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 snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, is another comfortable winter month in Montclair, California, with an average temperature ranging between max 64.6°F (18.1°C) and min 46.8°F (8.2°C). In January, the average high-temperature is relatively the same as in December - a still comfortable 64.6°F (18.1°C). Weather in January »
Weather in February
The last month of the winter, February, is another comfortable month in Montclair, California, with an average temperature fluctuating between 64°F (17.8°C) and 45.7°F (7.6°C). In February, the average high-temperature is almost the same as in January - a still comfortable 64°F (17.8°C). Weather in February »
Weather in March
March, the first month of the spring in Montclair, is a pleasant month, with an average temperature varying between 68.4°F (20.2°C) and 46.9°F (8.3°C). In March, the average high-temperature is relatively the same as in February - an agreeable 68.4°F (20.2°C). Weather in March »
Weather in April
April, the same as March, in Montclair, California, is another pleasant spring month, with an average temperature varying between 50.2°F (10.1°C) and 72.9°F (22.7°C). In April, the average high-temperature is essentially the same as in March - a still agreeable 72.9°F (22.7°C). Weather in April »
Weather in May
The last month of the spring, May, is a warm month in Montclair, California, with an average temperature varying between 76.6°F (24.8°C) and 53.6°F (12°C). In Montclair, the average high-temperature in May is almost the same as in April - a moderately hot 76.6°F (24.8°C). Weather in May »
Weather in June
The first month of the summer, June, is also a moderately hot month in Montclair, California, with an average temperature varying between 58.5°F (14.7°C) and 84°F (28.9°C). In Montclair, the average high-temperature in June slightly increases from 76.6°F (24.8°C) in May to a still moderately hot 84°F (28.9°C). Weather in June »
Weather in July
July in Montclair, California, is a tropical summer month, with an average temperature fluctuating between 64.8°F (18.2°C) and 90°F (32.2°C). In Montclair, the average high-temperature in July slightly increases from a warm 84°F (28.9°C) in June to a hot 90°F (32.2°C). Weather in July »
Weather in August
August, the last month of the summer in Montclair, is another hot month, with an average temperature fluctuating between 65.8°F (18.8°C) and 91°F (32.8°C). August is the warmest month, with an average high-temperature of 91°F (32.8°C) and an average low-temperature of 65.8°F (18.8°C). In August, the average heat index is calculated to be a tropical 93.2°F (34°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a hot month in Montclair, California, with an average temperature varying between 63.5°F (17.5°C) and 88.2°F (31.2°C). In September, the average high-temperature is almost the same as in August - a still hot 88.2°F (31.2°C). Weather in September »
Weather in October
October, the same as September, is another warm autumn month in Montclair, California, with an average temperature varying between 57.9°F (14.4°C) and 79°F (26.1°C). In Montclair, the average high-temperature in October decreases from a hot 88.2°F (31.2°C) in September to a warm 79°F (26.1°C). Weather in October »
Weather in November
November, the last month of the autumn in Montclair, is another pleasant month, with temperature in the range of an average high of 70.7°F (21.5°C) and an average low of 50.9°F (10.5°C). In November, the average high-temperature slightly decreases from a warm 79°F (26.1°C) in October to an agreeable 70.7°F (21.5°C). Weather in November »
Weather in December
December, the first month of the winter in Montclair, is also an enjoyable month, with an average temperature varying between 62.1°F (16.7°C) and 45.5°F (7.5°C). December is the coldest month, with an average high-temperature of 62.1°F (16.7°C) and an average low-temperature of 45.5°F (7.5°C). Weather in December »
[Resources]FAQ
How many days does it rain in Montclair?
Throughout the year, there are 49.6 rainfall days, and 7.8" (198mm) of precipitation is accumulated.
When it does not snow in Montclair?
In Montclair, snow does not fall in January, March through December.
How many days does it snow in Montclair?
Throughout the year, in Montclair, California, there are 0.1 snowfall days.
What is the rainiest month in Montclair?
The month with the most rainfall in Montclair is February, when the rain falls for 6 days and typically aggregates up to 1.77" (45mm) of precipitation.
When does it snow in Montclair?
The only month with snowfall in Montclair is February.
What is the snowiest month in Montclair?
The month with the most snowfall days is February, when snow falls for 0.1 days.
What are the months with the least sunshine in Montclair?
The months with the least sunshine are February and December, with an average of 6.9h of sunshine.
What are the most humid months in Montclair?
March and May, with an average relative humidity of 54%, are most humid months in Montclair, California.
When is Daylight Saving Time (DST) in Montclair?
On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts in Montclair, California, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from PDT to PST.
What is the driest month in Montclair?
The month with the least rainfall in Montclair, California, is June, when the rain falls for 1.2 days and typically collects 0.04" (1mm) of precipitation.
When are the longest days in Montclair?
The month with the longest days is June, with an average of 14h and 23min of daylight.
