Mountain Green, UT climate
Mountain Green has chilly winters and warm summers, with very little rain. A typical July afternoon reaches 90°, a January night drops to 17°, and about 23 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Mountain Green feels like
Winter
Spring
Summer
Fall
Mountain Green 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 | 36° | 17° | 2.7" | 3.9" | 9 | 9 | 18° – 33° |
| February | 41° | 20° | 2.4" | 4.1" | 10 | 5 | 25° – 39° |
| March | 51° | 29° | 2.2" | 1.7" | 10 | 2 | 35° – 45° |
| April | 59° | 34° | 2.5" | 0.1" | 10 | 0 | 41° – 52° |
| May | 69° | 42° | 2.5" | 0.2" | 9 | 0 | 50° – 60° |
| June | 80° | 49° | 1.4" | 0 | 5 | 0 | 58° – 70° |
| July | 90° | 56° | 0.7" | 0 | 3 | 0 | 64° – 77° |
| August | 88° | 54° | 0.9" | 0 | 4 | 0 | 66° – 75° |
| September | 78° | 46° | 1.5" | 0 | 6 | 0 | 58° – 65° |
| October | 63° | 35° | 2.0" | 0.2" | 7 | 0 | 41° – 55° |
| November | 48° | 26° | 1.9" | 1.3" | 8 | 1 | 29° – 44° |
| December | 36° | 18° | 2.5" | 11.3" | 9 | 8 | 20° – 33° |
| Year | 62° | 35° | 23.1" | 22.8" | 90 | 25 |
“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 Mountain Green
Mountain Green gets 23 inches of rain and melted snow a year. January is the wettest month and July the driest. Rain or snow falls on about 90 days a year. Snow covers the ground about 25 days of the year.
About 172 frost-free days a year
In half of years the last 32° night comes by April 29 and the first one by October 20. That leaves about 172 frost-free days for gardens, shorter than 58% of U.S. towns.
Heating and cooling a home in Mountain Green
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Mountain Green, 87% of that work is heating and 13% 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 Mountain Green 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 Mountain Green averaged 1.8° warmer than the 1900s. The biggest change is in March (+3.6°). The shift is larger than in 88% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Mountain Green’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 18° to 33°. September is the most reliable, staying within 8°.
Common questions about Mountain Green’s climate
What is the coldest month in Mountain Green?
January, with a typical high of 36° and a low of 17°.
What is the hottest month in Mountain Green?
July, with a typical high of 90° and a low of 56°. About 41 days a year reach 90°.
How much snow does Mountain Green get?
About 23 inches in a normal winter, most of it in December.
When is the first frost in Mountain Green?
In half of years the first 32° night comes by October 20, and the last spring frost by April 29.
What is the rainiest month in Mountain Green?
January, with 2.7 inches of rain and melted snow. The year totals 23 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Mountain Green itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Weber Basin Pump Plt 3, UT (7 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.