Climate and monthly weather forecast
London, CA

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Weather in January

January, like December, is a moderate winter month in London, California, with an average temperature varying between 59.2°F (15.1°C) and 42.4°F (5.8°C). The advent of January sees the average high-temperature at a still moderate 59.2°F (15.1°C), subtly shifted from December's 56.3°F (13.5°C). Weather in January »

Weather in February

The last month of the winter, February, is an enjoyable month in London, California, with an average temperature ranging between min 43°F (6.1°C) and max 61.3°F (16.3°C). With the onset of February, the average high-temperature stands at an enjoyable 61.3°F (16.3°C), closely aligned with January's 59.2°F (15.1°C). Weather in February »

Weather in March

The first month of the spring, March, is also an enjoyable month in London, California, with an average temperature ranging between min 45.9°F (7.7°C) and max 65.8°F (18.8°C). With the start of March, London measures an average high-temperature of a still refreshing 65.8°F (18.8°C), not significantly differing from February's 61.3°F (16.3°C). Weather in March »

Weather in April

April in London, California, is an agreeable spring month, with an average temperature varying between 72.9°F (22.7°C) and 49.3°F (9.6°C). As London welcomes April, the average high-temperature displays a subtle shift, adjusting from an enjoyable 65.8°F (18.8°C) in March to an agreeable 72.9°F (22.7°C). Weather in April »

Weather in May

May, the last month of the spring in London, is a moderately hot month, with an average temperature varying between 81°F (27.2°C) and 54.9°F (12.7°C). In London, the average high-temperature in May slightly increases from a pleasant 72.9°F (22.7°C) in April to a warm 81°F (27.2°C). Weather in May »

Weather in June

June, the first month of the summer in London, is a tropical month, with an average temperature ranging between min 61.2°F (16.2°C) and max 93°F (33.9°C). June brings a rise in London's average high-temperature, moving from a warm 81°F (27.2°C) in May to a tropical 93°F (33.9°C). Weather in June »

Weather in July

July is a fiery hot summer month in London, California, with an average temperature varying between 100.4°F (38°C) and 64.6°F (18.1°C). London's temperatures peak on average in July, reaching 100.4°F (38°C) at their highest and 64.6°F (18.1°C) at their lowest. Weather in July »

Weather in August

August, the last month of the summer in London, is also a fiery hot month, with an average temperature ranging between min 63.7°F (17.6°C) and max 99.7°F (37.6°C). Welcoming August, London notes an average high-temperature of a still very hot 99.7°F (37.6°C), nearly consistent with July's 100.4°F (38°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a hot month in London, California, with an average temperature fluctuating between 60.8°F (16°C) and 93°F (33.9°C). The onset of September aligns with a soft reduction in the average high-temperature, gently falling from a torrid 99.7°F (37.6°C) in August to a hot 93°F (33.9°C). Weather in September »

Weather in October

October, the same as September, is another warm autumn month in London, California, with an average temperature varying between 79.2°F (26.2°C) and 54°F (12.2°C). The arrival of October corresponds with a temperature reduction, down from September's hot 93°F (33.9°C) to a warm 79.2°F (26.2°C). Weather in October »

Weather in November

The last month of the autumn, November, is another refreshing month in London, California, with an average temperature fluctuating between 66.9°F (19.4°C) and 47.3°F (8.5°C). The onset of November comes with a shift in the average high-temperature, falling from a moderately hot 79.2°F (26.2°C) in October to a refreshing 66.9°F (19.4°C). Weather in November »

Weather in December

The first month of the winter, December, is also a moderate month in London, California, with an average temperature ranging between max 56.3°F (13.5°C) and min 41.7°F (5.4°C). With average temperatures fluctuating between a high of 56.3°F (13.5°C) and a low of 41.7°F (5.4°C), December stands out as the coldest month. Weather in December »
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Frequently asked questions

What is the most humid month in London?

With an average relative humidity of 67%, January is the most humid month in London, California.

How many days does it rain in London?

Throughout the year, in London, California, there are 62.1 rainfall days, and 13.31" (338mm) of precipitation is accumulated.

When it does not snow in London?

January, March through December are months without snowfall.

How many days does it snow in London?

Throughout the year, in London, California, there are 0.1 snowfall days.

When is the lowest UV index in London?

January, November and December, with an average maximum UV index of 3, are months with the lowest UV index.

When does it snow in London?

The only month with snowfall is February.

When does it snow the most in London?

February has the most snowfall days of the year. Snow falls for 0.1 days.

What is the wettest month in London?

The month with the most rainfall in London, California, is March, when the rain falls for 11 days and typically aggregates up to 2.6" (66mm) of precipitation.

When is Daylight Saving Time (DST) in London?

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

June and August are months with the least rain when the rain falls for 1.8 days and typically aggregates up to 0.08" (2mm) of rain.

When are the longest days in London?

June has the longest days of the year in London, California, with an average of 14h and 36min of daylight.

What are the months with the most sunshine in London?

The months with the most sunshine are June and July, with an average of 12.1h of sunshine.

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

June through August, with an average maximum UV index of 7, are months with the highest UV index in London, California.

What month is the hottest in London?

In London, the average highest temperatures are observed in July, with a high of 100.4°F (38°C) and a low of 64.6°F (18.1°C).

What are the least humid months in London?

The months with the lowest humidity in London, California, are July and August, with an average relative humidity of 30%.

What month is the coldest in London?

With an average high-temperature of 56.3°F (13.5°C) and an average low-temperature of 41.7°F (5.4°C), December is the coldest month.

What is the month with the shortest days in London?

With an average of 9h and 42min of daylight, December has the shortest days of the year in London, California.

What is the month with the least sunshine in London?

The month with the least sunshine is December, with an average of 6.4h of sunshine.

Average temperature
London, CA

Average temperature - London, CA

The warmest month (with the highest average high temperature) is July (100.4°F).
The month with the lowest average high temperature is December (56.3°F).

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is December (41.7°F).

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Average pressure
London, CA

Average pressure - London, CA

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed
London, CA

Average wind speed - London, CA

The windiest month (with the highest average wind speed) is June (5.8mph).
The calmest months (with the lowest average wind speed) are January and December (4.1mph).

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Average humidity
London, CA

Average humidity - London, CA

The month with the highest relative humidity is January (67%).
The months with the lowest relative humidity are July and August (30%).

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Average rainfall
London, CA

Average rainfall - London, CA

The wettest month (with the highest rainfall) is March (2.6").
The driest months (with the least rainfall) are June and August (0.08").

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Average rainfall days
London, CA

Average rainfall days - London, CA

The month with the highest number of rainy days is March (11 days).
The month with the least rainy days is August (0.9 days).

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Average snowfall days
London, CA

Average snowfall days - London, 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).

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Average daylight / Average sunshine
London, CA

Average daylight / Average sunshine - London, CA

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).

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Average sunshine days
London, CA

Average sunshine days - London, CA

The month with the most sunshine days is August (28.8 days).
The month with the least sunshine days is March (19.5 days).

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Average UV index
London, CA

Average UV index - London, CA

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).

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Average visibility
London, CA

Average visibility - London, 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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London, California, USA

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