Winchester
Idaho, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Winchester, ID

The last month of the spring, May, is a comfortable month in W"ter, Idaho, with average temperature varying between 61.9°F (16.6°C) and 38.8°F (3.8°C).

Temperature

In May, the average high-temperature rises, from a cool 52°F (11.1°C) in April, to a comfortable 61.9°F (16.6°C). In W"ter, the average low-temperature is 38.8°F (3.8°C).

Humidity

In W"ter, the average relative humidity is 73%.

Rainfall

In W"ter, in May, during 17.6 rainfall days, 3.11" (79mm) of precipitation is typically accumulated. Throughout the year, in W"ter, Idaho, there are 133.5 rainfall days, and 28.9" (734mm) of precipitation is accumulated.

Snowfall

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

Daylight

In May, the average length of the day in W"ter, Idaho, is 15h.

Sunshine

In W"ter, the average sunshine is 9.6h.

UV index

The average daily maximum UV index in W"ter, Idaho, is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 4 transform into the following instructions:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in May in W"ter?

The average high-temperature, in May, in W"ter, Idaho, is 61.9°F (16.6°C), while the average low-temperature is 38.8°F (3.8°C).

What is the average humidity in May in W"ter?

In May, the average relative humidity is 73%.

How much does it rain in W"ter in May?

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

How much does it snow in W"ter in May?

In May, in W"ter, Idaho, it is snowing for 4.2 days. Throughout May, 2.4" (61mm) of snow is accumulated.

How many hours of daylight does W"ter have in May?

In W"ter, Idaho, the average length of the day in May is 15h.

How many hours of sunshine does W"ter have in May?

In May, the average sunshine in W"ter, Idaho, is 9.6h.

How high is the UV index in May in W"ter?

The average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a medium health risk from unsafe exposure to the Sun's UV rays.
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).

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%).

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").

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).

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

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

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).
Months with the least snowfall days are July and August (0 days).

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

The month with the longest days is June (Average daylight: 15.7h).
The month with the shortest days is December (Average daylight: 8.7h).

  • Average sunshine in May: 9.6h

The month with the most sunshine is August (Average sunshine: 11.9h).
The month with the least sunshine is December (Average sunshine: 4.2h).

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).
Months with the lowest UV index are February and December (UV index 1).