Click on each chart for more information. Based on this score, the best time of year to visit Eureka for hot-weather activities is from early September to early October, with a peak score in the second week of September. The estimated value at Eureka is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Eureka and a given station. The stations contributing to this reconstruction are: Arcata-Eureka Airport (94%, 20 kilometers, north) and Lonnie Pool Field Weaverville Airport (6%, 105 kilometers, east). The warm season lasts for 3.0 months, from July 13 to October 12, with an average daily high temperature above 62°F. The most rain falls during the 31 days centered around December 12, with an average total accumulation of 9.0 inches. The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. The lowest monthly average temperature in Eureka for January is 44 degrees The most monthly precipitation in Eureka occurs in December with 11.4 inches The air quality index in Eureka is 46% better than the national average The pollution index in Eureka is 11% worse than the national average The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds. Average Weather in Eureka California, United States In Eureka, the summers are cool, dry, and mostly clear and the winters are long, cold, wet, windy, and mostly cloudy. The transitions to and from daylight saving time are indicated by the 'DST' labels. The percentage of time spent at various humidity comfort levels, categorized by dew point. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. The black line is the percentage chance that a given day is within the growing season. The predominant average hourly wind direction in Eureka varies throughout the year. The chance of wet days in Eureka varies significantly throughout the year. Daylight saving time (DST) is observed in Eureka during 2020, starting in the spring on March 8, lasting 7.8 months, and ending in the fall on November 1. Critical Fire Weather Threats Persist in the Southwest; Storms and Heavy Rain in the Western Gulf. The windier part of the year lasts for 3.1 months, from April 19 to July 22, with average wind speeds of more than 8.8 miles per hour. The wind is most often from the north for 8.2 months, from March 10 to November 17, with a peak percentage of 81% on July 17. Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere). The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than. The cloudier part of the year begins around October 16 and lasts for 7.5 months, ending around June 1. The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands. See the current Eureka, CA weather and a 5 day forecast. The rainy period of the year lasts for 9.4 months, from September 7 to June 19, with a sliding 31-day rainfall of at least 0.5 inches. 6.84 inch: 8.12 inch: Total snowfall Total snowfall : 0.00 inch: 0 inch: Highest max temperature Highest max temp. The shaded overlays indicate night and civil twilight. Measurable precipitation falls on an average of 127.5 days each year, concentrated heavily from October to April. To characterize how pleasant the weather is in Eureka throughout the year, we compute two travel scores. The windiest day of the year is June 22, with an average hourly wind speed of 10.0 miles per hour. support@__remove_this_part__weatherspark.com. Zone Forecast Product for California. Eureka averages 1 inches of snow per year. The US average is 38 inches of rain per year. The length of the day in Eureka varies significantly over the course of the year. high : Average high in ºF - Av.low : Average low in ºF - Av. The brightest day of the year is June 29, with an average of 8.1 kWh. Within 50 miles contains large variations in elevation (7,359 feet). This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The average hourly temperature, color coded into bands. The brighter period of the year lasts for 3.3 months, from May 16 to August 25, with an average daily incident shortwave energy per square meter above 6.8 kWh. precip. The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day. To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. : Hours of sunshine, Hi : Average high in ºF - Lo : Average low in ºF - Pre. 44.3 ºF: 41 ºF: Total precipitation Total precip. The wind is most often from the south for 3.8 months, from November 17 to March 10, with a peak percentage of 42% on January 1. Based on this score, the best time of year to visit Eureka for general outdoor tourist activities is from early July to early September, with a peak score in the first week of August. This is an average forecast over a … The thin dotted lines are the corresponding average perceived temperatures. The wetter season lasts 6.1 months, from October 22 to April 25, with a greater than 24% chance of a given day being a wet day. From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night. Mean Temp: 51 °F. Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations. low temp. For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. ZFPEKA. Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter. Eureka is located near a large body of water (e.g., ocean, sea, or large lake). 318 AM PST Sun Nov 29 2020. This report illustrates the typical weather in Eureka, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. high temp. We assume no responsibility for any decisions made on the basis of the content presented on this site. Zone Forecast Product for California. MERRA-2 Modern-Era Retrospective Analysis. This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Latest forecast here. The thin dotted line is the corresponding average liquid-equivalent snowfall. Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory. Over the course of the year, the temperature typically varies from 42°F to 64°F and is rarely below 33°F or above 71°F. The earliest sunrise is at 5:44 AM on June 14, and the latest sunrise is 2 hours, 2 minutes later at 7:46 AM on October 31. The calmest day of the year is September 24, with an average hourly wind speed of 7.7 miles per hour. National Weather Service Eureka CA. The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day). The chance of a wet day peaks at 46% on December 3. Average precipitation in : Av. 238 PM PDT Fri Oct 30 2020. Average Weather in November in Eureka California, United States. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 46% on February 28. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.