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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The Lost Fisherman's Memorial in scenic surroundings of Eureka, California
Weather in January
January, the same as December, is another fresh winter month in Eureka, California, with an average temperature fluctuating between 53.8°F (12.1°C) and 44.2°F (6.8°C). The dawn of January sees an average high-temperature of a still cool 53.8°F (12.1°C), subtly contrasting with December's 52.9°F (11.6°C). Weather in January »
Weather in February
February, the last month of the winter in Eureka, is another cool month, with an average temperature varying between 52.9°F (11.6°C) and 42.4°F (5.8°C). Eureka experiences its coldest period in February and December, averaging a high-temperature of 52.9°F (11.6°C). Weather in February »
Weather in March
The first month of the spring, March, is still a cool month in Eureka, California, with an average temperature varying between 43.2°F (6.2°C) and 53.8°F (12.1°C). The dawn of March sees an average high-temperature of a still fresh 53.8°F (12.1°C), subtly contrasting with February's 52.9°F (11.6°C). Weather in March »
Weather in April
April is a mild spring month in Eureka, California, with an average temperature ranging between min 44.2°F (6.8°C) and max 55.9°F (13.3°C). April begins with an average high-temperature of a moderate 55.9°F (13.3°C), reflecting close similarity to the preceding month. Weather in April »
Weather in May
May, the last month of the spring in Eureka, is also a moderate month, with an average temperature ranging between min 46.4°F (8°C) and max 59.9°F (15.5°C). 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). Weather in May »
Weather in June
June, the first month of the summer in Eureka, is a refreshing month, with an average temperature ranging between min 49.6°F (9.8°C) and max 63.5°F (17.5°C). Upon the onset of June, Eureka witnesses an average high-temperature of a still refreshing 63.5°F (17.5°C), showing a close resemblance to the prior month. Weather in June »
Weather in July
July, the same as June, is another comfortable summer month in Eureka, California, with an average temperature varying between 67.6°F (19.8°C) and 52.3°F (11.3°C). Eureka's weather in July displays an average high-temperature of a still refreshing 67.6°F (19.8°C), showing minor disparity from June's 63.5°F (17.5°C). Weather in July »
Weather in August
The last month of the summer, August, is an agreeable month in Eureka, California, with temperature in the range of an average low of 52.9°F (11.6°C) and an average high of 68.4°F (20.2°C). Eureka's temperature records reveal August as the warmest month, marked by average highs of 68.4°F (20.2°C) and lows of 52.9°F (11.6°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a pleasant month in Eureka, California, with an average temperature fluctuating between 68.2°F (20.1°C) and 52.3°F (11.3°C). Eureka marks the start of September with an average high-temperature of a still agreeable 68.2°F (20.1°C), hinting at a slight fluctuation from August's 68.4°F (20.2°C). Weather in September »
Weather in October
October, like September, in Eureka, California, is another refreshing autumn month, with an average temperature ranging between min 50°F (10°C) and max 62.6°F (17°C). Eureka's weather subtly changes with the onset of October, barely falling from an agreeable 68.2°F (20.1°C) in September to a refreshing 62.6°F (17°C). Weather in October »
Weather in November
The last month of the autumn, November, is another mild month in Eureka, California, with temperature in the range of an average low of 46.4°F (8°C) and an average high of 56.5°F (13.6°C). A mild drop in Eureka's average high-temperature is observed in November, transitioning from a comfortable 62.6°F (17°C) in October to a moderate 56.5°F (13.6°C). Weather in November »
Weather in December
December, the first month of the winter in Eureka, is also a fresh month, with temperature in the range of an average low of 43.7°F (6.5°C) and an average high of 52.9°F (11.6°C). Eureka's lowest temperatures tend to occur in February and December, with an average high-temperature of 52.9°F (11.6°C). Weather in December »
[Resources]Frequently asked questions
How much does it rain in Eureka?
Throughout the year, in Eureka, there are 77.3 rainfall days, and 8.58" (218mm) of precipitation is accumulated.
When it does not snow in Eureka?
January, March through December are months without snowfall.
How much does it snow in Eureka?
Throughout the year, 0.04" (1mm) of snow is accumulated.
When is the lowest UV index in Eureka?
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 3.
What is the coldest time of year in Eureka?
The yearly lowest temperatures occur in February and December, averaging a high-temperature of 52.9°F (11.6°C).
When does it snow in Eureka?
February is the only month when snow falls in Eureka, California.
What is the snowiest month in Eureka?
February is the month with the most snowfall in Eureka. Snow falls for 0.1 days and accumulates 0.04" (1mm) of snow.
