December Weather in Letchworth Garden City, United Kingdom

Last updated: March 17, 2025

December in Letchworth Garden City, United Kingdom presents a chilly ambiance, with maximum temperatures reaching a mild 15°C (58°F) and an average of only 6°C (43°F). The month showcases a stark contrast, plunging to a minimum of -4°C (25°F) during the nights. Rainfall is notable, with a total of 82 mm (3.2 in) spread over 15 days, contributing to a high humidity level of 92%. Visitors can expect a mix of crisp air and damp days, perfect for cozying up indoors or enjoying the enchanting winter scenery.

December Temperature in Letchworth Garden City

As December sets in Letchworth Garden City, the temperatures begin to cool down significantly, showcasing a typical winter chill. With minimums around -4°C (25°F), the month often sends a brisk breeze through the streets, while the average temperature arrives at a modest 6°C (43°F), hinting at the frosty vibe of the holiday season. The maximum temperature gently reaches up to 15°C (58°F), offering occasional reprieves from the cold, making it a month of contrasts. Overall, December in Letchworth evokes a cozy atmosphere perfect for festive gatherings, as residents don warm layers to embrace the season's wintry charm.

December Weather in Letchworth Garden City: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Letchworth Garden City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec404245485561656459534643
Data source: Temperature data for Letchworth Garden City generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Letchworth Garden City

December in Letchworth Garden City typically heralds the arrival of winter, bringing with it an average precipitation of 82 mm (3.2 in) over 15 days—making it one of the wetter months of the year. This marks a notable increase from November's 52 mm (2.0 in), with December embracing a chillier atmosphere and more frequent rain showers. Interestingly, despite the cold, precipitation remains fairly consistent throughout the months leading up to December, showcasing a sustained trend of dampness as the year comes to a close. The increase in rainy days also contributes to a cozy ambiance, making it a fitting time for festive gatherings indoors.

December Precipitation Trends in Letchworth Garden City

The chart displays monthly precipitation patterns in Letchworth Garden City, with values for each month alongside December's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec544956346872667152875282
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Letchworth Garden City

In Letchworth Garden City, December brings a sense of winter chill and an unmistakable humidity level of 92%, matching November's moist atmosphere. As the year progresses, humidity tends to peak during the colder months, with January also showcasing a high level at 91%. Interestingly, as spring approaches, humidity gradually decreases to its annual low of 71% in July, before rising again in the autumn. This seasonal pattern highlights a trend where the colder months feature significantly higher humidity, creating a consistent backdrop of moisture that characterizes the city’s climate.

December Average Humidity in Letchworth Garden City

This chart illustrates the average monthly humidity levels in Letchworth Garden City, with December's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how December's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%85%79%81%71%76%82%91%92%92%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Letchworth Garden City

As December rolls into Letchworth Garden City, the UV Index dips back to a low level of 1, similar to the serene start of the year in January. With a burn time of 45 minutes, residents are free to enjoy outdoor activities without much concern for sunburn. This trend of low UV exposure continues from November, reflecting the seasonal shift as winter approaches. In the preceding months, the UV Index peaked in the summer at 8, categorizing it as very high, urging caution during those sun-drenched days. Overall, the gradual decrease in UV levels from the summer months showcases the rhythmic changes of the seasons. To stay informed about the UV conditions in Letchworth Garden City, visit Letchworth Garden City UV Index.

Maximum UV Index Levels in Letchworth Garden City for December

The chart shows the monthly maximum UV Index (UVI) for Letchworth Garden City in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec124578876421
Data source: Letchworth Garden City December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

December Sunshine in Letchworth Garden City

December in Letchworth Garden City brings a gentle fade into winter, featuring 104 hours of sunshine. While this is a modest amount compared to the brighter months earlier in the year, it follows the natural ebb and flow of seasonal light. After enjoying the peak of 382 hours in May and 390 hours in July, the sun gradually retreats, with each month portraying a distinct character as autumn gives way to the chill of winter. Notably, December's sunshine hours are a subtle reminder that even in the depths of winter, there's still a glimmer of light to be cherished, sparkling amid the festive spirit. As the year draws to a close, Letchworth's December sunshine reflects the cozy transition from vibrant days to the serene quietude of winter evenings.

Monthly Sunshine Duration in Letchworth Garden City: December Highlighted

The December sunshine duration represents the total number of hours Letchworth Garden City experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec93h146h205h307h382h370h390h353h290h231h137h104h
Data source: Letchworth Garden City December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Letchworth Garden City During December

In Letchworth Garden City, December is characterized by a notably low chance of sunny weather, with only a 16% likelihood of sunshine. This figure marks a significant decline compared to earlier months in the year, reflecting the transition into winter. As the year progresses from the more promising 48% in April, the probability of sunny days dwindles, dipping to 31% in November and landing at one of its lowest points in December. This trend underscores the shift toward cloudier, gloomier days as the year draws to a close, making the holiday season a time for cozy indoors rather than basking in the sun.

