June weather forecastNorwalk, IA
June
Weather in June
The first month of the summer, June, is a warm month in Norwalk, Iowa, with temperature in the range of an average high of 79.5°F (26.4°C) and an average low of 62.8°F (17.1°C).Temperature
The start of June brings a rise in the average high-temperature, moving from a pleasant 69.6°F (20.9°C) in May to a moderately hot 79.5°F (26.4°C). Norwalk witnesses an average low-temperature of 62.8°F (17.1°C) throughout the month of June.Humidity
The months with the highest humidity are January and June, with an average relative humidity of 82%.Rainfall
In Norwalk, in June, during 15.9 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. In Norwalk, during the entire year, the rain falls for 114.4 days and collects up to 16.38" (416mm) of precipitation.Snowfall
In Norwalk, snow does not fall in June through September.Daylight
June has the longest days of the year, with an average of 15h and 6min of daylight.On the first day of the month, sunrise is at 5:42 am and sunset at 8:42 pm. On the last day of June, sunrise is at 5:44 am and sunset at 8:52 pm CDT.
Sunshine
In June, the average sunshine is 9.7h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in Norwalk. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 6 in June leads to these recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Norwalk, IA
- Average high temperature in June: 79.5°F
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).
- Average low temperature in June: 62.8°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 in June
Norwalk, IA
- Average pressure in June: 29.88"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 in June
Norwalk, IA
- 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 in June
Norwalk, IA
- Average humidity in June: 82%
The months with the highest relative humidity are January and June (82%).
The month with the lowest relative humidity is October (70%).
Average rainfall in June
Norwalk, IA
- Average rainfall in June: 2.64"
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 in June
Norwalk, IA
- Average rainfall days in June: 15.9 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 in June
Norwalk, IA
- 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 in June
Norwalk, IA
- Average snowfall days in June: 0 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 in June /
Average sunshine in June
Norwalk, IA
- Average daylight in June: 15h and 6min
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 June: 9h and 42min
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 in June
Norwalk, IA
- Average sunshine days in June: 12.2 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 in June
Norwalk, IA
- Average UV index in June: 6
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 in June
Norwalk, IA
- Average cloud cover in June: 34
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 in June
Norwalk, IA
- Average visibility in June: 6mi
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).





