Eureka, California
Eureka is a small city in California in the United States, and the county seat of Humboldt County. In 2020, 26,512 people lived there.[1] It is 280 miles (450 km) north of San Francisco.
Climate
Eureka has a very mild temperate climate with only very small temperature fluctuations between summer and winter. This is due to the cool California Current, whose water temperature is between 53 °F (11.7 °C) and 60 °F (16 °C) all year round. Under the Köppen climate classification, Eureka has a cool-summer Mediterranean climate (Csb), due to the low rainfall during summer.
The average summer temperatures in Eureka are much cooler than in New York City and Istanbul, which are on the same latitude. Summer temperatures are unusually cool for the 40th latitude, and are similar to those of southern Alaska, Scotland, Northern Ireland and Tierra del Fuego in the extreme south of Chile and Argentina, which are far north and south of the 50th latitude. The average winter temperatures are also much milder than in New York and Istanbul, and in contrast to these two cities, frost and snow do not occur every year. Snow is particularly rare and falls at most once or twice a decade.
| Climate data for Eureka, California (NWS Forecast Office, Woodley Island), 1981–2010 normals,[a] extremes 1886–present | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °F (°C) | 78.0 (25.56) |
85.0 (29.44) |
78.0 (25.56) |
80.0 (26.67) |
84.0 (28.89) |
85.0 (29.44) |
77.0 (25) |
82.0 (27.78) |
87.0 (30.56) |
87.0 (30.56) |
81.0 (27.22) |
77.0 (25) |
87 (-17.78) |
| Average high °F (°C) | 55.6 (13.11) |
56.1 (13.39) |
56.7 (13.72) |
57.7 (14.28) |
60.1 (15.61) |
62.2 (16.78) |
63.4 (17.44) |
64.3 (17.94) |
63.7 (17.61) |
61.7 (16.5) |
58.0 (14.44) |
55.0 (12.78) |
59.6 (15.33) |
| Daily mean °F (°C) | 48.3 (9.06) |
48.9 (9.39) |
49.7 (9.83) |
50.9 (10.5) |
53.8 (12.11) |
56.1 (13.39) |
57.7 (14.28) |
58.5 (14.72) |
57.0 (13.89) |
54.4 (12.44) |
50.8 (10.44) |
47.8 (8.78) |
52.9 (11.61) |
| Average low °F (°C) | 41.1 (5.06) |
41.7 (5.39) |
42.6 (5.89) |
44.1 (6.72) |
47.5 (8.61) |
50.1 (10.06) |
52.0 (11.11) |
52.8 (11.56) |
50.4 (10.22) |
47.1 (8.39) |
43.5 (6.39) |
40.6 (4.78) |
46.1 (7.83) |
| Record low °F (°C) | 20.0 (-6.67) |
24.0 (-4.44) |
29.0 (-1.67) |
31.0 (-0.56) |
35.0 (1.67) |
40.0 (4.44) |
43.0 (6.11) |
44.0 (6.67) |
36.0 (2.22) |
32.0 (0) |
27.0 (-2.78) |
21.0 (-6.11) |
20 (-17.78) |
| Precipitation inches (mm) | 6.50 (165.1) |
5.63 (143) |
5.30 (134.6) |
3.32 (84.3) |
1.78 (45.2) |
0.75 (19.1) |
0.18 (4.6) |
0.31 (7.9) |
0.59 (15) |
2.24 (56.9) |
5.61 (142.5) |
8.12 (206.2) |
40.33 (1,024.4) |
| Snowfall inches (cm) | 0 (0) |
0.2 (0.5) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0.2 (0.5) |
| % Humidity | 82 | 81 | 82 | 82 | 83 | 85 | 87 | 88 | 85 | 83 | 83 | 82 | 83.6 |
| Avg. precipitation days (≥ 0.01 in) | 16.6 | 14.9 | 16.2 | 13.4 | 9.1 | 5.8 | 2.7 | 3.2 | 4.4 | 8.5 | 15.2 | 17.5 | 127.5 |
| Sunshine hours | 140.1 | 143.7 | 207.4 | 253.1 | 280.5 | 277.7 | 273.4 | 236.5 | 220.3 | 175.8 | 131.3 | 126.2 | 2,466.0 |
| Source #1: NOAA (sun and relative humidity 1961–1990)[2][3][4] | |||||||||||||
| Source #2: Time and Date (humidity and dew point 2005-2015)[5] | |||||||||||||
Eureka, California Media
Mill yard across the bay from Eureka
The Carson Mansion (1886) in Eureka's Old Town
Illustrated map of Eureka (1902)
The Tudor Revival–style Eureka Inn (1922)
Dots are from 1985-2003 earthquakes with magnitude greater than 2 near Eureka and Ferndale in northern California. Major roads in white; known active faults in brown. Green boxes refer to active plate interations G-NA = Gorda/North America Plates, G-P = Gorda/Pacific Plates and P-NA=Pacific/North America Plates.
Monthly Climate Normals (1991-2020) - Eureka Area, CA(ThreadEx)
Bookstore in Eureka's Old Town
The Eureka Theatre (built in 1937) is on the National Register of Historic Places. It is listed as a Streamline Moderne Theater.
Carson Block Building
Eureka's Historic Old Town. View is to the east on 2nd Street, which was the equivalent of Main St. in the Victorian era.
_-_Eureka_Area,_CA(ThreadEx).svg)
Notes
- ↑ Mean monthly maxima and minima (i.e. the highest and lowest temperature readings during an entire month or year) calculated based on data at said location from 1981 to 2010.
References
- ↑ "QuickFacts: Eureka city, California". U.S. Census Bureau. Retrieved July 31, 2023.
- ↑ "NowData – NOAA Online Weather Data". National Oceanic and Atmospheric Administration. Retrieved September 23, 2013.
- ↑ "CA Eureka WFO Woodley Island". National Oceanic and Atmospheric Administration. Retrieved September 23, 2015.
- ↑ "WMO Climate Normals for Eureka/WSO City, CA 1961–1990". National Oceanic and Atmospheric Administration. Retrieved September 23, 2015.
- ↑ "Annual Weather Averages in Eureka". Time and Date. Retrieved July 19, 2021.
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