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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 another subzero cold winter month in Norwalk, Iowa, with an average temperature ranging between min 15.1°F (-9.4°C) and max 28.2°F (-2.1°C). Norwalk's coldest temperatures are experienced in January, with average high temperatures of 28.2°F (-2.1°C) and lows of 15.1°F (-9.4°C). Weather in January »
Weather in February
The last month of the winter, February, is an icy month in Norwalk, Iowa, with an average temperature ranging between min 18°F (-7.8°C) and max 32.4°F (0.2°C). The shift into February reveals an average high-temperature of a cold 32.4°F (0.2°C), closely mirroring January's climate. Weather in February »
Weather in March
March, the first month of the spring in Norwalk, is a frosty month, with an average temperature varying between 32.2°F (0.1°C) and 47.5°F (8.6°C). A shift in Norwalk's weather is noticeable as February turns into March, with the average high temperature increases from an icy 32.4°F (0.2°C) to a frosty 47.5°F (8.6°C). Weather in March »
Weather in April
April is a refreshing spring month in Norwalk, Iowa, with an average temperature ranging between max 59.7°F (15.4°C) and min 42.4°F (5.8°C). April sees a rise in the average high-temperature, climbing from a chilly 47.5°F (8.6°C) in March to a mild 59.7°F (15.4°C). Weather in April »
Weather in May
May, the last month of the spring in Norwalk, is an agreeable month, with an average temperature fluctuating between 53.1°F (11.7°C) and 69.6°F (20.9°C). May's arrival signals an increase in average high-temperatures, moving from April's mild 59.7°F (15.4°C) to a pleasant 69.6°F (20.9°C). Weather in May »
Weather in June
June, the first month of the summer in Norwalk, is a warm month, with an average temperature ranging between max 79.5°F (26.4°C) and min 62.8°F (17.1°C). As May gives way to June, the average high-temperature displays an increase, moving from an agreeable 69.6°F (20.9°C) to a warm 79.5°F (26.4°C). Weather in June »
Weather in July
July, like June, in Norwalk, Iowa, is another warm summer month, with an average temperature varying between 65.5°F (18.6°C) and 83.1°F (28.4°C). In Norwalk, Iowa, the month of July registers the highest temperatures, averaging 83.1°F (28.4°C) at the peak and 65.5°F (18.6°C) at the lowest. For most parts of July, the heat index is calculated to be a tropical 91.4°F (33°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Norwalk, Iowa, with temperature in the range of an average low of 62.6°F (17°C) and an average high of 81.7°F (27.6°C). With the onset of August, a modest change to a still warm 81.7°F (27.6°C) from July's 83.1°F (28.4°C) is noted in high-temperature. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Norwalk, Iowa, with an average temperature varying between 55.9°F (13.3°C) and 75.6°F (24.2°C). The average high-temperature shows a slight dip in September, from August's 81.7°F (27.6°C) to a still moderately hot 75.6°F (24.2°C). Weather in September »
Weather in October
October, like September, is another refreshing autumn month in Norwalk, Iowa, with an average temperature varying between 45°F (7.2°C) and 60.6°F (15.9°C). With the onset of October, Norwalk's average high-temperature witnesses a clear drop, receding from September's warm 75.6°F (24.2°C) to a mild 60.6°F (15.9°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Norwalk, Iowa, with an average temperature ranging between max 47.1°F (8.4°C) and min 32.7°F (0.4°C). November is characterized by a reduction in the average high-temperature, from a refreshing 60.6°F (15.9°C) in October to a chilly 47.1°F (8.4°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Norwalk, Iowa, with an average temperature varying between 22.5°F (-5.3°C) and 34.2°F (1.2°C). The arrival of December signals a shift in temperature, down from a chilly 47.1°F (8.4°C) in November to an icy 34.2°F (1.2°C). Weather in December »
[Resources]Frequently asked questions
What are the coldest months in Norwalk?
With average temperatures fluctuating between a high of 28.2°F (-2.1°C) and a low of 15.1°F (-9.4°C), January stands out as the coldest month in Norwalk, Iowa.
What is the most humid month in Norwalk?
January and June, with an average relative humidity of 82%, are most humid months.
What is the driest month in Norwalk?
The month with the least rainfall is January, when the rain falls for 4 days and typically collects 0.47" (12mm) of precipitation.
How much does it rain in Norwalk?
In Norwalk, during the entire year, the rain falls for 114.4 days and collects up to 16.38" (416mm) of precipitation.
When does it snow in Norwalk?
Months with snowfall in Norwalk are January through May, October through December.
What is the snowiest month in Norwalk?
January is the month with the most snowfall. Snow falls for 8.7 days and accumulates 2.24" (57mm) of snow.
