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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, the same as December, in Shell Rock, Iowa, is a freezing cold winter month, with an average temperature varying between 23.9°F (-4.5°C) and 11.3°F (-11.5°C). The coldest month is January, with an average high-temperature of 23.9°F (-4.5°C) and an average low-temperature of 11.3°F (-11.5°C). Weather in January »
Weather in February
The last month of the winter, February, is also a subzero cold month in Shell Rock, Iowa, with an average temperature fluctuating between 27.7°F (-2.4°C) and 14.5°F (-9.7°C). The average high-temperature for February is a still subzero cold 27.7°F (-2.4°C), closely aligning with the temperature of the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Shell Rock, Iowa, with an average temperature varying between 28.9°F (-1.7°C) and 43°F (6.1°C). Shell Rock's March weather is marked by a distinct rise in high-temperatures, escalating from a freezing cold 27.7°F (-2.4°C) in February to a chilly 43°F (6.1°C). Weather in March »
Weather in April
April in Shell Rock, Iowa, is a moderate spring month, with an average temperature fluctuating between 39.7°F (4.3°C) and 56.1°F (13.4°C). An increase in the average high-temperature marks April, moving from March's chilly 43°F (6.1°C) to a mild 56.1°F (13.4°C). Weather in April »
Weather in May
The last month of the spring, May, is a refreshing month in Shell Rock, Iowa, with an average temperature fluctuating between 67.8°F (19.9°C) and 51.4°F (10.8°C). May's arrival sees a rise in the average high-temperature, jumping from April's 56.1°F (13.4°C) to a still refreshing 67.8°F (19.9°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Shell Rock, Iowa, with temperature in the range of an average low of 60.8°F (16°C) and an average high of 77°F (25°C). June's arrival is marked by an increase in the average high-temperature, moving from a refreshing 67.8°F (19.9°C) in May to a moderately hot 77°F (25°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Shell Rock, Iowa, with an average temperature varying between 79.5°F (26.4°C) and 63°F (17.2°C). Shell Rock registers the highest average temperatures during the month of July, with peaks of 79.5°F (26.4°C) and lows of 63°F (17.2°C). Weather in July »
Weather in August
August, the last month of the summer in Shell Rock, is another warm month, with temperature in the range of an average low of 60.4°F (15.8°C) and an average high of 78.3°F (25.7°C). Entering August, Shell Rock's average high-temperature reads a still moderately hot 78.3°F (25.7°C), indicating a close resemblance to the previous month's climate. Weather in August »
Weather in September
The first month of the autumn, September, is also an agreeable month in Shell Rock, Iowa, with an average temperature fluctuating between 54°F (12.2°C) and 72.9°F (22.7°C). The average high-temperature shows a slight dip in September, from August's warm 78.3°F (25.7°C) to a pleasant 72.9°F (22.7°C). Weather in September »
Weather in October
October, like September, is a moderate autumn month in Shell Rock, Iowa, with temperature in the range of an average low of 43°F (6.1°C) and an average high of 58.1°F (14.5°C). Shell Rock's weather in October is characterized by a distinct drop in the average high-temperature, reducing from an agreeable 72.9°F (22.7°C) in September to a moderate 58.1°F (14.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Shell Rock, is also a frosty month, with an average temperature fluctuating between 43.5°F (6.4°C) and 30.9°F (-0.6°C). With the onset of November, Shell Rock experiences a noticeable temperature shift, with the average high-temperature receding from a moderate 58.1°F (14.5°C) in October to a frosty 43.5°F (6.4°C). Weather in November »
Weather in December
December, the first month of the winter in Shell Rock, is also a subzero cold month, with an average temperature fluctuating between 19.8°F (-6.8°C) and 30.2°F (-1°C). The onset of December introduces a moderate change in Shell Rock's weather, with average high-temperatures falling from November's frosty 43.5°F (6.4°C) to a freezing cold 30.2°F (-1°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 is the coldest time of year in Shell Rock?
January is the coldest month in Shell Rock, with the temperature often reaching an average high of 23.9°F (-4.5°C) and an average low of 11.3°F (-11.5°C).
What is the most humid month in Shell Rock?
January is the most humid month, with an average relative humidity of 87%.
What is the driest month in Shell Rock?
The month with the least rainfall is January, when the rain falls for 4.2 days and typically collects 1.02" (26mm) of precipitation.
How much does it rain in Shell Rock?
Throughout the year, there are 138.7 rainfall days, and 28.78" (731mm) of precipitation is accumulated.
When does it snow in Shell Rock?
Months with snowfall in Shell Rock, Iowa, are January through May, October through December.
How many days does it snow in Shell Rock?
In Shell Rock, Iowa, during the entire year, snow falls for 43.6 days and aggregates up to 19.25" (489mm) of snow.
What is the month with the least sunshine in Shell Rock?
The month with the least sunshine is January, with an average of 3.8h of sunshine.
