May weather forecastForney, TX
May
Weather in May
The last month of the spring, May, is another warm month in Forney, Texas, with an average temperature ranging between max 81°F (27.2°C) and min 63.7°F (17.6°C).Temperature
In Forney, the average high-temperature in May slightly rises, from a warm 73.9°F (23.3°C) in April, to a still moderately hot 81°F (27.2°C). In Forney, the May nights cool down to an average low of 63.7°F (17.6°C).Heat index
During May, the heat index is computed to be a tropical 86°F (30°C). Long-lasting exposure and activity potentially induce a sense of weariness, with the risk of heat cramps.Be informed that the heat index values are oriented around shady conditions and gentle breezes. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', shows a temperature sensation when both heat and moisture conditions are combined. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
Humidity
With an average relative humidity of 76%, May is the most humid month in Forney.Rainfall
In May, the rain falls for 14.9 days. Throughout May, 3.9" (99mm) of precipitation is accumulated. Throughout the year, in Forney, Texas, there are 141.8 rainfall days, and 31.54" (801mm) of precipitation is accumulated.Snowfall
In Forney, Texas, snow does not fall in March through December.Daylight
In May, the average length of the day is 13h and 52min.On the first day of the month, sunrise is at 6:37 am and sunset at 8:07 pm. On the last day of May, in Forney, sunrise is at 6:18 am and sunset at 8:28 pm CDT.
Sunshine
The average sunshine in May is 8.6h.UV index
In May, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 6 during May translates into these guidelines:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Forney, TX
- Average high temperature in May: 81°F
The warmest month (with the highest average high temperature) is August (95.2°F).
The month with the lowest average high temperature is January (54.3°F).
- Average low temperature in May: 63.7°F
The month with the highest average low temperature is August (75.2°F).
The coldest month (with the lowest average low temperature) is January (38.7°F).
Average pressure in May
Forney, 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 (29.91"Hg).
Average wind speed in May
Forney, TX
- Average wind speed in May: 8.6mph
The windiest month (with the highest average wind speed) is March (9.6mph).
The calmest month (with the lowest average wind speed) is September (6.5mph).
Average humidity in May
Forney, TX
- Average humidity in May: 76%
The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (60%).
Average rainfall in May
Forney, TX
- Average rainfall in May: 3.9"
The wettest month (with the highest rainfall) is October (4.25").
The driest month (with the least rainfall) is February (1.81").
Average rainfall days in May
Forney, TX
- Average rainfall days in May: 14.9 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is January (7.7 days).
Average snowfall in May
Forney, TX
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.75").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in May
Forney, TX
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (1.1 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
Forney, TX
- Average daylight in May: 13h and 54min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in May: 8h and 36min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in May
Forney, TX
- Average sunshine days in May: 13.9 days
The month with the most sunshine days is January (21.6 days).
The month with the least sunshine days is September (13.7 days).
Average UV index in May
Forney, TX
- Average UV index in May: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in May
Forney, TX
- Average cloud cover in May: 37
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in May
Forney, 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).





