Climate Insights for Arnold

The climate in Arnold is temperate. The average annual temperature is 15°C and approximately 1102mm of precipitation falls per year. March is the wettest month, receiving around 214mm of rainfall. Arnold is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, September. The coldest months are December, February, January, when temperatures can drop to 3°C. Light snow can occur between January and December.

Temperatures in Arnold vary considerably across the year, with a 30°C difference between the coldest and warmest months. The warmest month is July, when average highs reach 33°C and the mean temperature sits around 25°C. December is the coolest month, with minimum temperatures around 3°C and an average of 7°C. On average, daily temperatures fluctuate by about 13°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 6°C shift in average temperatures.

Arnold is a moderately rainy area, receiving approximately 1102mm of precipitation annually, which averages out to around 92mm per month. The wettest month is March, averaging 214mm of rainfall. January and December also tend to see above-average precipitation. The driest month is July, with just 1mm. That's 213mm less than March, 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. Light snowfall can occur between January and December, totalling around 48cm annually. February is the snowiest month with approximately 17cm.

Arnold is mildly breezy, with an average annual wind speed of 14km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 16km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 12km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 4km/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 15km/h in winter, 14km/h in spring, 12km/h in summer, 13km/h in autumn.

It is currently spring in Arnold, which began on March 20, 2026. Arnold 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 33°C, while the coldest stretch bottoms out in December near 3°C. Summer is next, beginning on June 21, 2026 — 88 days from now.

The best time to visit Arnold is during May, June, August, September and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 24mm per month. By contrast, July can be uncomfortably hot with highs reaching 33°C, while December is the coldest period with lows dropping to 3°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Arnold 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.