Weather in South Salt Lake, Utah
High country wildflowers peak. Day 58 of spring. Read this microseason across nine climate regions →
- TodayMay 16Overcast—69°52°
- SundayMay 17Heavy Drizzle32%59°46°
- MondayMay 18Drizzle93%53°41°
- TuesdayMay 19Overcast—64°45°
- WednesdayMay 20Overcast—74°51°
- ThursdayMay 21Overcast—72°54°
- FridayMay 22Overcast—80°55°
- PM 2.5
- 6.7 μg/m³
- PM 10
- 28.8 μg/m³
- NO₂
- 1.2 μg/m³
- Ozone
- 108.0 μg/m³
- UV Index
- 1.6 Low
Flowers blooming in late autumn, a sure sign of a bad winter coming.
- Moonrise
- 11:34 AM
- Moonset
- 1:56 AM
- In sign
- ♉︎ Taurus
High country wildflowers peak
South Salt Lake at a glance
- Today vs. normal: 69°F — typical for the season
- Last frost: April 20 (climatological average for this latitude)
- Microseason: 28 of 72, May 16–20
- Planting window: Direct sow okra, melons, and southern peas. Thin carrot rows.
Right now in the garden
Warm-season window is open
As of May 16, the last spring frost has passed for most years. Transplant tomatoes, peppers, eggplants, basil, and cucurbits (cucumbers, squash, melons) now. Direct-sow beans and corn into warm soil.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
South Salt Lake's warmest month is July (~81°F mean) and its coldest is January (~34°F). Rainfall peaks in April (2.5 inches) and bottoms out in July (0.6 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 34° | 1.5″ | 5 |
| February | 39° | 1.4″ | 5 |
| March | 47° | 2.0″ | 5 |
| April | 53° | 2.5″ | 6 |
| May | 62° | 2.1″ | 5 |
| June | 72° | 1.1″ | 3 |
| July | 81° | 0.6″ | 2 |
| August | 79° | 0.6″ | 2 |
| September | 69° | 1.3″ | 3 |
| October | 56° | 1.4″ | 4 |
| November | 44° | 1.6″ | 4 |
| December | 34° | 1.6″ | 5 |
Regional context
South Salt Lake sits within a cold semi-arid climate region — a cohort that shares similar temperature ranges, seasonal patterns, and growing conditions across nearby cities.
Similar climates: Salt Lake City, UT, Provo, UT, Ogden, UT, West Valley City, UT, Logan, UT.
Frequently asked
- When does it freeze in South Salt Lake?
- South Salt Lake's last spring frost typically falls around mid-April, and the first fall frost arrives around mid-November.
- What is the rainy season in South Salt Lake?
- April is the wettest month with about 2.5 inches of rain on average; the city receives roughly 18 inches annually.
- What is the warmest month in South Salt Lake?
- July is typically warmest, averaging about 81°F.
- What is the coldest month in South Salt Lake?
- January is typically coldest, averaging about 34°F.
- When can I start a vegetable garden in South Salt Lake?
- Cool-season crops (peas, lettuce) can be sown around the last spring frost (mid-April); warm-season crops (tomatoes, peppers) wait until 1–2 weeks after.
- How many rainy days does South Salt Lake get?
- South Salt Lake averages about 48 rainy days per year.
- What hardiness zone is South Salt Lake?
- South Salt Lake's USDA hardiness zone is determined by its lowest average winter temperature; check the USDA's online lookup with the city ZIP for the current zone designation.
Climate
South Salt Lake, Utah sits in a cold semi-arid climate zone. January means hover near 34°F while July averages 81°F — a 47°F seasonal swing.
Across the year, South Salt Lake receives about 18 inches of precipitation spread over roughly 48 rainy days.
The rhythm of the year is set by latitude (40.7°N), proximity to large water bodies, and elevation — all of which shape what grows here, when frost is likely, and what the weather story looks like day to day.