Climate and monthly weather forecastWinchester, ID
Climate and monthly weather forecast
Weather in January
January, like December, in Winchester, Idaho, is an icy winter month, with an average temperature ranging between max 34.9°F (1.6°C) and min 22.5°F (-5.3°C). With the arrival of January, Winchester's average high-temperature registers at a still cold 34.9°F (1.6°C), indicating a subtle variation from the previous month. Weather in January »Weather in February
The last month of the winter, February, is another cold month in Winchester, Idaho, with an average temperature fluctuating between 24.6°F (-4.1°C) and 36.9°F (2.7°C). February's advent presents an average high-temperature of a still wintry 36.9°F (2.7°C), indicating a slight variation from the conditions of the previous month. Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Winchester, Idaho, with temperature in the range of an average low of 29.5°F (-1.4°C) and an average high of 44.2°F (6.8°C). The shift from February to March sees a slight increase in the average high-temperature, transitioning from an icy 36.9°F (2.7°C) to a frosty 44.2°F (6.8°C). Weather in March »Weather in April
April is a cool spring month in Winchester, Idaho, with an average temperature fluctuating between 52°F (11.1°C) and 33.3°F (0.7°C). The coming of April brings a minor shift in Winchester's weather, with average high-temperatures adjusting from March's frosty 44.2°F (6.8°C) to a cool 52°F (11.1°C). Weather in April »Weather in May
The last month of the spring, May, is a comfortable month in Winchester, Idaho, with an average temperature varying between 38.8°F (3.8°C) and 61.9°F (16.6°C). The onset of May brings a temperature shift, with the average high-temperature moving from a cool 52°F (11.1°C) in April to a comfortable 61.9°F (16.6°C). Weather in May »Weather in June
June, the first month of the summer in Winchester, is a pleasant month, with an average temperature varying between 44.4°F (6.9°C) and 68.5°F (20.3°C). Observing a minor shift, the average high-temperature during June adjusts from May's comfortable 61.9°F (16.6°C) to a pleasant 68.5°F (20.3°C). Weather in June »Weather in July
July in Winchester, Idaho, is a warm summer month, with an average temperature varying between 80.8°F (27.1°C) and 52°F (11.1°C). In Winchester, the average high-temperature in July rises, from an agreeable 68.5°F (20.3°C) in June, to a moderately hot 80.8°F (27.1°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Winchester, Idaho, with an average temperature varying between 82°F (27.8°C) and 54.7°F (12.6°C). In Winchester, the peak average temperatures are observed in August, with a high of 82°F (27.8°C) and a low of 54.7°F (12.6°C). For most parts of August, the heat index is computed to be 82.4°F (28°C). Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Winchester, Idaho, with an average temperature varying between 48.9°F (9.4°C) and 72.7°F (22.6°C). During Winchester's transition into September, the average high-temperature lessens, moving from a moderately hot 82°F (27.8°C) in August to an agreeable 72.7°F (22.6°C). Weather in September »Weather in October
October, like September, is a moderate autumn month in Winchester, Idaho, with an average temperature varying between 37.9°F (3.3°C) and 55.8°F (13.2°C). The average high-temperature exhibits a considerable decrease in October, dropping from an agreeable 72.7°F (22.6°C) in September to a mild 55.8°F (13.2°C). Weather in October »Weather in November
The last month of the autumn, November, is another cold month in Winchester, Idaho, with temperature in the range of an average low of 28.6°F (-1.9°C) and an average high of 42.6°F (5.9°C). The shift from October to November involves a decrease in the average high-temperature, dropping from a moderate 55.8°F (13.2°C) to an icy 42.6°F (5.9°C). Weather in November »Weather in December
December, the first month of the winter in Winchester, is also a wintry month, with an average temperature fluctuating between 32.5°F (0.3°C) and 20.7°F (-6.3°C). December, with average temperatures reaching a high of 32.5°F (0.3°C) and a low of 20.7°F (-6.3°C), is 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
The most humid month is January, with an average relative humidity of 90%.
In Winchester, during the entire year, the rain falls for 133.5 days and collects up to 28.9" (734mm) of precipitation.
Months with snowfall in Winchester are January through June, September through December.
In Winchester, during the entire year, snow falls for 112.2 days and aggregates up to 105.79" (2687mm) of snow.
February is the month with the most snowfall. Snow falls for 19 days and accumulates 23.11" (587mm) of snow.
February and December, with an average maximum UV index of 1, are months with the lowest UV index.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.
April is the month with the most rainfall. Rain falls for 17.8 days and accumulates 3.58" (91mm) of precipitation.
The month with the longest days is June, with an average of 15h and 42min of daylight.
The month with the least rainfall is July, when the rain falls for 7.8 days and typically collects 0.63" (16mm) of precipitation.
In Winchester, Idaho, snow does not fall in July and August.
The month with the highest UV index is July, with an average maximum UV index of 6.
