December, the first month of the winter in
Lom Sak District, is still a hot month, with an average temperature varying between 17.1°C (62.8°F) and 30.9°C (87.6°F).
Temperature
In Lom Sak District, the month of December registers the lowest temperatures, averaging 30.9°C (87.6°F) at the peak and 17.1°C (62.8°F) at the lowest.
Heat index
During December, the heat index is evaluated at a torrid 36°C (96.8°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', combines both the air temperature and the humidity level to give a perceived human temperature. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
The average relative humidity in December is 65%.
Rainfall
December is the month with the least rainfall. Rain falls for 1 days and accumulates 5mm (0.2") of precipitation.
Daylight
December has the shortest days of the year, with an average of 11h and 6min of daylight.
On the first day of December in Lom Sak District, sunrise is at 06:28 and sunset at 17:40. On the last day of the month, sunrise is at 06:43 and sunset at 17:52 +07.