Monthly weather forecast and climate
Gridley, CA

Weather in January

January is a mild winter month in Gridley, California, with temperature in the range of an average low of 41.9°F (5.5°C) and an average high of 56.8°F (13.8°C). In January, the average high-temperature is essentially the same as in December - a mild 56.8°F (13.8°C). Weather in January »

Weather in February

February, the last month of the winter, in Gridley, is another mild month, with temperature in the range of an average high of 58.8°F (14.9°C) and an average low of 41.9°F (5.5°C). In Gridley, the average high-temperature in February is relatively the same as in January - a still moderate 58.8°F (14.9°C). Weather in February »

Weather in March

The first month of the spring, March, is a comfortable month in Gridley, California, with average temperature fluctuating between 44.2°F (6.8°C) and 62.2°F (16.8°C). In March, the average high-temperature is relatively the same as in February - an enjoyable 62.2°F (16.8°C). Weather in March »

Weather in April

April in Gridley, California, is an agreeable spring month, with average temperature fluctuating between 69.8°F (21°C) and 48°F (8.9°C). In April, the average high-temperature marginally rises, from an enjoyable 62.2°F (16.8°C) in March, to an agreeable 69.8°F (21°C). Weather in April »

Weather in May

The last month of the spring, May, is a warm month in Gridley, California, with average temperature ranging between min 53.6°F (12°C) and max 78.4°F (25.8°C). In May, the average high-temperature marginally rises, from a pleasant 69.8°F (21°C) in April, to a moderately hot 78.4°F (25.8°C). Weather in May »

Weather in June

June, the first month of the summer, in Gridley, is a hot month, with average temperature ranging between min 60.3°F (15.7°C) and max 89.2°F (31.8°C). In Gridley, California, the average high-temperature in June rises, from a moderately hot 78.4°F (25.8°C) in May, to a tropical 89.2°F (31.8°C). Weather in June »

Weather in July

July is a very hot summer month in Gridley, California, with average temperature ranging between max 96.4°F (35.8°C) and min 63.1°F (17.3°C). With an average high-temperature of 96.4°F (35.8°C) and an average low-temperature of 63.1°F (17.3°C), July is the warmest month. Weather in July »

Weather in August

August, the last month of the summer, in Gridley, is another very hot month, with average temperature ranging between max 95.2°F (35.1°C) and min 62.2°F (16.8°C). In Gridley, the average high-temperature in August is almost the same as in July - a still sweltering 95.2°F (35.1°C). Weather in August »

Weather in September

September, the first month of the autumn, in Gridley, is still a hot month, with average temperature varying between 89.2°F (31.8°C) and 60.8°F (16°C). In Gridley, the average high-temperature slightly decreases, from a sweltering 95.2°F (35.1°C) in August, to a hot 89.2°F (31.8°C). Weather in September »

Weather in October

October, like September, in Gridley, California, is another warm autumn month, with average temperature varying between 76.6°F (24.8°C) and 54.1°F (12.3°C). In October, the average high-temperature decreases, from a hot 89.2°F (31.8°C) in September, to a warm 76.6°F (24.8°C). Weather in October »

Weather in November

The last month of the autumn, November, is also an enjoyable month in Gridley, California, with temperature in the range of an average high of 63.3°F (17.4°C) and an average low of 46°F (7.8°C). In Gridley, the average high-temperature drops, from a moderately hot 76.6°F (24.8°C) in October, to an enjoyable 63.3°F (17.4°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cool month in Gridley, California, with average temperature varying between 54.5°F (12.5°C) and 41°F (5°C). The coldest month is December, with an average high-temperature of 54.5°F (12.5°C) and an average low-temperature of 41°F (5°C). Weather in December »
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FAQ

How much does it rain in Gridley?

Throughout the year, in Gridley, there are 81.5 rainfall days, and 21.34" (542mm) of precipitation is accumulated.

When does it snow in Gridley?

January and February are months with snowfall in Gridley.

How much does it snow in Gridley?

Throughout the year, in Gridley, 0.5" (12.7mm) of snow is accumulated.

When does it snow the most in Gridley?

January is the month with the most snowfall, with 0.4" (10.2mm) of accumulated snow.

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

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

What is the wettest month in Gridley?

The wettest months are February and March, with an average 3.98" (101mm) of rainfall.

What is the most humid month in Gridley?

With an average relative humidity of 72%, March is the most humid month in Gridley, California.

When it does not snow in Gridley?

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

When are the longest days in Gridley?

With an average of 14.9h of daylight, June has the longest days of the year.

When is the highest UV index in Gridley?

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

What is the warmest month in Gridley?

The warmest month in Gridley, California, is July, with an average high-temperature of 96.4°F (35.8°C) and an average low-temperature of 63.1°F (17.3°C).

What is the least humid month in Gridley?

July is the least humid month in Gridley, with an average relative humidity of 35%.

What is the driest month in Gridley?

July is the month with the least rainfall in Gridley, California. Rain falls for 1.4 days and accumulates 0.04" (1mm) of precipitation.

What month has the most sunshine in Gridley?

July has the most sunshine of the year, with an average of 12.2h of sunshine.

What is the coldest month in Gridley?

December is the coldest month, with an average high-temperature of 54.5°F (12.5°C) and an average low-temperature of 41°F (5°C).

What is the month with the shortest days in Gridley?

With an average of 9.4h of daylight, December has the shortest days of the year in Gridley.

What is the month with the least sunshine in Gridley?

December has the least sunshine of the year, with an average of 5.9h of sunshine.

Average temperature
Gridley, CA

Average temperature - Gridley, CA

The warmest month (with the highest average high temperature) is July (96.4°F).
The month with the lowest average high temperature is December (54.5°F).

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is December (41°F).

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Average pressure
Gridley, CA

Average pressure - Gridley, CA

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

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Average wind speed
Gridley, CA

Average wind speed - Gridley, CA

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

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Average rainfall
Gridley, CA

Average rainfall - Gridley, CA

The wettest months (with the highest rainfall) are February and March (3.98").
The driest month (with the least rainfall) is July (0.04").

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Average rainfall days
Gridley, CA

Average rainfall days - Gridley, CA

The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is July (1.4 days).

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Average snowfall
Gridley, CA

Average snowfall - Gridley, CA

The month with the highest snowfall is January (0.4").
Months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days
Gridley, CA

Average snowfall days - Gridley, CA

The month with the highest number of snowfall days is December (0.1 days).
Months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

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Average daylight / Average sunshine
Gridley, CA

Average daylight / Average sunshine - Gridley, CA

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.4h).

The month with the most sunshine is July (Average sunshine: 12.2h).
The month with the least sunshine is December (Average sunshine: 5.9h).

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Average sunshine days
Gridley, CA

Average sunshine days - Gridley, CA

The month with the most sunshine days is July (29.1 days).
The month with the least sunshine days is March (16 days).

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Average UV index
Gridley, CA

Average UV index - Gridley, CA

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

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Average visibility
Gridley, CA

Average visibility - Gridley, 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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