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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
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, is a freezing cold winter month in Riverside, Iowa, with an average temperature varying between 28.4°F (-2°C) and 16.2°F (-8.8°C). Riverside's coldest temperatures are experienced in January, with average high temperatures of 28.4°F (-2°C) and lows of 16.2°F (-8.8°C). Weather in January »
Weather in February
February, the last month of the winter in Riverside, is an icy month, with an average temperature varying between 19.4°F (-7°C) and 32.5°F (0.3°C). The beginning of February reveals an average high-temperature of a wintry 32.5°F (0.3°C), showing minimal deviation from the previous month. Weather in February »
Weather in March
March, the first month of the spring in Riverside, is a frosty month, with an average temperature varying between 32.5°F (0.3°C) and 46.9°F (8.3°C). Riverside in March showcases a distinct temperature shift, moving from an average high of an icy 32.5°F (0.3°C) in February to a frosty 46.9°F (8.3°C). Weather in March »
Weather in April
April in Riverside, Iowa, is a moderate spring month, with an average temperature ranging between min 42.4°F (5.8°C) and max 59.4°F (15.2°C). As Riverside, Iowa, welcomes April, the average high-temperature sees a rise, transitioning from a frosty 46.9°F (8.3°C) in March to a mild 59.4°F (15.2°C). Weather in April »
Weather in May
May, the last month of the spring in Riverside, is an agreeable month, with an average temperature ranging between min 53.6°F (12°C) and max 69.8°F (21°C). As April transitions into May, a change in temperatures is observed, with average highs moving from a refreshing 59.4°F (15.2°C) to an agreeable 69.8°F (21°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Riverside, Iowa, with an average temperature ranging between max 79.2°F (26.2°C) and min 62.8°F (17.1°C). Riverside's weather in June shows a rise in the average high-temperature, moving up from May's agreeable 69.8°F (21°C) to a warm 79.2°F (26.2°C). Weather in June »
Weather in July
July, like June, in Riverside, Iowa, is another warm summer month, with an average temperature fluctuating between 81.7°F (27.6°C) and 64.9°F (18.3°C). Riverside experiences its highest average temperatures in July, reaching a peak of 81.7°F (27.6°C) and a minimum of 64.9°F (18.3°C). In July, the average heat index is calculated to be a hot 89.6°F (32°C). Weather in July »
Weather in August
August, the last month of the summer in Riverside, is also a moderately hot month, with an average temperature varying between 63°F (17.2°C) and 81.1°F (27.3°C). August's commencement is accompanied by an average high-temperature of a still warm 81.1°F (27.3°C), diverging marginally from July's 81.7°F (27.6°C). Weather in August »
Weather in September
September, the first month of the autumn in Riverside, is still a warm month, with an average temperature fluctuating between 75.4°F (24.1°C) and 56.3°F (13.5°C). Start of September brings a slight shift in the average high-temperature, dipping a bit from August's warm 81.1°F (27.3°C) to a still moderately hot 75.4°F (24.1°C). Weather in September »
Weather in October
October, like September, in Riverside, Iowa, is another refreshing autumn month, with temperature in the range of an average high of 61.5°F (16.4°C) and an average low of 45.1°F (7.3°C). The onset of October entails a temperature shift, as the average high-temperature decreases from a moderately hot 75.4°F (24.1°C) in September to a comfortable 61.5°F (16.4°C). Weather in October »
Weather in November
November, the last month of the autumn in Riverside, is also a frosty month, with an average temperature varying between 47.1°F (8.4°C) and 33.6°F (0.9°C). November comes with a decrease in the average high-temperature, falling from an enjoyable 61.5°F (16.4°C) in October to a frosty 47.1°F (8.4°C). Weather in November »
Weather in December
December, the first month of the winter in Riverside, is still a cold month, with an average temperature ranging between max 34.5°F (1.4°C) and min 23.2°F (-4.9°C). December brings a drop in Riverside's average high-temperature, falling from a frosty 47.1°F (8.4°C) in November to a cold 34.5°F (1.4°C). Weather in December »
Updated: Feb 12, 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
What are the coldest months in Riverside?
Riverside's coldest temperatures are experienced in January, with average high temperatures of 28.4°F (-2°C) and lows of 16.2°F (-8.8°C).
What are the most humid months in Riverside?
The months with the highest humidity are January and July, with an average relative humidity of 83%.
What is the driest month in Riverside?
The month with the least rainfall in Riverside, Iowa, is January, when the rain falls for 5.4 days and typically collects 1.26" (32mm) of precipitation.
How many days does it rain in Riverside?
Throughout the year, in Riverside, there are 144.7 rainfall days, and 30.16" (766mm) of precipitation is accumulated.
