Last updated: February 24, 2025
In Fredericksburg, United States, September brings a diverse climate characterized by warm to hot temperatures. The month often sees a maximum temperature soaring up to 37°C (99°F), with an average of 25°C (78°F), while nights can cool down to a refreshing 9°C (48°F). Amidst this variability, the region experiences an average precipitation of 93 mm (3.7 in), with rain falling on about 8 days. Humidity levels remain moderately high at 66%, adding a slight tropical feel to the air. This combination of warmth and moisture contributes to the lush, vibrant landscapes typical of this time of year, making September a captivating month for outdoor activities and exploration.
In September, Fredericksburg experiences the transition from the sweltering summer months to a more moderate fall climate. With temperatures ranging from a minimum of 9°C (48°F) to a maximum of 37°C (99°F), the month averages a comfortable 25°C (78°F). This marks a notable drop from the highs of August, while still retaining some warmth typical of late summer. The evenings begin to cool, hinting at the forthcoming autumn, making this month a delightful time for outdoor activities. Overall, September serves as a pleasant bridge, balancing warmth with the crisp promise of fall.
In September, Fredericksburg experiences a notable shift in precipitation, with 93 mm (3.7 in) of rainfall spread over 8 days. This marks a peak for the late summer months, significantly higher than the preceding months of July and August, which averaged around 50 to 67 mm. The increase in rainfall is indicative of the transition into fall, as patterns typically reflect a buildup of moisture leading to more frequent showers. Following September, October maintains a similar level of precipitation, with 94 mm (3.7 in) expected, suggesting that the region continues to embrace the wet conditions characteristic of this time of year. Overall, September stands out as a critical month for replenishing local water sources, setting the stage for the cooler, rainier autumn ahead.
In Fredericksburg, United States, September brings a shift in humidity, dropping to 66%, which provides a refreshing relief after the muggy summer months. This marks a notable decrease from August's 63%, indicating the transition into autumn. Throughout the year, humidity levels maintain a generally high trend, peaking in the cooler months of November and December at 84% and 87%, respectively. Notably, May exhibits the highest humidity at 82%, aligning with the late spring warmth. As the year progresses, humidity typically remains elevated in the early months, but September's lower level signals a gradual easing that heralds the crispness of fall.
In September, Fredericksburg experiences a sustained UV Index of 11, categorizing the exposure as extreme with a burn time of just 10 minutes. This trend closely follows the high UV levels seen throughout the summer months, where indices peaked at 12 in both June and July. As the region transitions into fall, the UV Index starts to decline, but September still demands caution due to its intense sun exposure. As residents and visitors enjoy the warmer days, it's vital to stay protected and informed about UV levels. For a detailed look at UV trends year-round, check out Fredericksburg UV Index.
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As summer fades into fall, September in Fredericksburg offers a delightful blend of warmth and sunshine, with an impressive 283 hours of sunlight illuminating the month. This marks a graceful decline from the peak of 356 hours enjoyed in July, while still surpassing the earlier months. After the vibrant bursts of June and July, the light begins to soften, signaling a transition into more temperate weather. September's sunshine not only enriches the landscape with golden hues, but it also invites residents and visitors alike to savor the crispness of autumn days, setting the stage for the picturesque scenery that often follows in October.
In Fredericksburg, September stands out as a noteworthy month for sunny weather, boasting a 61% chance of sunshine. This is a marked increase compared to the summer months, where the likelihood of clear skies dwindles to the low and mid-thirties. Following the hot days of July and August, which have 36% and 44% chances of sun respectively, September ushers in a refreshing change with its higher probability of sunny days. Interestingly, the likelihood remains relatively steady into October at 56%, hinting at a pleasant early autumn experience. As summer transitions to fall, September not only offers a reprieve from the summer heat but also enhances outdoor enjoyment with its promising weather.
