Climate and monthly weather forecastEtna, CA
Climate and monthly weather forecast
Weather in January
January is a frosty winter month in Etna, California, with an average temperature varying between 28.2°F (-2.1°C) and 43.3°F (6.3°C). Etna's shift into January is marked by a subtle change to a chilly 43.3°F (6.3°C) from December's 41.5°F (5.3°C) in temperature. Weather in January »Weather in February
The last month of the winter, February, is also a frosty month in Etna, California, with an average temperature varying between 44.6°F (7°C) and 28.8°F (-1.8°C). The advent of February denotes an average high-temperature of a still frosty 44.6°F (7°C), subtly different from January's 43.3°F (6.3°C). Weather in February »Weather in March
The first month of the spring, March, is also a frosty month in Etna, California, with temperature in the range of an average high of 47.8°F (8.8°C) and an average low of 30.9°F (-0.6°C). Shifting into March, Etna records an average high-temperature of a still chilly 47.8°F (8.8°C), presenting minor fluctuations compared to the previous month. Weather in March »Weather in April
April is a cool spring month in Etna, California, with an average temperature ranging between max 55°F (12.8°C) and min 33.6°F (0.9°C). Etna's April weather indicates a minor increase in high-temperatures, edging from March's chilly 47.8°F (8.8°C) to a cool 55°F (12.8°C). Weather in April »Weather in May
The last month of the spring, May, is a refreshing month in Etna, California, with an average temperature varying between 63.9°F (17.7°C) and 38.7°F (3.7°C). As Etna welcomes May, the average high-temperature sees a modest rise, transitioning from a fresh 55°F (12.8°C) in April to an enjoyable 63.9°F (17.7°C). Weather in May »Weather in June
The first month of the summer, June, is an agreeable month in Etna, California, with an average temperature fluctuating between 43.9°F (6.6°C) and 72.9°F (22.7°C). June brings a rise in the average high-temperature, transitioning from May's comfortable 63.9°F (17.7°C) to a pleasant 72.9°F (22.7°C). Weather in June »Weather in July
July is a warm summer month in Etna, California, with an average temperature fluctuating between 84.2°F (29°C) and 49.8°F (9.9°C). In Etna, the months of July and August register the highest average temperatures, peaking at 84.2°F (29°C). July's mean heat index is estimated at a hot 86°F (30°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Etna, California, with an average temperature ranging between min 50.2°F (10.1°C) and max 84.2°F (29°C). The height of temperatures is seen during July and August, averaging a high-temperature of 84.2°F (29°C). In August, the heat index is estimated at a hot 86°F (30°C). Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Etna, California, with an average temperature ranging between max 75.9°F (24.4°C) and min 44.8°F (7.1°C). September signifies a minor drop in average high-temperature, transitioning from 84.2°F (29°C) in August to a still warm 75.9°F (24.4°C). Weather in September »Weather in October
October, the same as September, is another refreshing autumn month in Etna, California, with an average temperature ranging between min 38.1°F (3.4°C) and max 62.6°F (17°C). With October's arrival, Etna, California, sees a decrease in average high-temperatures, moving from a moderately hot 75.9°F (24.4°C) in September to an enjoyable 62.6°F (17°C). Weather in October »Weather in November
The last month of the autumn, November, is another cool month in Etna, California, with an average temperature ranging between min 31.3°F (-0.4°C) and max 50°F (10°C). The shift from October to November involves a decrease in the average high-temperature, from a comfortable 62.6°F (17°C) to a cool 50°F (10°C). Weather in November »Weather in December
The first month of the winter, December, is also a wintry month in Etna, California, with an average temperature ranging between min 26.6°F (-3°C) and max 41.5°F (5.3°C). In Etna, California, the month of December registers the lowest temperatures, averaging 41.5°F (5.3°C) at the peak and 26.6°F (-3°C) at the lowest. Weather in December »Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
With an average relative humidity of 82%, January is the most humid month.
In Etna, California, during the entire year, the rain falls for 116 days and collects up to 17.8" (452mm) of precipitation.
Months with snowfall are January through April, October through December.
In Etna, California, during the entire year, snow falls for 30.9 days and aggregates up to 20.47" (520mm) of snow.
January and December, with an average of 5.7h of sunshine, are months with the least sunshine.
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
February is the month with the most snowfall. Snow falls for 7.4 days and accumulates 5.39" (137mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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.
In Etna, snow does not fall in May through September.
The month with the longest days is June, with an average of 15h and 6min of daylight.
Etna experiences peak temperatures, averaging a high-temperature of 84.2°F (29°C) during July and August.
July is the month with the least rainfall. Rain falls for 3.2 days and accumulates 0.16" (4mm) of precipitation.
