Climate and monthly weather forecastPlacentia, CA
Climate and monthly weather forecast
Weather in January
January, the same as December, is another refreshing winter month in Placentia, California, with an average temperature fluctuating between 50.5°F (10.3°C) and 66.6°F (19.2°C). The arrival of January sees a recorded average high-temperature of a still enjoyable 66.6°F (19.2°C), showing little divergence from the previous month's conditions. Weather in January »Weather in February
The last month of the winter, February, is another comfortable month in Placentia, California, with temperature in the range of an average high of 65.3°F (18.5°C) and an average low of 49.6°F (9.8°C). Placentia experiences an average high-temperature of a still refreshing 65.3°F (18.5°C) with the onset of February, subtly varied from January's 66.6°F (19.2°C). Weather in February »Weather in March
The first month of the spring, March, is a pleasant month in Placentia, California, with an average temperature fluctuating between 68.5°F (20.3°C) and 51.1°F (10.6°C). The start of March sees the average high-temperature at a pleasant 68.5°F (20.3°C), showing little difference from February's 65.3°F (18.5°C). Weather in March »Weather in April
April, like March, is an agreeable spring month in Placentia, California, with an average temperature ranging between max 71.6°F (22°C) and min 53.6°F (12°C). Transitioning into April, Placentia experiences an average high-temperature of a still agreeable 71.6°F (22°C), marking a minor shift from the preceding month. Weather in April »Weather in May
May, the last month of the spring in Placentia, is a moderately hot month, with an average temperature fluctuating between 55.9°F (13.3°C) and 73.6°F (23.1°C). With May's arrival, Placentia's weather records an average high-temperature of a warm 73.6°F (23.1°C), marking little difference from April's 71.6°F (22°C). Weather in May »Weather in June
The first month of the summer, June, is also a moderately hot month in Placentia, California, with temperature in the range of an average low of 58.8°F (14.9°C) and an average high of 78.3°F (25.7°C). June experiences an average high-temperature of a still warm 78.3°F (25.7°C), barely different from May's 73.6°F (23.1°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Placentia, California, with an average temperature ranging between min 64.2°F (17.9°C) and max 83.1°F (28.4°C). July experiences an average high-temperature of a still moderately hot 83.1°F (28.4°C), barely different from June's 78.3°F (25.7°C). Weather in July »Weather in August
August, the last month of the summer in Placentia, is another warm month, with an average temperature varying between 65.7°F (18.7°C) and 85.3°F (29.6°C). In Placentia, the month of August registers the highest temperatures, averaging 85.3°F (29.6°C) at the peak and 65.7°F (18.7°C) at the lowest. August's average heat index is estimated at a tropical 87.8°F (31°C). Weather in August »Weather in September
September, the first month of the autumn in Placentia, is also a moderately hot month, with an average temperature fluctuating between 84°F (28.9°C) and 64.8°F (18.2°C). September brings an average high-temperature of a still moderately hot 84°F (28.9°C), showing a slight difference from August's 85.3°F (29.6°C). Weather in September »Weather in October
October, like September, in Placentia, California, is another warm autumn month, with an average temperature ranging between min 61°F (16.1°C) and max 77.9°F (25.5°C). As September shifts into October, a minor alteration in temperatures is observed, with average highs reducing from 84°F (28.9°C) to a still moderately hot 77.9°F (25.5°C). Weather in October »Weather in November
November, the last month of the autumn in Placentia, is also an agreeable month, with an average temperature varying between 71.6°F (22°C) and 56.3°F (13.5°C). Placentia's transition into November involves a gentle shift in temperature, receding from a moderately hot 77.9°F (25.5°C) in October to a pleasant 71.6°F (22°C). Weather in November »Weather in December
December, the first month of the winter in Placentia, is still a comfortable month, with an average temperature fluctuating between 50.2°F (10.1°C) and 64.2°F (17.9°C). With average high and low temperatures of 64.2°F (17.9°C) and 50.2°F (10.1°C) respectively, December is Placentia's coldest month. Weather in December »Updated: Aug 23, 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 53.2 rainfall days, and 7.72" (196mm) of precipitation is accumulated.
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 4.
February and December, with an average of 6.8h of sunshine, are months with the least sunshine in Placentia.
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.
With an average relative humidity of 63%, June is the most humid month.
