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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). 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). Weather in January »
Weather in February
The last month of the winter, February, is also a frosty month in Mount Hamilton, California, with temperature in the range of an average high of 48.9°F (9.4°C) and an average low of 36.7°F (2.6°C). Mount Hamilton's weather, upon February's arrival, documents an average high-temperature of a still frosty 48.9°F (9.4°C), nearly identical to the prior month. Weather in February »
Weather in March
March, the first month of the spring in Mount Hamilton, is a cool month, with an average temperature ranging between max 50.2°F (10.1°C) and min 36.7°F (2.6°C). During March, Mount Hamilton observes a subtle ascent to a fresh 50.2°F (10.1°C) from February's 48.9°F (9.4°C) in the average high-temperature. Weather in March »
Weather in April
April, like March, in Mount Hamilton, California, is another fresh spring month, with an average temperature fluctuating between 55.2°F (12.9°C) and 39.6°F (4.2°C). April's advent presents an average high-temperature of a still fresh 55.2°F (12.9°C), indicating a slight variation from the conditions of the previous month. Weather in April »
Weather in May
The last month of the spring, May, is a refreshing month in Mount Hamilton, California, with temperature in the range of an average low of 46.2°F (7.9°C) and an average high of 63.1°F (17.3°C). A minor escalation in the average high-temperature is seen with the onset of May, moving from a cool 55.2°F (12.9°C) in April to a refreshing 63.1°F (17.3°C). Weather in May »
Weather in June
June, the first month of the summer in Mount Hamilton, is an agreeable month, with an average temperature varying between 71.4°F (21.9°C) and 54.3°F (12.4°C). Mount Hamilton observes a slight uplift in the average high-temperature with the onset of June, adjusting from May's comfortable 63.1°F (17.3°C) to a pleasant 71.4°F (21.9°C). Weather in June »
Weather in July
July is a warm summer month in Mount Hamilton, California, with temperature in the range of an average low of 63.3°F (17.4°C) and an average high of 78.6°F (25.9°C). Mount Hamilton's warmest weather arrives in July, when temperatures average a high of 78.6°F (25.9°C) and a low of 63.3°F (17.4°C). Weather in July »
Weather in August
August, the last month of the summer in Mount Hamilton, is also a moderately hot month, with an average temperature ranging between max 78.1°F (25.6°C) and min 62.4°F (16.9°C). Mount Hamilton commences August with an average high-temperature of a still warm 78.1°F (25.6°C), maintaining a close resemblance to the previous month. Weather in August »
Weather in September
September, the first month of the autumn in Mount Hamilton, is still a warm month, with temperature in the range of an average high of 74.1°F (23.4°C) and an average low of 58.5°F (14.7°C). The commencement of September notes an average high-temperature of a still moderately hot 74.1°F (23.4°C), exhibiting little difference from the previous month. Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Mount Hamilton, California, with an average temperature ranging between min 50.7°F (10.4°C) and max 65.3°F (18.5°C). October's arrival subtly correlates with a reduction in the average high-temperature, down from a warm 74.1°F (23.4°C) in September to a refreshing 65.3°F (18.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Mount Hamilton, is also a fresh month, with an average temperature ranging between max 54.9°F (12.7°C) and min 42.1°F (5.6°C). With November's arrival, Mount Hamilton's weather changes as the average high-temperature falls from a refreshing 65.3°F (18.5°C) in October to a cool 54.9°F (12.7°C). Weather in November »
Weather in December
December, the first month of the winter in Mount Hamilton, is also a frosty month, with an average temperature fluctuating between 37°F (2.8°C) and 48.9°F (9.4°C). A mild drop in Mount Hamilton's average high-temperature is observed in December, transitioning from a fresh 54.9°F (12.7°C) in November to a frosty 48.9°F (9.4°C). Weather in December »
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 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?
During the entire year, Mount Hamilton aggregates up to 23.62" (600mm) of precipitation.
When does it snow in Mount Hamilton?
Months with snowfall are January through April, November and December.
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 Mount Hamilton, California, during the entire year, snow aggregates up to 17.72" (450mm).
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.
When it does not snow?
May through October are months without snowfall.
When are the longest days?
With an average of 14h and 42min of daylight, June has the longest days of the year.
What month is the hottest in Mount Hamilton?
In Mount Hamilton, the peak average temperatures are observed in July, with a high of 78.6°F (25.9°C) and a low of 63.3°F (17.4°C).
What is the driest month?
The month with the least rainfall is July, when 0.04" (1mm) of precipitation is typically aggregated.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 36min of daylight.
Average temperature
Mount Hamilton, CA
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).
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
Mount Hamilton, CA
The wettest month (with the highest rainfall) is January (4.4").
The driest month (with the least rainfall) is July (0").
Average snowfall
Mount Hamilton, CA
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
Mount Hamilton, CA
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 4min
- Average daylight in July:
14h and 2min - Average daylight in August:
13h and 3min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - 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 36min).
Mount Hamilton, California, USA
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