July weather forecastFairfax, SD
July
Weather in July
July is a hot summer month in Fairfax, South Dakota, with temperature in the range of an average low of 65.7°F (18.7°C) and an average high of 86.5°F (30.3°C).Temperature
The warmest period is July, when temperatures fluctuate between an average high of 86.5°F (30.3°C) and a low of 65.7°F (18.7°C).Heat index
The heat index for July is evaluated at a very hot 95°F (35°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.When assessing, remember that heat index measurements are for light winds and shaded spots. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are particularly important for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.
Humidity
The average relative humidity in July in Fairfax is 67%.Rainfall
In Fairfax, in July, it is raining for 12.4 days, with typically 1.73" (44mm) of accumulated precipitation. In Fairfax, during the entire year, the rain falls for 104.1 days and collects up to 14.29" (363mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In July, the average length of the day in Fairfax is 14h and 59min.On the first day of the month, sunrise is at 6:00 am and sunset at 9:18 pm. On the last day of July, sunrise is at 6:26 am and sunset at 8:57 pm CDT.
Sunshine
July has the most sunshine of the year in Fairfax, with an average of 11.1h of sunshine.UV index
The months with the highest UV index in Fairfax are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 6 during July translates into the following guidance:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Fairfax, SD
- Average high temperature in July: 86.5°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (27.3°F).
- Average low temperature in July: 65.7°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).
Average pressure in July
Fairfax, SD
- Average pressure in July: 29.92"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in July
Fairfax, SD
- Average wind speed in July: 8.3mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).
Average humidity in July
Fairfax, SD
- Average humidity in July: 67%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (62%).
Average rainfall in July
Fairfax, SD
- Average rainfall in July: 1.73"
The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is February (0.31").
Average rainfall days in July
Fairfax, SD
- Average rainfall days in July: 12.4 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (2.9 days).
Average snowfall in July
Fairfax, SD
- Average snowfall in July: 0"
The months with the highest snowfall are January and March (1.93").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in July
Fairfax, SD
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Fairfax, SD
- 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: 11h and 6min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in July
Fairfax, SD
- Average sunshine days in July: 14.6 days
The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in July
Fairfax, SD
- Average UV index in July: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in July
Fairfax, SD
- Average cloud cover in July: 23
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 23).
Average visibility in July
Fairfax, SD
- Average visibility in July: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
