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
The shift from April to May sees an increase in the average high-temperature, transitioning from a comfortable 63.1°F (17.3°C) to a pleasant 73°F (22.8°C). Highland registers a substantial downturn from daytime peaks throughout May nights, with an average low-temperature of 50.5°F (10.3°C).Humidity
In Highland, the average relative humidity in May is 50%.Rainfall
In Highland, in May, it is raining for 8.9 days, with typically 0.67" (17mm) of accumulated precipitation. In Highland, during the entire year, the rain falls for 102.8 days and collects up to 7.32" (186mm) of precipitation.Snowfall
April through October are months without snowfall in Highland.Daylight
In Highland, Washington, the average length of the day in May is 15h and 0min.On the first day of the month, sunrise is at 5:41 am and sunset at 8:05 pm. On the last day of May, sunrise is at 5:08 am and sunset at 8:39 pm PDT.
Sunshine
The average sunshine in May is 11.1h.UV index
The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In May, the maximum UV index of 5 suggests this advice:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Frequently asked questions
What is the temperature in May in Highland?
What is the average humidity in May in Highland?
How many days does it rain in May in Highland?
When it does not snow in Highland?
How many hours of daylight does Highland have in May?
When are sunrise and sunset in May in Highland?
How long on average sun shines in May in Highland?
How high is the UV index in May in Highland?
Average temperature in May
Highland, WA
- Average high temperature in May: 73°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is December (38.3°F).
- Average low temperature in May: 50.5°F
The month with the highest average low temperature is August (64°F).
The coldest month (with the lowest average low temperature) is December (27.9°F).
Average pressure in May
Highland, WA
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in May
Highland, WA
- Average wind speed in May: 7.5mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is December (5.8mph).
Average humidity in May
Highland, WA
- Average humidity in May: 50%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is July (35%).
Average rainfall in May
Highland, WA
- Average rainfall in May: 0.67"
The wettest months (with the highest rainfall) are March and December (0.94").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in May
Highland, WA
- Average rainfall days in May: 8.9 days
The month with the highest number of rainy days is March (13.3 days).
The month with the least rainy days is July (3.5 days).
Average snowfall in May
Highland, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.2").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Highland, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is December (3.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Highland, WA
- 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: 11h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in May
Highland, WA
- Average sunshine days in May: 19.8 days
The month with the most sunshine days is July (25.7 days).
The month with the least sunshine days is March (15.4 days).
Average UV index in May
Highland, WA
- Average UV index in May: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Highland, WA
- Average cloud cover in May: 26
The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in May
Highland, WA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Highland, Washington, USA
Weather forecast for your location
2. Allow the app to use your location
