Contents
- Weather in June
- Frequently asked questions
- Average temperature in June
- Average pressure in June
- Average wind speed in June
- Average humidity in June
- Average rainfall in June
- Average rainfall days in June
- Average snowfall in June
- Average snowfall days in June
- Average daylight in June
- Average sunshine in June
- Average sunshine days in June
- Average UV index in June
- Average cloud cover in June
- Average visibility in June
Weather in June
Temperature
The beginning of June signals a rise in the average high-temperature, moving from an agreeable 69.4°F (20.8°C) in May to a moderately hot 79.3°F (26.3°C). Throughout June, the average low-temperature dips to a comfortable 62.8°F (17.1°C).Humidity
In June, the average relative humidity is 79%.Rainfall
In Herndon, in June, during 17.3 rainfall days, 3.94" (100mm) of precipitation is typically accumulated. Throughout the year, there are 125.7 rainfall days, and 26.5" (673mm) of precipitation is accumulated.Snowfall
In Herndon, Iowa, snow does not fall in June through September.Daylight
June has the longest days of the year in Herndon, Iowa, with an average of 15h and 12min of daylight.On the first day of June in Herndon, sunrise is at 5:44 am and sunset at 8:46 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 8:56 pm CDT.
Sunshine
The average sunshine in June in Herndon is 9.5h.UV index
June and July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 6 during June translates into these guidelines:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Frequently asked questions
What are the temperatures in Herndon in June?
What is the average humidity in June in Herndon?
How much does it rain in Herndon in June?
When it does not snow in Herndon?
Does it snow in Herndon in June?
When are the longest days in Herndon?
What is the average length of the day in June in Herndon?
What time are sunrise and sunset in June in Herndon?
How long on average sun shines in June in Herndon?
What is the month with the highest UV index in Herndon?
What is the UV index intensity in June in Herndon?
Average temperature in June
Herndon, IA
- Average high temperature in June: 79.3°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in June: 62.8°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in June
Herndon, 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
Herndon, IA
- Average wind speed in June: 8.3mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in June
Herndon, IA
- Average humidity in June: 79%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (69%).
Average rainfall in June
Herndon, IA
- Average rainfall in June: 3.94"
The wettest month (with the highest rainfall) is May (4.06").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in June
Herndon, IA
- Average rainfall days in June: 17.3 days
The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is February (3.4 days).
Average snowfall in June
Herndon, IA
- Average snowfall in June: 0"
The month with the highest snowfall is January (4.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in June
Herndon, IA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Herndon, IA
- Average daylight in June: 15h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in June: 9h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in June
Herndon, IA
- Average sunshine days in June: 11.1 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is June (11.1 days).
Average UV index in June
Herndon, IA
- Average UV index in June: 6
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in June
Herndon, IA
- Average cloud cover in June: 35
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July and September (Cloud cover 30).
Average visibility in June
Herndon, IA
- Average visibility in June: 6mi
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).
Herndon, Iowa, USA
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