Salt Lake City, Utah climate: Normal weather by month, frost dates and records
Salt Lake City's normal year runs from 24°F January nights to 94°F July afternoons, with 15.5 inches of precipitation and 52 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 12.6°C, January lows of −4°C, July highs of 34°C, 394 mm of precipitation a year.
- NOAA stationSalt Lake City International Airport
- Station IDUSW00024127
- Location40.78°N 111.97°W
- Elevation4,225 ft (1,288 m)
- From the center2 miles
- Population217,783
On October 22, the normal high in Salt Lake City is 63°F and the normal low 41°F, and the chance of measurable rain or snow is 22%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Salt Lake City.
- Jan 39° 24°
- Feb 45° 29°
- Mar 55° 36°
- Apr 62° 42°
- May 73° 50°
- Jun 84° 59°
- Jul 94° 68°
- Aug 92° 67°
- Sep 81° 56°
- Oct 66° 44°
- Nov 51° 33°
- Dec 39° 25°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Salt Lake City each month?
July is the warmest month, with normal highs of 94°F; January the coldest, with normal lows of 24°F. The most precipitation falls in April (2.16 in), the least in July (0.49 in).
Each month has its own page with the day-by-day normals, the month's records and its recent years:
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 39°F | 24°F | 31.4°F | 1.43 | 12.7 | 10 | <1 | 27 | 9 h 30 min |
| February | 45°F | 29°F | 36.6°F | 1.30 | 10.7 | 10 | <1 | 21 | 10 h 40 min |
| March | 55°F | 36°F | 45.8°F | 1.75 | 5.9 | 9 | <1 | 12 | 11 h 50 min |
| April | 62°F | 42°F | 51.8°F | 2.16 | 2.9 | 10 | <1 | 4 | 13 h 20 min |
| May | 73°F | 50°F | 61.5°F | 1.82 | 0.1 | 9 | 1 | <1 | 14 h 30 min |
| June | 84°F | 59°F | 71.6°F | 0.95 | 0.0 | 5 | 10 | <1 | 15 h |
| July | 94°F | 68°F | 81.1°F | 0.49 | 0.0 | 4 | 24 | <1 | 14 h 50 min |
| August | 92°F | 67°F | 79.1°F | 0.58 | 0.0 | 5 | 21 | <1 | 13 h 50 min |
| September | 81°F | 56°F | 68.4°F | 1.06 | 0.0 | 5 | 5 | <1 | 12 h 30 min |
| October | 66°F | 44°F | 54.6°F | 1.26 | 0.5 | 7 | <1 | 3 | 11 h 10 min |
| November | 51°F | 33°F | 41.7°F | 1.32 | 7.0 | 8 | <1 | 17 | 10 h |
| December | 39°F | 25°F | 32.2°F | 1.40 | 12.1 | 10 | <1 | 27 | 9 h 20 min |
| Year (annual) | 65°F | 44°F | 54.7°F | 15.52 | 51.9 | 92 | 62 | 112 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 4°C | −4°C | −0.3°C | 36 mm | 32 cm |
| February | 7°C | −2°C | 2.6°C | 33 mm | 27 cm |
| March | 13°C | 2°C | 7.7°C | 44 mm | 15 cm |
| April | 17°C | 5°C | 11.0°C | 55 mm | 7 cm |
| May | 23°C | 10°C | 16.4°C | 46 mm | 0 cm |
| June | 29°C | 15°C | 22.0°C | 24 mm | 0 cm |
| July | 34°C | 20°C | 27.3°C | 12 mm | 0 cm |
| August | 33°C | 19°C | 26.2°C | 15 mm | 0 cm |
| September | 27°C | 13°C | 20.2°C | 27 mm | 0 cm |
| October | 19°C | 6°C | 12.6°C | 32 mm | 1 cm |
| November | 10°C | 0°C | 5.4°C | 34 mm | 18 cm |
| December | 4°C | −4°C | 0.1°C | 36 mm | 31 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00024127; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Salt Lake City?
Normal highs sit between 65°F and 85°F in May, June, September and October. Of those, June has the fewest days with rain (5).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USW00024127.
When is the last frost in Salt Lake City?
