Salt Lake City, UT climate: monthly averages and frost dates
Salt Lake City, UT has cold winters and hot summers by this site's scale, with semi-arid annual precipitation. The figures are the 1991–2020 climate normals for NOAA station USW00024127 (SALT LAKE CITY INTL AP), 2 mi (3 km) in a straight line from the city's center point (US Census).
- Warmest month high
- 94.0°F
- July
- Coldest month mean
- 31.4°F
- January
- Precipitation
- 15.5 in
- per year
- Snowfall
- 51.9 in
- per year
- Median last frost
- April 8
- 32°F, spring
- Median first frost
- October 31
- 32°F, autumn
Monthly averages in Salt Lake City
| Month | High °F | Low °F | Mean °F | Precip. in | Snow in | Days ≥0.01 in | Days ≥90°F | Nights ≤32°F |
|---|---|---|---|---|---|---|---|---|
| January | 38.6 | 24.2 | 31.4 | 1.43 | 12.7 | 10.3 | 0.0 | 27.4 |
| February | 44.7 | 28.6 | 36.6 | 1.30 | 10.7 | 9.5 | 0.0 | 21.3 |
| March | 55.3 | 36.3 | 45.8 | 1.75 | 5.9 | 9.2 | 0.0 | 12.0 |
| April | 61.9 | 41.8 | 51.8 | 2.16 | 2.9 | 10.4 | 0.0 | 4.0 |
| May | 72.6 | 50.4 | 61.5 | 1.82 | 0.1 | 8.9 | 1.3 | 0.2 |
| June | 84.1 | 59.1 | 71.6 | 0.95 | 0.0 | 4.8 | 10.3 | 0.0 |
| July | 94.0 | 68.2 | 81.1 | 0.49 | 0.0 | 3.9 | 24.3 | 0.0 |
| August | 91.7 | 66.6 | 79.1 | 0.58 | 0.0 | 4.9 | 21.4 | 0.0 |
| September | 80.6 | 56.3 | 68.4 | 1.06 | 0.0 | 5.2 | 5.0 | 0.0 |
| October | 65.5 | 43.6 | 54.6 | 1.26 | 0.5 | 6.5 | 0.0 | 2.7 |
| November | 50.7 | 32.8 | 41.7 | 1.32 | 7.0 | 8.3 | 0.0 | 17.3 |
| December | 39.0 | 25.3 | 32.2 | 1.40 | 12.1 | 9.6 | 0.0 | 26.8 |
| Year | 64.9 | 44.4 | 54.7 | 15.52 | 51.9 | 91.5 | 62.2 | 111.8 |
How cold is winter in Salt Lake City?
Winters in Salt Lake City are cold by this site's scale (coldest-month mean 20 to under 32°F). The coldest month is January, with a mean temperature of 31.4°F (−0.3°C), a normal daily high of 38.6°F (3.7°C) and a normal daily low of 24.2°F (−4.3°C).
The station averages 111.8 nights a year at or below 32°F and 20.6 days when the high stays at or below 32°F.
The normal daily low is at or below freezing in December to February.
How hot is summer in Salt Lake City?
Summers in Salt Lake City are hot by this site's scale (hottest-month high 90 to under 100°F). July has the highest normal daily high, 94.0°F (34.4°C), with nights averaging 68.2°F (20.1°C).
The high reaches 90°F or more on 62.2 days in a normal year.
The normal daily high itself is 90°F or above in July and August.
What is the wettest month in Salt Lake City?
Salt Lake City gets 15.52 in (394 mm) of precipitation in a normal year, which this site classes as semi-arid (10 to under 20 in a year). The wettest month is April with 2.16 in (55 mm); the driest is July with 0.49 in (12 mm).
Measurable precipitation (0.01 in or more) falls on 91.5 days a year.
Does it snow in Salt Lake City?
Normal annual snowfall in Salt Lake City is 51.9 in (132 cm), which this site classes as heavy (36 to under 72 in a year).
January is the snowiest month, with 12.7 in (32 cm).
A day with 1.0 in or more of snowfall comes 16.1 times a year on average.
Which months are mild in Salt Lake City?
3 months in Salt Lake City meet this site's comfort thresholds (normal high 65–85°F, low 45°F or higher, fewer than 10 days with 0.10 in or more of precipitation): May, June and September.
Thresholds and their limits: methodology.
Frost dates and growing season in Salt Lake City
In Salt Lake City the median last spring night at or below 32°F is April 8, and the median first autumn one is October 31 (NOAA P50 dates). NOAA's median length of the freeze-free season is 204 days. NOAA takes that median over each year's own season, so it need not equal the 206 days between the two median dates.
