Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May brings a rise in the average high-temperature, transitioning from April's cool 54.5°F (12.5°C) to a refreshing 63.9°F (17.7°C). Troy documents a marked decrease from day to night, with an average low of 41.5°F (5.3°C) throughout May.Humidity
In May, the average relative humidity in Troy is 70%.Rainfall
In Troy, in May, it is raining for 16.2 days, with typically 2.28" (58mm) of accumulated precipitation. In Troy, during the entire year, the rain falls for 143.2 days and collects up to 20.51" (521mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. May is the last month it regularly snows in Troy. During 0.3 snowfall days, in May, Troy aggregates 0.08" (2mm) of snow. In Troy, during the entire year, snow falls for 60.2 days and aggregates up to 47.24" (1200mm) of snow.Daylight
In May, the average length of the day in Troy is 15h and 4min.On the first day of May, sunrise is at 5:30 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 4:56 am and sunset at 8:32 pm PDT.
Sunshine
The average sunshine in May is 10.1h.UV index
In Troy, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: A maximum high UV index of 4 in May translates into the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature in Troy?
What is the average humidity in May in Troy?
How many days does it rain in May in Troy?
What is the last month it snows in Troy?
What is the average length of the day in May in Troy?
When is the sunrise / sunset in May in Troy?
How long on average sun shines in May in Troy?
How high is the UV index in May in Troy?
Average temperature in May
Troy, ID
- Average high temperature in May: 63.9°F
The warmest month (with the highest average high temperature) is August (83.7°F).
The month with the lowest average high temperature is December (34°F).
- Average low temperature in May: 41.5°F
The month with the highest average low temperature is August (58.1°F).
The coldest month (with the lowest average low temperature) is December (24.1°F).
Average pressure in May
Troy, ID
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in May
Troy, ID
- Average wind speed in May: 5.1mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest months (with the lowest average wind speed) are July, August and September (4.8mph).
Average humidity in May
Troy, ID
- Average humidity in May: 70%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (40%).
Average rainfall in May
Troy, ID
- Average rainfall in May: 2.28"
The wettest month (with the highest rainfall) is December (2.68").
The driest months (with the least rainfall) are July and August (0.47").
Average rainfall days in May
Troy, ID
- Average rainfall days in May: 16.2 days
The month with the highest number of rainy days is April (18.1 days).
The months with the least rainy days are July and August (5.9 days).
Average snowfall in May
Troy, ID
- Average snowfall in May: 0.08"
The month with the highest snowfall is January (12.56").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Troy, ID
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is December (14.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Troy, ID
- Average daylight in May: 15h and 1min
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 36min).
- Average sunshine in May: 10h and 1min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 4h and 30min).
Average sunshine days in May
Troy, ID
- Average sunshine days in May: 12.4 days
The month with the most sunshine days is July (23.3 days).
The month with the least sunshine days is February (9.2 days).
Average UV index in May
Troy, ID
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in May
Troy, ID
- Average cloud cover in May: 33
The month with the most cloud cover is February (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in May
Troy, ID
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (4mi).
Troy, Idaho, USA
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