In Salt Lake City, the last spring frost (32°F) comes after April 8 in half of years and after April 30 in one year in ten; the first autumn frost comes before October 31 in half of years and before October 17 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- April 81 year in 10 after April 30; 9 in 10 after March 17
- First autumn frost, half of years before
- October 311 year in 10 before October 17; 9 in 10 before November 13
NOAA puts the median frost-free season at 204 days, and the season without a hard freeze (28°F) at 237 days.
A hard freeze (28°F) comes after March 15 in half of springs and before November 10 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Salt Lake City in zones 6b to 7b across its 12 ZIP code areas (7b in 84116, the largest). By the map's own method, the average of each year's coldest night over 1991-2020, Salt Lake City's NOAA station is in zone 7a: the coldest night of a typical year reaches 3°F (30 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in Utah · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USW00024127; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
What hardiness zone is each Salt Lake City ZIP code in?
The USDA's 2023 map gives each ZIP code area one zone. Salt Lake City's 12 ZIP code areas run from zone 6b to 7b: 2 in 6b, 1 in 7a and 9 in 7b. Each ZIP's frost dates are in the frost tool.
Source: USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; ZIP areas in the place: Census Bureau 2020 ZCTA-to-place relationship file. A ZIP area counts when at least a tenth of its land (and 0.5 km²) lies in the place.
How hot and how cold does it get in Salt Lake City?
In a normal year in Salt Lake City, 62 days a year reach 90°F (8 of them 100°F or more), 112 nights fall to 32°F or colder and 92 days bring measurable precipitation.
- Days at 90°F or more
- 62a normal year
- Days at 100°F or more
- 8a normal year
- Nights at 32°F or colder
- 112a normal year
- Days that stay below freezing
- 21high of 32°F or less
- Days with 0.01 inch of precipitation
- 92a normal year
- Days with 1 inch of snow or more
- 16a normal year
The highest temperature in Salt Lake City's official record (kept by the National Weather Service since 1874) is 109°F, on July 12, 2026; the lowest is −30°F, on February 9, 1933.
The wettest calendar year on that record is 1983, with 24.26 in; the snowiest season is 1951–52, with 117.3 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USW00024127; records: ACIS (NOAA Regional Climate Centers), NWS threaded record SLCthr. Records use complete months only; a month missing more than three days is left out.
How humid and windy is Salt Lake City, and how clear are its skies?
The summer (June-August) dew point averages 44°F. The muggiest month is July, with an average dew point of 46°F; the driest air comes in December (21°F). March is the windiest month (9.2 mph on average), and September has the most clear or nearly clear hours (54%).
| Month | Dew point | Humidity | Afternoon humidity | Wind | Clear or few clouds | Overcast |
|---|---|---|---|---|---|---|
| January | 24°F | 72% | 58% | 6.6 mph | 24% | 39% |
| February | 26°F | 60% | 44% | 8.3 mph | 26% | 33% |
| March | 29°F | 50% | 36% | 9.2 mph | 27% | 27% |
| April | 34°F | 47% | 32% | 8.9 mph | 29% | 23% |
| May | 40°F | 40% | 25% | 8.6 mph | 33% | 17% |
| June | 42°F | 30% | 18% | 9.1 mph | 52% | 5% |
| July | 46°F | 32% | 19% | 9.0 mph | 40% | 6% |
| August | 44°F | 35% | 21% | 8.9 mph | 49% | 7% |
| September | 38°F | 45% | 27% | 8.1 mph | 54% | 10% |
| October | 31°F | 56% | 37% | 7.4 mph | 38% | 24% |
| November | 25°F | 68% | 53% | 7.0 mph | 30% | 31% |
| December | 21°F | 75% | 63% | 6.5 mph | 23% | 43% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00024127. Monthly averages of all hours; afternoon humidity at 3 p.m. local standard time; sky as the share of hours NOAA's observations rate clear or few clouds (a dash where NOAA publishes no sky value).
How sunny is Salt Lake City?
Over a year 80% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Salt Lake City, 4.8 kWh per square metre a day. July is the sunniest month (88%) and December the cloudiest (67%). Among the 459 U.S. places of 50,000 or more, that ranks tied 125th (with 50 others) in sunshine.
