Climate and monthly weather forecastPrinceton, CA
Climate and monthly weather forecast
Weather in January
January is a refreshing winter month in Princeton, California, with an average temperature varying between 42.6°F (5.9°C) and 56.8°F (13.8°C). The arrival of January brings an average high-temperature of a moderate 56.8°F (13.8°C), closely following the temperature pattern of December. Weather in January »Weather in February
The last month of the winter, February, is another mild month in Princeton, California, with an average temperature ranging between min 43°F (6.1°C) and max 59.7°F (15.4°C). February's weather displays an average high-temperature of a still moderate 59.7°F (15.4°C), slightly varied from January's 56.8°F (13.8°C). Weather in February »Weather in March
March, the first month of the spring in Princeton, is a comfortable month, with an average temperature fluctuating between 64°F (17.8°C) and 44.4°F (6.9°C). As Princeton welcomes March, the average high-temperature is noted at an enjoyable 64°F (17.8°C), closely aligning with the preceding month. Weather in March »Weather in April
April in Princeton, California, is a pleasant spring month, with an average temperature ranging between max 71.6°F (22°C) and min 48.6°F (9.2°C). In Princeton, the onset of April comes with a modest high-temperature shift, transitioning from March's refreshing 64°F (17.8°C) to an agreeable 71.6°F (22°C). Weather in April »Weather in May
The last month of the spring, May, is a moderately hot month in Princeton, California, with an average temperature varying between 54.1°F (12.3°C) and 80.4°F (26.9°C). Princeton observes a slight ascent in average high-temperatures during May, adjusting from a pleasant 71.6°F (22°C) in April to a moderately hot 80.4°F (26.9°C). Weather in May »Weather in June
The first month of the summer, June, is a tropical month in Princeton, California, with an average temperature varying between 60.3°F (15.7°C) and 91.2°F (32.9°C). The arrival of June sees a shift in the average high-temperature, moving from a warm 80.4°F (26.9°C) in May to a hot 91.2°F (32.9°C). Weather in June »Weather in July
July in Princeton, California, is a sweltering summer month, with temperature in the range of an average high of 98.8°F (37.1°C) and an average low of 61.5°F (16.4°C). July, known for its average high temperature of 98.8°F (37.1°C) and an average low temperature of 61.5°F (16.4°C), is the warmest month. Weather in July »Weather in August
August, the last month of the summer in Princeton, is also a sweltering month, with an average temperature fluctuating between 97°F (36.1°C) and 61.3°F (16.3°C). August begins with an average high-temperature of a still very hot 97°F (36.1°C), reflecting close similarity to the preceding month. Weather in August »Weather in September
September, the first month of the autumn in Princeton, is still a tropical month, with an average temperature fluctuating between 61°F (16.1°C) and 90.7°F (32.6°C). September's arrival aligns with a minor decrease in average high-temperatures, from August's fiery hot 97°F (36.1°C) to a tropical 90.7°F (32.6°C). Weather in September »Weather in October
October, like September, in Princeton, California, is a moderately hot autumn month, with temperature in the range of an average high of 77.5°F (25.3°C) and an average low of 54.9°F (12.7°C). Arrival of October comes with a reduction in the average high-temperature, falling from a tropical 90.7°F (32.6°C) in September to a warm 77.5°F (25.3°C). Weather in October »Weather in November
November, the last month of the autumn in Princeton, is also an enjoyable month, with an average temperature varying between 63.9°F (17.7°C) and 47.3°F (8.5°C). The start of November signals a decrease in the average high-temperature, transitioning from a warm 77.5°F (25.3°C) in October to a comfortable 63.9°F (17.7°C). Weather in November »Weather in December
December, the first month of the winter in Princeton, is also a fresh month, with temperature in the range of an average low of 42.1°F (5.6°C) and an average high of 54.5°F (12.5°C). December tends to be the coldest month, with temperatures averaging a daily high of 54.5°F (12.5°C) and a low of 42.1°F (5.6°C). Weather in December »Updated: Aug 14, 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
In Princeton, during the entire year, the rain falls for 58.9 days and collects up to 6.89" (175mm) of precipitation.
The wettest months are February and December, with an average 1.3" (33mm) of rainfall.
The months with the lowest UV index are February, November and December, with an average maximum UV index of 3.
The most humid month is March, with an average relative humidity of 71%.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Princeton, 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.
