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 Derby, Ohio, January is the coldest month, with temperatures averaging a high of 33.4°F (0.8°C) and a low of 21.6°F (-5.8°C).Humidity
With an average relative humidity of 83%, January is the most humid month.Rainfall
In Derby, Ohio, in January, it is raining for 7.6 days, with typically 0.94" (24mm) of accumulated precipitation. In Derby, during the entire year, the rain falls for 134.1 days and collects up to 14.53" (369mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. January is the month with the most snowfall. Snow falls for 8.7 days and accumulates 1.22" (31mm) of snow.Daylight
In Derby, the average length of the day in January is 9h and 44min.On the first day of January, sunrise is at 7:53 am and sunset at 5:18 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:50 pm EST.
Sunshine
The month with the least sunshine is January, with an average of 3.6h of sunshine.UV index
The months with the lowest UV index in Derby are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.Note: In January, a regular UV index of 2 translates into these guidelines:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. 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. 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 time of the year is the coldest in Derby?
How cold is January in Derby?
What is the most humid month in Derby?
What is the average humidity in January in Derby?
How much does it rain in Derby in January?
What is the snowiest month in Derby?
How many days does it snow in January in Derby?
How many hours of daylight does Derby have in January?
What time are sunrise and sunset in January in Derby?
What is the month with the least sunshine in Derby?
How long on average sun shines in January in Derby?
What are the months with the lowest UV index in Derby?
How high is the UV index in January in Derby?
Average temperature in January
Derby, OH
- Average high temperature in January: 33.4°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in January: 21.6°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in January
Derby, OH
- Average pressure in January: 30.14"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in January
Derby, OH
- Average wind speed in January: 9.8mph
The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in January
Derby, OH
- Average humidity in January: 83%
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in January
Derby, OH
- Average rainfall in January: 0.94"
The wettest month (with the highest rainfall) is May (1.81").
The driest month (with the least rainfall) is September (0.87").
Average rainfall days in January
Derby, OH
- Average rainfall days in January: 7.6 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in January
Derby, OH
- Average snowfall in January: 1.22"
The month with the highest snowfall is January (1.22").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Derby, OH
- Average snowfall days in January: 8.7 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Derby, OH
- Average daylight in January: 9h and 4min
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 24min).
- Average sunshine in January: 3h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in January
Derby, OH
- Average sunshine days in January: 17 days
The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is May (11.5 days).
Average UV index in January
Derby, OH
- Average UV index in January: 2
The months with the highest UV index are May, 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
Derby, OH
- Average cloud cover in January: 61
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in January
Derby, OH
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Derby, Ohio, USA
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