June weather forecastWashington, MO
June
Weather in June
The first month of the summer, June, is still a warm month in Washington, Missouri, with an average temperature fluctuating between 64.9°F (18.3°C) and 85.6°F (29.8°C).Temperature
A shift in the average high-temperature is noticeable in June, changing from a moderately hot 75.7°F (24.3°C) in May to a still warm 85.6°F (29.8°C). During June, the temperature tends to dip to an average of 64.9°F (18.3°C) at night.Heat index
For most parts of June, the heat index is appraised at a torrid 96.8°F (36°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.Evaluating the heat index requires understanding its values in the shade and with gentle winds. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.
Humidity
In June, the average relative humidity is 76%.Rainfall
In Washington, in June, during 13.1 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. In Washington, during the entire year, the rain falls for 133.1 days and collects up to 27.24" (692mm) of precipitation.Snowfall
April through August and October are months without snowfall.Daylight
With an average of 14h and 48min of daylight, June has the longest days of the year.On the first day of June, sunrise is at 5:41 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 8:32 pm CDT.
Sunshine
June and July, with an average of 10.3h of sunshine, are months with the most sunshine.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 health risk from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 6 during June leads to these advisories:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Washington, MO
- Average high temperature in June: 85.6°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (38.1°F).
- Average low temperature in June: 64.9°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).
Average pressure in June
Washington, 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
Washington, MO
- Average wind speed in June: 6.2mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in June
Washington, MO
- Average humidity in June: 76%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (72%).
Average rainfall in June
Washington, MO
- Average rainfall in June: 2.64"
The wettest months (with the highest rainfall) are April and May (3.23").
The driest month (with the least rainfall) is February (1.42").
Average rainfall days in June
Washington, MO
- Average rainfall days in June: 13.1 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is January (6.2 days).
Average snowfall in June
Washington, MO
- Average snowfall in June: 0"
The month with the highest snowfall is February (2.09").
The months with the least snowfall are April, May, June, July, August and October (0").
Average snowfall days in June
Washington, MO
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (5.1 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in June /
Average sunshine in June
Washington, 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 18min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in June
Washington, MO
- Average sunshine days in June: 14.1 days
The month with the most sunshine days is December (20.6 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in June
Washington, 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
Washington, MO
- Average cloud cover in June: 30
The months with the most cloud cover are January and February (Cloud cover 50).
The months with the least cloud cover are June, July and August (Cloud cover 30).
Average visibility in June
Washington, MO
- Average visibility in June: 6mi
The months with the highest visibility are January, February, March, April, June, July, September, October, November and December (6mi).
The months with the lowest visibility are May and August (5mi).
