May weather forecastCastell Springs, TN
May
Weather in May
May, the last month of the spring in Castell Springs, is a moderately hot month, with an average temperature varying between 53.2°F (11.8°C) and 74.8°F (23.8°C).Temperature
With the onset of May, the average high-temperature subtly transitions from a comfortable 66.4°F (19.1°C) in April to a moderately hot 74.8°F (23.8°C). A marked difference from the daytime temperatures, Castell Springs's nighttime temperature falls to an average low of 53.2°F (11.8°C) in May.Humidity
The average relative humidity in May is 77%.Rainfall
In Castell Springs, in May, it is raining for 19.5 days, with typically 3.11" (79mm) of accumulated precipitation. Throughout the year, there are 188.6 rainfall days, and 32.87" (835mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall in Castell Springs.Daylight
In May, the average length of the day is 14h and 7min.On the first day of the month, sunrise is at 6:37 am and sunset at 8:19 pm. On the last day of May, in Castell Springs, Tennessee, sunrise is at 6:15 am and sunset at 8:43 pm EDT.
Sunshine
In Castell Springs, Tennessee, the average sunshine in May is 10h.UV index
The months with the highest UV index in Castell Springs are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum daily UV index of 6 during May morphs into the following directions:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. 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. Always opt for UVA and UVB-resistant sunglasses on radiant days. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Castell Springs, TN
- Average high temperature in May: 74.8°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (43.2°F).
- Average low temperature in May: 53.2°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).
Average pressure in May
Castell Springs, TN
- Average pressure in May: 30.03"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in May
Castell Springs, TN
- Average wind speed in May: 5.2mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in May
Castell Springs, TN
- Average humidity in May: 77%
The month with the highest relative humidity is December (79%).
The months with the lowest relative humidity are July and August (74%).
Average rainfall in May
Castell Springs, TN
- Average rainfall in May: 3.11"
The wettest month (with the highest rainfall) is February (3.39").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in May
Castell Springs, TN
- Average rainfall days in May: 19.5 days
The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is November (11.4 days).
Average snowfall in May
Castell Springs, TN
- Average snowfall in May: 0"
The month with the highest snowfall is December (4.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Castell Springs, TN
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Castell Springs, TN
- Average daylight in May: 14h and 6min
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 42min).
- Average sunshine in May: 10h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in May
Castell Springs, TN
- Average sunshine days in May: 9.4 days
The month with the most sunshine days is October (16.7 days).
The month with the least sunshine days is July (8.8 days).
Average UV index in May
Castell Springs, 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
Castell Springs, TN
- Average cloud cover in May: 33
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in May
Castell Springs, TN
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).





