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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, is another cold winter month in Letha, Idaho, with an average temperature varying between 36.1°F (2.3°C) and 23.5°F (-4.7°C). Letha's January showcases an average high-temperature of a still icy 36.1°F (2.3°C), hardly distinct from December's 34.9°F (1.6°C). Weather in January »
Weather in February
The last month of the winter, February, is also a wintry month in Letha, Idaho, with an average temperature ranging between max 41.5°F (5.3°C) and min 28.6°F (-1.9°C). As Letha welcomes February, the average high-temperature displays a subtle shift, adjusting from a wintry 36.1°F (2.3°C) in January to a still cold 41.5°F (5.3°C). Weather in February »
Weather in March
The first month of the spring, March, is a fresh month in Letha, Idaho, with an average temperature fluctuating between 35.1°F (1.7°C) and 51.1°F (10.6°C). The arrival of March brings an increase in high-temperatures, moving from a cold 41.5°F (5.3°C) in February to a cool 51.1°F (10.6°C). Weather in March »
Weather in April
April is a moderate spring month in Letha, Idaho, with temperature in the range of an average low of 38.8°F (3.8°C) and an average high of 58.8°F (14.9°C). Letha, Idaho, experiences a minor temperature shift with the start of April, with average high-temperatures moving from a cool 51.1°F (10.6°C) in March to a refreshing 58.8°F (14.9°C). Weather in April »
Weather in May
May, the last month of the spring in Letha, is a pleasant month, with an average temperature varying between 45°F (7.2°C) and 69.4°F (20.8°C). The commencement of May sees a shift in the average high-temperature, moving from a mild 58.8°F (14.9°C) in April to an agreeable 69.4°F (20.8°C). Weather in May »
Weather in June
June, the first month of the summer in Letha, is a warm month, with an average temperature fluctuating between 52°F (11.1°C) and 77.5°F (25.3°C). As Letha transitions into June, a marginal rise in the average high-temperature is observed, moving from an agreeable 69.4°F (20.8°C) in May to a warm 77.5°F (25.3°C). Weather in June »
Weather in July
July in Letha, Idaho, is a hot summer month, with an average temperature varying between 90°F (32.2°C) and 59.9°F (15.5°C). July is the warmest month of the year, registering average temperatures as high as 90°F (32.2°C) and as low as 59.9°F (15.5°C). Weather in July »
Weather in August
The last month of the summer, August, is another tropical month in Letha, Idaho, with an average temperature varying between 89.2°F (31.8°C) and 60.3°F (15.7°C). August denotes a minimal variation in the average high-temperature to a still hot 89.2°F (31.8°C) from July's 90°F (32.2°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Letha, Idaho, with temperature in the range of an average high of 78.1°F (25.6°C) and an average low of 53.4°F (11.9°C). Stepping into September, Letha observes a temperature decline, with the average high falling from August's tropical 89.2°F (31.8°C) to a warm 78.1°F (25.6°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Letha, Idaho, with an average temperature varying between 60.8°F (16°C) and 42.6°F (5.9°C). October signals a significant shift in the average high-temperature, falling from September's moderately hot 78.1°F (25.6°C) to an enjoyable 60.8°F (16°C). Weather in October »
Weather in November
November, the last month of the autumn in Letha, is also a frosty month, with an average temperature ranging between min 31.8°F (-0.1°C) and max 47.3°F (8.5°C). Transition from October to November is accompanied by a temperature drop, with average high-temperatures decreasing from a refreshing 60.8°F (16°C) to a frosty 47.3°F (8.5°C). Weather in November »
Weather in December
The first month of the winter, December, is still a cold month in Letha, Idaho, with temperature in the range of an average low of 22.8°F (-5.1°C) and an average high of 34.9°F (1.6°C). The month of December, characterized by an average high of 34.9°F (1.6°C) and a low of 22.8°F (-5.1°C), is recognized as the coldest. Weather in December »
Updated: Jul 4, 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
What is the most humid month?
With an average relative humidity of 82%, January is the most humid month.
How much does it rain in Letha?
In Letha, Idaho, during the entire year, the rain falls for 91.7 days and collects up to 10.28" (261mm) of precipitation.
When does it snow?
January through April, November and December are months with snowfall.
How many days does it snow?
Throughout the year, there are 22.2 snowfall days, and 12.95" (329mm) of snow is accumulated.
What are the months with the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
What is the rainiest month?
The month with the most rainfall in Letha is March, when the rain falls for 13.7 days and typically aggregates up to 1.54" (39mm) of precipitation.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Letha, Idaho, 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.
When it does not snow?
In Letha, snow does not fall in May through October.
When are the longest days in Letha?
The month with the longest days is June, with an average of 15h and 24min of daylight.