Percentage of Sunny Days in December in Letchworth Garden City

The chart illustrates the percentage of sunny days in Letchworth Garden City throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Letchworth Garden City experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec21%26%27%48%31%26%38%24%29%23%31%16%
Data source: Letchworth Garden City December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Letchworth Garden City in December

In December, Letchworth Garden City experiences its shortest daylight duration of the year, with just 7 hours of sunlight. This decline follows a gradual decrease from the summer peaks of 16 hours in June and July, illustrating the transition from vibrant summer days to the quieter, darker months of winter. As the year progresses, daylight steadily diminishes from 15 hours in May, tapering to 8 hours by November. However, December's shorter days signal the onset of winter, prompting a cozy atmosphere that invites residents to enjoy warm, indoor activities while eagerly anticipating the return of longer days in the coming months.

Average Daylight Hours in Letchworth Garden City for December

The chart illustrates the variation in daylight duration in Letchworth Garden City throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 20m9h 56m11h 54m13h 56m15h 42m16h 37m16h 8m14h 32m12h 35m10h 35m8h 47m7h 49m
Data source: Letchworth Garden City daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Letchworth Garden City

As December settles over Letchworth Garden City, the average wind speed reaches around 4.8 m/s (11 mph), marking a notable consistency with the breezy conditions of both October and November. Throughout the year, wind speeds fluctuate, but December's robust gusts signal the approach of winter, lingering on the higher end of the spectrum. In contrast to the calmer months of April and June, which see averages dip to around 3.4 m/s (8 mph), the end of the year breathes a briskness into the air. This slight uptick in wind speed hints at the seasonal shift and adds a refreshing vitality to Letchworth’s already picturesque landscape, inviting residents to embrace the chill of the season.

Average December Wind Speed in Letchworth Garden City

The chart displays monthly wind speed patterns in Letchworth Garden City, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.55.04.73.64.43.43.44.13.64.84.34.8 m/s
Data source: Letchworth Garden City December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Letchworth Garden City Compares to Other Months

The weather in Letchworth Garden City changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of December's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Letchworth Garden City and find detailed weather information for every month.

December and January weather in Letchworth Garden City show some similarities but also notable differences. Both months experience chilly temperatures, with a minimum of -4°C (25°F); however, December tends to be slightly warmer on average, with an average temperature of 6°C (43°F) compared to January's 5°C (41°F). Precipitation is more pronounced in December, totaling 82 mm (3.2 in) over 15 days, while January sees less rain, at 54 mm (2.1 in) over just 9 days. Humidity remains relatively high in both months, with December at 92% and January slightly lower at 91%. For more detailed information, you can check Letchworth Garden City weather in January.

December weather tends to be cooler, with temperatures ranging from a minimum of -4°C (25°F) to a maximum of 15°C (58°F) and an average of 6°C (43°F). It experiences higher precipitation at 82 mm (3.2 in) over approximately 15 days, coupled with a high humidity level of 92%. In contrast, February features slightly colder conditions, with minimum temperatures dropping to -6°C (21°F) while the maximum can reach 18°C (65°F), keeping the average the same at 6°C (43°F). February has less precipitation, totaling 49 mm (1.9 in) over 11 days, and a slightly lower humidity level of 89%. For more detailed insights on February weather, you can visit Letchworth Garden City weather in February.

In December, the weather features lower temperatures with a minimum of -4°C (25°F) and an average of 6°C (43°F), while it can reach a maximum of 15°C (58°F). The month is marked by significant precipitation of 82 mm (3.2 in) over about 15 days, accompanied by high humidity levels at 92%.

In contrast, March experiences slightly cooler temperatures, with a minimum of -6°C (22°F) and an average of 7°C (45°F), but it can soar to a maximum of 22°C (71°F). Precipitation decreases to 56 mm (2.2 in) over 13 days, and humidity also drops to 86%. Despite the cooler temperatures at the start of March, the month brings a hint of warmth that contrasts sharply with December's chill. For more information, you can check Letchworth Garden City weather in March.

In comparing the weather between December and April, there are notable differences in temperatures and precipitation patterns. December features a colder climate, with minimum temperatures around -4°C (25°F) and an average of 6°C (43°F), while April enjoys a milder average temperature of 9°C (49°F) and can even reach a maximum of 27°C (80°F). Additionally, December sees more precipitation, with 82 mm (3.2 in) over about 15 days, compared to the much drier April, which experiences only 34 mm (1.3 in) across 8 days. Humidity levels are also higher in December at 92%, while April's humidity hovers around 85%. For a more detailed look at April weather specifics, you can check out Letchworth Garden City weather in April.

