Climate and monthly weather forecastAsti, CA
Climate and monthly weather forecast
Weather in January
January is a refreshing winter month in Asti, California, with an average temperature varying between 56.5°F (13.6°C) and 39.9°F (4.4°C). January's weather records an average high-temperature of a refreshing 56.5°F (13.6°C), showing little deviation from December. Weather in January »Weather in February
The last month of the winter, February, is also a moderate month in Asti, California, with an average temperature ranging between max 57.9°F (14.4°C) and min 39.7°F (4.3°C). With February's advent, Asti sees an average high-temperature of a still refreshing 57.9°F (14.4°C), subtly shifted from January's 56.5°F (13.6°C). Weather in February »Weather in March
March, the first month of the spring in Asti, is still a refreshing month, with an average temperature ranging between min 39.7°F (4.3°C) and max 59.2°F (15.1°C). The onset of March manifests an average high-temperature of a still refreshing 59.2°F (15.1°C), demonstrating a minor variation from the preceding month. Weather in March »Weather in April
April in Asti, California, is a refreshing spring month, with an average temperature fluctuating between 65.1°F (18.4°C) and 42.6°F (5.9°C). The start of April brings a subtle rise in the average high-temperature, moving from a moderate 59.2°F (15.1°C) in March to an enjoyable 65.1°F (18.4°C). Weather in April »Weather in May
May, the last month of the spring in Asti, is an agreeable month, with an average temperature fluctuating between 70.9°F (21.6°C) and 46°F (7.8°C). In May, the average high-temperature marginally rises from a refreshing 65.1°F (18.4°C) in April to a pleasant 70.9°F (21.6°C). Weather in May »Weather in June
June, the first month of the summer in Asti, is a warm month, with an average temperature varying between 51.4°F (10.8°C) and 79.9°F (26.6°C). In Asti, the average high-temperature in June rises, from an agreeable 70.9°F (21.6°C) in May, to a moderately hot 79.9°F (26.6°C). Weather in June »Weather in July
July in Asti, California, is a hot summer month, with an average temperature ranging between min 53.8°F (12.1°C) and max 86.2°F (30.1°C). Asti's July weather, marked by an average high temperature of 86.2°F (30.1°C) and an average low temperature of 53.8°F (12.1°C), is the warmest in the year. The heat index in July is evaluated at a hot 89.6°F (32°C). Weather in July »Weather in August
August, the last month of the summer in Asti, is another warm month, with temperature in the range of an average high of 85.8°F (29.9°C) and an average low of 54.1°F (12.3°C). Asti's weather in August, with an average high-temperature of a warm 85.8°F (29.9°C), subtly shifts from July's 86.2°F (30.1°C). Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Asti, California, with an average temperature ranging between max 82.4°F (28°C) and min 52.7°F (11.5°C). The commencement of September notes an average high-temperature of a still warm 82.4°F (28°C), exhibiting little difference from the previous month. Weather in September »Weather in October
October, the same as September, in Asti, California, is an agreeable autumn month, with an average temperature fluctuating between 48.7°F (9.3°C) and 73.2°F (22.9°C). The average high-temperature drops in October, from September's warm 82.4°F (28°C) to a pleasant 73.2°F (22.9°C). Weather in October »Weather in November
The last month of the autumn, November, is also an enjoyable month in Asti, California, with an average temperature ranging between max 62.6°F (17°C) and min 42.6°F (5.9°C). The start of November involves a temperature drop, moving from a pleasant 73.2°F (22.9°C) in October to a refreshing 62.6°F (17°C). Weather in November »Weather in December
December, the first month of the winter in Asti, is still a cool month, with temperature in the range of an average high of 54.9°F (12.7°C) and an average low of 38.5°F (3.6°C). December is the coldest month of the year, registering average temperatures as high as 54.9°F (12.7°C) and as low as 38.5°F (3.6°C). Weather in December »Updated: Aug 11, 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 82.4 rainfall days, and 20.75" (527mm) of precipitation is accumulated.
In Asti, snow does not fall in January, March through December.
Throughout the year, 0.16" (4mm) of snow is accumulated.
February is the month with the most rainfall. Rain falls for 9.5 days and accumulates 4.25" (108mm) of precipitation.
The only month with snowfall is February.
The month with the most snowfall is February, when snow falls for 0.2 days and typically aggregates up to 0.16" (4mm) of snow.
March is the most humid month, with an average relative humidity of 77%.
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 of 14h and 48min of daylight, June has the longest days of the year in Asti.
The months with the highest UV index are June through August, with an average maximum UV index of 6.
