Climate and monthly weather forecastSouth Whittier, CA
Climate and monthly weather forecast
Weather in January
January, like December, in South Whittier, California, is another refreshing winter month, with an average temperature fluctuating between 66.9°F (19.4°C) and 50.7°F (10.4°C). With the advent of January, South Whittier's high-temperatures adjust to a still enjoyable 66.9°F (19.4°C), closely aligning with the preceding month. Weather in January »Weather in February
February, the last month of the winter in South Whittier, is also an enjoyable month, with an average temperature fluctuating between 66.7°F (19.3°C) and 49.8°F (9.9°C). The introduction of February sees an average high-temperature of a still comfortable 66.7°F (19.3°C), hardly deviating from January. Weather in February »Weather in March
March, the first month of the spring in South Whittier, is an agreeable month, with an average temperature varying between 69.3°F (20.7°C) and 51.4°F (10.8°C). The advent of March reveals an average high-temperature of an agreeable 69.3°F (20.7°C), showing minimal difference from the prior month. Weather in March »Weather in April
April, the same as March, in South Whittier, California, is an agreeable spring month, with an average temperature fluctuating between 54.1°F (12.3°C) and 72.3°F (22.4°C). With the advent of April, South Whittier's high-temperatures adjust to a still pleasant 72.3°F (22.4°C), closely aligning with the preceding month. Weather in April »Weather in May
The last month of the spring, May, is a warm month in South Whittier, California, with an average temperature varying between 74.3°F (23.5°C) and 56.5°F (13.6°C). Upon the onset of May, South Whittier witnesses an average high-temperature of a moderately hot 74.3°F (23.5°C), showing a close resemblance to the prior month. Weather in May »Weather in June
The first month of the summer, June, is still a warm month in South Whittier, California, with an average temperature fluctuating between 78.4°F (25.8°C) and 59.5°F (15.3°C). The introduction of June notes a subtle temperature variation to a still warm 78.4°F (25.8°C) from May's 74.3°F (23.5°C). Weather in June »Weather in July
July, like June, in South Whittier, California, is a moderately hot summer month, with an average temperature ranging between max 83.8°F (28.8°C) and min 64.2°F (17.9°C). As July arrives, a slight rise in the average high-temperature is observed, moving from a warm 78.4°F (25.8°C) in June to a still moderately hot 83.8°F (28.8°C). Weather in July »Weather in August
August, the last month of the summer in South Whittier, is another warm month, with an average temperature ranging between max 85.6°F (29.8°C) and min 65.8°F (18.8°C). August tends to be the warmest month, with temperatures averaging a daily high of 85.6°F (29.8°C) and a low of 65.8°F (18.8°C). The heat index value during August is calculated to be a hot 89.6°F (32°C). Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in South Whittier, California, with an average temperature varying between 84.2°F (29°C) and 65.1°F (18.4°C). With the arrival of September, South Whittier's average high-temperature registers at a still moderately hot 84.2°F (29°C), indicating a subtle variation from the previous month. Weather in September »Weather in October
October, the same as September, is a moderately hot autumn month in South Whittier, California, with an average temperature fluctuating between 78.8°F (26°C) and 61.3°F (16.3°C). South Whittier's progression into October involves a minor drop in the average high-temperature, slightly receding from a warm 84.2°F (29°C) in September to a still moderately hot 78.8°F (26°C). Weather in October »Weather in November
The last month of the autumn, November, is also an agreeable month in South Whittier, California, with an average temperature varying between 56.1°F (13.4°C) and 72.5°F (22.5°C). November's onset brings a negligible change in high-temperatures, falling from a moderately hot 78.8°F (26°C) in October to a pleasant 72.5°F (22.5°C). Weather in November »Weather in December
December, the first month of the winter in South Whittier, is also an enjoyable month, with temperature in the range of an average low of 50.2°F (10.1°C) and an average high of 64.8°F (18.2°C). In South Whittier, the lowest temperatures are generally noted in December, averaging a high of 64.8°F (18.2°C) and a low of 50.2°F (10.1°C). 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 27.3 rainfall days, and 1.97" (50mm) of precipitation is accumulated.
January, February and December, with an average of 6.8h of sunshine, are months with the least sunshine in South Whittier, California.
February, November and December, with an average maximum UV index of 4, are months with the lowest UV index in South Whittier, California.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in South Whittier, 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.
