Weather in January
January, the same as December, in Mount Hamilton, California, is another chilly winter month, with temperature in the range of an average low of 36.9°F (2.7°C) and an average high of 48.6°F (9.2°C).
On the first day of the month, sunrise is at 7:20 am and sunset at 4:59 pm. On the last day of January, sunrise is at 7:10 am and sunset at 5:29 pm PST.
Temperature
The coldest temperatures occur during January, when averages reach a peak of 48.6°F (9.2°C) and a low of 36.9°F (2.7°C).Rainfall
The month with the most rainfall is January, when 4.45" (113mm) of precipitation is typically aggregated.Snowfall
January through April, November and December are months with snowfall. January is the month with the most snowfall, with 5" (127mm) of accumulated snow.Daylight
The average length of the day in January is 9h and 56min.On the first day of the month, sunrise is at 7:20 am and sunset at 4:59 pm. On the last day of January, sunrise is at 7:10 am and sunset at 5:29 pm PST.
Updated: Aug 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
The coldest period tends to be January, when average temperatures fluctuate between a high of 48.6°F (9.2°C) and a low of 36.9°F (2.7°C).
What are the temperatures in January?
Mount Hamilton in January has an average high-temperature of 48.6°F (9.2°C) and an average low-temperature of 36.9°F (2.7°C).
What is the rainiest month?
The month with the most rainfall is January, when 4.45" (113mm) of precipitation is typically aggregated.
How much does it rain in January?
During January, Mount Hamilton regularly aggregates up to 4.45" (113mm) of precipitation.
When does it snow the most?
January is the month with the most snowfall, with 5" (127mm) of accumulated snow.
How much does it snow in January?
In Mount Hamilton, in January, 5" (127mm) of snow is typically accumulated.
What is the average length of the day in January?
In January, the average day length is 9h and 56min.
What time are sunrise and sunset in January?
In January, on the first day of the month, sunrise is at 7:20 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:29 pm PST.
Average temperature in January
Mount Hamilton, CA
- Average high temperature in January: 48.5°F
The warmest month (with the highest average high temperature) is July (78.7°F).
The month with the lowest average high temperature is January (48.5°F).
- Average low temperature in January: 36.8°F
The month with the highest average low temperature is July (63.3°F).
The coldest months (with the lowest average low temperature) are February and March (36.7°F).
Average rainfall in January
Mount Hamilton, CA
- Average rainfall in January: 4.4"
The wettest month (with the highest rainfall) is January (4.4").
The driest month (with the least rainfall) is July (0").
Average snowfall in January
Mount Hamilton, CA
- Average snowfall in January: 5"
The month with the highest snowfall is January (5").
The months with the least snowfall are May, June, July, August, September and October (0").
Average daylight in January
Mount Hamilton, CA
- Average daylight in January: 9h and 5min
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 36min).
Mount Hamilton, California, USA
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location