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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in South Santa Rosa, California, is another mild winter month, with temperature in the range of an average low of 43.2°F (6.2°C) and an average high of 57°F (13.9°C). Welcoming January, South Santa Rosa notes an average high-temperature of a still moderate 57°F (13.9°C), nearly consistent with December's 55.6°F (13.1°C). Weather in January »
Weather in February
February, the last month of the winter in South Santa Rosa, is another refreshing month, with an average temperature fluctuating between 42.6°F (5.9°C) and 58.6°F (14.8°C). The advent of February brings an average high-temperature of a still refreshing 58.6°F (14.8°C), exhibiting minor difference from the previous month. Weather in February »
Weather in March
March, the first month of the spring in South Santa Rosa, is still a mild month, with an average temperature fluctuating between 44.1°F (6.7°C) and 60.4°F (15.8°C). The commencement of March records an average high-temperature of a still refreshing 60.4°F (15.8°C), barely varying from February's 58.6°F (14.8°C). Weather in March »
Weather in April
April in South Santa Rosa, California, is a comfortable spring month, with temperature in the range of an average high of 64.9°F (18.3°C) and an average low of 45.5°F (7.5°C). The transition into April is marked with an average high-temperature of a comfortable 64.9°F (18.3°C), showing an insignificant shift from March's 60.4°F (15.8°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in South Santa Rosa, California, with an average temperature ranging between min 48.6°F (9.2°C) and max 69.3°F (20.7°C). South Santa Rosa's average high-temperature marks a pleasant 69.3°F (20.7°C) with the advent of May, closely mirroring that of the preceding month. Weather in May »
Weather in June
June, the first month of the summer in South Santa Rosa, is a moderately hot month, with an average temperature varying between 52.9°F (11.6°C) and 76.5°F (24.7°C). The commencement of June sees a minor shift in the average high-temperature, moving from an agreeable 69.3°F (20.7°C) in May to a warm 76.5°F (24.7°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in South Santa Rosa, California, with an average temperature varying between 79.9°F (26.6°C) and 54.5°F (12.5°C). The height of temperatures is seen during July and August, averaging a high-temperature of 79.9°F (26.6°C). Weather in July »
Weather in August
August, the last month of the summer in South Santa Rosa, is another warm month, with an average temperature ranging between min 55°F (12.8°C) and max 79.9°F (26.6°C). The months of July and August see the peak of South Santa Rosa's temperatures, averaging a high of 79.9°F (26.6°C). Weather in August »
Weather in September
September, the first month of the autumn in South Santa Rosa, is still a warm month, with an average temperature varying between 79.3°F (26.3°C) and 55°F (12.8°C). Transitioning into September, South Santa Rosa experiences an average high-temperature of a still warm 79.3°F (26.3°C), marking a minor shift from the preceding month. Weather in September »
Weather in October
October, like September, is another pleasant autumn month in South Santa Rosa, California, with an average temperature varying between 51.8°F (11°C) and 72.3°F (22.4°C). The start of October involves a subtle temperature drop, shifting from a moderately hot 79.3°F (26.3°C) in September to a pleasant 72.3°F (22.4°C). Weather in October »
Weather in November
November, the last month of the autumn in South Santa Rosa, is also an enjoyable month, with an average temperature ranging between max 63.5°F (17.5°C) and min 46°F (7.8°C). The advent of November brings a slight shift in average high-temperature, moving from a pleasant 72.3°F (22.4°C) in October to a comfortable 63.5°F (17.5°C). Weather in November »
Weather in December
December, the first month of the winter in South Santa Rosa, is still a mild month, with an average temperature fluctuating between 42.4°F (5.8°C) and 55.6°F (13.1°C). December, known for its average high temperature of 55.6°F (13.1°C) and an average low temperature of 42.4°F (5.8°C), is the coldest month. Weather in December »
[Resources]Frequently asked questions
How much does it rain in South Santa Rosa?
In South Santa Rosa, during the entire year, the rain falls for 44.3 days and collects up to 3.78" (96mm) of precipitation.
What are the months with the lowest UV index in South Santa Rosa?
The months with the lowest UV index in South Santa Rosa, California, are January, February, November and December, with an average maximum UV index of 3.
What is the rainiest month in South Santa Rosa?
February is the month with the most rainfall in South Santa Rosa, California. Rain falls for 5.3 days and accumulates 0.91" (23mm) of precipitation.
What is the most humid month in South Santa Rosa?
The most humid month is March, with an average relative humidity of 77%.
When is Daylight Saving Time (DST) in South Santa Rosa?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in South Santa Rosa, 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.
What is the driest month in South Santa Rosa?
June through September are months with the least rain when the rain falls for 0.8 days and typically aggregates up to 0.04" (1mm) of rain.
When are the longest days in South Santa Rosa?
