Last updated: June 24, 2025
The average temperature in Blair, United States during December is 7°C (45°F). Expect a minimum of -8°C (18°F) and a maximum of 29°C (84°F) throughout the month. With precipitation totaling 26 mm (1.0 in) over 2 days, you might want to keep an umbrella handy. Furthermore, the average humidity lingers around 84%, adding a touch of dampness to the air.
In December, in Blair, the average temperature is 7°C (45°F). The maximum can reach 29°C (84°F), while the minimum can be as low as -8°C (18°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.
In Blair in December, the precipitation amount is 26 mm (1.0 in) over the course of 2 days.
In Blair in December, humidity is 84%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and necessitating extra layers to stay warm while exploring the sights.
In Blair in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Blair for better planning.
UV Risk Categories
Weather in Blair varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Blair, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 5°C (40°F) | 36 mm (1.4 inches) | 76% | moderate |
February Weather | 5°C (42°F) | 27 mm (1.0 inches) | 76% | high |
March Weather | 13°C (55°F) | 64 mm (2.5 inches) | 70% | very high |
April Weather | 16°C (61°F) | 83 mm (3.3 inches) | 72% | very high |
May Weather | 22°C (71°F) | 125 mm (4.9 inches) | 82% | extreme |
June Weather | 27°C (81°F) | 66 mm (2.6 inches) | 82% | extreme |
July Weather | 29°C (85°F) | 29 mm (1.1 inches) | 80% | extreme |
August Weather | 28°C (83°F) | 36 mm (1.4 inches) | 72% | extreme |
September Weather | 24°C (76°F) | 84 mm (3.3 inches) | 64% | very high |
October Weather | 17°C (63°F) | 74 mm (2.9 inches) | 71% | high |
November Weather | 11°C (51°F) | 19 mm (0.8 inches) | 81% | moderate |
December Weather | 7°C (45°F) | 26 mm (1.0 inches) | 84% | moderate |