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's arrival signals a subtle increase in average high-temperatures, moving from April's fresh 53.6°F (12°C) to a comfortable 61.3°F (16.3°C). Cathan's nights in May experience an average temperature drop to a chilly 43.7°F (6.5°C).Humidity
In Cathan, Washington, the average relative humidity in May is 78%.Rainfall
In Cathan, during May, the rain falls for 14.3 days and regularly aggregates up to 2.05" (52mm) of precipitation. In Cathan, during the entire year, the rain falls for 188.6 days and collects up to 34.92" (887mm) of precipitation.Snowfall
In Cathan, snow does not fall in May through October.Daylight
In Cathan, the average length of the day in May is 15h and 13min.On the first day of May, sunrise is at 5:48 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 5:13 am and sunset at 9:00 pm PDT.
Sunshine
The average sunshine in May in Cathan is 9.1h.UV index
In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: In May, a daily maximum UV index of 4 leads to the following instructions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Frequently asked questions
What is the temperature in May in Cathan?
What is the average humidity in May in Cathan?
How much does it rain in Cathan in May?
When it does not snow in Cathan?
Does it snow in Cathan in May?
How many hours of daylight does Cathan have in May?
When is the sunrise / sunset in May in Cathan?
How many hours of sunshine does Cathan have in May?
How high is the UV index in May in Cathan?
Average temperature in May
Cathan, WA
- Average high temperature in May: 61.3°F
The warmest month (with the highest average high temperature) is August (72.3°F).
The month with the lowest average high temperature is December (41.7°F).
- Average low temperature in May: 43.7°F
The month with the highest average low temperature is August (51.6°F).
The coldest month (with the lowest average low temperature) is February (33.8°F).
Average pressure in May
Cathan, WA
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in May
Cathan, WA
- Average wind speed in May: 3.9mph
The windiest months (with the highest average wind speed) are January and November (5.6mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).
Average humidity in May
Cathan, WA
- Average humidity in May: 78%
The months with the highest relative humidity are January, February, November and December (85%).
The month with the lowest relative humidity is July (73%).
Average rainfall in May
Cathan, WA
- Average rainfall in May: 2.05"
The wettest month (with the highest rainfall) is November (4.92").
The driest month (with the least rainfall) is July (0.51").
Average rainfall days in May
Cathan, WA
- Average rainfall days in May: 14.3 days
The month with the highest number of rainy days is March (20.9 days).
The month with the least rainy days is August (6.9 days).
Average snowfall in May
Cathan, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (4.45").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Cathan, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Cathan, WA
- Average daylight in May: 15h and 1min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in May: 9h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days in May
Cathan, WA
- Average sunshine days in May: 14.1 days
The month with the most sunshine days is August (22 days).
The month with the least sunshine days is March (8.1 days).
Average UV index in May
Cathan, WA
- Average UV index in May: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in May
Cathan, WA
- Average cloud cover in May: 42
The month with the most cloud cover is December (Cloud cover 57).
The months with the least cloud cover are July and August (Cloud cover 26).
Average visibility in May
Cathan, WA
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, November and December (5mi).
Cathan, Washington, USA
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