Concordia, KS

Kansas · Records since 1885–2026

☀️ 88°F
Currently in Concordia
As of 1:30 PM CDT

Records for September 11

🔥 Record High

102°F

September 11, 1956

+20° from 82° normal

❄ Record Low

40°F

September 11, 1940

-18° from 58° normal
🌞 Normal high: 82°F 🌑 Normal low: 58°F 1991–2020 normals

All-Time Records — Concordia

🔥
116°F
Hottest Day Ever
Aug 12, 1936
❄
-33°F
Coldest Day Ever
Jan 8, 1886
🌧
5.07"
Wettest Day Ever
Jun 9, 1967
☃
13.2"
Most Snow in One Day
Feb 11, 1965

First & Last Dates — Concordia

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)
223 days
Longest growing season
1915
147 days
Shortest growing season
1995
181 days
Normal growing season
1991–2020 average

Top 10 Record Highs — September 11

# Temp Date
🏆 102°F September 11, 1956
2 99°F September 11, 1911
3 98°F September 11, 2000
4 98°F September 11, 1895
5 97°F September 11, 1991
6 96°F September 11, 1936
7 96°F September 11, 1933
8 96°F September 11, 1909
9 95°F September 11, 2021
10 95°F September 11, 1939

Top 5 Record Lows — September 11

# Temp Date
🥶 40°F September 11, 1940
2 40°F September 11, 1894
3 43°F September 11, 1959
4 45°F September 11, 1896
5 45°F September 11, 1892
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 1885–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Concordia

threshold: 99°F (90th percentile of historical Jun–Aug highs)
4.5
Avg heat wave length
days (historical)
105°
Avg peak temp
during heat waves
37
Dangerous nights 2026
Overnights ≥ 70°F
2
Heat waves 2026
so far

Days ≥ 90°F Per Year

1885–2026
54
2026 so far
50
Avg/year 1970–2025
61
Avg/year (last 10 complete)
83
Most in a year (1936)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Concordia

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jul 8, 1934 – Jul 25, 1934 18 114°F (Jul 13) 106°F 79°F
2 Jul 4, 1980 – Jul 20, 1980 17 109°F (Jul 11) 105°F 74°F
3 Aug 9, 1936 – Aug 21, 1936 13 116°F (Aug 12) 107°F 77°F
4 Jul 31, 1934 – Aug 12, 1934 13 109°F (Jul 31) 105°F 78°F
5 Aug 12, 1913 – Aug 21, 1913 10 106°F (Aug 13) 102°F 75°F
6 Aug 7, 2000 – Aug 16, 2000 10 106°F (Aug 8) 102°F 73°F
7 Jul 7, 1901 – Jul 16, 1901 10 104°F (Jul 15) 102°F 73°F
8 Aug 30, 1913 – Sep 7, 1913 9 104°F (Aug 30) 101°F 73°F
9 Jul 9, 1939 – Jul 16, 1939 8 110°F (Jul 12) 104°F 74°F
10 Aug 27, 2000 – Sep 3, 2000 8 109°F (Sep 2) 103°F 70°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

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

53
2026 total
above-normal nights
43.8
Avg / summer
1970–2020
70
Most in a summer
1934

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 (1885–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1885, annual totals have trended +0.18" per decade, about +2.5" 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 Concordia is tracking against normal, year to date

Daily High Temperature vs Normal

Above normal Below normal

157 of 253 days with data were above the 1991–2020 normal high for their date.

Precipitation, Year to Date

17.81"
2026 YTD
Normal: 22.32"
-4.51"
0.13"
September so far
September normal: 2.80"
-2.67"
3
2026 heavy rain days
Days with ≥ 1.0"

Accumulation vs. Normal

Running total since Jan 1 against the normal pace for the same date · Concordia is 4.51" behind the normal pace

Period Review — Aug 11 – Sep 10, 2026

Any window, evaluated against every other year on record — 31 days

Quick picks: Last 7 days Last 30 days Last 90 days This month
Seasons: Spring (Mar–May) Summer (Jun–Aug) Fall (Sep–Nov)
82.1°F
Average temperature
7th-warmest of 142
+7.2°
vs. average
Normal: 74.9°F (1991–2020)
2.51"
Precipitation
62nd-driest of 141
-0.43"
vs. average
Normal: 2.94" · 85% of normal

Average Temperature by Year — Aug 11 – Sep 10

1885–2026 · 2026 highlighted

Precipitation by Year — Aug 11 – Sep 10

1885–2026 · 2026 highlighted · trend -0.02" per decade (drier since 1885)

Warmest Aug 11 – Sep 10 on Record

# Year Avg Temp
1 1936 85.9°F
2 1913 84.4°F
3 1947 83.9°F
4 2000 83.3°F
5 1983 82.9°F
6 1990 82.4°F
7 2026 82.1°F
8 1922 82.0°F
9 1912 81.4°F
10 2023 81.0°F

Coolest Aug 11 – Sep 10 on Record

# Year Avg Temp
1 1885 67.3°F
2 2008 68.8°F
3 1992 68.9°F
4 1967 69.2°F
5 1920 69.2°F
6 1950 69.6°F
7 1915 70.4°F
8 1891 70.5°F
9 1890 71.0°F
10 2009 71.1°F

Wettest Aug 11 – Sep 10 on Record

# Year Total
1 1935 10.38"
2 1977 9.44"
3 1946 9.40"
4 1989 9.11"
5 2018 9.11"
6 1944 8.16"
7 1958 7.90"
8 1986 6.88"
9 2014 6.87"
10 1951 6.69"

Driest Aug 11 – Sep 10 on Record

# Year Total
1 1955 0.05"
2 1947 0.28"
3 1971 0.33"
4 2000 0.34"
5 1998 0.36"
6 1994 0.90"
7 1919 0.96"
8 1974 1.00"
9 2022 1.01"
10 2004 1.05"
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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