Climate and monthly weather forecastArcadia, CA
Climate and monthly weather forecast
Weather in January
January, the same as December, is another enjoyable winter month in Arcadia, California, with temperature in the range of an average low of 47.1°F (8.4°C) and an average high of 64.8°F (18.2°C). Arcadia's shift into January sets the average high-temperature at a still comfortable 64.8°F (18.2°C), a figure that deviates only slightly from December's 62.1°F (16.7°C). Weather in January »Weather in February
The last month of the winter, February, is also an enjoyable month in Arcadia, California, with an average temperature varying between 64.2°F (17.9°C) and 46.4°F (8°C). The high-temperature average in February for Arcadia is a still enjoyable 64.2°F (17.9°C), staying closely aligned with January's conditions. Weather in February »Weather in March
The first month of the spring, March, is also an enjoyable month in Arcadia, California, with an average temperature ranging between min 47.8°F (8.8°C) and max 67.6°F (19.8°C). Arcadia records an average high-temperature of a still comfortable 67.6°F (19.8°C) as March arrives, nearly mirroring the previous month's climate. Weather in March »Weather in April
April in Arcadia, California, is an agreeable spring month, with an average temperature fluctuating between 50.5°F (10.3°C) and 72°F (22.2°C). The average high-temperature during April registers at a pleasant 72°F (22.2°C), closely corresponding to the preceding month. Weather in April »Weather in May
May, the last month of the spring in Arcadia, is a warm month, with an average temperature fluctuating between 75.4°F (24.1°C) and 53.8°F (12.1°C). Arcadia ushers in May with an average high-temperature of a moderately hot 75.4°F (24.1°C), showing a close resemblance to the previous month. Weather in May »Weather in June
June, the first month of the summer in Arcadia, is also a moderately hot month, with an average temperature fluctuating between 81.3°F (27.4°C) and 57.7°F (14.3°C). The transition from May to June brings a subtle temperature rise, with average high-temperatures increasing from 75.4°F (24.1°C) to a still warm 81.3°F (27.4°C). Weather in June »Weather in July
July is a hot summer month in Arcadia, California, with temperature in the range of an average low of 63.5°F (17.5°C) and an average high of 86.5°F (30.3°C). The average high-temperature in July, at a hot 86.5°F (30.3°C), reveals a modest deviation from June's 81.3°F (27.4°C). Weather in July »Weather in August
August, the last month of the summer in Arcadia, is also a hot month, with an average temperature varying between 88.2°F (31.2°C) and 64.8°F (18.2°C). The month of August, characterized by an average high of 88.2°F (31.2°C) and a low of 64.8°F (18.2°C), is recognized as the warmest. The heat index in August is calculated to be a tropical 91.4°F (33°C). Weather in August »Weather in September
September, the first month of the autumn in Arcadia, is also a moderately hot month, with an average temperature fluctuating between 85.3°F (29.6°C) and 63.1°F (17.3°C). September's climate shows a minor adjustment in average high-temperatures to a warm 85.3°F (29.6°C) from August's 88.2°F (31.2°C). Weather in September »Weather in October
October, the same as September, is another warm autumn month in Arcadia, California, with an average temperature varying between 78.3°F (25.7°C) and 58.1°F (14.5°C). A minor decrease in the average high-temperature is observed during October, shifting from 85.3°F (29.6°C) in September to a still moderately hot 78.3°F (25.7°C). Weather in October »Weather in November
November, the last month of the autumn in Arcadia, is also an agreeable month, with temperature in the range of an average high of 70.2°F (21.2°C) and an average low of 52.5°F (11.4°C). Arcadia's November weather features a light decline in high-temperatures, reducing from a moderately hot 78.3°F (25.7°C) in October to an agreeable 70.2°F (21.2°C). Weather in November »Weather in December
The first month of the winter, December, is still a comfortable month in Arcadia, California, with an average temperature varying between 62.1°F (16.7°C) and 46.2°F (7.9°C). December, known for its average high temperature of 62.1°F (16.7°C) and an average low temperature of 46.2°F (7.9°C), is the coldest month. Weather in December »Updated: Jul 3, 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 Arcadia, during the entire year, the rain falls for 48.7 days and collects up to 7.48" (190mm) of precipitation.
