Plain, UT climate
Plain has chilly, snowy winters and hot summers, with very little rain. A typical July afternoon reaches 92°, a January night drops to 20°, and about 38 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Plain feels like
Winter
Spring
Summer
Fall
Plain 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 | 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 | 9 | 0 | 53° – 64° |
| June | 82° | 54° | 1.2" | 0 | 4 | 0 | 62° – 75° |
| July | 92° | 62° | 0.5" | 0 | 2 | 0 | 68° – 81° |
| August | 90° | 60° | 0.7" | 0 | 3 | 0 | 70° – 79° |
| September | 79° | 51° | 1.1" | 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 |
“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 Plain
Plain gets 18 inches of rain and melted snow a year. May is the wettest month and July the driest. Rain or snow falls on about 76 days a year. Snow covers the ground about 52 days of the year.
About 177 frost-free days a year
In half of years the last 32° night comes by April 22 and the first one by October 18. That leaves about 177 frost-free days for gardens, shorter than 51% of U.S. towns.
Heating and cooling a home in Plain
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Plain, 83% of that work is heating and 17% 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.
Plain and its neighbors
Plain borders 2 towns with climate data. January nights across them vary by 0.9°. Farr West has the coldest January nights (19°) and Marriott-Slaterville the hottest July afternoons (92°). Plain’s January low is 20° and its July high 92°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Plain 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 Plain averaged 1.8° warmer than the 1900s. The biggest change is in March (+3.5°). The shift is larger than in 85% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Plain’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. January swings the most: between 1991 and 2020 its average temperature ranged from 22° to 37°. September is the most reliable, staying within 8°.
Common questions about Plain’s climate
What is the coldest month in Plain?
January, with a typical high of 37° and a low of 20°.
What is the hottest month in Plain?
July, with a typical high of 92° and a low of 62°. About 65 days a year reach 90°.
How much snow does Plain get?
About 38 inches in a normal winter, most of it in January.
When is the first frost in Plain?
In half of years the first 32° night comes by October 18, and the last spring frost by April 22.
What is the rainiest month in Plain?
May, with 2.2 inches of rain and melted snow. The year totals 18 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Plain itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Brigham City Waste Plt, UT (15 mi, snow) and Ogden Sugar Factory, UT (6 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.