December weather forecast
Nelson, CA

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Weather in December

December, the first month of the winter in Nelson, is still a cool month, with an average temperature ranging between max 54.5°F (12.5°C) and min 40.6°F (4.8°C).

Temperature

December, marked by an average high-temperature of 54.5°F (12.5°C) and a low-temperature of 40.6°F (4.8°C), is the coldest month.

Humidity

In Nelson, the average relative humidity in December is 67%.

Rainfall

In Nelson, in December, during 11.1 rainfall days, 4.33" (110mm) of precipitation is typically accumulated. Throughout the year, in Nelson, California, there are 80.4 rainfall days, and 24.21" (615mm) of precipitation is accumulated.

Snowfall

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

Daylight

December has the shortest days of the year, with an average of 9h and 24min of daylight.
On the first day of December, sunrise is at 7:09 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:53 pm PST.

Sunshine

With an average of 5.8h of sunshine, December has the least sunshine of the year in Nelson.

UV index

The months with the lowest UV index in Nelson are January, February, November and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In December, the maximum UV index of 3 suggests these recommendations:
Undertake protective steps - Preventing sun damage is advised. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.

Frequently asked questions

What is the coldest month in Nelson?

December, with its high-temperature average of 54.5°F (12.5°C) and a low-temperature average of 40.6°F (4.8°C), is the coldest month in Nelson.

What is the usual temperature for Nelson in December?

The average high-temperature, in December, in Nelson, is 54.5°F (12.5°C), while the average low-temperature is 40.6°F (4.8°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in June is calculated to be 87.8°F (31°C).

What is the average humidity in December in Nelson?

The average relative humidity in December is 67%.

How many days does it rain in December in Nelson?

In December, in Nelson, the rain falls for 11.1 days. Throughout December, 4.33" (110mm) of precipitation is accumulated.

What is the snowiest month in Nelson?

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

When does it start to snow in Nelson?

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

What is the month with the shortest days in Nelson?

With an average of 9h and 24min of daylight, December has the shortest days of the year in Nelson.

How many hours of daylight does Nelson have in December?

In Nelson, the average day length in December is 9h and 26min.

When is the sunrise / sunset in December in Nelson?

In December, on the first day of the month, sunrise is at 7:09 am and sunset at 4:43 pm. On the last day of the month, in Nelson, California, sunrise is at 7:27 am and sunset at 4:53 pm PST.

What is the month with the least sunshine in Nelson?

With an average of 5.8h of sunshine, December has the least sunshine of the year.

How long on average sun shines in December in Nelson?

The average sunshine duration in December in Nelson is 5.8h.

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

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

How high is the UV index in December in Nelson?

In Nelson, California, the average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
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
Nelson, CA

Average temperature in December - Nelson, CA
  • Average high temperature in December: 54.5°F

The warmest month (with the highest average high temperature) is July (95.9°F).
The month with the lowest average high temperature is December (54.5°F).

  • Average low temperature in December: 40.6°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is December (40.6°F).

Average pressure in December
Nelson, CA

Average pressure in December - Nelson, CA
  • Average pressure in December: 30.14"Hg

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

Average wind speed in December
Nelson, CA

Average wind speed in December - Nelson, CA
  • Average wind speed in December: 5.3mph

The windiest month (with the highest average wind speed) is March (6.3mph).
The calmest months (with the lowest average wind speed) are August and November (5.2mph).

Average humidity in December
Nelson, CA

Average humidity in December - Nelson, CA
  • Average humidity in December: 67%

The month with the highest relative humidity is March (72%).
The month with the lowest relative humidity is July (33%).

Average rainfall in December
Nelson, CA

Average rainfall in December - Nelson, CA
  • Average rainfall in December: 4.33"

The wettest month (with the highest rainfall) is March (4.61").
The driest month (with the least rainfall) is July (0.04").

Average rainfall days in December
Nelson, CA

Average rainfall days in December - Nelson, CA
  • Average rainfall days in December: 11.1 days

The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is July (1.3 days).

Average snowfall days in December
Nelson, CA

Average snowfall days in December - Nelson, 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).

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

Average daylight in December / Average sunshine in December - Nelson, CA
  • Average daylight in December: 9h and 2min

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

  • Average sunshine in December: 5h and 5min

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 48min).

Average sunshine days in December
Nelson, CA

Average sunshine days in December - Nelson, CA
  • Average sunshine days in December: 19.2 days

The month with the most sunshine days is July (29.3 days).
The month with the least sunshine days is March (15.5 days).

Average UV index in December
Nelson, CA

Average UV index in December - Nelson, 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).

Average cloud cover in December
Nelson, CA

Average cloud cover in December - Nelson, CA
  • Average cloud cover in December: 35

The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 4).

Average visibility in December
Nelson, CA

Average visibility in December - Nelson, 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).

Nelson, California, USA

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