May weather forecastDelta, CO
May
Weather in May
May, the last month of the spring in Delta, is a comfortable month, with an average temperature ranging between min 40.3°F (4.6°C) and max 64.8°F (18.2°C).Temperature
Delta sees an increase in average high-temperatures during May, moving from a cool 54.1°F (12.3°C) in April to a refreshing 64.8°F (18.2°C). A considerable shift from the daytime highs is observed during May nights, with an average low of 40.3°F (4.6°C).Humidity
The average relative humidity in May is 44%.Rainfall
In Delta, in May, during 11.4 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. Throughout the year, there are 120.8 rainfall days, and 14.06" (357mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.4 snowfall days, in May, Delta aggregates 0.2" (5mm) of snow. Throughout the year, there are 43.4 snowfall days, and 22.87" (581mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 18min.On the first day of the month, sunrise is at 6:13 am and sunset at 8:05 pm. On the last day of May, sunrise is at 5:49 am and sunset at 8:30 pm MDT.
Sunshine
The average sunshine in May is 11.5h.UV index
The average daily maximum UV index in May in Delta is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 4 during May translates into these guidelines:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Delta, CO
- Average high temperature in May: 64.8°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (33.1°F).
- Average low temperature in May: 40.3°F
The month with the highest average low temperature is July (55.2°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).
Average pressure in May
Delta, CO
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is January (30.26"Hg).
The month with the lowest atmospheric pressure is May (29.92"Hg).
Average wind speed in May
Delta, CO
- Average wind speed in May: 6.5mph
The windiest month (with the highest average wind speed) is June (7mph).
The calmest month (with the lowest average wind speed) is January (3.9mph).
Average humidity in May
Delta, CO
- Average humidity in May: 44%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is June (34%).
Average rainfall in May
Delta, CO
- Average rainfall in May: 1.18"
The wettest month (with the highest rainfall) is August (1.54").
The driest month (with the least rainfall) is June (0.71").
Average rainfall days in May
Delta, CO
- Average rainfall days in May: 11.4 days
The month with the highest number of rainy days is April (13.8 days).
The month with the least rainy days is June (6.8 days).
Average snowfall in May
Delta, CO
- Average snowfall in May: 0.2"
The month with the highest snowfall is December (5.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Delta, CO
- Average snowfall days in May: 0.4 days
The month with the highest number of snowfall days is February (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Delta, CO
- Average daylight in May: 14h and 18min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 11h and 30min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).
Average sunshine days in May
Delta, CO
- Average sunshine days in May: 16.5 days
The months with the most sunshine days are June and November (20.4 days).
The month with the least sunshine days is August (13.3 days).
Average UV index in May
Delta, 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, November and December (UV index 2).
Average cloud cover in May
Delta, CO
- Average cloud cover in May: 19
The months with the most cloud cover are January and February (Cloud cover 33).
The month with the least cloud cover is June (Cloud cover 11).
Average visibility in May
Delta, CO
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