June is the month with the least rainfall. Rain falls for 1.4 days and accumulates 0.04" (1mm) of precipitation.
The month with the longest days is June, with an average of 14h and 24min of daylight.
June through September, with an average maximum UV index of 6, are months with the highest UV index.
July has the most sunshine of the year in Placentia, with an average of 12.1h of sunshine.
The warmest period is August, when temperatures fluctuate between an average high of 85.3°F (29.6°C) and a low of 65.7°F (18.7°C).
November is the least humid month, with an average relative humidity of 50%.
December, known for its average high temperature of 64.2°F (17.9°C) and an average low temperature of 50.2°F (10.1°C), is the coldest month.
The month with the most rainfall is December, when the rain falls for 6.8 days and typically aggregates up to 1.65" (42mm) of precipitation.
December has the shortest days of the year, with an average of 9h and 54min of daylight.
Average temperature
Placentia, CA
The warmest month (with the highest average high temperature) is August (85.3°F).
The month with the lowest average high temperature is December (64.2°F).
The month with the highest average low temperature is August (65.7°F).
The coldest month (with the lowest average low temperature) is February (49.6°F).
Average pressure
Placentia, CA
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.05"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.88"Hg
- Average pressure in July:
29.91"Hg - Average pressure in August:
29.89"Hg - Average pressure in September:
29.89"Hg - Average pressure in October:
29.95"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 (29.88"Hg).
Average wind speed
Placentia, CA
- Average wind speed in January:
5.1mph - Average wind speed in February:
5mph - Average wind speed in March:
5.2mph - Average wind speed in April:
5.8mph - Average wind speed in May:
5.7mph - Average wind speed in June:
5.2mph
The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity
Placentia, CA
The month with the highest relative humidity is June (63%).
The month with the lowest relative humidity is November (50%).
Average rainfall
Placentia, CA
- Average rainfall in January:
1.34" - Average rainfall in February:
1.57" - Average rainfall in March:
0.91" - Average rainfall in April:
0.55" - Average rainfall in May:
0.2" - Average rainfall in June:
0.04"
- Average rainfall in July:
0.2" - Average rainfall in August:
0.16" - Average rainfall in September:
0.16" - Average rainfall in October:
0.28" - Average rainfall in November:
0.67" - Average rainfall in December:
1.65"
The wettest month (with the highest rainfall) is December (1.65").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days
Placentia, CA
- Average rainfall days in January:
5.3 days - Average rainfall days in February:
6.3 days - Average rainfall days in March:
7.4 days - Average rainfall days in April:
6 days - Average rainfall days in May:
3.9 days - Average rainfall days in June:
1.4 days
- Average rainfall days in July:
3.3 days - Average rainfall days in August:
1.9 days - Average rainfall days in September:
3 days - Average rainfall days in October:
3.6 days - Average rainfall days in November:
4.3 days - Average rainfall days in December:
6.8 days
The month with the highest number of rainy days is March (7.4 days).
The month with the least rainy days is June (1.4 days).
Average daylight / Average sunshine
Placentia, 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:
13h and 54min - Average daylight in June:
14h and 24min
- Average daylight in July:
14h and 6min - 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:
6h and 54min - Average sunshine in February:
6h and 48min - Average sunshine in March:
8h and 48min - Average sunshine in April:
11h and 0min - Average sunshine in May:
11h and 18min - Average sunshine in June:
11h and 54min
- 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 36min - Average sunshine in November:
7h and 12min - Average sunshine in December:
6h and 48min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 48min).
Average sunshine days
Placentia, CA
- Average sunshine days in January:
24.8 days - Average sunshine days in February:
20.7 days - Average sunshine days in March:
22.5 days - Average sunshine days in April:
22.3 days - Average sunshine days in May:
24.7 days - Average sunshine days in June:
26.3 days
- Average sunshine days in July:
25.9 days - Average sunshine days in August:
26.7 days - Average sunshine days in September:
24.4 days - Average sunshine days in October:
24.5 days - Average sunshine days in November:
24 days - Average sunshine days in December:
23.4 days
The month with the most sunshine days is August (26.7 days).
The month with the least sunshine days is February (20.7 days).
Average UV index
Placentia, CA
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover
Placentia, CA
The months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility
Placentia, 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).
