June weather forecastAltoona, IA
June
Weather in June
June experiences a further enhancement of summer temperatures as Altoona warms to an average high of 79.3°F (26.3°C). The warm weather is coupled with heightened humidity, resulting in somewhat stuffy conditions. Despite the heat, there is an overall decrease in precipitation compared to May, though rainfall still occurs frequently enough to keep the landscape lush and verdant. Lengthy days, subjective to the Summer Solstice, offer extended hours of daylight and sunshine. Cooler evenings provide a respite from the daytime heat, making it a favorable time for outdoor activities.Temperature
Altoona's transition into June is marked by a rise in the average high-temperature, advancing from an agreeable 69.6°F (20.9°C) in May to a warm 79.3°F (26.3°C). Nighttime temperatures in Altoona consistently average a refreshing 62.8°F (17.1°C) during June.Humidity
In Altoona, the average relative humidity in June is 82%.Rainfall
In June, the rain falls for 11.1 days. Throughout June, 0.94" (24mm) of precipitation is accumulated. In Altoona, during the entire year, the rain falls for 79 days and collects up to 5.94" (151mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
The month with the longest days is June, with an average of 15h and 6min of daylight.On the first day of the month, sunrise is at 5:41 am and sunset at 8:42 pm. On the last day of June, in Altoona, sunrise is at 5:43 am and sunset at 8:52 pm CDT.
Sunshine
The average sunshine in June is 9.8h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: An average maximum UV index of 6 in June leads to these recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Altoona, IA
- Average high temperature in June: 79.3°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (27.5°F).
- Average low temperature in June: 62.8°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in June
Altoona, IA
- Average pressure in June: 29.89"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in June
Altoona, IA
- Average wind speed in June: 8mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in June
Altoona, IA
- Average humidity in June: 82%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (70%).
Average rainfall in June
Altoona, IA
- Average rainfall in June: 0.94"
The wettest month (with the highest rainfall) is May (0.98").
The driest months (with the least rainfall) are January, February and December (0.24").
Average rainfall days in June
Altoona, IA
- Average rainfall days in June: 11.1 days
The month with the highest number of rainy days is May (11.6 days).
The month with the least rainy days is January (1.8 days).
Average snowfall in June
Altoona, IA
- Average snowfall in June: 0"
The month with the highest snowfall is January (0.91").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in June
Altoona, IA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (6.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Altoona, 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 48min
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 12min).
Average sunshine days in June
Altoona, IA
- Average sunshine days in June: 15.5 days
The month with the most sunshine days is December (25.5 days).
The month with the least sunshine days is June (15.5 days).
Average UV index in June
Altoona, 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
Altoona, 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
Altoona, IA
- Average visibility in June: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
