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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, in Swan Valley, Idaho, is a freezing cold winter month, with an average temperature ranging between max 26.1°F (-3.3°C) and min 7.3°F (-13.7°C). January's average high-temperature is a still subzero cold 26.1°F (-3.3°C), maintaining a close comparison with December's 24.3°F (-4.3°C). Weather in January »
Weather in February
The last month of the winter, February, is another freezing cold month in Swan Valley, Idaho, with an average temperature varying between 9.9°F (-12.3°C) and 27.3°F (-2.6°C). The shift into February records an average high-temperature of a still subzero cold 27.3°F (-2.6°C), subtly varied from January's 26.1°F (-3.3°C). Weather in February »
Weather in March
The first month of the spring, March, is a cold month in Swan Valley, Idaho, with an average temperature varying between 16.9°F (-8.4°C) and 33.8°F (1°C). The arrival of March signals a slight increase in the average high-temperature, moving from a freezing cold 27.3°F (-2.6°C) in February to an icy 33.8°F (1°C). Weather in March »
Weather in April
April, like March, in Swan Valley, Idaho, is another cold spring month, with an average temperature ranging between max 42.1°F (5.6°C) and min 22.8°F (-5.1°C). Swan Valley experiences a minor temperature shift with the start of April, with average high-temperatures moving from a cold 33.8°F (1°C) in March to a still icy 42.1°F (5.6°C). Weather in April »
Weather in May
The last month of the spring, May, is a refreshing month in Swan Valley, Idaho, with temperature in the range of an average high of 55.4°F (13°C) and an average low of 31.3°F (-0.4°C). May brings a rise in Swan Valley's average high-temperature, moving from an icy 42.1°F (5.6°C) in April to a refreshing 55.4°F (13°C). Weather in May »
Weather in June
The first month of the summer, June, is a refreshing month in Swan Valley, Idaho, with temperature in the range of an average low of 37.9°F (3.3°C) and an average high of 66.6°F (19.2°C). As May transitions into June, a change in temperatures is observed, with average highs moving from a mild 55.4°F (13°C) to a comfortable 66.6°F (19.2°C). Weather in June »
Weather in July
July in Swan Valley, Idaho, is a warm summer month, with temperature in the range of an average high of 77.5°F (25.3°C) and an average low of 45.3°F (7.4°C). In Swan Valley, the month of July is known for its highest average temperatures, reaching a high of 77.5°F (25.3°C) and a low of 45.3°F (7.4°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Swan Valley, Idaho, with temperature in the range of an average high of 76.5°F (24.7°C) and an average low of 45.3°F (7.4°C). August's presence records an average high-temperature of a still moderately hot 76.5°F (24.7°C), closely mirroring July's climate. Weather in August »
Weather in September
September, the first month of the autumn in Swan Valley, is also an enjoyable month, with an average temperature fluctuating between 40.1°F (4.5°C) and 66.6°F (19.2°C). In Swan Valley, the average high-temperature in September drops from a moderately hot 76.5°F (24.7°C) in August to an enjoyable 66.6°F (19.2°C). Weather in September »
Weather in October
October, like September, is another chilly autumn month in Swan Valley, Idaho, with an average temperature varying between 29.1°F (-1.6°C) and 48.9°F (9.4°C). Swan Valley in October sees a clear temperature decline, with average high-temperatures decreasing from a refreshing 66.6°F (19.2°C) in September to a frosty 48.9°F (9.4°C). Weather in October »
Weather in November
November, the last month of the autumn in Swan Valley, is another cold month, with an average temperature varying between 35.1°F (1.7°C) and 18.5°F (-7.5°C). November ushers in a slight temperature change, with average high-temperatures reducing from October's frosty 48.9°F (9.4°C) to a cold 35.1°F (1.7°C). Weather in November »
Weather in December
December, the first month of the winter in Swan Valley, is also a subzero cold month, with an average temperature ranging between max 24.3°F (-4.3°C) and min 8.8°F (-12.9°C). December, with its average high-temperature of 24.3°F (-4.3°C) and an average low-temperature of 8.8°F (-12.9°C), holds the record as the coldest month. Weather in December »
Updated: Aug 22, 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
How much does it rain?
Throughout the year, there are 127 rainfall days, and 24.29" (617mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through June, September through December.
How many days does it snow?
In Swan Valley, during the entire year, snow falls for 126.6 days and aggregates up to 110.28" (2801mm) of snow.
What is the month with the lowest UV index?
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 1.
What is the most humid month?
With an average relative humidity of 94%, February is the most humid month.
What is the wettest month in Swan Valley?
February is the month with the most rainfall. Rain falls for 5.6 days and accumulates 2.91" (74mm) of precipitation.
What is the snowiest month?
February is the month with the most snowfall. Snow falls for 22.3 days and accumulates 22.91" (582mm) of snow.
What is the month with the least sunshine?
With an average of 4h of sunshine, February has the least sunshine of the year.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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 are the longest days?
The month with the longest days in Swan Valley is June, with an average of 15h and 24min of daylight.
What month is the hottest?
July is the warmest month, with the temperature often reaching an average high of 77.5°F (25.3°C) and an average low of 45.3°F (7.4°C).
