Climate and monthly weather forecast
Weather in January
January is a moderate winter month inPleasanton,California, with an average temperature fluctuating between 57°F (13.9°C) and 41.5°F (5.3°C). January denotes a minimal variation in the average high-temperature to a refreshing 57°F (13.9°C) fromDecember's 55°F (12.8°C).Weather in January »
Weather in February
February, the last month of the winter inPleasanton, is another mild month, with an average temperature fluctuating between 42.3°F (5.7°C) and 59.4°F (15.2°C). A minimal variation is noted in Pleasanton's average high-temperature at the onset of February, reaching a still mild 59.4°F (15.2°C) fromJanuary's 57°F (13.9°C).Weather in February »
Weather in March
The first month of the spring,March, is an enjoyable month inPleasanton,California, with an average temperature ranging between min 43.3°F (6.3°C) and max 62.2°F (16.8°C). Transitioning fromFebruary to March, Pleasanton observes an average high-temperature of an enjoyable 62.2°F (16.8°C), differing subtly from the previous month.Weather in March »
Weather in April
April, likeMarch, inPleasanton,California, is another refreshing spring month, with temperature in the range of an average high of 67.5°F (19.7°C) and an average low of 45.1°F (7.3°C). The commencement of April brings an average high-temperature of a still comfortable 67.5°F (19.7°C), marking an inconsequential divergence from March.Weather in April »
Weather in May
The last month of the spring,May, is an agreeable month inPleasanton,California, with an average temperature fluctuating between 48.9°F (9.4°C) and 72.7°F (22.6°C). May's climate shows a minor adjustment in average high-temperatures to a pleasant 72.7°F (22.6°C) fromApril's 67.5°F (19.7°C).Weather in May »
Weather in June
The first month of the summer,June, is a moderately hot month inPleasanton,California, with an average temperature fluctuating between 80.8°F (27.1°C) and 53.8°F (12.1°C). The shift fromMay to June is marked by a slight increase in the average high-temperature, moving from an agreeable 72.7°F (22.6°C) to a moderately hot 80.8°F (27.1°C).Weather in June »
Weather in July
July, the same asJune, is another warm summer month inPleasanton,California, with an average temperature varying between 85.3°F (29.6°C) and 55.9°F (13.3°C). July is the warmest month, exhibiting average temperatures of 85.3°F (29.6°C) at the peak and 55.9°F (13.3°C) at the base. July's heat index is evaluated at a hot 87.8°F (31°C).Weather in July »
Weather in August
The last month of the summer,August, is another warm month inPleasanton,California, with an average temperature varying between 56.7°F (13.7°C) and 84.7°F (29.3°C). With the arrival of August, Pleasanton's average high-temperature registers at a still moderately hot 84.7°F (29.3°C), indicating a subtle variation from the previous month.Weather in August »
Weather in September
The first month of the autumn,September, is still a warm month inPleasanton,California, with an average temperature ranging between max 82°F (27.8°C) and min 56.3°F (13.5°C). In September, Pleasanton experiences a minor shift in meteorological conditions with average high-temperatures marked at a still warm 82°F (27.8°C), closely mirroring the climate inAugust.Weather in September »
Weather in October
October, the same asSeptember, is another warm autumn month inPleasanton,California, with temperature in the range of an average high of 74.1°F (23.4°C) and an average low of 52.5°F (11.4°C). The transition to October results in a modest reduction in average high-temperature, moving from a warm 82°F (27.8°C) in September to a still moderately hot 74.1°F (23.4°C).Weather in October »
Weather in November
November, the last month of the autumn inPleasanton, is also an enjoyable month, with an average temperature fluctuating between 46.4°F (8°C) and 63.7°F (17.6°C). In November, the meteorological conditions alter, with the average high-temperature shifting from a warm 74.1°F (23.4°C) inOctober to a refreshing 63.7°F (17.6°C).Weather in November »
Weather in December
December, the first month of the winter inPleasanton, is also a fresh month, with an average temperature varying between 55°F (12.8°C) and 41.7°F (5.4°C). With average high and low temperatures of 55°F (12.8°C) and 41.7°F (5.4°C) respectively, December is Pleasanton's coldest month.Weather in December »
Frequently asked questions
How much does it rain in Pleasanton?
Throughout the year, there are70.2 rainfall days, and10.98" (279mm) ofprecipitation is accumulated.
When is the lowest UV index?
The months with thelowest UV index areJanuary,February,November andDecember, with an average maximumUV index of3.
What is the rainiest month?
February is the month with themost rainfall. Rain falls for8.3 days and accumulates2.05" (52mm) ofprecipitation.
What is the most humid month?
Themost humid month isMarch, with an averagerelative humidity of74%.
When is Daylight Saving Time (DST)?
