Photo: Ntsimp · Public domainPlain City’s winters are colder and snowier than most of the U.S.
A typical July afternoon reaches 92°, a January night drops to 20°, and about 38 inches of snow falls in a normal winter.
A year in Plain City at a glance
Each month’s typical high and low, and what it brings.
What stands out about Plain City’s climate
Compared with towns across the U.S., with Plain City’s place in Utah beside it.
What a year in Plain City feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 177 frost-free days a year
In half of years the last 32° night comes by April 22 and the first by October 18. Frost and day counts come from NOAA’s station at Ogden Sugar Factory, UT, 6 miles from the town’s center, at about the same height.
The 2023 USDA map puts Plain City’s center in zone 7a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 2°. 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 38 inches of snow a winter
Snow, measured at Brigham City Waste Plt, UT, falls mostly in January. Precipitation (rain plus melted snow) adds up to 18 inches a year; May is the wettest month and July the driest. Rain or snow falls on about 76 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Plain City
83% of the work is heating. 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 Ogden Sugar Factory, UT.
Living with Plain City’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
177 frost-free days in zone 7a. The last frost comes by Apr 22 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 18.
Months with highs of 62–84° and lows of 40° or more: May, June and September. 7.3 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Plain City from natural hazards, earthquakes are the largest share (45%); heat waves, cold waves, winter storms and ice storms together are 4%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Plain City and its neighbors
Every town next door is within a degree of Plain City in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Plain City’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 |
|---|---|---|---|---|
| Plain City, UT | 20° | 92° | 18" | 38" |
| Sterling, CO | 16° | 91° | 16" | 37" |
| Colby, KS | 17° | 91° | 20" | 27" |
| Dalhart, TX | 21° | 92° | 16" | 20" |
| Gering, NE | 15° | 90° | 15" | 43" |
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
Warmer than it used to be
The last 30 years in Plain City averaged 1.8° warmer than the 1900s. The biggest change is in March (+3.5°).
A bigger shift than in 77% 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 Plain City compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Plain City’s place among Utah’s.
Plain City weather by month
Highs, lows and precipitation from NOAA’s grid at Plain City’s center; snow, wet days and snow on the ground from Brigham City Waste Plt, UT. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 37° | 20° | 1.8" | 12.2" | 9 | 21 | 22° – 37° |
| February | 42° | 24° | 1.7" | 7.5" | 8 | 14 | 27° – 42° |
| March | 53° | 32° | 2.0" | 4.2" | 8 | 3 | 38° – 48° |
| April | 61° | 38° | 2.1" | 1.2" | 8 | 0 | 44° – 56° |
| May | 72° | 46° | 2.2" | 0.0" | 9 | 0 | 53° – 64° |
| June | 82° | 54° | 1.2" | 0.0" | 4 | 0 | 62° – 75° |
| July | 92° | 62° | 0.5" | 0.0" | 2 | 0 | 68° – 81° |
| August | 90° | 60° | 0.7" | 0.0" | 3 | 0 | 70° – 79° |
| September | 79° | 51° | 1.1" | 0.0" | 5 | 0 | 61° – 69° |
| October | 64° | 39° | 1.7" | 0.5" | 6 | 0 | 43° – 58° |
| November | 49° | 29° | 1.4" | 4.1" | 7 | 2 | 31° – 45° |
| December | 38° | 21° | 1.7" | 8.6" | 8 | 12 | 23° – 35° |
| Year | 63° | 40° | 18.1" | 38.3" | 76 | 52 |
How much a month can swing
A normal is an average. January swings the most: from 1991 to 2020 its average ranged from 22° to 37°. September is the most reliable, staying within 8°.
Where Plain City’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 Plain City’s center.
- Snow: Brigham City Waste Plt, UT.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Ogden Sugar Factory, UT, 6 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 Plain City’s climate
What is the weather like in Plain City?
A typical July afternoon reaches 92°, a January night drops to 20°, and about 38 inches of snow falls in a normal winter. Colder January nights than 58% of U.S. towns; hotter July afternoons than 88% of U.S. towns.
How cold does it get in Plain City in winter?
January nights average 20°. About 128 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 22°.
How much snow does Plain City get?
About 38 inches in a normal winter at Brigham City Waste Plt, UT, most of it in January, with snow on the ground about 52 days a year.
How hot does it get in Plain City?
July, with a typical high of 92° and a low of 62°. About 65 days a year reach 90° and 8 reach 100° (Ogden Sugar Factory, UT).
When is the first and last frost in Plain City?
In half of years the last spring frost (32°) comes by April 22 and the first fall frost by October 18, about 177 frost-free days, at Ogden Sugar Factory, UT.
What growing zone is Plain City in?
Zone 7a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 2°.
What is the best time of year to visit Plain City?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Plain City getting warmer?
Yes: 1991–2020 averaged 1.8° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 77% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Plain City.
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.