Climate and monthly weather forecastLewisville, ID
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Lewisville, Idaho, with temperature in the range of an average high of 27.9°F (-2.3°C) and an average low of 13.8°F (-10.1°C). January's arrival shows an average high-temperature of a still subzero cold 27.9°F (-2.3°C), hardly different from the previous month. Weather in January »Weather in February
The last month of the winter, February, is also a subzero cold month in Lewisville, Idaho, with an average temperature ranging between max 30.6°F (-0.8°C) and min 17.6°F (-8°C). As February takes hold, the average high-temperature is a still subzero cold 30.6°F (-0.8°C), nearly mirroring that of the previous month. Weather in February »Weather in March
The first month of the spring, March, is a wintry month in Lewisville, Idaho, with an average temperature varying between 41°F (5°C) and 27°F (-2.8°C). The shift into March is marked by a rise in the average high-temperature, moving from February's freezing cold 30.6°F (-0.8°C) to a cold 41°F (5°C). Weather in March »Weather in April
April in Lewisville, Idaho, is a cool spring month, with an average temperature ranging between min 34°F (1.1°C) and max 52.3°F (11.3°C). A rise in the average high-temperature is observed during April, moving from an icy 41°F (5°C) in March to a cool 52.3°F (11.3°C). Weather in April »Weather in May
May, the last month of the spring in Lewisville, is a refreshing month, with an average temperature varying between 40.1°F (4.5°C) and 63.5°F (17.5°C). As May arrives, Lewisville's weather shows an increase in high-temperatures, moving from April's fresh 52.3°F (11.3°C) to an enjoyable 63.5°F (17.5°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Lewisville, Idaho, with an average temperature varying between 73.9°F (23.3°C) and 46.6°F (8.1°C). Observing a rise in June, the average high-temperature goes from May's refreshing 63.5°F (17.5°C) to a warm 73.9°F (23.3°C). Weather in June »Weather in July
July, like June, in Lewisville, Idaho, is a moderately hot summer month, with an average temperature fluctuating between 85.1°F (29.5°C) and 53.6°F (12°C). July is the month that records the highest temperatures, with averages ranging from a high of 85.1°F (29.5°C) to a low of 53.6°F (12°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Lewisville, Idaho, with an average temperature ranging between max 83.3°F (28.5°C) and min 53.8°F (12.1°C). August's advent presents an average high-temperature of a still warm 83.3°F (28.5°C), indicating a slight variation from the conditions of the previous month. Weather in August »Weather in September
The first month of the autumn, September, is still a pleasant month in Lewisville, Idaho, with an average temperature varying between 47.8°F (8.8°C) and 72.9°F (22.7°C). The average high-temperature drops in September, from August's warm 83.3°F (28.5°C) to an agreeable 72.9°F (22.7°C). Weather in September »Weather in October
October, the same as September, is another fresh autumn month in Lewisville, Idaho, with an average temperature varying between 36.3°F (2.4°C) and 54.5°F (12.5°C). In October, the average high-temperature decreases considerably from a pleasant 72.9°F (22.7°C) in September to a fresh 54.5°F (12.5°C). Weather in October »Weather in November
November, the last month of the autumn in Lewisville, is also a wintry month, with an average temperature fluctuating between 25.7°F (-3.5°C) and 40.5°F (4.7°C). The arrival of November corresponds with a temperature reduction, down from October's cool 54.5°F (12.5°C) to an icy 40.5°F (4.7°C). Weather in November »Weather in December
The first month of the winter, December, is also a subzero cold month in Lewisville, Idaho, with an average temperature ranging between max 27.1°F (-2.7°C) and min 14.9°F (-9.5°C). December is the coldest month of the year, registering average temperatures as high as 27.1°F (-2.7°C) and as low as 14.9°F (-9.5°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Lewisville, ID
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is December (27.1°F).
The month with the highest average low temperature is August (53.8°F).
The coldest month (with the lowest average low temperature) is January (13.8°F).
