July weather forecastHayden, ID
July
Weather in July
July, often considered the peak of summer, comes with the highest possible temperatures of the year, soaring up to 81.9°F (27.7°C). The rainfall reaches its lowest point, with a scarce average of 0.43" (11mm), signifying an extremely dry period. Hayden, Idaho experiences an arid climate in July, with reduced relative humidity and a heightened UV index that needs attention. The area caters to a variety of summer recreation—both land and water-based—thanks to the extended daylight and increased sunshine hours. Notably, despite the high temperatures, the wind speed remains steady, providing some respite from the heat.Temperature
The shift into July in Hayden is characterized by a rise in the average high-temperature, transitioning from June's pleasant 70.2°F (21.2°C) to a moderately hot 81.9°F (27.7°C). With a notable difference from peak temperatures, an average of 50.5°F (10.3°C) marks the nights in Hayden, Idaho, in July.Heat index
In July, the average heat index is evaluated at 82.4°F (28°C). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.Be advised, the heat index considers values for conditions in shade and with a light breeze. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. 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
In July, the average relative humidity in Hayden, Idaho, is 50%.Rainfall
The months with the least rainfall in Hayden are July and August Rain falls for 5.8 days and accumulates 0.43" (11mm) of rain.Snowfall
In Hayden, snow does not fall in June through August.Daylight
In July, the average length of the day is 15h and 32min.On the first day of the month, sunrise is at 4:53 am and sunset at 8:49 pm. On the last day of July, in Hayden, Idaho, sunrise is at 5:24 am and sunset at 8:23 pm PDT.
Sunshine
In Hayden, the average sunshine in July is 11.7h.UV index
The month with the highest UV index in Hayden is July, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In July, the average maximum UV index of 6 translates into the following recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Hayden, ID
- Average high temperature in July: 81.9°F
The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (31.3°F).
- Average low temperature in July: 50.5°F
The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is December (21.2°F).
Average pressure in July
Hayden, ID
- Average pressure in July: 29.93"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in July
Hayden, ID
- Average wind speed in July: 4.3mph
The windiest month (with the highest average wind speed) is April (5mph).
The calmest month (with the lowest average wind speed) is December (3.9mph).
Average humidity in July
Hayden, ID
- Average humidity in July: 50%
The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (48%).
Average rainfall in July
Hayden, ID
- Average rainfall in July: 0.43"
The wettest month (with the highest rainfall) is January (3.27").
The driest months (with the least rainfall) are July and August (0.43").
Average rainfall days in July
Hayden, ID
- Average rainfall days in July: 5.8 days
The month with the highest number of rainy days is March (17.5 days).
The month with the least rainy days is August (5.6 days).
Average snowfall in July
Hayden, ID
- Average snowfall in July: 0"
The month with the highest snowfall is January (16.57").
The months with the least snowfall are June, July and August (0").
Average snowfall days in July
Hayden, ID
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is December (16.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in July /
Average sunshine in July
Hayden, ID
- Average daylight in July: 15h and 30min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in July: 11h and 42min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in July
Hayden, ID
- Average sunshine days in July: 23.9 days
The month with the most sunshine days is July (23.9 days).
The month with the least sunshine days is February (8.6 days).
Average UV index in July
Hayden, ID
- 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 February, November and December (UV index 1).
Average cloud cover in July
Hayden, ID
- Average cloud cover in July: 14
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in July
Hayden, ID
- Average visibility in July: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).





