June weather forecastWilliamstown, MO
June
Weather in June
The first month of the summer, June, is a moderately hot month in Williamstown, Missouri, with an average temperature varying between 63.7°F (17.6°C) and 80.8°F (27.1°C).Temperature
The shift from May to June brings an increase in the average high-temperature, moving from a pleasant 71.2°F (21.8°C) to a warm 80.8°F (27.1°C). Throughout June, the average low-temperature records at an enjoyable 63.7°F (17.6°C).Heat index
June's mean heat index is appraised at a tropical 86°F (30°C). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.Research indicates the heat index considers values in shaded locales and with light winds. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', binds temperature metrics with humidity values to give a sense of the actual warmth. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Humidity
The months with the highest humidity in Williamstown are June and July, with an average relative humidity of 81%.Rainfall
In June, the rain falls for 17.2 days. Throughout June, 3.58" (91mm) of precipitation is accumulated. In Williamstown, Missouri, during the entire year, the rain falls for 134.4 days and collects up to 27.44" (697mm) 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 0min of daylight.On the first day of June, sunrise is at 5:39 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 8:40 pm CDT.
Sunshine
The average sunshine in June is 10.2h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.Note: In June, the maximum UV index of 6 suggests these recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Williamstown, MO
- Average high temperature in June: 80.8°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in June: 63.7°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in June
Williamstown, MO
- Average pressure in June: 29.9"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in June
Williamstown, MO
- Average wind speed in June: 7.7mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).
Average humidity in June
Williamstown, MO
- Average humidity in June: 81%
The months with the highest relative humidity are June and July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in June
Williamstown, MO
- Average rainfall in June: 3.58"
The wettest month (with the highest rainfall) is May (3.7").
The driest month (with the least rainfall) is January (1.22").
Average rainfall days in June
Williamstown, MO
- Average rainfall days in June: 17.2 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (4.7 days).
Average snowfall in June
Williamstown, MO
- Average snowfall in June: 0"
The month with the highest snowfall is January (3.98").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in June
Williamstown, MO
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (7.4 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
Williamstown, MO
- Average daylight in June: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in June: 10h and 12min
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 18min).
Average sunshine days in June
Williamstown, MO
- Average sunshine days in June: 10.9 days
The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in June
Williamstown, MO
- Average UV index in June: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in June
Williamstown, MO
- Average cloud cover in June: 30
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in June
Williamstown, 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).
