Climate and monthly weather forecastConcord, CA
Climate and monthly weather forecast
The climate of Concord
Concord, located in California, USA, experiences a Mediterranean, warm summer climate, classified under Köppen climate as Csb. On average, the city is blessed with a warm and pleasant environment suitable for outdoor activities.Temperature fluctuations in Concord are comparatively moderate. The highest average temperatures range from 56.8°F (13.8°C) in January to a peak of 83.7°F (28.7°C) in July while the lowest vary between 42.3°F (5.7°C) in January and rise to a maximum of 57.4°F (14.1°C) in September. Humidity levels fluctuate between a low of 56% in September and reach a maximum of 73% in January, creating the typical Mediterranean atmosphere.
Rainfall remains irregular with the highest precipitation of 0.87" (22mm) in February and the lowest of 0.04" (1mm) from June to September. Annually, the fewest rainfall days are observed in August, virtually dry, while February gets significantly more with 9.8 days. June and July share the longest daylight of approximately 14.8 hours, while December records the shortest with 9.6 hours.
Meanwhile, sunshine hours, UV index, and wind speed maintain relatively stable but noticeable variations. November records the most sunshine days with 29.5 days, while February has the fewest with 20 days. The UV Index is highest during summer months, attaining a peak of 6 in June and July. Average wind speeds vary from 4.5mph (7.2km/h) in November to 7.6mph (12.2km/h) in May and gusting up to 10.8mph (17.4km/h) in May as well. The average atmospheric pressure remains relatively unchanged year-round with slight variations from 29.91" (760mm) in June to 30.14" (766mm) in January.
The best time to visit Concord
Taking into account climatic conditions, the best time for outdoor activities in Concord is from June to September. These months offer the longest days with an average of 14.8 hours of daylight in June and July. Furthermore, these months also record the highest amounts of sunshine, followed by few rainfall days and minimal rainfall amounts, enhancing the suitability for tourism. Temperatures also are at their most pleasant during this period, averaging approximately 80.2°F (26.8°C) in June, 83.7°F (28.7°C) in July, 82.8°F (28.2°C) in August, and 81.9°F (27.7°C) in September.The worst time to visit Concord
Conversely, the least desirable period to visit Concord is during the rainy season, which peaks in February with an average rainfall of 0.87" (22mm). This period also marks the shortest sunshine days at an average of 20 days in February. Despite this, temperatures remain relatively mild, rarely dipping below 43°F (6.1°C).Spring weather in Concord
In Concord, spring season sets in from March to May. The period witnesses increment in temperature, evolving from 63.1°F (17.3°C) in March to 68.7°F (20.4°C) in April, and rising further to 73.2°F (22.9°C) in May. Simultaneously, daylight hours increase progressively from 12 hours in March to 13.2 hours in April, and further to 14.2 hours in May. Although rainfall recedes from the peak of 0.63" (16mm) in March to insignificant 0.16" (4mm) in April and May, humidity levels decrease from 73% in March to 67% in April and 63% in May.Summer weather in Concord
June commences the summer months stretching to August in Concord. This period records the highest average temperatures between 80.2°F (26.8°C) in June and 82.8°F (28.2°C) in August. Long daylight hours are preserved throughout the summer, ranging from 14.8 hours in June to 13.6 hours in August. Rainfall takes a backseat at just 0.04" (1mm), fostering dry conditions. Consequently, the UV index in these months reaches a maximum of 6, necessitating the need for sun protection.Autumn weather in Concord
Autumn, from September to November, brings cooler temperatures and increased rainfall to Concord. Temperatures decrease progressively from 81.9°F (27.7°C) in September, 74.8°F (23.8°C) in October, and down to 63.5°F (17.5°C) in November. Concurrently, daylight hours reduce from 12.4 hours in September to 11.2 hours in October and eventually drop to 10.1 hours in November. Rainfall increases modestly starting at 0.04" (1mm) in September to 0.16" (4mm) in October and reaches 0.39" (10mm) in November.Winter weather in Concord
Winter season is initiated in December, culminating in February in Concord. During this period, temperatures oscillate from 55.6°F (13.1°C) in December, dips to the lowest level of the year at 56.8°F (13.8°C) in January, and slightly increases to 60.1°F (15.6°C) in February. Shortest daylight is recorded in December at 9.6 hours, and it increases slightly to 9.9 hours in January and further to 10.8 hours in February. Winter weather in Concord is typically defined by increased rainfall from 0.59" (15mm) in December peaking at 0.87" (22mm) in February.Weather in January
