Bishop, CA

California · Records since 1943–2026

🌙 76°F Feels like 66°
Currently in Bishop
As of 7:00 PM PDT

Records for September 26

🔥 Record High

96°F

September 26, 2010

+10° from 86° normal

❄ Record Low

26°F

September 26, 1986

-18° from 44° normal
🌞 Normal high: 86°F 🌑 Normal low: 44°F 1991–2020 normals

All-Time Records — Bishop

🔥
111°F
Hottest Day Ever
Jul 7, 2024
❄
-8°F
Coldest Day Ever
Dec 22, 1990
🌧
4.00"
Wettest Day Ever
Jan 4, 2008
☃
16.2"
Most Snow in One Day
Jan 2, 2006

First & Last Dates — Bishop

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)
222 days
Longest growing season
1992
111 days
Shortest growing season
1954
168 days
Normal growing season
1991–2020 average

Top 10 Record Highs — September 26

# Temp Date
🏆 96°F September 26, 2010
2 96°F September 26, 2009
3 95°F September 26, 2020
4 95°F September 26, 2015
5 95°F September 26, 1999
6 95°F September 26, 1963
7 94°F September 26, 2024
8 94°F September 26, 2003
9 93°F September 26, 1954
10 92°F September 26, 2022

Top 5 Record Lows — September 26

# Temp Date
🥶 26°F September 26, 1986
2 26°F September 26, 1948
3 29°F September 26, 1971
4 33°F September 26, 1970
5 36°F September 26, 1984
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 1943–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Bishop

threshold: 103°F (90th percentile of historical Jun–Aug highs)
4.8
Avg heat wave length
days (historical)
106°
Avg peak temp
during heat waves
0
Dangerous nights 2026
Overnights ≥ 70°F
2
Heat waves 2026
so far

Days ≥ 90°F Per Year

1943–2026
99
2026 so far
98
Avg/year 1970–2025
110
Avg/year (last 10 complete)
134
Most in a year (2020)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Bishop

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jul 21, 2016 – Aug 3, 2016 14 108°F (Jul 27) 106°F 61°F
2 Jul 11, 2005 – Jul 23, 2005 13 108°F (Jul 18) 105°F 62°F
3 Jul 11, 2020 – Jul 21, 2020 11 108°F (Jul 12) 105°F 59°F
4 Jul 31, 2026 – Aug 10, 2026 11 107°F (Aug 2) 106°F 58°F
5 Jul 30, 1978 – Aug 9, 1978 11 106°F (Aug 6) 104°F 61°F
6 Jul 3, 2024 – Jul 12, 2024 10 111°F (Jul 7) 109°F 61°F
7 Jun 17, 2017 – Jun 25, 2017 9 107°F (Jun 20) 105°F 64°F
8 Aug 31, 2022 – Sep 8, 2022 9 107°F (Sep 2) 105°F 59°F
9 Jul 5, 2021 – Jul 12, 2021 8 111°F (Jul 10) 107°F 64°F
10 Jul 7, 2002 – Jul 14, 2002 8 110°F (Jul 10) 105°F 62°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

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

51
2026 total
above-normal nights
42.4
Avg / summer
1970–2020
70
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 (1943–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1943, annual totals have trended +0.02" per decade, about +0.2" 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 Bishop is tracking against normal, year to date

Daily High Temperature vs Normal

Above normal Below normal

159 of 267 days with data were above the 1991–2020 normal high for their date.

Precipitation, Year to Date

3.57"
2026 YTD
Normal: 3.48"
+0.09"
0.28"
September so far
September normal: 0.11"
+0.17"
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 · Bishop is 0.09" ahead of the normal pace

Period Review — Jun 27 – Sep 25, 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)
75.0°F
Average temperature
20th-warmest of 83
+0.7°
vs. average
Normal: 74.4°F (1991–2020)

Average Temperature by Year — Jun 27 – Sep 25

1944–2026 · 2026 highlighted · trend +0.31° per decade (warming since 1944)

Precipitation by Year — Jun 27 – Sep 25

1944–2025 · 2026 highlighted · trend +0.02" per decade (wetter since 1944)

Warmest Jun 27 – Sep 25 on Record

# Year Avg Temp
1 2021 77.8°F
2 2022 77.8°F
3 2020 77.4°F
4 2018 76.8°F
5 2024 76.7°F
6 2014 76.2°F
7 2017 75.9°F
8 1981 75.7°F
9 2016 75.6°F
10 2003 75.6°F

Coolest Jun 27 – Sep 25 on Record

# Year Avg Temp
1 1946 70.2°F
2 1947 71.0°F
3 1986 71.1°F
4 1965 71.3°F
5 1978 71.5°F
6 1985 71.7°F
7 1976 71.8°F
8 1954 71.9°F
9 1997 71.9°F
10 1983 72.1°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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