January weather forecastBrooklyn, IA
January
Weather in January
January, like December, is a freezing cold winter month in Brooklyn, Iowa, with an average temperature fluctuating between 13.6°F (-10.2°C) and 27°F (-2.8°C).Temperature
The lowest temperatures are recorded in January, with averages reaching a high of 27°F (-2.8°C) and a low of 13.6°F (-10.2°C).Humidity
January, February and July, with an average relative humidity of 84%, are the most humid months in Brooklyn, Iowa.Rainfall
The month with the least rainfall in Brooklyn is January, when the rain falls for 5 days and typically collects 1.02" (26mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. The month with the most snowfall in Brooklyn is January, when snow falls for 9.8 days and typically aggregates up to 4.49" (114mm) of snow.Daylight
In Brooklyn, the average length of the day in January is 9h and 34min.On the first day of the month, sunrise is at 7:36 am and sunset at 4:49 pm. On the last day of January, in Brooklyn, sunrise is at 7:22 am and sunset at 5:23 pm CST.
Sunshine
January has the least sunshine of the year, 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. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum UV index of 1 in January translates into the following recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Brooklyn, 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
Brooklyn, 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
Brooklyn, 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
Brooklyn, 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
Brooklyn, 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
Brooklyn, 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
Brooklyn, 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
Brooklyn, 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
Brooklyn, 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
Brooklyn, 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
Brooklyn, 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
Brooklyn, 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
Brooklyn, 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).
