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
July, on average, is the warmest month, registering a high temperature of 89.2°F (31.8°C) and a low of 68.5°F (20.3°C).Heat index
The average heat index in July is calculated to be a hot 93.2°F (34°C). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.Note that heat index values are valued for light wind and location in the shade. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', offers an insight into how hot it feels when we factor in moisture content. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are primarily vital for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
The average relative humidity in July is 49%.Rainfall
In Hayes, in July, during 12.4 rainfall days, 1.81" (46mm) of precipitation is typically accumulated. Throughout the year, there are 95.3 rainfall days, and 13.74" (349mm) of precipitation is accumulated.Snowfall
In Hayes, South Dakota, snow does not fall in June through September.Daylight
In Hayes, the average length of the day in July is 15h and 8min.On the first day of July, sunrise is at 5:04 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 5:31 am and sunset at 8:09 pm MDT.
Sunshine
In Hayes, the average sunshine in July is 11.6h.UV index
July is the month with the highest UV index, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: In July, the maximum UV index of 7 transforms into these recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the warmest month?
How hot is it in July?
What is the average humidity in July?
How much does it rain in July?
When it does not snow?
What is the average length of the day in July?
When are sunrise and sunset in July?
How many hours of sunshine does Hayes have in July?
When is the highest UV index?
What is the UV index reading in July?
Average temperature in July
Hayes, SD
- Average high temperature in July: 89.2°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in July: 68.5°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in July
Hayes, SD
- Average pressure in July: 29.9"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in July
Hayes, SD
- Average wind speed in July: 10.3mph
The windiest month (with the highest average wind speed) is April (12.1mph).
The calmest month (with the lowest average wind speed) is February (10.1mph).
Average humidity in July
Hayes, SD
- Average humidity in July: 49%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is September (47%).
Average rainfall in July
Hayes, SD
- Average rainfall in July: 1.81"
The wettest month (with the highest rainfall) is May (2.09").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in July
Hayes, SD
- Average rainfall days in July: 12.4 days
The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is February (2.6 days).
Average snowfall in July
Hayes, SD
- Average snowfall in July: 0"
The month with the highest snowfall is February (3.15").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Hayes, SD
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Hayes, SD
- Average daylight in July: 15h and 1min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in July: 11h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).
Average sunshine days in July
Hayes, SD
- Average sunshine days in July: 15.5 days
The month with the most sunshine days is December (21.1 days).
The months with the least sunshine days are April and June (14.1 days).
Average UV index in July
Hayes, SD
- Average UV index in July: 7
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in July
Hayes, SD
- Average cloud cover in July: 18
The month with the most cloud cover is January (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 18).
Average visibility in July
Hayes, 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).
Hayes, South Dakota, USA
Weather forecast for your location
2. Allow the app to use your location