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
July
Weather in July
Temperature
July is the month that records the highest temperatures, with averages ranging from a high of 78.1°F (25.6°C) to a low of 64.8°F (18.2°C).Humidity
In July, the average relative humidity is 75%.Rainfall
July is the month with the most rainfall. Rain falls for 17.5 days and accumulates 3.11" (79mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Lewiston, the average length of the day in July is 15h and 0min.On the first day of the month, sunrise is at 5:40 am and sunset at 8:59 pm. On the last day of July, sunrise is at 6:06 am and sunset at 8:38 pm EDT.
Sunshine
July has the most sunshine of the year, with an average of 10.6h of sunshine.UV index
The months with the highest UV index in Lewiston are July and August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 6 during July leads to these advisories:
Deflect overexposure. Sun protection is a necessity. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full 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
What is the hottest time of year in Lewiston?
What is the usual temperature for Lewiston in July?
What is the average humidity in July in Lewiston?
What is the wettest month in Lewiston?
How much does it rain in Lewiston in July?
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 month has the most sunshine in Lewiston?
How long on average sun shines in July in Lewiston?
When is the highest UV index in Lewiston?
What is the UV index intensity in July in Lewiston?
Average temperature in July
Lewiston, NY
- Average high temperature in July: 78.1°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in July: 64.8°F
The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in July
Lewiston, NY
- Average pressure in July: 29.95"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in July
Lewiston, NY
- Average wind speed in July: 7.1mph
The windiest month (with the highest average wind speed) is January (12.3mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in July
Lewiston, NY
- Average humidity in July: 75%
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are August and September (74%).
Average rainfall in July
Lewiston, NY
- Average rainfall in July: 3.11"
The wettest month (with the highest rainfall) is July (3.11").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in July
Lewiston, NY
- Average rainfall days in July: 17.5 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in July
Lewiston, NY
- Average snowfall in July: 0"
The month with the highest snowfall is February (7.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Lewiston, NY
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Lewiston, NY
- 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: 10h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in July
Lewiston, NY
- Average sunshine days in July: 11.3 days
The month with the most sunshine days is September (14 days).
The month with the least sunshine days is January (6.8 days).
Average UV index in July
Lewiston, NY
- Average UV index in July: 6
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in July
Lewiston, NY
- Average cloud cover in July: 29
The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in July
Lewiston, NY
- Average visibility in July: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).