December weather forecast
Santa Ysabel, CA

Weather in December

December, the first month of the winter, in Santa Ysabel, is still a comfortable month, with average temperature fluctuating between 62.8°F (17.1°C) and 44.6°F (7°C).

Temperature

December is the coldest month, with an average high-temperature of 62.8°F (17.1°C) and an average low-temperature of 44.6°F (7°C).

Humidity

The average relative humidity in December is 58%.

Rainfall

In December, in Santa Ysabel, California, the rain falls for 5.4 days. Throughout December, 0.75" (19mm) of precipitation is accumulated. Throughout the year, there are 54.6 rainfall days, and 6.06" (154mm) of precipitation is accumulated.

Daylight

The month with the shortest days in Santa Ysabel is December, with an average of 10h of daylight.

Sunshine

Months with the least sunshine are January, February and December, with an average of 6.8h of sunshine.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to the UV radiation for the ordinary person.
Note: In December, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the coldest month in Santa Ysabel?

December is the coldest month, with an average high-temperature of 62.8°F (17.1°C) and an average low-temperature of 44.6°F (7°C).

What is the average humidity in December in Santa Ysabel?

In December, the average relative humidity in Santa Ysabel is 58%.

How much does it rain in Santa Ysabel in December?

In Santa Ysabel, during December, the rain falls for 5.4 days and regularly aggregates up to 0.75" (19mm) of precipitation.

What is the month with the shortest days in Santa Ysabel?

With an average of 10h of daylight, December has the shortest days of the year in Santa Ysabel.

How many hours of daylight does Santa Ysabel have in December?

The average length of the day in December is 10h.

What is the month with the least sunshine in Santa Ysabel?

Months with the least sunshine in Santa Ysabel are January, February and December, with an average of 6.8h of sunshine.

How many hours of sunshine does Santa Ysabel have in December?

In December, the average sunshine in Santa Ysabel is 6.8h.

When is the lowest UV index in Santa Ysabel?

With an average maximum UV index of 3, December is the month with the lowest UV index in Santa Ysabel, California.

What is the UV index reading in December in Santa Ysabel?

In Santa Ysabel, the average daily maximum UV index in December is 3. A UV Index of 3 to 5 symbolizes a medium health risk from unsafe exposure to the Sun's UV rays.

Average temperature in December
Santa Ysabel, CA

Average temperature in December - Santa Ysabel, CA
  • Average high temperature in December: 62.8°F

The warmest month (with the highest average high temperature) is August (87.1°F).
The month with the lowest average high temperature is December (62.8°F).

  • Average low temperature in December: 44.6°F

The month with the highest average low temperature is August (63.7°F).
The coldest months (with the lowest average low temperature) are February and December (44.6°F).

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Average pressure in December
Santa Ysabel, CA

Average pressure in December - Santa Ysabel, CA
  • Average pressure in December: 30.06"

The month with the highest atmospheric pressure is January (30.09").
The month with the lowest atmospheric pressure is June (29.86").

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Average wind speed in December
Santa Ysabel, CA

Average wind speed in December - Santa Ysabel, CA
  • Average wind speed in December: 5mph

The windiest month (with the highest average wind speed) is April (5.3mph).
The calmest months (with the lowest average wind speed) are August and September (4mph).

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Average humidity in December
Santa Ysabel, CA

Average humidity in December - Santa Ysabel, CA
  • Average humidity in December: 58%

The month with the highest relative humidity is May (65%).
The month with the lowest relative humidity is November (52%).

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Average rainfall in December
Santa Ysabel, CA

Average rainfall in December - Santa Ysabel, CA
  • Average rainfall in December: 0.75"

The wettest month (with the highest rainfall) is February (1.02").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in December
Santa Ysabel, CA

Average rainfall days in December - Santa Ysabel, CA
  • Average rainfall days in December: 5.4 days

The month with the highest number of rainy days is March (7.4 days).
The month with the least rainy days is June (1.5 days).

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Average daylight in December /
Average sunshine in December
Santa Ysabel, CA

Average daylight in December / Average sunshine in December - Santa Ysabel, CA
  • Average daylight in December: 10h

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in December: 6.8h

The month with the most sunshine is July (Average sunshine: 12.1h).
Months with the least sunshine are January, February and December (Average sunshine: 6.8).

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Average sunshine days in December
Santa Ysabel, CA

Average sunshine days in December - Santa Ysabel, CA
  • Average sunshine days in December: 24.4 days

The month with the most sunshine days is June (27.7 days).
The month with the least sunshine days is July (20.7 days).

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Average UV index in December
Santa Ysabel, CA

Average UV index in December - Santa Ysabel, CA
  • Average UV index in December: 3

Months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in December
Santa Ysabel, CA

Average cloud cover in December - Santa Ysabel, CA
  • Average cloud cover in December: 23

The month with the most cloud cover is March (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 6).

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Average visibility in December
Santa Ysabel, CA

Average visibility in December - Santa Ysabel, CA
  • Average visibility in December: 6mi

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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