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 71% | 2.3 |
| February | 72% | 3.2 |
| March | 75% | 4.5 |
| April | 74% | 5.6 |
| May | 77% | 6.6 |
| June | 86% | 7.8 |
| July | 88% | 7.5 |
| August | 86% | 6.6 |
| September | 85% | 5.4 |
| October | 80% | 3.8 |
| November | 72% | 2.5 |
| December | 67% | 1.9 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Salt Lake City need?
A normal year in Salt Lake City brings 5,154 heating degree days, 4% fewer than the median U.S. place (5,373), and 1,420 cooling degree days, 56% more than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 3,827 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,041 | 0 |
| February | 794 | 0 |
| March | 596 | 0 |
| April | 400 | 5 |
| May | 172 | 63 |
| June | 36 | 234 |
| July | 1 | 500 |
| August | 2 | 441 |
| September | 59 | 163 |
| October | 337 | 14 |
| November | 698 | 0 |
| December | 1,018 | 0 |
| Year (annual) | 5,154 | 1,420 |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00024127. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Salt Lake City been warmer than normal lately?
2025 averaged 57.7°F, 3.0°F above the 1991-2020 normal of 54.7°F. 5 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 56.2°F | +1.5°F | 15.34 | 41.9 |
| 2022 | 55.8°F | +1.0°F | 12.57 | 43.0 |
| 2023 | 55.4°F | +0.7°F | 17.64 | 66.0 |
| 2024 | 57.3°F | +2.6°F | 14.78 | 26.3 |
| 2025 | 57.7°F | +3.0°F | 14.19 | 16.0 |
Over 76 complete years from 1948 to 2025, the station's annual mean temperature rose at a fitted 4.8°F per century (+0.27°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USW00024127; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Salt Lake City's climate compare?
Salt Lake City is warmer than 87 of the other 96 places with their own NOAA record in Utah, and wetter than 63. Across the 7,247 U.S. stations with normals, its annual mean of 54.7°F is warmer than 59%.
In the Köppen classification computed from these normals, Salt Lake City is Dsa: continental, dry-summer, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Salt Lake City share this climate record?
2 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- West Valley City, UTalso near: Salt Lake Triad Center (8 mi, 55.8°F a year); Garfield (10 mi, 54.4°F a year)138,144 people · 7 mi S
- Kearns metro township, UT39,398 people · 9 mi S
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
What do Salt Lake City's other NOAA stations record?
One more NOAA station keeps 1991-2020 normals in or near Salt Lake City. This page uses Salt Lake City International Airport; the other differs by site and elevation:
| Station | From the center | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| Salt Lake City E Bench USC00427655 | 7 mi SE | 4,850 ft | 53.1°F | 23°F | 92°F | – | – | April 25 |
Source: NOAA NCEI 1991-2020 normals for each station. Last frost: the median last spring date of 32°F.
Questions about Salt Lake City's climate
What is the coldest month in Salt Lake City?
January, with a normal high of 39°F and a normal low of 24°F. The warmest is July (94°F by day, 68°F at night).
Does it snow in Salt Lake City?
Yes: 52 inches in a normal year, falling on 31 days with 0.1 inch or more, the most in January (12.7 inches).
What is the rainiest month in Salt Lake City?
April, with 2.16 in of precipitation in a normal year; the driest is July with 0.49 in.
What plant hardiness zone is Salt Lake City in?
The USDA's 2023 map puts Salt Lake City in zones 6b to 7b across its 12 ZIP code areas (7b in 84116, the largest). By the same method at Salt Lake City's NOAA station, the coldest night of a typical year reaches 3°F (30 years, 1991-2020): zone 7a.
How late can frost come in Salt Lake City?
In half of years the last 32°F night comes after April 8; in one year in ten it comes after April 30. Waiting until April 30 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Salt Lake City in OctoberThis month day by day, its records and recent years
- Utah climateThe statewide normals and every place in the state
- Salt Lake Triad Center, UT4 miles from this station, 55.8°F a year
- North Salt Lake, UT7 miles from this station, 51.9°F a year
- City Creek Water Treatment Plant, UT7 miles from this station, 49.2°F a year
- Bountiful, UT10 miles from this station, 51.2°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made