Seneca weather by month
What a typical year looks like in Seneca, Kansas: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Frankfort 6ne, 25 km from Seneca; records cover 1951–2026.
The year at a glance
- Precipitation a year
- 33.2 in844 mm
- Snow a year
- Rare
- Last spring freeze
- Apr 27
- First fall freeze
- Oct 13
- Heating degree days
- 5,809
- Cooling degree days
- 1,094
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −3°−19° (heating, 99%) and 98°37° (cooling, 1%).
Month by month
Seneca in January
Highs average 36°2° and lows 15°−9°, with 0.71 in18 mm of precipitation in a typical January.
- Record high
- 69°21° (1956)
- Record low
- −27°−33° (1974)
- Heating degree days
- 1215
- Cooling degree days
- 0
Seneca in February
Highs average 42°5° and lows 19°−7°, with 1.1 in27 mm of precipitation in a typical February.
- Record high
- 84°29° (1972)
- Record low
- −24°−31° (1971)
- Heating degree days
- 970
- Cooling degree days
- 0
Seneca in March
Highs average 53°12° and lows 28°−2°, with 2.1 in54 mm of precipitation in a typical March.
- Record high
- 93°34° (2026)
- Record low
- −14°−26° (1960)
- Heating degree days
- 752
- Cooling degree days
- 0
Seneca in April
Highs average 64°18° and lows 39°4°, with 3.1 in79 mm of precipitation in a typical April.
- Record high
- 90°32° (1954)
- Record low
- 11°−12° (1970)
- Heating degree days
- 415
- Cooling degree days
- 6
Seneca in May
Highs average 74°23° and lows 51°11°, with 4.8 in122 mm of precipitation in a typical May.
- Record high
- 99°37° (2018)
- Record low
- 24°−4° (1961)
- Heating degree days
- 150
- Cooling degree days
- 68
Seneca in June
Highs average 83°29° and lows 61°16°, with 4.7 in120 mm of precipitation in a typical June.
- Record high
- 102°39° (1956)
- Record low
- 39°4° (1964)
- Heating degree days
- 9
- Cooling degree days
- 225
Seneca in July
Highs average 88°31° and lows 65°18°, with 4.4 in112 mm of precipitation in a typical July.
- Record high
- 108°42° (1954)
- Record low
- 40°4° (1972)
- Heating degree days
- 2
- Cooling degree days
- 356
Seneca in August
Highs average 87°30° and lows 62°17°, with 3.6 in92 mm of precipitation in a typical August.
- Record high
- 109°43° (1956)
- Record low
- 41°5° (1956)
- Heating degree days
- 5
- Cooling degree days
- 296
Seneca in September
Highs average 80°26° and lows 53°12°, with 3.1 in78 mm of precipitation in a typical September.
- Record high
- 102°39° (1955)
- Record low
- 29°−2° (1976)
- Heating degree days
- 90
- Cooling degree days
- 124
Seneca in OctoberThis month
Highs average 67°20° and lows 40°5°, with 2.6 in67 mm of precipitation in a typical October.
- Record high
- 96°36° (1954)
- Record low
- 13°−11° (1972)
- Heating degree days
- 367
- Cooling degree days
- 18
Seneca in November
Highs average 52°11° and lows 29°−2°, with 1.7 in43 mm of precipitation in a typical November.
- Record high
- 79°26° (1964)
- Record low
- 0°−18° (1955)
- Heating degree days
- 742
- Cooling degree days
- 1
Seneca in December
Highs average 40°5° and lows 19°−7°, with 1.3 in33 mm of precipitation in a typical December.
- Record high
- 73°23° (2021)
- Record low
- −24°−31° (1961)
- Heating degree days
- 1092
- Cooling degree days
- 0