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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
A colorful sunset sky over the hilly region of Gilroy in California
Weather in January
January, the same as December, in Gilroy, California, is another mild winter month, with an average temperature fluctuating between 41.4°F (5.2°C) and 59.5°F (15.3°C). Gilroy, California, commences January with an average high-temperature of a still refreshing 59.5°F (15.3°C), maintaining a close resemblance to the previous month. Weather in January »
Weather in February
The last month of the winter, February, is a refreshing month in Gilroy, California, with temperature in the range of an average high of 60.8°F (16°C) and an average low of 40.6°F (4.8°C). Entering February, Gilroy's average high-temperature reads an enjoyable 60.8°F (16°C), indicating a close resemblance to the previous month's climate. Weather in February »
Weather in March
March, the first month of the spring in Gilroy, is also an enjoyable month, with an average temperature ranging between min 40.6°F (4.8°C) and max 63.3°F (17.4°C). Gilroy records a slight change with March's average high-temperatures adjusting to a still refreshing 63.3°F (17.4°C) from February's 60.8°F (16°C). Weather in March »
Weather in April
April is an agreeable spring month in Gilroy, California, with temperature in the range of an average low of 42.4°F (5.8°C) and an average high of 68.2°F (20.1°C). Transitioning into April, Gilroy records an average high-temperature of an agreeable 68.2°F (20.1°C), almost identical to March's 63.3°F (17.4°C). Weather in April »
Weather in May
The last month of the spring, May, is another pleasant month in Gilroy, California, with an average temperature fluctuating between 46°F (7.8°C) and 72.5°F (22.5°C). As May takes hold, the average high-temperature is a still pleasant 72.5°F (22.5°C), nearly mirroring that of the previous month. Weather in May »
Weather in June
June, the first month of the summer in Gilroy, is a moderately hot month, with an average temperature ranging between max 80.8°F (27.1°C) and min 50.9°F (10.5°C). Gilroy's weather shows a minor temperature rise with the arrival of June, moving from a pleasant 72.5°F (22.5°C) in May to a moderately hot 80.8°F (27.1°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Gilroy, California, with an average temperature ranging between min 54°F (12.2°C) and max 84.9°F (29.4°C). Gilroy experiences a subtle adjustment in high-temperatures to a still moderately hot 84.9°F (29.4°C) with the onset of July, maintaining near parity with June's 80.8°F (27.1°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Gilroy, California, with temperature in the range of an average high of 85.1°F (29.5°C) and an average low of 54.1°F (12.3°C). Gilroy notes the warmest temperatures in August, with a high average of 85.1°F (29.5°C) and a low of 54.1°F (12.3°C). The heat index value for August is computed to be a tropical 89.6°F (32°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Gilroy, California, with an average temperature varying between 83.3°F (28.5°C) and 54.1°F (12.3°C). September's climate shows a minor adjustment in average high-temperatures to a still warm 83.3°F (28.5°C) from August's 85.1°F (29.5°C). Weather in September »
Weather in October
October, the same as September, is a moderately hot autumn month in Gilroy, California, with an average temperature fluctuating between 51.1°F (10.6°C) and 75.6°F (24.2°C). Gilroy's October weather shows a modest shift in high-temperatures, falling from September's moderately hot 83.3°F (28.5°C) to a still warm 75.6°F (24.2°C). Weather in October »
Weather in November
November, the last month of the autumn in Gilroy, is also an enjoyable month, with an average temperature varying between 44.8°F (7.1°C) and 65.8°F (18.8°C). November comes with a decrease in the average high-temperature, falling from a warm 75.6°F (24.2°C) in October to an enjoyable 65.8°F (18.8°C). Weather in November »
Weather in December
The first month of the winter, December, is also a moderate month in Gilroy, California, with an average temperature fluctuating between 57.6°F (14.2°C) and 41.2°F (5.1°C). December stands out as Gilroy's coldest month, with an average high-temperature of 57.6°F (14.2°C) and a low-temperature of 41.2°F (5.1°C). Weather in December »
[Resources]Frequently asked questions
How much does it rain in Gilroy?
Throughout the year, there are 43.4 rainfall days, and 3.66" (93mm) of precipitation is accumulated.
What is the month with the lowest UV index in Gilroy?
The months with the lowest UV index in Gilroy, California, are January, February, November and December, with an average maximum UV index of 3.
What is the most humid month in Gilroy?
With an average relative humidity of 74%, March is the most humid month in Gilroy, California.
When is Daylight Saving Time (DST) in Gilroy?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Gilroy, California, 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 Gilroy?
In Gilroy, California, rain does not fall in June through August.
When are the longest days in Gilroy?
June has the longest days of the year in Gilroy, with an average of 14h and 42min of daylight.
When is the highest UV index in Gilroy?