What month has the most sunshine in Montclair?
With an average of 12.1h of sunshine, July has the most sunshine of the year.
When is the highest UV index in Montclair?
The months with the highest UV index are July and August, with an average maximum UV index of 7.
What is the warmest month in Montclair?
August is the warmest month, with an average high-temperature of 91°F (32.8°C) and an average low-temperature of 65.8°F (18.8°C).
What is the least humid month in Montclair?
August is the least humid month, with an average relative humidity of 42%.
What is the coldest month in Montclair?
The coldest month in Montclair is December, with an average high-temperature of 62.1°F (16.7°C) and an average low-temperature of 45.5°F (7.5°C).
What is the month with the shortest days in Montclair?
With an average of 9h and 56min of daylight, December has the shortest days of the year in Montclair, California.
When is the lowest UV index in Montclair?
The month with the lowest UV index in Montclair, California, is December, with an average maximum UV index of 3.
Average temperature
Montclair, CA
The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is December (62.1°F).
The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is December (45.5°F).
Average pressure
Montclair, CA
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.05"Hg - Average pressure in March:
30.02"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.86"Hg
- Average pressure in July:
29.89"Hg - Average pressure in August:
29.88"Hg - Average pressure in September:
29.88"Hg - Average pressure in October:
29.94"Hg - Average pressure in November:
30.03"Hg - Average pressure in December:
30.07"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed
Montclair, CA
- Average wind speed in January:
5.3mph - Average wind speed in February:
5mph - Average wind speed in March:
5.2mph - Average wind speed in April:
5.8mph - Average wind speed in May:
5.8mph - Average wind speed in June:
5.4mph
- Average wind speed in July:
5.1mph - Average wind speed in August:
4.7mph - Average wind speed in September:
4.4mph - Average wind speed in October:
4.8mph - Average wind speed in November:
5mph - Average wind speed in December:
5.2mph
The windiest months (with the highest average wind speed) are April and May (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).
Average humidity
Montclair, CA
The months with the highest relative humidity are March and May (54%).
The month with the lowest relative humidity is August (42%).
Average rainfall
Montclair, CA
- Average rainfall in January:
1.18" - Average rainfall in February:
1.77" - Average rainfall in March:
0.79" - Average rainfall in April:
0.71" - Average rainfall in May:
0.24" - Average rainfall in June:
0.04"
- Average rainfall in July:
0.16" - Average rainfall in August:
0.12" - Average rainfall in September:
0.12" - Average rainfall in October:
0.24" - Average rainfall in November:
0.75" - Average rainfall in December:
1.69"
The wettest month (with the highest rainfall) is February (1.77").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days
Montclair, CA
- Average rainfall days in January:
5.4 days - Average rainfall days in February:
6 days - Average rainfall days in March:
7.1 days - Average rainfall days in April:
5.7 days - Average rainfall days in May:
3.8 days - Average rainfall days in June:
1.2 days
- Average rainfall days in July:
2.8 days - Average rainfall days in August:
1.7 days - Average rainfall days in September:
2.5 days - Average rainfall days in October:
3 days - Average rainfall days in November:
4 days - Average rainfall days in December:
6.4 days
The month with the highest number of rainy days is March (7.1 days).
The month with the least rainy days is June (1.2 days).
Average snowfall days
Montclair, CA
- Average snowfall days in January:
0 days - Average snowfall days in February:
0.1 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 (0.1 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
Montclair, CA
- Average daylight in January:
10h and 1min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 0min - Average daylight in June:
14h and 2min
- Average daylight in July:
14h and 1min - Average daylight in August:
13h and 2min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 2min - Average daylight in December:
9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January:
7h and 0min - Average sunshine in February:
6h and 5min - Average sunshine in March:
9h and 0min - Average sunshine in April:
11h and 2min - Average sunshine in May:
11h and 5min - Average sunshine in June:
12h and 0min
- Average sunshine in July:
12h and 1min - Average sunshine in August:
12h and 0min - Average sunshine in September:
10h and 4min - Average sunshine in October:
8h and 5min - Average sunshine in November:
7h and 2min - Average sunshine in December:
6h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 54min).
Average sunshine days
Montclair, CA
- Average sunshine days in January:
24.6 days - Average sunshine days in February:
21.5 days - Average sunshine days in March:
23.6 days - Average sunshine days in April:
23.8 days - Average sunshine days in May:
26 days - Average sunshine days in June:
28.2 days
- Average sunshine days in July:
25.4 days - Average sunshine days in August:
26.8 days - Average sunshine days in September:
25.4 days - Average sunshine days in October:
26.5 days - Average sunshine days in November:
25.5 days - Average sunshine days in December:
23.2 days
The month with the most sunshine days is June (28.2 days).
The month with the least sunshine days is February (21.5 days).
Average UV index
Montclair, CA
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover
Montclair, CA
The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility
Montclair, 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).
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