Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
Temperature readings reach their annual highs in July, averaging 82.8°F (28.2°C) and a minimum average of 55.4°F (13°C).Heat index
The heat index for July is computed to be 82.4°F (28°C). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.The standards for the heat index are set for locations in shade and under light breezes. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', determines the feeling of heat when you account for the relative humidity. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Humidity
In July, the average relative humidity in Lewiston is 40%.Rainfall
The month with the least rainfall is July, when the rain falls for 7.3 days and typically collects 0.63" (16mm) of precipitation.Snowfall
In Lewiston, snow does not fall in June through August.Daylight
In Lewiston, Utah, the average length of the day in July is 14h and 52min.On the first day of July, sunrise is at 5:56 am and sunset at 9:06 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 8:46 pm MDT.
Sunshine
July and August, with an average of 11.9h of sunshine, are months with the most sunshine in Lewiston.UV index
With an average maximum UV index of 6, July is the month with the highest UV index in Lewiston. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In July, the maximum UV index of 6 suggests these recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. 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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the warmest months in Lewiston?
How hot is July in Lewiston?
What is the average humidity in July in Lewiston?
What is the driest month in Lewiston?
How many days does it rain in July in Lewiston?
When it does not snow in Lewiston?
What is the average length of the day in July in Lewiston?
When are sunrise and sunset in July in Lewiston?
What is the month with the most sunshine in Lewiston?
How many hours of sunshine does Lewiston have in July?
When is the highest UV index in Lewiston?
What is the UV index intensity in July in Lewiston?
Average temperature in July
Lewiston, UT
- Average high temperature in July: 82.8°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is December (28.6°F).
- Average low temperature in July: 55.4°F
The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).
Average pressure in July
Lewiston, UT
- Average pressure in July: 29.93"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in July
Lewiston, UT
- Average wind speed in July: 5.5mph
The windiest months (with the highest average wind speed) are April, June and August (5.7mph).
The calmest month (with the lowest average wind speed) is January (4.2mph).
Average humidity in July
Lewiston, UT
- Average humidity in July: 40%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (38%).
Average rainfall in July
Lewiston, UT
- Average rainfall in July: 0.63"
The wettest month (with the highest rainfall) is January (2.24").
The driest month (with the least rainfall) is July (0.63").
Average rainfall days in July
Lewiston, UT
- Average rainfall days in July: 7.3 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is November (6.7 days).
Average snowfall in July
Lewiston, UT
- Average snowfall in July: 0"
The month with the highest snowfall is January (16.73").
The months with the least snowfall are June, July and August (0").
Average snowfall days in July
Lewiston, UT
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (15.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in July /
Average sunshine in July
Lewiston, UT
- Average daylight in July: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in July: 11h and 5min
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: 4h and 48min).
Average sunshine days in July
Lewiston, UT
- Average sunshine days in July: 18.2 days
The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is February (9.1 days).
Average UV index in July
Lewiston, UT
- 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 and December (UV index 1).
Average cloud cover in July
Lewiston, UT
- Average cloud cover in July: 11
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in July
Lewiston, UT
- 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, February and December (4mi).
Lewiston, Utah, USA
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