March weather forecastSignal Mountain, TN
March
Weather in March
The first month of the spring, March, is a refreshing month in Signal Mountain, Tennessee, with an average temperature varying between 41.4°F (5.2°C) and 58.5°F (14.7°C).Temperature
March brings a slight increase in the average high-temperature, progressing from a fresh 50.4°F (10.2°C) in February to a moderate 58.5°F (14.7°C). March nights observe an average temperature dip to a cold 41.4°F (5.2°C).Humidity
The average relative humidity in March is 79%.Rainfall
In Signal Mountain, in March, it is raining for 16.3 days, with typically 3.94" (100mm) of accumulated precipitation. Throughout the year, there are 187.2 rainfall days, and 44.09" (1120mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Signal Mountain, in March, snow falls for 2.2 days, with typically accumulated 0.47" (12mm) of snow. In Signal Mountain, during the entire year, snow falls for 17.1 days and aggregates up to 5.08" (129mm) of snow.Daylight
The average length of the day in March is 11h and 59min.On the first day of March, sunrise is at 7:09 am and sunset at 6:37 pm EST. On the last day of the month, sunrise is at 7:28 am and sunset at 8:02 pm EDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from EDT to EST.
Sunshine
The average sunshine in March is 6.6h.UV index
In March, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In March, the average maximum UV index of 4 translates into the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Signal Mountain, TN
- Average high temperature in March: 58.5°F
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in March: 41.4°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in March
Signal Mountain, TN
- Average pressure in March: 30.1"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in March
Signal Mountain, TN
- Average wind speed in March: 6.4mph
The windiest month (with the highest average wind speed) is February (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in March
Signal Mountain, TN
- Average humidity in March: 79%
The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are June, July, August, September, October and November (76%).
Average rainfall in March
Signal Mountain, TN
- Average rainfall in March: 3.94"
The wettest month (with the highest rainfall) is December (4.53").
The driest month (with the least rainfall) is September (2.76").
Average rainfall days in March
Signal Mountain, TN
- Average rainfall days in March: 16.3 days
The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is November (10.5 days).
Average snowfall in March
Signal Mountain, TN
- Average snowfall in March: 0.47"
The month with the highest snowfall is February (2.01").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in March
Signal Mountain, TN
- Average snowfall days in March: 2.2 days
The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in March /
Average sunshine in March
Signal Mountain, TN
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in March: 6h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in March
Signal Mountain, TN
- Average sunshine days in March: 11.4 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is July (7.7 days).
Average UV index in March
Signal Mountain, TN
- Average UV index in March: 4
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 March
Signal Mountain, TN
- Average cloud cover in March: 49
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in March
Signal Mountain, TN
- Average visibility in March: 5mi
The months with the highest visibility are June, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September and December (5mi).





