Eureka
The tables below display average monthly climate and weather indicators in Eureka California.
Temperature by: Fahrenheit / Centigrade
| Eureka Temperature |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Avg. Temperature | 48.0 | 49.3 | 49.4 | 50.2 | 52.8 | 55.5 | 57.0 | 57.9 | 57.3 | 54.7 | 51.7 | 48.4 | 52.7 |
| Avg. Max Temperature | 54.4 | 55.6 | 55.4 | 55.9 | 57.9 | 60.3 | 61.8 | 62.6 | 63.0 | 60.8 | 58.1 | 54.8 | 58.4 |
| Avg. Min Temperature | 41.5 | 42.9 | 43.4 | 44.3 | 47.5 | 50.6 | 52.3 | 53.1 | 51.6 | 48.6 | 45.2 | 42.0 | 46.9 |
| Days with Max Temp of 90 F or Higher | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Days with Min Temp Below Freezing | 2.0 | 1.0 | < 0.5 | < 0.5 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | < 0.5 | < 0.5 | 1.0 | 4.0 |
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| Eureka Heating and Cooling |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Heating Degree Days | 527 | 440 | 484 | 444 | 378 | 285 | 248 | 223 | 234 | 319 | 399 | 515 | 4496 |
| Cooling Degree Days | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
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| Eureka Precipitation |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Precipitation (inches) | 6.0 | 4.7 | 5.3 | 2.9 | 1.4 | 0.5 | 0.1 | 0.5 | 0.9 | 2.7 | 6.4 | 6.0 | 37.5 |
| Days with Precipitation 0.01 inch or More | 16.0 | 14.0 | 16.0 | 12.0 | 9.0 | 5.0 | 2.0 | 3.0 | 5.0 | 9.0 | 13.0 | 16.0 | 119 |
| Monthly Snowfall (inches) | 0.1 | 0.1 | < 0.05 | < 0.05 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | < 0.05 | 0.2 |
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| Other Eureka Weather Indicators |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Average Wind Speed | 6.9 | 7.2 | 7.6 | 8.0 | 7.9 | 7.4 | 6.8 | 5.8 | 5.5 | 5.6 | 6.0 | 6.4 | 6.8 |
| Clear Days | 6.0 | 5.0 | 6.0 | 6.0 | 6.0 | 7.0 | 7.0 | 6.0 | 9.0 | 8.0 | 6.0 | 6.0 | 78.0 |
| Partly Cloudy Days | 6.0 | 6.0 | 8.0 | 8.0 | 10.0 | 10.0 | 11.0 | 11.0 | 9.0 | 9.0 | 7.0 | 6.0 | 100 |
| Cloudy Days | 19.0 | 17.0 | 18.0 | 16.0 | 15.0 | 13.0 | 14.0 | 15.0 | 13.0 | 14.0 | 17.0 | 18.0 | 188 |
| Percent of Possible Sunshine | 43.0 | 46.0 | 52.0 | 57.0 | 58.0 | 59.0 | 55.0 | 51.0 | 55.0 | 50.0 | 44.0 | 41.0 | 51.0 |
| Avg. Relative Humidity | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
Weather information for other cities in California