Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
With average temperatures fluctuating between a high of 53.2°F (11.8°C) and a low of 38.3°F (3.5°C), December stands out as the coldest month.Humidity
December is the most humid month, with an average relative humidity of 52%.Rainfall
The month with the most rainfall in Helendale is December, when the rain falls for 5.4 days and typically aggregates up to 0.98" (25mm) of precipitation.Snowfall
Months with snowfall in Helendale are January, February, April, November and December. In December, in Helendale, it is snowing for 0.3 days. Throughout December, 0.91" (23mm) of snow is accumulated. In Helendale, California, during the entire year, snow falls for 2.1 days and aggregates up to 3.78" (96mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 54min of daylight.On the first day of December in Helendale, sunrise is at 6:38 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 4:48 pm PST.
Sunshine
January and December, with an average of 7h of sunshine, are months with the least sunshine in Helendale.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 value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In December, the maximum UV index of 3 transforms into these recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Frequently asked questions
What month is the coldest in Helendale?
What is the temperature in December in Helendale?
What is the most humid month in Helendale?
What is the average humidity in December in Helendale?
What is the rainiest month in Helendale?
How much does it rain in Helendale in December?
How many days does it snow in December in Helendale?
What is the month with the shortest days in Helendale?
How many hours of daylight does Helendale have in December?
When is the sunrise / sunset in December in Helendale?
What are the months with the least sunshine in Helendale?
How long on average sun shines in December in Helendale?
When is the lowest UV index in Helendale?
What is the UV index reading in December in Helendale?
Average temperature in December
Helendale, CA
- Average high temperature in December: 53.2°F
The warmest month (with the highest average high temperature) is July (92.1°F).
The month with the lowest average high temperature is December (53.2°F).
- Average low temperature in December: 38.3°F
The month with the highest average low temperature is August (68.5°F).
The coldest month (with the lowest average low temperature) is December (38.3°F).
Average pressure in December
Helendale, CA
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in December
Helendale, CA
- Average wind speed in December: 6.5mph
The windiest month (with the highest average wind speed) is May (10.3mph).
The calmest month (with the lowest average wind speed) is January (6.3mph).
Average humidity in December
Helendale, CA
- Average humidity in December: 52%
The month with the highest relative humidity is December (52%).
The month with the lowest relative humidity is August (27%).
Average rainfall in December
Helendale, CA
- Average rainfall in December: 0.98"
The wettest month (with the highest rainfall) is December (0.98").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in December
Helendale, CA
- Average rainfall days in December: 5.4 days
The month with the highest number of rainy days is March (6 days).
The month with the least rainy days is June (0.9 days).
Average snowfall in December
Helendale, CA
- Average snowfall in December: 0.91"
The month with the highest snowfall is November (1.73").
The months with the least snowfall are March, May, June, July, August, September and October (0").
Average snowfall days in December
Helendale, CA
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is February (1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Helendale, CA
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 7h and 0min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are January and December (Average sunshine: 7h and 0min).
Average sunshine days in December
Helendale, CA
- Average sunshine days in December: 24.6 days
The month with the most sunshine days is June (28.9 days).
The month with the least sunshine days is February (22.4 days).
Average UV index in December
Helendale, CA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Helendale, CA
- Average cloud cover in December: 21
The month with the most cloud cover is December (Cloud cover 21).
The months with the least cloud cover are June and August (Cloud cover 5).
Average visibility in December
Helendale, 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).
Helendale, California, USA
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