Climate Insights for Armstrong

The climate in Armstrong is cool. The average annual temperature is 7°C and approximately 721mm of precipitation falls per year. October is the wettest month, receiving around 84mm of rainfall. Armstrong is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are February, January, December, when temperatures can drop to -8°C. Armstrong experiences heavy snowfall, typically from January through December.

Temperatures in Armstrong vary considerably across the year, with a 34°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 26°C and the mean temperature sits around 18°C. The coldest month is February, when overnight lows fall to -8°C and the daily average is -4°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 7°C shift in average temperatures.

Armstrong is a relatively dry area, receiving approximately 721mm of precipitation annually, which averages out to around 60mm per month. The wettest month is October, averaging 84mm of rainfall. November and December also tend to see above-average precipitation. The driest month is August, with just 22mm. That's 62mm less than October, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Armstrong receives heavy snowfall, accumulating around 253cm annually from January through December. The snowiest month is December, with approximately 61cm. Winter travel should account for significant snow cover.

Armstrong is relatively calm, with an average annual wind speed of 1km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 1km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 0km/h between the calmest and windiest months.

It is currently summer in Armstrong, which began on June 21, 2026. Armstrong 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 August at around 26°C, while the coldest stretch bottoms out in February near -8°C. Autumn is next, beginning on September 23, 2026 — 93 days from now.

The best time to visit Armstrong is during July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 36mm per month. By contrast, February can be quite cold with temperatures dropping to -8°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Armstrong 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.