January weather forecastHartwick, IA
January
Weather in January
January, the same as December, in Hartwick, Iowa, is another subzero cold winter month, with an average temperature fluctuating between 27°F (-2.8°C) and 13.6°F (-10.2°C).Temperature
Hartwick reaches its lowest average temperatures in January, measuring 27°F (-2.8°C) at the peak and 13.6°F (-10.2°C) at the lowest.Humidity
The months with the highest humidity in Hartwick are January, February and July, with an average relative humidity of 84%.Rainfall
January is the month with the least rainfall in Hartwick. Rain falls for 5 days and accumulates 1.02" (26mm) of precipitation.Snowfall
Months with snowfall in Hartwick are January through May, October through December. The month with the most snowfall is January, when snow falls for 9.8 days and typically aggregates up to 4.49" (114mm) of snow.Daylight
In Hartwick, the average length of the day in January is 9h and 34min.On the first day of January in Hartwick, sunrise is at 7:36 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:22 pm CST.
Sunshine
With an average of 4h of sunshine, January has the least sunshine of the year.UV index
January is the month with the lowest UV index in Hartwick, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 1 in January converts into the following recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Hartwick, IA
- Average high temperature in January: 27°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in January: 13.6°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).
Average pressure in January
Hartwick, 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 (29.89"Hg).
Average wind speed in January
Hartwick, IA
- Average wind speed in January: 10.7mph
The windiest months (with the highest average wind speed) are January and April (10.7mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in January
Hartwick, IA
- Average humidity in January: 84%
The months with the highest relative humidity are January, February and July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in January
Hartwick, IA
- Average rainfall in January: 1.02"
The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in January
Hartwick, IA
- Average rainfall days in January: 5 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (4.6 days).
Average snowfall in January
Hartwick, IA
- Average snowfall in January: 4.49"
The month with the highest snowfall is January (4.49").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Hartwick, IA
- Average snowfall days in January: 9.8 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 January /
Average sunshine in January
Hartwick, IA
- Average daylight in January: 9h and 36min
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: 4h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in January
Hartwick, IA
- Average sunshine days in January: 17.6 days
The month with the most sunshine days is December (18.5 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in January
Hartwick, IA
- Average UV index in January: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in January
Hartwick, 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 August and September (Cloud cover 30).
Average visibility in January
Hartwick, IA
- Average visibility in January: 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).
