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 average high-temperature mildly increases in May, edging from a pleasant 69.4°F (20.8°C) in April to a warm 77.5°F (25.3°C). During May, Saint Johns observes a consistent average nighttime temperature of 58.5°F (14.7°C).Humidity
In Saint Johns, the average relative humidity in May is 77%.Rainfall
In Saint Johns, during May, the rain falls for 12.7 days and regularly aggregates up to 1.06" (27mm) of precipitation. In Saint Johns, during the entire year, the rain falls for 123.1 days and collects up to 12.76" (324mm) of precipitation.Snowfall
In Saint Johns, Tennessee, snow does not fall in April through October.Daylight
In May, the average length of the day is 14h and 5min.On the first day of the month, sunrise is at 5:51 am and sunset at 7:32 pm. On the last day of May, in Saint Johns, Tennessee, sunrise is at 5:29 am and sunset at 7:55 pm CDT.
Sunshine
The average sunshine in May in Saint Johns is 9.5h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 6 during May leads to these instructions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Frequently asked questions
What are May temperatures in Saint Johns?
What is the average humidity in May in Saint Johns?
How much does it rain in Saint Johns in May?
When it does not snow in Saint Johns?
How many hours of daylight does Saint Johns have in May?
When is the sunrise / sunset in May in Saint Johns?
How long on average sun shines in May in Saint Johns?
What is the month with the highest UV index in Saint Johns?
What is the UV index intensity in May in Saint Johns?
Average temperature in May
Saint Johns, TN
- Average high temperature in May: 77.5°F
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in May: 58.5°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).
Average pressure in May
Saint Johns, TN
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in May
Saint Johns, TN
- Average wind speed in May: 6mph
The windiest month (with the highest average wind speed) is February (8mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in May
Saint Johns, TN
- Average humidity in May: 77%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (74%).
Average rainfall in May
Saint Johns, TN
- Average rainfall in May: 1.06"
The wettest month (with the highest rainfall) is February (1.5").
The driest month (with the least rainfall) is September (0.39").
Average rainfall days in May
Saint Johns, TN
- Average rainfall days in May: 12.7 days
The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is November (7.3 days).
Average snowfall in May
Saint Johns, TN
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Saint Johns, TN
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Saint Johns, TN
- Average daylight in May: 14h and 1min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in May: 9h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in May
Saint Johns, TN
- Average sunshine days in May: 15.1 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in May
Saint Johns, TN
- Average UV index in May: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in May
Saint Johns, TN
- Average cloud cover in May: 36
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in May
Saint Johns, TN
- 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).
Saint Johns, Tennessee, USA
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