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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 Graton, California, is another mild winter month, with an average temperature fluctuating between 57.2°F (14°C) and 43.2°F (6.2°C). Graton experiences a minor change to a still refreshing 57.2°F (14°C) in average high-temperature during January, closely reflecting December. Weather in January »
Weather in February
The last month of the winter, February, is also a moderate month in Graton, California, with temperature in the range of an average low of 42.8°F (6°C) and an average high of 58.8°F (14.9°C). The introduction of February notes a subtle temperature variation to a still mild 58.8°F (14.9°C) from January's 57.2°F (14°C). Weather in February »
Weather in March
March, the first month of the spring in Graton, is still a mild month, with an average temperature fluctuating between 43.5°F (6.4°C) and 60.4°F (15.8°C). The weather during March records an average high-temperature of a still refreshing 60.4°F (15.8°C), closely mirroring the preceding month. Weather in March »
Weather in April
April is an enjoyable spring month in Graton, California, with an average temperature fluctuating between 64.9°F (18.3°C) and 45.5°F (7.5°C). April's average high-temperature stands at an enjoyable 64.9°F (18.3°C), showing little deviation from March's 60.4°F (15.8°C). Weather in April »
Weather in May
May, the last month of the spring in Graton, is a pleasant month, with temperature in the range of an average high of 69.1°F (20.6°C) and an average low of 48.6°F (9.2°C). Graton experiences an average high-temperature of a pleasant 69.1°F (20.6°C) with the onset of May, subtly varied from April's 64.9°F (18.3°C). Weather in May »
Weather in June
June, the first month of the summer in Graton, is a warm month, with an average temperature ranging between max 76.3°F (24.6°C) and min 53.1°F (11.7°C). The arrival of June introduces a minor uplift in high-temperatures, adjusting from an agreeable 69.1°F (20.6°C) in May to a moderately hot 76.3°F (24.6°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Graton, California, with temperature in the range of an average low of 54.1°F (12.3°C) and an average high of 79.3°F (26.3°C). The transition into July is marked with an average high-temperature of a still warm 79.3°F (26.3°C), showing an insignificant shift from June's 76.3°F (24.6°C). Weather in July »
Weather in August
August, the last month of the summer in Graton, is also a moderately hot month, with an average temperature ranging between min 54.7°F (12.6°C) and max 79.7°F (26.5°C). In Graton, August is the month with the highest recorded average temperatures, measuring a high of 79.7°F (26.5°C) and a low of 54.7°F (12.6°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Graton, California, with temperature in the range of an average high of 79°F (26.1°C) and an average low of 54.7°F (12.6°C). The onset of September manifests an average high-temperature of a still moderately hot 79°F (26.1°C), demonstrating a minor variation from the preceding month. Weather in September »
Weather in October
October, like September, is an agreeable autumn month in Graton, California, with an average temperature fluctuating between 72.3°F (22.4°C) and 51.8°F (11°C). As September transitions into October, Graton sees a gentle drop in the average high-temperature, transitioning from a moderately hot 79°F (26.1°C) to a pleasant 72.3°F (22.4°C). Weather in October »
Weather in November
The last month of the autumn, November, is also an enjoyable month in Graton, California, with temperature in the range of an average high of 63.1°F (17.3°C) and an average low of 46°F (7.8°C). The arrival of November corresponds with a reduction in the average high-temperature, down from October's agreeable 72.3°F (22.4°C) to a comfortable 63.1°F (17.3°C). Weather in November »
Weather in December
December, the first month of the winter in Graton, is still a mild month, with an average temperature ranging between max 55.6°F (13.1°C) and min 41.9°F (5.5°C). In Graton, the lowest average temperatures are observed in December, with a high of 55.6°F (13.1°C) and a low of 41.9°F (5.5°C). Weather in December »
Updated: Jul 20, 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
How many days does it rain in Graton?
In Graton, during the entire year, the rain falls for 72.8 days and collects up to 12.01" (305mm) of precipitation.
When is the lowest UV index?
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index.
What is the rainiest month?
The month with the most rainfall is February, when the rain falls for 9.1 days and typically aggregates up to 2.64" (67mm) of precipitation.
