December weather forecast
El Monte, CA

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Weather in December

December, the first month of the winter in El Monte, is also an enjoyable month, with an average temperature varying between 47.3°F (8.5°C) and 63.5°F (17.5°C).

Temperature

El Monte's coldest month, December, registers temperatures that range from a high of 63.5°F (17.5°C) to a low of 47.3°F (8.5°C).

Humidity

In El Monte, the average relative humidity in December is 52%.

Rainfall

The month with the most rainfall is December, when the rain falls for 5 days and typically aggregates up to 1.22" (31mm) of precipitation.

Daylight

December has the shortest days of the year in El Monte, with an average of 9h and 54min of daylight.
On the first day of December in El Monte, California, sunrise is at 6:40 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 4:53 pm PST.

Sunshine

The average sunshine in December in El Monte is 6.9h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum daily UV index of 4 during December morphs into the following directions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.

Frequently asked questions

What month is the coldest in El Monte?

El Monte's December weather, marked by an average high temperature of 63.5°F (17.5°C) and an average low temperature of 47.3°F (8.5°C), is the coldest in the year.

What is the usual temperature for El Monte in December?

The high-temperature, in December, in El Monte, records 63.5°F (17.5°C), while the low-temperature is 47.3°F (8.5°C). The average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, in September is calculated to be 87.8°F (31°C).

What is the average humidity in December in El Monte?

The average relative humidity in December is 52%.

What is the wettest month in El Monte?

The month with the most rainfall in El Monte is December, when the rain falls for 5 days and typically aggregates up to 1.22" (31mm) of precipitation.

How many days does it rain in December in El Monte?

In El Monte, in December, during 5 rainfall days, 1.22" (31mm) of precipitation is typically accumulated.

What is the month with the shortest days in El Monte?

December has the shortest days of the year in El Monte, with an average of 9h and 54min of daylight.

What is the average length of the day in December in El Monte?

In El Monte, California, the average day length in December is 9h and 56min.

When is the sunrise / sunset in December in El Monte?

On the first day of December in El Monte, sunrise is at 6:40 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 4:53 pm PST.

How long on average sun shines in December in El Monte?

In December, the average sunshine duration in El Monte, California, is 6.9h.

What are the months with the lowest UV index in El Monte?

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

How high is the UV index in December in El Monte?

The average daily maximum UV index in December in El Monte, California, is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
El Monte, CA

Average temperature in December - El Monte, CA
  • Average high temperature in December: 63.5°F

The warmest month (with the highest average high temperature) is August (87.6°F).
The month with the lowest average high temperature is December (63.5°F).

  • Average low temperature in December: 47.3°F

The month with the highest average low temperature is August (64.9°F).
The coldest months (with the lowest average low temperature) are February and December (47.3°F).

Average pressure in December
El Monte, CA

Average pressure in December - El Monte, CA
  • Average pressure in December: 30.07"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in December
El Monte, CA

Average wind speed in December - El Monte, CA
  • Average wind speed in December: 5.2mph

The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest months (with the lowest average wind speed) are September and October (4.5mph).

Average humidity in December
El Monte, CA

Average humidity in December - El Monte, CA
  • Average humidity in December: 52%

The month with the highest relative humidity is June (58%).
The month with the lowest relative humidity is November (46%).

Average rainfall in December
El Monte, CA

Average rainfall in December - El Monte, CA
  • Average rainfall in December: 1.22"

The wettest month (with the highest rainfall) is December (1.22").
The driest month (with the least rainfall) is June (0.04").

Average rainfall days in December
El Monte, CA

Average rainfall days in December - El Monte, CA
  • Average rainfall days in December: 5 days

The month with the highest number of rainy days is March (5.3 days).
The month with the least rainy days is June (1.2 days).

Average daylight in December /
Average sunshine in December
El Monte, CA

Average daylight in December / Average sunshine in December - El Monte, CA
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in December: 6h and 5min

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

Average sunshine days in December
El Monte, CA

Average sunshine days in December - El Monte, CA
  • Average sunshine days in December: 24.9 days

The month with the most sunshine days is June (27.6 days).
The month with the least sunshine days is February (22.6 days).

Average UV index in December
El Monte, CA

Average UV index in December - El Monte, CA
  • Average UV index in December: 4

The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 4).

Average cloud cover in December
El Monte, CA

Average cloud cover in December - El Monte, CA
  • Average cloud cover in December: 22

The month with the most cloud cover is December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).

Average visibility in December
El Monte, CA

Average visibility in December - El Monte, 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).

El Monte, California, USA

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