Rockville weather by month
What a typical year looks like in Rockville, Nebraska: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Ravenna, 12 km from Rockville; records cover 1893–2026.
The year at a glance
- Precipitation a year
- 26.5 in673 mm
- Snow a year
- 24 in62 cm
- Last spring freeze
- May 4
- First fall freeze
- Oct 4
- Heating degree days
- 6,473
- Cooling degree days
- 898
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −7°−22° (heating, 99%) and 97°36° (cooling, 1%).
Month by month
Rockville in January
Highs average 37°3° and lows 12°−11°, with 0.52 in13 mm of precipitation and 4 in11 cm of snow in a typical January.
- Record high
- 78°26° (1950)
- Record low
- −31°−35° (1912)
- Heating degree days
- 1257
- Cooling degree days
- 0
Rockville in February
Highs average 41°5° and lows 15°−10°, with 0.64 in16 mm of precipitation and 7 in18 cm of snow in a typical February.
- Record high
- 80°27° (1930)
- Record low
- −37°−38° (1899)
- Heating degree days
- 1047
- Cooling degree days
- 0
Rockville in March
Highs average 53°12° and lows 24°−5°, with 1.4 in35 mm of precipitation and 3 in8 cm of snow in a typical March.
- Record high
- 96°36° (2026)
- Record low
- −22°−30° (1948)
- Heating degree days
- 828
- Cooling degree days
- 0
Rockville in April
Highs average 63°17° and lows 34°1°, with 2.7 in69 mm of precipitation and 1.7 in4.3 cm of snow in a typical April.
- Record high
- 98°37° (1910)
- Record low
- −2°−19° (1936)
- Heating degree days
- 503
- Cooling degree days
- 5
Rockville in May
Highs average 73°23° and lows 47°8°, with 3.9 in100 mm of precipitation and 0.1 in0.3 cm of snow in a typical May.
- Record high
- 103°39° (1934)
- Record low
- 18°−8° (1981)
- Heating degree days
- 216
- Cooling degree days
- 48
Rockville in June
Highs average 83°28° and lows 58°14°, with 4.4 in112 mm of precipitation in a typical June.
- Record high
- 109°43° (1946)
- Record low
- 32°0° (1935)
- Heating degree days
- 30
- Cooling degree days
- 188
Rockville in July
Highs average 87°31° and lows 63°17°, with 3.8 in96 mm of precipitation in a typical July.
- Record high
- 116°47° (1936)
- Record low
- 37°3° (1971)
- Heating degree days
- 4
- Cooling degree days
- 312
Rockville in August
Highs average 85°29° and lows 60°16°, with 3.3 in85 mm of precipitation in a typical August.
- Record high
- 111°44° (1934)
- Record low
- 36°2° (1915)
- Heating degree days
- 11
- Cooling degree days
- 243
Rockville in September
Highs average 78°26° and lows 50°10°, with 2.1 in52 mm of precipitation in a typical September.
- Record high
- 105°41° (1931)
- Record low
- 20°−7° (1918)
- Heating degree days
- 116
- Cooling degree days
- 94
Rockville in OctoberThis month
Highs average 66°19° and lows 36°2°, with 2.1 in53 mm of precipitation and 0.8 in2 cm of snow in a typical October.
- Record high
- 99°37° (1934)
- Record low
- 4°−16° (1913)
- Heating degree days
- 445
- Cooling degree days
- 8
Rockville in November
Highs average 51°11° and lows 23°−5°, with 0.96 in24 mm of precipitation and 3 in8 cm of snow in a typical November.
- Record high
- 86°30° (1945)
- Record low
- −15°−26° (1976)
- Heating degree days
- 830
- Cooling degree days
- 0
Rockville in December
Highs average 39°4° and lows 14°−10°, with 0.67 in17 mm of precipitation and 4 in10 cm of snow in a typical December.
- Record high
- 82°28° (1939)
- Record low
- −31°−35° (1989)
- Heating degree days
- 1186
- Cooling degree days
- 0