Portage, UT climate
Portage has cold winters and warm summers, with very little rain. A typical July afternoon reaches 90°, a January night drops to 14°, and about 8 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Portage feels like
Winter
Spring
Summer
Fall
Portage 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 | 30-yr range |
|---|---|---|---|---|---|---|
| January | 33° | 14° | 1.6" | 2.5" | 6 | 13° – 33° |
| February | 39° | 18° | 1.3" | 1.8" | 7 | 19° – 37° |
| March | 50° | 27° | 1.2" | 0.6" | 6 | 32° – 44° |
| April | 59° | 33° | 1.5" | 0.4" | 6 | 41° – 51° |
| May | 69° | 40° | 2.0" | 0.1" | 8 | 48° – 59° |
| June | 80° | 47° | 1.0" | 0 | 4 | 58° – 71° |
| July | 90° | 54° | 0.6" | 0 | 3 | 62° – 77° |
| August | 88° | 53° | 0.7" | 0 | 3 | 65° – 74° |
| September | 78° | 43° | 1.1" | 0 | 4 | 57° – 65° |
| October | 63° | 32° | 1.3" | 0.2" | 5 | 38° – 54° |
| November | 47° | 24° | 1.0" | 0.3" | 5 | 27° – 42° |
| December | 34° | 16° | 1.4" | 1.6" | 6 | 18° – 31° |
| Year | 61° | 33° | 14.5" | 7.5" | 62 |
“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 Portage
Portage gets 14 inches of rain and melted snow a year. May is the wettest month and July the driest. Rain or snow falls on about 62 days a year.
About 116 frost-free days a year
In half of years the last 32° night comes by May 22 and the first one by September 20. That leaves about 116 frost-free days for gardens, shorter than 98% of U.S. towns.
Heating and cooling a home in Portage
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Portage, 94% of that work is heating and 6% 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 Portage 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 Portage averaged 1.4° warmer than the 1900s. The biggest change is in March (+3.1°). The shift is larger than in 66% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Portage’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 13° to 33°. September is the most reliable, staying within 8°.
Common questions about Portage’s climate
What is the coldest month in Portage?
January, with a typical high of 33° and a low of 14°.
What is the hottest month in Portage?
July, with a typical high of 90° and a low of 54°. About 46 days a year reach 90°.
How much snow does Portage get?
About 8 inches in a normal winter, most of it in January.
When is the first frost in Portage?
In half of years the first 32° night comes by September 20, and the last spring frost by May 22.
What is the rainiest month in Portage?
May, with 2.0 inches of rain and melted snow. The year totals 14 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Portage itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Plymouth, UT (8 mi, snow) and Malad City, ID (12 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.