The weather in December is characterized by colder temperatures, with a minimum of -4°C (25°F) and an average of 6°C (43°F), peaking at 15°C (58°F). This month experiences significant precipitation, totaling 82 mm (3.2 in) over about 15 days, and high humidity levels at 92%. In contrast, May brings a much milder climate, with temperatures ranging from a minimum of 1°C (35°F) to an average of 13°C (55°F), reaching a maximum of 27°C (80°F). Although May has slightly less precipitation at 68 mm (2.7 in) spread over 12 days, it enjoys lower humidity at 79%. For a detailed look at May weather, you can check Letchworth Garden City weather in May.

December and June present strikingly different weather conditions. In December, temperatures range from a chilly -4°C (25°F) at their lowest to a mild 15°C (58°F) at the peak, with an average of 6°C (43°F). The month is marked by significant precipitation, totaling 82 mm (3.2 in) over about 15 days, and a high humidity level of 92%. In contrast, June experiences much warmer temperatures, with lows of 7°C (44°F) and highs reaching up to 31°C (88°F), averaging 16°C (61°F). Precipitation in June is slightly less at 72 mm (2.8 in) over approximately 10 days, and humidity drops to a more comfortable 80%. For a more detailed look at the weather specifics during June, you can reference Letchworth Garden City weather in June.

December and July experience starkly different weather patterns. December's temperatures range from a chilly -4°C (25°F) to a mild 15°C (58°F), with an average of 6°C (43°F), while July boasts a significantly warmer range from 8°C (47°F) to a scorching 36°C (97°F), averaging around 18°C (65°F). Additionally, December sees higher humidity at 92% and more frequent precipitation, averaging 82 mm (3.2 in) over 15 days, compared to July's 66 mm (2.6 in) spread over only 13 days and a more comfortable humidity level of 71%. For a closer look at July's specifics, check out Letchworth Garden City weather in July.

When comparing the weather in December and August, it's clear that the two months present stark differences. December features colder temperatures, with a minimum of -4°C (25°F) and an average of 6°C (43°F), while August enjoys much milder conditions, starting at a minimum of 8°C (47°F) and peaking at an average of 18°C (64°F). Precipitation is relatively high in December at 82 mm (3.2 in) over 15 days, compared to August's 71 mm (2.8 in) across 12 days. Additionally, December's humidity reaches a significant 92%, making it feel quite damp, while August has a lower humidity level of 76%, contributing to a warmer overall feel. For more details on the weather during August, you can check Letchworth Garden City weather in August.

In December, the weather is significantly colder, with temperatures ranging from a minimum of -4°C (25°F) to a maximum of 15°C (58°F), while September enjoys milder conditions with temperatures varying between 3°C (37°F) and 29°C (84°F). December also experiences higher precipitation, tallying up to 82 mm (3.2 in) over 15 days, compared to September's 52 mm (2.0 in) across 9 days. Humidity levels in December are slightly higher at 92%, while September sees a comfortable 82%. For more detailed information about September weather, you can refer to Letchworth Garden City weather in September.

When comparing the weather in December and October, there are notable differences in temperature and precipitation. In December, temperatures range from a chilling minimum of -4°C (25°F) to a maximum of 15°C (58°F), with an average of 6°C (43°F). The month sees significant precipitation of 82 mm (3.2 in) over about 15 days, accompanied by high humidity at 92%. In contrast, October boasts milder temperatures, with a minimum of 0°C (33°F), an average of 11°C (53°F), and a maximum of 23°C (74°F). Although October has slightly higher precipitation at 87 mm (3.4 in) over 12 days, the humidity is marginally lower at 90%. For a detailed look at the weather specifics, check out Letchworth Garden City weather in October.

December weather typically sees a slight drop in average temperatures compared to November, with minimums reaching -4°C (25°F) and maximums peaking at 15°C (58°F), compared to November’s minimum of -2°C (28°F) and maximum of 17°C (63°F). Additionally, December experiences increased precipitation, with 82 mm (3.2 in) falling over 15 days, whereas November has only 52 mm (2.0 in) over 10 days. Despite both months having high humidity levels at 92%, December’s cooler temperatures and greater rainfall contribute to a distinctly more wintry feel. For a closer look at November weather specifics, visit Letchworth Garden City weather in November.

Compare Letchworth Garden City's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Letchworth Garden City

As winter sets in, December in Letchworth Garden City brings a notable shift in weather compared to the milder months of the year. With temperatures dipping to a chilly average of 6°C (43°F) and occasional lows reaching -4°C (25°F), residents can expect a brisk atmosphere, contrasting sharply with the warmer autumn tones. This month also sees increased humidity levels at 92%, creating a damp and often chilly environment. Precipitation is considerably higher, with 82 mm falling over approximately half the month, indicating a more frequent occurrence of rainy days. For a deeper dive into how Letchworth's climate evolves throughout the year, explore more at Letchworth Garden City Climate.