May weather forecastGalena Park, TX
May
Weather in May
The last month of the spring, May, is another warm month in Galena Park, Texas, with temperature in the range of an average high of 84.4°F (29.1°C) and an average low of 70.3°F (21.3°C).Temperature
May's arrival coincides with a subtle temperature rise, moving from April's moderately hot 77.7°F (25.4°C) to a still warm 84.4°F (29.1°C). Galena Park throughout May, experiences an average nighttime temperature of 70.3°F (21.3°C).Heat index
May's heat index is evaluated at a hot 93.2°F (34°C). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.Observations indicate that the heat index values are for shady locations with light wind. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', offers an insight into how hot it feels when we factor in moisture content. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Humidity
In May, the average relative humidity in Galena Park is 75%.Rainfall
In May, in Galena Park, Texas, the rain falls for 15.2 days. Throughout May, 4.96" (126mm) of precipitation is accumulated. In Galena Park, during the entire year, the rain falls for 190.8 days and collects up to 41.93" (1065mm) of precipitation.Snowfall
February through November are months without snowfall in Galena Park.Daylight
In May, the average length of the day in Galena Park is 13h and 40min.On the first day of the month, sunrise is at 6:37 am and sunset at 7:58 pm. On the last day of May, sunrise is at 6:20 am and sunset at 8:16 pm CDT.
Sunshine
In Galena Park, the average sunshine in May is 9.7h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index, 7 during May, leads to the following recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Galena Park, TX
- Average high temperature in May: 84.4°F
The warmest month (with the highest average high temperature) is August (92.8°F).
The month with the lowest average high temperature is January (60.6°F).
- Average low temperature in May: 70.3°F
The month with the highest average low temperature is August (78.4°F).
The coldest month (with the lowest average low temperature) is January (46.9°F).
Average pressure in May
Galena Park, TX
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Galena Park, TX
- Average wind speed in May: 8.6mph
The windiest month (with the highest average wind speed) is April (9.2mph).
The calmest months (with the lowest average wind speed) are August and September (6.5mph).
Average humidity in May
Galena Park, TX
- Average humidity in May: 75%
The month with the highest relative humidity is February (79%).
The months with the lowest relative humidity are August and October (71%).
Average rainfall in May
Galena Park, TX
- Average rainfall in May: 4.96"
The wettest month (with the highest rainfall) is September (5.94").
The driest month (with the least rainfall) is February (1.89").
Average rainfall days in May
Galena Park, TX
- Average rainfall days in May: 15.2 days
The months with the highest number of rainy days are August and September (21.3 days).
The month with the least rainy days is January (12.3 days).
Average snowfall in May
Galena Park, TX
- Average snowfall in May: 0"
The months with the highest snowfall are January and December (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Galena Park, TX
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (0.3 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
Galena Park, TX
- Average daylight in May: 13h and 42min
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: 9h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in May
Galena Park, TX
- Average sunshine days in May: 13.2 days
The month with the most sunshine days is January (16.4 days).
The months with the least sunshine days are August and September (6.9 days).
Average UV index in May
Galena Park, TX
- 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, February, November and December (UV index 4).
Average cloud cover in May
Galena Park, TX
- Average cloud cover in May: 35
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are June, July and August (Cloud cover 27).
Average visibility in May
Galena Park, 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).