The opening of the year in Concord, California, brings somewhat chilly conditions, with temperatures noticing a dip from December. It sets the stage for mild, tempered weather in the days to come. Relative humidity expressing an upwards trend from the preceding month, lends a brisk feel to the air. Weather in January »Weather in February
Shifting from January to February in Concord, becomes slightly warmer. However, this shift does not detract in any major way from the winter feels. Showers become more frequent, as rainfall records a gentle increase, making February a moist month, particularly when compared to the following month of March. Weather in February »Weather in March
The arrival of spring is heralded by March, with a slight upturn in temperatures. March in Concord becomes somewhat windier, but this corresponds with a significant increase in daylight hours, indicative of the exchange between winter and spring. Weather in March »Weather in April
April brings more daylight to Concord, embracing a substantial shift in the weather pattern. Days become visibly longer and temperatures start climbing, while rainfall takes a surprising dip from March. It's a month characterized by the least rainfall, measured at a mere 0.16" (4mm). Weather in April »Weather in May
May in Concord sees a continuation of a warmer trend, leading to more outdoor-friendly conditions. Temperature nears their annual highs and looms a shadow over the declining visibility. Plants come to life as humidity reduces considerably from the April levels. Weather in May »Weather in June
June marks the start of summer with steadily increasing temperatures. Humidity is at its lowest, making it comfortable for outdoor activities. A more pronounced decrease in average cloud cover makes for decidedly sunnier days. Concord swelters under a June sun while hitting a yearly low in rainfall at 0.04" (1mm). Weather in June »Weather in July
The heart of summer beats in July with temperatures soaring to their highest in the year. It's a great time for people to cool off at Concord's parks and pools. Perceived cloud cover dwindles with the thriving sun and rain becomes a rare scene. Weather in July »Weather in August
August extends the high-temperature trend from July but brings a slight increase in humidity. More daylight hours in combination with a decrease in cloud coverage increases urban heat. Meanwhile, average pressure maintains a steady level during the period. Weather in August »Weather in September
Concord experiences a slight dip in temperatures in September. These milder temperatures mark the early onset of autumn weather. Humidity starts to recover, inducing a notable freshness in the air. In September, rainfall remains still, occupying a low 0.04" (1mm). Weather in September »Weather in October
October stands out as the month that brings the first real feel of fall. Temperatures noticeably change, and it is not uncommon to start the day with heavier clothes. Rainfall becomes more frequent, bringing life to the parched landscapes of Concord. Weather in October »Weather in November
November brings more pronounced changes in the weather, transitioning Concord towards the colder months ahead. Average temperatures take a considerable dip, indicating the onset of winter. Daylight hours reduce considerably, and rainfall increases preparing for the upcoming wet winter months. Weather in November »Weather in December
December marks the height of winter in Concord. Weather takes a frosty turn with a further drop in average temperatures. Cold winds bring a sharp reminder of winter's grip and rainfall increases filling the rivers and streams. Although temperatures dip, December sees the second-highest peak in relative humidity at 70%. 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
January and March, with an average relative humidity of 73%, are most humid months.
Throughout the year, there are 49.3 rainfall days, and 3.82" (97mm) of precipitation is accumulated.
The months with the lowest UV index in Concord are January, February, November and December, with an average maximum UV index of 3.
The month with the most rainfall in Concord, California, is February, when the rain falls for 5.8 days and typically aggregates up to 0.87" (22mm) of precipitation.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Concord, 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.
June through September are months with the least rain in Concord, California, when the rain falls for 0.9 days and typically aggregates up to 0.04" (1mm) of rain.
