Pacific Junction, IA climate
Pacific Junction has cold winters and warm summers. A typical July afternoon reaches 87°, a January night drops to 14°, and about 25 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Pacific Junction feels like
Winter
Spring
Summer
Fall
Pacific Junction 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 | 33° | 14° | 0.8" | 7.7" | 5 | 15 | 16° – 37° |
| February | 39° | 18° | 1.0" | 6.6" | 5 | 12 | 17° – 38° |
| March | 52° | 30° | 1.8" | 3.2" | 6 | 4 | 33° – 56° |
| April | 64° | 40° | 3.3" | 1.2" | 9 | 1 | 43° – 58° |
| May | 74° | 51° | 5.0" | 0 | 10 | 0 | 57° – 70° |
| June | 83° | 62° | 4.8" | 0 | 8 | 0 | 69° – 77° |
| July | 87° | 66° | 3.9" | 0 | 7 | 0 | 71° – 83° |
| August | 85° | 63° | 3.9" | 0 | 7 | 0 | 68° – 78° |
| September | 78° | 54° | 3.2" | 0 | 5 | 0 | 60° – 72° |
| October | 66° | 42° | 2.5" | 0.8" | 6 | 0 | 47° – 58° |
| November | 50° | 29° | 1.4" | 1.1" | 4 | 2 | 30° – 50° |
| December | 38° | 19° | 1.2" | 4.7" | 5 | 8 | 15° – 34° |
| Year | 62° | 41° | 32.9" | 25.3" | 75 | 41 |
“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 Pacific Junction
Pacific Junction gets 33 inches of rain and melted snow a year. May is the wettest month and January the driest. Rain or snow falls on about 75 days a year. Snow covers the ground about 41 days of the year.
About 170 frost-free days a year
In half of years the last 32° night comes by April 23 and the first one by October 11. That leaves about 170 frost-free days for gardens, shorter than 61% of U.S. towns.
Heating and cooling a home in Pacific Junction
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Pacific Junction, 85% of that work is heating and 15% 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.
How Pacific Junction 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 Pacific Junction averaged 0.8° warmer than the 1900s. The biggest change is in March (+2.4°). The shift is smaller than in 85% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Pacific Junction’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. March swings the most: between 1991 and 2020 its average temperature ranged from 33° to 56°. June is the most reliable, staying within 8°.
Common questions about Pacific Junction’s climate
What is the coldest month in Pacific Junction?
January, with a typical high of 33° and a low of 14°.
What is the hottest month in Pacific Junction?
July, with a typical high of 87° and a low of 66°. About 34 days a year reach 90°.
How much snow does Pacific Junction get?
About 25 inches in a normal winter, most of it in January.
When is the first frost in Pacific Junction?
In half of years the first 32° night comes by October 11, and the last spring frost by April 23.
What is the rainiest month in Pacific Junction?
May, with 5.0 inches of rain and melted snow. The year totals 33 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Pacific Junction itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Plattsmouth 1e, NE (4 mi, snow) and Glenwood 3sw, IA (1 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.