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 start of May brings a subtle rise in the average high-temperature, moving from a warm 73.9°F (23.3°C) in April to a still moderately hot 80.2°F (26.8°C). Throughout May, Jamestown witnesses a consistent average low-temperature of 64.9°F (18.3°C).Humidity
In Jamestown, the average relative humidity in May is 77%.Rainfall
In May, the rain falls for 16.8 days. Throughout May, 3.35" (85mm) of precipitation is accumulated. In Jamestown, during the entire year, the rain falls for 179.5 days and collects up to 40.79" (1036mm) of precipitation.Snowfall
March through November are months without snowfall.Daylight
The average length of the day in May is 13h and 53min.On the first day of May, sunrise is at 6:29 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 8:22 pm EDT.
Sunshine
In May, the average sunshine is 10.2h.UV index
In May, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.Note: The UV index of 6 during May leads to these advisories:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Jamestown in May?
What is the average humidity in May?
How much does it rain in May?
When it does not snow?
What is the average length of the day in May?
When are sunrise and sunset in May in Jamestown?
How long on average sun shines in May?
What is the UV index reading in May?
Average temperature in May
Jamestown, SC
- Average high temperature in May: 80.2°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (55.8°F).
- Average low temperature in May: 64.9°F
The month with the highest average low temperature is July (74.8°F).
The coldest month (with the lowest average low temperature) is January (40.8°F).
Average pressure in May
Jamestown, SC
- Average pressure in May: 30.03"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in May
Jamestown, SC
- Average wind speed in May: 6.8mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in May
Jamestown, SC
- Average humidity in May: 77%
The months with the highest relative humidity are August and December (78%).
The months with the lowest relative humidity are January and March (74%).
Average rainfall in May
Jamestown, SC
- Average rainfall in May: 3.35"
The wettest month (with the highest rainfall) is August (6.46").
The driest month (with the least rainfall) is January (1.46").
Average rainfall days in May
Jamestown, SC
- Average rainfall days in May: 16.8 days
The months with the highest number of rainy days are July and August (23.2 days).
The month with the least rainy days is November (8.9 days).
Average snowfall in May
Jamestown, SC
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.24").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Jamestown, SC
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in May /
Average sunshine in May
Jamestown, SC
- Average daylight in May: 13h and 5min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in May: 10h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in May
Jamestown, SC
- Average sunshine days in May: 11.3 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is July (5.5 days).
Average UV index in May
Jamestown, SC
- Average UV index in May: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in May
Jamestown, SC
- Average cloud cover in May: 30
The months with the most cloud cover are February and December (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in May
Jamestown, SC
- 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).
Jamestown, South Carolina, USA
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