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 Defiance's coldest month, registering average high temperatures of 27°F (-2.8°C) and lows of 14°F (-10°C).Humidity
The most humid month is January, with an average relative humidity of 83%.Rainfall
The month with the least rainfall in Defiance is January, when the rain falls for 3.6 days and typically collects 0.71" (18mm) of precipitation.Snowfall
Months with snowfall in Defiance are January through May, October through December. In Defiance, in January, during 10.2 snowfall days, 3.35" (85mm) of snow is typically accumulated. Throughout the year, there are 36.8 snowfall days, and 14.53" (369mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 33min.On the first day of the month, sunrise is at 7:48 am and sunset at 5:00 pm. On the last day of January, sunrise is at 7:34 am and sunset at 5:34 pm CST.
Sunshine
January has the least sunshine of the year in Defiance, with an average of 4.2h of sunshine.UV index
In Defiance, Iowa, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.Note: In January, the maximum UV index of 2 suggests this advice:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. It's recommended to limit sun exposure when its radiation is at its peak during midday. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Frequently asked questions
What part of the year is the coldest in Defiance?
How cold is January in Defiance?
What is the most humid month in Defiance?
What is the average humidity in January in Defiance?
What is the driest month in Defiance?
How many days does it rain in January in Defiance?
How much does it snow in Defiance in January?
How many hours of daylight does Defiance have in January?
When are sunrise and sunset in January in Defiance?
What is the month with the least sunshine in Defiance?
How long on average sun shines in January in Defiance?
What is the UV index intensity in January in Defiance?
Average temperature in January
Defiance, IA
- Average high temperature in January: 27°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in January: 14°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (14°F).
Average pressure in January
Defiance, 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
Defiance, IA
- Average wind speed in January: 10.9mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).
Average humidity in January
Defiance, IA
- Average humidity in January: 83%
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are April and October (68%).
Average rainfall in January
Defiance, IA
- Average rainfall in January: 0.71"
The wettest month (with the highest rainfall) is May (3.82").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days in January
Defiance, IA
- Average rainfall days in January: 3.6 days
The month with the highest number of rainy days is June (16.5 days).
The month with the least rainy days is February (3 days).
Average snowfall in January
Defiance, IA
- Average snowfall in January: 3.35"
The month with the highest snowfall is February (3.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Defiance, IA
- Average snowfall days in January: 10.2 days
The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Defiance, IA
- Average daylight in January: 9h and 4min
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 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in January
Defiance, IA
- Average sunshine days in January: 18 days
The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is June (11.9 days).
Average UV index in January
Defiance, 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
Defiance, 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
Defiance, 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).
Defiance, Iowa, USA
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