May weather forecastLouisville, CO
May
Weather in May
The last month of the spring, May, is a refreshing month in Louisville, Colorado, with temperature in the range of an average low of 41.7°F (5.4°C) and an average high of 66°F (18.9°C).Temperature
A gentle upsurge in temperatures occurs as April gives way to May, with average highs shifting from a moderate 57.6°F (14.2°C) to a still refreshing 66°F (18.9°C). Louisville experiences a consistent, yet significant, drop from daily highs to a low-temperature of 41.7°F (5.4°C) throughout May.Humidity
The average relative humidity in May in Louisville is 54%.Rainfall
The months with the most rainfall in Louisville are May and July, with an average 0.87" (22mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 1.6 snowfall days, in May, Louisville aggregates 0.79" (20mm) of snow. Throughout the year, in Louisville, there are 36.7 snowfall days, and 13.98" (355mm) of snow is accumulated.Daylight
In Louisville, Colorado, the average length of the day in May is 14h and 25min.On the first day of May, sunrise is at 5:59 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:22 pm MDT.
Sunshine
In Louisville, the average sunshine in May is 11.1h.UV index
In Louisville, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In May, the maximum UV index of 5 translates into these guidelines:
Take necessary precautions - Protection from skin and eye injury is mandatory. The solar radiation around mid-day is intense; avoid the Sun and stay safe. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Louisville, CO
- Average high temperature in May: 66°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (39.4°F).
- Average low temperature in May: 41.7°F
The month with the highest average low temperature is July (59°F).
The coldest months (with the lowest average low temperature) are February and December (20.7°F).
Average pressure in May
Louisville, CO
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are April and June (29.91"Hg).
Average wind speed in May
Louisville, CO
- Average wind speed in May: 5.8mph
The windiest months (with the highest average wind speed) are March and April (6.5mph).
The calmest month (with the lowest average wind speed) is September (5.6mph).
Average humidity in May
Louisville, CO
- Average humidity in May: 54%
The month with the highest relative humidity is February (67%).
The month with the lowest relative humidity is August (41%).
Average rainfall in May
Louisville, CO
- Average rainfall in May: 0.87"
The wettest months (with the highest rainfall) are May and July (0.87").
The driest month (with the least rainfall) is January (0.16").
Average rainfall days in May
Louisville, CO
- Average rainfall days in May: 14.4 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is November (3.5 days).
Average snowfall in May
Louisville, CO
- Average snowfall in May: 0.79"
The month with the highest snowfall is February (2.68").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Louisville, CO
- Average snowfall days in May: 1.6 days
The month with the highest number of snowfall days is February (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Louisville, CO
- 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: 11h and 6min
The months with the most sunshine are June, July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).
Average sunshine days in May
Louisville, CO
- Average sunshine days in May: 12 days
The month with the most sunshine days is November (23.7 days).
The month with the least sunshine days is July (10 days).
Average UV index in May
Louisville, CO
- Average UV index in May: 5
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Louisville, CO
- Average cloud cover in May: 26
The months with the most cloud cover are April and May (Cloud cover 26).
The month with the least cloud cover is September (Cloud cover 15).
Average visibility in May
Louisville, CO
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
