Monthly weather forecast and climate
Holtville, CA

Weather in January

January in Holtville, California, is a pleasant winter month, with average temperature varying between 69.1°F (20.6°C) and 50°F (10°C). In January, the average high-temperature is relatively the same as in December - a pleasant 69.1°F (20.6°C). Weather in January »

Weather in February

February, the last month of the winter, in Holtville, is another pleasant month, with temperature in the range of an average low of 52.5°F (11.4°C) and an average high of 72.3°F (22.4°C). In Holtville, the average high-temperature is practically the same as in January - a still agreeable 72.3°F (22.4°C). Weather in February »

Weather in March

March, the first month of the spring, in Holtville, is a warm month, with average temperature varying between 79.7°F (26.5°C) and 56.8°F (13.8°C). In Holtville, the average high-temperature marginally rises, from a pleasant 72.3°F (22.4°C) in February, to a warm 79.7°F (26.5°C). Weather in March »

Weather in April

April is a hot spring month in Holtville, California, with average temperature ranging between min 61.2°F (16.2°C) and max 86.7°F (30.4°C). In Holtville, California, the average high-temperature marginally rises, from a warm 79.7°F (26.5°C) in March, to a hot 86.7°F (30.4°C). Weather in April »

Weather in May

May, the last month of the spring, in Holtville, is another tropical month, with average temperature varying between 67.3°F (19.6°C) and 93.2°F (34°C). In Holtville, the average high-temperature in May marginally rises, from a hot 86.7°F (30.4°C) in April, to a still tropical 93.2°F (34°C). Weather in May »

Weather in June

The first month of the summer, June, is a blistering month in Holtville, California, with temperature in the range of an average low of 75.6°F (24.2°C) and an average high of 104.4°F (40.2°C). In June, the average high-temperature rises, from a hot 93.2°F (34°C) in May, to a scorching 104.4°F (40.2°C). Weather in June »

Weather in July

July, like June, is another blistering summer month in Holtville, California, with temperature in the range of an average high of 107.2°F (41.8°C) and an average low of 84.4°F (29.1°C). With an average high-temperature of 107.2°F (41.8°C) and an average low-temperature of 84.4°F (29.1°C), July is the warmest month. In Holtville, California, the average relative humidity is 25%. Weather in July »

Weather in August

August, the last month of the summer, in Holtville, is another extremely hot month, with average temperature ranging between max 106.5°F (41.4°C) and min 85.6°F (29.8°C). In August, the average high-temperature is almost the same as in July - a still blistering 106.5°F (41.4°C). Weather in August »

Weather in September

September, the first month of the autumn, in Holtville, is still a torrid month, with temperature in the range of an average low of 80.1°F (26.7°C) and an average high of 99.9°F (37.7°C). In Holtville, the average high-temperature in September marginally drops, from a scorching 106.5°F (41.4°C) in August, to a torrid 99.9°F (37.7°C). Weather in September »

Weather in October

October, like September, is a hot autumn month in Holtville, California, with temperature in the range of an average low of 69.1°F (20.6°C) and an average high of 88.3°F (31.3°C). In October, the average high-temperature drops, from a very hot 99.9°F (37.7°C) in September, to a tropical 88.3°F (31.3°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a moderately hot month in Holtville, California, with temperature in the range of an average high of 77.2°F (25.1°C) and an average low of 58.3°F (14.6°C). In November, the average high-temperature decreases, from a hot 88.3°F (31.3°C) in October, to a moderately hot 77.2°F (25.1°C). Weather in November »

Weather in December

The first month of the winter, December, is still a comfortable month in Holtville, California, with average temperature fluctuating between 67.3°F (19.6°C) and 50.4°F (10.2°C). With an average high-temperature of 67.3°F (19.6°C) and an average low-temperature of 50.4°F (10.2°C), December is the coldest month. Weather in December »
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FAQ

How much does it rain in Holtville?

Throughout the year, in Holtville, there are 29.5 rainfall days, and 2.99" (76mm) of precipitation is accumulated.

What is the driest month in Holtville?

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

What is the least humid month in Holtville?

With an average relative humidity of 21%, June is the least humid month.

When are the longest days in Holtville?

With an average of 14.3h of daylight, June has the longest days of the year.

What month has the most sunshine in Holtville?

The month with the most sunshine in Holtville, California, is June, with an average of 12.2h of sunshine.

What is the warmest month in Holtville?

With an average high-temperature of 107.2°F (41.8°C) and an average low-temperature of 84.4°F (29.1°C), July is the warmest month in Holtville.

What is the rainiest month in Holtville?

The month with the most rainfall is July when the rain falls for 6.3 days and typically aggregates up to 0.55" (14mm) of precipitation.

What is the month with the highest UV index in Holtville?

July and August, with an average maximum UV index of 9, are months with the highest UV index.

What is the coldest month in Holtville?

December is the coldest month in Holtville, with an average high-temperature of 67.3°F (19.6°C) and an average low-temperature of 50.4°F (10.2°C).

What is the most humid month in Holtville?

With an average relative humidity of 39%, December is the most humid month.

What is the month with the shortest days in Holtville?

With an average of 10h of daylight, December has the shortest days of the year in Holtville, California.

What is the month with the least sunshine in Holtville?

December has the least sunshine of the year in Holtville, California, with an average of 7.1h of sunshine.

What is the month with the lowest UV index in Holtville?

With an average maximum UV index of 4, December is the month with the lowest UV index in Holtville, California.

Average temperature
Holtville, CA

Average temperature - Holtville, CA

The warmest month (with the highest average high temperature) is July (107.2°F).
The month with the lowest average high temperature is December (67.3°F).

The month with the highest average low temperature is August (85.6°F).
The coldest month (with the lowest average low temperature) is January (50°F).

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Average pressure
Holtville, CA

Average pressure - Holtville, CA

The month with the highest atmospheric pressure is January (30.08").
The month with the lowest atmospheric pressure is June (29.77").

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Average wind speed
Holtville, CA

Average wind speed - Holtville, CA

The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest months (with the lowest average wind speed) are January and August (5.5mph).

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Average rainfall
Holtville, CA

Average rainfall - Holtville, CA

The wettest month (with the highest rainfall) is July (0.55").
The driest month (with the least rainfall) is May (0.04").

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Average rainfall days
Holtville, CA

Average rainfall days - Holtville, CA

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

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Average daylight / Average sunshine
Holtville, CA

Average daylight / Average sunshine - Holtville, CA

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

The month with the most sunshine is June (Average sunshine: 12.2h).
The month with the least sunshine is December (Average sunshine: 7.1h).

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Average sunshine days
Holtville, CA

Average sunshine days - Holtville, CA

The month with the most sunshine days is May (29.9 days).
The month with the least sunshine days is July (21.8 days).

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Average visibility
Holtville, CA

Average visibility - Holtville, CA

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

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