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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 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 Fontana, California, with an average temperature ranging between min 45.3°F (7.4°C) and max 63.1°F (17.3°C). In January, the average high-temperature registers at a still refreshing 63.1°F (17.3°C), nearly identical to December's 60.8°F (16°C). Weather in January »
Weather in February
The last month of the winter, February, is another comfortable month in Fontana, California, with an average temperature varying between 44.2°F (6.8°C) and 63.3°F (17.4°C). Fontana experiences a minor change to a still refreshing 63.3°F (17.4°C) in average high-temperature during February, closely reflecting January. Weather in February »
Weather in March
The first month of the spring, March, is still a comfortable month in Fontana, California, with an average temperature varying between 46°F (7.8°C) and 66.7°F (19.3°C). The arrival of March records an average high-temperature of a still enjoyable 66.7°F (19.3°C), closely related to the 63.3°F (17.4°C) observed in February. Weather in March »
Weather in April
April is an agreeable spring month in Fontana, California, with an average temperature ranging between min 49.6°F (9.8°C) and max 72°F (22.2°C). The arrival of April denotes a barely perceptible change in the average high-temperatures to an agreeable 72°F (22.2°C) from March's 66.7°F (19.3°C). Weather in April »
Weather in May
The last month of the spring, May, is a warm month in Fontana, California, with temperature in the range of an average low of 54°F (12.2°C) and an average high of 76.6°F (24.8°C). The high-temperature average in May for Fontana, California, is a warm 76.6°F (24.8°C), staying closely aligned with April's conditions. Weather in May »
Weather in June
June, the first month of the summer in Fontana, is also a moderately hot month, with temperature in the range of an average high of 85.3°F (29.6°C) and an average low of 59.2°F (15.1°C). In Fontana, the average high-temperature in June slightly rises, from 76.6°F (24.8°C) in May, to a still warm 85.3°F (29.6°C). Weather in June »
Weather in July
July is a hot summer month in Fontana, California, with an average temperature ranging between max 91°F (32.8°C) and min 65.8°F (18.8°C). With the start of July, the average high-temperature marginally shifts from June's moderately hot 85.3°F (29.6°C) to a tropical 91°F (32.8°C). Weather in July »
Weather in August
The last month of the summer, August, is also a hot month in Fontana, California, with an average temperature ranging between min 67.3°F (19.6°C) and max 92.1°F (33.4°C). The highest temperatures are recorded in August, with averages reaching a high of 92.1°F (33.4°C) and a low of 67.3°F (19.6°C). Weather in August »
Weather in September
September, the first month of the autumn in Fontana, is also a hot month, with an average temperature fluctuating between 88.3°F (31.3°C) and 63.9°F (17.7°C). Shifting into September, Fontana records an average high-temperature of a still hot 88.3°F (31.3°C), presenting minor fluctuations compared to the previous month. Weather in September »
Weather in October
October, like September, in Fontana, California, is a moderately hot autumn month, with an average temperature fluctuating between 57.2°F (14°C) and 78.8°F (26°C). The transition into October is accompanied by a temperature decrease, with the average high-temperature shifting from a tropical 88.3°F (31.3°C) in September to a moderately hot 78.8°F (26°C). Weather in October »
Weather in November
November, the last month of the autumn in Fontana, is also an agreeable month, with temperature in the range of an average low of 50.5°F (10.3°C) and an average high of 69.3°F (20.7°C). As October transitions to November, the average high-temperature falls from a moderately hot 78.8°F (26°C) to an agreeable 69.3°F (20.7°C). Weather in November »
Weather in December
The first month of the winter, December, is also an enjoyable month in Fontana, California, with an average temperature ranging between max 60.8°F (16°C) and min 44.2°F (6.8°C). With average high temperatures of 60.8°F (16°C) and lows of 44.2°F (6.8°C), December is the coldest month. Weather in December »
[Resources]Frequently asked questions
How much does it rain in Fontana?
Throughout the year, in Fontana, California, there are 48.1 rainfall days, and 6.89" (175mm) of precipitation is accumulated.
When it does not snow in Fontana?
In Fontana, snow does not fall in January, March through December.
How many days does it snow in Fontana?
In Fontana, during the entire year, snow falls for 0.1 days.
What is the most humid month in Fontana?
February, March and May, with an average relative humidity of 52%, are most humid months in Fontana, California.
What is the rainiest month in Fontana?
The month with the most rainfall in Fontana is February, when the rain falls for 6.2 days and typically aggregates up to 1.57" (40mm) of precipitation.
When does it snow in Fontana?
February is the only month when snow falls.
What is the snowiest month in Fontana?
The month with the most snowfall days in Fontana is February, when snow falls for 0.1 days.
