May weather forecast
Callahan, FL

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Weather in May

The last month of the spring, May, is another warm month in Callahan, Florida, with temperature in the range of an average low of 67.6°F (19.8°C) and an average high of 85.1°F (29.5°C).

Temperature

May introduces a minor temperature shift, with average high-temperatures adjusting from April's moderately hot 79.7°F (26.5°C) to a still warm 85.1°F (29.5°C). An average minimum temperature of 67.6°F (19.8°C) marks the month of May.

Heat index

Throughout May, the heat index is appraised at a hot 93.2°F (34°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.

Humidity

In Callahan, the average relative humidity in May is 71%.

Rainfall

In May, in Callahan, the rain falls for 13 days. Throughout May, 2.2" (56mm) of precipitation is accumulated. Throughout the year, in Callahan, there are 165.4 rainfall days, and 28.39" (721mm) of precipitation is accumulated.

Snowfall

March through December are months without snowfall in Callahan.

Daylight

In Callahan, the average length of the day in May is 13h and 43min.
On the first day of the month, sunrise is at 6:42 am and sunset at 8:05 pm. On the last day of May, in Callahan, sunrise is at 6:25 am and sunset at 8:24 pm EDT.

Sunshine

In May, the average sunshine is 10.5h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index in Callahan, Florida. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 7 during May translates into the following guidance:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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Frequently asked questions

Is it hot in Callahan during May?

In Callahan, in May, the average high-temperature is 85.1°F (29.5°C), and the average low-temperature is 67.6°F (19.8°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in May is appraised at 93.2°F (34°C).

What is the average humidity in May in Callahan?

The average relative humidity in May in Callahan is 71%.

How many days does it rain in May in Callahan?

In Callahan, Florida, during May, the rain falls for 13 days and regularly aggregates up to 2.2" (56mm) of precipitation.

When it does not snow in Callahan?

March through December are months without snowfall in Callahan, Florida.

How many hours of daylight does Callahan have in May?

In Callahan, Florida, the average day length in May is 13h and 43min.

What time are sunrise and sunset in May in Callahan?

On the first day of May in Callahan, sunrise is at 6:42 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 8:24 pm EDT.

How many hours of sunshine does Callahan have in May?

The average sunshine duration in May in Callahan, Florida, is 10.5h.

What are the months with the highest UV index in Callahan?

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

What is the UV index intensity in May in Callahan?

In May, the average daily maximum UV index in Callahan, Florida, is 7. A UV Index 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 days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Callahan, FL

Average temperature in May - Callahan, FL
  • Average high temperature in May: 85.1°F

The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (63°F).

  • Average low temperature in May: 67.6°F

The month with the highest average low temperature is August (76.5°F).
The coldest month (with the lowest average low temperature) is January (46.8°F).

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Average pressure in May
Callahan, FL

Average pressure in May - Callahan, FL
  • Average pressure in May: 30.02"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).

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Average wind speed in May
Callahan, FL

Average wind speed in May - Callahan, FL
  • Average wind speed in May: 6.2mph

The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

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Average humidity in May
Callahan, FL

Average humidity in May - Callahan, FL
  • Average humidity in May: 71%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is March (70%).

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Average rainfall in May
Callahan, FL

Average rainfall in May - Callahan, FL
  • Average rainfall in May: 2.2"

The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (1.3").

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Average rainfall days in May
Callahan, FL

Average rainfall days in May - Callahan, FL
  • Average rainfall days in May: 13 days

The month with the highest number of rainy days is August (22.6 days).
The month with the least rainy days is November (8.7 days).

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Average snowfall days in May
Callahan, FL

Average snowfall days in May - Callahan, FL
  • Average snowfall days in May: 0 days

The months with the highest number of snowfall days are January and February (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight in May /
Average sunshine in May
Callahan, FL

Average daylight in May / Average sunshine in May - Callahan, FL
  • Average daylight in May: 13h and 4min

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

  • Average sunshine in May: 10h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

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Average sunshine days in May
Callahan, FL

Average sunshine days in May - Callahan, FL
  • Average sunshine days in May: 16.8 days

The month with the most sunshine days is January (19.9 days).
The month with the least sunshine days is August (6.8 days).

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Average UV index in May
Callahan, FL

Average UV index in May - Callahan, FL
  • Average UV index in May: 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 and December (UV index 4).

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Average cloud cover in May
Callahan, FL

Average cloud cover in May - Callahan, FL
  • Average cloud cover in May: 28

The month with the most cloud cover is December (Cloud cover 41).
The month with the least cloud cover is May (Cloud cover 28).

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Average visibility in May
Callahan, FL

Average visibility in May - Callahan, FL
  • 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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Callahan, Florida, USA

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