San Carlos II weather by month
What a typical year looks like in San Carlos II, Texas: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Laredo International Airport, 11 km from San Carlos II; records cover 1902–2026.
The year at a glance
- Precipitation a year
- 21.3 in542 mm
- Snow a year
- Rare
- Last spring freeze
- Feb 1
- First fall freeze
- Dec 10
- Heating degree days
- 812
- Cooling degree days
- 4,341
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 32°0° (heating, 99%) and 108°42° (cooling, 1%).
Month by month
San Carlos II in January
Highs average 68°20° and lows 47°8°, with 0.9 in23 mm of precipitation in a typical January.
- Record high
- 98°37° (1914)
- Record low
- 15°−9° (1909)
- Heating degree days
- 262
- Cooling degree days
- 28
San Carlos II in February
Highs average 74°24° and lows 51°10°, with 0.83 in21 mm of precipitation in a typical February.
- Record high
- 103°39° (1986)
- Record low
- 16°−9° (1909)
- Heating degree days
- 142
- Cooling degree days
- 72
San Carlos II in March
Highs average 81°27° and lows 58°14°, with 1.6 in41 mm of precipitation in a typical March.
- Record high
- 105°41° (1904)
- Record low
- 25°−4° (1909)
- Heating degree days
- 61
- Cooling degree days
- 191
San Carlos II in April
Highs average 88°31° and lows 64°18°, with 1.5 in37 mm of precipitation in a typical April.
- Record high
- 111°44° (2011)
- Record low
- 32°0° (1920)
- Heating degree days
- 5
- Cooling degree days
- 337
San Carlos II in May
Highs average 93°34° and lows 71°22°, with 2.8 in70 mm of precipitation in a typical May.
- Record high
- 115°46° (1927)
- Record low
- 37°3° (1908)
- Heating degree days
- 0
- Cooling degree days
- 529
San Carlos II in June
Highs average 99°37° and lows 75°24°, with 2.5 in64 mm of precipitation in a typical June.
- Record high
- 115°46° (1908)
- Record low
- 56°13° (1907)
- Heating degree days
- 0
- Cooling degree days
- 660
San Carlos II in July
Highs average 100°38° and lows 76°25°, with 2.1 in54 mm of precipitation in a typical July.
- Record high
- 113°45° (1908)
- Record low
- 62°17° (1908)
- Heating degree days
- 0
- Cooling degree days
- 716
San Carlos II in August
Highs average 101°38° and lows 77°25°, with 1.7 in43 mm of precipitation in a typical August.
- Record high
- 111°44° (1927)
- Record low
- 60°16° (1908)
- Heating degree days
- 0
- Cooling degree days
- 739
San Carlos II in September
Highs average 94°34° and lows 72°22°, with 3.6 in92 mm of precipitation in a typical September.
- Record high
- 110°43° (1926)
- Record low
- 45°7° (1918)
- Heating degree days
- 0
- Cooling degree days
- 539
San Carlos II in OctoberThis month
Highs average 87°31° and lows 65°19°, with 1.8 in44 mm of precipitation in a typical October.
- Record high
- 107°42° (1926)
- Record low
- 28°−2° (1993)
- Heating degree days
- 14
- Cooling degree days
- 362
San Carlos II in November
Highs average 77°25° and lows 56°13°, with 1 in26 mm of precipitation in a typical November.
- Record high
- 101°38° (1906)
- Record low
- 21°−6° (1906)
- Heating degree days
- 93
- Cooling degree days
- 132
San Carlos II in December
Highs average 69°21° and lows 48°9°, with 1.1 in27 mm of precipitation in a typical December.
- Record high
- 95°35° (1924)
- Record low
- 11°−12° (1983)
- Heating degree days
- 235
- Cooling degree days
- 36