December weather forecast
Lathrop, CA

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Weather in December

December, the first month of the winter in Lathrop, is also a fresh month, with an average temperature ranging between max 54.9°F (12.7°C) and min 40.6°F (4.8°C).

Temperature

December, marked by an average high-temperature of 54.9°F (12.7°C) and a low-temperature of 40.6°F (4.8°C), is the coldest month.

Humidity

The average relative humidity in December in Lathrop is 71%.

Rainfall

In Lathrop, in December, it is raining for 9.4 days, with typically 1.93" (49mm) of accumulated precipitation. In Lathrop, during the entire year, the rain falls for 67.8 days and collects up to 11.22" (285mm) of precipitation.

Snowfall

The only month with snowfall in Lathrop, California, is December. The month with the most snowfall days is December, when snow falls for 0.1 days.

Daylight

With an average of 9h and 36min of daylight, December has the shortest days of the year in Lathrop, California.
On the first day of December in Lathrop, sunrise is at 7:02 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:56 pm PST.

Sunshine

December has the least sunshine of the year, with an average of 6h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Lathrop, California. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, a daily maximum UV index of 3 leads to the following instructions:
Undertake precautions - It is suggested to shield oneself from sunburn. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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Frequently asked questions

What month is the coldest in Lathrop?

December, known for its average high temperature of 54.9°F (12.7°C) and an average low temperature of 40.6°F (4.8°C), is the coldest month.

What is the usual temperature for Lathrop in December?

The high-temperature, in December, in Lathrop, is 54.9°F (12.7°C), while the low-temperature averages to 40.6°F (4.8°C). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is calculated to be 89.6°F (32°C).

What is the average humidity in December in Lathrop?

In Lathrop, the average relative humidity in December is 71%.

How much does it rain in Lathrop in December?

In Lathrop, in December, it is raining for 9.4 days, with typically 1.93" (49mm) of accumulated precipitation.

When does it snow the most in Lathrop?

The month with the most snowfall days in Lathrop, California, is December, when snow falls for 0.1 days.

When does it start snowing in Lathrop?

December is the first month it typically snows. Throughout December, there are 0.1 snowfall days.

What is the month with the shortest days in Lathrop?

With an average of 9h and 36min of daylight, December has the shortest days of the year.

What is the average length of the day in December in Lathrop?

In December, the average day length in Lathrop is 9h and 36min.

When is the sunrise / sunset in December in Lathrop?

In December, on the first day of the month, sunrise is at 7:02 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:56 pm PST.

What is the month with the least sunshine in Lathrop?

With an average of 6h of sunshine, December has the least sunshine of the year in Lathrop, California.

How many hours of sunshine does Lathrop have in December?

The average sunshine duration in December in Lathrop is 6h.

What is the month with the lowest UV index in Lathrop?

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

What is the UV index intensity in December in Lathrop?

In December, the average daily maximum UV index in Lathrop is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Lathrop, CA

Average temperature in December - Lathrop, CA
  • Average high temperature in December: 54.9°F

The warmest month (with the highest average high temperature) is July (94.6°F).
The month with the lowest average high temperature is December (54.9°F).

  • Average low temperature in December: 40.6°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 (40.6°F).

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Average pressure in December
Lathrop, CA

Average pressure in December - Lathrop, CA
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in December
Lathrop, CA

Average wind speed in December - Lathrop, CA
  • Average wind speed in December: 5.4mph

The windiest month (with the highest average wind speed) is June (6.8mph).
The calmest month (with the lowest average wind speed) is November (4.7mph).

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Average humidity in December
Lathrop, CA

Average humidity in December - Lathrop, CA
  • Average humidity in December: 71%

The month with the highest relative humidity is January (73%).
The month with the lowest relative humidity is July (42%).

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Average rainfall in December
Lathrop, CA

Average rainfall in December - Lathrop, CA
  • Average rainfall in December: 1.93"

The wettest month (with the highest rainfall) is March (2.01").
The driest months (with the least rainfall) are July and August (0.08").

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Average rainfall days in December
Lathrop, CA

Average rainfall days in December - Lathrop, CA
  • Average rainfall days in December: 9.4 days

The month with the highest number of rainy days is March (12 days).
The month with the least rainy days is August (1.2 days).

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Average snowfall days in December
Lathrop, CA

Average snowfall days in December - Lathrop, CA
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is December (0.1 days).
The 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 in December /
Average sunshine in December
Lathrop, CA

Average daylight in December / Average sunshine in December - Lathrop, CA
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in December: 6h and 0min

The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

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Average sunshine days in December
Lathrop, CA

Average sunshine days in December - Lathrop, CA
  • Average sunshine days in December: 20.5 days

The month with the most sunshine days is August (28.8 days).
The month with the least sunshine days is March (17.5 days).

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Average UV index in December
Lathrop, CA

Average UV index in December - Lathrop, CA
  • Average UV index in December: 3

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).

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Average cloud cover in December
Lathrop, CA

Average cloud cover in December - Lathrop, CA
  • Average cloud cover in December: 33

The month with the most cloud cover is March (Cloud cover 34).
The month with the least cloud cover is July (Cloud cover 4).

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Average visibility in December
Lathrop, CA

Average visibility in December - Lathrop, CA
  • Average visibility in December: 6mi

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).

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Lathrop, California, USA

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