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
Roby, Texas, registers an average high-temperature of a still refreshing 56.3°F (13.5°C) with the arrival of January, showing minor deviation from the preceding month. During the January nights, an average temperature of 37.2°F (2.9°C) is observed.Humidity
In Roby, the average relative humidity in January is 50%.Rainfall
The months with the least rainfall in Roby are January and February Rain falls for 3.1 days and accumulates 0.51" (13mm) of rain.Snowfall
Months with snowfall are January through April, November and December. In Roby, in January, during 0.9 snowfall days, 0.16" (4mm) of snow is typically accumulated. In Roby, Texas, during the entire year, snow falls for 4.7 days and aggregates up to 2.91" (74mm) of snow.Daylight
In Roby, the average length of the day in January is 10h and 17min.On the first day of the month, sunrise is at 7:43 am and sunset at 5:46 pm. On the last day of January, sunrise is at 7:36 am and sunset at 6:12 pm CST.
Sunshine
The average sunshine in January in Roby, Texas, is 7.8h.UV index
The average daily maximum UV index in January in Roby, Texas, is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In January, the UV index of 4 transforms into the following advice:
Exercise prevention - Precautions against solar damage are endorsed. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average January temperature in Roby?
What is the average humidity in January in Roby?
What is the driest month in Roby?
How many days does it rain in January in Roby?
How many days does it snow in January in Roby?
How many hours of daylight does Roby have in January?
When are sunrise and sunset in January in Roby?
How many hours of sunshine does Roby have in January?
How high is the UV index in January in Roby?
Average temperature in January
Roby, TX
- Average high temperature in January: 56.3°F
The warmest month (with the highest average high temperature) is August (96.4°F).
The month with the lowest average high temperature is December (55.9°F).
- Average low temperature in January: 37.2°F
The month with the highest average low temperature is August (75.9°F).
The coldest month (with the lowest average low temperature) is January (37.2°F).
Average pressure in January
Roby, TX
- Average pressure in January: 30.15"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in January
Roby, TX
- Average wind speed in January: 10.9mph
The windiest month (with the highest average wind speed) is April (14mph).
The calmest month (with the lowest average wind speed) is September (10.2mph).
Average humidity in January
Roby, TX
- Average humidity in January: 50%
The month with the highest relative humidity is September (55%).
The month with the lowest relative humidity is August (44%).
Average rainfall in January
Roby, TX
- Average rainfall in January: 0.51"
The wettest month (with the highest rainfall) is May (2.17").
The driest months (with the least rainfall) are January and February (0.51").
Average rainfall days in January
Roby, TX
- Average rainfall days in January: 3.1 days
The months with the highest number of rainy days are May and September (11.2 days).
The month with the least rainy days is January (3.1 days).
Average snowfall in January
Roby, TX
- Average snowfall in January: 0.16"
The month with the highest snowfall is February (1.18").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Roby, TX
- Average snowfall days in January: 0.9 days
The month with the highest number of snowfall days is December (1.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Roby, TX
- Average daylight in January: 10h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January: 7h and 5min
The months with the most sunshine are June and July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in January
Roby, TX
- Average sunshine days in January: 26.8 days
The month with the most sunshine days is January (26.8 days).
The month with the least sunshine days is September (17.6 days).
Average UV index in January
Roby, TX
- Average UV index in January: 4
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in January
Roby, TX
- Average cloud cover in January: 19
The months with the most cloud cover are March, September and December (Cloud cover 25).
The months with the least cloud cover are June and August (Cloud cover 16).
Average visibility in January
Roby, TX
- 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).
Roby, Texas, USA
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