When is Daylight Saving Time (DST) in Fontana?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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 Fontana?
The month with the least rainfall in Fontana is June, when the rain falls for 1.2 days and typically collects 0.04" (1mm) of precipitation.
When are the longest days in Fontana?
With an average of 14h and 24min of daylight, June has the longest days of the year in Fontana.
What is the month with the most sunshine in Fontana?
The months with the most sunshine in Fontana are June through August, with an average of 12.1h of sunshine.
When is the highest UV index in Fontana?
The months with the highest UV index in Fontana are July and August, with an average maximum UV index of 7.
What is the hottest time of year in Fontana?
With an average high-temperature of 92.1°F (33.4°C) and an average low-temperature of 67.3°F (19.6°C), August is the warmest month.
What is the least humid month in Fontana?
The least humid month in Fontana is August, with an average relative humidity of 39%.
What part of the year is the coldest in Fontana?
Fontana's coldest month, December, registers temperatures that range from a high of 60.8°F (16°C) to a low of 44.2°F (6.8°C).
What is the month with the shortest days in Fontana?
With an average of 9h and 54min of daylight, December has the shortest days of the year in Fontana.
What is the month with the least sunshine in Fontana?
The month with the least sunshine is December, with an average of 6.9h of sunshine.
What is the month with the lowest UV index in Fontana?
December is the month with the lowest UV index, with an average maximum UV index of 3.
Average temperature
Fontana, CA
The warmest month (with the highest average high temperature) is August (92.1°F).
The month with the lowest average high temperature is December (60.8°F).
The month with the highest average low temperature is August (67.3°F).
The coldest months (with the lowest average low temperature) are February and December (44.2°F).
Average pressure
Fontana, CA
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.04"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.9"Hg - Average pressure in June:
29.85"Hg
- Average pressure in July:
29.88"Hg - Average pressure in August:
29.87"Hg - Average pressure in September:
29.87"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 (29.85"Hg).
Average wind speed
Fontana, CA
- Average wind speed in January:
5.5mph - Average wind speed in February:
5.2mph - Average wind speed in March:
5.4mph - Average wind speed in April:
6mph - Average wind speed in May:
6mph - Average wind speed in June:
5.6mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
4.8mph - Average wind speed in September:
4.5mph - Average wind speed in October:
4.9mph - Average wind speed in November:
5.2mph - Average wind speed in December:
5.3mph
The windiest months (with the highest average wind speed) are April and May (6mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity
Fontana, CA
The months with the highest relative humidity are February, March and May (52%).
The month with the lowest relative humidity is August (39%).
Average rainfall
Fontana, CA
- Average rainfall in January:
1.02" - Average rainfall in February:
1.57" - Average rainfall in March:
0.75" - Average rainfall in April:
0.63" - Average rainfall in May:
0.2" - Average rainfall in June:
0.04"
The wettest month (with the highest rainfall) is February (1.57").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days
Fontana, CA
- Average rainfall days in January:
5.6 days - Average rainfall days in February:
6.2 days - Average rainfall days in March:
7.5 days - Average rainfall days in April:
5.4 days - Average rainfall days in May:
3.6 days - Average rainfall days in June:
1.2 days
- Average rainfall days in July:
3.2 days - Average rainfall days in August:
1.7 days - Average rainfall days in September:
2.4 days - Average rainfall days in October:
2.2 days - Average rainfall days in November:
3.2 days - Average rainfall days in December:
5.9 days
The month with the highest number of rainy days is March (7.5 days).
The month with the least rainy days is June (1.2 days).
Average snowfall days
Fontana, 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
Fontana, 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:
7h and 0min - Average sunshine in March:
8h and 5min - Average sunshine in April:
11h and 2min - Average sunshine in May:
11h and 5min - Average sunshine in June:
12h and 1min
- Average sunshine in July:
12h and 1min - Average sunshine in August:
12h and 1min - Average sunshine in September:
10h and 4min - Average sunshine in October:
9h and 0min - Average sunshine in November:
7h and 2min - Average sunshine in December:
6h and 5min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days
Fontana, CA
- Average sunshine days in January:
24 days - Average sunshine days in February:
21.1 days - Average sunshine days in March:
23.5 days - Average sunshine days in April:
24.3 days - Average sunshine days in May:
26.3 days - Average sunshine days in June:
28.3 days
- Average sunshine days in July:
25.8 days - Average sunshine days in August:
27.2 days - Average sunshine days in September:
25.9 days - Average sunshine days in October:
28 days - Average sunshine days in November:
26.3 days - Average sunshine days in December:
23.8 days
The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is February (21.1 days).
Average UV index
Fontana, 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
Fontana, CA
The months with the most cloud cover are February, March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 4).
Average visibility
Fontana, 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).
Fontana, California, USA
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