April weather forecastRock Castle, TN
April
Weather in April
April in Rock Castle, Tennessee, is a pleasant spring month, with an average temperature varying between 48.7°F (9.3°C) and 68°F (20°C).Temperature
An increase in the average high-temperature marks April, moving from March's moderate 57.6°F (14.2°C) to a pleasant 68°F (20°C). Nighttime temperature dips to a mean of 48.7°F (9.3°C) during April.Humidity
In Rock Castle, the average relative humidity in April is 76%.Rainfall
In Rock Castle, during April, the rain falls for 14.2 days and regularly aggregates up to 3.94" (100mm) of precipitation. Throughout the year, there are 170.4 rainfall days, and 37.99" (965mm) of precipitation is accumulated.Snowfall
Months with snowfall in Rock Castle are January through April, November and December. April is the last month it regularly snows. During 0.2 snowfall days, in April, Rock Castle aggregates 0.08" (2mm) of snow. In Rock Castle, during the entire year, snow falls for 13.4 days and aggregates up to 4.29" (109mm) of snow.Daylight
In Rock Castle, the average length of the day in April is 13h and 8min.On the first day of April in Rock Castle, sunrise is at 6:27 am and sunset at 7:04 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 7:29 pm CDT.
Sunshine
In April, the average sunshine in Rock Castle is 9.2h.UV index
In April, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: The UV index of 5 during April translates into the following guidance:
Preventative actions are necessary - Recommendations to ward off sunburn are given. To guard against the harmful effects of the Sun, minimize exposure during midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Rock Castle, TN
- Average high temperature in April: 68°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (43.9°F).
- Average low temperature in April: 48.7°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure in April
Rock Castle, TN
- Average pressure in April: 29.99"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in April
Rock Castle, TN
- Average wind speed in April: 7.1mph
The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in April
Rock Castle, TN
- Average humidity in April: 76%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is November (75%).
Average rainfall in April
Rock Castle, TN
- Average rainfall in April: 3.94"
The wettest month (with the highest rainfall) is February (4.09").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in April
Rock Castle, TN
- Average rainfall days in April: 14.2 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in April
Rock Castle, TN
- Average snowfall in April: 0.08"
The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Rock Castle, TN
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is January (3.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Rock Castle, TN
- Average daylight in April: 13h 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 48min).
- Average sunshine in April: 9h and 12min
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 24min).
Average sunshine days in April
Rock Castle, TN
- Average sunshine days in April: 14.1 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in April
Rock Castle, TN
- Average UV index in April: 5
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 April
Rock Castle, TN
- Average cloud cover in April: 38
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 April
Rock Castle, TN
- Average visibility in April: 6mi
The months with the highest visibility are February, April, June, October, November and December (6mi).
The months with the lowest visibility are January, March, May, July, August and September (5mi).
