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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 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 Norco, California, with an average temperature ranging between max 66.2°F (19°C) and min 48°F (8.9°C). Norco notes an average high-temperature of a still enjoyable 66.2°F (19°C) in January, hardly diverging from December. Weather in January »
Weather in February
February, the last month of the winter in Norco, is another comfortable month, with temperature in the range of an average low of 47.1°F (8.4°C) and an average high of 65.3°F (18.5°C). The average high-temperature in February, at a still enjoyable 65.3°F (18.5°C), reveals a modest deviation from January's 66.2°F (19°C). Weather in February »
Weather in March
March, the first month of the spring in Norco, is an agreeable month, with an average temperature fluctuating between 48.6°F (9.2°C) and 68.9°F (20.5°C). Norco notes an average high-temperature of a pleasant 68.9°F (20.5°C) in March, hardly diverging from February. Weather in March »
Weather in April
April, like March, is another pleasant spring month in Norco, California, with an average temperature fluctuating between 51.3°F (10.7°C) and 72.5°F (22.5°C). The ushering in of April brings an average high-temperature of a still agreeable 72.5°F (22.5°C), closely mirroring the 68.9°F (20.5°C) of March. Weather in April »
Weather in May
The last month of the spring, May, is a moderately hot month in Norco, California, with an average temperature fluctuating between 54.9°F (12.7°C) and 75.4°F (24.1°C). May experiences an average high-temperature of a warm 75.4°F (24.1°C), barely different from April's 72.5°F (22.5°C). Weather in May »
Weather in June
June, the first month of the summer in Norco, is still a warm month, with an average temperature ranging between min 58.6°F (14.8°C) and max 82°F (27.8°C). Observing a minor shift, the average high-temperature during June adjusts from May's 75.4°F (24.1°C) to a still warm 82°F (27.8°C). Weather in June »
Weather in July
July is a tropical summer month in Norco, California, with temperature in the range of an average high of 88°F (31.1°C) and an average low of 64.2°F (17.9°C). A subtle rise in the average high-temperature is observed during July, adjusting from a warm 82°F (27.8°C) in June to a tropical 88°F (31.1°C). Weather in July »
Weather in August
August, the last month of the summer in Norco, is another tropical month, with an average temperature varying between 65.8°F (18.8°C) and 89.4°F (31.9°C). In Norco, August is identified by the highest average temperatures, reaching a peak of 89.4°F (31.9°C) and a low of 65.8°F (18.8°C). August's heat index is appraised at a tropical 93.2°F (34°C). Weather in August »
Weather in September
September, the first month of the autumn in Norco, is also a hot month, with an average temperature ranging between min 63.5°F (17.5°C) and max 86.9°F (30.5°C). Norco measures an average high-temperature of a still tropical 86.9°F (30.5°C) in September, nearly consistent with the preceding month. Weather in September »
Weather in October
October, the same as September, is a moderately hot autumn month in Norco, California, with an average temperature varying between 79.5°F (26.4°C) and 58.8°F (14.9°C). Norco records a mild change in average high-temperature during October, easing from a tropical 86.9°F (30.5°C) in September to a moderately hot 79.5°F (26.4°C). Weather in October »
Weather in November
November, the last month of the autumn in Norco, is another pleasant month, with an average temperature varying between 52.5°F (11.4°C) and 71.8°F (22.1°C). In November, the average high-temperature marginally drops from a warm 79.5°F (26.4°C) in October to an agreeable 71.8°F (22.1°C). Weather in November »
Weather in December
The first month of the winter, December, is still a refreshing month in Norco, California, with an average temperature varying between 63.5°F (17.5°C) and 46.9°F (8.3°C). December is the coldest month of the year, registering average temperatures as high as 63.5°F (17.5°C) and as low as 46.9°F (8.3°C). Weather in December »
Updated: Jun 23, 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
How much does it rain in Norco?
Throughout the year, there are 53.9 rainfall days, and 8.86" (225mm) of precipitation is accumulated.
What are the months with the lowest UV index?
January, February, November and December, with an average maximum UV index of 4, are months with the lowest UV index.
When is Daylight Saving Time (DST)?
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 most humid month?
May is the most humid month, with an average relative humidity of 60%.
What is the driest month?
June is the month with the least rainfall. Rain falls for 1.3 days and accumulates 0.04" (1mm) of precipitation.
When are the longest days?
The month with the longest days is June, with an average of 14h and 24min of daylight.
