Alturas, CA

California · Records since 1935–2026

☁️ 63°F Feels like 54°
Currently in Alturas
As of 4:00 PM PST

Records for November 12

🔥 Record High

73°F

November 12, 1956

+21° from 52° normal

❄ Record Low

-17°F

November 12, 1985

-42° from 25° normal
🌞 Normal high: 52°F 🌑 Normal low: 25°F 1991–2020 normals

All-Time Records — Alturas

🔥
107°F
Hottest Day Ever
Jul 11, 2002
❄
-34°F
Coldest Day Ever
Dec 9, 1972
🌧
3.51"
Wettest Day Ever
Dec 11, 1937
☃
15.0"
Most Snow in One Day
Mar 17, 1982

First & Last Dates — Alturas

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)
128 days
Longest growing season
2017
0 days
Shortest growing season
1955
79 days
Normal growing season
1991–2020 average

Top 10 Record Highs — November 12

# Temp Date
🏆 73°F November 12, 1956
2 70°F November 12, 1999
3 70°F November 12, 1990
4 70°F November 12, 1989
5 70°F November 12, 1959
6 70°F November 12, 1936
7 69°F November 12, 1963
8 68°F November 12, 2021
9 68°F November 12, 2013
10 68°F November 12, 1942

Top 5 Record Lows — November 12

# Temp Date
🥶 -17°F November 12, 1985
2 -4°F November 12, 1938
3 3°F November 12, 1978
4 7°F November 12, 2018
5 8°F November 12, 1980
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 1935–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Alturas

threshold: 95°F (90th percentile of historical Jun–Aug highs)
4.6
Avg heat wave length
days (historical)
100°
Avg peak temp
during heat waves
0
Dangerous nights 2026
Overnights ≥ 70°F
1
Heat waves 2026
so far

Days ≥ 90°F Per Year

1935–2026
40
2026 so far
35
Avg/year 1970–2025
48
Avg/year (last 10 complete)
66
Most in a year (2021)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Alturas

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jul 18, 1988 – Aug 1, 1988 15 104°F (Jul 31) 99°F 50°F
2 Aug 12, 1967 – Aug 24, 1967 13 105°F (Aug 19) 100°F 46°F
3 Jul 16, 1959 – Jul 27, 1959 12 101°F (Jul 17) 98°F 49°F
4 Jul 5, 2021 – Jul 14, 2021 10 102°F (Jul 10) 99°F 49°F
5 Jul 4, 2024 – Jul 13, 2024 10 102°F (Jul 6) 100°F 48°F
6 Aug 30, 1955 – Sep 7, 1955 9 106°F (Sep 4) 101°F 42°F
7 Jul 16, 1960 – Jul 23, 1960 8 107°F (Jul 19) 100°F 45°F
8 Jun 26, 2021 – Jul 3, 2021 8 105°F (Jun 28) 99°F 54°F
9 Aug 4, 1972 – Aug 11, 1972 8 104°F (Aug 8) 99°F 49°F
10 Jul 24, 2022 – Jul 31, 2022 8 104°F (Jul 26) 101°F 53°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

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

34
2026 total
above-normal nights
30.5
Avg / summer
1970–2020
69
Most in a summer
2017

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 (1935–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1935, annual totals have trended -0.04" per decade, about -0.4" 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 Alturas is tracking against normal, year to date

Daily High Temperature vs Normal

Above normal Below normal

200 of 294 days with data were above the 1991–2020 normal high for their date.

Precipitation, Year to Date

7.55"
2026 YTD
Normal: 9.38"
-1.83"
0.15"
November so far
November normal: 1.20"
-1.05"
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 · Alturas is 1.83" behind the normal pace

Period Review — Aug 12 – Nov 10, 2026

Any window, evaluated against every other year on record — 91 days

Quick picks: Last 7 days Last 30 days Last 90 days This month
Seasons: Spring (Mar–May) Summer (Jun–Aug) Fall (Sep–Nov)
53.6°F
Average temperature
42nd-coolest of 89
-0.4°
vs. average
Normal: 54.0°F (1991–2020)

Average Temperature by Year — Aug 12 – Nov 10

1936–2026 · 2026 highlighted · trend +0.07° per decade (warming since 1936)

Precipitation by Year — Aug 12 – Nov 10

1937–2025 · 2026 highlighted · trend -0.06" per decade (drier since 1937)

Warmest Aug 12 – Nov 10 on Record

# Year Avg Temp
1 1967 57.6°F
2 1958 57.5°F
3 2014 57.1°F
4 1955 56.8°F
5 1952 56.5°F
6 1991 56.5°F
7 1950 56.4°F
8 1987 56.3°F
9 2020 56.3°F
10 2025 56.3°F

Coolest Aug 12 – Nov 10 on Record

# Year Avg Temp
1 1971 50.1°F
2 1985 50.6°F
3 1973 51.0°F
4 1946 51.0°F
5 1984 51.2°F
6 1982 51.4°F
7 1948 51.5°F
8 1989 51.5°F
9 2002 51.8°F
10 2005 51.9°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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