The months with the highest UV index are June through August, with an average maximum UV index of 6.
What month has the most sunshine in Gilroy?
The month with the most sunshine in Gilroy, California, is July, with an average of 12.1h of sunshine.
What is the warmest month in Gilroy?
The month of August, characterized by an average high of 85.1°F (29.5°C) and a low of 54.1°F (12.3°C), is recognized as the warmest in Gilroy, California.
What is the least humid month in Gilroy?
September is the least humid month, with an average relative humidity of 57%.
When does it rain in Gilroy?
January through May, September through December are months with rainfall in Gilroy, California.
What time of the year is the coldest in Gilroy?
The lowest temperatures are recorded in December, with averages reaching a high of 57.6°F (14.2°C) and a low of 41.2°F (5.1°C).
What is the wettest month in Gilroy?
The month with the most rainfall in Gilroy, California, is December, when the rain falls for 6.6 days and typically aggregates up to 0.83" (21mm) of precipitation.
What is the month with the shortest days in Gilroy?
With an average of 9h and 42min of daylight, December has the shortest days of the year in Gilroy.
What is the month with the least sunshine in Gilroy?
December has the least sunshine of the year, with an average of 6h of sunshine.
Average temperature
Gilroy, CA
The warmest month (with the highest average high temperature) is August (85.1°F).
The month with the lowest average high temperature is December (57.6°F).
The months with the highest average low temperature are August and September (54.1°F).
The coldest months (with the lowest average low temperature) are February and March (40.6°F).
Average pressure
Gilroy, CA
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.08"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 (30.14"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed
Gilroy, CA
- Average wind speed in January:
4mph - Average wind speed in February:
4.4mph - Average wind speed in March:
4.7mph - Average wind speed in April:
5mph - Average wind speed in May:
5.3mph - Average wind speed in June:
5.2mph
- Average wind speed in July:
4.7mph - Average wind speed in August:
4.3mph - Average wind speed in September:
4.2mph - Average wind speed in October:
4mph - Average wind speed in November:
3.9mph - Average wind speed in December:
4.1mph
The windiest month (with the highest average wind speed) is May (5.3mph).
The calmest month (with the lowest average wind speed) is November (3.9mph).
Average humidity
Gilroy, CA
The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is September (57%).
Average rainfall
Gilroy, CA
- Average rainfall in January:
0.55" - Average rainfall in February:
0.67" - Average rainfall in March:
0.59" - Average rainfall in April:
0.35" - Average rainfall in May:
0.12" - Average rainfall in June:
0"
The wettest month (with the highest rainfall) is December (0.83").
The driest months (with the least rainfall) are June, July and August (0").
Average rainfall days
Gilroy, CA
- Average rainfall days in January:
5.5 days - Average rainfall days in February:
5.4 days - Average rainfall days in March:
8.3 days - Average rainfall days in April:
5.2 days - Average rainfall days in May:
2.4 days - Average rainfall days in June:
0.8 days
- Average rainfall days in July:
1.1 days - Average rainfall days in August:
0.6 days - Average rainfall days in September:
1.7 days - Average rainfall days in October:
2 days - Average rainfall days in November:
3.8 days - Average rainfall days in December:
6.6 days
The month with the highest number of rainy days is March (8.3 days).
The month with the least rainy days is August (0.6 days).
Average daylight / Average sunshine
Gilroy, CA
- Average daylight in January:
10h and 0min - 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 1min - Average daylight in June:
14h and 4min
- Average daylight in July:
14h and 2min - Average daylight in August:
13h and 3min - 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 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January:
6h and 2min - Average sunshine in February:
6h and 2min - Average sunshine in March:
8h and 2min - Average sunshine in April:
10h and 2min - Average sunshine in May:
11h and 1min - Average sunshine in June:
11h and 5min
- Average sunshine in July:
12h and 1min - Average sunshine in August:
12h and 0min - Average sunshine in September:
11h and 2min - Average sunshine in October:
7h and 1min - Average sunshine in November:
6h and 4min - Average sunshine in December:
6h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days
Gilroy, CA
- Average sunshine days in January:
24.2 days - Average sunshine days in February:
21.5 days - Average sunshine days in March:
21.4 days - Average sunshine days in April:
24 days - Average sunshine days in May:
27.7 days - Average sunshine days in June:
28.7 days
- Average sunshine days in July:
29.9 days - Average sunshine days in August:
29.7 days - Average sunshine days in September:
27.7 days - Average sunshine days in October:
28.3 days - Average sunshine days in November:
24.9 days - Average sunshine days in December:
23.2 days
The month with the most sunshine days is July (29.9 days).
The month with the least sunshine days is March (21.4 days).
Average UV index
Gilroy, CA
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover
Gilroy, CA
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 7).
Average visibility
Gilroy, 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).
Gilroy, California, USA
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