May weather forecast
Amarillo, TX

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Street lights shine bright in the night with a view of the scenic full moon up in Amarillo, Texas
Street lights shine bright in the night with a view of the scenic full moon up in Amarillo, Texas

Weather in May

May in Amarillo, Texas, is known for its significant transition into summer. The increase in temperature is prominent, with May springing to a high of 80.8°F (27.1°C). The month brings a remarkable blend of humidity and wind speed, leading to a distinct feel of summer. May's heat signals the cessation of snowfall and creates opportunities for outdoor recreational activities. The weather therefore becomes significantly warmer, marking the inevitable march towards the peak summer months.

Temperature

May's arrival coincides with a marginal rise in the average high-temperature, moving from April's pleasant 72.5°F (22.5°C) to a moderately hot 80.8°F (27.1°C). Amarillo's average low-temperature of 56.8°F (13.8°C) in May reflects a significant disparity from the daytime highs.

Heat index

The heat index for May is calculated to be 80.6°F (27°C). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.
One should consider that heat index numbers are for shaded settings and light wind. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. 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. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical 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 May in Amarillo is 44%.

Rainfall

In Amarillo, Texas, in May, it is raining for 8 days, with typically 1.22" (31mm) of accumulated precipitation. In Amarillo, during the entire year, the rain falls for 80.4 days and collects up to 9.76" (248mm) of precipitation.

Snowfall

In Amarillo, snow does not fall in May through September.

Daylight

In Amarillo, the average length of the day in May is 14h and 2min.
On the first day of the month, sunrise is at 6:55 am and sunset at 8:33 pm. On the last day of May, sunrise is at 6:33 am and sunset at 8:56 pm CDT.

Sunshine

In Amarillo, Texas, the average sunshine in May is 11.1h.

UV index

In May, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: A maximum high UV index of 6 in May translates into the following recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Always opt for UVA and UVB-resistant sunglasses on radiant days. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Updated: Jul 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures?

In Amarillo, in May, the average high-temperature is 80.8°F (27.1°C), and the average low-temperature is 56.8°F (13.8°C). In May, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 80.6°F (27°C).

What is the average humidity in May?

The average relative humidity in May is 44%.

How much does it rain in May?

In May, the rain falls for 8 days. Throughout May, 1.22" (31mm) of precipitation is accumulated.

When it does not snow?

May through September are months without snowfall.

Does it snow in Amarillo in May?

In May, it doesn't snow. April is the latest month when it typically snows.

What is the average length of the day in May?

The average day length in May is 14h and 2min.

When is the sunrise / sunset in May?

On the first day of May, sunrise is at 6:55 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 8:56 pm CDT.

How long on average sun shines in May?

In May, the average sunshine duration is 11.1h.

What is the UV index reading in May?

The average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unprotected exposure to 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 May
Amarillo, TX

Average temperature in May - Amarillo, TX
  • Average high temperature in May: 80.8°F

The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is December (49.8°F).

  • Average low temperature in May: 56.8°F

The month with the highest average low temperature is July (71.2°F).
The coldest months (with the lowest average low temperature) are January and December (31.1°F).

Average pressure in May
Amarillo, TX

Average pressure in May - Amarillo, TX
  • Average pressure in May: 29.86"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

Average wind speed in May
Amarillo, TX

Average wind speed in May - Amarillo, TX
  • Average wind speed in May: 13.2mph

The windiest month (with the highest average wind speed) is April (14.1mph).
The calmest month (with the lowest average wind speed) is August (10.7mph).

Average humidity in May
Amarillo, TX

Average humidity in May - Amarillo, TX
  • Average humidity in May: 44%

The month with the highest relative humidity is December (54%).
The month with the lowest relative humidity is April (42%).

Average rainfall in May
Amarillo, TX

Average rainfall in May - Amarillo, TX
  • Average rainfall in May: 1.22"

The wettest months (with the highest rainfall) are July and October (1.26").
The driest month (with the least rainfall) is February (0.24").

Average rainfall days in May
Amarillo, TX

Average rainfall days in May - Amarillo, TX
  • Average rainfall days in May: 8 days

The month with the highest number of rainy days is July (11.6 days).
The months with the least rainy days are January and February (2.5 days).

Average snowfall in May
Amarillo, TX

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

The month with the highest snowfall is January (1.18").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Amarillo, TX

Average snowfall days in May - Amarillo, TX
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is December (3.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Amarillo, TX
  • Average daylight in May: 14h and 0min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in May: 11h and 1min

The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).

Average sunshine days in May
Amarillo, TX

Average sunshine days in May - Amarillo, TX
  • Average sunshine days in May: 20.3 days

The month with the most sunshine days is January (26.3 days).
The month with the least sunshine days is July (15.4 days).

Average UV index in May
Amarillo, TX

Average UV index in May - Amarillo, 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 2).

Average cloud cover in May
Amarillo, TX

Average cloud cover in May - Amarillo, TX
  • Average cloud cover in May: 18

The month with the most cloud cover is February (Cloud cover 23).
The month with the least cloud cover is June (Cloud cover 14).

Average visibility in May
Amarillo, TX

Average visibility in May - Amarillo, TX
  • Average visibility in May: 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).

Amarillo, Texas, USA

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