June weather forecastHartley, IA
June
Weather in June
The first month of the summer, June, is a moderately hot month in Hartley, Iowa, with temperature in the range of an average low of 61.2°F (16.2°C) and an average high of 77.4°F (25.2°C).Temperature
With the transition into June, Hartley experiences an increase in average high-temperatures, moving up from a comfortable 67.6°F (19.8°C) in May to a warm 77.4°F (25.2°C). Hartley records an average nighttime low-temperature of 61.2°F (16.2°C) throughout June.Humidity
The average relative humidity in June is 77%.Rainfall
In Hartley, during June, the rain falls for 14.2 days and regularly aggregates up to 1.38" (35mm) of precipitation. Throughout the year, in Hartley, there are 95.2 rainfall days, and 9.25" (235mm) of precipitation is accumulated.Snowfall
In Hartley, snow does not fall in June through September.Daylight
The month with the longest days is June, with an average of 15h and 18min of daylight.On the first day of June, sunrise is at 5:44 am and sunset at 8:55 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 9:05 pm CDT.
Sunshine
The average sunshine in June is 9.6h.UV index
The months with the highest UV index are June and July, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In June, a daily maximum UV index of 6 leads to the following instructions:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Hartley, IA
- Average high temperature in June: 77.4°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (22.8°F).
- Average low temperature in June: 61.2°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in June
Hartley, IA
- Average pressure in June: 29.87"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in June
Hartley, IA
- Average wind speed in June: 8.8mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in June
Hartley, IA
- Average humidity in June: 77%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (68%).
Average rainfall in June
Hartley, IA
- Average rainfall in June: 1.38"
The wettest month (with the highest rainfall) is May (1.46").
The driest month (with the least rainfall) is January (0.28").
Average rainfall days in June
Hartley, IA
- Average rainfall days in June: 14.2 days
The month with the highest number of rainy days is June (14.2 days).
The month with the least rainy days is February (2 days).
Average snowfall in June
Hartley, IA
- Average snowfall in June: 0"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in June
Hartley, IA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Hartley, IA
- Average daylight in June: 15h and 18min
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 June: 9h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in June
Hartley, IA
- Average sunshine days in June: 12.6 days
The month with the most sunshine days is December (22.2 days).
The month with the least sunshine days is June (12.6 days).
Average UV index in June
Hartley, 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 and November (UV index 1).
Average cloud cover in June
Hartley, IA
- Average cloud cover in June: 36
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in June
Hartley, 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).