When does it snow in Riverside?
January through April, October through December are months with snowfall.
How many days does it snow in Riverside?
In Riverside, Iowa, during the entire year, snow falls for 34.4 days and aggregates up to 14.61" (371mm) of snow.
What is the month with the least sunshine in Riverside?
The month with the least sunshine in Riverside, Iowa, is January, with an average of 4.1h of sunshine.
What is the month with the lowest UV index in Riverside?
January and December, with an average maximum UV index of 1, are months with the lowest UV index.
When does it snow the most in Riverside?
The month with the most snowfall in Riverside is February, when snow falls for 8.8 days and typically aggregates up to 4.57" (116mm) of snow.
When is Daylight Saving Time (DST) in Riverside?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Riverside, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
What is the rainiest month in Riverside?
May is the month with the most rainfall in Riverside, Iowa. Rain falls for 19.2 days and accumulates 4.45" (113mm) of precipitation.
When it does not snow in Riverside?
In Riverside, Iowa, snow does not fall in May through September.
When are the longest days in Riverside?
With an average of 15h and 6min of daylight, June has the longest days of the year in Riverside, Iowa.
When is the highest UV index in Riverside?
June and July, with an average maximum UV index of 6, are months with the highest UV index.
What are the warmest months in Riverside?
Riverside witnesses the warmest weather in July, with temperatures averaging a high of 81.7°F (27.6°C) and a low of 64.9°F (18.3°C).
What month has the most sunshine in Riverside?
July has the most sunshine of the year, with an average of 10.1h of sunshine.
What is the least humid month in Riverside?
With an average relative humidity of 71%, October is the least humid month.
What is the month with the shortest days in Riverside?
December has the shortest days of the year in Riverside, with an average of 9h and 12min of daylight.
Average temperature
Riverside, IA
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (28.4°F).
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure
Riverside, IA
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.9"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed
Riverside, IA
- Average wind speed in January:
10.7mph - Average wind speed in February:
10.5mph - Average wind speed in March:
10.4mph - Average wind speed in April:
10.6mph - Average wind speed in May:
9mph - Average wind speed in June:
7.9mph
- Average wind speed in July:
6.9mph - Average wind speed in August:
6.9mph - Average wind speed in September:
7.9mph - Average wind speed in October:
9.6mph - Average wind speed in November:
10.4mph - Average wind speed in December:
10mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).
Average humidity
Riverside, IA
The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Riverside, IA
- Average rainfall in January:
1.26" - Average rainfall in February:
1.34" - Average rainfall in March:
2.09" - Average rainfall in April:
3.19" - Average rainfall in May:
4.45" - Average rainfall in June:
4.21"
- Average rainfall in July:
3.11" - Average rainfall in August:
2.2" - Average rainfall in September:
2.64" - Average rainfall in October:
2.52" - Average rainfall in November:
1.73" - Average rainfall in December:
1.42"
The wettest month (with the highest rainfall) is May (4.45").
The driest month (with the least rainfall) is January (1.26").
Average rainfall days
Riverside, IA
- Average rainfall days in January:
5.4 days - Average rainfall days in February:
4.8 days - Average rainfall days in March:
11.5 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
19.2 days - Average rainfall days in June:
18.1 days
- Average rainfall days in July:
17.1 days - Average rainfall days in August:
14 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
11.5 days - Average rainfall days in November:
9 days - Average rainfall days in December:
6.8 days
The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is February (4.8 days).
Average snowfall
Riverside, IA
The month with the highest snowfall is February (4.57").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Riverside, IA
- Average snowfall days in January:
9.8 days - Average snowfall days in February:
8.8 days - Average snowfall days in March:
5.3 days - Average snowfall days in April:
1.1 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:
0.4 days - Average snowfall days in November:
2.1 days - Average snowfall days in December:
6.9 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Riverside, IA
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 3min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
4h and 1min - Average sunshine in February:
4h and 2min - Average sunshine in March:
6h and 3min - Average sunshine in April:
7h and 5min - Average sunshine in May:
8h and 5min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 2min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days
Riverside, IA
- Average sunshine days in January:
17.6 days - Average sunshine days in February:
15.1 days - Average sunshine days in March:
14.7 days - Average sunshine days in April:
12.3 days - Average sunshine days in May:
9.5 days - Average sunshine days in June:
9.3 days
- Average sunshine days in July:
10.1 days - Average sunshine days in August:
13.7 days - Average sunshine days in September:
16 days - Average sunshine days in October:
17.4 days - Average sunshine days in November:
18.2 days - Average sunshine days in December:
17.9 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is June (9.3 days).
Average UV index
Riverside, IA
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Riverside, IA
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility
Riverside, IA
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Riverside, Iowa, USA
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