July weather forecast
Harriston, MS

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Weather in July

July, the same as June, in Harriston, Mississippi, is a hot summer month, with an average temperature varying between 72.7°F (22.6°C) and 91.4°F (33°C).

Temperature

The month of July, characterized by an average high of 91.4°F (33°C) and a low of 72.7°F (22.6°C), is recognized as the warmest.

Heat index

The heat index for July is computed to be a burning hot 114.8°F (46°C). Mind: Heat cramps along with heat exhaustion are anticipated. Heatstroke can develop with continued physical activity.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

The average relative humidity in July is 76%.

Rainfall

In July, the rain falls for 18.4 days. Throughout July, 3.74" (95mm) of precipitation is accumulated. In Harriston, during the entire year, the rain falls for 162.8 days and collects up to 34.33" (872mm) of precipitation.

Snowfall

In Harriston, snow does not fall in March through November.

Daylight

In July, the average length of the day is 13h and 59min.
On the first day of the month, sunrise is at 6:02 am and sunset at 8:13 pm. On the last day of July, sunrise is at 6:19 am and sunset at 8:01 pm CDT.

Sunshine

In July, the average sunshine in Harriston is 10.2h.

UV index

June through August, with an average maximum UV index of 7, are months with the highest UV index in Harriston. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In July, an average UV index of 7 transforms into the following instructions:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the hottest in Harriston?

In Harriston, July records the average highest temperatures, peaking at 91.4°F (33°C) and reaching a low of 72.7°F (22.6°C).

How hot is it in Harriston in July?

The high-temperature, in July, in Harriston, records 91.4°F (33°C), while the low-temperature is 72.7°F (22.6°C). In July, the average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is computed to be 114.8°F (46°C).

What is the average humidity in July in Harriston?

In Harriston, the average relative humidity in July is 76%.

How many days does it rain in July in Harriston?

In July, in Harriston, Mississippi, the rain falls for 18.4 days. Throughout July, 3.74" (95mm) of precipitation is accumulated.

When it does not snow in Harriston?

March through November are months without snowfall in Harriston.

What is the average length of the day in July in Harriston?

The average day length in July in Harriston, Mississippi, is 13h and 59min.

When are sunrise and sunset in July in Harriston?

On the first day of July in Harriston, Mississippi, sunrise is at 6:02 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 8:01 pm CDT.

How many hours of sunshine does Harriston have in July?

The average sunshine duration in July is 10.2h.

What is the month with the highest UV index in Harriston?

The months with the highest UV index in Harriston, Mississippi, are June through August, with an average maximum UV index of 7.

How high is the UV index in July in Harriston?

In July, the average daily maximum UV index in Harriston, Mississippi, is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Harriston, MS

Average temperature in July - Harriston, MS
  • Average high temperature in July: 91.4°F

The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (55.4°F).

  • Average low temperature in July: 72.7°F

The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (40.1°F).

Average pressure in July
Harriston, MS

Average pressure in July - Harriston, MS
  • Average pressure in July: 30"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in July
Harriston, MS

Average wind speed in July - Harriston, MS
  • Average wind speed in July: 5mph

The windiest month (with the highest average wind speed) is February (7.6mph).
The calmest months (with the lowest average wind speed) are August and September (4.9mph).

Average humidity in July
Harriston, MS

Average humidity in July - Harriston, MS
  • Average humidity in July: 76%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is October (71%).

Average rainfall in July
Harriston, MS

Average rainfall in July - Harriston, MS
  • Average rainfall in July: 3.74"

The wettest month (with the highest rainfall) is August (3.9").
The driest month (with the least rainfall) is November (1.81").

Average rainfall days in July
Harriston, MS

Average rainfall days in July - Harriston, MS
  • Average rainfall days in July: 18.4 days

The month with the highest number of rainy days is August (19.5 days).
The month with the least rainy days is November (7.9 days).

Average snowfall in July
Harriston, MS

Average snowfall in July - Harriston, MS
  • Average snowfall in July: 0"

The month with the highest snowfall is January (0.43").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in July
Harriston, MS

Average snowfall days in July - Harriston, MS
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in July /
Average sunshine in July
Harriston, MS

Average daylight in July / Average sunshine in July - Harriston, MS
  • Average daylight in July: 14h and 0min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in July: 10h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

Average sunshine days in July
Harriston, MS

Average sunshine days in July - Harriston, MS
  • Average sunshine days in July: 9.8 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is August (9.2 days).

Average UV index in July
Harriston, MS

Average UV index in July - Harriston, MS
  • Average UV index in July: 7

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

Average cloud cover in July
Harriston, MS

Average cloud cover in July - Harriston, MS
  • Average cloud cover in July: 33

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in July
Harriston, MS

Average visibility in July - Harriston, MS
  • Average visibility in July: 5mi

The months with the highest visibility are January, February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are May, July, August and September (5mi).

Harriston, Mississippi, USA

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