May weather forecastNew Castle, IN
May
Weather in May
May transfigures the weather in New Castle, Indiana, into full-blown spring mode. May arrives, bringing with it moderate temperatures that reach up to 71.2°F (21.8°C) during the day and drop to 54.7°F (12.6°C) at night. The days are longer, presenting an opportunity for increased outdoor activity. The blooms reach their peak, with parks and gardens resembling vibrant watercolor paintings. Thus, May paints a picturesque setting all around the city.Temperature
As New Castle, Indiana, enters May, the average high-temperature increases from the a moderate 60.4°F (15.8°C) of April to a pleasant 71.2°F (21.8°C). May brings New Castle a consistent average low-temperature of 54.7°F (12.6°C).Humidity
In May, the average relative humidity in New Castle is 80%.Rainfall
May is the month with the most rainfall in New Castle. Rain falls for 19.7 days and accumulates 3.9" (99mm) of precipitation.Snowfall
May through September are months without snowfall in New Castle.Daylight
In May, the average length of the day in New Castle, Indiana, is 14h and 24min.On the first day of May in New Castle, sunrise is at 6:40 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 9:03 pm EDT.
Sunshine
The average sunshine in May in New Castle is 8.6h.UV index
May through July, with an average maximum UV index of 6, are months with the highest UV index in New Castle. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high UV index of 6 in May translates into the following recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Experience reduced UV exposure by about half when donning a wide-brim hat. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
New Castle, IN
- Average high temperature in May: 71.2°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in May: 54.7°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in May
New Castle, IN
- Average pressure in May: 29.97"Hg
The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
New Castle, IN
- Average wind speed in May: 8.2mph
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 (6mph).
Average humidity in May
New Castle, IN
- Average humidity in May: 80%
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in May
New Castle, IN
- Average rainfall in May: 3.9"
The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is February (1.85").
Average rainfall days in May
New Castle, IN
- Average rainfall days in May: 19.7 days
The month with the highest number of rainy days is May (19.7 days).
The month with the least rainy days is February (8.8 days).
Average snowfall in May
New Castle, IN
- Average snowfall in May: 0"
The month with the highest snowfall is January (3.31").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
New Castle, IN
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
New Castle, IN
- Average daylight in May: 14h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in May: 8h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in May
New Castle, IN
- Average sunshine days in May: 9.1 days
The months with the most sunshine days are October and November (16.1 days).
The month with the least sunshine days is May (9.1 days).
Average UV index in May
New Castle, IN
- Average UV index in May: 6
The months with the highest UV index are May, June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
New Castle, IN
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in May
New Castle, 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).
