December weather forecastHartley, TX
December
Weather in December
December, the first month of the winter in Hartley, is also a frosty month, with an average temperature ranging between min 28.8°F (-1.8°C) and max 47.7°F (8.7°C).Temperature
Hartley records the coldest temperatures in December, averaging a high of 47.7°F (8.7°C) and a low of 28.8°F (-1.8°C).Humidity
December is the most humid month, with an average relative humidity of 56%.Rainfall
In December, the rain falls for 3.2 days. Throughout December, 0.51" (13mm) of precipitation is accumulated. In Hartley, during the entire year, the rain falls for 83.2 days and collects up to 12.01" (305mm) of precipitation.Snowfall
Months with snowfall in Hartley are January through May, October through December. In December, in Hartley, it is snowing for 3.4 days. Throughout December, 1.22" (31mm) of snow is accumulated. Throughout the year, there are 14.8 snowfall days, and 5.98" (152mm) of snow is accumulated.Daylight
The month with the shortest days in Hartley is December, with an average of 9h and 48min of daylight.On the first day of the month, sunrise is at 7:42 am and sunset at 5:35 pm. On the last day of December, sunrise is at 7:59 am and sunset at 5:46 pm CST.
Sunshine
The month with the least sunshine is December, with an average of 6.8h of sunshine.UV index
With an average maximum UV index of 2, December is the month with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: In December, the maximum UV index of 2 translates into these guidelines:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Hartley, TX
- Average high temperature in December: 47.7°F
The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is December (47.7°F).
- Average low temperature in December: 28.8°F
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is December (28.8°F).
Average pressure in December
Hartley, TX
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).
Average wind speed in December
Hartley, TX
- Average wind speed in December: 11mph
The windiest month (with the highest average wind speed) is April (13.4mph).
The calmest month (with the lowest average wind speed) is August (10.4mph).
Average humidity in December
Hartley, TX
- Average humidity in December: 56%
The month with the highest relative humidity is December (56%).
The month with the lowest relative humidity is April (40%).
Average rainfall in December
Hartley, TX
- Average rainfall in December: 0.51"
The wettest month (with the highest rainfall) is July (2.17").
The driest months (with the least rainfall) are February and November (0.35").
Average rainfall days in December
Hartley, TX
- Average rainfall days in December: 3.2 days
The month with the highest number of rainy days is July (14.6 days).
The month with the least rainy days is February (2.1 days).
Average snowfall in December
Hartley, TX
- Average snowfall in December: 1.22"
The month with the highest snowfall is January (1.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Hartley, TX
- Average snowfall days in December: 3.4 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hartley, TX
- Average daylight in December: 9h and 48min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 6h and 48min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in December
Hartley, TX
- Average sunshine days in December: 24.8 days
The month with the most sunshine days is January (25.7 days).
The month with the least sunshine days is July (12.7 days).
Average UV index in December
Hartley, TX
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Hartley, TX
- Average cloud cover in December: 23
The month with the most cloud cover is February (Cloud cover 24).
The month with the least cloud cover is June (Cloud cover 14).
Average visibility in December
Hartley, TX
- Average visibility in December: 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).