What is the most humid month?
March is the most humid month, with an average relative humidity of 77%.
When is Daylight Saving Time (DST)?
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.
When are the longest days?
June has the longest days of the year in Graton, with an average of 14h and 48min of daylight.
When is the highest UV index in Graton?
June is the month with the highest UV index, with an average maximum UV index of 6.
What is the driest month?
July and August are months with the least rain when the rain falls for 1.5 days and typically aggregates up to 0.04" (1mm) of rain.
What month has the most sunshine?
July has the most sunshine of the year, with an average of 11.9h of sunshine.
What are the warmest months in Graton?
August, noted for its average high-temperature of 79.7°F (26.5°C) and an average low-temperature of 54.7°F (12.6°C), is considered the warmest month.
What is the least humid month in Graton?
The least humid month is September, with an average relative humidity of 63%.
What month is the coldest in Graton?
In Graton, California, the average lowest temperatures are observed in December, with a high of 55.6°F (13.1°C) and a low of 41.9°F (5.5°C).
What is the month with the shortest days?
With an average of 9h and 30min of daylight, December has the shortest days of the year.
What is the month with the least sunshine in Graton?
December has the least sunshine of the year, with an average of 5.7h of sunshine.
Average temperature
Graton, CA
The warmest month (with the highest average high temperature) is August (79.7°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 (54.7°F).
The coldest month (with the lowest average low temperature) is December (41.9°F).
Average pressure
Graton, CA
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.06"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:
29.99"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.1"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
Graton, CA
- Average wind speed in January:
5.2mph - Average wind speed in February:
6mph - Average wind speed in March:
6.5mph - Average wind speed in April:
7mph - Average wind speed in May:
7.1mph - Average wind speed in June:
6.8mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.2mph - Average wind speed in September:
5.2mph - Average wind speed in October:
5.1mph - Average wind speed in November:
4.9mph - Average wind speed in December:
5.2mph
The windiest month (with the highest average wind speed) is May (7.1mph).
The calmest month (with the lowest average wind speed) is November (4.9mph).
Average humidity
Graton, CA
The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is September (63%).
Average rainfall
Graton, CA
- Average rainfall in January:
2.01" - Average rainfall in February:
2.64" - Average rainfall in March:
2.01" - Average rainfall in April:
0.55" - Average rainfall in May:
0.55" - Average rainfall in June:
0.12"
- Average rainfall in July:
0.04" - Average rainfall in August:
0.04" - Average rainfall in September:
0.12" - Average rainfall in October:
0.67" - Average rainfall in November:
1.02" - Average rainfall in December:
2.24"
The wettest month (with the highest rainfall) is February (2.64").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days
Graton, CA
- Average rainfall days in January:
10 days - Average rainfall days in February:
9.1 days - Average rainfall days in March:
12.6 days - Average rainfall days in April:
7 days - Average rainfall days in May:
5.3 days - Average rainfall days in June:
1.9 days
- Average rainfall days in July:
1.5 days - Average rainfall days in August:
0.8 days - Average rainfall days in September:
2.8 days - Average rainfall days in October:
4.8 days - Average rainfall days in November:
6.5 days - Average rainfall days in December:
10.5 days
The month with the highest number of rainy days is March (12.6 days).
The month with the least rainy days is August (0.8 days).
Average daylight / Average sunshine
Graton, 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 3min - 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:
6h and 5min - 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
Graton, CA
- Average sunshine days in January:
19.9 days - Average sunshine days in February:
18.1 days - Average sunshine days in March:
17.1 days - Average sunshine days in April:
21.8 days - Average sunshine days in May:
23.4 days - Average sunshine days in June:
26.5 days
- Average sunshine days in July:
27.2 days - Average sunshine days in August:
27.1 days - Average sunshine days in September:
26.5 days - Average sunshine days in October:
24.8 days - Average sunshine days in November:
21.9 days - Average sunshine days in December:
19.5 days
The month with the most sunshine days is July (27.2 days).
The month with the least sunshine days is March (17.1 days).
Average UV index
Graton, 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
Graton, CA
The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility
Graton, 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).
Graton, California, USA
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