What is the hottest time of year?
Letha reaches its average highest temperatures in July, measuring 90°F (32.2°C) at the peak and 59.9°F (15.5°C) at the lowest.
What is the least humid month?
The months with the lowest humidity are July and August, with an average relative humidity of 31%.
What is the driest month?
July is the month with the least rainfall. Rain falls for 3.2 days and accumulates 0.16" (4mm) of precipitation.
What month has the most sunshine?
July has the most sunshine of the year, with an average of 12.1h of sunshine.
When is the highest UV index?
July is the month with the highest UV index, with an average maximum UV index of 7.
What are the coldest months?
December is Letha's coldest month, registering average high temperatures of 34.9°F (1.6°C) and lows of 22.8°F (-5.1°C).
When does it snow the most?
The month with the most snowfall is December, when snow falls for 7.5 days and typically aggregates up to 4.33" (110mm) of snow.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 0min of daylight.
What is the month with the least sunshine in Letha?
The month with the least sunshine is December, with an average of 5.3h of sunshine.
Average temperature
Letha, ID
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is December (34.9°F).
The month with the highest average low temperature is August (60.3°F).
The coldest month (with the lowest average low temperature) is December (22.8°F).
Average pressure
Letha, ID
- Average pressure in January:
30.24"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.92"Hg - Average pressure in August:
29.91"Hg - Average pressure in September:
29.95"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.21"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).
Average wind speed
Letha, ID
- Average wind speed in January:
4.2mph - Average wind speed in February:
5.3mph - Average wind speed in March:
6.3mph - Average wind speed in April:
6.5mph - Average wind speed in May:
5.8mph - Average wind speed in June:
5.4mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is January (4.2mph).
Average humidity
Letha, ID
The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are July and August (31%).
Average rainfall
Letha, ID
- Average rainfall in January:
1.38" - Average rainfall in February:
1.22" - Average rainfall in March:
1.54" - Average rainfall in April:
0.87" - Average rainfall in May:
0.91" - Average rainfall in June:
0.67"
The wettest month (with the highest rainfall) is March (1.54").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days
Letha, ID
- Average rainfall days in January:
8.6 days - Average rainfall days in February:
8.4 days - Average rainfall days in March:
13.7 days - Average rainfall days in April:
10.9 days - Average rainfall days in May:
8.6 days - Average rainfall days in June:
6.8 days
- Average rainfall days in July:
3.2 days - Average rainfall days in August:
3.8 days - Average rainfall days in September:
5 days - Average rainfall days in October:
6.6 days - Average rainfall days in November:
7.7 days - Average rainfall days in December:
8.4 days
The month with the highest number of rainy days is March (13.7 days).
The month with the least rainy days is July (3.2 days).
Average snowfall
Letha, ID
The month with the highest snowfall is December (4.33").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Letha, ID
- Average snowfall days in January:
5.5 days - Average snowfall days in February:
4.9 days - Average snowfall days in March:
1.9 days - Average snowfall days in April:
0.2 days - Average snowfall days in May:
0 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:
0.1 days - Average snowfall days in November:
2.1 days - Average snowfall days in December:
7.5 days
The month with the highest number of snowfall days is December (7.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Letha, ID
- Average daylight in January:
9h and 2min - Average daylight in February:
10h and 3min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 3min - Average daylight in May:
14h and 5min - Average daylight in June:
15h and 2min
- Average daylight in July:
15h and 1min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 4min - 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:
5h and 2min - Average sunshine in February:
7h and 3min - Average sunshine in March:
7h and 5min - Average sunshine in April:
9h and 2min - Average sunshine in May:
11h and 0min - Average sunshine in June:
11h and 2min
- Average sunshine in July:
12h and 1min - Average sunshine in August:
11h and 2min - Average sunshine in September:
9h and 3min - Average sunshine in October:
7h and 5min - Average sunshine in November:
6h and 2min - Average sunshine in December:
5h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days
Letha, ID
- Average sunshine days in January:
18.8 days - Average sunshine days in February:
15.9 days - Average sunshine days in March:
15.3 days - Average sunshine days in April:
17.6 days - Average sunshine days in May:
21.3 days - Average sunshine days in June:
21.3 days
- Average sunshine days in July:
25.3 days - Average sunshine days in August:
24.7 days - Average sunshine days in September:
23.7 days - Average sunshine days in October:
23.3 days - Average sunshine days in November:
20.3 days - Average sunshine days in December:
17.5 days
The month with the most sunshine days is July (25.3 days).
The month with the least sunshine days is March (15.3 days).
Average UV index
Letha, ID
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Letha, ID
The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility
Letha, ID
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
Letha, Idaho, USA
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