Monthly weather forecast and climate
Norwalk, CA

Weather in January

January, the same as December, is another enjoyable winter month in Norwalk, California, with average temperature varying between 52°F (11.1°C) and 66.4°F (19.1°C). In Norwalk, the average high-temperature is relatively the same as in December - a still comfortable 66.4°F (19.1°C). Weather in January »

Weather in February

February, the last month of the winter, in Norwalk, is another comfortable month, with average temperature ranging between max 65.7°F (18.7°C) and min 50.5°F (10.3°C). In Norwalk, the average high-temperature in February is almost the same as in January - a still enjoyable 65.7°F (18.7°C). Weather in February »

Weather in March

March, the first month of the spring, in Norwalk, is a pleasant month, with average temperature fluctuating between 52.3°F (11.3°C) and 68°F (20°C). In Norwalk, California, the average high-temperature is essentially the same as in February - a pleasant 68°F (20°C). Weather in March »

Weather in April

April, like March, is an agreeable spring month in Norwalk, California, with average temperature ranging between min 54.1°F (12.3°C) and max 71.1°F (21.7°C). In Norwalk, the average high-temperature in April is essentially the same as in March - a still pleasant 71.1°F (21.7°C). Weather in April »

Weather in May

The last month of the spring, May, is another pleasant month in Norwalk, California, with average temperature ranging between min 57°F (13.9°C) and max 72.5°F (22.5°C). In May, the average high-temperature is practically the same as in April - a still agreeable 72.5°F (22.5°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Norwalk, California, with average temperature ranging between max 76.6°F (24.8°C) and min 59.5°F (15.3°C). In June, the average high-temperature is essentially the same as in May - a moderately hot 76.6°F (24.8°C). Weather in June »

Weather in July

July, like June, in Norwalk, California, is another warm summer month, with average temperature ranging between max 81.5°F (27.5°C) and min 64°F (17.8°C). In July, the average high-temperature is essentially the same as in June - a still moderately hot 81.5°F (27.5°C). Weather in July »

Weather in August

August, the last month of the summer, in Norwalk, is also a moderately hot month, with average temperature varying between 83.1°F (28.4°C) and 65.7°F (18.7°C). The warmest month is August, with an average high-temperature of 83.1°F (28.4°C) and an average low-temperature of 65.7°F (18.7°C). The average heat index in August is evaluated at a tropical 86.2°F (30.1°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Norwalk, California, with temperature in the range of an average low of 64.9°F (18.3°C) and an average high of 82.2°F (27.9°C). In September, the average high-temperature is relatively the same as in August - a still moderately hot 82.2°F (27.9°C). Weather in September »

Weather in October

October, like September, in Norwalk, California, is a moderately hot autumn month, with temperature in the range of an average low of 61.9°F (16.6°C) and an average high of 77.7°F (25.4°C). In Norwalk, the average high-temperature is relatively the same as in September - a still warm 77.7°F (25.4°C). Weather in October »

Weather in November

The last month of the autumn, November, is another pleasant month in Norwalk, California, with average temperature varying between 56.3°F (13.5°C) and 71.6°F (22°C). In Norwalk, the average high-temperature marginally drops, from a warm 77.7°F (25.4°C) in October, to an agreeable 71.6°F (22°C). Weather in November »

Weather in December

December, the first month of the winter, in Norwalk, is still a comfortable month, with average temperature ranging between min 51.1°F (10.6°C) and max 64.6°F (18.1°C). With an average high-temperature of 64.6°F (18.1°C) and an average low-temperature of 51.1°F (10.6°C), December is the coldest month. Weather in December »
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FAQ

How many days does it rain in Norwalk?

Throughout the year, in Norwalk, there are 49.5 rainfall days, and 7.05" (179mm) of precipitation is accumulated.

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

February, November and December, with an average maximum UV index of 4, are months with the lowest UV index.

What is the most humid month in Norwalk?

The most humid month in Norwalk, California, is June, with an average relative humidity of 66%.

What is the driest month in Norwalk?

June is the month with the least rainfall in Norwalk. Rain falls for 1.2 days and accumulates 0.04" (1mm) of precipitation.

When are the longest days in Norwalk?

The month with the longest days in Norwalk, California, is June, with an average of 14.4h of daylight.

When is the highest UV index in Norwalk?

Months with the highest UV index are June through September, with an average maximum UV index of 6.

What are the months with the most sunshine in Norwalk?

July and August, with an average of 12h of sunshine, are months with the most sunshine.

What is the warmest month in Norwalk?

August is the warmest month in Norwalk, California, with an average high-temperature of 83.1°F (28.4°C) and an average low-temperature of 65.7°F (18.7°C).

What is the least humid month in Norwalk?

November is the least humid month, with an average relative humidity of 51%.

What is the coldest month in Norwalk?

With an average high-temperature of 64.6°F (18.1°C) and an average low-temperature of 51.1°F (10.6°C), December is the coldest month in Norwalk, California.

What is the rainiest month in Norwalk?

The month with the most rainfall in Norwalk, California, is December when the rain falls for 6.1 days and typically aggregates up to 1.46" (37mm) of precipitation.

What is the month with the shortest days in Norwalk?

The month with the shortest days in Norwalk is December, with an average of 9.9h of daylight.

What is the month with the least sunshine in Norwalk?

December has the least sunshine of the year, with an average of 6.7h of sunshine.

Average temperature
Norwalk, CA

Average temperature - Norwalk, CA

The warmest month (with the highest average high temperature) is August (83.1°F).
The month with the lowest average high temperature is December (64.6°F).

The month with the highest average low temperature is August (65.7°F).
The coldest month (with the lowest average low temperature) is February (50.5°F).

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Average pressure
Norwalk, CA

Average pressure - Norwalk, CA

The month with the highest atmospheric pressure is January (30.1").
Months with the lowest atmospheric pressure are June and September (29.89").

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Average wind speed
Norwalk, CA

Average wind speed - Norwalk, CA

The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest month (with the lowest average wind speed) is October (4.7mph).

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Average rainfall
Norwalk, CA

Average rainfall - Norwalk, CA

The wettest month (with the highest rainfall) is December (1.46").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days
Norwalk, CA

Average rainfall days - Norwalk, CA

The month with the highest number of rainy days is March (7.1 days).
The month with the least rainy days is June (1.2 days).

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Average daylight / Average sunshine
Norwalk, CA

Average daylight / Average sunshine - Norwalk, CA

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

Months with the most sunshine are July and August (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 6.7h).

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Average sunshine days
Norwalk, CA

Average sunshine days - Norwalk, CA

Months with the most sunshine days are January and August (25.6 days).
The month with the least sunshine days is February (21.1 days).

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Average UV index
Norwalk, CA

Average UV index - Norwalk, CA

Months with the highest UV index are June, July, August and September (UV index 6).
Months with the lowest UV index are February, November and December (UV index 4).

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Average visibility
Norwalk, CA

Average visibility - Norwalk, 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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