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
Hamilton City's December weather, marked by an average high temperature of 54.9°F (12.7°C) and an average low temperature of 41.9°F (5.5°C), is the coldest in the year.Humidity
In Hamilton City, the average relative humidity in December is 66%.Rainfall
In December, the rain falls for 11.7 days. Throughout December, 3.11" (79mm) of precipitation is accumulated. In Hamilton City, during the entire year, the rain falls for 82.1 days and collects up to 17.24" (438mm) of precipitation.Daylight
December has the shortest days of the year in Hamilton City, with an average of 9h and 24min of daylight.On the first day of December in Hamilton City, sunrise is at 7:10 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:28 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.UV index
February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 3 during December translates into these guidelines:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Hamilton City?
What are December temperatures in Hamilton City?
What is the average humidity in December in Hamilton City?
How much does it rain in Hamilton City in December?
What is the month with the shortest days in Hamilton City?
How many hours of daylight does Hamilton City have in December?
When is the sunrise / sunset in December in Hamilton City?
What is the month with the least sunshine in Hamilton City?
How long on average sun shines in December in Hamilton City?
What are the months with the lowest UV index in Hamilton City?
How high is the UV index in December in Hamilton City?
Average temperature in December
Hamilton City, CA
- Average high temperature in December: 54.9°F
The warmest month (with the highest average high temperature) is July (98.4°F).
The month with the lowest average high temperature is December (54.9°F).
- Average low temperature in December: 41.9°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is December (41.9°F).
Average pressure in December
Hamilton City, CA
- Average pressure in December: 30.13"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
Hamilton City, CA
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is March (7.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in December
Hamilton City, CA
- Average humidity in December: 66%
The month with the highest relative humidity is March (69%).
The months with the lowest relative humidity are July and August (32%).
Average rainfall in December
Hamilton City, CA
- Average rainfall in December: 3.11"
The wettest month (with the highest rainfall) is February (3.19").
The driest months (with the least rainfall) are July and August (0.08").
Average rainfall days in December
Hamilton City, CA
- Average rainfall days in December: 11.7 days
The month with the highest number of rainy days is March (14.1 days).
The month with the least rainy days is July (1.6 days).
Average daylight in December /
Average sunshine in December
Hamilton City, 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 12min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in December
Hamilton City, CA
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is July (29.5 days).
The month with the least sunshine days is March (16.1 days).
Average UV index in December
Hamilton City, 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 February, November and December (UV index 3).
Average cloud cover in December
Hamilton City, CA
- Average cloud cover in December: 35
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in December
Hamilton City, 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).
Hamilton City, California, USA
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