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
With the onset of May, Knox's weather sees a temperature rise, transitioning from a moderate 57.6°F (14.2°C) in April to a pleasant 70°F (21.1°C). The temperature in Knox, Indiana, dips to an average of 53.1°F (11.7°C) during May nights.Humidity
In Knox, the average relative humidity in May is 78%.Rainfall
May is the month with the most rainfall in Knox. Rain falls for 20.7 days and accumulates 4.45" (113mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Knox. May is the last month it regularly snows in Knox, Indiana. During 0.2 snowfall days, in May, Knox aggregates 0.04" (1mm) of snow. Throughout the year, there are 51.1 snowfall days, and 17.68" (449mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 31min.On the first day of May, sunrise is at 5:42 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 5:15 am and sunset at 8:12 pm CDT.
Sunshine
In Knox, the average sunshine in May is 8.7h.UV index
The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A daily maximum UV index of 5 in May translates into the following instructions:
Act with care - The suggestion to avoid sunburn is emphasized. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Knox in May?
What is the average humidity in May in Knox?
What is the rainiest month in Knox?
How much does it rain in Knox in May?
What is the last month it snows in Knox?
What is the average length of the day in May in Knox?
When is the sunrise / sunset in May in Knox?
How long on average sun shines in May in Knox?
What is the UV index intensity in May in Knox?
Average temperature in May
Knox, IN
- Average high temperature in May: 70°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in May: 53.1°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in May
Knox, IN
- Average pressure in May: 29.97"Hg
The months with the highest atmospheric pressure are January and November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Knox, IN
- Average wind speed in May: 8.3mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in May
Knox, IN
- Average humidity in May: 78%
The months with the highest relative humidity are January, February and July (84%).
The month with the lowest relative humidity is October (74%).
Average rainfall in May
Knox, IN
- Average rainfall in May: 4.45"
The wettest month (with the highest rainfall) is May (4.45").
The driest month (with the least rainfall) is January (1.85").
Average rainfall days in May
Knox, IN
- Average rainfall days in May: 20.7 days
The month with the highest number of rainy days is May (20.7 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in May
Knox, IN
- Average snowfall in May: 0.04"
The month with the highest snowfall is February (5.04").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Knox, IN
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Knox, IN
- Average daylight in May: 14h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 8h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in May
Knox, IN
- Average sunshine days in May: 8.3 days
The month with the most sunshine days is November (14.6 days).
The month with the least sunshine days is June (7.8 days).
Average UV index in May
Knox, IN
- Average UV index in May: 5
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Knox, IN
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in May
Knox, IN
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Knox, Indiana, USA
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