May weather forecast
Grandfalls, TX

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Weather in May

May, the last month of the spring in Grandfalls, is a hot month, with an average temperature varying between 65.8°F (18.8°C) and 89.2°F (31.8°C).

Temperature

As May begins, there's a slight increase in the average high-temperature, moving from a moderately hot 82.2°F (27.9°C) in April to a tropical 89.2°F (31.8°C). May nights are characterized by a notable drop from daytime highs, with an average low-temperature of 65.8°F (18.8°C).

Humidity

In May, the average relative humidity is 36%.

Rainfall

The month with the most rainfall in Grandfalls is May, when the rain falls for 7.5 days and typically aggregates up to 1.1" (28mm) of precipitation.

Snowfall

In Grandfalls, snow does not fall in April through October.

Daylight

The average length of the day in May is 13h and 46min.
On the first day of May in Grandfalls, sunrise is at 7:05 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 8:50 pm CDT.

Sunshine

In Grandfalls, the average sunshine in May is 10.9h.

UV index

In May, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The daily maximum UV index of 7 in May interprets into the following advice:
Resist extreme sun exposure. Guarding against solar damage is essential. 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. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
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Frequently asked questions

How hot is May in Grandfalls?

Grandfalls in May has an average high-temperature of 89.2°F (31.8°C) and an average low-temperature of 65.8°F (18.8°C).

What is the average humidity in May in Grandfalls?

In May, the average relative humidity is 36%.

What is the rainiest month in Grandfalls?

May is the month with the most rainfall in Grandfalls. Rain falls for 7.5 days and accumulates 1.1" (28mm) of precipitation.

How many days does it rain in May in Grandfalls?

In Grandfalls, Texas, in May, it is raining for 7.5 days, with typically 1.1" (28mm) of accumulated precipitation.

When it does not snow in Grandfalls?

April through October are months without snowfall in Grandfalls, Texas.

How many hours of daylight does Grandfalls have in May?

In May, the average day length is 13h and 46min.

What time are sunrise and sunset in May in Grandfalls?

On the first day of May in Grandfalls, sunrise is at 7:05 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 8:50 pm CDT.

How long on average sun shines in May in Grandfalls?

In May, the average sunshine duration in Grandfalls is 10.9h.

How high is the UV index in May in Grandfalls?

In Grandfalls, the average daily maximum UV index in May is 7. A UV Index estimate of 6 to 7 represents a high health threat 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 May
Grandfalls, TX

Average temperature in May - Grandfalls, TX
  • Average high temperature in May: 89.2°F

The warmest month (with the highest average high temperature) is June (96.4°F).
The month with the lowest average high temperature is December (58.3°F).

  • Average low temperature in May: 65.8°F

The month with the highest average low temperature is August (77°F).
The coldest month (with the lowest average low temperature) is January (39.4°F).

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Average pressure in May
Grandfalls, TX

Average pressure in May - Grandfalls, TX
  • Average pressure in May: 29.85"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed in May
Grandfalls, TX

Average wind speed in May - Grandfalls, TX
  • Average wind speed in May: 12.6mph

The windiest month (with the highest average wind speed) is June (13.2mph).
The calmest month (with the lowest average wind speed) is December (8.9mph).

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Average humidity in May
Grandfalls, TX

Average humidity in May - Grandfalls, TX
  • Average humidity in May: 36%

The months with the highest relative humidity are September and December (49%).
The month with the lowest relative humidity is April (31%).

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Average rainfall in May
Grandfalls, TX

Average rainfall in May - Grandfalls, TX
  • Average rainfall in May: 1.1"

The wettest month (with the highest rainfall) is May (1.1").
The driest month (with the least rainfall) is February (0.08").

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Average rainfall days in May
Grandfalls, TX

Average rainfall days in May - Grandfalls, TX
  • Average rainfall days in May: 7.5 days

The month with the highest number of rainy days is September (10 days).
The month with the least rainy days is February (1.9 days).

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Average snowfall in May
Grandfalls, TX

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

The months with the highest snowfall are November and December (0.31").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in May
Grandfalls, TX

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

The month with the highest number of snowfall days is December (1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in May / Average sunshine in May - Grandfalls, TX
  • Average daylight in May: 13h and 5min

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 May: 10h and 5min

The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).

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Average sunshine days in May
Grandfalls, TX

Average sunshine days in May - Grandfalls, TX
  • Average sunshine days in May: 20.2 days

The month with the most sunshine days is January (27.8 days).
The month with the least sunshine days is September (18.1 days).

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Average UV index in May
Grandfalls, TX

Average UV index in May - Grandfalls, TX
  • Average UV index in May: 7

The month with the highest UV index is July (UV index 8).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in May
Grandfalls, TX

Average cloud cover in May - Grandfalls, TX
  • Average cloud cover in May: 14

The month with the most cloud cover is September (Cloud cover 20).
The month with the least cloud cover is June (Cloud cover 12).

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Average visibility in May
Grandfalls, TX

Average visibility in May - Grandfalls, 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).

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Grandfalls, Texas, USA

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