What is the most humid month in Eureka?
March is the most humid month in Eureka, California, with an average relative humidity of 82%.
When is Daylight Saving Time (DST) in Eureka?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Eureka, California, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.
When are the longest days in Eureka?
With an average of 15h and 6min of daylight, June has the longest days of the year in Eureka.
What is the driest month in Eureka?
The month with the least rainfall in Eureka, California, is July, when the rain falls for 2.3 days and typically collects 0.08" (2mm) of precipitation.
What are the months with the most sunshine in Eureka?
July and August, with an average of 11.6h of sunshine, are months with the most sunshine.
What is the month with the highest UV index in Eureka?
With an average maximum UV index of 5, July is the month with the highest UV index.
What is the warmest month in Eureka?
Eureka, California, records the warmest temperatures in August, averaging a high of 68.4°F (20.2°C) and a low of 52.9°F (11.6°C).
What is the least humid month in Eureka?
October is the least humid month, with an average relative humidity of 76%.
What is the wettest month in Eureka?
The month with the most rainfall in Eureka is December, when the rain falls for 10.8 days and typically aggregates up to 1.73" (44mm) of precipitation.
What is the month with the shortest days in Eureka?
December has the shortest days of the year in Eureka, with an average of 9h and 18min of daylight.
What is the month with the least sunshine in Eureka?
With an average of 5.2h of sunshine, December has the least sunshine of the year.
Average temperature
Eureka, CA
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).
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
Eureka, CA
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
30.07"Hg - Average pressure in May:
30.02"Hg - Average pressure in June:
29.99"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.11"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
Eureka, CA
- Average wind speed in January:
8mph - Average wind speed in February:
8.9mph - Average wind speed in March:
9mph - Average wind speed in April:
8.6mph - Average wind speed in May:
8.2mph - Average wind speed in June:
8.6mph
- Average wind speed in July:
7.1mph - Average wind speed in August:
6.2mph - Average wind speed in September:
6.5mph - Average wind speed in October:
7.4mph - Average wind speed in November:
7.6mph - Average wind speed in December:
8.5mph
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
Eureka, CA
The month with the highest relative humidity is March (82%).
The month with the lowest relative humidity is October (76%).
Average rainfall
Eureka, CA
- Average rainfall in January:
1.26" - Average rainfall in February:
1.1" - Average rainfall in March:
1.02" - Average rainfall in April:
0.71" - Average rainfall in May:
0.67" - Average rainfall in June:
0.16"
- Average rainfall in July:
0.08" - Average rainfall in August:
0.12" - Average rainfall in September:
0.24" - Average rainfall in October:
0.51" - Average rainfall in November:
0.98" - Average rainfall in December:
1.73"
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
Eureka, CA
- Average rainfall days in January:
9.8 days - Average rainfall days in February:
8.8 days - Average rainfall days in March:
11.2 days - Average rainfall days in April:
8.6 days - Average rainfall days in May:
5.5 days - Average rainfall days in June:
3.1 days
- Average rainfall days in July:
2.3 days - Average rainfall days in August:
1.7 days - Average rainfall days in September:
3.7 days - Average rainfall days in October:
4.9 days - Average rainfall days in November:
6.9 days - Average rainfall days in December:
10.8 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
Eureka, CA
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
Eureka, CA
- Average snowfall days in January:
0 days - Average snowfall days in February:
0.1 days - Average snowfall days in March:
0 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0.1 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 / Average sunshine
Eureka, CA
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 3min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 2min
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 January:
5h and 2min - Average sunshine in February:
5h and 4min - Average sunshine in March:
6h and 5min - Average sunshine in April:
9h and 1min - Average sunshine in May:
10h and 0min - Average sunshine in June:
10h and 5min
- Average sunshine in July:
11h and 4min - Average sunshine in August:
11h and 4min - Average sunshine in September:
10h and 2min - Average sunshine in October:
6h and 4min - Average sunshine in November:
6h and 1min - Average sunshine in December:
5h and 1min
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
Eureka, CA
- Average sunshine days in January:
20.3 days - Average sunshine days in February:
18 days - Average sunshine days in March:
17.9 days - Average sunshine days in April:
20.1 days - Average sunshine days in May:
23.3 days - Average sunshine days in June:
25.5 days
- Average sunshine days in July:
27.7 days - Average sunshine days in August:
27.4 days - Average sunshine days in September:
25.6 days - Average sunshine days in October:
24.7 days - Average sunshine days in November:
21.5 days - Average sunshine days in December:
18.9 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
Eureka, CA
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
Eureka, CA
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
Eureka, CA
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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