May weather forecastWatertown, TN
May
Weather in May
May, the last month of the spring in Watertown, is a moderately hot month, with an average temperature ranging between max 77.4°F (25.2°C) and min 58.1°F (14.5°C).Temperature
May comes with a subtle rise, with the average high-temperature adjusting from an agreeable 68.5°F (20.3°C) in April to a moderately hot 77.4°F (25.2°C). Watertown experiences a steady low-temperature of 58.1°F (14.5°C) throughout May.Humidity
The average relative humidity in May is 78%.Rainfall
In May, the rain falls for 17.9 days. Throughout May, 3.35" (85mm) of precipitation is accumulated. In Watertown, Tennessee, during the entire year, the rain falls for 182.4 days and collects up to 39.8" (1011mm) of precipitation.Snowfall
In Watertown, snow does not fall in May through October.Daylight
In May, the average length of the day is 14h and 6min.On the first day of May, sunrise is at 5:50 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 5:28 am and sunset at 7:55 pm CDT.
Sunshine
In May, the average sunshine is 9.5h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: During May, 6 as the daily maximum UV index converts into the following advice:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Watertown, TN
- Average high temperature in May: 77.4°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (43.9°F).
- Average low temperature in May: 58.1°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure in May
Watertown, TN
- Average pressure in May: 30"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
Watertown, TN
- Average wind speed in May: 6mph
The windiest month (with the highest average wind speed) is February (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.4mph).
Average humidity in May
Watertown, TN
- Average humidity in May: 78%
The months with the highest relative humidity are March and December (79%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in May
Watertown, TN
- Average rainfall in May: 3.35"
The wettest month (with the highest rainfall) is July (4.92").
The driest month (with the least rainfall) is November (2.24").
Average rainfall days in May
Watertown, TN
- Average rainfall days in May: 17.9 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is November (11 days).
Average snowfall in May
Watertown, TN
- Average snowfall in May: 0"
The month with the highest snowfall is January (1.02").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Watertown, TN
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (5.4 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
Watertown, 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 48min).
- Average sunshine in May: 9h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in May
Watertown, TN
- Average sunshine days in May: 10.8 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is July (9.2 days).
Average UV index in May
Watertown, 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
Watertown, TN
- Average cloud cover in May: 37
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
Watertown, 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).





