Climate and monthly weather forecast
Mountain Pass, CA

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Weather in January

January, the same as December, is another fresh winter month in Mountain Pass, California, with an average temperature varying between 53.1°F (11.7°C) and 39.4°F (4.1°C). At the onset of January, Mountain Pass records an average high-temperature of a still cool 53.1°F (11.7°C), showing little deviation from the preceding month. Weather in January »

Weather in February

The last month of the winter, February, is a mild month in Mountain Pass, California, with an average temperature varying between 57.4°F (14.1°C) and 42.1°F (5.6°C). Entering February, the average high-temperature is recorded at a mild 57.4°F (14.1°C), exhibiting a minimal shift from January's 53.1°F (11.7°C). Weather in February »

Weather in March

March, the first month of the spring in Mountain Pass, is a comfortable month, with an average temperature ranging between max 66°F (18.9°C) and min 48.9°F (9.4°C). As Mountain Pass welcomes March, the average high-temperature displays a subtle shift, adjusting from a mild 57.4°F (14.1°C) in February to a still refreshing 66°F (18.9°C). Weather in March »

Weather in April

April in Mountain Pass, California, is a pleasant spring month, with an average temperature ranging between max 73°F (22.8°C) and min 54.5°F (12.5°C). April's arrival coincides with a marginal rise in the average high-temperature, moving from March's enjoyable 66°F (18.9°C) to a pleasant 73°F (22.8°C). Weather in April »

Weather in May

The last month of the spring, May, is a warm month in Mountain Pass, California, with an average temperature fluctuating between 81.7°F (27.6°C) and 62.2°F (16.8°C). May sees a marginal temperature increase, moving from a pleasant 73°F (22.8°C) in April to a warm 81.7°F (27.6°C). Weather in May »

Weather in June

June, the first month of the summer in Mountain Pass, is a hot month, with temperature in the range of an average low of 72.5°F (22.5°C) and an average high of 94.6°F (34.8°C). The onset of June brings a temperature shift, with the average high-temperature moving from a moderately hot 81.7°F (27.6°C) in May to a tropical 94.6°F (34.8°C). Weather in June »

Weather in July

July is a very hot summer month in Mountain Pass, California, with temperature in the range of an average low of 78.4°F (25.8°C) and an average high of 98.4°F (36.9°C). With average high temperatures of 98.4°F (36.9°C) and lows of 78.4°F (25.8°C), July is the warmest month. Weather in July »

Weather in August

August, the last month of the summer in Mountain Pass, is another very hot month, with an average temperature fluctuating between 78.4°F (25.8°C) and 97.3°F (36.3°C). The start of August sees the average high-temperature at a still sweltering 97.3°F (36.3°C), showing little difference from July's 98.4°F (36.9°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a tropical month in Mountain Pass, California, with an average temperature ranging between max 88.9°F (31.6°C) and min 71.2°F (21.8°C). The commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from a sweltering 97.3°F (36.3°C) in August to a tropical 88.9°F (31.6°C). Weather in September »

Weather in October

October, like September, in Mountain Pass, California, is a moderately hot autumn month, with temperature in the range of an average high of 75.2°F (24°C) and an average low of 59.4°F (15.2°C). The beginning of October involves a decrease in the average high-temperature, transitioning from a tropical 88.9°F (31.6°C) in September to a warm 75.2°F (24°C). Weather in October »

Weather in November

November, the last month of the autumn in Mountain Pass, is another refreshing month, with an average temperature varying between 47.3°F (8.5°C) and 62.4°F (16.9°C). Mountain Pass's weather in November involves a decrease in the average high-temperature, moving down from October's warm 75.2°F (24°C) to a comfortable 62.4°F (16.9°C). Weather in November »

Weather in December

The first month of the winter, December, is also a fresh month in Mountain Pass, California, with an average temperature ranging between min 38.8°F (3.8°C) and max 50.9°F (10.5°C). In Mountain Pass, December is the month with the lowest recorded average temperatures, measuring a high of 50.9°F (10.5°C) and a low of 38.8°F (3.8°C). Weather in December »
Updated: Feb 9, 2024 | Published by: Weather U.S. | Resources

Frequently asked questions

What is the most humid month in Mountain Pass?