July brings the highest temperatures, with an average high of 86.2°F (30.1°C) and an average low of 53.8°F (12.1°C).
July and September, with an average relative humidity of 57%, are the least humid months.
The months with the least rainfall are July and August Rain falls for 1.2 days and accumulates 0.04" (1mm) of rain.
The month with the most sunshine is July, with an average of 12h of sunshine.
November is the month with the lowest UV index, with an average maximum UV index of 2.
During the coldest month in Asti, December, temperatures average a high of 54.9°F (12.7°C) and a low of 38.5°F (3.6°C).
December has the shortest days of the year, with an average of 9h and 30min of daylight.
With an average of 5.4h of sunshine, December has the least sunshine of the year.
Average temperature
Asti, CA
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is December (54.9°F).
The month with the highest average low temperature is August (54.1°F).
The coldest month (with the lowest average low temperature) is December (38.5°F).
Average pressure
Asti, 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:
29.97"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:
30.11"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
Asti, CA
- Average wind speed in January:
4.9mph - Average wind speed in February:
5.5mph - Average wind speed in March:
5.7mph - Average wind speed in April:
6.2mph - Average wind speed in May:
6.3mph - Average wind speed in June:
6.2mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
4.8mph - Average wind speed in September:
4.8mph - Average wind speed in October:
4.8mph - Average wind speed in November:
4.6mph - Average wind speed in December:
4.8mph
The windiest month (with the highest average wind speed) is May (6.3mph).
The calmest month (with the lowest average wind speed) is November (4.6mph).
Average humidity
Asti, CA
The month with the highest relative humidity is March (77%).
The months with the lowest relative humidity are July and September (57%).
Average rainfall
Asti, CA
- Average rainfall in January:
3.62" - Average rainfall in February:
4.25" - Average rainfall in March:
3.43" - Average rainfall in April:
1.1" - Average rainfall in May:
1.06" - Average rainfall in June:
0.2"
- Average rainfall in July:
0.04" - Average rainfall in August:
0.04" - Average rainfall in September:
0.16" - Average rainfall in October:
1.22" - Average rainfall in November:
1.97" - Average rainfall in December:
3.66"
The wettest month (with the highest rainfall) is February (4.25").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days
Asti, CA
- Average rainfall days in January:
11.2 days - Average rainfall days in February:
9.5 days - Average rainfall days in March:
14.6 days - Average rainfall days in April:
8.8 days - Average rainfall days in May:
5.5 days - Average rainfall days in June:
2.8 days
- Average rainfall days in July:
1.2 days - Average rainfall days in August:
1.2 days - Average rainfall days in September:
2.2 days - Average rainfall days in October:
5.5 days - Average rainfall days in November:
7.8 days - Average rainfall days in December:
12.1 days
The month with the highest number of rainy days is March (14.6 days).
The months with the least rainy days are July and August (1.2 days).
Average snowfall
Asti, CA
The month with the highest snowfall is February (0.16").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days
Asti, CA
- Average snowfall days in January:
0 days - Average snowfall days in February:
0.2 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 days
The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight / Average sunshine
Asti, CA
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 18min - Average daylight in June:
14h and 48min
- Average daylight in July:
14h and 36min - Average daylight in August:
13h and 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 6min - Average daylight in December:
9h and 30min
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 36min - Average sunshine in February:
5h and 54min - Average sunshine in March:
7h and 6min - Average sunshine in April:
9h and 48min - Average sunshine in May:
10h and 36min - Average sunshine in June:
11h and 36min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
11h and 54min - Average sunshine in September:
10h and 54min - Average sunshine in October:
6h and 54min - Average sunshine in November:
6h and 18min - Average sunshine in December:
5h and 24min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days
Asti, CA
- Average sunshine days in January:
18.9 days - Average sunshine days in February:
17.3 days - Average sunshine days in March:
15.2 days - Average sunshine days in April:
19.6 days - Average sunshine days in May:
23.8 days - Average sunshine days in June:
26.1 days
- Average sunshine days in July:
29.4 days - Average sunshine days in August:
29.3 days - Average sunshine days in September:
27.3 days - Average sunshine days in October:
24.5 days - Average sunshine days in November:
21.4 days - Average sunshine days in December:
18 days
The month with the most sunshine days is July (29.4 days).
The month with the least sunshine days is March (15.2 days).
Average UV index
Asti, CA
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is November (UV index 2).
Average cloud cover
Asti, CA
The month with the most cloud cover is March (Cloud cover 43).
The months with the least cloud cover are July and August (Cloud cover 6).
Average visibility
Asti, 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).
