Climate and monthly weather forecastNorth Fontana, CA
Climate and monthly weather forecast
Weather in January
January, like December, in North Fontana, California, is another comfortable winter month, with temperature in the range of an average high of 63.1°F (17.3°C) and an average low of 45.3°F (7.4°C). North Fontana records a slight change with January's average high-temperatures adjusting to a still comfortable 63.1°F (17.3°C) from December's 60.8°F (16°C). Weather in January »Weather in February
February, the last month of the winter in North Fontana, is also an enjoyable month, with an average temperature varying between 44.2°F (6.8°C) and 63.3°F (17.4°C). February brings a marginal elevation to a still enjoyable 63.3°F (17.4°C) from January's 63.1°F (17.3°C) in North Fontana's average high-temperatures. Weather in February »Weather in March
The first month of the spring, March, is still a comfortable month in North Fontana, California, with an average temperature varying between 66.7°F (19.3°C) and 46°F (7.8°C). North Fontana observes a minor difference in average high-temperatures between February's 63.3°F (17.4°C) and March's 66.7°F (19.3°C). Weather in March »Weather in April
April is a pleasant spring month in North Fontana, California, with temperature in the range of an average low of 49.6°F (9.8°C) and an average high of 72°F (22.2°C). North Fontana's April reports an average high-temperature of a pleasant 72°F (22.2°C), exhibiting a minor difference from March. Weather in April »Weather in May
The last month of the spring, May, is a moderately hot month in North Fontana, California, with an average temperature fluctuating between 76.6°F (24.8°C) and 54°F (12.2°C). May's onset records a minor alteration in the average high-temperature to a warm 76.6°F (24.8°C) from April's 72°F (22.2°C). Weather in May »Weather in June
The first month of the summer, June, is still a warm month in North Fontana, California, with an average temperature varying between 85.3°F (29.6°C) and 59.2°F (15.1°C). The arrival of June brings a soft temperature shift, with the average high-temperature nudging from a moderately hot 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 in North Fontana, California, is a hot summer month, with an average temperature varying between 65.8°F (18.8°C) and 91°F (32.8°C). The shift into July is accompanied by a modest temperature increase, with the average high-temperature edging up from a warm 85.3°F (29.6°C) in June to a tropical 91°F (32.8°C). Weather in July »Weather in August
The last month of the summer, August, is another hot month in North Fontana, California, with an average temperature ranging between max 92.1°F (33.4°C) and min 67.3°F (19.6°C). August, recognised by an average high temperature of 92.1°F (33.4°C) and a low of 67.3°F (19.6°C), is North Fontana's warmest month. Weather in August »Weather in September
September, the first month of the autumn in North Fontana, is still a hot month, with an average temperature ranging between min 63.9°F (17.7°C) and max 88.3°F (31.3°C). In September, North Fontana experiences a minor shift in meteorological conditions with average high-temperatures marked at a still hot 88.3°F (31.3°C), closely mirroring the climate in August. Weather in September »Weather in October
October, like September, in North Fontana, California, is a moderately hot autumn month, with an average temperature varying between 78.8°F (26°C) and 57.2°F (14°C). In October, the average high-temperature decreases from a hot 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 North Fontana, is also an agreeable month, with temperature in the range of an average high of 69.3°F (20.7°C) and an average low of 50.5°F (10.3°C). In November, the average high-temperature goes from a moderately hot 78.8°F (26°C) in October to a pleasant 69.3°F (20.7°C). Weather in November »Weather in December
December, the first month of the winter in North Fontana, is still a refreshing month, with an average temperature fluctuating between 60.8°F (16°C) and 44.2°F (6.8°C). December is North Fontana's coldest month, registering average high temperatures of 60.8°F (16°C) and lows of 44.2°F (6.8°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
North 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
North 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
North 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
North 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
North 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
North 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
North 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
North Fontana, CA
- Average daylight in January:
10h and 12min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 6min - Average daylight in May:
14h and 0min - Average daylight in June:
14h and 24min
- Average daylight in July:
14h and 12min - Average daylight in August:
13h and 24min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 24min - Average daylight in December:
9h and 54min
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 54min - Average sunshine in April:
11h and 18min - Average sunshine in May:
11h and 48min - Average sunshine in June:
12h and 6min
- Average sunshine in July:
12h and 6min - Average sunshine in August:
12h and 6min - Average sunshine in September:
10h and 42min - Average sunshine in October:
9h and 0min - Average sunshine in November:
7h and 18min - Average sunshine in December:
6h and 54min
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
North 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
North 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
North 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
North 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).





