April weather forecastEureka, CA
April
Weather in April
April is a moderate spring month in Eureka, California, with an average temperature fluctuating between 55.9°F (13.3°C) and 44.2°F (6.8°C).Temperature
Eureka's shift into April sets the average high-temperature at a mild 55.9°F (13.3°C), a figure that deviates only slightly from March's 53.8°F (12.1°C). During the month of April, the nighttime temperature falls to an average of 44.2°F (6.8°C).Humidity
In Eureka, the average relative humidity in April is 80%.Rainfall
In Eureka, during April, the rain falls for 8.6 days and regularly aggregates up to 0.71" (18mm) of precipitation. In Eureka, during the entire year, the rain falls for 77.3 days and collects up to 8.58" (218mm) of precipitation.Snowfall
January, March through December are months without snowfall.Daylight
The average length of the day in April is 13h and 20min.On the first day of April, sunrise is at 6:58 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 8:12 pm PDT.
Sunshine
In Eureka, the average sunshine in April is 9.1h.UV index
In Eureka, the average daily maximum UV index in April is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In April, the maximum UV index of 4 suggests this advice:
Take necessary precautions - Protection from skin and eye injury is mandatory. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Eureka, CA
- Average high temperature in April: 55.9°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 April: 44.2°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 April
Eureka, CA
- Average pressure in April: 30.07"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 April
Eureka, CA
- Average wind speed in April: 8.6mph
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 April
Eureka, CA
- Average humidity in April: 80%
The month with the highest relative humidity is March (82%).
The month with the lowest relative humidity is October (76%).
Average rainfall in April
Eureka, CA
- Average rainfall in April: 0.71"
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 April
Eureka, CA
- Average rainfall days in April: 8.6 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 April
Eureka, CA
- Average snowfall in April: 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 April
Eureka, CA
- Average snowfall days in April: 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 April /
Average sunshine in April
Eureka, CA
- Average daylight in April: 13h and 18min
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 April: 9h and 6min
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 April
Eureka, CA
- Average sunshine days in April: 20.1 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 April
Eureka, CA
- Average UV index in April: 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 April
Eureka, CA
- Average cloud cover in April: 39
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 April
Eureka, CA
- Average visibility in April: 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).
