Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January, characterized by an average high temperature of 25.2°F (-3.8°C) and a low temperature of 13.3°F (-10.4°C), is generally the coldest month.Humidity
The months with the highest humidity in Castle Grove are January and February, with an average relative humidity of 86%.Rainfall
The months with the least rainfall are January and February Rain falls for 5.2 days and accumulates 1.26" (32mm) of rain.Snowfall
January through April, October through December are months with snowfall in Castle Grove. The month with the most snowfall in Castle Grove is January, when snow falls for 12.1 days and typically aggregates up to 5.04" (128mm) of snow.Daylight
In January, the average length of the day in Castle Grove is 9h and 31min.On the first day of the month, sunrise is at 7:34 am and sunset at 4:43 pm. On the last day of January, in Castle Grove, sunrise is at 7:19 am and sunset at 5:17 pm CST.
Sunshine
January has the least sunshine of the year in Castle Grove, with an average of 3.8h of sunshine.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Castle Grove. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In January, the average maximum UV index of 1 translates into the following recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Frequently asked questions
What month is the coldest in Castle Grove?
How cold is January in Castle Grove?
What is the most humid month in Castle Grove?
What is the average humidity in January in Castle Grove?
What is the driest month in Castle Grove?
How many days does it rain in January in Castle Grove?
What is the snowiest month in Castle Grove?
How many days does it snow in January in Castle Grove?
What is the average length of the day in January in Castle Grove?
When is the sunrise / sunset in January in Castle Grove?
What is the month with the least sunshine in Castle Grove?
How long on average sun shines in January in Castle Grove?
What are the months with the lowest UV index in Castle Grove?
How high is the UV index in January in Castle Grove?
Average temperature in January
Castle Grove, IA
- Average high temperature in January: 25.2°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in January: 13.3°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in January
Castle Grove, IA
- Average pressure in January: 30.13"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in January
Castle Grove, IA
- Average wind speed in January: 10.4mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in January
Castle Grove, IA
- Average humidity in January: 86%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is October (74%).
Average rainfall in January
Castle Grove, IA
- Average rainfall in January: 1.26"
The wettest month (with the highest rainfall) is May (4.25").
The driest months (with the least rainfall) are January and February (1.26").
Average rainfall days in January
Castle Grove, IA
- Average rainfall days in January: 5.2 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is January (5.2 days).
Average snowfall in January
Castle Grove, IA
- Average snowfall in January: 5.04"
The month with the highest snowfall is January (5.04").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Castle Grove, IA
- Average snowfall days in January: 12.1 days
The month with the highest number of snowfall days is January (12.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Castle Grove, IA
- Average daylight in January: 9h and 3min
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 January: 3h and 5min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in January
Castle Grove, IA
- Average sunshine days in January: 15.8 days
The month with the most sunshine days is September (17 days).
The month with the least sunshine days is June (10.5 days).
Average UV index in January
Castle Grove, IA
- Average UV index in January: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Castle Grove, IA
- Average cloud cover in January: 60
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in January
Castle Grove, IA
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
Castle Grove, Iowa, USA
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