May weather forecastSan Luis, CO
May
Weather in May
May, the last month of the spring in San Luis, is an enjoyable month, with temperature in the range of an average low of 35.6°F (2°C) and an average high of 61.5°F (16.4°C).Temperature
May's arrival coincides with a rise in the average high-temperature, moving from April's fresh 52°F (11.1°C) to a refreshing 61.5°F (16.4°C). San Luis in May observes a sharp transition from the daytime heat, falling to an average low of 35.6°F (2°C).Humidity
In May, the average relative humidity in San Luis is 41%.Rainfall
In San Luis, in May, it is raining for 7.5 days, with typically 0.79" (20mm) of accumulated precipitation. Throughout the year, there are 72.2 rainfall days, and 8.82" (224mm) of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall. In San Luis, in May, during 2.7 snowfall days, 1.77" (45mm) of snow is typically accumulated. In San Luis, during the entire year, snow falls for 57.6 days and aggregates up to 28.58" (726mm) of snow.Daylight
The average length of the day in May is 14h and 11min.On the first day of May, sunrise is at 6:05 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 8:16 pm MDT.
Sunshine
The average sunshine in May is 11.5h.UV index
The average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The average daily UV index of 4 in May transforms into the following instructions:
Be vigilant - Suggestions to stave off sun damage are provided. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
San Luis, CO
- Average high temperature in May: 61.5°F
The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in May: 35.6°F
The month with the highest average low temperature is July (50.2°F).
The coldest month (with the lowest average low temperature) is January (9.3°F).
Average pressure in May
San Luis, CO
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is April (29.89"Hg).
Average wind speed in May
San Luis, CO
- Average wind speed in May: 8.9mph
The windiest months (with the highest average wind speed) are April and May (8.9mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).
Average humidity in May
San Luis, CO
- Average humidity in May: 41%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is June (38%).
Average rainfall in May
San Luis, CO
- Average rainfall in May: 0.79"
The wettest month (with the highest rainfall) is July (1.61").
The driest month (with the least rainfall) is November (0.43").
Average rainfall days in May
San Luis, CO
- Average rainfall days in May: 7.5 days
The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is November (1.3 days).
Average snowfall in May
San Luis, CO
- Average snowfall in May: 1.77"
The month with the highest snowfall is March (5.55").
The months with the least snowfall are July and August (0").
Average snowfall days in May
San Luis, CO
- Average snowfall days in May: 2.7 days
The month with the highest number of snowfall days is February (10.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
San Luis, CO
- Average daylight in May: 14h and 12min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in May: 11h and 30min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 6h and 30min).
Average sunshine days in May
San Luis, CO
- Average sunshine days in May: 19.6 days
The month with the most sunshine days is October (24.1 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in May
San Luis, 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
San Luis, CO
- Average cloud cover in May: 16
The month with the most cloud cover is January (Cloud cover 31).
The months with the least cloud cover are June and October (Cloud cover 14).
Average visibility in May
San Luis, 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).