The months with the least sunshine are January, February and December, with an average of 6.9h of sunshine.
March, May and June, with an average relative humidity of 56%, are most humid months.
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.
The month with the least rainfall is June, when the rain falls for 1.3 days and typically collects 0.04" (1mm) of precipitation.
June has the longest days of the year, with an average of 14h and 24min of daylight.
The months with the highest UV index are June through September, with an average maximum UV index of 6.
The month with the most sunshine is July, with an average of 12.1h of sunshine.
August tends to be the warmest month, with temperatures averaging a daily high of 88.2°F (31.2°C) and a low of 64.8°F (18.2°C).
The least humid month is November, with an average relative humidity of 46%.
December is the coldest month of the year, registering average temperatures as high as 62.1°F (16.7°C) and as low as 46.2°F (7.9°C).
The month with the most rainfall is December, when the rain falls for 5.8 days and typically aggregates up to 1.54" (39mm) of precipitation.
The month with the shortest days is December, with an average of 9h and 54min of daylight.
With an average maximum UV index of 3, December is the month with the lowest UV index.
Average temperature
Arcadia, CA
The warmest month (with the highest average high temperature) is August (88.2°F).
The month with the lowest average high temperature is December (62.1°F).
The month with the highest average low temperature is August (64.8°F).
The coldest month (with the lowest average low temperature) is December (46.2°F).
Average pressure
Arcadia, CA
- Average pressure in January:
30.11"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:
30.08"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed
Arcadia, CA
- Average wind speed in January:
5.4mph - 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
- Average wind speed in July:
4.8mph - Average wind speed in August:
4.6mph - Average wind speed in September:
4.4mph - Average wind speed in October:
4.6mph - Average wind speed in November:
5mph - Average wind speed in December:
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 (4.4mph).
Average humidity
Arcadia, CA
The months with the highest relative humidity are March, May and June (56%).
The month with the lowest relative humidity is November (46%).
Average rainfall
Arcadia, CA
- Average rainfall in January:
1.18" - Average rainfall in February:
1.46" - Average rainfall in March:
0.91" - Average rainfall in April:
0.59" - Average rainfall in May:
0.2" - Average rainfall in June:
0.04"
- Average rainfall in July:
0.28" - Average rainfall in August:
0.16" - Average rainfall in September:
0.16" - Average rainfall in October:
0.24" - Average rainfall in November:
0.75" - Average rainfall in December:
1.54"
The wettest month (with the highest rainfall) is December (1.54").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days
Arcadia, CA
- Average rainfall days in January:
5.3 days - Average rainfall days in February:
5.3 days - Average rainfall days in March:
6.5 days - Average rainfall days in April:
5.3 days - Average rainfall days in May:
3.4 days - Average rainfall days in June:
1.3 days
- Average rainfall days in July:
3.8 days - Average rainfall days in August:
2.6 days - Average rainfall days in September:
2.9 days - Average rainfall days in October:
2.8 days - Average rainfall days in November:
3.7 days - Average rainfall days in December:
5.8 days
The month with the highest number of rainy days is March (6.5 days).
The month with the least rainy days is June (1.3 days).
Average daylight / Average sunshine
Arcadia, 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:
6h and 54min - Average sunshine in February:
6h and 54min - Average sunshine in March:
8h and 54min - Average sunshine in April:
11h and 24min - Average sunshine in May:
11h and 42min - Average sunshine in June:
12h and 0min
- 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 42min - Average sunshine in November:
7h and 18min - Average sunshine in December:
6h and 54min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 54min).
Average sunshine days
Arcadia, CA
- Average sunshine days in January:
25.1 days - Average sunshine days in February:
22 days - Average sunshine days in March:
24.3 days - Average sunshine days in April:
24.2 days - Average sunshine days in May:
25.7 days - Average sunshine days in June:
27.7 days
- Average sunshine days in July:
24.8 days - Average sunshine days in August:
26.2 days - Average sunshine days in September:
25.2 days - Average sunshine days in October:
26.9 days - Average sunshine days in November:
25.6 days - Average sunshine days in December:
23.8 days
The month with the most sunshine days is June (27.7 days).
The month with the least sunshine days is February (22 days).
Average UV index
Arcadia, CA
The months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover
Arcadia, 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
Arcadia, 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).
