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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, like December, is another mild winter month in Riverdale Park, California, with an average temperature varying between 41.9°F (5.5°C) and 57.7°F (14.3°C). January ushers in an average high-temperature of a still moderate 57.7°F (14.3°C), aligning closely with the preceding month. Weather in January »
Weather in February
February, the last month of the winter in Riverdale Park, is a refreshing month, with temperature in the range of an average high of 61.2°F (16.2°C) and an average low of 42.3°F (5.7°C). February commences with an average high-temperature of an enjoyable 61.2°F (16.2°C), showing little deviation from January's 57.7°F (14.3°C). Weather in February »
Weather in March
March, the first month of the spring in Riverdale Park, is also an enjoyable month, with temperature in the range of an average low of 44.2°F (6.8°C) and an average high of 65.7°F (18.7°C). March brings an average high-temperature of a still comfortable 65.7°F (18.7°C), showing a slight difference from February's 61.2°F (16.2°C). Weather in March »
Weather in April
April in Riverdale Park, California, is an agreeable spring month, with an average temperature varying between 72.1°F (22.3°C) and 47.7°F (8.7°C). The shift from March to April is marked by a slight increase in the average high-temperature, moving from a comfortable 65.7°F (18.7°C) to a pleasant 72.1°F (22.3°C). Weather in April »
Weather in May
May, the last month of the spring in Riverdale Park, is a moderately hot month, with an average temperature varying between 80.1°F (26.7°C) and 52.7°F (11.5°C). May's onset witnesses a minor shift in the average high-temperature, moving from an agreeable 72.1°F (22.3°C) in April to a warm 80.1°F (26.7°C). Weather in May »
Weather in June
June, the first month of the summer in Riverdale Park, is a tropical month, with an average temperature varying between 91°F (32.8°C) and 59.2°F (15.1°C). With the onset of June, the average high-temperature slightly shifts from May's moderately hot 80.1°F (26.7°C) to a tropical 91°F (32.8°C). Weather in June »
Weather in July
July in Riverdale Park, California, is a very hot summer month, with an average temperature varying between 62.1°F (16.7°C) and 97.7°F (36.5°C). The month of July sees the highest average temperatures, reaching 97.7°F (36.5°C) at the peak and 62.1°F (16.7°C) at the low. Weather in July »
Weather in August
August, the last month of the summer in Riverdale Park, is another torrid month, with an average temperature ranging between max 96.4°F (35.8°C) and min 61.7°F (16.5°C). Riverdale Park experiences a transition to a still torrid 96.4°F (35.8°C) in average high-temperatures with the arrival of August, not greatly differing from July's 97.7°F (36.5°C). Weather in August »
Weather in September
September, the first month of the autumn in Riverdale Park, is also a hot month, with an average temperature varying between 59.9°F (15.5°C) and 90.9°F (32.7°C). September brings a slight decrease in the average high-temperature, shifting from a sweltering 96.4°F (35.8°C) in August to a hot 90.9°F (32.7°C). Weather in September »
Weather in October
October, the same as September, is a moderately hot autumn month in Riverdale Park, California, with an average temperature fluctuating between 54.5°F (12.5°C) and 77.9°F (25.5°C). October is characterized by a reduction in the average high-temperature, from a hot 90.9°F (32.7°C) in September to a warm 77.9°F (25.5°C). Weather in October »
Weather in November
The last month of the autumn, November, is another comfortable month in Riverdale Park, California, with an average temperature fluctuating between 46.9°F (8.3°C) and 65.3°F (18.5°C). The onset of November entails a temperature shift, as the average high-temperature decreases from a warm 77.9°F (25.5°C) in October to an enjoyable 65.3°F (18.5°C). Weather in November »
Weather in December
December, the first month of the winter in Riverdale Park, is still a mild month, with an average temperature fluctuating between 55.6°F (13.1°C) and 41.9°F (5.5°C). December tends to be the coldest month, with temperatures averaging a daily high of 55.6°F (13.1°C) and a low of 41.9°F (5.5°C). Weather in December »
[Resources]Frequently asked questions
What is the most humid month in Riverdale Park?
January is the most humid month in Riverdale Park, with an average relative humidity of 72%.
How much does it rain in Riverdale Park?
Throughout the year, there are 54.3 rainfall days, and 6.54" (166mm) of precipitation is accumulated.
What is the month with the lowest UV index in Riverdale Park?
The months with the lowest UV index in Riverdale Park are January, February, November and December, with an average maximum UV index of 3.
What is the rainiest month in Riverdale Park?
March is the month with the most rainfall. Rain falls for 10.3 days and accumulates 1.3" (33mm) of precipitation.
When is Daylight Saving Time (DST) in Riverdale Park?
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.
When are the longest days in Riverdale Park?
With an average of 14h and 42min of daylight, June has the longest days of the year.
What is the month with the highest UV index in Riverdale Park?
The months with the highest UV index in Riverdale Park, California, are June through August, with an average maximum UV index of 7.
