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 is the coldest month, exhibiting average temperatures of 22.8°F (-5.1°C) at the peak and 10.6°F (-11.9°C) at the base.Humidity
January is the most humid month in Royal, Iowa, with an average relative humidity of 87%.Rainfall
The month with the least rainfall in Royal is January, when the rain falls for 3.1 days and typically collects 0.43" (11mm) of precipitation.Snowfall
Months with snowfall in Royal are January through May, October through December. In Royal, in January, during 10.8 snowfall days, 2.2" (56mm) of snow is typically accumulated. Throughout the year, there are 45.5 snowfall days, and 11.14" (283mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 26min.On the first day of January, sunrise is at 7:52 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:31 pm CST.
Sunshine
The month with the least sunshine in Royal is January, with an average of 4h of sunshine.UV index
The months with the lowest UV index are January and February, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 1 during January translates into these guidelines:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Stay sun-safe with clothing that is both closely woven and worn loosely. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Frequently asked questions
What is the coldest time of year in Royal?
How cold is it in Royal in January?
What is the most humid month in Royal?
What is the average humidity in January in Royal?
What is the driest month in Royal?
How much does it rain in Royal in January?
How much does it snow in Royal in January?
How many hours of daylight does Royal have in January?
What time are sunrise and sunset in January in Royal?
What is the month with the least sunshine in Royal?
How many hours of sunshine does Royal have in January?
What are the months with the lowest UV index in Royal?
What is the UV index reading in January in Royal?
Average temperature in January
Royal, IA
- Average high temperature in January: 22.8°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (22.8°F).
- Average low temperature in January: 10.6°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).
Average pressure in January
Royal, IA
- Average pressure in January: 30.16"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in January
Royal, IA
- Average wind speed in January: 11.1mph
The windiest months (with the highest average wind speed) are January and April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity in January
Royal, IA
- Average humidity in January: 87%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (68%).
Average rainfall in January
Royal, IA
- Average rainfall in January: 0.43"
The wettest month (with the highest rainfall) is June (2.44").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in January
Royal, IA
- Average rainfall days in January: 3.1 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in January
Royal, IA
- Average snowfall in January: 2.2"
The month with the highest snowfall is February (2.72").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Royal, IA
- Average snowfall days in January: 10.8 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Royal, IA
- Average daylight in January: 9h and 2min
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: 4h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in January
Royal, IA
- Average sunshine days in January: 19.1 days
The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in January
Royal, 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 February (UV index 1).
Average cloud cover in January
Royal, IA
- Average cloud cover in January: 58
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in January
Royal, IA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Royal, Iowa, USA
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