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
Troy notes the coldest temperatures in January, with a high average of 36.3°F (2.4°C) and a low of 23.2°F (-4.9°C).Humidity
The average relative humidity in January is 76%.Rainfall
January is the month with the least rainfall. Rain falls for 6.3 days and accumulates 1.38" (35mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. The months with the most snowfall are January and February, with an average 2.68" (68mm) of accumulated snow.Daylight
In Troy, the average length of the day in January is 9h and 48min.On the first day of January, sunrise is at 7:22 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 5:23 pm CST.
Sunshine
January has the least sunshine of the year, with an average of 4.5h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 2 in January interprets into the following recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Around midday, solar radiation is most harmful; hence, exposure should be limited. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
How cold is January?
What is the average humidity in January in Troy?
What is the driest month?
How much does it rain in January?
When does it snow the most?
How much does it snow in January?
How many hours of daylight does Troy have in January?
What time are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Troy have in January?
What are the months with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Troy, MO
- Average high temperature in January: 36.3°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (36.3°F).
- Average low temperature in January: 23.2°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure in January
Troy, 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 (29.91"Hg).
Average wind speed in January
Troy, MO
- Average wind speed in January: 9.1mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in January
Troy, MO
- Average humidity in January: 76%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall in January
Troy, MO
- Average rainfall in January: 1.38"
The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is January (1.38").
Average rainfall days in January
Troy, MO
- Average rainfall days in January: 6.3 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in January
Troy, MO
- Average snowfall in January: 2.68"
The months with the highest snowfall are January and February (2.68").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Troy, MO
- Average snowfall days in January: 6.2 days
The month with the highest number of snowfall days is January (6.2 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
Troy, MO
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January: 4h and 3min
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 30min).
Average sunshine days in January
Troy, MO
- Average sunshine days in January: 19.2 days
The month with the most sunshine days is December (19.6 days).
The month with the least sunshine days is May (11.9 days).
Average UV index in January
Troy, 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
Troy, MO
- Average cloud cover in January: 51
The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 30).
Average visibility in January
Troy, MO
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Troy, Missouri, USA
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