Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
April's onset is marked by a subtle temperature increase, moving from a fresh 50.7°F (10.4°C) in March to a moderate 57.6°F (14.2°C). With the onset of night in April, Louisville reveals a significant decrease in temperature, averaging at a cold 33.4°F (0.8°C).Humidity
In April, the average relative humidity is 53%.Rainfall
In Louisville, Colorado, during April, the rain falls for 9.3 days and regularly aggregates up to 0.59" (15mm) of precipitation. In Louisville, during the entire year, the rain falls for 96.7 days and collects up to 5.63" (143mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Louisville, Colorado. In Louisville, in April, snow falls for 3.6 days, with typically accumulated 2.6" (66mm) of snow. Throughout the year, in Louisville, there are 36.7 snowfall days, and 13.98" (355mm) of snow is accumulated.Daylight
The average length of the day in April in Louisville is 13h and 18min.On the first day of the month, sunrise is at 6:43 am and sunset at 7:25 pm. On the last day of April, sunrise is at 6:00 am and sunset at 7:54 pm MDT.
Sunshine
In Louisville, the average sunshine in April is 10.7h.UV index
In Louisville, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In April, the maximum UV index of 3 translates into these guidelines:
Take precautions - Protection against sun damage is advised. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Frequently asked questions
What is the average April temperature in Louisville?
What is the average humidity in April in Louisville?
How many days does it rain in April in Louisville?
How much does it snow in Louisville in April?
What is the average length of the day in April in Louisville?
When is the sunrise / sunset in April in Louisville?
How long on average sun shines in April in Louisville?
What is the UV index intensity in April in Louisville?
Average temperature in April
Louisville, CO
- Average high temperature in April: 57.6°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 April: 33.4°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 April
Louisville, CO
- Average pressure in April: 29.91"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 April
Louisville, CO
- Average wind speed in April: 6.5mph
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 April
Louisville, CO
- Average humidity in April: 53%
The month with the highest relative humidity is February (67%).
The month with the lowest relative humidity is August (41%).
Average rainfall in April
Louisville, CO
- Average rainfall in April: 0.59"
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 April
Louisville, CO
- Average rainfall days in April: 9.3 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 April
Louisville, CO
- Average snowfall in April: 2.6"
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 April
Louisville, CO
- Average snowfall days in April: 3.6 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 April /
Average sunshine in April
Louisville, CO
- Average daylight in April: 13h and 2min
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 April: 10h and 4min
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 April
Louisville, CO
- Average sunshine days in April: 15.4 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 April
Louisville, CO
- Average UV index in April: 3
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 April
Louisville, CO
- Average cloud cover in April: 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 April
Louisville, CO
- Average visibility in April: 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).
Louisville, Colorado, USA
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