How many days does it snow in Norwalk?
Throughout the year, in Norwalk, there are 30.9 snowfall days, and 7.36" (187mm) of snow is accumulated.
What is the month with the least sunshine in Norwalk?
January has the least sunshine of the year, with an average of 4.3h of sunshine.
What is the month with the lowest UV index in Norwalk?
With an average maximum UV index of 1, January is the month with the lowest UV index in Norwalk.
When is Daylight Saving Time (DST) in Norwalk?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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 wettest month in Norwalk?
The month with the most rainfall is May, when the rain falls for 15.3 days and typically aggregates up to 2.76" (70mm) of precipitation.
When it does not snow in Norwalk?
In Norwalk, Iowa, snow does not fall in June through September.
When are the longest days in Norwalk?
The month with the longest days is June, with an average of 15h and 6min of daylight.
What are the months with the highest UV index in Norwalk?
The months with the highest UV index are June through August, with an average maximum UV index of 6.
What is the hottest time of year in Norwalk?
In Norwalk, the peak average temperatures are observed in July, with a high of 83.1°F (28.4°C) and a low of 65.5°F (18.6°C).
What month has the most sunshine in Norwalk?
The month with the most sunshine is July, with an average of 10.3h of sunshine.
What is the least humid month in Norwalk?
The least humid month in Norwalk, Iowa, is October, with an average relative humidity of 70%.
What is the month with the shortest days in Norwalk?
December has the shortest days of the year, with an average of 9h and 12min of daylight.
Average temperature
Norwalk, IA
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (28.2°F).
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure
Norwalk, IA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.14"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.92"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.88"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed
Norwalk, IA
- Average wind speed in January:
10.3mph - Average wind speed in February:
10.3mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.3mph - Average wind speed in May:
8.8mph - Average wind speed in June:
8mph
The windiest months (with the highest average wind speed) are January, February, March and April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity
Norwalk, IA
The months with the highest relative humidity are January and June (82%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Norwalk, IA
- Average rainfall in January:
0.47" - Average rainfall in February:
0.51" - Average rainfall in March:
1.02" - Average rainfall in April:
1.46" - Average rainfall in May:
2.76" - Average rainfall in June:
2.64"
- Average rainfall in July:
1.5" - Average rainfall in August:
1.85" - Average rainfall in September:
1.73" - Average rainfall in October:
1.18" - Average rainfall in November:
0.71" - Average rainfall in December:
0.55"
The wettest month (with the highest rainfall) is May (2.76").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days
Norwalk, IA
- Average rainfall days in January:
4 days - Average rainfall days in February:
3 days - Average rainfall days in March:
8.7 days - Average rainfall days in April:
13.4 days - Average rainfall days in May:
15.3 days - Average rainfall days in June:
15.9 days
- Average rainfall days in July:
12.9 days - Average rainfall days in August:
11.8 days - Average rainfall days in September:
10.5 days - Average rainfall days in October:
8.5 days - Average rainfall days in November:
6.3 days - Average rainfall days in December:
4.1 days
The month with the highest number of rainy days is June (15.9 days).
The month with the least rainy days is February (3 days).
Average snowfall
Norwalk, IA
- Average snowfall in January:
2.24" - Average snowfall in February:
2.2" - Average snowfall in March:
0.98" - Average snowfall in April:
0.35" - Average snowfall in May:
0.08" - Average snowfall in June:
0"
The month with the highest snowfall is January (2.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Norwalk, IA
- Average snowfall days in January:
8.7 days - Average snowfall days in February:
7.8 days - Average snowfall days in March:
4.6 days - Average snowfall days in April:
1.1 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:
0.6 days - Average snowfall days in November:
2.2 days - Average snowfall days in December:
5.7 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Norwalk, 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 2min - Average sunshine in February:
4h and 5min - Average sunshine in March:
6h and 0min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 2min - 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 4min - Average sunshine in December:
4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days
Norwalk, IA
- Average sunshine days in January:
20.3 days - Average sunshine days in February:
17.8 days - Average sunshine days in March:
18 days - Average sunshine days in April:
15.1 days - Average sunshine days in May:
12.4 days - Average sunshine days in June:
12.2 days
- Average sunshine days in July:
15.5 days - Average sunshine days in August:
16.7 days - Average sunshine days in September:
17.5 days - Average sunshine days in October:
21.2 days - Average sunshine days in November:
21.9 days - Average sunshine days in December:
22.3 days
The month with the most sunshine days is December (22.3 days).
The month with the least sunshine days is June (12.2 days).
Average UV index
Norwalk, IA
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Norwalk, IA
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and September (Cloud cover 29).
Average visibility
Norwalk, IA
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).
Norwalk, Iowa, USA
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