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
The month of January sees the lowest average temperatures, reaching 26.2°F (-3.2°C) at the peak and 13.6°F (-10.2°C) at the low.Humidity
January is the most humid month in Ralston, with an average relative humidity of 84%.Rainfall
January is the month with the least rainfall. Rain falls for 4.6 days and accumulates 0.94" (24mm) of precipitation.Snowfall
Months with snowfall in Ralston are January through May, October through December. In Ralston, in January, snow falls for 11.8 days, with typically accumulated 4.02" (102mm) of snow. Throughout the year, in Ralston, there are 44.8 snowfall days, and 19.8" (503mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 32min.On the first day of the month, sunrise is at 7:46 am and sunset at 4:57 pm. On the last day of January, sunrise is at 7:32 am and sunset at 5:31 pm CST.
Sunshine
January has the least sunshine of the year in Ralston, with an average of 4.2h of sunshine.UV index
The average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 2 during January leads to these instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Direct Sun exposure should be minimized especially during midday when radiation is most intense. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Frequently asked questions
What are the coldest months in Ralston?
How cold is January in Ralston?
What is the most humid month in Ralston?
What is the average humidity in January in Ralston?
What is the driest month in Ralston?
How many days does it rain in January in Ralston?
How much does it snow in Ralston in January?
How many hours of daylight does Ralston have in January?
When are sunrise and sunset in January in Ralston?
What is the month with the least sunshine in Ralston?
How many hours of sunshine does Ralston have in January?
What is the UV index reading in January in Ralston?
Average temperature in January
Ralston, IA
- Average high temperature in January: 26.2°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (26.2°F).
- Average low temperature in January: 13.6°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).
Average pressure in January
Ralston, 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 (29.88"Hg).
Average wind speed in January
Ralston, IA
- Average wind speed in January: 11.1mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).
Average humidity in January
Ralston, IA
- Average humidity in January: 84%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are April and October (69%).
Average rainfall in January
Ralston, IA
- Average rainfall in January: 0.94"
The wettest month (with the highest rainfall) is May (4.29").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in January
Ralston, IA
- Average rainfall days in January: 4.6 days
The month with the highest number of rainy days is June (17.9 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in January
Ralston, IA
- Average snowfall in January: 4.02"
The month with the highest snowfall is February (5.12").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Ralston, IA
- Average snowfall days in January: 11.8 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Ralston, IA
- Average daylight in January: 9h and 3min
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 1min
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 12min).
Average sunshine days in January
Ralston, IA
- Average sunshine days in January: 16.1 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is June (10 days).
Average UV index in January
Ralston, IA
- Average UV index in January: 2
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in January
Ralston, IA
- Average cloud cover in January: 55
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in January
Ralston, IA
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, July, September, October, November and December (6mi).
The months with the lowest visibility are January and August (5mi).
Ralston, Iowa, USA
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