August, having an average high-temperature of 82°F (27.8°C) and an average low-temperature of 54.7°F (12.6°C), is the warmest month in Winchester.
August is the least humid month, with an average relative humidity of 44%.
August has the most sunshine of the year in Winchester, Idaho, with an average of 11.9h of sunshine.
With its average high temperature of 32.5°F (0.3°C) and a low of 20.7°F (-6.3°C), December is regarded as the coldest month.
The month with the shortest days is December, with an average of 8h and 42min of daylight.
December has the least sunshine of the year, with an average of 4.2h of sunshine.
Average temperature
Winchester, ID
The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (32.5°F).
The month with the highest average low temperature is August (54.7°F).
The coldest month (with the lowest average low temperature) is December (20.7°F).
Average pressure
Winchester, ID
- Average pressure in January:
30.21"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
30.01"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.93"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.19"Hg
The month with the highest atmospheric pressure is January (30.21"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).
Average wind speed
Winchester, ID
- Average wind speed in January:
4.8mph - Average wind speed in February:
4.8mph - Average wind speed in March:
4.8mph - Average wind speed in April:
4.7mph - Average wind speed in May:
4mph - Average wind speed in June:
3.9mph
- Average wind speed in July:
3.8mph - Average wind speed in August:
3.6mph - Average wind speed in September:
3.7mph - Average wind speed in October:
4.2mph - Average wind speed in November:
4.8mph - Average wind speed in December:
4.7mph
The windiest months (with the highest average wind speed) are January, February, March and November (4.8mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity
Winchester, ID
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (44%).
Average rainfall
Winchester, ID
- Average rainfall in January:
2.6" - Average rainfall in February:
3.35" - Average rainfall in March:
3.39" - Average rainfall in April:
3.58" - Average rainfall in May:
3.11" - Average rainfall in June:
2.56"
The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is July (0.63").
Average rainfall days
Winchester, ID
- Average rainfall days in January:
6 days - Average rainfall days in February:
7.3 days - Average rainfall days in March:
14 days - Average rainfall days in April:
17.8 days - Average rainfall days in May:
17.6 days - Average rainfall days in June:
15 days
- Average rainfall days in July:
7.8 days - Average rainfall days in August:
6.9 days - Average rainfall days in September:
9.8 days - Average rainfall days in October:
13.4 days - Average rainfall days in November:
11.3 days - Average rainfall days in December:
6.6 days
The month with the highest number of rainy days is April (17.8 days).
The month with the least rainy days is January (6 days).
Average snowfall
Winchester, ID
- Average snowfall in January:
19.53" - Average snowfall in February:
23.11" - Average snowfall in March:
17.28" - Average snowfall in April:
8.94" - Average snowfall in May:
2.4" - Average snowfall in June:
0.98"
The month with the highest snowfall is February (23.11").
The months with the least snowfall are July and August (0").
Average snowfall days
Winchester, ID
- Average snowfall days in January:
19.2 days - Average snowfall days in February:
19 days - Average snowfall days in March:
18.9 days - Average snowfall days in April:
12.1 days - Average snowfall days in May:
4.2 days - Average snowfall days in June:
0.9 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.3 days - Average snowfall days in October:
3.8 days - Average snowfall days in November:
13.9 days - Average snowfall days in December:
19.9 days
The month with the highest number of snowfall days is December (19.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Winchester, ID
- Average daylight in January:
9h and 6min - Average daylight in February:
10h and 24min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 36min - Average daylight in May:
15h and 0min - Average daylight in June:
15h and 42min
- Average daylight in July:
15h and 24min - Average daylight in August:
14h and 6min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 24min - Average daylight in December:
8h and 42min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in January:
4h and 18min - Average sunshine in February:
4h and 24min - Average sunshine in March:
5h and 42min - Average sunshine in April:
8h and 18min - Average sunshine in May:
9h and 36min - Average sunshine in June:
10h and 12min
- Average sunshine in July:
11h and 42min - Average sunshine in August:
11h and 54min - Average sunshine in September:
9h and 54min - Average sunshine in October:
6h and 42min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 12min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days
Winchester, ID
- Average sunshine days in January:
11.6 days - Average sunshine days in February:
8.2 days - Average sunshine days in March:
7.3 days - Average sunshine days in April:
7.6 days - Average sunshine days in May:
10.7 days - Average sunshine days in June:
12.7 days
- Average sunshine days in July:
21.2 days - Average sunshine days in August:
21 days - Average sunshine days in September:
18.1 days - Average sunshine days in October:
15.1 days - Average sunshine days in November:
11.2 days - Average sunshine days in December:
10.7 days
The month with the most sunshine days is July (21.2 days).
The month with the least sunshine days is March (7.3 days).
Average UV index
Winchester, ID
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover
Winchester, ID
The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility
Winchester, 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 (4mi).
