Climate and monthly weather forecastSouth Pasadena, CA
Climate and monthly weather forecast
Weather in January
January, the same as December, is another enjoyable winter month in South Pasadena, California, with an average temperature varying between 48.7°F (9.3°C) and 64.9°F (18.3°C). The transition from December to January sees an average high-temperature of a still refreshing 64.9°F (18.3°C), indicating a minor variance from the prior month. Weather in January »Weather in February
February, the last month of the winter in South Pasadena, is another refreshing month, with temperature in the range of an average high of 64.9°F (18.3°C) and an average low of 47.8°F (8.8°C). South Pasadena observes an average high-temperature of a still enjoyable 64.9°F (18.3°C) in February, the same as January. Weather in February »Weather in March
March, the first month of the spring in South Pasadena, is an agreeable month, with temperature in the range of an average low of 49.1°F (9.5°C) and an average high of 68°F (20°C). As South Pasadena welcomes March, the average high-temperature is noted at a pleasant 68°F (20°C), closely aligning with the preceding month. Weather in March »Weather in April
April, the same as March, in South Pasadena, California, is an agreeable spring month, with an average temperature ranging between min 51.6°F (10.9°C) and max 72.1°F (22.3°C). The transition into April notes an average high-temperature of a still pleasant 72.1°F (22.3°C), revealing a mild distinction from the 68°F (20°C) in March. Weather in April »Weather in May
May, the last month of the spring in South Pasadena, is a moderately hot month, with an average temperature varying between 55°F (12.8°C) and 74.3°F (23.5°C). The advent of May brings an average high-temperature of a warm 74.3°F (23.5°C), almost identical to the preceding month. Weather in May »Weather in June
The first month of the summer, June, is still a warm month in South Pasadena, California, with an average temperature fluctuating between 58.6°F (14.8°C) and 79.7°F (26.5°C). June's arrival signals a subtle increase in average high-temperatures, moving from May's moderately hot 74.3°F (23.5°C) to a still warm 79.7°F (26.5°C). Weather in June »Weather in July
July, like June, in South Pasadena, California, is a moderately hot summer month, with an average temperature varying between 85.3°F (29.6°C) and 64.2°F (17.9°C). The arrival of July brings a soft temperature shift, with the average high-temperature nudging from a moderately hot 79.7°F (26.5°C) in June to a still warm 85.3°F (29.6°C). Weather in July »Weather in August
The last month of the summer, August, is a hot month in South Pasadena, California, with an average temperature ranging between max 86.7°F (30.4°C) and min 65.7°F (18.7°C). In South Pasadena, August is the month with the highest recorded average temperatures, measuring a high of 86.7°F (30.4°C) and a low of 65.7°F (18.7°C). The heat index in August is evaluated at a tropical 89.6°F (32°C). Weather in August »Weather in September
September, the first month of the autumn in South Pasadena, is still a warm month, with temperature in the range of an average high of 84.4°F (29.1°C) and an average low of 63.7°F (17.6°C). South Pasadena observes an average high-temperature of a moderately hot 84.4°F (29.1°C) in September, barely different from 86.7°F (30.4°C) in August. Weather in September »Weather in October
October, the same as September, is a moderately hot autumn month in South Pasadena, California, with an average temperature varying between 59.7°F (15.4°C) and 77.9°F (25.5°C). As South Pasadena enters October, the average high-temperature subtly lowers from the 84.4°F (29.1°C) of September to a still moderately hot 77.9°F (25.5°C). Weather in October »Weather in November
The last month of the autumn, November, is another pleasant month in South Pasadena, California, with an average temperature fluctuating between 70.7°F (21.5°C) and 53.2°F (11.8°C). In November, the average high-temperature marginally drops from a warm 77.9°F (25.5°C) in October to an agreeable 70.7°F (21.5°C). Weather in November »Weather in December
The first month of the winter, December, is still a comfortable month in South Pasadena, California, with temperature in the range of an average high of 63.1°F (17.3°C) and an average low of 47.8°F (8.8°C). South Pasadena's December weather reaches an average high of 63.1°F (17.3°C) and an average low of 47.8°F (8.8°C), making it the coldest month. Weather in December »Updated: Aug 12, 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 South Pasadena, during the entire year, the rain falls for 49.2 days and collects up to 8.23" (209mm) of precipitation.
January through November are months without snowfall.
In South Pasadena, during the entire year, snow falls for 0.1 days.
The months with the least sunshine are January, February and December, with an average of 6.9h of sunshine.
