Lyman weather by month
What a typical year looks like in Lyman, Nebraska: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Torrington Municipal Airport, 19 km from Lyman; records cover 1998–2026.
The year at a glance
- Precipitation a year
- 12.8 in326 mm
- Snow a year
- Rare
- Last spring freeze
- May 13
- First fall freeze
- Sep 28
- Heating degree days
- 6,481
- Cooling degree days
- 725
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −9°−23° (heating, 99%) and 101°38° (cooling, 1%).
Month by month
Lyman in January
Highs average 42°5° and lows 16°−9°, with 0.23 in5.8 mm of precipitation in a typical January.
- Record high
- 75°24° (2015)
- Record low
- −27°−33° (2024)
- Heating degree days
- 1124
- Cooling degree days
- 0
Lyman in February
Highs average 44°7° and lows 17°−8°, with 0.29 in7.4 mm of precipitation in a typical February.
- Record high
- 73°23° (2006)
- Record low
- −30°−34° (2006)
- Heating degree days
- 963
- Cooling degree days
- 0
Lyman in March
Highs average 54°12° and lows 25°−4°, with 0.66 in17 mm of precipitation in a typical March.
- Record high
- 90°32° (2026)
- Record low
- −17°−27° (2019)
- Heating degree days
- 800
- Cooling degree days
- 0
Lyman in April
Highs average 61°16° and lows 32°0°, with 1.6 in41 mm of precipitation in a typical April.
- Record high
- 90°32° (2012)
- Record low
- 1°−17° (2020)
- Heating degree days
- 559
- Cooling degree days
- 1
Lyman in May
Highs average 70°21° and lows 42°5°, with 2.5 in64 mm of precipitation in a typical May.
- Record high
- 100°38° (2003)
- Record low
- 20°−7° (2005)
- Heating degree days
- 297
- Cooling degree days
- 18
Lyman in June
Highs average 83°28° and lows 52°11°, with 2.1 in54 mm of precipitation in a typical June.
- Record high
- 105°41° (2012)
- Record low
- 27°−3° (2007)
- Heating degree days
- 62
- Cooling degree days
- 129
Lyman in July
Highs average 90°32° and lows 58°15°, with 1.7 in44 mm of precipitation in a typical July.
- Record high
- 107°42° (2006)
- Record low
- 42°6° (2009)
- Heating degree days
- 4
- Cooling degree days
- 291
Lyman in August
Highs average 88°31° and lows 56°13°, with 0.97 in25 mm of precipitation in a typical August.
- Record high
- 105°41° (2024)
- Record low
- 36°2° (2004)
- Heating degree days
- 15
- Cooling degree days
- 225
Lyman in September
Highs average 79°26° and lows 45°7°, with 1.1 in28 mm of precipitation in a typical September.
- Record high
- 102°39° (2020)
- Record low
- 20°−7° (1999)
- Heating degree days
- 144
- Cooling degree days
- 60
Lyman in OctoberThis month
Highs average 64°18° and lows 33°0°, with 1.1 in28 mm of precipitation in a typical October.
- Record high
- 92°33° (2025)
- Record low
- −11°−24° (2020)
- Heating degree days
- 522
- Cooling degree days
- 1
Lyman in November
Highs average 51°10° and lows 22°−5°, with 0.26 in6.6 mm of precipitation in a typical November.
- Record high
- 80°27° (2008)
- Record low
- −14°−26° (2014)
- Heating degree days
- 855
- Cooling degree days
- 0
Lyman in December
Highs average 41°5° and lows 15°−9°, with 0.23 in5.8 mm of precipitation in a typical December.
- Record high
- 74°23° (2021)
- Record low
- −27°−33° (1998)
- Heating degree days
- 1136
- Cooling degree days
- 0