July weather forecastBoulder, WY
July
Weather in July
July sizzles as the hottest month of the year in Boulder, Wyoming, with temperatures soaring to 78.4°F (25.8°C) on average. The conditions consolidate summer, with lower rainfall scales recording an average of 0.55" (14mm). Extended sunshine hours are complemented by reduced cloud cover, creating an inviting atmosphere for outdoor activities. The UV index stands at its highest, encouraging measures for sun protection. Despite the heat, wind speeds remain mild, offering a gentle reprieve from the heated atmosphere.Temperature
July, having an average high-temperature of 78.4°F (25.8°C) and an average low-temperature of 55.2°F (12.9°C), is the warmest month.Humidity
In July, the average relative humidity is 35%.Rainfall
In July, the rain falls for 7.8 days. Throughout July, 0.55" (14mm) of precipitation is accumulated. Throughout the year, in Boulder, there are 102.6 rainfall days, and 10.75" (273mm) of precipitation is accumulated.Snowfall
July and August are months without snowfall.Daylight
In Boulder, Wyoming, the average length of the day in July is 14h and 57min.On the first day of July, sunrise is at 5:44 am and sunset at 9:00 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 8:40 pm MDT.
Sunshine
July and August, with an average of 11.9h of sunshine, are months with the most sunshine.UV index
The month with the highest UV index in Boulder is July, 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 rays for the average person.Note: The UV index of 6 in July translates into these instructions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Boulder, WY
- Average high temperature in July: 78.4°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is December (23.9°F).
- Average low temperature in July: 55.2°F
The month with the highest average low temperature is July (55.2°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).
Average pressure in July
Boulder, WY
- Average pressure in July: 29.96"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in July
Boulder, WY
- Average wind speed in July: 6.8mph
The windiest month (with the highest average wind speed) is June (8.1mph).
The calmest month (with the lowest average wind speed) is December (5.8mph).
Average humidity in July
Boulder, WY
- Average humidity in July: 35%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is August (34%).
Average rainfall in July
Boulder, WY
- Average rainfall in July: 0.55"
The wettest month (with the highest rainfall) is May (1.73").
The driest month (with the least rainfall) is August (0.51").
Average rainfall days in July
Boulder, WY
- Average rainfall days in July: 7.8 days
The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (5.5 days).
Average snowfall in July
Boulder, WY
- Average snowfall in July: 0"
The month with the highest snowfall is February (7.32").
The months with the least snowfall are July and August (0").
Average snowfall days in July
Boulder, WY
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is March (15.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in July /
Average sunshine in July
Boulder, WY
- Average daylight in July: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in July: 11h and 54min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 18min).
Average sunshine days in July
Boulder, WY
- Average sunshine days in July: 18.6 days
The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is May (9.7 days).
Average UV index in July
Boulder, WY
- Average UV index in July: 6
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in July
Boulder, WY
- Average cloud cover in July: 13
The month with the most cloud cover is February (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 11).
Average visibility in July
Boulder, WY
- Average visibility in July: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
