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 Washington, the month of January is known for its lowest average temperatures, reaching a high of 38.1°F (3.4°C) and a low of 24.1°F (-4.4°C).Humidity
In Washington, Missouri, the average relative humidity in January is 75%.Rainfall
In January, the rain falls for 6.2 days. Throughout January, 1.46" (37mm) of precipitation is accumulated. Throughout the year, in Washington, Missouri, there are 133.1 rainfall days, and 27.24" (692mm) of precipitation is accumulated.Snowfall
January through March, September, November and December are months with snowfall in Washington. In January, it is snowing for 5.1 days. Throughout January, 1.61" (41mm) of snow is accumulated. In Washington, Missouri, during the entire year, snow falls for 16.6 days and aggregates up to 5.87" (149mm) of snow.Daylight
In Washington, the average length of the day in January is 9h and 50min.On the first day of January, sunrise is at 7:21 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:24 pm CST.
Sunshine
With an average of 4.6h of sunshine, January has the least sunshine of the year.UV index
The months with the lowest UV index in Washington, Missouri, are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 2 during January translates into the following directions:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
What part of the year is the coldest in Washington?
How cold does it get in Washington in January?
What is the average humidity in January in Washington?
How much does it rain in Washington in January?
How much does it snow in Washington in January?
What is the average length of the day in January in Washington?
What time are sunrise and sunset in January in Washington?
What is the month with the least sunshine in Washington?
How many hours of sunshine does Washington have in January?
What is the month with the lowest UV index in Washington?
How high is the UV index in January in Washington?
Average temperature in January
Washington, MO
- Average high temperature in January: 38.1°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (38.1°F).
- Average low temperature in January: 24.1°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).
Average pressure in January
Washington, MO
- 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 (29.92"Hg).
Average wind speed in January
Washington, MO
- Average wind speed in January: 8.5mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in January
Washington, MO
- Average humidity in January: 75%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (72%).
Average rainfall in January
Washington, MO
- Average rainfall in January: 1.46"
The wettest months (with the highest rainfall) are April and May (3.23").
The driest month (with the least rainfall) is February (1.42").
Average rainfall days in January
Washington, MO
- Average rainfall days in January: 6.2 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is January (6.2 days).
Average snowfall in January
Washington, MO
- Average snowfall in January: 1.61"
The month with the highest snowfall is February (2.09").
The months with the least snowfall are April, May, June, July, August and October (0").
Average snowfall days in January
Washington, MO
- Average snowfall days in January: 5.1 days
The month with the highest number of snowfall days is January (5.1 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Washington, MO
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January: 4h and 4min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in January
Washington, MO
- Average sunshine days in January: 20.3 days
The month with the most sunshine days is December (20.6 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in January
Washington, MO
- 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
Washington, MO
- Average cloud cover in January: 50
The months with the most cloud cover are January and February (Cloud cover 50).
The months with the least cloud cover are June, July and August (Cloud cover 30).
Average visibility in January
Washington, MO
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, June, July, September, October, November and December (6mi).
The months with the lowest visibility are May and August (5mi).
Washington, Missouri, USA
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