What month is the hottest in Riverdale Park?
July, with its high-temperature average of 97.7°F (36.5°C) and a low-temperature average of 62.1°F (16.7°C), is the warmest month in Riverdale Park.
What is the least humid month in Riverdale Park?
July is the least humid month in Riverdale Park, California, with an average relative humidity of 37%.
What is the driest month in Riverdale Park?
The months with the least rainfall in Riverdale Park, California, are July and August Rain falls for 1.3 days and accumulates 0.04" (1mm) of rain.
What month has the most sunshine in Riverdale Park?
With an average of 12.1h of sunshine, July has the most sunshine of the year in Riverdale Park, California.
What part of the year is the coldest in Riverdale Park?
In Riverdale Park, December registers the lowest temperatures, averaging 55.6°F (13.1°C) at the peak and 41.9°F (5.5°C) at the lowest.
What is the month with the shortest days in Riverdale Park?
The month with the shortest days in Riverdale Park is December, with an average of 9h and 36min of daylight.
What is the month with the least sunshine in Riverdale Park?
December has the least sunshine of the year in Riverdale Park, California, with an average of 6h of sunshine.
Average temperature
Riverdale Park, CA
The warmest month (with the highest average high temperature) is July (97.7°F).
The month with the lowest average high temperature is December (55.6°F).
The month with the highest average low temperature is July (62.1°F).
The coldest months (with the lowest average low temperature) are January and December (41.9°F).
Average pressure
Riverdale Park, CA
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
30.02"Hg - Average pressure in May:
29.96"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:
29.93"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Riverdale Park, CA
- Average wind speed in January:
5.3mph - Average wind speed in February:
6.3mph - Average wind speed in March:
6.2mph - Average wind speed in April:
6.5mph - Average wind speed in May:
6.7mph - Average wind speed in June:
7.3mph
- Average wind speed in July:
6.9mph - Average wind speed in August:
6.5mph - Average wind speed in September:
5.8mph - Average wind speed in October:
5.7mph - Average wind speed in November:
5.2mph - Average wind speed in December:
5.7mph
The windiest month (with the highest average wind speed) is June (7.3mph).
The calmest month (with the lowest average wind speed) is November (5.2mph).
Average humidity
Riverdale Park, CA
The month with the highest relative humidity is January (72%).
The month with the lowest relative humidity is July (37%).
Average rainfall
Riverdale Park, CA
- Average rainfall in January:
0.75" - Average rainfall in February:
0.94" - Average rainfall in March:
1.3" - Average rainfall in April:
0.67" - Average rainfall in May:
0.39" - Average rainfall in June:
0.08"
- Average rainfall in July:
0.04" - Average rainfall in August:
0.04" - Average rainfall in September:
0.08" - Average rainfall in October:
0.35" - Average rainfall in November:
0.67" - Average rainfall in December:
1.22"
The wettest month (with the highest rainfall) is March (1.3").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days
Riverdale Park, CA
- Average rainfall days in January:
5.9 days - Average rainfall days in February:
6.4 days - Average rainfall days in March:
10.3 days - Average rainfall days in April:
7.4 days - Average rainfall days in May:
3.6 days - Average rainfall days in June:
1 days
- Average rainfall days in July:
1.3 days - Average rainfall days in August:
0.9 days - Average rainfall days in September:
1.6 days - Average rainfall days in October:
2.5 days - Average rainfall days in November:
5.2 days - Average rainfall days in December:
8.2 days
The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is August (0.9 days).
Average daylight / Average sunshine
Riverdale Park, CA
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 4min
- Average daylight in July:
14h and 3min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January:
6h and 2min - Average sunshine in February:
6h and 2min - Average sunshine in March:
8h and 1min - Average sunshine in April:
10h and 3min - Average sunshine in May:
11h and 2min - Average sunshine in June:
11h and 5min
- Average sunshine in July:
12h and 1min - Average sunshine in August:
12h and 0min - Average sunshine in September:
11h and 3min - Average sunshine in October:
7h and 2min - Average sunshine in November:
6h and 4min - Average sunshine in December:
6h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days
Riverdale Park, CA
- Average sunshine days in January:
24.1 days - Average sunshine days in February:
20.8 days - Average sunshine days in March:
19.6 days - Average sunshine days in April:
21.7 days - Average sunshine days in May:
26.7 days - Average sunshine days in June:
28.4 days
- Average sunshine days in July:
28.3 days - Average sunshine days in August:
29.2 days - Average sunshine days in September:
27.1 days - Average sunshine days in October:
27.7 days - Average sunshine days in November:
24.1 days - Average sunshine days in December:
22 days
The month with the most sunshine days is August (29.2 days).
The month with the least sunshine days is March (19.6 days).
Average UV index
Riverdale Park, CA
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover
Riverdale Park, CA
The month with the most cloud cover is March (Cloud cover 33).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility
Riverdale Park, 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).
Riverdale Park, California, USA
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