Climate and monthly weather forecastSouth San Gabriel, CA
Climate and monthly weather forecast
Weather in January
January, like December, in South San Gabriel, California, is another comfortable winter month, with temperature in the range of an average high of 65.7°F (18.7°C) and an average low of 48.6°F (9.2°C). With the onset of January, the average high-temperature stands at a still enjoyable 65.7°F (18.7°C), closely aligned with December's 63.5°F (17.5°C). Weather in January »Weather in February
The last month of the winter, February, is another refreshing month in South San Gabriel, California, with an average temperature varying between 47.7°F (8.7°C) and 65.3°F (18.5°C). The dawn of February sees an average high-temperature of a still comfortable 65.3°F (18.5°C), subtly contrasting with January's 65.7°F (18.7°C). Weather in February »Weather in March
March, the first month of the spring in South San Gabriel, is a pleasant month, with an average temperature ranging between max 68.7°F (20.4°C) and min 48.9°F (9.4°C). South San Gabriel's March reports an average high-temperature of a pleasant 68.7°F (20.4°C), exhibiting a minor difference from February. Weather in March »Weather in April
April, the same as March, in South San Gabriel, California, is another pleasant spring month, with temperature in the range of an average low of 51.8°F (11°C) and an average high of 72.3°F (22.4°C). The shift into April records an average high-temperature of a still agreeable 72.3°F (22.4°C), subtly varied from March's 68.7°F (20.4°C). Weather in April »Weather in May
May, the last month of the spring in South San Gabriel, is a warm month, with temperature in the range of an average low of 54.7°F (12.6°C) and an average high of 75°F (23.9°C). South San Gabriel's average high-temperature in May is a warm 75°F (23.9°C), marking an insignificant difference from the 72.3°F (22.4°C) of April. Weather in May »Weather in June
June, the first month of the summer in South San Gabriel, is also a moderately hot month, with temperature in the range of an average high of 80.4°F (26.9°C) and an average low of 57.9°F (14.4°C). A minor escalation in the average high-temperature is seen with the onset of June, moving from 75°F (23.9°C) in May to a still warm 80.4°F (26.9°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in South San Gabriel, California, with an average temperature ranging between min 63.3°F (17.4°C) and max 85.6°F (29.8°C). As South San Gabriel transitions into July, the average high-temperature stands at a still warm 85.6°F (29.8°C), offering little variation from the preceding month. Weather in July »Weather in August
The last month of the summer, August, is a hot month in South San Gabriel, California, with temperature in the range of an average high of 87.4°F (30.8°C) and an average low of 64.9°F (18.3°C). South San Gabriel's warmest month, August, generally records average temperatures ranging from a high of 87.4°F (30.8°C) to a low of 64.9°F (18.3°C). August's mean heat index is calculated to be a tropical 89.6°F (32°C). Weather in August »Weather in September
September, the first month of the autumn in South San Gabriel, is also a moderately hot month, with an average temperature fluctuating between 63.5°F (17.5°C) and 85.5°F (29.7°C). As August transitions into September, the average high-temperature rests at a moderately hot 85.5°F (29.7°C), maintaining a close resemblance to the previous month. Weather in September »Weather in October
October, the same as September, is a moderately hot autumn month in South San Gabriel, California, with an average temperature ranging between min 59.4°F (15.2°C) and max 79°F (26.1°C). In South San Gabriel, the average high-temperature in October slightly decreases from 85.5°F (29.7°C) in September to a still moderately hot 79°F (26.1°C). Weather in October »Weather in November
November, the last month of the autumn in South San Gabriel, is also an agreeable month, with an average temperature fluctuating between 71.4°F (21.9°C) and 54°F (12.2°C). South San Gabriel's transition into November involves a gentle shift in temperature, receding from a warm 79°F (26.1°C) in October to a pleasant 71.4°F (21.9°C). Weather in November »Weather in December
December, the first month of the winter in South San Gabriel, is still a comfortable month, with an average temperature ranging between min 47.5°F (8.6°C) and max 63.5°F (17.5°C). The coldest time of the year is December, with temperatures averaging a high of 63.5°F (17.5°C) and a low of 47.5°F (8.6°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 43 rainfall days, and 6.06" (154mm) of precipitation is accumulated.
