Dallas weather by month
What a typical year looks like in Dallas, Wisconsin: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Ridgeland 1nne, 8 km from Dallas; records cover 1961–2026.
The year at a glance
- Precipitation a year
- 35.6 in905 mm
- Snow a year
- 51 in130 cm
- Last spring freeze
- May 15
- First fall freeze
- Sep 29
- Heating degree days
- 8,598
- Cooling degree days
- 396
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −20°−29° (heating, 99%) and 90°32° (cooling, 1%).
Month by month
Dallas in January
Highs average 21°−6° and lows 2°−16°, with 1 in26 mm of precipitation and 10 in24 cm of snow in a typical January.
- Record high
- 54°12° (1981)
- Record low
- −47°−44° (1977)
- Heating degree days
- 1648
- Cooling degree days
- 0
Dallas in February
Highs average 26°−3° and lows 5°−15°, with 1.2 in29 mm of precipitation and 11 in29 cm of snow in a typical February.
- Record high
- 61°16° (2024)
- Record low
- −38°−39° (1996)
- Heating degree days
- 1383
- Cooling degree days
- 0
Dallas in March
Highs average 39°4° and lows 18°−8°, with 2.1 in54 mm of precipitation and 11 in28 cm of snow in a typical March.
- Record high
- 80°27° (1986)
- Record low
- −41° (1962)
- Heating degree days
- 1140
- Cooling degree days
- 0
Dallas in April
Highs average 54°12° and lows 31°0°, with 3.3 in85 mm of precipitation and 3 in8 cm of snow in a typical April.
- Record high
- 91°33° (1980)
- Record low
- −3°−19° (2018)
- Heating degree days
- 675
- Cooling degree days
- 1
Dallas in May
Highs average 67°19° and lows 44°6°, with 4.1 in104 mm of precipitation in a typical May.
- Record high
- 94°34° (2018)
- Record low
- 16°−9° (1967)
- Heating degree days
- 321
- Cooling degree days
- 19
Dallas in June
Highs average 76°24° and lows 54°12°, with 4.7 in120 mm of precipitation in a typical June.
- Record high
- 97°36° (2011)
- Record low
- 29°−2° (1964)
- Heating degree days
- 80
- Cooling degree days
- 84
Dallas in July
Highs average 80°27° and lows 58°15°, with 4.5 in115 mm of precipitation in a typical July.
- Record high
- 100°38° (1988)
- Record low
- 37°3° (1972)
- Heating degree days
- 25
- Cooling degree days
- 153
Dallas in August
Highs average 78°26° and lows 55°13°, with 4.5 in115 mm of precipitation in a typical August.
- Record high
- 102°39° (2006)
- Record low
- 32°0° (1976)
- Heating degree days
- 52
- Cooling degree days
- 105
Dallas in September
Highs average 70°21° and lows 47°8°, with 3.7 in93 mm of precipitation in a typical September.
- Record high
- 96°36° (1976)
- Record low
- 21°−6° (1967)
- Heating degree days
- 231
- Cooling degree days
- 32
Dallas in OctoberThis month
Highs average 56°13° and lows 35°2°, with 3.1 in78 mm of precipitation and 0.6 in1.5 cm of snow in a typical October.
- Record high
- 88°31° (1976)
- Record low
- 6°−14° (1976)
- Heating degree days
- 602
- Cooling degree days
- 2
Dallas in November
Highs average 40°5° and lows 23°−5°, with 1.9 in49 mm of precipitation and 4 in10 cm of snow in a typical November.
- Record high
- 75°24° (2020)
- Record low
- −21°−29° (1964)
- Heating degree days
- 998
- Cooling degree days
- 0
Dallas in December
Highs average 27°−3° and lows 10°−12°, with 1.4 in37 mm of precipitation and 11 in28 cm of snow in a typical December.
- Record high
- 61°16° (1998)
- Record low
- −42°−41° (1983)
- Heating degree days
- 1443
- Cooling degree days
- 0