Grand Island, NE

Nebraska · Records since 1895–2026

☁️ 86°F Feels like 83°
Currently in Grand Island
As of 1:30 PM CDT

Records for September 11

🔥 Record High

99°F

September 11, 2021

+18° from 81° normal

❄ Record Low

33°F

September 11, 1940

-23° from 56° normal
🌞 Normal high: 81°F 🌑 Normal low: 56°F 1991–2020 normals

All-Time Records — Grand Island

🔥
117°F
Hottest Day Ever
Jul 24, 1936
❄
-34°F
Coldest Day Ever
Feb 12, 1899
🌧
6.50"
Wettest Day Ever
May 11, 2005
☃
17.8"
Most Snow in One Day
Mar 20, 2006

First & Last Dates — Grand Island

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)
201 days
Longest growing season
1971
126 days
Shortest growing season
1924
167 days
Normal growing season
1991–2020 average

Top 10 Record Highs — September 11

# Temp Date
🏆 99°F September 11, 2021
2 99°F September 11, 1939
3 98°F September 11, 1899
4 97°F September 11, 2012
5 97°F September 11, 1906
6 96°F September 11, 1933
7 96°F September 11, 1931
8 95°F September 11, 1988
9 95°F September 11, 1927
10 93°F September 11, 1998

Top 5 Record Lows — September 11

# Temp Date
🥶 33°F September 11, 1940
2 40°F September 11, 1955
3 41°F September 11, 1975
4 42°F September 11, 1989
5 42°F September 11, 1950
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 1895–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Grand Island

threshold: 98°F (90th percentile of historical Jun–Aug highs)
4.7
Avg heat wave length
days (historical)
104°
Avg peak temp
during heat waves
18
Dangerous nights 2026
Overnights ≥ 70°F
0
Heat waves 2026
so far

Days ≥ 90°F Per Year

1896–2026
33
2026 so far
44
Avg/year 1970–2025
41
Avg/year (last 10 complete)
91
Most in a year (1934)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Grand Island

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jul 2, 1936 – Jul 28, 1936 27 117°F (Jul 24) 105°F 70°F
2 Jul 6, 1901 – Jul 28, 1901 23 108°F (Jul 21) 103°F 72°F
3 Jul 8, 1934 – Jul 25, 1934 18 116°F (Jul 15) 108°F 75°F
4 Jul 30, 1934 – Aug 12, 1934 14 112°F (Aug 8) 105°F 70°F
5 Aug 8, 1936 – Aug 18, 1936 11 109°F (Aug 12) 105°F 72°F
6 Jun 23, 1933 – Jul 2, 1933 10 107°F (Jun 30) 101°F 67°F
7 Jul 17, 1940 – Jul 25, 1940 9 111°F (Jul 24) 105°F 75°F
8 Jun 22, 1931 – Jun 30, 1931 9 105°F (Jun 27) 103°F 74°F
9 Jun 23, 1901 – Jul 1, 1901 9 103°F (Jun 29) 101°F 68°F
10 Jul 13, 1932 – Jul 21, 1932 9 103°F (Jul 14) 101°F 72°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

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

49
2026 total
above-normal nights
39.2
Avg / summer
1970–2020
63
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 (1895–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1895, annual totals have trended -0.02" per decade, about -0.3" 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 Grand Island is tracking against normal, year to date

Daily High Temperature vs Normal

Above normal Below normal

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

Precipitation, Year to Date

21.14"
2026 YTD
Normal: 21.34"
-0.20"
0.05"
September so far
September normal: 2.00"
-1.95"
8
2026 heavy rain days
Days with ≥ 1.0"

Accumulation vs. Normal

Running total since Jan 1 against the normal pace for the same date · Grand Island is 0.20" 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)
76.6°F
Average temperature
16th-warmest of 130
+4.4°
vs. average
Normal: 72.3°F (1991–2020)
3.92"
Precipitation
34th-wettest of 130
+1.05"
vs. average
Normal: 2.87" · 137% of normal

Average Temperature by Year — Aug 11 – Sep 10

1896–2026 · 2026 highlighted · trend -0.11° per decade (cooling since 1896)

Precipitation by Year — Aug 11 – Sep 10

1896–2026 · 2026 highlighted · trend -0.03" per decade (drier since 1896)

Warmest Aug 11 – Sep 10 on Record

# Year Avg Temp
1 1913 81.6°F
2 1983 80.6°F
3 1936 80.4°F
4 1947 80.1°F
5 1937 79.9°F
6 1922 79.2°F
7 1912 78.4°F
8 1931 78.2°F
9 1990 77.3°F
10 2013 77.0°F

Coolest Aug 11 – Sep 10 on Record

# Year Avg Temp
1 1920 65.7°F
2 1964 66.4°F
3 1992 66.5°F
4 1962 67.9°F
5 1950 68.3°F
6 1974 68.4°F
7 1986 68.6°F
8 2008 68.8°F
9 1915 69.0°F
10 1987 69.0°F

Wettest Aug 11 – Sep 10 on Record

# Year Total
1 1977 13.54"
2 1914 10.11"
3 1989 8.78"
4 2019 7.89"
5 1911 7.82"
6 1926 7.20"
7 1965 7.08"
8 1997 6.95"
9 1903 6.51"
10 1957 6.18"

Driest Aug 11 – Sep 10 on Record

# Year Total
1 1955 0.00"
2 1931 0.24"
3 1940 0.27"
4 1919 0.28"
5 2012 0.44"
6 1971 0.55"
7 2004 0.56"
8 2025 0.62"
9 1939 0.72"
10 2003 0.78"
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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