January, February, November and December, with an average maximum UV index of 4, are months with the lowest UV index.
The month with the most rainfall is February, when the rain falls for 6.3 days and typically aggregates up to 1.77" (45mm) of precipitation.
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 59%, June is the most humid month.
June is the month with the least rainfall. Rain falls for 1 days and accumulates 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 most sunshine in South Pasadena are June and July, with an average of 12.1h of sunshine.
June through September, with an average maximum UV index of 6, are months with the highest UV index.
South Pasadena's temperature records reveal August as the warmest month, marked by average highs of 86.7°F (30.4°C) and lows of 65.7°F (18.7°C).
The least humid month is November, with an average relative humidity of 47%.
December is the month when South Pasadena experiences its coldest temperatures, averaging a high of 63.1°F (17.3°C) and a low of 47.8°F (8.8°C).
December is the only month when snow falls.
December has the most snowfall days of the year. Snow falls for 0.1 days.
With an average of 9h and 54min of daylight, December has the shortest days of the year.
Average temperature
South Pasadena, CA
The warmest month (with the highest average high temperature) is August (86.7°F).
The month with the lowest average high temperature is December (63.1°F).
The month with the highest average low temperature is August (65.7°F).
The coldest months (with the lowest average low temperature) are February and December (47.8°F).
Average pressure
South Pasadena, 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:
29.89"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 (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed
South Pasadena, CA
- Average wind speed in January:
5.3mph - Average wind speed in February:
5mph - Average wind speed in March:
5.2mph - Average wind speed in April:
5.7mph - Average wind speed in May:
5.5mph - Average wind speed in June:
5.1mph
- Average wind speed in July:
4.8mph - Average wind speed in August:
4.5mph - Average wind speed in September:
4.4mph - Average wind speed in October:
4.5mph - Average wind speed in November:
4.9mph - Average wind speed in December:
5.2mph
The windiest month (with the highest average wind speed) is April (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).
Average humidity
South Pasadena, CA
The month with the highest relative humidity is June (59%).
The month with the lowest relative humidity is November (47%).
Average rainfall
South Pasadena, CA
- Average rainfall in January:
1.5" - Average rainfall in February:
1.77" - Average rainfall in March:
1.14" - Average rainfall in April:
0.55" - Average rainfall in May:
0.24" - Average rainfall in June:
0.04"
- Average rainfall in July:
0.12" - Average rainfall in August:
0.08" - Average rainfall in September:
0.12" - Average rainfall in October:
0.24" - Average rainfall in November:
0.79" - Average rainfall in December:
1.65"
The wettest month (with the highest rainfall) is February (1.77").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days
South Pasadena, CA
- Average rainfall days in January:
5.7 days - Average rainfall days in February:
6.3 days - Average rainfall days in March:
7.7 days - Average rainfall days in April:
5.2 days - Average rainfall days in May:
3.4 days - Average rainfall days in June:
1 days
- Average rainfall days in July:
2.6 days - Average rainfall days in August:
1.3 days - Average rainfall days in September:
2.2 days - Average rainfall days in October:
3.4 days - Average rainfall days in November:
4.4 days - Average rainfall days in December:
6 days
The month with the highest number of rainy days is March (7.7 days).
The month with the least rainy days is June (1 days).
Average snowfall days
South Pasadena, CA
- Average snowfall days in January:
0 days - Average snowfall days in February:
0 days - Average snowfall days in March:
0 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0.1 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
South Pasadena, 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 18min - Average sunshine in May:
11h and 42min - 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 48min - Average sunshine in October:
8h and 36min - Average sunshine in November:
7h and 18min - Average sunshine in December:
6h and 54min
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: 6h and 54min).
Average sunshine days
South Pasadena, CA
- Average sunshine days in January:
24.4 days - Average sunshine days in February:
21 days - Average sunshine days in March:
22.6 days - Average sunshine days in April:
23.4 days - Average sunshine days in May:
25.3 days - Average sunshine days in June:
28.2 days
- Average sunshine days in July:
26.6 days - Average sunshine days in August:
28.3 days - Average sunshine days in September:
26.1 days - Average sunshine days in October:
26.1 days - Average sunshine days in November:
24.5 days - Average sunshine days in December:
23.5 days
The month with the most sunshine days is August (28.3 days).
The month with the least sunshine days is February (21 days).
Average UV index
South Pasadena, 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
South Pasadena, 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 4).
Average visibility
South Pasadena, 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).