OnSunday, March 10. 2024, at 2:00 am, Daylight Saving Timestarts, 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?
The month with thelongest days isJune, with an average of14h and42min ofdaylight.
What are the months with the highest UV index?
The months with thehighest UV index areJune throughAugust, with an average maximumUV index of6.
What month is the hottest?
In Pleasanton,July is the month with thehighest recorded average temperatures, measuring ahigh of85.3°F (29.6°C) and alow of55.9°F (13.3°C).
What are the least humid months?
The months with thelowest humidity areJuly andSeptember, with an averagerelative humidity of56%.
What is the driest month?
July andAugust are months with theleast rain when the rain falls for1.8 days and typically aggregates up to0.04" (1mm) ofrain.
What month has the most sunshine?
July has themost sunshine of the year, with an average of12.1h ofsunshine.
What is the coldest time of year?
December is thecoldest month, with an averagehigh-temperature of55°F (12.8°C) and an averagelow-temperature of41.7°F (5.4°C).
What is the month with the shortest days?
The month with theshortest days isDecember, with an average of9h and36min ofdaylight.
What is the month with the least sunshine?
With an average of6h ofsunshine,December has theleast sunshine of the year.
Pleasanton, CA
The warmest month (with the highest average high temperature) isJuly (85.3°F).
The month with the lowest average high temperature isDecember (55°F).
The month with the highest average low temperature isAugust (56.7°F).
The coldest month (with the lowest average low temperature) isJanuary (41.5°F).
Pleasanton, CA
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.08"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 isJanuary (30.14"Hg).
The months with the lowest atmospheric pressure areJune,August andSeptember (29.92"Hg).
Pleasanton, CA
- Average wind speed in January:
4.3mph - Average wind speed in February:
5.3mph - Average wind speed in March:
5.5mph - Average wind speed in April:
5.9mph - Average wind speed in May:
6.3mph - Average wind speed in June:
6.2mph
The windiest month (with the highest average wind speed) isMay (6.3mph).
The calmest month (with the lowest average wind speed) isNovember (4.2mph).
Pleasanton, CA
The month with the highest relative humidity isMarch (74%).
The months with the lowest relative humidity areJuly andSeptember (56%).
Pleasanton, CA
The wettest month (with the highest rainfall) isFebruary (2.05").
The driest months (with the least rainfall) areJuly andAugust (0.04").
Pleasanton, CA
- Average rainfall days in January:
9.3 days - Average rainfall days in February:
8.3 days - Average rainfall days in March:
12.4 days - Average rainfall days in April:
7.3 days - Average rainfall days in May:
4.6 days - Average rainfall days in June:
1.7 days
- Average rainfall days in July:
1.8 days - Average rainfall days in August:
0.9 days - Average rainfall days in September:
2.3 days - Average rainfall days in October:
4.5 days - Average rainfall days in November:
6.7 days - Average rainfall days in December:
10.4 days
The month with the highest number of rainy days isMarch (12.4 days).
The month with the least rainy days isAugust (0.9 days).
Pleasanton, 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 1min - Average daylight in June:
14h and 4min
- 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 4min
The month with the longest days isJune (Average daylight: 14h and 42min).
The month with the shortest days isDecember (Average daylight: 9h and 36min).
- Average sunshine in January:
6h and 2min - Average sunshine in February:
6h and 1min - Average sunshine in March:
8h and 0min - 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 1min - 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 isJuly (Average sunshine: 12h and 6min).
The month with the least sunshine isDecember (Average sunshine: 6h and 0min).
Pleasanton, CA
- Average sunshine days in January:
20.8 days - Average sunshine days in February:
19 days - Average sunshine days in March:
17.6 days - Average sunshine days in April:
22.1 days - Average sunshine days in May:
25.6 days - Average sunshine days in June:
27.7 days
- Average sunshine days in July:
28.3 days - Average sunshine days in August:
29 days - Average sunshine days in September:
27 days - Average sunshine days in October:
25.4 days - Average sunshine days in November:
22.4 days - Average sunshine days in December:
19.6 days
The month with the most sunshine days isAugust (29 days).
The month with the least sunshine days isMarch (17.6 days).
Pleasanton, CA
The months with the highest UV index areJune,July andAugust (UV index 6).
The months with the lowest UV index areJanuary,February,November andDecember (UV index 3).
Pleasanton, CA
The month with the most cloud cover isMarch (Cloud cover 35).
The month with the least cloud cover isJuly (Cloud cover 5).
Pleasanton, CA
The months with the highest visibility areJanuary,February,March,April,May,June,July,August,September,October,November andDecember (6mi).
The months with the lowest visibility areJanuary,February,March,April,May,June,July,August,September,October,November andDecember (6mi).
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