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
In Griswold, the month of January registers the lowest temperatures, averaging 28.4°F (-2°C) at the peak and 15.1°F (-9.4°C) at the lowest.Humidity
January is the most humid month, with an average relative humidity of 82%.Rainfall
The month with the least rainfall is January, when the rain falls for 3.8 days and typically collects 0.59" (15mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Griswold, in January, snow falls for 8.7 days, with typically accumulated 2.09" (53mm) of snow. Throughout the year, there are 32.3 snowfall days, and 9.41" (239mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 37min.On the first day of the month, sunrise is at 7:46 am and sunset at 5:01 pm. On the last day of January, sunrise is at 7:32 am and sunset at 5:35 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 4.5h of sunshine.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: A maximum high daily UV index of 2 during January translates into the following directions:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
How cold is it in January?
What is the most humid month?
What is the average humidity in January?
What is the driest month in Griswold?
How much does it rain in January?
How much does it snow in January?
How many hours of daylight does Griswold have in January?
When are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Griswold have in January?
When is the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Griswold, IA
- Average high temperature in January: 28.4°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in January: 15.1°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure in January
Griswold, 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
Griswold, IA
- Average wind speed in January: 10.5mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in January
Griswold, IA
- Average humidity in January: 82%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (69%).
Average rainfall in January
Griswold, IA
- Average rainfall in January: 0.59"
The wettest month (with the highest rainfall) is June (3.7").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in January
Griswold, IA
- Average rainfall days in January: 3.8 days
The month with the highest number of rainy days is June (16.4 days).
The month with the least rainy days is February (3.1 days).
Average snowfall in January
Griswold, IA
- Average snowfall in January: 2.09"
The month with the highest snowfall is February (2.36").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Griswold, IA
- Average snowfall days in January: 8.7 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Griswold, 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 18min).
- Average sunshine in January: 4h and 3min
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 30min).
Average sunshine days in January
Griswold, IA
- Average sunshine days in January: 18.9 days
The month with the most sunshine days is December (21.2 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in January
Griswold, IA
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in January
Griswold, IA
- Average cloud cover in January: 52
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in January
Griswold, 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).
Griswold, Iowa, USA
Weather forecast for your location
2. Allow the app to use your location