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
Eureka experiences an average high-temperature of a still refreshing 59.9°F (15.5°C) in May, subtly different from April's 55.9°F (13.3°C). The month of May records an average low-temperature of 46.4°F (8°C).Humidity
In Eureka, the average relative humidity in May is 81%.Rainfall
In May, in Eureka, the rain falls for 5.5 days. Throughout May, 0.67" (17mm) of precipitation is accumulated. Throughout the year, there are 77.3 rainfall days, and 8.58" (218mm) of precipitation is accumulated.Snowfall
January, March through December are months without snowfall.Daylight
In Eureka, the average length of the day in May is 14h and 29min.On the first day of the month, sunrise is at 6:13 am and sunset at 8:13 pm. On the last day of May, in Eureka, sunrise is at 5:47 am and sunset at 8:41 pm PDT.
Sunshine
In Eureka, the average sunshine in May is 10h.UV index
In May, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: During May, 4 as the daily maximum UV index converts into the following advice:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Frequently asked questions
What is the temperature in May in Eureka?
What is the average humidity in May in Eureka?
How much does it rain in Eureka in May?
When it does not snow in Eureka?
What is the average length of the day in May in Eureka?
What time are sunrise and sunset in May in Eureka?
How long on average sun shines in May in Eureka?
What is the UV index reading in May in Eureka?
Average temperature in May
Eureka, CA
- Average high temperature in May: 59.9°F
The warmest month (with the highest average high temperature) is August (68.4°F).
The months with the lowest average high temperature are February and December (52.9°F).
- Average low temperature in May: 46.4°F
The month with the highest average low temperature is August (52.9°F).
The coldest month (with the lowest average low temperature) is February (42.4°F).
Average pressure in May
Eureka, CA
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed in May
Eureka, CA
- Average wind speed in May: 8.2mph
The windiest month (with the highest average wind speed) is March (9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in May
Eureka, CA
- Average humidity in May: 81%
The month with the highest relative humidity is March (82%).
The month with the lowest relative humidity is October (76%).
Average rainfall in May
Eureka, CA
- Average rainfall in May: 0.67"
The wettest month (with the highest rainfall) is December (1.73").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in May
Eureka, CA
- Average rainfall days in May: 5.5 days
The month with the highest number of rainy days is March (11.2 days).
The month with the least rainy days is August (1.7 days).
Average snowfall in May
Eureka, CA
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in May
Eureka, CA
- Average snowfall days in May: 0 days
The months with the highest number of snowfall days are February and December (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in May /
Average sunshine in May
Eureka, CA
- Average daylight in May: 14h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 10h and 0min
The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in May
Eureka, CA
- Average sunshine days in May: 23.3 days
The month with the most sunshine days is July (27.7 days).
The month with the least sunshine days is March (17.9 days).
Average UV index in May
Eureka, CA
- 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, March, November and December (UV index 3).
Average cloud cover in May
Eureka, CA
- Average cloud cover in May: 34
The month with the most cloud cover is March (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 16).
Average visibility in May
Eureka, CA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Eureka, California, USA
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