As summer gives way to autumn in Fredericksburg, United States, September marks a transitional month with 12 hours of daylight—a slight decline from the peak of 14 hours in June. This reduction reflects the gradual shortening of days as we move towards the coziness of fall. The month follows a trend of decreasing daylight that began after the summer solstice, with each preceding month leading up to September showcasing longer daylight hours. Interestingly, while daylight dwindles, September still holds a commendable amount of sun, inviting residents to savor the remnants of warm days and vibrant sunsets before autumn officially sets in.
As summer gently gives way to autumn in Fredericksburg, September showcases a noticeable decline in wind speed, averaging just 3.0 m/s (7 mph). This trend reflects a broader seasonal pattern, where the warmer months exhibit higher winds, peaking at 5.0 m/s (11 mph) in March before tapering off. The cooling entering fall seems to calm the breezes, dropping from 3.4 m/s (8 mph) in August. Interestingly, while windy months like January and February maintain more robust averages of 4.0 m/s (9 mph), September’s quieter gusts invite a serene transition into the cozy comforts of autumn, enhancing the charm of the changing seasons.
The weather in Fredericksburg changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Fredericksburg and find detailed weather information for every month.
September and January present stark contrasts in weather. September boasts a warm average temperature of 25°C (78°F), with highs reaching up to 37°C (99°F). It also experiences considerable rainfall, with 93 mm (3.7 in) spread over 8 days and a humidity level of 66%. In contrast, January features much cooler temperatures, with an average of 10°C (50°F) and lows plummeting to -10°C (15°F). The precipitation is lower at 47 mm (1.8 in) over just 5 days, along with a higher humidity level of 78%. For a closer look at January's weather, check out Fredericksburg weather in January.
September and February present strikingly contrasting weather patterns. In September, temperatures range from a mild 9°C (48°F) at night to a scorching average of 25°C (78°F), with maximums reaching 37°C (99°F). The month experiences about 93 mm (3.7 in) of precipitation over approximately 8 days, with humidity levels averaging 66%. Conversely, February sees much colder temperatures, with a minimum of -15°C (5°F) and an average of 11°C (52°F), peaking at a more moderate 30°C (85°F). Precipitation in February totals 62 mm (2.5 in) spread over the same 8 days, but the humidity is slightly higher at 78%. For a deeper insight into the specifics of February weather, you can check Fredericksburg weather in February.
September and March showcase contrasting weather patterns. In September, temperatures generally range from a mild 9°C (48°F) at night to a scorching 37°C (99°F) during the day, with an average temperature of 25°C (78°F). This month experiences around 93 mm (3.7 in) of rainfall over approximately 8 days, coupled with a moderate humidity level of 66%. In contrast, March sees cooler conditions, with temperatures dipping as low as -6°C (22°F) at night and peaking at 31°C (89°F) during the day, averaging 16°C (62°F). Although it has lower precipitation levels of 68 mm (2.7 in) spread over about 9 days, March faces higher humidity at 77%. For more details, you can refer to Fredericksburg weather in March.
When comparing the weather in September and April, notable differences emerge in temperature and humidity. September tends to be warmer, with average temperatures reaching around 25°C (78°F) and maximums peaking at 37°C (99°F). In contrast, April offers milder conditions, with average temperatures at 19°C (67°F) and max temperatures of 35°C (95°F). Precipitation levels are somewhat higher in September, with 93 mm (3.7 in) falling over 8 days, compared to April's 71 mm (2.8 in) across 7 days. Additionally, the humidity is noticeably higher in April at 78%, compared to 66% in September. For a more detailed look at the April weather in Fredericksburg, you can check Fredericksburg weather in April.
In comparing the weather between September and May, we observe a notable difference in both temperature and precipitation. September typically features a wider range of temperatures, with a minimum of 9°C (48°F) and a maximum reaching 37°C (99°F), resulting in an average of 25°C (78°F). In contrast, May's temperatures are slightly cooler, ranging from a minimum of 7°C (45°F) to a maximum of 36°C (98°F), yielding an average of 23°C (74°F). Additionally, May experiences higher rainfall, with 141 mm (5.6 in) over 14 days, compared to September's 93 mm (3.7 in) over 8 days, leading to increased humidity levels of 82% in May versus 66% in September. For more detailed weather information, you can check Fredericksburg weather in May.