What are the months with the most sunshine?
The months with the most sunshine are July and August, with an average of 12.1h of sunshine.
What is the month with the highest UV index?
The months with the highest UV index in Norco, California, are July and August, with an average maximum UV index of 7.
What month is the hottest?
August brings the highest temperatures, with an average high of 89.4°F (31.9°C) and an average low of 65.8°F (18.8°C).
What is the least humid month?
With an average relative humidity of 48%, November is the least humid month.
What is the coldest month?
Norco records the coldest temperatures in December, averaging a high of 63.5°F (17.5°C) and a low of 46.9°F (8.3°C).
What is the wettest month?
The month with the most rainfall is December, when the rain falls for 6.5 days and typically aggregates up to 1.89" (48mm) of precipitation.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 54min of daylight.
What is the month with the least sunshine?
December has the least sunshine of the year, with an average of 6.7h of sunshine.
Average temperature
Norco, CA
The warmest month (with the highest average high temperature) is August (89.4°F).
The month with the lowest average high temperature is December (63.5°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 (46.9°F).
Average pressure
Norco, CA
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.04"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:
29.87"Hg
- Average pressure in July:
29.9"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 (29.87"Hg).
Average wind speed
Norco, CA
- Average wind speed in January:
5mph - Average wind speed in February:
4.8mph - Average wind speed in March:
4.8mph - Average wind speed in April:
5.4mph - Average wind speed in May:
5.4mph - Average wind speed in June:
5mph
- Average wind speed in July:
4.7mph - Average wind speed in August:
4.5mph - Average wind speed in September:
4.3mph - Average wind speed in October:
4.5mph - Average wind speed in November:
4.7mph - Average wind speed in December:
4.9mph
The windiest months (with the highest average wind speed) are April and May (5.4mph).
The calmest month (with the lowest average wind speed) is September (4.3mph).
Average humidity
Norco, CA
The month with the highest relative humidity is May (60%).
The month with the lowest relative humidity is November (48%).
Average rainfall
Norco, CA
- Average rainfall in January:
1.38" - Average rainfall in February:
1.85" - Average rainfall in March:
1.06" - Average rainfall in April:
0.67" - Average rainfall in May:
0.35" - Average rainfall in June:
0.04"
- Average rainfall in July:
0.2" - Average rainfall in August:
0.16" - Average rainfall in September:
0.12" - Average rainfall in October:
0.31" - Average rainfall in November:
0.83" - Average rainfall in December:
1.89"
The wettest month (with the highest rainfall) is December (1.89").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days
Norco, CA
- Average rainfall days in January:
5.3 days - Average rainfall days in February:
6.2 days - Average rainfall days in March:
8.2 days - Average rainfall days in April:
6.2 days - Average rainfall days in May:
4.5 days - Average rainfall days in June:
1.3 days
- Average rainfall days in July:
3.8 days - Average rainfall days in August:
1.7 days - Average rainfall days in September:
2.5 days - Average rainfall days in October:
3.5 days - Average rainfall days in November:
4.2 days - Average rainfall days in December:
6.5 days
The month with the highest number of rainy days is March (8.2 days).
The month with the least rainy days is June (1.3 days).
Average daylight / Average sunshine
Norco, 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:
13h and 5min - 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:
6h and 5min - Average sunshine in February:
6h and 5min - Average sunshine in March:
8h and 4min - Average sunshine in April:
11h and 0min - Average sunshine in May:
11h and 1min - Average sunshine in June:
12h and 0min
- 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:
8h and 4min - Average sunshine in November:
7h and 1min - Average sunshine in December:
6h and 4min
The months with the most sunshine are July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days
Norco, CA
- Average sunshine days in January:
24.6 days - Average sunshine days in February:
20.8 days - Average sunshine days in March:
21.7 days - Average sunshine days in April:
22.7 days - Average sunshine days in May:
23.9 days - Average sunshine days in June:
27.1 days
- Average sunshine days in July:
24.8 days - Average sunshine days in August:
26.1 days - Average sunshine days in September:
24.5 days - Average sunshine days in October:
25.3 days - Average sunshine days in November:
24.8 days - Average sunshine days in December:
23 days
The month with the most sunshine days is June (27.1 days).
The month with the least sunshine days is February (20.8 days).
Average UV index
Norco, CA
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover
Norco, CA
The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility
Norco, 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).
Norco, California, USA
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