Climate Insights for Welwyn

The climate in Welwyn is cool. The average annual temperature is 3°C and approximately 535 mm of precipitation falls per year. June is the wettest month, receiving around 94 mm of rainfall. Welwyn is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are February, January, December, when temperatures can drop to -19°C. Snowfall occurs from January to December, with around 136cm accumulating over the season.The climate in Welwyn is cool. The average annual temperature is 37°F and approximately 21.1 in of precipitation falls per year. June is the wettest month, receiving around 3.7 in of rainfall. Welwyn is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are February, January, December, when temperatures can drop to -2°F. Snowfall occurs from January to December, with around 54in accumulating over the season.

Welwyn has a wide annual temperature range, spanning 45°C from the coldest to warmest months. The warmest month is July, when average highs reach 26°C and the mean temperature sits around 19°C. February brings the harshest conditions, with lows dropping to -19°C and an average temperature of -14°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 10°C shift in average temperatures.Welwyn has a wide annual temperature range, spanning 80°F from the coldest to warmest months. The warmest month is July, when average highs reach 78°F and the mean temperature sits around 66°F. February brings the harshest conditions, with lows dropping to -2°F and an average temperature of 6°F. On average, daily temperatures fluctuate by about 20°F between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 17°F shift in average temperatures.

Welwyn is a relatively dry area, receiving approximately 535 mm of precipitation annually, which averages out to around 45 mm per month. The wettest month is June, averaging 94 mm of rainfall. July and May also tend to see above-average precipitation. The driest month is February, with just 15 mm. That's 79 mm less than June, 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 136cm accumulating over the season. December typically sees the most snow at around 27cm.Welwyn is a relatively dry area, receiving approximately 21.1 in of precipitation annually, which averages out to around 1.8 in per month. The wettest month is June, averaging 3.7 in of rainfall. July and May also tend to see above-average precipitation. The driest month is February, with just 0.6 in. That's 3.1 in less than June, 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 54in accumulating over the season. December typically sees the most snow at around 11in.

Welwyn 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 April, averaging 15km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, 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 3km/h between the calmest and windiest months.Welwyn is moderately windy, with an average annual wind speed of 9mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is April, averaging 9mph, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in July, with average winds dropping to 8mph, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1mph between the calmest and windiest months.

The best time to visit Welwyn is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 74 mm per month. By contrast, February can be quite cold with temperatures dropping to -19°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 best time to visit Welwyn is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 64°F with modest rainfall averaging 2.9 in per month. By contrast, February can be quite cold with temperatures dropping to -2°F. 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 Welwyn 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.The table below shows monthly climate averages for Welwyn based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in inches (in) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.