The most humid month is January, with an average relative humidity of 47%.

How much does it rain in Mountain Pass?

In Mountain Pass, during the entire year, the rain falls for 42.9 days and collects up to 3.23" (82mm) of precipitation.

When it does not snow in Mountain Pass?

January, March through December are months without snowfall in Mountain Pass.

How much does it snow in Mountain Pass?

In Mountain Pass, California, during the entire year, snow aggregates up to 0.24" (6mm).

When does it snow in Mountain Pass?

The only month with snowfall in Mountain Pass is February.

What is the snowiest month in Mountain Pass?

February is the month with the most snowfall. Snow falls for 0.3 days and accumulates 0.24" (6mm) of snow.

When is Daylight Saving Time (DST) in Mountain Pass?

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.

What is the least humid month in Mountain Pass?

The least humid month in Mountain Pass, California, is June, with an average relative humidity of 15%.

What is the driest month in Mountain Pass?

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 Mountain Pass?

The month with the longest days in Mountain Pass, California, is June, with an average of 14h and 30min of daylight.

What are the months with the highest UV index in Mountain Pass?

June through August, with an average maximum UV index of 8, are months with the highest UV index in Mountain Pass.

What is the warmest month in Mountain Pass?

Mountain Pass's July weather, marked by an average high temperature of 98.4°F (36.9°C) and an average low temperature of 78.4°F (25.8°C), is the warmest in the year.

What is the rainiest month in Mountain Pass?

The months with the most rainfall in Mountain Pass are July and August, with an average 0.55" (14mm) of precipitation.

What month has the most sunshine in Mountain Pass?

August has the most sunshine of the year, with an average of 12.2h of sunshine.

What part of the year is the coldest in Mountain Pass?

With average temperatures fluctuating between a high of 50.9°F (10.5°C) and a low of 38.8°F (3.8°C), December stands out as the coldest month.

What is the month with the shortest days in Mountain Pass?

The month with the shortest days in Mountain Pass, California, is December, with an average of 9h and 48min of daylight.

What is the month with the least sunshine in Mountain Pass?

With an average of 7h of sunshine, December has the least sunshine of the year in Mountain Pass, California.

When is the lowest UV index in Mountain Pass?

The month with the lowest UV index is December, with an average maximum UV index of 2.

Average temperature
Mountain Pass, CA

Average temperature - Mountain Pass, CA

The warmest month (with the highest average high temperature) is July (98.4°F).
The month with the lowest average high temperature is December (50.9°F).

The months with the highest average low temperature are July and August (78.4°F).
The coldest month (with the lowest average low temperature) is December (38.8°F).

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Average pressure
Mountain Pass, CA

Average pressure - Mountain Pass, CA

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.76"Hg).

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Average wind speed
Mountain Pass, CA

Average wind speed - Mountain Pass, CA

The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest month (with the lowest average wind speed) is January (5.4mph).

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Average rainfall
Mountain Pass, CA

Average rainfall - Mountain Pass, CA

The wettest months (with the highest rainfall) are July and August (0.55").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days
Mountain Pass, CA

Average rainfall days - Mountain Pass, CA

The month with the highest number of rainy days is July (6.1 days).
The month with the least rainy days is June (0.9 days).

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Average snowfall
Mountain Pass, CA

Average snowfall - Mountain Pass, CA

The month with the highest snowfall is February (0.24").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days
Mountain Pass, CA

Average snowfall days - Mountain Pass, CA

The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight / Average sunshine
Mountain Pass, CA

Average daylight / Average sunshine - Mountain Pass, CA

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

The month with the most sunshine is August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).

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Average sunshine days
Mountain Pass, CA

Average sunshine days - Mountain Pass, CA

The month with the most sunshine days is June (27.6 days).
The month with the least sunshine days is July (18.7 days).

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Average visibility
Mountain Pass, CA

Average visibility - Mountain Pass, 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).

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Mountain Pass, California, USA

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