Climate and monthly weather forecastCharter Oak, CA
Climate and monthly weather forecast
Weather in January
January, the same as December, is another comfortable winter month in Charter Oak, California, with temperature in the range of an average low of 46.9°F (8.3°C) and an average high of 64.9°F (18.3°C). The arrival of January brings an average high-temperature of a still enjoyable 64.9°F (18.3°C), nearly identical to December's 62.4°F (16.9°C). Weather in January »Weather in February
February, the last month of the winter in Charter Oak, is another refreshing month, with an average temperature ranging between max 64.4°F (18°C) and min 45.7°F (7.6°C). The shift into February records an average high-temperature of a still refreshing 64.4°F (18°C), subtly varied from January's 64.9°F (18.3°C). Weather in February »Weather in March
The first month of the spring, March, is an agreeable month in Charter Oak, California, with an average temperature varying between 68.2°F (20.1°C) and 47.5°F (8.6°C). Charter Oak registers an average high-temperature of a pleasant 68.2°F (20.1°C) at the commencement of March, closely related to the preceding month. Weather in March »Weather in April
April, the same as March, in Charter Oak, California, is another pleasant spring month, with an average temperature fluctuating between 50.2°F (10.1°C) and 72.3°F (22.4°C). In the transition from March to April, Charter Oak reports an average high-temperature of a still agreeable 72.3°F (22.4°C), indicating a close resemblance to the prior month. Weather in April »Weather in May
May, the last month of the spring in Charter Oak, is a moderately hot month, with temperature in the range of an average high of 75.7°F (24.3°C) and an average low of 54°F (12.2°C). Upon the onset of May, Charter Oak witnesses an average high-temperature of a warm 75.7°F (24.3°C), showing a close resemblance to the prior month. Weather in May »Weather in June
June, the first month of the summer in Charter Oak, is still a warm month, with temperature in the range of an average high of 82.9°F (28.3°C) and an average low of 57.7°F (14.3°C). With the onset of June, Charter Oak's average high-temperature sees a modest rise, moving from May's 75.7°F (24.3°C) to a still warm 82.9°F (28.3°C). Weather in June »Weather in July
July in Charter Oak, California, is a tropical summer month, with an average temperature ranging between min 63.3°F (17.4°C) and max 88.2°F (31.2°C). During July, Charter Oak records an average high-temperature of a tropical 88.2°F (31.2°C), marking a slight divergence from June's 82.9°F (28.3°C). Weather in July »Weather in August
August, the last month of the summer in Charter Oak, is another tropical month, with an average temperature fluctuating between 89.4°F (31.9°C) and 64.9°F (18.3°C). Charter Oak's August weather reaches an average high of 89.4°F (31.9°C) and an average low of 64.9°F (18.3°C), making it the warmest month. August's heat index is computed to be a tropical 91.4°F (33°C). Weather in August »Weather in September
The first month of the autumn, September, is also a hot month in Charter Oak, California, with temperature in the range of an average low of 63.3°F (17.4°C) and an average high of 86.7°F (30.4°C). With the advent of September, Charter Oak experiences an average high-temperature of a still tropical 86.7°F (30.4°C), mirroring a close resemblance to the previous month. Weather in September »Weather in October
October, the same as September, is another warm autumn month in Charter Oak, California, with temperature in the range of an average low of 58.1°F (14.5°C) and an average high of 78.3°F (25.7°C). October's arrival subtly correlates with a reduction in the average high-temperature, down from a tropical 86.7°F (30.4°C) in September to a moderately hot 78.3°F (25.7°C). Weather in October »Weather in November
The last month of the autumn, November, is also an agreeable month in Charter Oak, California, with an average temperature ranging between max 70.7°F (21.5°C) and min 51.8°F (11°C). Charter Oak in November experiences a gentle temperature dip, with average high-temperatures reducing from a moderately hot 78.3°F (25.7°C) in October to an agreeable 70.7°F (21.5°C). Weather in November »Weather in December
December, the first month of the winter in Charter Oak, is also an enjoyable month, with temperature in the range of an average low of 45.5°F (7.5°C) and an average high of 62.4°F (16.9°C). December, known for its average high temperature of 62.4°F (16.9°C) and an average low temperature of 45.5°F (7.5°C), is the coldest month. Weather in December »Updated: Feb 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
Throughout the year, there are 45.2 rainfall days, and 6.5" (165mm) of precipitation is accumulated.
The months with the least sunshine in Charter Oak, California, are January, February and December, with an average of 7h of sunshine.
The month with the most rainfall is February, when the rain falls for 5 days and typically aggregates up to 1.46" (37mm) of precipitation.
The months with the highest humidity are March and May, with an average relative humidity of 55%.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Charter Oak, California, 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 is the month with the least rainfall in Charter Oak, California. Rain falls for 1.2 days and accumulates 0.04" (1mm) of precipitation.
