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
During the coldest month, January, temperatures average a high of 29.7°F (-1.3°C) and a low of 17.4°F (-8.1°C).Humidity
The average relative humidity in January is 81%.Rainfall
In Hillsboro, during January, the rain falls for 5.3 days and regularly aggregates up to 1.42" (36mm) of precipitation. Throughout the year, there are 140.1 rainfall days, and 29.92" (760mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. The month with the most snowfall in Hillsboro is January, when snow falls for 9.6 days and typically aggregates up to 4.76" (121mm) of snow.Daylight
The average length of the day in January is 9h and 38min.On the first day of the month, sunrise is at 7:31 am and sunset at 4:49 pm. On the last day of January, in Hillsboro, sunrise is at 7:18 am and sunset at 5:22 pm CST.
Sunshine
The month with the least sunshine in Hillsboro is January, with an average of 4h of sunshine.UV index
With an average maximum UV index of 1, January is the month with the lowest UV index in Hillsboro, Iowa. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 1 in January translates into this advice:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. It's recommended to limit sun exposure when its radiation is at its peak during midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Frequently asked questions
What is the coldest time of year in Hillsboro?
How cold is January in Hillsboro?
What is the average humidity in January in Hillsboro?
How much does it rain in Hillsboro in January?
What is the snowiest month in Hillsboro?
How much does it snow in Hillsboro in January?
How many hours of daylight does Hillsboro have in January?
When are sunrise and sunset in January in Hillsboro?
What is the month with the least sunshine in Hillsboro?
How many hours of sunshine does Hillsboro have in January?
When is the lowest UV index in Hillsboro?
What is the UV index intensity in January in Hillsboro?
Average temperature in January
Hillsboro, IA
- Average high temperature in January: 29.7°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 January: 17.4°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 January
Hillsboro, IA
- Average pressure in January: 30.15"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 January
Hillsboro, IA
- Average wind speed in January: 10.7mph
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 January
Hillsboro, IA
- Average humidity in January: 81%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Hillsboro, IA
- Average rainfall in January: 1.42"
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 January
Hillsboro, IA
- Average rainfall days in January: 5.3 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 January
Hillsboro, IA
- Average snowfall in January: 4.76"
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 January
Hillsboro, IA
- Average snowfall days in January: 9.6 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 January /
Average sunshine in January
Hillsboro, IA
- Average daylight in January: 9h and 4min
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 January: 4h
The month with the most sunshine is July (Average sunshine: 10h).
The month with the least sunshine is January (Average sunshine: 4h).
Average sunshine days in January
Hillsboro, IA
- Average sunshine days in January: 16.2 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 January
Hillsboro, IA
- Average UV index in January: 1
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 January
Hillsboro, IA
- Average cloud cover in January: 56
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 January
Hillsboro, IA
- Average visibility in January: 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).
Hillsboro, Iowa, USA
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