The month with the longest days is June, with an average of 14h and 48min of daylight.
June and August, with an average maximum UV index of 6, are months with the highest UV index in Concord.
In Concord, July registers the highest temperatures, averaging 83.7°F (28.7°C) at the peak and 55.9°F (13.3°C) at the lowest.
The month with the most sunshine in Concord, California, is July, with an average of 12h of sunshine.
With an average relative humidity of 56%, September is the least humid month.
In Concord, California, the average lowest temperatures are observed in December, with a high of 55.6°F (13.1°C) and a low of 42.4°F (5.8°C).
December has the shortest days of the year in Concord, California, with an average of 9h and 36min of daylight.
The month with the least sunshine in Concord is December, with an average of 5.7h of sunshine.
Average temperature
Concord, CA
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is December (55.6°F).
The month with the highest average low temperature is September (57.4°F).
The coldest month (with the lowest average low temperature) is January (42.3°F).
Average pressure
Concord, 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:
29.97"Hg - Average pressure in June:
29.91"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 month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Concord, CA
- Average wind speed in January:
4.7mph - Average wind speed in February:
5.5mph - Average wind speed in March:
6mph - Average wind speed in April:
6.6mph - Average wind speed in May:
7.6mph - Average wind speed in June:
7.5mph
The windiest month (with the highest average wind speed) is May (7.6mph).
The calmest month (with the lowest average wind speed) is November (4.5mph).
Average humidity
Concord, CA
The months with the highest relative humidity are January and March (73%).
The month with the lowest relative humidity is September (56%).
Average rainfall
Concord, CA
- Average rainfall in January:
0.67" - Average rainfall in February:
0.87" - Average rainfall in March:
0.63" - Average rainfall in April:
0.16" - Average rainfall in May:
0.2" - Average rainfall in June:
0.04"
- Average rainfall in July:
0.04" - Average rainfall in August:
0.04" - Average rainfall in September:
0.04" - Average rainfall in October:
0.16" - Average rainfall in November:
0.39" - Average rainfall in December:
0.59"
The wettest month (with the highest rainfall) is February (0.87").
The driest months (with the least rainfall) are June, July, August and September (0.04").
Average rainfall days
Concord, CA
- Average rainfall days in January:
6.5 days - Average rainfall days in February:
5.8 days - Average rainfall days in March:
9.8 days - Average rainfall days in April:
5.3 days - Average rainfall days in May:
2.8 days - Average rainfall days in June:
0.9 days
- Average rainfall days in July:
1.3 days - Average rainfall days in August:
0.5 days - Average rainfall days in September:
1.8 days - Average rainfall days in October:
2.6 days - Average rainfall days in November:
4.5 days - Average rainfall days in December:
7.5 days
The month with the highest number of rainy days is March (9.8 days).
The month with the least rainy days is August (0.5 days).
Average daylight / Average sunshine
Concord, 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 48min
- 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 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January:
5h and 54min - Average sunshine in February:
6h and 0min - Average sunshine in March:
7h and 42min - Average sunshine in April:
10h and 12min - Average sunshine in May:
10h and 42min - Average sunshine in June:
11h and 42min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
11h and 48min - Average sunshine in September:
11h and 0min - Average sunshine in October:
7h and 0min - Average sunshine in November:
6h and 24min - Average sunshine in December:
5h and 42min
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 42min).
Average sunshine days
Concord, CA
- Average sunshine days in January:
23.3 days - Average sunshine days in February:
21.3 days - Average sunshine days in March:
20 days - Average sunshine days in April:
24.1 days - Average sunshine days in May:
27 days - Average sunshine days in June:
28.3 days
- Average sunshine days in July:
29.5 days - Average sunshine days in August:
29.4 days - Average sunshine days in September:
27.8 days - Average sunshine days in October:
27.2 days - Average sunshine days in November:
24.2 days - Average sunshine days in December:
22.2 days
The month with the most sunshine days is July (29.5 days).
The month with the least sunshine days is March (20 days).
Average UV index
Concord, CA
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover
Concord, CA
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility
Concord, 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).
