August weather forecast
Fort Sumner, NM

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Weather in August

The weather in August remains akin to July with maximum temperatures and relieving summer showers. The highest rainfall amount is 1.34in, characterizing August as hosting the peak monsoon. Despite the slightly shorter daylight hours, temperatures stay consistent with those of July. Cloud coverage decreases marginally. Additionally, the pace of the wind lessens, assuring less wind-chill effect.

Temperature

Fort Sumner's average high-temperature in August sits at a still tropical 88.9°F (31.6°C), showing little difference from the previous month. In the month of August, Fort Sumner witnesses a consistent average low-temperature of 67.6°F (19.8°C).

Heat index

August's average heat index is estimated at a hot 89.6°F (32°C). One might feel worn out with persistent exposure and activity, resulting in heat cramps.
Understand that the heat index values take into account shaded locations and mild winds. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.

Humidity

In Fort Sumner, the average relative humidity in August is 41%.

Rainfall

In Fort Sumner, in August, it is raining for 11.8 days, with typically 1.34" (34mm) of accumulated precipitation. Throughout the year, there are 78.6 rainfall days, and 9.06" (230mm) of precipitation is accumulated.

Snowfall

In Fort Sumner, snow does not fall in May through September.

Daylight

The average length of the day in August is 13h and 24min.
On the first day of August, sunrise is at 6:08 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:24 pm MDT.

Sunshine

In Fort Sumner, the average sunshine in August is 11.8h.

UV index

In August, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index, 6 in August, converts into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Boost your sun resistance with garments that are densely woven yet spacious.
Updated: Jul 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 August, in Fort Sumner, records 88.9°F (31.6°C), while the low-temperature is 67.6°F (19.8°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, is estimated at 89.6°F (32°C).

What is the average humidity in August?

The average relative humidity in August is 41%.

How many days does it rain in August?

In Fort Sumner, in August, it is raining for 11.8 days, with typically 1.34" (34mm) of accumulated precipitation.

When it does not snow?

May through September are months without snowfall.

How many hours of daylight does Fort Sumner have in August?

In August, the average day length is 13h and 24min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 6:08 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:24 pm MDT.

How many hours of sunshine does Fort Sumner have in August?

The average sunshine duration in August is 11.8h.

How high is the UV index in August?

In Fort Sumner, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's UV radiation.
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
Fort Sumner, NM

Average temperature in August - Fort Sumner, NM
  • Average high temperature in August: 88.9°F

The warmest months (with the highest average high temperature) are June and July (90°F).
The month with the lowest average high temperature is December (49.3°F).

  • Average low temperature in August: 67.6°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

Average pressure in August
Fort Sumner, NM

Average pressure in August - Fort Sumner, NM
  • Average pressure in August: 29.96"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is April (29.86"Hg).

Average wind speed in August
Fort Sumner, NM

Average wind speed in August - Fort Sumner, NM
  • Average wind speed in August: 9mph

The windiest month (with the highest average wind speed) is April (12.9mph).
The calmest month (with the lowest average wind speed) is August (9mph).

Average humidity in August
Fort Sumner, NM

Average humidity in August - Fort Sumner, NM
  • Average humidity in August: 41%

The month with the highest relative humidity is December (52%).
The month with the lowest relative humidity is April (31%).

Average rainfall in August
Fort Sumner, NM

Average rainfall in August - Fort Sumner, NM
  • Average rainfall in August: 1.34"

The wettest month (with the highest rainfall) is July (1.61").
The driest month (with the least rainfall) is January (0.35").

Average rainfall days in August
Fort Sumner, NM

Average rainfall days in August - Fort Sumner, NM
  • Average rainfall days in August: 11.8 days

The month with the highest number of rainy days is July (12.5 days).
The month with the least rainy days is November (2.4 days).

Average snowfall in August
Fort Sumner, NM

Average snowfall in August - Fort Sumner, NM
  • Average snowfall in August: 0"

The month with the highest snowfall is November (1.85").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Fort Sumner, NM

Average snowfall days in August - Fort Sumner, NM
  • Average snowfall days in August: 0 days

The months with the highest number of snowfall days are January and December (3.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Fort Sumner, NM

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

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in August: 11h and 5min

The month with the most sunshine is June (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 7h and 6min).

Average sunshine days in August
Fort Sumner, NM

Average sunshine days in August - Fort Sumner, NM
  • Average sunshine days in August: 14.4 days

The month with the most sunshine days is November (25.5 days).
The month with the least sunshine days is July (14 days).

Average UV index in August
Fort Sumner, NM

Average UV index in August - Fort Sumner, NM
  • Average UV index in August: 6

The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in August
Fort Sumner, NM

Average cloud cover in August - Fort Sumner, NM
  • Average cloud cover in August: 15

The month with the most cloud cover is December (Cloud cover 19).
The month with the least cloud cover is June (Cloud cover 12).

Average visibility in August
Fort Sumner, NM

Average visibility in August - Fort Sumner, 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).

Fort Sumner, New Mexico, USA

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