Average pressure
Lewisville, ID
- Average pressure in January:
30.29"Hg - Average pressure in February:
30.16"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.06"Hg - Average pressure in November:
30.17"Hg - Average pressure in December:
30.26"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Lewisville, ID
- Average wind speed in January:
4.9mph - Average wind speed in February:
6mph - Average wind speed in March:
6.7mph - Average wind speed in April:
8mph - Average wind speed in May:
7.4mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
6.9mph - Average wind speed in August:
6.5mph - Average wind speed in September:
6.8mph - Average wind speed in October:
6.6mph - Average wind speed in November:
6.1mph - Average wind speed in December:
5.1mph
The windiest month (with the highest average wind speed) is April (8mph).
The calmest month (with the lowest average wind speed) is January (4.9mph).
Average humidity
Lewisville, ID
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (37%).
Average rainfall
Lewisville, ID
- Average rainfall in January:
1.06" - Average rainfall in February:
0.91" - Average rainfall in March:
1.18" - Average rainfall in April:
1.18" - Average rainfall in May:
1.26" - Average rainfall in June:
1.1"
- Average rainfall in July:
0.31" - Average rainfall in August:
0.55" - Average rainfall in September:
0.83" - Average rainfall in October:
0.83" - Average rainfall in November:
0.79" - Average rainfall in December:
0.94"
The wettest month (with the highest rainfall) is May (1.26").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days
Lewisville, ID
- Average rainfall days in January:
7.8 days - Average rainfall days in February:
8.3 days - Average rainfall days in March:
12 days - Average rainfall days in April:
14.2 days - Average rainfall days in May:
12.8 days - Average rainfall days in June:
10.3 days
- Average rainfall days in July:
5.8 days - Average rainfall days in August:
7.3 days - Average rainfall days in September:
7.8 days - Average rainfall days in October:
9.2 days - Average rainfall days in November:
7.3 days - Average rainfall days in December:
9.5 days
The month with the highest number of rainy days is April (14.2 days).
The month with the least rainy days is July (5.8 days).
Average snowfall
Lewisville, ID
- Average snowfall in January:
8.31" - Average snowfall in February:
5.67" - Average snowfall in March:
4.61" - Average snowfall in April:
1.26" - Average snowfall in May:
0.67" - Average snowfall in June:
0"
The month with the highest snowfall is January (8.31").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Lewisville, ID
- Average snowfall days in January:
17.3 days - Average snowfall days in February:
16.2 days - Average snowfall days in March:
12.1 days - Average snowfall days in April:
4 days - Average snowfall days in May:
0.6 days - Average snowfall days in June:
0.1 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.1 days - Average snowfall days in October:
2.2 days - Average snowfall days in November:
9.3 days - Average snowfall days in December:
17.1 days
The month with the highest number of snowfall days is January (17.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Lewisville, ID
- Average daylight in January:
9h and 24min - Average daylight in February:
10h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 42min - Average daylight in June:
15h and 24min
- Average daylight in July:
15h and 6min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 42min - Average daylight in December:
9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January:
4h and 42min - Average sunshine in February:
5h and 30min - Average sunshine in March:
7h and 12min - Average sunshine in April:
10h and 0min - Average sunshine in May:
10h and 54min - Average sunshine in June:
11h and 42min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
11h and 48min - Average sunshine in September:
10h and 0min - Average sunshine in October:
7h and 18min - Average sunshine in November:
6h and 18min - Average sunshine in December:
5h and 6min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days
Lewisville, ID
- Average sunshine days in January:
13.4 days - Average sunshine days in February:
9.9 days - Average sunshine days in March:
12.2 days - Average sunshine days in April:
11.7 days - Average sunshine days in May:
14.8 days - Average sunshine days in June:
16.7 days
- Average sunshine days in July:
22.3 days - Average sunshine days in August:
19.5 days - Average sunshine days in September:
19.8 days - Average sunshine days in October:
18.9 days - Average sunshine days in November:
16.7 days - Average sunshine days in December:
11.8 days
The month with the most sunshine days is July (22.3 days).
The month with the least sunshine days is February (9.9 days).
Average UV index
Lewisville, ID
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Lewisville, ID
The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility
Lewisville, ID
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).