June has the longest days of the year, with an average of 14h and 54min of daylight.
The months with the highest UV index are June through August, with an average maximum UV index of 7.
With average high temperatures of 98.8°F (37.1°C) and lows of 61.5°F (16.4°C), July is the warmest month.
The months with the least rainfall are July and August Rain falls for 1 days and accumulates 0.04" (1mm) of rain.
July has the most sunshine of the year, with an average of 12.1h of sunshine.
The least humid month is September, with an average relative humidity of 36%.
Princeton experiences its lowest temperatures in December, with an average peak of 54.5°F (12.5°C) and a low of 42.1°F (5.6°C).
With an average of 9h and 24min of daylight, December has the shortest days of the year in Princeton.
The month with the least sunshine is December, with an average of 5.8h of sunshine.
Average temperature
Princeton, CA
The warmest month (with the highest average high temperature) is July (98.8°F).
The month with the lowest average high temperature is December (54.5°F).
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is December (42.1°F).
Average pressure
Princeton, CA
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
30.02"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.9"Hg
- Average pressure in July:
29.91"Hg - Average pressure in August:
29.91"Hg - Average pressure in September:
29.91"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed
Princeton, CA
- Average wind speed in January:
5.5mph - Average wind speed in February:
6.5mph - Average wind speed in March:
6.6mph - Average wind speed in April:
6.3mph - Average wind speed in May:
6.3mph - Average wind speed in June:
6mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
5mph - Average wind speed in September:
5.1mph - Average wind speed in October:
6mph - Average wind speed in November:
5.5mph - Average wind speed in December:
5.9mph
The windiest month (with the highest average wind speed) is March (6.6mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity
Princeton, CA
The month with the highest relative humidity is March (71%).
The month with the lowest relative humidity is September (36%).
Average rainfall
Princeton, CA
- Average rainfall in January:
0.94" - Average rainfall in February:
1.3" - Average rainfall in March:
1.06" - Average rainfall in April:
0.47" - Average rainfall in May:
0.35" - Average rainfall in June:
0.12"
- Average rainfall in July:
0.04" - Average rainfall in August:
0.04" - Average rainfall in September:
0.08" - Average rainfall in October:
0.39" - Average rainfall in November:
0.79" - Average rainfall in December:
1.3"
The wettest months (with the highest rainfall) are February and December (1.3").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days
Princeton, CA
- Average rainfall days in January:
7.5 days - Average rainfall days in February:
7.3 days - Average rainfall days in March:
10.4 days - Average rainfall days in April:
7.3 days - Average rainfall days in May:
4.7 days - Average rainfall days in June:
1.8 days
- Average rainfall days in July:
1 days - Average rainfall days in August:
1.3 days - Average rainfall days in September:
1.7 days - Average rainfall days in October:
2.7 days - Average rainfall days in November:
5.6 days - Average rainfall days in December:
7.6 days
The month with the highest number of rainy days is March (10.4 days).
The month with the least rainy days is July (1 days).
Average daylight / Average sunshine
Princeton, CA
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 24min - Average daylight in June:
14h and 54min
- Average daylight in July:
14h and 36min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 24min
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 January:
5h and 54min - Average sunshine in February:
6h and 6min - Average sunshine in March:
7h and 54min - Average sunshine in April:
10h and 12min - Average sunshine in May:
11h and 0min - Average sunshine in June:
11h and 48min
- Average sunshine in July:
12h and 6min - Average sunshine in August:
11h and 54min - Average sunshine in September:
11h and 12min - Average sunshine in October:
7h and 6min - Average sunshine in November:
6h and 30min - Average sunshine in December:
5h and 48min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days
Princeton, CA
- Average sunshine days in January:
22.7 days - Average sunshine days in February:
20 days - Average sunshine days in March:
19.7 days - Average sunshine days in April:
21.3 days - Average sunshine days in May:
25.4 days - Average sunshine days in June:
27.6 days
- Average sunshine days in July:
29.8 days - Average sunshine days in August:
29.1 days - Average sunshine days in September:
28 days - Average sunshine days in October:
27.6 days - Average sunshine days in November:
23.6 days - Average sunshine days in December:
22.5 days
The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is March (19.7 days).
Average UV index
Princeton, CA
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
Princeton, CA
The months with the most cloud cover are March and December (Cloud cover 36).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility
Princeton, CA
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).
