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, with its high-temperature average of 24.3°F (-4.3°C) and a low-temperature average of 11.7°F (-11.3°C), is the coldest month.Humidity
The most humid month is January, with an average relative humidity of 88%.Rainfall
In O'Neill, in January, during 4.5 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. In O'Neill, during the entire year, the rain falls for 139.6 days and collects up to 24.92" (633mm) of precipitation.Snowfall
Months with snowfall in O'Neill are January through April, October through December. The month with the most snowfall is January, when snow falls for 13.7 days and typically aggregates up to 4.29" (109mm) of snow.Daylight
The average length of the day in January is 9h and 29min.On the first day of January, sunrise is at 7:33 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:15 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 3.5h of sunshine.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: In January, the maximum UV index of 1 translates into these guidelines:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
How cold is January?
What is the most humid month?
What is the average humidity in January?
How much does it rain in January?
What is the snowiest month?
How many days does it snow in January?
How many hours of daylight does O'Neill have in January?
When are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does O'Neill have in January?
What are the months with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
O'Neill, IA
- Average high temperature in January: 24.3°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in January: 11.7°F
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in January
O'Neill, 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
O'Neill, IA
- Average wind speed in January: 10.1mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in January
O'Neill, IA
- Average humidity in January: 88%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (75%).
Average rainfall in January
O'Neill, IA
- Average rainfall in January: 1.02"
The wettest months (with the highest rainfall) are May and June (3.54").
The driest month (with the least rainfall) is December (0.98").
Average rainfall days in January
O'Neill, IA
- Average rainfall days in January: 4.5 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (4.1 days).
Average snowfall in January
O'Neill, IA
- Average snowfall in January: 4.29"
The month with the highest snowfall is January (4.29").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
O'Neill, IA
- Average snowfall days in January: 13.7 days
The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
O'Neill, IA
- Average daylight in January: 9h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January: 3h and 3min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in January
O'Neill, IA
- Average sunshine days in January: 14.7 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is May (9.4 days).
Average UV index in January
O'Neill, IA
- Average UV index in January: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in January
O'Neill, IA
- Average cloud cover in January: 63
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in January
O'Neill, IA
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and July (5mi).
O'Neill, Iowa, USA
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