Monthly weather forecast and climate
London, CA

Weather in January

January, the same as December, in London, California, is a moderate winter month, with average temperature ranging between min 42.4°F (5.8°C) and max 59.2°F (15.1°C). In January, the average high-temperature is relatively the same as in December - a still mild 59.2°F (15.1°C). Weather in January »

Weather in February

The last month of the winter, February, is an enjoyable month in London, California, with temperature in the range of an average low of 43°F (6.1°C) and an average high of 61.3°F (16.3°C). In February, the average high-temperature is relatively the same as in January - a comfortable 61.3°F (16.3°C). Weather in February »

Weather in March

March, the first month of the spring, in London, is still a comfortable month, with average temperature fluctuating between 65.8°F (18.8°C) and 45.9°F (7.7°C). In March, the average high-temperature is essentially the same as in February - a still comfortable 65.8°F (18.8°C). Weather in March »

Weather in April

April in London, California, is an agreeable spring month, with average temperature varying between 72.9°F (22.7°C) and 49.3°F (9.6°C). In London, the average high-temperature marginally rises, from a comfortable 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 warm month in London, California, with average temperature varying between 81°F (27.2°C) and 54.9°F (12.7°C). In May, the average high-temperature marginally rises, from an agreeable 72.9°F (22.7°C) in April, to a moderately hot 81°F (27.2°C). Weather in May »

Weather in June

The first month of the summer, June, is a hot month in London, California, with average temperature fluctuating between 93°F (33.9°C) and 61.2°F (16.2°C). In June, the average high-temperature increases, from a warm 81°F (27.2°C) in May, to a hot 93°F (33.9°C). Weather in June »

Weather in July

July is a torrid summer month in London, California, with temperature in the range of an average high of 100.4°F (38°C) and an average low of 64.6°F (18.1°C). With an average high-temperature of 100.4°F (38°C) and an average low-temperature of 64.6°F (18.1°C), July is the warmest month. Weather in July »

Weather in August

The last month of the summer, August, is another torrid month in London, California, with average temperature varying between 63.7°F (17.6°C) and 99.7°F (37.6°C). In August, the average high-temperature is essentially the same as in July - a still sweltering 99.7°F (37.6°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a hot month in London, California, with average temperature ranging between max 93°F (33.9°C) and min 60.8°F (16°C). In London, the average high-temperature in September marginally drops, from a sweltering 99.7°F (37.6°C) in August, to a hot 93°F (33.9°C). Weather in September »

Weather in October

October, like September, in London, California, is another warm autumn month, with average temperature varying between 79.2°F (26.2°C) and 54°F (12.2°C). In London, the average high-temperature decreases, from a tropical 93°F (33.9°C) in September, to a warm 79.2°F (26.2°C). Weather in October »

Weather in November

November, the last month of the autumn, in London, is another comfortable month, with average temperature ranging between min 47.3°F (8.5°C) and max 66.9°F (19.4°C). In London, the average high-temperature decreases, from a warm 79.2°F (26.2°C) in October, 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 also a moderate month, with average temperature ranging between max 56.3°F (13.5°C) and min 41.7°F (5.4°C). 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. Weather in December »
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FAQ

What is the most humid month in London?

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

How much does it rain in London?

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

How many days does it snow in London?

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

When it does not snow in London?

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

What are the months with the lowest UV index in London?

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

When does it snow in London?

February is the only month when snow falls in London, California.

When does it snow the most in London?

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

What is the rainiest month in London?

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

What is the driest month in London?

June and August are months with the least rain in London 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?

The month with the longest days is June, with an average of 14.6h of daylight.

What are the months with the most sunshine in London?

Months with the most sunshine in London, California, 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.

What is the warmest month in London?

The warmest month in London is July, with an average high-temperature of 100.4°F (38°C) and an average low-temperature of 64.6°F (18.1°C).

What are the least humid months in London?

Months with the lowest humidity are July and August, with an average relative humidity of 30%.

What is the coldest month 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 in London.

What is the month with the shortest days in London?

With an average of 9.7h of daylight, December has the shortest days of the year in London, California.

What is the month with the least sunshine in London?

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

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").
The month with the lowest atmospheric pressure is June (29.88").

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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%).
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).
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: 14.6h).
The month with the shortest days is December (Average daylight: 9.7h).

Months with the most sunshine are June and July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6.4h).

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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

Months with the highest UV index are June, July and August (UV index 7).
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

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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