Contents
- Weather in June
- Frequently asked questions
- Average temperature in June
- Average pressure in June
- Average wind speed in June
- Average humidity in June
- Average rainfall in June
- Average rainfall days in June
- Average snowfall in June
- Average snowfall days in June
- Average daylight in June
- Average sunshine in June
- Average sunshine days in June
- Average UV index in June
- Average cloud cover in June
- Average visibility in June
Weather in June
Temperature
The start of June signals an increase in the average high-temperature, moving from an agreeable 70.9°F (21.6°C) in May to a warm 79.9°F (26.6°C). June witnesses an average nighttime temperature of 63.7°F (17.6°C) in Merrimac.Humidity
In June, the average relative humidity in Merrimac is 82%.Rainfall
In Merrimac, during June, the rain falls for 17.1 days and regularly aggregates up to 4.17" (106mm) of precipitation. In Merrimac, during the entire year, the rain falls for 140.1 days and collects up to 29.92" (760mm) of precipitation.Snowfall
In Merrimac, snow does not fall in May through September.Daylight
The month with the longest days is June, with an average of 15h and 6min of daylight.On the first day of the month, sunrise is at 5:36 am and sunset at 8:33 pm. On the last day of June, in Merrimac, sunrise is at 5:38 am and sunset at 8:43 pm CDT.
Sunshine
In June, the average sunshine is 9.8h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A typical high UV index of 6 in June suggests the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are June temperatures?
What is the average humidity in June?
How many days does it rain in June?
When it does not snow?
When are the longest days?
How many hours of daylight does Merrimac have in June?
When is the sunrise / sunset in June?
How many hours of sunshine does Merrimac have in June?
What is the month with the highest UV index?
How high is the UV index in June?
Average temperature in June
Merrimac, IA
- Average high temperature in June: 79.9°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in June: 63.7°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in June
Merrimac, IA
- Average pressure in June: 29.9"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in June
Merrimac, IA
- Average wind speed in June: 7.9mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).
Average humidity in June
Merrimac, IA
- Average humidity in June: 82%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in June
Merrimac, IA
- Average rainfall in June: 4.17"
The wettest month (with the highest rainfall) is May (4.29").
The driest months (with the least rainfall) are February and December (1.38").
Average rainfall days in June
Merrimac, IA
- Average rainfall days in June: 17.1 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (4.6 days).
Average snowfall in June
Merrimac, IA
- Average snowfall in June: 0"
The month with the highest snowfall is January (4.76").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in June
Merrimac, IA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Merrimac, IA
- Average daylight in June: 15h and 1min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in June: 9h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in June
Merrimac, IA
- Average sunshine days in June: 10.7 days
The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in June
Merrimac, IA
- Average UV index in June: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in June
Merrimac, IA
- Average cloud cover in June: 33
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are July, August and September (Cloud cover 31).
Average visibility in June
Merrimac, IA
- Average visibility in June: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Merrimac, Iowa, USA
Weather forecast for your location
2. Allow the app to use your location