What are the months with the lowest UV index in Shell Rock?
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Shell Rock, Iowa.
When does it snow the most in Shell Rock?
The month with the most snowfall is February, when snow falls for 10 days and typically aggregates up to 5.08" (129mm) of snow.
When is Daylight Saving Time (DST) in Shell Rock?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Shell Rock, Iowa, 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 Shell Rock?
The month with the most rainfall in Shell Rock is June, when the rain falls for 19.4 days and typically aggregates up to 4.29" (109mm) of precipitation.
When it does not snow in Shell Rock?
In Shell Rock, snow does not fall in June through September.
When are the longest days in Shell Rock?
With an average of 15h and 18min of daylight, June has the longest days of the year in Shell Rock.
When is the highest UV index in Shell Rock?
With an average maximum UV index of 6, June is the month with the highest UV index in Shell Rock, Iowa.
What month is the hottest in Shell Rock?
July is the month when Shell Rock sees the average highest temperatures, with a high of 79.5°F (26.4°C) and a low of 63°F (17.2°C).
What month has the most sunshine in Shell Rock?
With an average of 9.9h of sunshine, July has the most sunshine of the year.
What is the least humid month in Shell Rock?
October is the least humid month in Shell Rock, Iowa, with an average relative humidity of 72%.
What is the month with the shortest days in Shell Rock?
December has the shortest days of the year, with an average of 9h and 6min of daylight.
Average temperature
Shell Rock, IA
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (23.9°F).
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).
Average pressure
Shell Rock, IA
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.89"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.08"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 (29.89"Hg).
Average wind speed
Shell Rock, IA
- Average wind speed in January:
10.5mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.4mph - Average wind speed in April:
10.7mph - Average wind speed in May:
9.2mph - Average wind speed in June:
8.1mph
- Average wind speed in July:
7.1mph - Average wind speed in August:
7mph - Average wind speed in September:
8.2mph - Average wind speed in October:
9.8mph - Average wind speed in November:
10.4mph - Average wind speed in December:
10mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity
Shell Rock, IA
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Shell Rock, IA
- Average rainfall in January:
1.02" - Average rainfall in February:
1.18" - Average rainfall in March:
1.69" - Average rainfall in April:
3.11" - Average rainfall in May:
4.17" - Average rainfall in June:
4.29"
- Average rainfall in July:
2.95" - Average rainfall in August:
2.36" - Average rainfall in September:
2.4" - Average rainfall in October:
2.68" - Average rainfall in November:
1.38" - Average rainfall in December:
1.54"
The wettest month (with the highest rainfall) is June (4.29").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days
Shell Rock, IA
- Average rainfall days in January:
4.2 days - Average rainfall days in February:
3.9 days - Average rainfall days in March:
9.6 days - Average rainfall days in April:
14.7 days - Average rainfall days in May:
18.7 days - Average rainfall days in June:
19.4 days
- Average rainfall days in July:
16.3 days - Average rainfall days in August:
14.5 days - Average rainfall days in September:
12.8 days - Average rainfall days in October:
10.7 days - Average rainfall days in November:
8.2 days - Average rainfall days in December:
5.7 days
The month with the highest number of rainy days is June (19.4 days).
The month with the least rainy days is February (3.9 days).
Average snowfall
Shell Rock, IA
- Average snowfall in January:
4.33" - Average snowfall in February:
5.08" - Average snowfall in March:
2.36" - Average snowfall in April:
1.89" - Average snowfall in May:
0.2" - Average snowfall in June:
0"
The month with the highest snowfall is February (5.08").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Shell Rock, IA
- Average snowfall days in January:
10.5 days - Average snowfall days in February:
10 days - Average snowfall days in March:
6.3 days - Average snowfall days in April:
2.1 days - Average snowfall days in May:
0.2 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:
1.2 days - Average snowfall days in November:
3.8 days - Average snowfall days in December:
9.5 days
The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Shell Rock, IA
- Average daylight in January:
9h and 3min - 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 4min - Average daylight in June:
15h and 2min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - 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 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
3h and 5min - Average sunshine in February:
4h and 0min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 3min - Average sunshine in May:
8h and 3min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 2min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days
Shell Rock, IA
- Average sunshine days in January:
17.2 days - Average sunshine days in February:
14.9 days - Average sunshine days in March:
15.4 days - Average sunshine days in April:
11.8 days - Average sunshine days in May:
10.3 days - Average sunshine days in June:
9.2 days
- Average sunshine days in July:
10.3 days - Average sunshine days in August:
13.1 days - Average sunshine days in September:
15.5 days - Average sunshine days in October:
17.8 days - Average sunshine days in November:
17.8 days - Average sunshine days in December:
17.6 days
The months with the most sunshine days are October and November (17.8 days).
The month with the least sunshine days is June (9.2 days).
Average UV index
Shell Rock, IA
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Shell Rock, IA
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility
Shell Rock, IA
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Shell Rock, Iowa, USA
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