Magna, UT climate
Magna has chilly winters and hot summers, with very little rain. A typical July afternoon reaches 93°, a January night drops to 23°, and about 23 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Magna feels like
Winter
Spring
Summer
Fall
Magna 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 | 38° | 23° | 0.8" | 5.6" | 8 | 20° – 38° |
| February | 44° | 27° | 1.0" | 2.9" | 8 | 29° – 43° |
| March | 55° | 34° | 1.5" | 2.2" | 8 | 40° – 50° |
| April | 62° | 40° | 2.0" | 0.4" | 10 | 46° – 57° |
| May | 72° | 49° | 1.9" | 0 | 8 | 54° – 65° |
| June | 83° | 58° | 0.9" | 0 | 5 | 64° – 77° |
| July | 93° | 67° | 0.6" | 0 | 4 | 70° – 84° |
| August | 91° | 64° | 0.7" | 0 | 4 | 72° – 82° |
| September | 80° | 54° | 1.1" | 0 | 5 | 63° – 70° |
| October | 65° | 41° | 1.4" | 0.1" | 7 | 45° – 59° |
| November | 50° | 31° | 1.3" | 3.9" | 7 | 33° – 47° |
| December | 39° | 23° | 1.0" | 7.9" | 8 | 24° – 36° |
| Year | 64° | 42° | 14.1" | 23.0" | 81 |
“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 Magna
Magna gets 14 inches of rain and melted snow a year. April is the wettest month and July the driest. Rain or snow falls on about 81 days a year.
About 213 frost-free days a year
In half of years the last 32° night comes by April 3 and the first one by November 4. That leaves about 213 frost-free days for gardens, longer than 79% of U.S. towns.
Heating and cooling a home in Magna
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Magna, 79% of that work is heating and 21% is cooling.
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.
Magna and its neighbors
Magna borders 2 towns with climate data. January nights across them vary by 0.7°. Salt Lake City has both the coldest January nights (23°) and the hottest July afternoons (92°). Magna’s January low is 23° and its July high 93°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Magna 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 Magna averaged 1.9° warmer than the 1900s. The biggest change is in March (+3.4°). The shift is larger than in 91% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Magna’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 20° to 38°. September is the most reliable, staying within 7°.
Common questions about Magna’s climate
What is the coldest month in Magna?
January, with a typical high of 38° and a low of 23°.
What is the hottest month in Magna?
July, with a typical high of 93° and a low of 67°. About 58 days a year reach 90°.
How much snow does Magna get?
About 23 inches in a normal winter, most of it in December.
When is the first frost in Magna?
In half of years the first 32° night comes by November 4, and the last spring frost by April 3.
What is the rainiest month in Magna?
April, 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 Magna itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Garfield, UT (2 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.