With an average of 14h and 48min of daylight, June has the longest days of the year in South Santa Rosa.
When is the highest UV index in South Santa Rosa?
June is the month with the highest UV index in South Santa Rosa, with an average maximum UV index of 6.
What is the hottest time of year in South Santa Rosa?
The warmest period is usually observed in July and August, with the average high-temperature peaking at 79.9°F (26.6°C).
What month has the most sunshine in South Santa Rosa?
With an average of 11.9h of sunshine, July has the most sunshine of the year in South Santa Rosa.
What is the least humid month in South Santa Rosa?
With an average relative humidity of 62%, September is the least humid month in South Santa Rosa.
What is the coldest time of year in South Santa Rosa?
December, on average, is the coldest month in South Santa Rosa, California, registering a high temperature of 55.6°F (13.1°C) and a low of 42.4°F (5.8°C).
What is the month with the shortest days in South Santa Rosa?
December has the shortest days of the year, with an average of 9h and 30min of daylight.
What is the month with the least sunshine in South Santa Rosa?
December has the least sunshine of the year, with an average of 5.7h of sunshine.
Average temperature
South Santa Rosa, CA
The warmest months (with the highest average high temperature) are July and August (79.9°F).
The month with the lowest average high temperature is December (55.6°F).
The months with the highest average low temperature are August and September (55°F).
The coldest month (with the lowest average low temperature) is December (42.4°F).
Average pressure
South Santa Rosa, CA
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
30.03"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.92"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed
South Santa Rosa, CA
- Average wind speed in January:
5.1mph - Average wind speed in February:
5.8mph - Average wind speed in March:
6.2mph - Average wind speed in April:
6.7mph - Average wind speed in May:
6.8mph - Average wind speed in June:
6.4mph
- Average wind speed in July:
5.4mph - Average wind speed in August:
5.1mph - Average wind speed in September:
5mph - Average wind speed in October:
4.9mph - Average wind speed in November:
4.7mph - Average wind speed in December:
5.2mph
The windiest month (with the highest average wind speed) is May (6.8mph).
The calmest month (with the lowest average wind speed) is November (4.7mph).
Average humidity
South Santa Rosa, CA
The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is September (62%).
Average rainfall
South Santa Rosa, CA
- Average rainfall in January:
0.51" - Average rainfall in February:
0.91" - Average rainfall in March:
0.55" - Average rainfall in April:
0.16" - Average rainfall in May:
0.24" - Average rainfall in June:
0.04"
- Average rainfall in July:
0.04" - Average rainfall in August:
0.04" - Average rainfall in September:
0.04" - Average rainfall in October:
0.16" - Average rainfall in November:
0.43" - Average rainfall in December:
0.67"
The wettest month (with the highest rainfall) is February (0.91").
The driest months (with the least rainfall) are June, July, August and September (0.04").
Average rainfall days
South Santa Rosa, CA
- Average rainfall days in January:
5.6 days - Average rainfall days in February:
5.3 days - Average rainfall days in March:
8.7 days - Average rainfall days in April:
4.8 days - Average rainfall days in May:
2.9 days - Average rainfall days in June:
0.8 days
- Average rainfall days in July:
1 days - Average rainfall days in August:
0.5 days - Average rainfall days in September:
1.7 days - Average rainfall days in October:
2.5 days - Average rainfall days in November:
4.1 days - Average rainfall days in December:
6.4 days
The month with the highest number of rainy days is March (8.7 days).
The month with the least rainy days is August (0.5 days).
Average daylight / Average sunshine
South Santa Rosa, CA
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 3min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
5h and 5min - Average sunshine in February:
6h and 1min - Average sunshine in March:
7h and 3min - Average sunshine in April:
10h and 1min - Average sunshine in May:
10h and 4min - Average sunshine in June:
11h and 4min
- Average sunshine in July:
11h and 5min - Average sunshine in August:
11h and 5min - Average sunshine in September:
11h and 0min - Average sunshine in October:
7h and 0min - Average sunshine in November:
6h and 3min - Average sunshine in December:
5h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days
South Santa Rosa, CA
- Average sunshine days in January:
23.8 days - Average sunshine days in February:
21.2 days - Average sunshine days in March:
20.8 days - Average sunshine days in April:
24 days - Average sunshine days in May:
26.6 days - Average sunshine days in June:
27.7 days
- Average sunshine days in July:
27.6 days - Average sunshine days in August:
27.1 days - Average sunshine days in September:
27.5 days - Average sunshine days in October:
26.8 days - Average sunshine days in November:
23.8 days - Average sunshine days in December:
22.5 days
The month with the most sunshine days is June (27.7 days).
The month with the least sunshine days is March (20.8 days).
Average UV index
South Santa Rosa, CA
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover
South Santa Rosa, CA
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility
South Santa Rosa, 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).
South Santa Rosa, California, USA
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