The weather in September and June exhibits notable differences in temperature and humidity. September experiences a broader temperature range, with minimums around 9°C (48°F) and maximums reaching up to 37°C (99°F), while June maintains a milder range, with minimums at 14°C (58°F) and maximums hitting 39°C (102°F). June is generally more humid, with an average humidity of 78% compared to September's 66%. Despite September receiving slightly more precipitation, measuring 93 mm (3.7 in) over 8 days, June still remains relatively damp with 65 mm (2.6 in) across 9 days. For more details on June weather, check out Fredericksburg weather in June.
In comparing September and July weather, September tends to be slightly cooler overall, with an average temperature of 25°C (78°F) compared to July's 28°C (83°F). While July experiences higher maximum temperatures, reaching up to 40°C (105°F), September's maximum can go up to 37°C (99°F). Precipitation is more frequent in September, averaging 93 mm (3.7 in) over 8 days, whereas July is drier, with only 50 mm (2.0 in) over 7 days. Humidity remains relatively similar, at 66% in September and 69% in July. For more detailed information, you can check Fredericksburg weather in July.
When comparing the weather in September to August, September features a noticeable drop in minimum temperatures, averaging around 9°C (48°F) compared to 18°C (64°F) in August. While the average maximum temperatures remain high, peaking at 37°C (99°F) in September versus 39°C (102°F) in August, September experiences slightly more precipitation at 93 mm (3.7 in) over 8 days compared to August's 67 mm (2.6 in) over 7 days. Additionally, humidity levels are slightly higher in September at 66%, compared to 63% in August. For more detailed information on August weather, you can check Fredericksburg weather in August.
September and October display a notable shift in weather characteristics. In September, temperatures range from a minimum of 9°C (48°F) to a sizzling maximum of 37°C (99°F), with an average of 25°C (78°F). The month sees a total precipitation of 93 mm (3.7 in) over 8 days, and humidity sits at 66%. By contrast, October experiences cooler temperatures, with a minimum of 1°C (34°F), an average of 20°C (68°F), and a maximum of 35°C (96°F). Precipitation remains consistent at 94 mm (3.7 in) over 9 days, but humidity increases to 73%. For a detailed look at what to expect, check out Fredericksburg weather in October.
September and November present a striking contrast in weather patterns. In September, temperatures can soar as high as 37°C (99°F), with an average of 25°C (78°F), while November experiences much cooler temperatures, peaking at a maximum of 30°C (87°F) and averaging 14°C (58°F). Rainfall in September is considerably higher, with 93 mm (3.7 in) of precipitation and 8 rainy days, compared to November's 30 mm (1.2 in) over just 4 days. Additionally, humidity levels increase in November to 84%, making it feel considerably more damp than the relatively humid September average of 66%. For a more detailed look at November weather patterns, visit Fredericksburg weather in November.
In September, the weather is characterized by warm temperatures, ranging from a minimum of 9°C (48°F) to a scorching maximum of 37°C (99°F), with an average of 25°C (78°F). The month experiences around 93 mm (3.7 in) of precipitation over approximately 8 days, and a humidity level of 66%. In contrast, December sees a more pronounced chill, with temperatures dropping to a minimum of -4°C (25°F) and a maximum of 28°C (82°F), averaging 12°C (53°F). Precipitation decreases to 42 mm (1.6 in) over just 5 days, while humidity rises to 87%. For a more detailed look at December conditions, you can check out Fredericksburg weather in December.
As summer waves farewell, September in Fredericksburg brings a noticeable shift in weather, blending warm days with cooler evenings. The average temperature dips, providing a welcome relief from the intense heat, while the humidity remains relatively high, creating a humid yet comfortable atmosphere. Although some rain graces the month, it doesn't overshadow the fantastic outdoor opportunities that this transitional period offers. With only a few wet days, September stands apart from the typically drier summer months. For an in-depth look at how Fredericksburg weather compares throughout the year, check out the detailed insights on Fredericksburg Climate.