December weather forecastHenderson, NV
December
Weather in December
December takes the reins from November marking the full swing of winter. A significant drop in the average temperature sees the thermometer peak at 53.1°F (11.7°C) and bottom out at 40.1°F (4.5°C). Cloud cover increases to about 20%, often bodying a white Christmas atmosphere. Coupled with limited daylight hours and increased humidity, December's weather maintains a consistent, chilly mood throughout Henderson, setting the stage for a peaceful and frosty end to the year.Temperature
Henderson reaches its lowest average temperatures in December, measuring 53.1°F (11.7°C) at the peak and 40.1°F (4.5°C) at the lowest.Humidity
In Henderson, the average relative humidity in December is 44%.Rainfall
In Henderson, in December, it is raining for 4.5 days, with typically 0.51" (13mm) of accumulated precipitation. In Henderson, during the entire year, the rain falls for 37 days and collects up to 3.43" (87mm) of precipitation.Snowfall
January, March through December are months without snowfall in Henderson.Daylight
The month with the shortest days is December, with an average of 9h and 48min of daylight.On the first day of December in Henderson, sunrise is at 6:32 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 4:36 pm PST.
Sunshine
January and December, with an average of 7h of sunshine, are months with the least sunshine in Henderson.UV index
The month with the lowest UV index in Henderson is December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 3 during December translates into these guidelines:
Exercise prevention - Precautions against solar damage are endorsed. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Henderson, NV
- Average high temperature in December: 53.1°F
The warmest month (with the highest average high temperature) is July (101.1°F).
The month with the lowest average high temperature is December (53.1°F).
- Average low temperature in December: 40.1°F
The month with the highest average low temperature is July (81.5°F).
The coldest month (with the lowest average low temperature) is December (40.1°F).
Average pressure in December
Henderson, NV
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.76"Hg).
Average wind speed in December
Henderson, NV
- Average wind speed in December: 5.9mph
The windiest months (with the highest average wind speed) are April and June (9.3mph).
The calmest month (with the lowest average wind speed) is January (5.7mph).
Average humidity in December
Henderson, NV
- Average humidity in December: 44%
The month with the highest relative humidity is January (45%).
The month with the lowest relative humidity is June (14%).
Average rainfall in December
Henderson, NV
- Average rainfall in December: 0.51"
The wettest month (with the highest rainfall) is February (0.55").
The driest month (with the least rainfall) is June (0").
Average rainfall days in December
Henderson, NV
- Average rainfall days in December: 4.5 days
The month with the highest number of rainy days is March (5.3 days).
The month with the least rainy days is June (0.6 days).
Average snowfall in December
Henderson, NV
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.16").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Henderson, NV
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Henderson, NV
- Average daylight in December: 9h and 48min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 7h and 0min
The months with the most sunshine are June and August (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
Henderson, NV
- Average sunshine days in December: 24.7 days
The month with the most sunshine days is June (29.1 days).
The month with the least sunshine days is February (23 days).
Average UV index in December
Henderson, NV
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Henderson, NV
- Average cloud cover in December: 20
The month with the most cloud cover is December (Cloud cover 20).
The months with the least cloud cover are June, August and September (Cloud cover 6).
Average visibility in December
Henderson, NV
- 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).
