Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May introduces a marginal temperature uplift, with average high-temperatures adjusting from April's warm 77.9°F (25.5°C) to a still moderately hot 84.4°F (29.1°C). Rock Island, during the month of May, experiences an average low-temperature of 67.3°F (19.6°C).Heat index
May's mean heat index is appraised at a torrid 95°F (35°C). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.Be advised, the heat index considers values for conditions in shade and with a light breeze. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. 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 remain especially vital for babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. The body is at risk of dehydration and related complications when it fails to shed excessive heat.
Humidity
The months with the highest humidity are March, May and June, with an average relative humidity of 78%.Rainfall
May is the month with the most rainfall. Rain falls for 16.1 days and accumulates 4.17" (106mm) of precipitation.Snowfall
March through November are months without snowfall in Rock Island.Daylight
In Rock Island, the average length of the day in May is 13h and 38min.On the first day of May, sunrise is at 6:43 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 8:21 pm CDT.
Sunshine
In Rock Island, the average sunshine in May is 8.4h.UV index
In Rock Island, the average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: An average UV index of 6 in May transforms into this advice:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Frequently asked questions
How hot does it get in Rock Island in May?
What is the most humid month in Rock Island?
What is the average humidity in May in Rock Island?
What is the wettest month in Rock Island?
How many days does it rain in May in Rock Island?
When it does not snow in Rock Island?
How many hours of daylight does Rock Island have in May?
When is the sunrise / sunset in May in Rock Island?
How many hours of sunshine does Rock Island have in May?
What is the UV index intensity in May in Rock Island?
Average temperature in May
Rock Island, TX
- Average high temperature in May: 84.4°F
The warmest month (with the highest average high temperature) is August (95°F).
The month with the lowest average high temperature is January (60.4°F).
- Average low temperature in May: 67.3°F
The month with the highest average low temperature is August (75°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).
Average pressure in May
Rock Island, TX
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Rock Island, 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 (5.9mph).
Average humidity in May
Rock Island, TX
- Average humidity in May: 78%
The months with the highest relative humidity are March, May and June (78%).
The month with the lowest relative humidity is August (69%).
Average rainfall in May
Rock Island, TX
- Average rainfall in May: 4.17"
The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is February (1.34").
Average rainfall days in May
Rock Island, TX
- Average rainfall days in May: 16.1 days
The month with the highest number of rainy days is September (18.3 days).
The month with the least rainy days is January (10.4 days).
Average snowfall in May
Rock Island, TX
- Average snowfall in May: 0"
The months with the highest snowfall are January and December (0.12").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Rock Island, TX
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in May /
Average sunshine in May
Rock Island, 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 2min
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).
Average sunshine days in May
Rock Island, TX
- Average sunshine days in May: 12.1 days
The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is September (9.1 days).
Average UV index in May
Rock Island, 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).
Average cloud cover in May
Rock Island, 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).
Average visibility in May
Rock Island, 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).
Rock Island, Texas, USA
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