Fredericksburg, TX weather in September
Fredericksburg is hot and often humid in September, with some rain: highs average 88°F and nights drop to about 64°F. Expect about 6 wet days.
- Normal high
- 88°F
- Normal low
- 64°F
- Wet days
- 6
- 3.3 in total
- Muggy days
- 10
- dew point 65°F+
How September changes from start to finish
| September 1 | September 30 | |
|---|---|---|
| Normal high | 92°F | 84°F |
| Normal low | 68°F | 60°F |
| Chance of a wet day | 21% | 20% |
| Sunrise / sunset | 7:12 am / 7:58 pm | 7:28 am / 7:22 pm |
| Daylight | 12.8 h | 11.9 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).
A typical September day
- 6 am66°Fdew point 61°F
- 9 am74°Fdew point 63°F
- Noon84°Fdew point 61°F
- 3 pm87°Fdew point 58°F
- 6 pm85°Fdew point 59°F
- 9 pm76°Fdew point 60°F
NOAA hourly normals (local standard time) from Junction Kimble Co Airport (56 mi away); average wind 6 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F1 of 30
- Hot dayshigh 90°F or more16 of 30
- Muggy daysdaily mean dew point 65°F or more10 of 30
- Wet daysat least 0.01 in of rain or melted snow6 of 30
- Notable rainat least 0.10 in4 of 30
- Freezing nightslow 32°F or below0 of 30
Average days per September, counted from daily records for each year 1991-2020.
Rain in September
Normal precipitation is 3.3 in; a dry September brings about 1.3 in and a wet one about 4.2 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more.
How September varies from year to year
- Warmest September, 1991-20202011: average high 96°F
- Coolest September1991: average high 82°F
- Wettest September2009: 9.0 in
- Driest September1999: 0.01 in
- Highest reading109°F (September 5, 2000)
- Lowest reading38°F (September 30, 2000)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
September compared with August and October
| August | September | October | |
|---|---|---|---|
| Normal high | 94°F | 88°F | 79°F |
| Normal low | 70°F | 64°F | 54°F |
| Wet days | 5 | 6 | 7 |
| Comfortable days | 0 | 1 | 9 |
| Daylight | 13.2 h | 12.3 h | 11.4 h |
Highs change by -6°F from August and -9°F into October.
Nearby alternatives in September
- Warmer: Laredo, TX195 mi · high 94°F · 8 wet days
How Fredericksburg ranks in September
- Normal high102nd warmest of 378 cities; 34th of 38 in Texas
- Wet days119th driest of 378
- Comfortable days287th most of 342
What to pack for Fredericksburg in September
- Light, breathable clothing – highs near 88°F and about 10 muggy days
Heating and cooling
September has 5 heating degree days and 335 cooling degree days (base 65°F), 7% of the year's total heating and cooling demand.
Questions
How hot is Fredericksburg in September?
The normal high is 88°F and the normal low is 64°F. From 1991 to 2020 the hottest September reading was 109°F (September 5, 2000).
Does it rain a lot in Fredericksburg in September?
About 6 days in September have at least 0.01 in of precipitation, and the normal total is 3.3 in. The wettest September in 1991-2020 was in 2009 (9.0 in); the driest was in 1999 (0.01 in).
Is September a good time to visit Fredericksburg?
September ranks 9th of 12 months on our comfort score for Fredericksburg (41 out of 100). It has about 1 comfortable day and about 16 days at 90°F or hotter. The best months are February, March and November.
Where the numbers come from
- Temperature, rain, snowfall, snow depth and frost dates: Fredericksburg (USC00413329), 3.3 mi SW of the city center, 1,685 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour: Junction Kimble Co Airport (USW00013973), 56 mi WNW of the city center, 1,749 ft (52 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Kimble County Airport (747400-13973), 56 mi WNW of the city center, 1,711 ft . Hourly observations, 1991-2020.
- Not available for this location: cloud cover (no station close enough or similar enough in elevation).