North Liberty, IA climate
North Liberty has cold winters and warm summers. A typical July afternoon reaches 84°, a January night drops to 12°, and about 29 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in North Liberty feels like
Winter
Spring
Summer
Fall
North Liberty weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 29° | 12° | 1.1" | 7.7" | 6 | 16 | 12° – 33° |
| February | 34° | 17° | 1.4" | 7.8" | 6 | 14 | 13° – 37° |
| March | 48° | 28° | 2.2" | 4.5" | 7 | 6 | 30° – 52° |
| April | 61° | 38° | 3.7" | 0.6" | 10 | 0 | 41° – 56° |
| May | 72° | 50° | 4.6" | 0 | 11 | 0 | 55° – 68° |
| June | 81° | 60° | 5.5" | 0 | 12 | 0 | 68° – 74° |
| July | 84° | 63° | 4.3" | 0 | 9 | 0 | 68° – 81° |
| August | 82° | 61° | 4.3" | 0 | 8 | 0 | 66° – 78° |
| September | 76° | 53° | 3.6" | 0 | 7 | 0 | 58° – 69° |
| October | 63° | 41° | 3.0" | 0.1" | 8 | 0 | 47° – 57° |
| November | 47° | 29° | 2.2" | 0.8" | 6 | 1 | 30° – 48° |
| December | 34° | 18° | 1.6" | 7.7" | 8 | 11 | 12° – 36° |
| Year | 59° | 39° | 37.4" | 29.2" | 96 | 48 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in North Liberty
North Liberty gets 37 inches of rain and melted snow a year. June is the wettest month and January the driest. Rain or snow falls on about 96 days a year. Snow covers the ground about 48 days of the year.
About 162 frost-free days a year
In half of years the last 32° night comes by April 29 and the first one by October 9. That leaves about 162 frost-free days for gardens, shorter than 69% of U.S. towns.
Heating and cooling a home in North Liberty
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In North Liberty, 89% of that work is heating and 11% is cooling, so the furnace matters far more than the air conditioner.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
North Liberty and its neighbors
North Liberty borders 1 town with climate data. January nights across them vary by 0.2°. Coralville has both the coldest January nights (12°) and the hottest July afternoons (84°). North Liberty’s January low is 12° and its July high 84°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How North Liberty compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in North Liberty averaged 0.8° warmer than the 1900s. The biggest change is in December (+2.1°). The shift is smaller than in 83% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at North Liberty’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. February swings the most: between 1991 and 2020 its average temperature ranged from 13° to 37°. June is the most reliable, staying within 7°.
Common questions about North Liberty’s climate
What is the coldest month in North Liberty?
January, with a typical high of 29° and a low of 12°.
What is the hottest month in North Liberty?
July, with a typical high of 84° and a low of 63°. About 24 days a year reach 90°.
How much snow does North Liberty get?
About 29 inches in a normal winter, most of it in February.
When is the first frost in North Liberty?
In half of years the first 32° night comes by October 9, and the last spring frost by April 29.
What is the rainiest month in North Liberty?
June, with 5.5 inches of rain and melted snow. The year totals 37 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for North Liberty itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Swisher #2, IA (8 mi, snow) and Iowa City, IA (11 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.