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, on average, is the coldest month, registering a high temperature of 27.1°F (-2.7°C) and a low of 15.3°F (-9.3°C).Humidity
The months with the highest humidity are January and July, with an average relative humidity of 84%.Rainfall
January is the month with the least rainfall in Holbrook. Rain falls for 4.8 days and accumulates 1.18" (30mm) of precipitation.Snowfall
Months with snowfall in Holbrook are January through May, October through December. January is the month with the most snowfall in Holbrook. Snow falls for 9.6 days and accumulates 4.8" (122mm) of snow.Daylight
In Holbrook, the average length of the day in January is 9h and 34min.On the first day of January in Holbrook, sunrise is at 7:34 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:21 pm CST.
Sunshine
With an average of 4.1h of sunshine, January has the least sunshine of the year in Holbrook.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Holbrook, Iowa. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: The UV index of 1 during January translates into the following guidance:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Always opt for UVA and UVB-resistant sunglasses on radiant days. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
What is the coldest time of year in Holbrook?
How cold is January in Holbrook?
What is the most humid month in Holbrook?
What is the average humidity in January in Holbrook?
What is the driest month in Holbrook?
How many days does it rain in January in Holbrook?
What is the snowiest month in Holbrook?
How many days does it snow in January in Holbrook?
What is the average length of the day in January in Holbrook?
When is the sunrise / sunset in January in Holbrook?
What is the month with the least sunshine in Holbrook?
How many hours of sunshine does Holbrook have in January?
What is the month with the lowest UV index in Holbrook?
What is the UV index reading in January in Holbrook?
Average temperature in January
Holbrook, IA
- Average high temperature in January: 27.1°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 (27.1°F).
- Average low temperature in January: 15.3°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 (15.3°F).
Average pressure in January
Holbrook, IA
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in January
Holbrook, 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 months (with the lowest average wind speed) are July and August (7mph).
Average humidity in January
Holbrook, IA
- Average humidity in January: 84%
The months with the highest relative humidity are January and July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in January
Holbrook, IA
- Average rainfall in January: 1.18"
The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in January
Holbrook, IA
- Average rainfall days in January: 4.8 days
The months with the highest number of rainy days are May and June (18.5 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in January
Holbrook, IA
- Average snowfall in January: 4.8"
The month with the highest snowfall is January (4.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Holbrook, 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 June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Holbrook, 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 12min).
- Average sunshine in January: 4h and 1min
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 6min).
Average sunshine days in January
Holbrook, IA
- Average sunshine days in January: 18.3 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is June (9.1 days).
Average UV index in January
Holbrook, 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
Holbrook, 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
Holbrook, 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).
Holbrook, Iowa, USA
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