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 in South San Gabriel.
February is the month with the most rainfall in South San Gabriel. Rain falls for 5.2 days and accumulates 1.3" (33mm) 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.
June is the most humid month in South San Gabriel, California, with an average relative humidity of 59%.
June is the month with the least rainfall. Rain falls for 1.2 days and accumulates 0.04" (1mm) of precipitation.
The month with the longest days in South San Gabriel, California, is June, 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.
With an average of 12.1h of sunshine, July has the most sunshine of the year in South San Gabriel, California.
The warmest period tends to be August, when average temperatures fluctuate between a high of 87.4°F (30.8°C) and a low of 64.9°F (18.3°C).
November is the least humid month, with an average relative humidity of 47%.
The coldest period is December, when temperatures fluctuate between an average high of 63.5°F (17.5°C) and a low of 47.5°F (8.6°C).
The month with the shortest days in South San Gabriel, California, is December, with an average of 9h and 54min of daylight.
Average temperature
South San Gabriel, CA
The warmest month (with the highest average high temperature) is August (87.4°F).
The month with the lowest average high temperature is December (63.5°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 (47.5°F).
Average pressure
South San Gabriel, 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:
30.08"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 San Gabriel, 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:
5.8mph - Average wind speed in May:
5.6mph - Average wind speed in June:
5.2mph
- Average wind speed in July:
4.9mph - Average wind speed in August:
4.6mph - Average wind speed in September:
4.5mph - 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 (5.8mph).
The calmest months (with the lowest average wind speed) are September and October (4.5mph).
Average humidity
South San Gabriel, CA
The month with the highest relative humidity is June (59%).
The month with the lowest relative humidity is November (47%).
Average rainfall
South San Gabriel, CA
- Average rainfall in January:
1.1" - Average rainfall in February:
1.3" - Average rainfall in March:
0.75" - Average rainfall in April:
0.39" - Average rainfall in May:
0.16" - Average rainfall in June:
0.04"
- Average rainfall in July:
0.16" - Average rainfall in August:
0.08" - Average rainfall in September:
0.12" - Average rainfall in October:
0.16" - Average rainfall in November:
0.59" - Average rainfall in December:
1.22"
The wettest month (with the highest rainfall) is February (1.3").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days
South San Gabriel, CA
- Average rainfall days in January:
4.4 days - Average rainfall days in February:
5.2 days - Average rainfall days in March:
5.5 days - Average rainfall days in April:
4.8 days - Average rainfall days in May:
3.7 days - Average rainfall days in June:
1.2 days
- Average rainfall days in July:
3.1 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:
3.4 days - Average rainfall days in December:
4.8 days
The month with the highest number of rainy days is March (5.5 days).
The month with the least rainy days is June (1.2 days).
Average daylight / Average sunshine
South San Gabriel, 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 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 36min - 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 36min - 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
South San Gabriel, CA
- Average sunshine days in January:
25.6 days - Average sunshine days in February:
22.2 days - Average sunshine days in March:
25.5 days - Average sunshine days in April:
24.9 days - Average sunshine days in May:
25.7 days - Average sunshine days in June:
27.5 days
- Average sunshine days in July:
25.3 days - Average sunshine days in August:
27 days - Average sunshine days in September:
25.3 days - Average sunshine days in October:
26.7 days - Average sunshine days in November:
25.8 days - Average sunshine days in December:
25.3 days
The month with the most sunshine days is June (27.5 days).
The month with the least sunshine days is February (22.2 days).
Average UV index
South San Gabriel, 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 San Gabriel, CA
The month with the most cloud cover is December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility
South San Gabriel, 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).
