July weather forecastGrangeville, ID
July
Weather in July
July's weather in Grangeville, Idaho is in stark contrast to the beginning of the year. The city experiences the highest temperatures of the year with the mercury soaring to nearly 82°F (27.8°C). As sunlight dominates the weather, the city sees only a negligible 0.59" (15mm) of precipitation over seven days. While enjoying the warmth of the peak summer month, residents must be cautious of heat-induced health hazards. Persistent high temperatures imply staying cool and well-hydrated is crucial to withstand July's heatwave.Temperature
The beginning of July signals a rise in the average high-temperature, moving from an agreeable 69.4°F (20.8°C) in June to a warm 81.7°F (27.6°C). In Grangeville, the nighttime temperature registers a significant drop from daytime peaks to an average of 51.3°F (10.7°C) in July.Heat index
For July, the heat index is appraised at 82.4°F (28°C). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.Be informed that the heat index values are oriented around shady conditions and gentle breezes. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gives a temperature feeling by integrating air temperature and humidity. 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. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Humidity
In July, the average relative humidity is 52%.Rainfall
The month with the least rainfall is July, when the rain falls for 7.3 days and typically collects 0.59" (15mm) of precipitation.Snowfall
In Grangeville, snow does not fall in June through August.Daylight
In July, the average length of the day is 15h and 19min.On the first day of July, sunrise is at 4:58 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 8:14 pm PDT.
Sunshine
In July, the average sunshine is 11.7h.UV index
July is the month with the highest UV index, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In July, the maximum UV index of 6 translates into these guidelines:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Grangeville, ID
- Average high temperature in July: 81.7°F
The warmest month (with the highest average high temperature) is August (82.6°F).
The month with the lowest average high temperature is December (33.6°F).
- Average low temperature in July: 51.3°F
The month with the highest average low temperature is August (53.2°F).
The coldest month (with the lowest average low temperature) is December (21.7°F).
Average pressure in July
Grangeville, ID
- Average pressure in July: 29.95"Hg
The month with the highest atmospheric pressure is January (30.21"Hg).
The months with the lowest atmospheric pressure are June and August (29.94"Hg).
Average wind speed in July
Grangeville, ID
- Average wind speed in July: 4mph
The windiest months (with the highest average wind speed) are January and November (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in July
Grangeville, ID
- Average humidity in July: 52%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (47%).
Average rainfall in July
Grangeville, ID
- Average rainfall in July: 0.59"
The wettest month (with the highest rainfall) is April (2.91").
The driest month (with the least rainfall) is July (0.59").
Average rainfall days in July
Grangeville, ID
- Average rainfall days in July: 7.3 days
The month with the highest number of rainy days is April (19.3 days).
The month with the least rainy days is August (6.8 days).
Average snowfall in July
Grangeville, ID
- Average snowfall in July: 0"
The month with the highest snowfall is February (12.95").
The months with the least snowfall are June, July and August (0").
Average snowfall days in July
Grangeville, 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
Grangeville, ID
- Average daylight in July: 15h and 18min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- 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 January (Average sunshine: 4h and 48min).
Average sunshine days in July
Grangeville, ID
- Average sunshine days in July: 21 days
The month with the most sunshine days is August (22.2 days).
The month with the least sunshine days is March (7.5 days).
Average UV index in July
Grangeville, ID
- Average UV index in July: 6
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in July
Grangeville, ID
- Average cloud cover in July: 14
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in July
Grangeville, ID
- Average visibility in July: 6mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).
