December weather forecast
Elmira, CA

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Weather in December

The first month of the winter, December, is still a cool month in Elmira, California, with temperature in the range of an average high of 54.7°F (12.6°C) and an average low of 41.4°F (5.2°C).

Temperature

December brings the lowest temperatures, with an average high of 54.7°F (12.6°C) and an average low of 41.4°F (5.2°C).

Humidity

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

Rainfall

In Elmira, California, in December, it is raining for 6.6 days, with typically 0.63" (16mm) of accumulated precipitation. Throughout the year, there are 47.1 rainfall days, and 4.17" (106mm) of precipitation is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 30min of daylight.
On the first day of December, sunrise is at 7:06 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:57 pm PST.

Sunshine

The month with the least sunshine is December, with an average of 5.7h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index, 3 in December, converts into the following recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.

Frequently asked questions

What is the coldest month?

December is the month when Elmira sees the average lowest temperatures, with a high of 54.7°F (12.6°C) and a low of 41.4°F (5.2°C).

What is the temperature in December?

The high-temperature, in December, in Elmira, is 54.7°F (12.6°C), while the low-temperature averages to 41.4°F (5.2°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in September is computed to be 87.8°F (31°C).

What is the average humidity in December?

The average relative humidity in December is 71%.

How many days does it rain in December?

In Elmira, in December, during 6.6 rainfall days, 0.63" (16mm) of precipitation is typically accumulated.

What is the month with the shortest days?

With an average of 9h and 30min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

In December, the average day length in Elmira is 9h and 33min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:06 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:57 pm PST.

What is the month with the least sunshine?

With an average of 5.7h of sunshine, December has the least sunshine of the year.

How long on average sun shines in December?

In Elmira, the average sunshine duration in December is 5.7h.

When is the lowest UV index?

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

How high is the UV index in December?

In December, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to the Sun's 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
Elmira, CA

Average temperature in December - Elmira, CA
  • Average high temperature in December: 54.7°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is December (54.7°F).

  • Average low temperature in December: 41.4°F

The month with the highest average low temperature is September (58.1°F).
The coldest months (with the lowest average low temperature) are January and December (41.4°F).

Average pressure in December
Elmira, CA

Average pressure in December - Elmira, CA
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).

Average wind speed in December
Elmira, CA

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

The windiest months (with the highest average wind speed) are May and June (6.8mph).
The calmest months (with the lowest average wind speed) are January and November (4.7mph).

Average humidity in December
Elmira, CA

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

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is September (48%).

Average rainfall in December
Elmira, CA

Average rainfall in December - Elmira, CA
  • Average rainfall in December: 0.63"

The wettest month (with the highest rainfall) is February (0.87").
The driest months (with the least rainfall) are July, August and September (0.04").

Average rainfall days in December
Elmira, CA

Average rainfall days in December - Elmira, CA
  • Average rainfall days in December: 6.6 days

The month with the highest number of rainy days is March (7.2 days).
The month with the least rainy days is August (1 days).

Average daylight in December /
Average sunshine in December
Elmira, CA

Average daylight in December / Average sunshine in December - Elmira, CA
  • Average daylight in December: 9h and 3min

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).

  • Average sunshine in December: 5h and 4min

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 42min).

Average sunshine days in December
Elmira, CA

Average sunshine days in December - Elmira, CA
  • Average sunshine days in December: 23.5 days

The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is February (21.5 days).

Average UV index in December
Elmira, CA

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

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in December
Elmira, CA

Average cloud cover in December - Elmira, CA
  • Average cloud cover in December: 37

The months with the most cloud cover are March and December (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 5).

Average visibility in December
Elmira, CA

Average visibility in December - Elmira, 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).

Elmira, California, USA

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