Climate Insights for Redwood Valley

The climate in Redwood Valley is temperate. The average annual temperature is 13°C and approximately 1054mm of precipitation falls per year. January is the wettest month, receiving around 256mm of rainfall. Redwood Valley 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 2°C. Snowfall occurs from January to December, with around 57cm accumulating over the season.

Temperatures in Redwood Valley vary considerably across the year, with a 28°C difference between the coldest and warmest months. The warmest month is July, when average highs reach 30°C and the mean temperature sits around 22°C. December is the coolest month, with minimum temperatures around 2°C and an average of 6°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 5°C shift in average temperatures.

Redwood Valley is a moderately rainy area, receiving approximately 1054mm of precipitation annually, which averages out to around 88mm per month. The wettest month is January, averaging 256mm of rainfall. March and February also tend to see above-average precipitation. The driest month is July, with just 0mm. That's 256mm less than January, 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 57cm accumulating over the season. January typically sees the most snow at around 18cm.

Redwood Valley is relatively calm, with an average annual wind speed of 2km/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 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 2km/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 Redwood Valley, which began on June 21, 2026. Redwood Valley 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 30°C, while the coldest stretch bottoms out in December near 2°C. Autumn is next, beginning on September 23, 2026 — 75 days from now.

The best time to visit Redwood Valley is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 4mm per month. By contrast, December can be quite cold with temperatures dropping to 2°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Redwood Valley 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.