Climate and monthly weather forecastLafayette, CA
Climate and monthly weather forecast
Weather in January
January in Lafayette, California, is a moderate winter month, with an average temperature varying between 43.3°F (6.3°C) and 56.5°F (13.6°C). Lafayette transitions into January recording an average high-temperature of a mild 56.5°F (13.6°C), closely aligning with the preceding month's temperature. Weather in January »Weather in February
The last month of the winter, February, is another mild month in Lafayette, California, with an average temperature fluctuating between 44.1°F (6.7°C) and 59.4°F (15.2°C). January's transformation into February witnesses an average high-temperature of a still mild 59.4°F (15.2°C), noting a minor change from the preceding month. Weather in February »Weather in March
March, the first month of the spring in Lafayette, is a comfortable month, with an average temperature ranging between min 45.1°F (7.3°C) and max 61.7°F (16.5°C). March's beginning signals an average high-temperature of an enjoyable 61.7°F (16.5°C), barely different from February's 59.4°F (15.2°C). Weather in March »Weather in April
April, the same as March, is another enjoyable spring month in Lafayette, California, with an average temperature fluctuating between 66.7°F (19.3°C) and 47.3°F (8.5°C). April brings a marginal elevation to a still enjoyable 66.7°F (19.3°C) from March's 61.7°F (16.5°C) in Lafayette's average high-temperatures. Weather in April »Weather in May
May, the last month of the spring in Lafayette, is an agreeable month, with an average temperature varying between 50.2°F (10.1°C) and 70.3°F (21.3°C). Lafayette's shift into May is marked by a subtle change to an agreeable 70.3°F (21.3°C) from April's 66.7°F (19.3°C) in temperature. Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Lafayette, California, with an average temperature ranging between max 77.4°F (25.2°C) and min 54.1°F (12.3°C). Observing a slight rise in June, the average high-temperature shifts from May's pleasant 70.3°F (21.3°C) to a moderately hot 77.4°F (25.2°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Lafayette, California, with temperature in the range of an average high of 80.1°F (26.7°C) and an average low of 55.6°F (13.1°C). Lafayette's warmest month, July, registers temperatures that range from a high of 80.1°F (26.7°C) to a low of 55.6°F (13.1°C). Weather in July »Weather in August
August, the last month of the summer in Lafayette, is also a moderately hot month, with an average temperature ranging between max 79.3°F (26.3°C) and min 56.8°F (13.8°C). August's presence records an average high-temperature of a still moderately hot 79.3°F (26.3°C), closely mirroring July's climate. Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Lafayette, California, with an average temperature fluctuating between 79.5°F (26.4°C) and 56.8°F (13.8°C). Lafayette transitions into September recording an average high-temperature of a still warm 79.5°F (26.4°C), closely aligning with the preceding month's temperature. Weather in September »Weather in October
October, like September, is an agreeable autumn month in Lafayette, California, with an average temperature fluctuating between 72.5°F (22.5°C) and 54.1°F (12.3°C). Lafayette experiences a moderate temperature shift at the start of October, with average high-temperatures adjusting a bit from a moderately hot 79.5°F (26.4°C) in September to a pleasant 72.5°F (22.5°C). Weather in October »Weather in November
November, the last month of the autumn in Lafayette, is another refreshing month, with an average temperature ranging between min 48°F (8.9°C) and max 63.3°F (17.4°C). November is characterized by a reduction in the average high-temperature, from an agreeable 72.5°F (22.5°C) in October to an enjoyable 63.3°F (17.4°C). Weather in November »Weather in December
December, the first month of the winter in Lafayette, is still a cool month, with an average temperature ranging between min 43.7°F (6.5°C) and max 55.2°F (12.9°C). In Lafayette, the month of December registers the lowest temperatures, averaging 55.2°F (12.9°C) at the peak and 43.7°F (6.5°C) at the lowest. Weather in December »Updated: Feb 9, 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 74.4 rainfall days, and 12.6" (320mm) of precipitation is accumulated.
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Lafayette.
The month with the most rainfall is February, when the rain falls for 8.6 days and typically aggregates up to 2.6" (66mm) of precipitation.
March is the most humid month in Lafayette, with an average relative humidity of 74%.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Lafayette, 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.
