Climate and monthly weather forecastLouisville, CO
Climate and monthly weather forecast
Weather in January
January, the same as December, is another cold winter month in Louisville, Colorado, with an average temperature fluctuating between 21.6°F (-5.8°C) and 40.3°F (4.6°C). As January takes hold, the average high-temperature is a still cold 40.3°F (4.6°C), nearly mirroring that of the previous month. Weather in January »Weather in February
February, the last month of the winter in Louisville, is also an icy month, with an average temperature ranging between min 20.7°F (-6.3°C) and max 39.7°F (4.3°C). With the transition into February, Louisville notes an average high-temperature of a still cold 39.7°F (4.3°C), closely resembling January. Weather in February »Weather in March
March, the first month of the spring in Louisville, is a fresh month, with an average temperature fluctuating between 29.1°F (-1.6°C) and 50.7°F (10.4°C). A rise in the average high-temperature is observed during March, moving from a wintry 39.7°F (4.3°C) in February to a cool 50.7°F (10.4°C). Weather in March »Weather in April
April is a mild spring month in Louisville, Colorado, with an average temperature varying between 33.4°F (0.8°C) and 57.6°F (14.2°C). 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). Weather in April »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). 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). Weather in May »Weather in June
June, the first month of the summer in Louisville, is a moderately hot month, with an average temperature fluctuating between 53.8°F (12.1°C) and 81.3°F (27.4°C). As June sets, the average high-temperature displays a significant increase, moving up from a comfortable 66°F (18.9°C) in May to a moderately hot 81.3°F (27.4°C). Weather in June »Weather in July
July, like June, in Louisville, Colorado, is a moderately hot summer month, with an average temperature ranging between min 59°F (15°C) and max 85.5°F (29.7°C). Louisville, Colorado, notes the warmest temperatures in July, with a high average of 85.5°F (29.7°C) and a low of 59°F (15°C). For most parts of July, the heat index is estimated at a tropical 86°F (30°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Louisville, Colorado, with an average temperature fluctuating between 57.4°F (14.1°C) and 84.2°F (29°C). Louisville experiences a minor change to a still moderately hot 84.2°F (29°C) in average high-temperature during August, closely reflecting July. Weather in August »Weather in September
September, the first month of the autumn in Louisville, is still a warm month, with an average temperature varying between 76.6°F (24.8°C) and 50.7°F (10.4°C). As August makes way for September, Louisville's average high-temperature eases from 84.2°F (29°C) to a still warm 76.6°F (24.8°C). Weather in September »Weather in October
October, the same as September, is another enjoyable autumn month in Louisville, Colorado, with an average temperature fluctuating between 38.1°F (3.4°C) and 61°F (16.1°C). As October arrives, a noticeable drop in the average high-temperature is witnessed, moving from a moderately hot 76.6°F (24.8°C) in September to an enjoyable 61°F (16.1°C). Weather in October »Weather in November
The last month of the autumn, November, is also a fresh month in Louisville, Colorado, with an average temperature fluctuating between 28.8°F (-1.8°C) and 50°F (10°C). With November's arrival, Louisville's weather changes as the average high-temperature falls from an enjoyable 61°F (16.1°C) in October to a cool 50°F (10°C). Weather in November »Weather in December
December, the first month of the winter in Louisville, is also a wintry month, with temperature in the range of an average high of 39.4°F (4.1°C) and an average low of 20.7°F (-6.3°C). Temperature readings reach their annual highs in December, averaging 39.4°F (4.1°C) and a minimum average of 20.7°F (-6.3°C). Weather in December »Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
The month with the least rainfall in Louisville is January, when the rain falls for 4.8 days and typically collects 0.16" (4mm) of precipitation.
In Louisville, during the entire year, the rain falls for 96.7 days and collects up to 5.63" (143mm) of precipitation.
January through May, October through December are months with snowfall in Louisville.
In Louisville, Colorado, during the entire year, snow falls for 36.7 days and aggregates up to 13.98" (355mm) of snow.
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
February is the most humid month, with an average relative humidity of 67%.
The month with the most snowfall is February, when snow falls for 8.4 days and typically aggregates up to 2.68" (68mm) of snow.
