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 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
The month of December, characterized by an average high of 55.9°F (13.3°C) and a low of 40.6°F (4.8°C), is recognized as the coldest.Humidity
In Morgan Hill, California, the average relative humidity in December is 72%.Rainfall
In Morgan Hill, in December, it is raining for 9.1 days, with typically 1.89" (48mm) of accumulated precipitation. In Morgan Hill, during the entire year, the rain falls for 68.2 days and collects up to 10.79" (274mm) of precipitation.Daylight
The month with the shortest days is December, with an average of 9h and 42min of daylight.On the first day of December in Morgan Hill, sunrise is at 7:02 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:59 pm PST.
Sunshine
With an average of 6h of sunshine, December has the least sunshine of the year in Morgan Hill.UV index
The months with the lowest UV index in Morgan Hill are January, February, November and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index, 3 during December, leads to the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Frequently asked questions
What are the coldest months in Morgan Hill?
What are the temperatures in Morgan Hill in December?
What is the average humidity in December in Morgan Hill?
How much does it rain in Morgan Hill in December?
What is the month with the shortest days in Morgan Hill?
How many hours of daylight does Morgan Hill have in December?
When is the sunrise / sunset in December in Morgan Hill?
What is the month with the least sunshine in Morgan Hill?
How many hours of sunshine does Morgan Hill have in December?
What is the month with the lowest UV index in Morgan Hill?
What is the UV index reading in December in Morgan Hill?
Average temperature in December
Morgan Hill, CA
- Average high temperature in December: 55.9°F
The warmest months (with the highest average high temperature) are July and August (85.5°F).
The month with the lowest average high temperature is December (55.9°F).
- Average low temperature in December: 40.6°F
The month with the highest average low temperature is August (55°F).
The coldest months (with the lowest average low temperature) are February and December (40.6°F).
Average pressure in December
Morgan Hill, 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, August and September (29.92"Hg).
Average wind speed in December
Morgan Hill, CA
- Average wind speed in December: 4.3mph
The windiest month (with the highest average wind speed) is May (5.4mph).
The calmest months (with the lowest average wind speed) are January and November (4mph).
Average humidity in December
Morgan Hill, CA
- Average humidity in December: 72%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is July (56%).
Average rainfall in December
Morgan Hill, CA
- Average rainfall in December: 1.89"
The wettest month (with the highest rainfall) is January (1.97").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in December
Morgan Hill, CA
- Average rainfall days in December: 9.1 days
The month with the highest number of rainy days is March (12.4 days).
The month with the least rainy days is August (0.8 days).
Average daylight in December /
Average sunshine in December
Morgan Hill, CA
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 6h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in December
Morgan Hill, CA
- Average sunshine days in December: 20.7 days
The month with the most sunshine days is August (29.1 days).
The month with the least sunshine days is March (17.3 days).
Average UV index in December
Morgan Hill, 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
Morgan Hill, CA
- Average cloud cover in December: 33
The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in December
Morgan Hill, 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).
Morgan Hill, California, USA
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