With an average of 14h and 42min of daylight, June has the longest days of the year in Lafayette, California.
The month with the highest UV index in Lafayette is June, with an average maximum UV index of 6.
July, recognised by an average high temperature of 80.1°F (26.7°C) and a low of 55.6°F (13.1°C), is Lafayette's warmest month.
July and August are months with the least rain when the rain falls for 1.4 days and typically aggregates up to 0.04" (1mm) of rain.
With an average of 12h of sunshine, July has the most sunshine of the year in Lafayette.
The least humid month in Lafayette is October, with an average relative humidity of 60%.
December stands out as Lafayette's coldest month, with an average high-temperature of 55.2°F (12.9°C) and a low-temperature of 43.7°F (6.5°C).
December has the shortest days of the year in Lafayette, California, with an average of 9h and 36min of daylight.
The month with the least sunshine is December, with an average of 5.8h of sunshine.
Average temperature
Lafayette, CA
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is December (55.2°F).
The months with the highest average low temperature are August and September (56.8°F).
The coldest month (with the lowest average low temperature) is January (43.3°F).
Average pressure
Lafayette, 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 is January (30.14"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed
Lafayette, CA
- Average wind speed in January:
4.8mph - Average wind speed in February:
5.7mph - Average wind speed in March:
6.1mph - Average wind speed in April:
6.5mph - Average wind speed in May:
7.2mph - Average wind speed in June:
7mph
- Average wind speed in July:
6.5mph - Average wind speed in August:
6.2mph - Average wind speed in September:
5.5mph - Average wind speed in October:
4.9mph - Average wind speed in November:
4.6mph - Average wind speed in December:
5.2mph
The windiest month (with the highest average wind speed) is May (7.2mph).
The calmest month (with the lowest average wind speed) is November (4.6mph).
Average humidity
Lafayette, CA
The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is October (60%).
Average rainfall
Lafayette, CA
- Average rainfall in January:
2.13" - Average rainfall in February:
2.6" - Average rainfall in March:
2.17" - Average rainfall in April:
0.71" - Average rainfall in May:
0.63" - 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:
0.59" - Average rainfall in November:
1.42" - Average rainfall in December:
2.05"
The wettest month (with the highest rainfall) is February (2.6").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days
Lafayette, CA
- Average rainfall days in January:
10.1 days - Average rainfall days in February:
8.6 days - Average rainfall days in March:
13.1 days - Average rainfall days in April:
7.8 days - Average rainfall days in May:
5.3 days - Average rainfall days in June:
1.8 days
- Average rainfall days in July:
1.4 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:
7.2 days - Average rainfall days in December:
10.7 days
The month with the highest number of rainy days is March (13.1 days).
The month with the least rainy days is August (0.8 days).
Average daylight / Average sunshine
Lafayette, CA
- Average daylight in January:
9h and 54min - 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 12min - Average daylight in June:
14h and 42min
- Average daylight in July:
14h and 30min - 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 36min
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 36min).
- Average sunshine in January:
6h and 6min - Average sunshine in February:
6h and 6min - Average sunshine in March:
7h and 48min - Average sunshine in April:
10h and 24min - Average sunshine in May:
10h and 48min - Average sunshine in June:
11h and 42min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
11h and 54min - Average sunshine in September:
11h and 6min - Average sunshine in October:
7h and 0min - Average sunshine in November:
6h and 36min - Average sunshine in December:
5h and 48min
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 48min).
Average sunshine days
Lafayette, CA
- Average sunshine days in January:
19.7 days - Average sunshine days in February:
18 days - Average sunshine days in March:
16.3 days - Average sunshine days in April:
20.9 days - Average sunshine days in May:
23.5 days - Average sunshine days in June:
26.2 days
- Average sunshine days in July:
27.4 days - Average sunshine days in August:
27.8 days - Average sunshine days in September:
25.9 days - Average sunshine days in October:
25.2 days - Average sunshine days in November:
21.5 days - Average sunshine days in December:
19.2 days
The month with the most sunshine days is August (27.8 days).
The month with the least sunshine days is March (16.3 days).
Average UV index
Lafayette, 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
Lafayette, CA
The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility
Lafayette, 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).
