July weather forecastCalmar, IA
July
Weather in July
Hot and sun-drenched would accurately describe July in Calmar, Iowa as the temperatures reach their peak for the year with highs of 78.4°F (25.8°C). This is the warmest period, with summer in its zenith and the city bathed in abundant sunshine. Beach and water activities come to the forefront, with people heading towards bodies of water to cool off. Despite the heat, summer nights are pleasantly warm, ideal for late night strolls or idling under the clear skies. It's also the time when the city is buzzing with fun and excitement, hosting an array of summer festivals and events.Temperature
The warmest period is July, when temperatures fluctuate between an average high of 78.4°F (25.8°C) and a low of 61.9°F (16.6°C).Humidity
The average relative humidity in July is 84%.Rainfall
In Calmar, during July, the rain falls for 18 days and regularly aggregates up to 3.15" (80mm) of precipitation. In Calmar, during the entire year, the rain falls for 149 days and collects up to 30.59" (777mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In July, the average length of the day is 15h and 0min.On the first day of July, sunrise is at 5:31 am and sunset at 8:51 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 8:29 pm CDT.
Sunshine
In Calmar, the average sunshine in July is 9.7h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 5 in July interprets into the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Calmar, IA
- Average high temperature in July: 78.4°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (22.3°F).
- Average low temperature in July: 61.9°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (9.7°F).
Average pressure in July
Calmar, IA
- Average pressure in July: 29.96"Hg
The months with the highest atmospheric pressure are January and February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in July
Calmar, IA
- Average wind speed in July: 7.1mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in July
Calmar, IA
- Average humidity in July: 84%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is October (76%).
Average rainfall in July
Calmar, IA
- Average rainfall in July: 3.15"
The wettest month (with the highest rainfall) is June (5.04").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in July
Calmar, IA
- Average rainfall days in July: 18 days
The months with the highest number of rainy days are May and June (20.3 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in July
Calmar, IA
- Average snowfall in July: 0"
The month with the highest snowfall is February (5.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Calmar, IA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Calmar, IA
- 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 0min).
- Average sunshine in July: 9h and 42min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in July
Calmar, IA
- Average sunshine days in July: 8.6 days
The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is June (7.1 days).
Average UV index in July
Calmar, IA
- 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, November and December (UV index 1).
Average cloud cover in July
Calmar, IA
- Average cloud cover in July: 35
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in July
Calmar, IA
- Average visibility in July: 5mi
The months with the highest visibility are March, April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, July and December (5mi).





