Salt Lake City, UT

Utah · Records since 1874–2026

☀️ 85°F Feels like 79°
Currently in Salt Lake City
As of 12:30 PM MDT

Records for September 11

🔥 Record High

97°F

September 11, 1990

+14° from 83° normal

❄ Record Low

38°F

September 11, 1947

-20° from 58° normal
🌞 Normal high: 83°F 🌑 Normal low: 58°F 1991–2020 normals

All-Time Records — Salt Lake City

🔥
109°F
Hottest Day Ever
Jul 12, 2026
❄
-30°F
Coldest Day Ever
Feb 9, 1933
🌧
2.64"
Wettest Day Ever
May 3, 1901
☃
14.0"
Most Snow in One Day
Nov 24, 1908

First & Last Dates — Salt Lake City

How early and how late each seasonal turning point has ever arrived, across the full period of record

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Range ever recorded Normal date (1991–2020)
242 days
Longest growing season
2016
124 days
Shortest growing season
1954
193 days
Normal growing season
1991–2020 average

Top 10 Record Highs — September 11

# Temp Date
🏆 97°F September 11, 1990
2 94°F September 11, 1993
3 94°F September 11, 1958
4 93°F September 11, 1963
5 93°F September 11, 1956
6 93°F September 11, 1937
7 92°F September 11, 2004
8 92°F September 11, 1948
9 91°F September 11, 2017
10 91°F September 11, 2016

Top 5 Record Lows — September 11

# Temp Date
🥶 38°F September 11, 1947
2 39°F September 11, 1916
3 40°F September 11, 1931
4 40°F September 11, 1909
5 41°F September 11, 1964
About this data — Records are sourced from the NOAA Threadex dataset via RCC ACIS, a quality-controlled record for long-term climate stations. Threadex adjusts for station relocations and observation-time changes, making records comparable across all years since 1874–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Salt Lake City

threshold: 97°F (90th percentile of historical Jun–Aug highs)
4.7
Avg heat wave length
days (historical)
101°
Avg peak temp
during heat waves
43
Dangerous nights 2026
Overnights ≥ 70°F
5
Heat waves 2026
so far

Days ≥ 90°F Per Year

1874–2026
69
2026 so far
48
Avg/year 1970–2025
73
Avg/year (last 10 complete)
86
Most in a year (2022)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Salt Lake City

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jul 10, 2003 – Jul 24, 2003 15 105°F (Jul 12) 102°F 72°F
2 Jul 2, 2022 – Jul 14, 2022 13 104°F (Jul 9) 100°F 75°F
3 Jul 14, 2013 – Jul 26, 2013 13 102°F (Jul 19) 100°F 71°F
4 Jun 18, 1961 – Jun 29, 1961 12 104°F (Jun 21) 100°F 63°F
5 Jul 17, 1931 – Jul 27, 1931 11 106°F (Jul 21) 102°F 65°F
6 Jul 21, 2023 – Jul 31, 2023 11 106°F (Jul 22) 101°F 75°F
7 Jul 12, 1960 – Jul 22, 1960 11 105°F (Jul 20) 102°F 65°F
8 Jul 3, 2021 – Jul 13, 2021 11 104°F (Jul 7) 101°F 73°F
9 Jul 6, 1954 – Jul 16, 1954 11 101°F (Jul 12) 99°F 68°F
10 Aug 30, 2022 – Sep 8, 2022 10 107°F (Sep 7) 102°F 71°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

Nights where the overnight low exceeded the 1991–2020 normal low

63
2026 total
above-normal nights
28.2
Avg / summer
1970–2020
74
Most in a summer
2013

Above-Normal Summer Nights Per Year

Average June–August Low by Decade

Overnight lows · complete decades only

Precipitation

Annual totals and trend across the full period of record · see this year's standing →

Monthly Precipitation — Last 24 Months

Blue = actual · dashed line = monthly normal

Annual Precipitation Per Year (1874–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1874, annual totals have trended -0.05" per decade, about -0.8" across the record.

Heavy Rain Days Per Year (≥ 1.0")

Compare year-to-year changes in days with heavy rainfall (≥ 1.0")

This Year — 2026

How Salt Lake City is tracking against normal, year to date

Daily High Temperature vs Normal

Above normal Below normal

181 of 252 days with data were above the 1991–2020 normal high for their date.

Precipitation, Year to Date

7.57"
2026 YTD
Normal: 10.78"
-3.21"
0.00"
September so far
September normal: 1.06"
-1.06"
0
2026 heavy rain days
Days with ≥ 1.0"

Accumulation vs. Normal

Running total since Jan 1 against the normal pace for the same date · Salt Lake City is 3.21" behind the normal pace

Period Review — Sep 3 – Sep 10, 2026

Any window, evaluated against every other year on record — 8 days

Quick picks: Last 7 days Last 30 days Last 90 days This month
Seasons: Spring (Mar–May) Summer (Jun–Aug) Fall (Sep–Nov)
73.8°F
Average temperature
25th-warmest of 153
+2.3°
vs. average
Normal: 71.4°F (1991–2020)

Average Temperature by Year — Sep 3 – Sep 10

1874–2026 · 2026 highlighted · trend +0.44° per decade (warming since 1874)

Precipitation by Year — Sep 3 – Sep 10

1874–2025 · 2026 highlighted

Warmest Sep 3 – Sep 10 on Record

# Year Avg Temp
1 2022 83.6°F
2 2017 79.4°F
3 2024 78.6°F
4 2013 77.6°F
5 2025 77.3°F
6 1990 77.1°F
7 1952 76.8°F
8 1883 76.7°F
9 1979 76.7°F
10 1998 76.5°F

Coolest Sep 3 – Sep 10 on Record

# Year Avg Temp
1 1884 53.6°F
2 1929 56.9°F
3 1912 59.6°F
4 1878 59.7°F
5 1894 60.2°F
6 1941 60.9°F
7 1881 61.1°F
8 1890 61.8°F
9 1970 61.8°F
10 1886 62.1°F
About this data. Pick any start and end date and this becomes the same kind of review as the Month and Fall tabs, just for exactly the window you asked for — the generalized version of the same engine, evaluated across every year on record. Average temperature is the mean of each day's (high + low) / 2; precipitation is the sum of daily totals. A year missing more than about a fifth of the window's days is excluded from the temperature ranking; any missing day excludes a year from the precipitation ranking, since an unreported day is unreported rain. Ranges that cross from December into January aren't supported yet. Normals are the 1991–2020 mean for the same window.
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