With an average of 6.7h of sunshine, February has the least sunshine of the year in Louisville.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Louisville, Colorado, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.
The months with the most rainfall in Louisville, Colorado, are May and July, with an average 0.87" (22mm) of precipitation.
June through September are months without snowfall.
The month with the longest days is June, with an average of 15h and 0min of daylight.
The months with the most sunshine are June through August, with an average of 11.8h of sunshine.
July is the warmest month, with the temperature often reaching an average high of 85.5°F (29.7°C) and an average low of 59°F (15°C).
July and August, with an average maximum UV index of 6, are months with the highest UV index in Louisville.
The least humid month is August, with an average relative humidity of 41%.
December brings the lowest temperatures, with an average high of 39.4°F (4.1°C) and an average low of 20.7°F (-6.3°C).
December has the shortest days of the year, with an average of 9h and 24min of daylight.
Average temperature
Louisville, CO
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).
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
Louisville, CO
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30"Hg - Average pressure in April:
29.91"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
30.01"Hg - Average pressure in August:
30.01"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.12"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
Louisville, CO
- Average wind speed in January:
6.3mph - Average wind speed in February:
6.3mph - Average wind speed in March:
6.5mph - Average wind speed in April:
6.5mph - Average wind speed in May:
5.8mph - Average wind speed in June:
6mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.7mph - Average wind speed in September:
5.6mph - Average wind speed in October:
5.8mph - Average wind speed in November:
6.2mph - Average wind speed in December:
6mph
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
Louisville, CO
The month with the highest relative humidity is February (67%).
The month with the lowest relative humidity is August (41%).
Average rainfall
Louisville, CO
- Average rainfall in January:
0.16" - Average rainfall in February:
0.35" - Average rainfall in March:
0.43" - Average rainfall in April:
0.59" - Average rainfall in May:
0.87" - Average rainfall in June:
0.63"
- Average rainfall in July:
0.87" - Average rainfall in August:
0.55" - Average rainfall in September:
0.35" - Average rainfall in October:
0.35" - Average rainfall in November:
0.28" - Average rainfall in December:
0.2"
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
Louisville, CO
- Average rainfall days in January:
4.8 days - Average rainfall days in February:
5.6 days - Average rainfall days in March:
8.4 days - Average rainfall days in April:
9.3 days - Average rainfall days in May:
14.4 days - Average rainfall days in June:
9.9 days
- Average rainfall days in July:
13.5 days - Average rainfall days in August:
9.8 days - Average rainfall days in September:
7.7 days - Average rainfall days in October:
4.8 days - Average rainfall days in November:
3.5 days - Average rainfall days in December:
5 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
Louisville, CO
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
Louisville, CO
- Average snowfall days in January:
5.8 days - Average snowfall days in February:
8.4 days - Average snowfall days in March:
4.8 days - Average snowfall days in April:
3.6 days - Average snowfall days in May:
1.6 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
2.5 days - Average snowfall days in November:
4.4 days - Average snowfall days in December:
5.6 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 / Average sunshine
Louisville, CO
- Average daylight in January:
9h and 42min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 24min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
10h and 0min - Average daylight in December:
9h 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 January:
7h and 0min - Average sunshine in February:
6h and 42min - Average sunshine in March:
9h and 0min - Average sunshine in April:
10h and 42min - Average sunshine in May:
11h and 6min - Average sunshine in June:
11h and 48min
- Average sunshine in July:
11h and 48min - Average sunshine in August:
11h and 48min - Average sunshine in September:
11h and 6min - Average sunshine in October:
7h and 24min - Average sunshine in November:
7h and 18min - Average sunshine in December:
7h and 0min
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
Louisville, CO
- Average sunshine days in January:
23.6 days - Average sunshine days in February:
17.5 days - Average sunshine days in March:
17.7 days - Average sunshine days in April:
15.4 days - Average sunshine days in May:
12 days - Average sunshine days in June:
15.6 days
- Average sunshine days in July:
10 days - Average sunshine days in August:
13.3 days - Average sunshine days in September:
18 days - Average sunshine days in October:
21.8 days - Average sunshine days in November:
23.7 days - Average sunshine days in December:
22.5 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
Louisville, CO
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
Louisville, CO
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
Louisville, CO
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).
