Climate and monthly weather forecast
London, CA

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Weather in January

January, like December, is another refreshing winter month in London, California, with temperature in the range of an average low of 42.4°F (5.8°C) and an average high of 59.2°F (15.1°C). London observes a minor difference in average high-temperatures between December's 56.3°F (13.5°C) and January's 59.2°F (15.1°C). Weather in January »

Weather in February

February, the last month of the winter in London, is a refreshing month, with an average temperature varying between 61.3°F (16.3°C) and 43°F (6.1°C). As London welcomes February, the average high-temperature is noted at a still refreshing 61.3°F (16.3°C), closely aligning with the preceding month. Weather in February »

Weather in March

March, the first month of the spring in London, is also an enjoyable month, with temperature in the range of an average high of 65.8°F (18.8°C) and an average low of 45.9°F (7.7°C). The arrival of March sees an average high-temperature of a still refreshing 65.8°F (18.8°C), hardly diverging from February's 61.3°F (16.3°C). Weather in March »

Weather in April

April in London, California, is a pleasant spring month, with an average temperature ranging between min 49.3°F (9.6°C) and max 72.9°F (22.7°C). The arrival of April introduces a minor uplift in high-temperatures, adjusting from a refreshing 65.8°F (18.8°C) in March to an agreeable 72.9°F (22.7°C). Weather in April »

Weather in May

The last month of the spring, May, is a moderately hot month in London, California, with temperature in the range of an average low of 54.9°F (12.7°C) and an average high of 81°F (27.2°C). May's onset brings a minor rise in the average high-temperature, moving 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 hot month, with temperature in the range of an average low of 61.2°F (16.2°C) and an average high of 93°F (33.9°C). With the onset of June, London's average high-temperature experiences a rise, moving from May's warm 81°F (27.2°C) to a hot 93°F (33.9°C). Weather in June »

Weather in July

July in London, California, is a sweltering summer month, with temperature in the range of an average low of 64.6°F (18.1°C) and an average high of 100.4°F (38°C). In London, July is the month with the highest recorded average temperatures, measuring a high of 100.4°F (38°C) and a low of 64.6°F (18.1°C). Weather in July »

Weather in August

The last month of the summer, August, is also a sweltering month in London, California, with an average temperature varying between 63.7°F (17.6°C) and 99.7°F (37.6°C). London's weather in August displays an average high-temperature of a still sweltering 99.7°F (37.6°C), showing minor disparity from 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 temperature in the range of an average low of 60.8°F (16°C) and an average high of 93°F (33.9°C). September implies a soft temperature shift, with average high-temperatures reducing from August's fiery hot 99.7°F (37.6°C) to a tropical 93°F (33.9°C). Weather in September »

Weather in October

October, like September, in London, California, is a moderately hot autumn month, with an average temperature fluctuating between 54°F (12.2°C) and 79.2°F (26.2°C). October brings a drop in London's average high-temperature, falling from a tropical 93°F (33.9°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 London, is another refreshing month, with an average temperature varying between 66.9°F (19.4°C) and 47.3°F (8.5°C). With November's onset, the average high-temperature recedes from October's warm 79.2°F (26.2°C) to an enjoyable 66.9°F (19.4°C). Weather in November »

Weather in December

December, the first month of the winter in London, is still a refreshing month, with temperature in the range of an average low of 41.7°F (5.4°C) and an average high of 56.3°F (13.5°C). December, noted for its average high-temperature of 56.3°F (13.5°C) and an average low-temperature of 41.7°F (5.4°C), is considered the coldest month. Weather in December »
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the most humid month?

The most humid month is January, with an average relative humidity of 67%.

How much does it rain?

In London, California, during the entire year, the rain falls for 62.1 days and collects up to 13.31" (338mm) of precipitation.

When it does not snow?

In London, snow does not fall in January, March through December.

How many days does it snow?

Throughout the year, there are 0.1 snowfall days.

What are the months with the lowest UV index?

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?

February is the only month when snow falls.

What is the snowiest month?

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

What is the rainiest month?

March is the month with the most rainfall. Rain falls for 11 days and accumulates 2.6" (66mm) of precipitation.

When is Daylight Saving Time (DST)?

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 driest month?

The months with the least rainfall in London are June and August Rain falls for 1.8 days and accumulates 0.08" (2mm) of rain.

When are the longest days?

With an average of 14h and 36min of daylight, June has the longest days of the year.

What are the months with the most sunshine?

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

When is the highest UV index?

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

What is the hottest time of year?

July, recording an average high temperature of 100.4°F (38°C) and a low temperature of 64.6°F (18.1°C), is London's warmest month.

What are the least humid months?

July and August, with an average relative humidity of 30%, are the least humid months.

What are the coldest months in London?

In London, December registers the lowest temperatures, averaging 56.3°F (13.5°C) at the peak and 41.7°F (5.4°C) at the lowest.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 42min of daylight.

What is the month with the least sunshine?

With an average of 6.4h of sunshine, December has the least sunshine of the year.

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).

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).

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).

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%).

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").

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).

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).

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).

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).

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).

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).

London, California, USA

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