May weather forecast
Altair, TX

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Weather in May

May, the last month of the spring in Altair, is another warm month, with an average temperature fluctuating between 84.7°F (29.3°C) and 67.5°F (19.7°C).

Temperature

The average high-temperature mildly increases in May, edging from 78.3°F (25.7°C) in April to a still moderately hot 84.7°F (29.3°C). Altair, in May, experiences an average temperature of 67.5°F (19.7°C) at night.

Heat index

Throughout May, the heat index is estimated at a fiery hot 95°F (35°C). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

The months with the highest humidity in Altair are February, March, May and June, with an average relative humidity of 78%.

Rainfall

The month with the most rainfall in Altair is May, when the rain falls for 15.8 days and typically aggregates up to 4.13" (105mm) of precipitation.

Snowfall

In Altair, Texas, snow does not fall in March through November.

Daylight

In Altair, the average length of the day in May is 13h and 39min.
On the first day of the month, sunrise is at 6:42 am and sunset at 8:02 pm. On the last day of May, sunrise is at 6:26 am and sunset at 8:21 pm CDT.

Sunshine

In May, the average sunshine is 8.5h.

UV index

In May, the average daily maximum UV index in Altair is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum high daily UV index of 6 during May translates into the following directions:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
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Frequently asked questions

How hot is it in Altair in May?

The high-temperature, in May, in Altair, records 84.7°F (29.3°C), while the low-temperature is 67.5°F (19.7°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, in May is estimated at 95°F (35°C).

What is the most humid month in Altair?

February, March, May and June, with an average relative humidity of 78%, are most humid months.

What is the average humidity in May in Altair?

In Altair, Texas, the average relative humidity in May is 78%.

What is the wettest month in Altair?

The month with the most rainfall in Altair is May, when the rain falls for 15.8 days and typically aggregates up to 4.13" (105mm) of precipitation.

How much does it rain in Altair in May?

In Altair, Texas, in May, during 15.8 rainfall days, 4.13" (105mm) of precipitation is typically accumulated.

When it does not snow in Altair?

In Altair, snow does not fall in March through November.

How many hours of daylight does Altair have in May?

In Altair, the average day length in May is 13h and 39min.

What time are sunrise and sunset in May in Altair?

In May, on the first day of the month, sunrise is at 6:42 am and sunset at 8:02 pm. On the last day of the month, in Altair, sunrise is at 6:26 am and sunset at 8:21 pm CDT.

How long on average sun shines in May in Altair?

The average sunshine duration in May in Altair is 8.5h.

What is the UV index intensity in May in Altair?

In May, the average daily maximum UV index in Altair, Texas, is 6. 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 May
Altair, TX

Average temperature in May - Altair, TX
  • Average high temperature in May: 84.7°F

The warmest month (with the highest average high temperature) is August (94.6°F).
The month with the lowest average high temperature is January (61°F).

  • Average low temperature in May: 67.5°F

The month with the highest average low temperature is August (75.4°F).
The coldest month (with the lowest average low temperature) is January (45°F).

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Average pressure in May
Altair, TX

Average pressure in May - Altair, TX
  • Average pressure in May: 29.94"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in May
Altair, TX

Average wind speed in May - Altair, TX
  • Average wind speed in May: 8.1mph

The windiest month (with the highest average wind speed) is April (8.7mph).
The calmest month (with the lowest average wind speed) is September (5.8mph).

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Average humidity in May
Altair, TX

Average humidity in May - Altair, TX
  • Average humidity in May: 78%

The months with the highest relative humidity are February, March, May and June (78%).
The month with the lowest relative humidity is August (71%).

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Average rainfall in May
Altair, TX

Average rainfall in May - Altair, TX
  • Average rainfall in May: 4.13"

The wettest month (with the highest rainfall) is May (4.13").
The driest months (with the least rainfall) are January and February (1.46").

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Average rainfall days in May
Altair, TX

Average rainfall days in May - Altair, TX
  • Average rainfall days in May: 15.8 days

The month with the highest number of rainy days is September (19 days).
The month with the least rainy days is January (10.3 days).

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Average snowfall in May
Altair, TX

Average snowfall in May - Altair, TX
  • Average snowfall in May: 0"

The months with the highest snowfall are January and December (0.08").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in May
Altair, TX

Average snowfall days in May - Altair, TX
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in May /
Average sunshine in May
Altair, TX

Average daylight in May / Average sunshine in May - Altair, TX
  • Average daylight in May: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in May: 8h and 3min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

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Average sunshine days in May
Altair, TX

Average sunshine days in May - Altair, TX
  • Average sunshine days in May: 12.7 days

The month with the most sunshine days is January (19.4 days).
The month with the least sunshine days is September (8.8 days).

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Average UV index in May
Altair, TX

Average UV index in May - Altair, TX
  • Average UV index in May: 6

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

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Average cloud cover in May
Altair, TX

Average cloud cover in May - Altair, TX
  • Average cloud cover in May: 45

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in May
Altair, TX

Average visibility in May - Altair, TX
  • Average visibility in May: 5mi

The months with the highest visibility are January, February, March, April, August, September, October, November and December (6mi).
The months with the lowest visibility are May, June and July (5mi).

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Altair, Texas, USA

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