With an average relative humidity of 63%, June is the most humid month.
June is the only month when rain does not fall in South Whittier.
June has the longest days of the year, with an average of 14h and 24min of daylight.
January through May, July through December are months with rainfall in South Whittier.
July and August, with an average of 12h of sunshine, are months with the most sunshine in South Whittier.
South Whittier's warmest temperatures are experienced in August, with average high temperatures of 85.6°F (29.8°C) and lows of 65.8°F (18.8°C).
The month with the highest UV index in South Whittier is August, with an average maximum UV index of 7.
With an average relative humidity of 48%, November is the least humid month in South Whittier.
The coldest temperatures in South Whittier occur during December, when averages reach a peak of 64.8°F (18.2°C) and a low of 50.2°F (10.1°C).
The month with the most rainfall is December, when the rain falls for 4.1 days and typically aggregates up to 0.47" (12mm) of precipitation.
December has the shortest days of the year, with an average of 9h and 54min of daylight.
Average temperature
South Whittier, CA
The warmest month (with the highest average high temperature) is August (85.6°F).
The month with the lowest average high temperature is December (64.8°F).
The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is February (49.8°F).
Average pressure
South Whittier, 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:
29.97"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:
29.9"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
South Whittier, CA
- Average wind speed in January:
5.3mph - Average wind speed in February:
5.1mph - Average wind speed in March:
5.3mph - Average wind speed in April:
6mph - Average wind speed in May:
5.8mph - Average wind speed in June:
5.3mph
- Average wind speed in July:
5.1mph - Average wind speed in August:
4.8mph - Average wind speed in September:
4.7mph - Average wind speed in October:
4.7mph - Average wind speed in November:
5mph - Average wind speed in December:
5.2mph
The windiest month (with the highest average wind speed) is April (6mph).
The calmest months (with the lowest average wind speed) are September and October (4.7mph).
Average humidity
South Whittier, CA
The month with the highest relative humidity is June (63%).
The month with the lowest relative humidity is November (48%).
Average rainfall
South Whittier, CA
- Average rainfall in July:
0.04" - Average rainfall in August:
0.04" - Average rainfall in September:
0.04" - Average rainfall in October:
0.04" - Average rainfall in November:
0.24" - Average rainfall in December:
0.47"
The wettest month (with the highest rainfall) is December (0.47").
The driest month (with the least rainfall) is June (0").
Average rainfall days
South Whittier, CA
- Average rainfall days in January:
2.6 days - Average rainfall days in February:
3.5 days - Average rainfall days in March:
4.6 days - Average rainfall days in April:
3.5 days - Average rainfall days in May:
1.4 days - Average rainfall days in June:
0.5 days
- Average rainfall days in July:
1.5 days - Average rainfall days in August:
0.8 days - Average rainfall days in September:
1.3 days - Average rainfall days in October:
1.3 days - Average rainfall days in November:
2.2 days - Average rainfall days in December:
4.1 days
The month with the highest number of rainy days is March (4.6 days).
The month with the least rainy days is June (0.5 days).
Average daylight / Average sunshine
South Whittier, 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 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 48min - Average sunshine in February:
6h and 48min - Average sunshine in March:
8h and 48min - Average sunshine in April:
10h and 54min - Average sunshine in May:
11h and 12min - Average sunshine in June:
11h and 48min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
12h and 0min - Average sunshine in September:
10h and 36min - Average sunshine in October:
8h and 30min - Average sunshine in November:
7h and 12min - Average sunshine in December:
6h and 48min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 48min).
Average sunshine days
South Whittier, CA
- Average sunshine days in January:
27.5 days - Average sunshine days in February:
23.8 days - Average sunshine days in March:
25.9 days - Average sunshine days in April:
26.7 days - Average sunshine days in May:
29 days - Average sunshine days in June:
29.3 days
- Average sunshine days in July:
29 days - Average sunshine days in August:
28.7 days - Average sunshine days in September:
27.6 days - Average sunshine days in October:
28.8 days - Average sunshine days in November:
26.5 days - Average sunshine days in December:
25.5 days
The month with the most sunshine days is June (29.3 days).
The month with the least sunshine days is February (23.8 days).
Average UV index
South Whittier, CA
The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are February, November and December (UV index 4).
Average cloud cover
South Whittier, 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 6).
Average visibility
South Whittier, 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).
