Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
Entering December, the average high-temperature is recorded at a hot 31.8°C (89.2°F), exhibiting a minimal shift from November's 28.9°C (84°F). Armstrong records a marked daily temperature contrast, with an average low-temperature of 18°C (64.4°F) during the nights of December.Heat index
For most parts of December, the heat index is computed to be a hot 34°C (93.2°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.Research indicates the heat index considers values in shaded locales and with light winds. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'real feel' or 'felt air temperature', measures the perceived warmth when incorporating the humidity present in the air. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
Humidity
In December, the average relative humidity is 51%.Rainfall
The month with the most rainfall in Armstrong is December, when the rain falls for 9.6 days and typically aggregates up to 66mm (2.6") of precipitation.Daylight
December has the longest days of the year, with an average of 14h and 18min of daylight.On the first day of the month, sunrise is at 05:50 and sunset at 20:00. On the last day of December, sunrise is at 06:01 and sunset at 20:17 -03.
Sunshine
December has the most sunshine of the year, with an average of 10.8h of sunshine.UV index
January and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A daily maximum UV index of 7 in December translates into the following instructions:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. 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.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Armstrong in December?
What is the average humidity in December in Armstrong?
What is the wettest month in Armstrong?
How much does it rain in Armstrong in December?
When are the longest days in Armstrong?
How many hours of daylight does Armstrong have in December?
When are sunrise and sunset in December in Armstrong?
What month has the most sunshine in Armstrong?
How many hours of sunshine does Armstrong have in December?
What are the months with the highest UV index in Armstrong?
What is the UV index reading in December in Armstrong?
Average temperature in December
Armstrong, Argentina
- Average high temperature in December: 31.8°C
The warmest month (with the highest average high temperature) is January (33.3°C).
The month with the lowest average high temperature is July (15.8°C).
- Average low temperature in December: 18°C
The month with the highest average low temperature is January (18.8°C).
The coldest month (with the lowest average low temperature) is July (7.2°C).
Average pressure in December
Armstrong, Argentina
- Average pressure in December: 1009.8mbar
The month with the highest atmospheric pressure is July (1018.9mbar).
The month with the lowest atmospheric pressure is December (1009.8mbar).
Average wind speed in December
Armstrong, Argentina
- Average wind speed in December: 12.5km/h
The windiest months (with the highest average wind speed) are August and September (14.9km/h).
The calmest months (with the lowest average wind speed) are February and March (11.5km/h).
Average humidity in December
Armstrong, Argentina
- Average humidity in December: 51%
The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is January (50%).
Average rainfall in December
Armstrong, Argentina
- Average rainfall in December: 66mm
The wettest month (with the highest rainfall) is December (66mm).
The driest month (with the least rainfall) is July (8mm).
Average rainfall days in December
Armstrong, Argentina
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is October (12.1 days).
The month with the least rainy days is June (4.2 days).
Average daylight in December /
Average sunshine in December
Armstrong, Argentina
- Average daylight in December: 14h and 2min
The month with the longest days is December (Average daylight: 14h and 18min).
The month with the shortest days is June (Average daylight: 10h and 0min).
- Average sunshine in December: 10h and 5min
The month with the most sunshine is December (Average sunshine: 10h and 48min).
The month with the least sunshine is May (Average sunshine: 7h and 24min).
Average sunshine days in December
Armstrong, Argentina
- Average sunshine days in December: 20.2 days
The month with the most sunshine days is August (25.7 days).
The month with the least sunshine days is October (17.9 days).
Average UV index in December
Armstrong, Argentina
- Average UV index in December: 7
The months with the highest UV index are January and December (UV index 7).
The month with the lowest UV index is July (UV index 3).
Average cloud cover in December
Armstrong, Argentina
- Average cloud cover in December: 18
The month with the most cloud cover is May (Cloud cover 36).
The month with the least cloud cover is January (Cloud cover 16).
Average visibility in December
Armstrong, Argentina
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, June, July, August, September, November and December (10km).
The months with the lowest visibility are May and October (9km).
