Kimball Stage Stop · Photo: P. Kent Fairbanks · Public domainSilver Summit gets about 153 inches of snow a winter, more than all but 52 U.S. towns
A typical July afternoon reaches 84°, a January night drops to 14°, and about 153 inches of snow falls in a normal winter.
A year in Silver Summit at a glance
Each month’s typical high and low, and what it brings.
What stands out about Silver Summit’s climate
Compared with towns across the U.S., with Silver Summit’s place in Utah beside it.
What a year in Silver Summit feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 117 frost-free days a year
In half of years the last 32° night comes by May 29 and the first by September 25. Frost and day counts come from NOAA’s station at Park City, UT, 6 miles from the town’s center, 250 ft higher.
The 2023 USDA map puts Silver Summit’s center in zone 5b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −15°. 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 153 inches of snow a winter
Snow, measured at Snyderville, UT, falls mostly in January and December. 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 96 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Silver Summit
98% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through May.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Park City, UT.
Living with Silver Summit’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
117 frost-free days in zone 5b. The last frost comes by May 29 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Sep 25.
Months with highs of 62–84° and lows of 40° or more: June, July, August and September. 26 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Silver Summit from natural hazards, avalanches are the largest share (80%). Normals are averages; the hazards page covers the extremes.
Natural hazards →Silver Summit and its neighbors
Every town next door is within a degree of Silver Summit in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Silver Summit’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 |
|---|---|---|---|---|
| Silver Summit, UT | 14° | 84° | 18" | 153" |
| Monument, CO | 14° | 83° | 22" | 121" |
| Lewistown, MT | 12° | 82° | 18" | 112" |
| South Lake Tahoe, CA | 22° | 81° | 19" | 179" |
| Hailey, ID | 10° | 84° | 14" | 102" |
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 Silver Summit averaged 1.7° warmer than the 1900s. The biggest change is in March (+3.5°).
A bigger shift than in 70% 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 Silver Summit compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Silver Summit’s place among Utah’s.
Silver Summit weather by month
Highs, lows and precipitation from NOAA’s grid at Silver Summit’s center; snow, wet days and snow on the ground from Snyderville, UT. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 35° | 14° | 1.8" | 34.0" | 12 | 19° – 32° |
| February | 39° | 17° | 1.8" | 25.5" | 10 | 24° – 35° |
| March | 48° | 25° | 1.6" | 20.9" | 9 | 31° – 42° |
| April | 54° | 30° | 1.8" | 15.7" | 10 | 38° – 49° |
| May | 64° | 37° | 1.8" | 3.1" | 10 | 45° – 55° |
| June | 75° | 43° | 1.1" | 0.5" | 6 | 53° – 65° |
| July | 84° | 50° | 0.8" | 0.0" | 5 | 58° – 71° |
| August | 82° | 49° | 1.1" | 0.0" | 6 | 61° – 69° |
| September | 73° | 41° | 1.3" | 0.9" | 5 | 53° – 61° |
| October | 59° | 31° | 1.7" | 5.7" | 7 | 38° – 51° |
| November | 45° | 23° | 1.8" | 15.5" | 8 | 25° – 42° |
| December | 35° | 15° | 1.6" | 31.1" | 9 | 20° – 29° |
| Year | 58° | 31° | 18.3" | 152.9" | 96 |
How much a month can swing
A normal is an average. November swings the most: from 1991 to 2020 its average ranged from 25° to 42°. September is the most reliable, staying within 8°.
Where Silver Summit’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 Silver Summit’s center.
- Snow: Snyderville, UT.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Park City, UT, 6 miles from the town’s center, 250 ft higher; 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 Silver Summit’s climate
What is the weather like in Silver Summit?
A typical July afternoon reaches 84°, a January night drops to 14°, and about 153 inches of snow falls in a normal winter. Colder January nights than 87% of U.S. towns; cooler July afternoons than 60% of U.S. towns.
How cold does it get in Silver Summit in winter?
January nights average 14°. About 202 nights a year reach 32° or below and 11 reach 0° or below. In the coldest January of the last 30 years the month averaged 19°.
How much snow does Silver Summit get?
About 153 inches in a normal winter at Snyderville, UT, most of it in January and December.
How hot does it get in Silver Summit?
July, with a typical high of 84° and a low of 50°. About 5 days a year reach 90° (Park City, UT).
When is the first and last frost in Silver Summit?
In half of years the last spring frost (32°) comes by May 29 and the first fall frost by September 25, about 117 frost-free days, at Park City, UT.
What growing zone is Silver Summit in?
Zone 5b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −15°.
What is the best time of year to visit Silver Summit?
By one simple rule (highs of 62–84° and lows of 40° or more), June, July, August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Silver Summit getting warmer?
Yes: 1991–2020 averaged 1.7° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 70% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Silver Summit.
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.