June weather forecastArnold, MO
June
Weather in June
June, the first month of the summer in Arnold, is still a warm month, with an average temperature ranging between max 84°F (28.9°C) and min 66.7°F (19.3°C).Temperature
As June arrives, a slight rise in the average high-temperature is observed, moving from 75.4°F (24.1°C) in May to a still warm 84°F (28.9°C). The low-temperature averages to an enjoyable 66.7°F (19.3°C) during the nights of June.Heat index
The heat index value for June is appraised at a tropical 93.2°F (34°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.Factoring in the heat index, values are geared towards shaded areas with light breezes. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Humidity
In Arnold, the average relative humidity in June is 77%.Rainfall
In June, in Arnold, the rain falls for 16 days. Throughout June, 3.7" (94mm) of precipitation is accumulated. Throughout the year, there are 146.1 rainfall days, and 32.36" (822mm) of precipitation is accumulated.Snowfall
In Arnold, snow does not fall in April through October.Daylight
The month with the longest days is June, with an average of 14h and 48min of daylight.On the first day of June, sunrise is at 5:38 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 8:29 pm CDT.
Sunshine
With an average of 10.4h of sunshine, June has the most sunshine of the year.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A daily high UV index of 6 in June leads to these guidelines:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Arnold, MO
- Average high temperature in June: 84°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in June: 66.7°F
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure in June
Arnold, MO
- Average pressure in June: 29.92"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in June
Arnold, MO
- Average wind speed in June: 6.4mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in June
Arnold, MO
- Average humidity in June: 77%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (71%).
Average rainfall in June
Arnold, MO
- Average rainfall in June: 3.7"
The wettest month (with the highest rainfall) is May (3.94").
The driest months (with the least rainfall) are February and November (1.77").
Average rainfall days in June
Arnold, MO
- Average rainfall days in June: 16 days
The month with the highest number of rainy days is July (16.9 days).
The months with the least rainy days are January and February (6.8 days).
Average snowfall in June
Arnold, MO
- Average snowfall in June: 0"
The month with the highest snowfall is February (2.6").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in June
Arnold, MO
- Average snowfall days in June: 0 days
The months with the highest number of snowfall days are January and February (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Arnold, MO
- Average daylight in June: 14h and 48min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in June: 10h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in June
Arnold, MO
- Average sunshine days in June: 11.6 days
The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is June (11.6 days).
Average UV index in June
Arnold, MO
- Average UV index in June: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in June
Arnold, MO
- Average cloud cover in June: 29
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in June
Arnold, MO
- 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).





