May weather forecast
Winchester, ID

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Weather in May

The last month of the spring, May, is an enjoyable month in Winchester, Idaho, with an average temperature ranging between max 61.9°F (16.6°C) and min 38.8°F (3.8°C).

Temperature

An upsurge in temperatures occurs as April gives way to May, with average highs shifting from a fresh 52°F (11.1°C) to an enjoyable 61.9°F (16.6°C). Winchester observes a dramatic plunge from daytime highs in May, settling at an average low-temperature of 38.8°F (3.8°C).

Humidity

In May, the average relative humidity in Winchester is 73%.

Rainfall

In Winchester, Idaho, in May, it is raining for 17.6 days, with typically 3.11" (79mm) of accumulated precipitation. Throughout the year, in Winchester, there are 133.5 rainfall days, and 28.9" (734mm) of precipitation is accumulated.

Snowfall

January through June, September through December are months with snowfall. In May, it is snowing for 4.2 days. Throughout May, 2.4" (61mm) of snow is accumulated. Throughout the year, there are 112.2 snowfall days, and 105.79" (2687mm) of snow is accumulated.

Daylight

The average length of the day in May is 15h and 1min.
On the first day of the month, sunrise is at 5:31 am and sunset at 7:55 pm. On the last day of May, sunrise is at 4:58 am and sunset at 8:30 pm PDT.

Sunshine

In May, the average sunshine in Winchester, Idaho, is 9.6h.

UV index

In May, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: A maximum UV index of 4 in May translates into the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
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Frequently asked questions

What are the temperatures in Winchester in May?

In May, the average high-temperature and low-temperature in Winchester are 61.9°F (16.6°C) and 38.8°F (3.8°C) respectively.

What is the average humidity in May in Winchester?

The average relative humidity in May in Winchester, Idaho, is 73%.

How much does it rain in Winchester in May?

In Winchester, Idaho, in May, it is raining for 17.6 days, with typically 3.11" (79mm) of accumulated precipitation.

How many days does it snow in May in Winchester?

In Winchester, Idaho, in May, snow falls for 4.2 days, with typically accumulated 2.4" (61mm) of snow.

What is the average length of the day in May in Winchester?

In Winchester, Idaho, the average day length in May is 15h and 1min.

What time are sunrise and sunset in May in Winchester?

In May, on the first day of the month, sunrise is at 5:31 am and sunset at 7:55 pm. On the last day of the month, in Winchester, Idaho, sunrise is at 4:58 am and sunset at 8:30 pm PDT.

How long on average sun shines in May in Winchester?

The average sunshine duration in May in Winchester, Idaho, is 9.6h.

What is the UV index reading in May in Winchester?

The average daily maximum UV index in May in Winchester, Idaho, is 4. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Winchester, ID

Average temperature in May - Winchester, ID
  • Average high temperature in May: 61.9°F

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).

  • Average low temperature in May: 38.8°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).

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Average pressure in May
Winchester, ID

Average pressure in May - Winchester, ID
  • Average pressure in May: 29.96"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).

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Average wind speed in May
Winchester, ID

Average wind speed in May - Winchester, ID
  • Average wind speed in May: 4mph

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).

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Average humidity in May
Winchester, ID

Average humidity in May - Winchester, ID
  • Average humidity in May: 73%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (44%).

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Average rainfall in May
Winchester, ID

Average rainfall in May - Winchester, ID
  • Average rainfall in May: 3.11"

The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is July (0.63").

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Average rainfall days in May
Winchester, ID

Average rainfall days in May - Winchester, ID
  • Average rainfall days in May: 17.6 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).

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Average snowfall in May
Winchester, ID

Average snowfall in May - Winchester, ID
  • Average snowfall in May: 2.4"

The month with the highest snowfall is February (23.11").
The months with the least snowfall are July and August (0").

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Average snowfall days in May
Winchester, ID

Average snowfall days in May - Winchester, ID
  • Average snowfall days in May: 4.2 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).

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Average daylight in May /
Average sunshine in May
Winchester, ID

Average daylight in May / Average sunshine in May - Winchester, ID
  • Average daylight in May: 15h and 0min

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 May: 9h and 4min

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).

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Average sunshine days in May
Winchester, ID

Average sunshine days in May - Winchester, ID
  • Average sunshine days in May: 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).

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Average UV index in May
Winchester, ID

Average UV index in May - Winchester, ID
  • Average UV index in May: 4

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).

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Average cloud cover in May
Winchester, ID

Average cloud cover in May - Winchester, ID
  • Average cloud cover in May: 37

The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 13).

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Average visibility in May
Winchester, ID

Average visibility in May - Winchester, ID
  • Average visibility in May: 6mi

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).

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Winchester, Idaho, USA

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