.6 days

The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is May (2.8 days).

Average snowfall in August
Las Cruces, NM

Average snowfall in August - Las Cruces, NM
  • Average snowfall in August: 0"

The month with the highest snowfall is December (0.67").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").

Average snowfall days in August
Las Cruces, NM

Average snowfall days in August - Las Cruces, NM
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is December (1.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Las Cruces, NM

Average daylight in August / Average sunshine in August - Las Cruces, NM
  • Average daylight in August: 13h and 2min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in August: 11h and 5min

The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).

Average sunshine days in August
Las Cruces, NM

Average sunshine days in August - Las Cruces, NM
  • Average sunshine days in August: 10.4 days

The months with the most sunshine days are January and April (26.8 days).
The month with the least sunshine days is July (10.3 days).

Average UV index in August
Las Cruces, NM

Average UV index in August - Las Cruces, NM
  • Average UV index in August: 7

The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).

Average cloud cover in August
Las Cruces, NM

Average cloud cover in August - Las Cruces, NM
  • Average cloud cover in August: 16

The months with the most cloud cover are July and December (Cloud cover 18).
The month with the least cloud cover is May (Cloud cover 8).

Average visibility in August
Las Cruces, NM

Average visibility in August - Las Cruces, NM
  • Average visibility in August: 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).

Las Cruces, New Mexico, USA

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