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 Delavan, the month of January is known for its lowest average temperatures, reaching a high of 31.5°F (-0.3°C) and a low of 19.8°F (-6.8°C).Humidity
The average relative humidity in January is 80%.Rainfall
In January, the rain falls for 5.3 days. Throughout January, 1.06" (27mm) of precipitation is accumulated. Throughout the year, in Delavan, there are 131.4 rainfall days, and 20.08" (510mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Delavan. The month with the most snowfall in Delavan is January, when snow falls for 8.4 days and typically aggregates up to 2.87" (73mm) of snow.Daylight
The average length of the day in January in Delavan is 9h and 41min.On the first day of January, sunrise is at 7:21 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:14 pm CST.
Sunshine
January has the least sunshine of the year, with an average of 4h of sunshine.UV index
The months with the lowest UV index in Delavan are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.Note: A maximum high daily UV index of 2 during January translates into the following directions:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Frequently asked questions
What month is the coldest in Delavan?
How cold is January in Delavan?
What is the average humidity in January in Delavan?
How many days does it rain in January in Delavan?
What is the snowiest month in Delavan?
How many days does it snow in January in Delavan?
How many hours of daylight does Delavan have in January?
When are sunrise and sunset in January in Delavan?
What is the month with the least sunshine in Delavan?
How many hours of sunshine does Delavan have in January?
When is the lowest UV index in Delavan?
How high is the UV index in January in Delavan?
Average temperature in January
Delavan, IL
- Average high temperature in January: 31.5°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in January: 19.8°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in January
Delavan, IL
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Delavan, IL
- Average wind speed in January: 10.4mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in January
Delavan, IL
- Average humidity in January: 80%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Delavan, IL
- Average rainfall in January: 1.06"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is February (1.02").
Average rainfall days in January
Delavan, IL
- Average rainfall days in January: 5.3 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in January
Delavan, IL
- Average snowfall in January: 2.87"
The month with the highest snowfall is January (2.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Delavan, IL
- Average snowfall days in January: 8.4 days
The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Delavan, IL
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January: 4h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in January
Delavan, IL
- Average sunshine days in January: 18.3 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in January
Delavan, IL
- 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, November and December (UV index 2).
Average cloud cover in January
Delavan, IL
- Average cloud cover in January: 57
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in January
Delavan, IL
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Delavan, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location
