Havre, MT

Montana · Records since 1880–2026

🌤️ 60°F Feels like 53°
Currently in Havre
As of 12:30 PM MDT

Records for September 11

🔥 Record High

94°F

September 11, 2017

+19° from 75° normal

❄ Record Low

23°F

September 11, 1989

-21° from 44° normal
🌞 Normal high: 75°F 🌑 Normal low: 44°F 1991–2020 normals

All-Time Records — Havre

🔥
111°F
Hottest Day Ever
Aug 5, 1961
❄
-57°F
Coldest Day Ever
Jan 27, 1916
🌧
3.27"
Wettest Day Ever
Jul 16, 1884
☃
24.8"
Most Snow in One Day
May 2, 1899

First & Last Dates — Havre

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)
178 days
Longest growing season
1940
58 days
Shortest growing season
1892
129 days
Normal growing season
1991–2020 average

Top 10 Record Highs — September 11

# Temp Date
🏆 94°F September 11, 2017
2 94°F September 11, 1958
3 94°F September 11, 1919
4 93°F September 11, 1981
5 92°F September 11, 1969
6 91°F September 11, 2011
7 91°F September 11, 1968
8 90°F September 11, 1948
9 89°F September 11, 2022
10 89°F September 11, 1990

Top 5 Record Lows — September 11

# Temp Date
🥶 23°F September 11, 1989
2 23°F September 11, 1889
3 28°F September 11, 1921
4 30°F September 11, 1890
5 31°F September 11, 1913
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 1880–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Havre

threshold: 94°F (90th percentile of historical Jun–Aug highs)
4.1
Avg heat wave length
days (historical)
101°
Avg peak temp
during heat waves
0
Dangerous nights 2026
Overnights ≥ 70°F
4
Heat waves 2026
so far

Days ≥ 90°F Per Year

1880–2026
29
2026 so far
23
Avg/year 1970–2025
31
Avg/year (last 10 complete)
60
Most in a year (2001)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Havre

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jul 1, 1985 – Jul 12, 1985 12 102°F (Jul 10) 97°F 59°F
2 Jul 14, 1936 – Jul 24, 1936 11 107°F (Jul 17) 101°F 67°F
3 Jul 14, 1960 – Jul 23, 1960 10 105°F (Jul 22) 99°F 65°F
4 Aug 18, 1969 – Aug 26, 1969 9 110°F (Aug 24) 98°F 52°F
5 Jul 8, 1886 – Jul 16, 1886 9 108°F (Jul 12) 102°F 67°F
6 Jul 22, 2006 – Jul 29, 2006 8 101°F (Jul 22) 98°F 62°F
7 Aug 2, 1971 – Aug 8, 1971 7 105°F (Aug 5) 102°F 64°F
8 Jul 20, 1931 – Jul 26, 1931 7 103°F (Jul 21) 100°F 62°F
9 Jul 3, 2001 – Jul 9, 2001 7 103°F (Jul 4) 99°F 59°F
10 Jul 7, 2012 – Jul 13, 2012 7 100°F (Jul 9) 97°F 58°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
42.4
Avg / summer
1970–2020
73
Most in a summer
1936

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 (1880–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1880, annual totals have trended -0.18" per decade, about -2.6" 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 Havre 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

7.57"
2026 YTD
Normal: 9.47"
-1.90"
0.47"
September so far
September normal: 1.06"
-0.59"
1
2026 heavy rain days
Days with ≥ 1.0"

Accumulation vs. Normal

Running total since Jan 1 against the normal pace for the same date · Havre is 1.90" 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)
63.0°F
Average temperature
46th-warmest of 147
+2.0°
vs. average
Normal: 61.0°F (1991–2020)

Average Temperature by Year — Sep 3 – Sep 10

1880–2026 · 2026 highlighted · trend +0.32° per decade (warming since 1880)

Precipitation by Year — Sep 3 – Sep 10

1880–2024 · 2026 highlighted · trend -0.01" per decade (drier since 1880)

Warmest Sep 3 – Sep 10 on Record

# Year Avg Temp
1 1998 72.3°F
2 1963 72.3°F
3 2013 70.4°F
4 1990 70.4°F
5 1967 69.9°F
6 1978 68.6°F
7 1966 68.5°F
8 2024 68.1°F
9 1931 67.9°F
10 2022 67.7°F

Coolest Sep 3 – Sep 10 on Record

# Year Avg Temp
1 1884 46.8°F
2 1929 48.2°F
3 1881 49.4°F
4 1965 49.5°F
5 1964 49.8°F
6 1890 50.5°F
7 1889 51.0°F
8 1989 51.1°F
9 1911 51.4°F
10 1962 51.4°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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