May weather forecastPierce, ID
May
Weather in May
The last month of the spring, May, is a refreshing month in Pierce, Idaho, with an average temperature ranging between max 64.4°F (18°C) and min 39.6°F (4.2°C).Temperature
The arrival of May brings a temperature shift, with the average high-temperature escalating from a fresh 54.5°F (12.5°C) in April to an enjoyable 64.4°F (18°C). From the heights of the May heat, Pierce records a mean nighttime low of 39.6°F (4.2°C).Humidity
In Pierce, the average relative humidity in May is 73%.Rainfall
In Pierce, during May, the rain falls for 13 days and regularly aggregates up to 1.65" (42mm) of precipitation. Throughout the year, in Pierce, there are 146.2 rainfall days, and 21.65" (550mm) of precipitation is accumulated.Snowfall
In Pierce, snow does not fall in May through September.Daylight
In May, the average length of the day is 15h and 2min.On the first day of May, sunrise is at 5:27 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 4:54 am and sunset at 8:28 pm PDT.
Sunshine
In May, the average sunshine is 9.9h.UV index
The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 4 during May morphs into the following directions:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Pierce, ID
- Average high temperature in May: 64.4°F
The warmest month (with the highest average high temperature) is August (84.7°F).
The month with the lowest average high temperature is December (34.2°F).
- Average low temperature in May: 39.6°F
The month with the highest average low temperature is August (53.2°F).
The coldest month (with the lowest average low temperature) is December (22.8°F).
Average pressure in May
Pierce, ID
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).
Average wind speed in May
Pierce, ID
- Average wind speed in May: 4.1mph
The windiest month (with the highest average wind speed) is April (4.6mph).
The calmest month (with the lowest average wind speed) is September (3.7mph).
Average humidity in May
Pierce, 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 (46%).
Average rainfall in May
Pierce, ID
- Average rainfall in May: 1.65"
The wettest months (with the highest rainfall) are January and March (2.8").
The driest month (with the least rainfall) is August (0.31").
Average rainfall days in May
Pierce, ID
- Average rainfall days in May: 13 days
The month with the highest number of rainy days is March (19 days).
The month with the least rainy days is August (4.4 days).
Average snowfall in May
Pierce, ID
- Average snowfall in May: 0"
The month with the highest snowfall is February (6.57").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Pierce, ID
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is December (10.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Pierce, ID
- Average daylight in May: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in May: 9h and 54min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in May
Pierce, ID
- Average sunshine days in May: 16.3 days
The month with the most sunshine days is July (24.7 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in May
Pierce, 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, November and December (UV index 1).
Average cloud cover in May
Pierce, ID
- Average cloud cover in May: 35
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in May
Pierce, ID
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
