June weather forecast
Littleton, CO

In June, the weather in Littleton, Colorado, transitions into full-fledged summer, characterized by the highest average temperatures of 82.2°F (27.9°C) throughout the year. However, it is not just the rising mercury levels that earmark the advent of summer. The noticeable disappearance of snow, the arrival of 14.9 hours of daylight, and a modest amount of rainfall contribute to the sunny, temperate environment. The region typically experiences a drop in relative humidity, producing warm, pleasant, and dry conditions that make it an ideal time for outdoor activities.

Temperature

Littleton's June weather is marked by a distinct rise in high-temperatures, escalating from a comfortable 67.5°F (19.7°C) in May to a warm 82.2°F (27.9°C). Littleton logs a notable disparity from the daily highs during June, as the nighttime temperature lowers to an average of 54.7°F (12.6°C).

Heat index

For most parts of June, the heat index is calculated to be 82.4°F (28°C). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.
Heat index readings emphasize conditions of light breezes and shaded spots. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.

Humidity

June and August, with an average relative humidity of 41%, are the least humid months.

Rainfall

In June, the rain falls for 10.9 days. Throughout June, 1.18" (30mm) of precipitation is accumulated. In Littleton, during the entire year, the rain falls for 101.2 days and collects up to 11.89" (302mm) of precipitation.

Snowfall

In Littleton, Colorado, snow does not fall in June through September.

Daylight

The month with the longest days in Littleton is June, with an average of 14h and 54min of daylight.
On the first day of June in Littleton, sunrise is at 5:34 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 5:36 am and sunset at 8:31 pm MDT.

Sunshine

June through August, with an average of 11.8h 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 in Littleton. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 6 in June converts into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.