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
Temperature records mark July as the warmest month, with highs averaging 82°F (27.8°C) and lows at 64.6°F (18.1°C).Heat index
July's heat index is appraised at a tropical 89.6°F (32°C). Constant activity during exposure could result in a state of weariness and possibly heat cramps.Given the heat index, its values are aligned with shaded sites and gentle winds. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
Humidity
In July, the average relative humidity in Jefferson is 82%.Rainfall
In July, the rain falls for 14.1 days. Throughout July, 2.28" (58mm) of precipitation is accumulated. Throughout the year, in Jefferson, there are 125.7 rainfall days, and 26.5" (673mm) of precipitation is accumulated.Snowfall
In Jefferson, snow does not fall in June through September.Daylight
In July, the average length of the day is 14h and 53min.On the first day of the month, sunrise is at 5:46 am and sunset at 8:57 pm. On the last day of July, in Jefferson, Iowa, sunrise is at 6:10 am and sunset at 8:36 pm CDT.
Sunshine
The month with the most sunshine is July, with an average of 10.2h of sunshine.UV index
June and July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 6 in July interprets into the following recommendations:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Frequently asked questions
What part of the year is the hottest in Jefferson?
What is the usual temperature for Jefferson in July?
What is the average humidity in July in Jefferson?
How much does it rain in Jefferson in July?
When it does not snow in Jefferson?
How many hours of daylight does Jefferson have in July?
When are sunrise and sunset in July in Jefferson?
What month has the most sunshine in Jefferson?
How long on average sun shines in July in Jefferson?
What is the month with the highest UV index in Jefferson?
How high is the UV index in July in Jefferson?
Average temperature in July
Jefferson, IA
- Average high temperature in July: 82°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in July: 64.6°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in July
Jefferson, IA
- Average pressure in July: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in July
Jefferson, IA
- Average wind speed in July: 7.1mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in July
Jefferson, IA
- Average humidity in July: 82%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (69%).
Average rainfall in July
Jefferson, IA
- Average rainfall in July: 2.28"
The wettest month (with the highest rainfall) is May (4.06").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in July
Jefferson, IA
- Average rainfall days in July: 14.1 days
The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is February (3.4 days).
Average snowfall in July
Jefferson, IA
- Average snowfall in July: 0"
The month with the highest snowfall is January (4.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Jefferson, IA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Jefferson, IA
- Average daylight in July: 14h and 5min
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 12min).
- Average sunshine in July: 10h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in July
Jefferson, IA
- Average sunshine days in July: 14.3 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is June (11.1 days).
Average UV index in July
Jefferson, IA
- Average UV index in July: 6
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in July
Jefferson, IA
- Average cloud cover in July: 30
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July and September (Cloud cover 30).
Average visibility in July
Jefferson, IA
- Average visibility in July: 5mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Jefferson, Iowa, USA
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