With an average of 14h and 24min of daylight, June has the longest days of the year.
The months with the most sunshine in Charter Oak, California, are June and July, with an average of 12.1h of sunshine.
The months with the highest UV index in Charter Oak, California, are July and August, with an average maximum UV index of 7.
Charter Oak's temperatures tend to reach their peak averages in August, with a high of 89.4°F (31.9°C) and a low of 64.9°F (18.3°C).
August and November, with an average relative humidity of 45%, are the least humid months.
Charter Oak experiences its average lowest temperatures in December, reaching a peak of 62.4°F (16.9°C) and a minimum of 45.5°F (7.5°C).
With an average of 9h and 54min of daylight, December has the shortest days of the year.
With an average maximum UV index of 3, December is the month with the lowest UV index in Charter Oak.
Average temperature
Charter Oak, CA
The warmest month (with the highest average high temperature) is August (89.4°F).
The month with the lowest average high temperature is December (62.4°F).
The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is December (45.5°F).
Average pressure
Charter Oak, CA
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.05"Hg - Average pressure in March:
30.02"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.87"Hg
- Average pressure in July:
29.9"Hg - Average pressure in August:
29.88"Hg - Average pressure in September:
29.88"Hg - Average pressure in October:
29.94"Hg - Average pressure in November:
30.03"Hg - Average pressure in December:
30.07"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed
Charter Oak, CA
- Average wind speed in January:
5.2mph - Average wind speed in February:
4.9mph - Average wind speed in March:
5.1mph - Average wind speed in April:
5.7mph - Average wind speed in May:
5.7mph - Average wind speed in June:
5.3mph
- Average wind speed in July:
5mph - Average wind speed in August:
4.7mph - Average wind speed in September:
4.3mph - Average wind speed in October:
4.6mph - Average wind speed in November:
4.8mph - Average wind speed in December:
5.1mph
The windiest months (with the highest average wind speed) are April and May (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.3mph).
Average humidity
Charter Oak, CA
The months with the highest relative humidity are March and May (55%).
The months with the lowest relative humidity are August and November (45%).
Average rainfall
Charter Oak, CA
- Average rainfall in January:
1.06" - Average rainfall in February:
1.46" - Average rainfall in March:
0.67" - Average rainfall in April:
0.47" - Average rainfall in May:
0.24" - Average rainfall in June:
0.04"
The wettest month (with the highest rainfall) is February (1.46").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days
Charter Oak, CA
- Average rainfall days in January:
4.9 days - Average rainfall days in February:
5 days - Average rainfall days in March:
6.3 days - Average rainfall days in April:
4.8 days - Average rainfall days in May:
3.4 days - Average rainfall days in June:
1.2 days
- Average rainfall days in July:
3.5 days - Average rainfall days in August:
1.8 days - Average rainfall days in September:
2.5 days - Average rainfall days in October:
2.6 days - Average rainfall days in November:
3.5 days - Average rainfall days in December:
5.7 days
The month with the highest number of rainy days is March (6.3 days).
The month with the least rainy days is June (1.2 days).
Average daylight / Average sunshine
Charter Oak, CA
- Average daylight in January:
10h and 12min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 6min - Average daylight in May:
14h and 0min - Average daylight in June:
14h and 24min
- Average daylight in July:
14h and 12min - Average daylight in August:
13h and 24min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 24min - Average daylight in December:
9h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January:
7h and 0min - Average sunshine in February:
7h and 0min - Average sunshine in March:
9h and 0min - Average sunshine in April:
11h and 24min - Average sunshine in May:
11h and 48min - Average sunshine in June:
12h and 6min
- Average sunshine in July:
12h and 6min - Average sunshine in August:
12h and 0min - Average sunshine in September:
10h and 42min - Average sunshine in October:
8h and 48min - Average sunshine in November:
7h and 18min - Average sunshine in December:
7h and 0min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 7h and 0min).
Average sunshine days
Charter Oak, CA
- Average sunshine days in January:
25.1 days - Average sunshine days in February:
22 days - Average sunshine days in March:
24.6 days - Average sunshine days in April:
24.7 days - Average sunshine days in May:
25.9 days - Average sunshine days in June:
27.8 days
- Average sunshine days in July:
25 days - Average sunshine days in August:
26.9 days - Average sunshine days in September:
25.5 days - Average sunshine days in October:
27 days - Average sunshine days in November:
25.8 days - Average sunshine days in December:
23.8 days
The month with the most sunshine days is June (27.8 days).
The month with the least sunshine days is February (22 days).
Average UV index
Charter Oak, CA
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover
Charter Oak, CA
The months with the most cloud cover are March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility
Charter Oak, 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).
