May weather forecastNew Castle, CO
May
Weather in May
The last month of the spring, May, is a mild month in New Castle, Colorado, with an average temperature ranging between min 36.7°F (2.6°C) and max 60.6°F (15.9°C).Temperature
New Castle's weather in May presents a rise in the average high-temperature, moving from a frosty 49.1°F (9.5°C) in April to a moderate 60.6°F (15.9°C). A pronounced dip becomes evident during the nights in May as New Castle logs a consistent average temperature of 36.7°F (2.6°C).Humidity
The average relative humidity in May in New Castle is 53%.Rainfall
In New Castle, in May, it is raining for 10.9 days, with typically 0.98" (25mm) of accumulated precipitation. Throughout the year, in New Castle, there are 107.7 rainfall days, and 11.89" (302mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in New Castle. May is the last month it regularly snows. During 0.7 snowfall days, in May, New Castle aggregates 0.28" (7mm) of snow. In New Castle, during the entire year, snow falls for 58.6 days and aggregates up to 36.85" (936mm) of snow.Daylight
The average length of the day in May is 14h and 22min.On the first day of the month, sunrise is at 6:09 am and sunset at 8:04 pm. On the last day of May, in New Castle, Colorado, sunrise is at 5:44 am and sunset at 8:31 pm MDT.
Sunshine
In May, the average sunshine in New Castle is 11.3h.UV index
The average daily maximum UV index in May in New Castle is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: The average daily UV index of 4 in May transforms into the following instructions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Keep in mind! Snow's reflective quality can nearly 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, CO
- Average high temperature in May: 60.6°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 (30.6°F).
- Average low temperature in May: 36.7°F
The month with the highest average low temperature is July (50.4°F).
The coldest month (with the lowest average low temperature) is January (12°F).
Average pressure in May
New Castle, CO
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is May (29.93"Hg).
Average wind speed in May
New Castle, CO
- Average wind speed in May: 5.8mph
The windiest month (with the highest average wind speed) is June (6.2mph).
The calmest month (with the lowest average wind speed) is January (4.1mph).
Average humidity in May
New Castle, CO
- Average humidity in May: 53%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is June (43%).
Average rainfall in May
New Castle, CO
- Average rainfall in May: 0.98"
The wettest month (with the highest rainfall) is April (1.57").
The driest month (with the least rainfall) is September (0.51").
Average rainfall days in May
New Castle, CO
- Average rainfall days in May: 10.9 days
The month with the highest number of rainy days is April (14 days).
The month with the least rainy days is June (5.9 days).
Average snowfall in May
New Castle, CO
- Average snowfall in May: 0.28"
The month with the highest snowfall is February (8.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
New Castle, CO
- Average snowfall days in May: 0.7 days
The month with the highest number of snowfall days is January (13 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, CO
- Average daylight in May: 14h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in May: 11h and 18min
The months with the most sunshine are June, July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).
Average sunshine days in May
New Castle, CO
- Average sunshine days in May: 15.7 days
The month with the most sunshine days is June (20.7 days).
The month with the least sunshine days is April (11.7 days).
Average UV index in May
New Castle, CO
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in May
New Castle, CO
- Average cloud cover in May: 21
The month with the most cloud cover is February (Cloud cover 39).
The months with the least cloud cover are June and September (Cloud cover 12).
Average visibility in May
New Castle, CO
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
