Photo: Ammodramus · Public domainJanuary in Homer bites harder than in 93% of U.S. towns
The warmest part of a July day comes in at 86° on average. Expect the heaviest rain or snow in June and the lightest in January. Its yearly precipitation falls short of 86% of U.S. towns. For walks and days out, May, June, August and September bring highs of 73–83°.
A year in Homer at a glance
Each month’s typical high and low, and what it brings.
What stands out about Homer’s climate
Compared with towns across the U.S., with Homer’s place in Nebraska beside it.
What a year in Homer feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 159 frost-free days a year
In half of years the last 32° night comes by April 29 and the first by October 5. Frost and day counts come from NOAA’s station at Sioux City Gateway Airport, 7 miles from the town’s center, at about the same height.
The 2023 USDA map puts Homer’s center in zone 5a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −16°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 36 inches of snow a winter
Snow, measured at Sioux City Gateway Airport, falls mostly in February. Precipitation (rain plus melted snow) adds up to 29 inches a year; June is the wettest month and January the driest. Rain or snow falls on about 102 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Homer
89% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through April.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Sioux City Gateway Airport.
Living with Homer’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
159 frost-free days in zone 5a. The last frost comes by Apr 29 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 5.
Months with highs of 62–84° and lows of 40° or more: May, June, August and September.
Parks & trails →Of the yearly building losses FEMA expects in Homer from natural hazards, river flooding is the largest share (35%); heat waves, cold waves, winter storms and ice storms together are 5%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Homer and similar climates
TownRatings has no climate map of the towns around Homer yet.
Climates most like Homer’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Homer, NE | 11° | 86° | 29" | 36" |
| Windsor Heights, IA | 13° | 85° | 35" | 37" |
| Marshall, MN | 6° | 84° | 28" | 44" |
| Huron, SD | 6° | 86° | 23" | 44" |
| Rock Island, IL | 14° | 85° | 37" | 36" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Homer averaged 0.9° warmer than the 1900s. The biggest change is in January (+2.3°).
A smaller shift than in 85% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Homer compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Homer’s place among Nebraska’s.
Homer weather by month
Highs, lows and precipitation from NOAA’s grid at Homer’s center; snow, wet days and snow on the ground from Sioux City Gateway Airport. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 30° | 11° | 0.6" | 7.7" | 7 | 20 | 12° – 34° |
| February | 35° | 15° | 0.8" | 8.7" | 7 | 15 | 14° – 35° |
| March | 48° | 26° | 1.6" | 5.7" | 8 | 7 | 29° – 53° |
| April | 61° | 37° | 3.1" | 2.3" | 10 | 1 | 41° – 55° |
| May | 73° | 48° | 4.0" | 0.0" | 12 | 0 | 55° – 66° |
| June | 82° | 60° | 4.6" | 0.0" | 12 | 0 | 67° – 76° |
| July | 86° | 63° | 3.3" | 0.0" | 9 | 0 | 68° – 81° |
| August | 83° | 61° | 3.9" | 0.0" | 10 | 0 | 66° – 77° |
| September | 77° | 52° | 2.9" | 0.0" | 8 | 0 | 58° – 70° |
| October | 63° | 39° | 2.3" | 0.8" | 8 | 0 | 44° – 55° |
| November | 47° | 26° | 1.3" | 3.2" | 6 | 3 | 27° – 47° |
| December | 34° | 15° | 1.0" | 7.6" | 7 | 13 | 12° – 30° |
| Year | 60° | 38° | 29.2" | 36.0" | 102 | 58 |
How much a month can swing
A normal is an average. March swings the most: from 1991 to 2020 its average ranged from 29° to 53°. June is the most reliable, staying within 9°.
Where Homer’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Homer’s center.
- Snow: Sioux City Gateway Airport.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Sioux City Gateway Airport, 7 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Homer’s climate
What is the weather like in Homer?
A typical July afternoon reaches 86°, a January night drops to 11°, and about 36 inches of snow falls in a normal winter. Colder January nights than 93% of U.S. towns; hotter July afternoons than 54% of U.S. towns.
How cold does it get in Homer in winter?
January nights average 11°. About 154 nights a year reach 32° or below and 16 reach 0° or below. In the coldest January of the last 30 years the month averaged 12°.
How much snow does Homer get?
About 36 inches in a normal winter at Sioux City Gateway Airport, most of it in February, with snow on the ground about 58 days a year.
How hot does it get in Homer?
July, with a typical high of 86° and a low of 63°. About 25 days a year reach 90° (Sioux City Gateway Airport).
When is the first and last frost in Homer?
In half of years the last spring frost (32°) comes by April 29 and the first fall frost by October 5, about 159 frost-free days, at Sioux City Gateway Airport.
What growing zone is Homer in?
Zone 5a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −16°.
What is the best time of year to visit Homer?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Homer getting warmer?
Yes: 1991–2020 averaged 0.9° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 85% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Homer.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.