Climate and monthly weather forecast
Folsom, CA

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Weather in January

January in Folsom, California, is a moderate winter month, with an average temperature fluctuating between 40.6°F (4.8°C) and 55.9°F (13.3°C). The introduction of January notes a subtle temperature variation to a moderate 55.9°F (13.3°C) from December's 54°F (12.2°C). Weather in January »

Weather in February

February, the last month of the winter in Folsom, is another refreshing month, with an average temperature fluctuating between 58.3°F (14.6°C) and 40.8°F (4.9°C). February's onset records a minor alteration in the average high-temperature to a still mild 58.3°F (14.6°C) from January's 55.9°F (13.3°C). Weather in February »

Weather in March

The first month of the spring, March, is a comfortable month in Folsom, California, with an average temperature varying between 43°F (6.1°C) and 61.3°F (16.3°C). Stepping into March, Folsom records an average high-temperature of a still refreshing 61.3°F (16.3°C), almost consistent with February. Weather in March »

Weather in April

April in Folsom, California, is an agreeable spring month, with temperature in the range of an average low of 46°F (7.8°C) and an average high of 68.5°F (20.3°C). Folsom's weather in April presents a minor rise in the average high-temperature, moving from an enjoyable 61.3°F (16.3°C) in March to a pleasant 68.5°F (20.3°C). Weather in April »

Weather in May

The last month of the spring, May, is a moderately hot month in Folsom, California, with temperature in the range of an average high of 76.3°F (24.6°C) and an average low of 50.5°F (10.3°C). Folsom perceives a slight temperature ascent during May, with average high-temperatures adjusting from an agreeable 68.5°F (20.3°C) in April to a warm 76.3°F (24.6°C). Weather in May »

Weather in June

June, the first month of the summer in Folsom, is a hot month, with an average temperature fluctuating between 56.8°F (13.8°C) and 87.3°F (30.7°C). In Folsom, stepping into June brings a temperature increase, moving up from May's warm 76.3°F (24.6°C) to a tropical 87.3°F (30.7°C). Weather in June »

Weather in July

July, the same as June, in Folsom, California, is another hot summer month, with an average temperature ranging between min 59.7°F (15.4°C) and max 93.7°F (34.3°C). In Folsom, July is the warmest month, with temperatures averaging a high of 93.7°F (34.3°C) and a low of 59.7°F (15.4°C). July's mean heat index is estimated at a fiery hot 96.8°F (36°C). Weather in July »

Weather in August

August, the last month of the summer in Folsom, is another hot month, with temperature in the range of an average high of 92.8°F (33.8°C) and an average low of 59.9°F (15.5°C). With August's advent, Folsom sees an average high-temperature of a still tropical 92.8°F (33.8°C), subtly shifted from July's 93.7°F (34.3°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a hot month in Folsom, California, with temperature in the range of an average low of 58.5°F (14.7°C) and an average high of 87.4°F (30.8°C). September brings an average high-temperature of a still hot 87.4°F (30.8°C), showing a slight difference from August's 92.8°F (33.8°C). Weather in September »

Weather in October

October, like September, in Folsom, California, is another warm autumn month, with an average temperature fluctuating between 52.7°F (11.5°C) and 75.4°F (24.1°C). Stepping into October, Folsom observes a temperature decline, with the average high falling from September's hot 87.4°F (30.8°C) to a moderately hot 75.4°F (24.1°C). Weather in October »

Weather in November

November, the last month of the autumn in Folsom, is another comfortable month, with an average temperature varying between 62.6°F (17°C) and 45.5°F (7.5°C). Start of November brings a shift in the average high-temperature, falling from October's moderately hot 75.4°F (24.1°C) to an enjoyable 62.6°F (17°C). Weather in November »

Weather in December

December, the first month of the winter in Folsom, is also a fresh month, with an average temperature fluctuating between 54°F (12.2°C) and 40.1°F (4.5°C). Folsom notes the coldest temperatures in December, with a high average of 54°F (12.2°C) and a low of 40.1°F (4.5°C). Weather in December »
Updated: Jun 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How much does it rain?

In Folsom, during the entire year, the rain falls for 70.2 days and collects up to 13.43" (341mm) of precipitation.

When it does not snow?

In Folsom, snow does not fall in January through November.

How much does it snow?

In Folsom, during the entire year, snow aggregates up to 0.04" (1mm).

What are the months with the lowest UV index?

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

What is the most humid month?

With an average relative humidity of 74%, March is the most humid month.

What is the rainiest month?

March is the month with the most rainfall in Folsom. Rain falls for 12.9 days and accumulates 2.48" (63mm) 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.

When are the longest days?

The month with the longest days is June, with an average of 14h and 48min of daylight.

What are the months with the highest UV index in Folsom?

June and July, with an average maximum UV index of 7, are months with the highest UV index.

What month is the hottest?

In Folsom, California, the average highest temperatures are observed in July, with a high of 93.7°F (34.3°C) and a low of 59.7°F (15.4°C).

What is the least humid month?

July is the least humid month, with an average relative humidity of 41%.

What is the driest month in Folsom?

The months with the least rainfall are July and August Rain falls for 1.2 days and accumulates 0.04" (1mm) of rain.

What month has the most sunshine?

The month with the most sunshine is July, with an average of 12.1h of sunshine.

What are the coldest months?

December is the coldest month, with the temperature often reaching an average high of 54°F (12.2°C) and an average low of 40.1°F (4.5°C).

When does it snow?

December is the only month when snow falls.

When does it snow the most in Folsom?

December is the month with the most snowfall. Snow falls for 0.2 days and accumulates 0.04" (1mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 30min of daylight.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 5.8h of sunshine.

Average temperature
Folsom, CA

Average temperature - Folsom, CA

The warmest month (with the highest average high temperature) is July (93.7°F).
The month with the lowest average high temperature is December (54°F).

The month with the highest average low temperature is August (59.9°F).
The coldest month (with the lowest average low temperature) is December (40.1°F).

Average pressure
Folsom, CA

Average pressure - Folsom, CA

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed
Folsom, CA

Average wind speed - Folsom, CA

The windiest month (with the highest average wind speed) is February (5.5mph).
The calmest month (with the lowest average wind speed) is September (3.9mph).

Average rainfall
Folsom, CA

Average rainfall - Folsom, CA

The wettest month (with the highest rainfall) is March (2.48").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days
Folsom, CA

Average rainfall days - Folsom, CA

The month with the highest number of rainy days is March (12.9 days).
The month with the least rainy days is July (1.2 days).

Average snowfall
Folsom, CA

Average snowfall - Folsom, CA

The month with the highest snowfall is December (0.04").
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0").

Average snowfall days
Folsom, CA

Average snowfall days - Folsom, CA

The month with the highest number of snowfall days is December (0.2 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

Average daylight / Average sunshine
Folsom, CA

Average daylight / Average sunshine - Folsom, CA

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

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

Average sunshine days
Folsom, CA

Average sunshine days - Folsom, CA

The month with the most sunshine days is July (29.1 days).
The month with the least sunshine days is March (17.3 days).

Average UV index
Folsom, CA

Average UV index - Folsom, CA

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

Average visibility
Folsom, CA

Average visibility - Folsom, 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).

Folsom, California, USA

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