There is still a 10% chance of a 32°F night on or after April 30, and a 10% chance that the first one has come by October 17.
The chance that the last spring 32°F night comes on or after March 17 is 90%.
For a hard freeze (28°F or lower) the median dates are March 15 in spring and November 10 in autumn.
| Chance | Last spring 32°F night on or after | First autumn 32°F night by | Freeze-free season, days |
|---|---|---|---|
| 10% | April 30 | October 17 | 229 |
| 20% | April 21 | October 22 | 219 |
| 30% | April 16 | October 25 | 213 |
| 40% | April 11 | October 28 | 208 |
| 50% | April 8 | October 31 | 204 |
| 60% | April 4 | November 2 | 198 |
| 70% | March 31 | November 5 | 193 |
| 80% | March 27 | November 9 | 187 |
| 90% | March 17 | November 13 | 177 |
| Threshold | Median last date (spring) | Median first date (autumn or winter) | Median season, days |
|---|---|---|---|
| 36°F | April 27 | October 19 | 174 |
| 32°F | April 8 | October 31 | 204 |
| 28°F | March 15 | November 10 | 237 |
| 24°F | February 28 | November 21 | 266 |
| 20°F | February 16 | December 1 | 288 |
| 16°F | February 5 | December 11 | 311 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 100% | 100% | 99% | 65% | 10% | 0% | 0% | 0% | 0% | 52% | 100% | 100% |
Nearby and similar places
Of the places on this site, the closest to Salt Lake City by station distance are Boise, ID at 291 mi (469 km), Las Vegas, NV at 368 mi (593 km) and Billings, MT at 388 mi (624 km).
Among places whose winter, summer and precipitation words are each within one band of Salt Lake City's (winter: cold, summer: hot, precipitation: semi-arid), the closest monthly temperature and precipitation patterns are Boise, ID, Spokane, WA and Billings, MT.
Compared with Boise, ID, Salt Lake City's peak-month normal high is 1.3°F (0.7°C) higher, its coldest-month mean is 0.7°F (0.4°C) lower, and its annual precipitation is 4.01 in more.
| Place | Listed as | Station distance | Coldest mean °F | Warmest high °F | Precip. in/yr | Snow in/yr | Last frost |
|---|---|---|---|---|---|---|---|
| Salt Lake City, UT | this page | – | 31.4 | 94.0 | 15.5 | 51.9 | April 8 |
| Boise, ID | nearby, similar | 291 mi (469 km) | 32.1 | 92.7 | 11.5 | 17.6 | April 24 |
| Las Vegas, NV | nearby | 368 mi (593 km) | 48.2 | 104.5 | 4.2 | 0.2 | January 20 |
| Billings, MT | nearby, similar | 388 mi (624 km) | 27.0 | 87.3 | 14.3 | 57.4 | May 4 |
| Spokane, WA | similar | 547 mi (880 km) | 29.1 | 84.4 | 16.4 | 45.4 | April 26 |
How nearby and similar places are chosen: methodology.
Source and station
The data for Salt Lake City come from NOAA station SALT LAKE CITY INTL AP, UT US (USW00024127) at 40.7781, -111.9694, elevation 4,225 ft (1288 m). It lies 2 mi (3 km) in a straight line from the center point of Salt Lake City city, the “internal point” in the US Census 2024 Gazetteer.
Each monthly normal used here rests on at least 28 years of data from 1991–2020 (NOAA's per-field year counts).
NOAA completeness flags on the monthly fields used here:
- S: Standard: meets WMO standards for data availability for 24 or more years.
Cite the data as:
Palecki, Michael; Durre, Imke; Applequist, Scott; Arguez, Anthony; Lawrimore, Jay (2021). U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991-2020). Station USW00024127 (SALT LAKE CITY INTL AP, UT US). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/wck8-er13. Accessed 2026-10-09.
Palecki, Michael; Durre, Imke; Applequist, Scott; Arguez, Anthony; Lawrimore, Jay (2021). U.S. Climate Normals 2020: U.S. Annual/Seasonal Climate Normals (1991-2020). Station USW00024127 (SALT LAKE CITY INTL AP, UT US). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/4ek7-fk11. Accessed 2026-10-09.
Files used: monthly normals CSV, annual/seasonal normals CSV (retrieved 2026-10-09). The values on this page as JSON: /us/ut/salt-lake-city/data.json.