Climate and monthly weather forecast
Etiwanda, CA

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Weather in January

January, the same as December, is another enjoyable winter month in Etiwanda, California, with an average temperature fluctuating between 46.2°F (7.9°C) and 64°F (17.8°C). Etiwanda notes an average high-temperature of a still enjoyable 64°F (17.8°C) in January, hardly diverging from December. Weather in January »

Weather in February

The last month of the winter, February, is also an enjoyable month in Etiwanda, California, with temperature in the range of an average high of 64°F (17.8°C) and an average low of 45.3°F (7.4°C). The shift into February uncovers an average high-temperature of a still enjoyable 64°F (17.8°C), maintaining the same temperature as the previous month. Weather in February »

Weather in March

March, the first month of the spring in Etiwanda, is an agreeable month, with an average temperature varying between 68.4°F (20.2°C) and 46.9°F (8.3°C). As March takes hold, the average high-temperature is a pleasant 68.4°F (20.2°C), nearly mirroring that of the previous month. Weather in March »

Weather in April

April, the same as March, in Etiwanda, California, is another pleasant spring month, with an average temperature fluctuating between 72.9°F (22.7°C) and 50.5°F (10.3°C). Shifting into April, Etiwanda records an average high-temperature of a still pleasant 72.9°F (22.7°C), presenting minor fluctuations compared to the previous month. Weather in April »

Weather in May

May, the last month of the spring in Etiwanda, is a moderately hot month, with temperature in the range of an average low of 53.6°F (12°C) and an average high of 76.6°F (24.8°C). Etiwanda's transition from April to May introduces an average high-temperature of a warm 76.6°F (24.8°C), marking an insignificant variation from the 72.9°F (22.7°C). Weather in May »

Weather in June

The first month of the summer, June, is still a warm month in Etiwanda, California, with an average temperature ranging between min 58.6°F (14.8°C) and max 84.7°F (29.3°C). June brings a slight increase in the average high-temperature, progressing from a warm 76.6°F (24.8°C) in May to a still moderately hot 84.7°F (29.3°C). Weather in June »

Weather in July

July is a tropical summer month in Etiwanda, California, with an average temperature varying between 64.8°F (18.2°C) and 90.5°F (32.5°C). July's arrival sees a mild rise in the average high-temperature, transitioning from June's warm 84.7°F (29.3°C) to a tropical 90.5°F (32.5°C). Weather in July »

Weather in August

The last month of the summer, August, is also a hot month in Etiwanda, California, with an average temperature fluctuating between 91.8°F (33.2°C) and 66.6°F (19.2°C). With average temperatures fluctuating between a high of 91.8°F (33.2°C) and a low of 66.6°F (19.2°C), August stands out as the warmest month. During August, the heat index is calculated to be a hot 93.2°F (34°C). Weather in August »

Weather in September

September, the first month of the autumn in Etiwanda, is still a hot month, with an average temperature fluctuating between 63.7°F (17.6°C) and 88.3°F (31.3°C). In Etiwanda, September's average high-temperature stands at a still hot 88.3°F (31.3°C), closely related to the preceding month. Weather in September »

Weather in October

October, like September, in Etiwanda, California, is a moderately hot autumn month, with an average temperature ranging between min 57.6°F (14.2°C) and max 79.2°F (26.2°C). The onset of October comes with a shift in the average high-temperature, falling from a hot 88.3°F (31.3°C) in September to a moderately hot 79.2°F (26.2°C). Weather in October »

Weather in November

November, the last month of the autumn in Etiwanda, is another pleasant month, with an average temperature fluctuating between 50.9°F (10.5°C) and 70.7°F (21.5°C). The onset of November entails a subtle temperature shift, as the average high-temperature eases from a moderately hot 79.2°F (26.2°C) in October to an agreeable 70.7°F (21.5°C). Weather in November »

Weather in December

The first month of the winter, December, is also an enjoyable month in Etiwanda, California, with an average temperature varying between 45.3°F (7.4°C) and 61.7°F (16.5°C). Etiwanda witnesses the coldest weather in December, with temperatures averaging a high of 61.7°F (16.5°C) and a low of 45.3°F (7.4°C). Weather in December »
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How much does it rain?

Throughout the year, there are 42.3 rainfall days, and 4.53" (115mm) of precipitation is accumulated.

When it does not snow?

January, March through December are months without snowfall.

How many days does it snow?

In Etiwanda, during the entire year, snow falls for 0.1 days.

What is the most humid month?

The months with the highest humidity are February, March and May, with an average relative humidity of 53%.

What is the wettest month?

The month with the most rainfall is February, when the rain falls for 4.5 days and typically aggregates up to 0.98" (25mm) of precipitation.

When does it snow in Etiwanda?

The only month with snowfall is February.

What is the snowiest month in Etiwanda?

The month with the most snowfall days is February, when snow falls for 0.1 days.

What is the month with the least sunshine?

February and December, with an average of 6.9h of sunshine, are months with the least sunshine.

When is Daylight Saving Time (DST) in Etiwanda?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Etiwanda, 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.

What is the driest month?

The month with the least rainfall is June, when the rain falls for 0.9 days and typically collects 0.04" (1mm) of precipitation.

When are the longest days in Etiwanda?

With an average of 14h and 24min of daylight, June has the longest days of the year in Etiwanda.

What month has the most sunshine?

July has the most sunshine of the year, with an average of 12.1h of sunshine.

When is the highest UV index?

July and August, with an average maximum UV index of 7, are months with the highest UV index in Etiwanda.

What month is the hottest?

August is the month when Etiwanda, California, sees the average highest temperatures, with a high of 91.8°F (33.2°C) and a low of 66.6°F (19.2°C).

What is the least humid month?

The least humid month is August, with an average relative humidity of 41%.

What month is the coldest?

December is the month that records the lowest temperatures, with averages ranging from a high of 61.7°F (16.5°C) to a low of 45.3°F (7.4°C).

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 54min of daylight.

When is the lowest UV index?

December is the month with the lowest UV index, with an average maximum UV index of 3.

Average temperature
Etiwanda, CA

Average temperature - Etiwanda, CA

The warmest month (with the highest average high temperature) is August (91.8°F).
The month with the lowest average high temperature is December (61.7°F).

The month with the highest average low temperature is August (66.6°F).
The coldest months (with the lowest average low temperature) are February and December (45.3°F).

Average pressure
Etiwanda, CA

Average pressure - Etiwanda, CA

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

Average wind speed
Etiwanda, CA

Average wind speed - Etiwanda, CA

The windiest month (with the highest average wind speed) is May (5.9mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).

Average humidity
Etiwanda, CA

Average humidity - Etiwanda, CA

The months with the highest relative humidity are February, March and May (53%).
The month with the lowest relative humidity is August (41%).

Average rainfall
Etiwanda, CA

Average rainfall - Etiwanda, CA

The wettest month (with the highest rainfall) is February (0.98").
The driest month (with the least rainfall) is June (0.04").

Average rainfall days
Etiwanda, CA

Average rainfall days - Etiwanda, CA

The month with the highest number of rainy days is March (6.3 days).
The month with the least rainy days is June (0.9 days).

Average snowfall days
Etiwanda, CA

Average snowfall days - Etiwanda, CA

The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight / Average sunshine
Etiwanda, CA

Average daylight / Average sunshine - Etiwanda, CA

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 54min).

Average sunshine days
Etiwanda, CA

Average sunshine days - Etiwanda, CA

The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is February (22.8 days).

Average visibility
Etiwanda, CA

Average visibility - Etiwanda, CA

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Etiwanda, California, USA

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