What is the driest month?
July is the month with the least rainfall. Rain falls for 10.4 days and accumulates 0.91" (23mm) of precipitation.
When it does not snow?
In Swan Valley, snow does not fall in July and August.
What month has the most sunshine?
The month with the most sunshine is July, with an average of 11.9h of sunshine.
What is the month with the highest UV index?
The month with the highest UV index is July, with an average maximum UV index of 5.
What is the least humid month?
The least humid month is August, with an average relative humidity of 46%.
What are the coldest months?
With average high temperatures of 24.3°F (-4.3°C) and lows of 8.8°F (-12.9°C), December is the coldest month.
What is the month with the shortest days?
The month with the shortest days in Swan Valley is December, with an average of 9h and 0min of daylight.
Average temperature
Swan Valley, ID
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is December (24.3°F).
The months with the highest average low temperature are July and August (45.3°F).
The coldest month (with the lowest average low temperature) is January (7.3°F).
Average pressure
Swan Valley, ID
- Average pressure in January:
30.28"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:
29.97"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.06"Hg - Average pressure in November:
30.16"Hg - Average pressure in December:
30.25"Hg
The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Swan Valley, ID
- Average wind speed in January:
4.3mph - Average wind speed in February:
4.9mph - Average wind speed in March:
5mph - Average wind speed in April:
5mph - Average wind speed in May:
5mph - Average wind speed in June:
5.7mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.4mph - Average wind speed in September:
5.2mph - Average wind speed in October:
4.8mph - Average wind speed in November:
4.7mph - Average wind speed in December:
4.4mph
The windiest month (with the highest average wind speed) is June (5.7mph).
The calmest month (with the lowest average wind speed) is January (4.3mph).
Average humidity
Swan Valley, ID
The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is August (46%).
Average rainfall
Swan Valley, ID
- Average rainfall in January:
2.64" - Average rainfall in February:
2.91" - Average rainfall in March:
2.32" - Average rainfall in April:
2.83" - Average rainfall in May:
2.52" - Average rainfall in June:
2.2"
- Average rainfall in July:
0.91" - Average rainfall in August:
0.94" - Average rainfall in September:
1.46" - Average rainfall in October:
1.65" - Average rainfall in November:
1.89" - Average rainfall in December:
2.01"
The wettest month (with the highest rainfall) is February (2.91").
The driest month (with the least rainfall) is July (0.91").
Average rainfall days
Swan Valley, ID
- Average rainfall days in January:
4.6 days - Average rainfall days in February:
5.6 days - Average rainfall days in March:
11.8 days - Average rainfall days in April:
16.6 days - Average rainfall days in May:
17.9 days - Average rainfall days in June:
14.1 days
- Average rainfall days in July:
10.4 days - Average rainfall days in August:
10.6 days - Average rainfall days in September:
11.1 days - Average rainfall days in October:
11.8 days - Average rainfall days in November:
6.7 days - Average rainfall days in December:
5.8 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (4.6 days).
Average snowfall
Swan Valley, ID
- Average snowfall in January:
22.09" - Average snowfall in February:
22.91" - Average snowfall in March:
15.55" - Average snowfall in April:
11.77" - Average snowfall in May:
2.87" - Average snowfall in June:
0.28"
The month with the highest snowfall is February (22.91").
The months with the least snowfall are July and August (0").
Average snowfall days
Swan Valley, ID
- Average snowfall days in January:
20.6 days - Average snowfall days in February:
22.3 days - Average snowfall days in March:
19.9 days - Average snowfall days in April:
14.8 days - Average snowfall days in May:
4.1 days - Average snowfall days in June:
0.7 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.5 days - Average snowfall days in October:
7.1 days - Average snowfall days in November:
14.3 days - Average snowfall days in December:
22.3 days
The months with the highest number of snowfall days are February and December (22.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Swan Valley, 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 4min - Average daylight in June:
15h and 2min
- Average daylight in July:
15h and 0min - 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:
4h and 1min - Average sunshine in February:
4h and 0min - Average sunshine in March:
5h and 2min - Average sunshine in April:
8h and 1min - Average sunshine in May:
10h and 1min - Average sunshine in June:
11h and 1min
- Average sunshine in July:
11h and 5min - Average sunshine in August:
11h and 4min - Average sunshine in September:
10h and 1min - Average sunshine in October:
6h and 4min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days
Swan Valley, ID
- Average sunshine days in January:
10.4 days - Average sunshine days in February:
5.8 days - Average sunshine days in March:
6.3 days - Average sunshine days in April:
5.3 days - Average sunshine days in May:
7.8 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
16.1 days - Average sunshine days in August:
15.3 days - Average sunshine days in September:
16.2 days - Average sunshine days in October:
15 days - Average sunshine days in November:
13.1 days - Average sunshine days in December:
9.3 days
The month with the most sunshine days is September (16.2 days).
The month with the least sunshine days is April (5.3 days).
Average UV index
Swan Valley, ID
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover
Swan Valley, ID
The month with the most cloud cover is February (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility
Swan Valley, ID
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (3mi).
Swan Valley, Idaho, USA
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