July weather forecastSouth Deerfield, MA
July
Weather in July
July, like June, in South Deerfield, Massachusetts, is another warm summer month, with an average temperature fluctuating between 81.3°F (27.4°C) and 59.7°F (15.4°C).Temperature
South Deerfield's temperature records reveal July as the warmest month, marked by average highs of 81.3°F (27.4°C) and lows of 59.7°F (15.4°C).Heat index
In July, the heat index is evaluated at a tropical 86°F (30°C). Long-lasting exposure and activity potentially induce a sense of weariness, with the risk of heat cramps.Understand that the heat index values take into account shaded locations and mild winds. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
Humidity
The average relative humidity in July is 76%.Rainfall
In South Deerfield, in July, it is raining for 14.5 days, with typically 2.17" (55mm) of accumulated precipitation. Throughout the year, there are 147.7 rainfall days, and 28.9" (734mm) of precipitation is accumulated.Snowfall
In South Deerfield, snow does not fall in June through September.Daylight
In South Deerfield, the average length of the day in July is 14h and 56min.On the first day of the month, sunrise is at 5:17 am and sunset at 8:31 pm. On the last day of July, sunrise is at 5:42 am and sunset at 8:11 pm EDT.
Sunshine
July has the most sunshine of the year, with an average of 10.2h of sunshine.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: In July, a daily UV index of 5 turns into the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
South Deerfield, MA
- Average high temperature in July: 81.3°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in July: 59.7°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in July
South Deerfield, MA
- 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
South Deerfield, MA
- Average wind speed in July: 5.2mph
The windiest months (with the highest average wind speed) are January, February and March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in July
South Deerfield, MA
- Average humidity in July: 76%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (73%).
Average rainfall in July
South Deerfield, MA
- Average rainfall in July: 2.17"
The wettest month (with the highest rainfall) is December (3.07").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in July
South Deerfield, MA
- Average rainfall days in July: 14.5 days
The month with the highest number of rainy days is April (15.3 days).
The month with the least rainy days is February (8.9 days).
Average snowfall in July
South Deerfield, MA
- Average snowfall in July: 0"
The month with the highest snowfall is February (6.42").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
South Deerfield, MA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (10 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
South Deerfield, MA
- Average daylight in July: 14h and 54min
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 6min).
- Average sunshine in July: 10h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in July
South Deerfield, MA
- Average sunshine days in July: 14 days
The month with the most sunshine days is September (17.1 days).
The month with the least sunshine days is April (13.2 days).
Average UV index in July
South Deerfield, MA
- Average UV index in July: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in July
South Deerfield, MA
- Average cloud cover in July: 36
The months with the most cloud cover are February and March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in July
South Deerfield, MA
- Average visibility in July: 5mi
The months with the highest visibility are April, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September and October (5mi).





