Climate Insights for Arlington

The climate in Arlington is cool. The average annual temperature is 8°C and approximately 938mm of precipitation falls per year. May is the wettest month, receiving around 136mm of rainfall. Arlington is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, June, August. The coldest months are February, January, December, when temperatures can drop to -12°C. Snowfall occurs from January to December, with around 87cm accumulating over the season.

Arlington has a wide annual temperature range, spanning 40°C from the coldest to warmest months. The warmest month is July, when average highs reach 28°C and the mean temperature sits around 23°C. The coldest month is February, when overnight lows fall to -12°C and the daily average is -8°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between February and March, with a 9°C shift in average temperatures.

Arlington is a moderately rainy area, receiving approximately 938mm of precipitation annually, which averages out to around 78mm per month. The wettest month is May, averaging 136mm of rainfall. August and July also tend to see above-average precipitation. The driest month is February, with just 26mm. That's 110mm less than May, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Snowfall is a regular feature from January to December, with around 87cm accumulating over the season. January typically sees the most snow at around 18cm.

Arlington is moderately windy, with an average annual wind speed of 22km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 25km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in July, with average winds dropping to 18km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 7km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 22km/h in winter, 23km/h in spring, 19km/h in summer, 22km/h in autumn.

It is currently spring in Arlington, which began on March 20, 2026. Arlington is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 28°C, while the coldest stretch bottoms out in February near -12°C. Summer is next, beginning on June 21, 2026 — 88 days from now.

The best time to visit Arlington is during September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 96mm per month. By contrast, July can be uncomfortably hot with highs reaching 28°C, while February is the coldest period with lows dropping to -12°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Arlington based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.