July has the most sunshine of the year, with an average of 12.1h of sunshine.
July is the month with the highest UV index, with an average maximum UV index of 6.
With an average relative humidity of 52%, August is the least humid month.
In Etna, the average lowest temperatures are observed in December, with a high of 41.5°F (5.3°C) and a low of 26.6°F (-3°C).
The month with the most rainfall is December, when the rain falls for 12.8 days and typically aggregates up to 2.99" (76mm) of precipitation.
With an average of 9h and 12min of daylight, December has the shortest days of the year.
Average temperature
Etna, CA
The warmest months (with the highest average high temperature) are July and August (84.2°F).
The month with the lowest average high temperature is December (41.5°F).
The month with the highest average low temperature is August (50.2°F).
The coldest month (with the lowest average low temperature) is December (26.6°F).
Average pressure
Etna, CA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
30.05"Hg - Average pressure in May:
29.99"Hg - Average pressure in June:
29.97"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed
Etna, CA
- Average wind speed in January:
4.9mph - Average wind speed in February:
5mph - Average wind speed in March:
5.4mph - Average wind speed in April:
5.2mph - Average wind speed in May:
4.5mph - Average wind speed in June:
4.4mph
- Average wind speed in July:
3.7mph - Average wind speed in August:
3.6mph - Average wind speed in September:
4mph - Average wind speed in October:
4.3mph - Average wind speed in November:
4.8mph - Average wind speed in December:
4.8mph
The windiest month (with the highest average wind speed) is March (5.4mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity
Etna, CA
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (52%).
Average rainfall
Etna, CA
- Average rainfall in January:
2.8" - Average rainfall in February:
2.24" - Average rainfall in March:
2.68" - Average rainfall in April:
1.42" - Average rainfall in May:
1.61" - Average rainfall in June:
0.63"
- Average rainfall in July:
0.16" - Average rainfall in August:
0.28" - Average rainfall in September:
0.43" - Average rainfall in October:
1.14" - Average rainfall in November:
1.42" - Average rainfall in December:
2.99"
The wettest month (with the highest rainfall) is December (2.99").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days
Etna, CA
- Average rainfall days in January:
12.6 days - Average rainfall days in February:
10.8 days - Average rainfall days in March:
16.7 days - Average rainfall days in April:
14.4 days - Average rainfall days in May:
12.6 days - Average rainfall days in June:
6.7 days
- Average rainfall days in July:
3.2 days - Average rainfall days in August:
3.6 days - Average rainfall days in September:
4.1 days - Average rainfall days in October:
8 days - Average rainfall days in November:
10.5 days - Average rainfall days in December:
12.8 days
The month with the highest number of rainy days is March (16.7 days).
The month with the least rainy days is July (3.2 days).
Average snowfall
Etna, CA
The month with the highest snowfall is February (5.39").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Etna, CA
- Average snowfall days in January:
5.4 days - Average snowfall days in February:
7.4 days - Average snowfall days in March:
6.8 days - Average snowfall days in April:
2.4 days - Average snowfall days in May:
0.2 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:
0.2 days - Average snowfall days in November:
2.4 days - Average snowfall days in December:
6.1 days
The month with the highest number of snowfall days is February (7.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Etna, CA
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 12min
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 12min).
- Average sunshine in January:
5h and 42min - Average sunshine in February:
6h and 12min - Average sunshine in March:
7h and 54min - Average sunshine in April:
10h and 6min - Average sunshine in May:
10h and 54min - Average sunshine in June:
11h and 36min
- Average sunshine in July:
12h and 6min - Average sunshine in August:
12h and 0min - Average sunshine in September:
11h and 0min - Average sunshine in October:
7h and 12min - Average sunshine in November:
6h and 30min - Average sunshine in December:
5h and 42min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January and December (Average sunshine: 5h and 42min).
Average sunshine days
Etna, CA
- Average sunshine days in January:
15.8 days - Average sunshine days in February:
12.4 days - Average sunshine days in March:
11 days - Average sunshine days in April:
13.1 days - Average sunshine days in May:
16.2 days - Average sunshine days in June:
21.8 days
- Average sunshine days in July:
25.4 days - Average sunshine days in August:
25.7 days - Average sunshine days in September:
25.1 days - Average sunshine days in October:
21.3 days - Average sunshine days in November:
17.1 days - Average sunshine days in December:
14.4 days
The month with the most sunshine days is August (25.7 days).
The month with the least sunshine days is March (11 days).
Average UV index
Etna, CA
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Etna, CA
The months with the most cloud cover are March and December (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility
Etna, CA
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, November and December (5mi).
