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
The start of May brings a subtle shift in the average high-temperature, edging up from April's 74.8°F (23.8°C) to a still moderately hot 82.2°F (27.9°C). Petersburg experiences a substantial decline from the daytime high temperatures in May, settling on an average low of 60.1°F (15.6°C).Heat index
For May, the heat index is estimated at 82.4°F (28°C). Persistent activity under exposure might lead to a feeling of weariness, with subsequent heat cramps.In terms of the heat index, values are set with light wind and shade conditions in mind. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to 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 Petersburg, the average relative humidity in May is 42%.Rainfall
In Petersburg, in May, during 9.3 rainfall days, 1.97" (50mm) of precipitation is typically accumulated. Throughout the year, in Petersburg, there are 86.7 rainfall days, and 14.21" (361mm) of precipitation is accumulated.Snowfall
In Petersburg, snow does not fall in May through September.Daylight
In Petersburg, Texas, the average length of the day in May is 13h and 56min.On the first day of the month, sunrise is at 6:56 am and sunset at 8:30 pm. On the last day of May, sunrise is at 6:36 am and sunset at 8:51 pm CDT.
Sunshine
In May, the average sunshine in Petersburg is 10.9h.UV index
The months with the highest UV index in Petersburg are May through July, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 7 during May leads to these advisories:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the temperature in May in Petersburg?
What is the average humidity in May in Petersburg?
How much does it rain in Petersburg in May?
When it does not snow in Petersburg?
Does it snow in Petersburg in May?
How many hours of daylight does Petersburg have in May?
When is the sunrise / sunset in May in Petersburg?
How long on average sun shines in May in Petersburg?
When is the highest UV index in Petersburg?
How high is the UV index in May in Petersburg?
Average temperature in May
Petersburg, TX
- Average high temperature in May: 82.2°F
The warmest months (with the highest average high temperature) are June, July and August (91.9°F).
The month with the lowest average high temperature is December (52.2°F).
- Average low temperature in May: 60.1°F
The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (33.1°F).
Average pressure in May
Petersburg, TX
- Average pressure in May: 29.85"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in May
Petersburg, TX
- Average wind speed in May: 12.5mph
The windiest month (with the highest average wind speed) is April (13.2mph).
The calmest month (with the lowest average wind speed) is August (9.4mph).
Average humidity in May
Petersburg, TX
- Average humidity in May: 42%
The month with the highest relative humidity is September (58%).
The month with the lowest relative humidity is April (39%).
Average rainfall in May
Petersburg, TX
- Average rainfall in May: 1.97"
The wettest month (with the highest rainfall) is September (2.2").
The driest month (with the least rainfall) is February (0.35").
Average rainfall days in May
Petersburg, TX
- Average rainfall days in May: 9.3 days
The month with the highest number of rainy days is September (12.7 days).
The month with the least rainy days is November (3 days).
Average snowfall in May
Petersburg, TX
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Petersburg, TX
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is December (2.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Petersburg, TX
- Average daylight in May: 13h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in May: 10h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 42min).
The months with the least sunshine are November and December (Average sunshine: 6h and 54min).
Average sunshine days in May
Petersburg, TX
- Average sunshine days in May: 18.7 days
The month with the most sunshine days is January (27 days).
The month with the least sunshine days is September (14.9 days).
Average UV index in May
Petersburg, TX
- Average UV index in May: 7
The months with the highest UV index are May, June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in May
Petersburg, TX
- Average cloud cover in May: 19
The month with the most cloud cover is September (Cloud cover 23).
The month with the least cloud cover is June (Cloud cover 14).
Average visibility in May
Petersburg, 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).
Petersburg, Texas, USA
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