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, characterized by an average high temperature of 28.4°F (-2°C) and a low temperature of 14.9°F (-9.5°C), is generally the coldest month.Humidity
The months with the highest humidity are January, February and June, with an average relative humidity of 82%.Rainfall
The month with the least rainfall in Greenfield is January, when the rain falls for 4 days and typically collects 0.87" (22mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Greenfield, in January, snow falls for 9.6 days, with typically accumulated 3.78" (96mm) of snow. Throughout the year, in Greenfield, Iowa, there are 35.5 snowfall days, and 15.71" (399mm) of snow is accumulated.Daylight
In Greenfield, Iowa, the average length of the day in January is 9h and 36min.On the first day of the month, sunrise is at 7:43 am and sunset at 4:59 pm. On the last day of January, in Greenfield, Iowa, sunrise is at 7:30 am and sunset at 5:32 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 4.4h of sunshine.UV index
With an average maximum UV index of 1, January is the month with the lowest UV index. 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: A typical high UV index of 1 in January suggests the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Greenfield?
How cold is January in Greenfield?
What is the most humid month in Greenfield?
What is the average humidity in January in Greenfield?
What is the driest month in Greenfield?
How many days does it rain in January in Greenfield?
How much does it snow in Greenfield in January?
How many hours of daylight does Greenfield have in January?
When is the sunrise / sunset in January in Greenfield?
What is the month with the least sunshine in Greenfield?
How long on average sun shines in January in Greenfield?
When is the lowest UV index in Greenfield?
What is the UV index reading in January in Greenfield?
Average temperature in January
Greenfield, IA
- Average high temperature in January: 28.4°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in January: 14.9°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 (14.9°F).
Average pressure in January
Greenfield, 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
Greenfield, IA
- Average wind speed in January: 10.7mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in January
Greenfield, IA
- Average humidity in January: 82%
The months with the highest relative humidity are January, February and June (82%).
The month with the lowest relative humidity is October (70%).
Average rainfall in January
Greenfield, IA
- Average rainfall in January: 0.87"
The wettest month (with the highest rainfall) is June (4.49").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in January
Greenfield, IA
- Average rainfall days in January: 4 days
The month with the highest number of rainy days is June (18.5 days).
The month with the least rainy days is January (4 days).
Average snowfall in January
Greenfield, IA
- Average snowfall in January: 3.78"
The month with the highest snowfall is February (4.41").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Greenfield, 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
Greenfield, 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 2min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in January
Greenfield, IA
- Average sunshine days in January: 18.3 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is June (9.6 days).
Average UV index in January
Greenfield, IA
- Average UV index in January: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in January
Greenfield, IA
- Average cloud cover in January: 53
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in January
Greenfield, IA
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Greenfield, Iowa, USA
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